JP2004064726A - Thin flat speaker device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive and robust thin flat speaker as an improvement of a thin flat speaker. <P>SOLUTION: The inexpensive and robust thin flat speaker device has a diaphragm 110 consisting of a laminated compound plate of aluminum foils and a low-foaming polyethylene sheet in which the low-foaming polyethylene sheet having independent bubbles constitutes a core 111 and the aluminum foils 112 and 113 are bonded on the front and rear sides of the core 111 to make the total thickness to 1.5 to 6.0 mm. A vibration imparting part 120 for imparting vibration to the diaphragm 110 in accordance with an acoustic electric signal is fixed on one of the front and rear sides of the diaphragm 110. <P>COPYRIGHT: (C)2004,JPO

Description

そして、本発明の第１実施形態にかかる薄型フラットスピーカー装置１の振動板１１０および振動板１１０の駆動に使用する振動付与部１２０は公知の技術を応用しているもので、例えば、特開２００１−３５９１８８号公報「駆動ユニット及びこれを備えたパネルスピーカー」、特開２００２−２７５８８号公報「パネル型スピーカーシステム」あるいは特開平１１−２２０７８５公報「パネル型スピーカー装置」に記載されたパネル型スピーカー装置と同様に、本発明の第１実施形態にかかる振動付与部１２０に相当するドライバーユニットにより、振動板１１０を駆動して出力再生を行う曲げ波動理論に基づくパネル型スピーカー装置を基本構成としている。
【００５３】
具体的には、英国ニュー・トランスデューサー・リミテッド社のＮＸＴ（登録商標）ＤＭ（Ｄｉｓｔｒｉｂｕｔｅｄ　Ｍｏｄｅ）方式のパネルスピーカーの技術を応用したものである。これを用いることで、双指向性を備え、中高域でフラットな周波数特性が実現されるとともに、振動板に細かい分割振動が生じることから大きな放射面積が得られ、振動板から離れても音圧レベルが維持され充分なエネルギーが得られるものである。
【００５４】
即ち、振動付与部１２０に相当するドライバーユニットにより振動板１１０に前記振動による部分的な曲げ動作を生じさせて放音が行われるものである。ここで、前記公知のドライバユニットにより振動される振動板１１０は、通常外周部が非拘束状態で自由振動することから低周波数帯域においても良好な音質の再生出力を行えるというものである。しかし、本発明の後述する提示板に用いる薄型フラットスピーカー装置、スピーカー自体を自立して立てて置けるようにした自立型の薄型フラットスピーカー装置、ディスプレイ装置に取付けて用いる薄型フラットスピーカー装置、壁面に取付けて用いる薄型フラットスピーカー装置においては、振動板（放音面）１１０の周囲を取付け、支持、固定するために、あるいは美観の上で周囲の切断面を隠すため等の理由により、振動板（放音面）１１０の周囲にフレームを設けることが必要になるが、振動板（放音面）１１０が大型の場合、前記振動による部分的な曲げ動作を十分許容できるために振動板（放音面）１１０の周囲をフレームに固定しても支障なく、良好な音質の再生出力が行えるものである。そして、振動板（放音面）１１０が小型の場合は、振動板１１０の周囲とフレームとの間に弾性体を介在させることで前記振動による部分的な曲げ動作を殺さないように支持し、良好な音質の再生出力を行えるようにしてある。
【００５５】
続いて、上述した振動付与部１２０の具体的構成について説明する。振動付与部１２０は、図１に示すように、振動板１１０に固着（接着固定）されるボビン１２１と、ボビン１２１に巻装されるボイスコイル１２２と、ボイスコイル１２２が挿入される磁気ギャップ１２３と、振動板１１０に板バネ１２４を介して固着（接着固定）されるハウジング１２５と、ハウジング１２５の底板１２５ａに固着された永久磁石１２６と、永久磁石１２６に固着された鉄板１２７を備えている。なお、この永久磁石１２６、鉄板１２７に磁気ギャップ１２３が形成されている。
【００５６】
また、１２８はダンパーで、前記ボビン１２１と鉄板１２７との間を揺動可能に連結している。１２９は、図外のＣＤやＭＤなどの外部音響機器、アンプ等からの接続コードが接続可能になったジャックで、１２９ａは、ジャック１２９と前記ボイスコイル１２２との間に配線されたリード線である。
【００５７】
以上の構成を有することで、ボイスコイル１２２に電気音響信号を与えることにより、音響電気信号に応じてボイスコイル１２２が巻装されたボビン１２１が振動し、ボビン１２１に接着固定され一体化された振動板１１０が振動し、音となって放出され、スピーカーとなる。
【００５８】
その際、ハウジング１２５の取付フランジ１２５ｂと振動板１１０とは、板バネ１２４を介して接着により固着されており、これにより振動付与部１２０が、振動板１１０に支持され、かつ、板バネ１２４にスリット１２４ａが設けられ、しかも、振動板１１０とハウジング１２５の取付フランジ１２５ｂとの間には隙間１２５ｃが確保されており、振動板１１０の振動を板バネ１２４の変形で許容するようになっている。
【００５９】
なお、板バネ１２４に替えて、発泡ゴムを素材とした弾性体を介して振動板１１０とハウジング１２５の取付フランジ１２５ｂを取り付けても良い。
【００６０】
以上の構成から明らかなように、第１実施形態にかかる薄型フラットスピーカー装置１は、振動板１１０の表裏はアルミニウムであるため、芯材１１１に独立気泡の低発泡ポリエチレンを用いても表裏方向の貫通孔がなく、平滑で美観に優れ、芯材１１１の独立気泡孔に空中の塵等が詰まって独立気泡孔を塞ぐとか汚すとかいうことも無いため、スピーカー性能の劣化を防ぎ、また、スピーカー表面に他の装飾を施す必要のないスピーカーを提供でき、かつ剛性が高い上、接着性が良く、振動付与部１２０と強固に接着取付けできるとともに、振動板１１０を他の部材へ取り付ける際、あるいは振動板１１０にフレーム等他の部材を取付ける際、容易に接着取付けでき、組付けの容易なスピーカーを提供できる。また、芯材１１１は独立気泡の低発泡ポリエチレンであるため、独立の気泡孔を有し、低密度で疎となっており、軽量で剛性も高い上、表裏のアルミニウムの波打ちを抑えフラットで滑らかな表面を形成している。したがって、振動板１１０全体としては、密度が低く、軽量かつ、曲げ、剛性が高い構造体で、表裏方向の貫通孔がないという機械的性質を有しているので高性能となる。
【００６１】
また、振動板１１０にアルミニウムと低発泡ポリエチレンの積層複合板を使用しているので、建築物の外壁、内壁、天井間仕切り、ドアや看板、あるいは貨物自動車の保冷荷室、ゲート、ウイング等巾広くまた、数多く使われている材料であり、材料を容易に得ることができ、安価である。
【００６２】
続いて、本発明の第２実施形態にかかる薄型フラットスピーカー装置２について説明する。
【００６３】
第２実施形態に関する薄型フラットスピーカー装置２は、図３に示すように、独立気泡の低発泡ポリエチレンを芯材２１１とし、該芯材２１１の表裏に、ステンレススチールの平滑で極く薄い板状の面材２１２，２１３を接着剤により貼合せた（接合した）サンドイッチ構造の総厚が１．２ｍｍ〜４．０ｍｍのステンレススチールと独立気泡の低発泡ポリエチレンの積層複合板を振動板２１０とし、該振動板２１０の一側に、該振動板２１０に音響電気信号に応じて振動を与える振動付与部２２０を両面接着テープ等の接着材により接着することにより直接固着した構成を有している。
【００６４】
振動板２１０については、図４に示すように三共ユナイト工業株式会社製の一側からステンレススチール、ポリエチレン、ステンレススチールのステンレススチールと樹脂の積層複合板であるサスライト（登録商標）のうち、接着剤を含みステンレススチール、ポリエチレン、ステンレススチールを合わせた総厚が１．２ｍｍ、１．５ｍｍ、２．０ｍｍ、３．０ｍｍ、４．０ｍｍのものを用いている。
【００６５】
このサスライト（登録商標）は、独立気泡孔を有する低発泡ポリエチレンを芯材２１１とし、該芯材２１１の表裏を、高強度を保つステンレススチール製の金属薄板の面材２１２，２１３で挟み込んで接着したサンドイッチ構造（積層複合構造）を備えることにより、高い剛性を有している。なお、図４に示す２１４，２１５は芯材２１１と表裏のステンレススチールの面材２１２，２１３とを接着している接着層である。また、芯材２１１に独立気泡孔を有する低発泡ポリエチレンを用いており、軽量である。（具体的に例示すると後述のように、比重１．０３から１．９５である。）
また、独立気泡低発泡ポリエチレンを芯材２１１にし、表裏をステンレススチール製金属薄板の面材２１２，２１３で挟み込んで接着したサンドイッチ構造により、金属薄板に発生しがちな波打ちを抑え、かつ、芯材２１１のポリエチレンが低発泡、独立気泡のため、フラットで滑らかな（平滑性を備えた）表面を与えている。
【００６６】
なお、表裏が耐食性に優れたステンレススチールの面材２１２，２１３であるのでそのまま用いても良いが、その表面に美観及び反射調整のための塗装を施しても良い。図４においては、表面に塗装を施していないものを示している。なお、サスライト（登録商標）に関する総厚、比重についての関係を例示すると以下の通りである。
【００６７】
【表２】

そして、本発明の第２実施形態にかかる薄型フラットスピーカー装置２の振動板２１０も、前記本発明の第１実施形態にかかる薄型フラットスピーカー装置１の振動板１１０と同様に公知の曲げ波動理論に基づいて出力再生を行うパネル型スピーカー装置を基本構成としているものである。
【００６８】
一方、本発明の第２実施形態にかかる薄型フラットスピーカー装置２の振動付与部２２０も公知の駆動装置（ドライバーユニット）を使用している。
【００６９】
具体的には、本発明の第２実施形態にかかる振動付与部２２０は、特開２０００−２５３４９２号公報「圧電振動体を用いたスピーカー」や、特開２００１−３２０７９８号公報「音響装置用圧電振動板」に記載されたスピーカーと同様に圧電効果という現象を利用した公知のドライバーユニットを使用している。
【００７０】
本発明の第２実施形態にかかる振動付与部２２０は、圧電効果という現象を利用した振動付与部で、２枚のセラミックスを使用している。この２枚のセラミックスは、圧電効果という性質を持っている。なお、これを圧電セラミックスといい、圧電効果を有する物質を圧電体と呼ぶ。圧電体は、その結晶に電気を与えると力や歪み（伸び縮み）が発生する。即ち、逆圧電効果を持っている。
【００７１】
そして、ＣＤプレーヤー、ＭＤプレーヤー等の出力端子から出力される音響電気信号をアンプで増幅して圧電セラミックスに加えることにより、圧電体が音響電気信号に応じた伸び縮みを繰り返す。
【００７２】
なお、振動付与部２２０の具体的構造は、圧電体である２枚のセラミックス２２１，２２２で真鍮電極板２２３を挟み込むように接着した構造になっている。そして、２枚のセラミックス２２１，２２２は、極性が反対（一方が伸びれば他方は縮む）になるように配線しており、真鍮電極板２２３は、音響電気信号の大小に応じて弓形に変形し、全体が振動する。そして、この振動が振動板２１０に伝わり、音となって放出され、スピーカーとなる。また、２２４は、振動板２１０に振動付与部２２０を支持固定し、かつ振動を伝えるため振動付与部２２０を振動板２１０に接着固定する振動付与部２２０の振動伝達部である。また、２２５は、振動を増幅、調整するため真鍮電極板２２３の外周に接着固定した重りのダンパウェイトである。そして、２３１は図外のアンプに接続するプラグであり、２３２はプラグ２３１とセラミックス２２１，２２２、真鍮電極板２２３をつなぐ配線である。
【００７３】
なお、上述の実施形態とは異なり、第１実施形態の振動板１１０に第２実施形態の振動付与部２２０を設けた薄型フラットスピーカー装置としても良く、第２実施形態の振動板２１０に第１実施形態の振動付与部１２０を設けた薄型フラットスピーカー装置としても良い。
【００７４】
続いて、本発明の第３実施形態にかかる掲示板３について説明する。この掲示板３は掲示物の裏面側に第１実施形態又は第２実施形態に使用した振動板１１０又は２１０を設けたものである。
【００７５】
具体的には、図５に示すように、薄型フラットスピーカー装置１の振動板（裏面板）１１０と、当該振動板１１０と所定間隔隔てて対向配置されかつ透光性を有した掲示部３１０と、振動板１１０と掲示部３１０との間に介装された蛍光灯３２０と、これらを固定するフレーム３３０を備えている。
【００７６】
振動板１１０は、前記第１実施形態の薄型フラットスピーカー装置１に用いられる振動板１１０と同一構造、すなわち独立気泡の低発泡ポリエチレンの芯材１１１をアルミニウムの面材１１２，１１３で挟んだサンドイッチ構造を有している。尚、振動板１１０の中央より多少ずらした位置に前記第１実施形態の薄型フラットスピーカー装置１の振動付与部１２０が接着固定され、振動板１１０の適所位置には音響用アンプ１３０と蛍光灯３２０のノイズをとるノイズキャンセラー３２２が装着されている。
【００７７】
また、掲示板３内の配線や、外部音響機器と接続するジャック等は図示省略してある。
【００７８】
そして、図６に示すように、掲示部３１０は写真等からなる光透過型掲示パネル３１３と、掲示パネル３１３をサンドイッチ状に挟み込む掲示パネル保護用の透明性アクリル板からなる支持パネル３１１，３１２からなる。また、掲示部３１０と蛍光灯３２０の間には光拡散用の半透明光反射型アクリル板３２１が介装されている。
【００７９】
そして、これらの構成要素は、図７、図８に示すように、掲示板周囲に断面己型の支持枠３３１と、断面Ｕ型のカバー枠３３２とから形成され、全体としての断面がＥ型に形成されたフレーム３３０によって所定の相対的位置関係を保ちながら固定されている。そして、支持枠３３１は、掲示板周囲の全周すなわち、四辺が断面己型に形成されており、該支持枠３３１に挿入固定されるカバー枠３３２は、掲示板周囲の三辺が断面Ｕ型に形成され、他の一辺が前縁部板３３５のみの断面Ｉ型に形成され、該一辺の側縁部３３５ａが開放された形状に成されている。
【００８０】
前記断面己型の支持枠３１３の己型断面の前側端３１３ａによって形成される部分断面Ｕ型のカバー枠挿入溝３１３ｂに、前記断面Ｕ型のカバー枠３３２の折り返し重合された後縁部３３２ａが挿入されて固定され、カバー枠挿入溝３３２ｂの幅と後縁部３３２ａの厚さはほぼ同じ寸法に形成され、後縁部３３２ａがカバー枠挿入溝３３２ｂに圧入される。そして、支持パネル３１１、掲示パネル３１３、支持パネル３１２は、断面Ｕ字型のカバー枠３３２と断面己型の支持枠３３１とによって形成される掲示パネル挿入溝３３２ｃに挿入固定される。
【００８１】
さらに、掲示板周囲の残りの一辺には、図８に示すように、フレーム３３０に取り付けられたヒンジ３３３を介して開閉可能なリッド３３４が備わっている。リッド３３４はヒンジ３３３に備わったスプリング３３３ａによって常に閉止方向に付勢され、掲示パネル３１３の交換時のみ開けるようになっている。
【００８２】
なお、掲示パネル３１３は、リッド３３４を開いた状態で現れる前記掲示パネル挿入溝３３２ｃに掲示パネル３１３を挟み込んだ支持パネル３１１，３１２をスライドさせながら挿入することで掲示板３に挿入できる。
【００８３】
組み付け方法をより詳細に説明すると、図６、図７、図８に示すように、支持枠３３１のカバー枠挿入溝３３２ｂに対し、カバー枠３３２の後端部３３２ａを挿入するが、その際に該カバー枠３３２の前記開放された側縁部３３５ａを支持枠３３１のリッド３３４と反対側から挿入（圧入）して取り付ける。
【００８４】
そして、図８に示すように、支持枠３３１の側方にヒンジ３３３を介して取り付けたリッド３３４を、スプリング力（リッドを閉じる方向に作用する付勢力）に抗して開き、リッド３３４側の側面からアクリル板の支持パネル３１１，３１２にはさみ込まれた光透過型の掲示パネル３１３を挿入する。
【００８５】
掲示パネル３１３の大きさが、Ａ４版以上の比較的大きな（例えばＡ１版、Ａ０版）ものの場合、振動板１１０はフレーム３３０に接着材（剤）、ビス、リベット等で直接固定することで十分な音圧が得られる。
【００８６】
一方、掲示パネル３１３の大きさがＢ５版、Ａ５版等Ａ４版より小さい場合には、振動板１１０とフレーム３３０との間に弾性体を介して取り付けることによって、振動板１１０の周囲を強固に固めないようにする。振動板１１０の剛性は必要であるが、必要以上に剛性を高くすると振動が抑えられるため、振動板１１０が小さい場合には、フレーム３３０と直接、固定することで剛性を必要以上に高くしてしまうのを防ぐ。
【００８７】
なお、支持パネル３１１，３１２、掲示パネル３１３の挿入口は上部または下部でも良いが、下部とした場合はリッドを係合保持する係合具を設ける。
【００８８】
以上の構成を有することで、かかる掲示板３には、蛍光灯３２０側に、振動板１１０のアルミニウムの面材１１３が面しているため蛍光灯３２０の光をアルミニウムの面材１１３が反射し、かつ、蛍光灯３２０の前には光拡散用の半透明光反射型アクリル板３２１が設けられているため掲示部３１０全体にフラットで均一な間接光が照射され、掲示部３１０の裏面から透過した該間接光により掲示部３１０の写真等の掲示パネル３１３が全体的に浮かび上がるので見る者に美観を起させることができる。また、掲示板３の外部には、照明用ライト等の突起物がないので外観がシンプルであるとともに取り扱い性に優れる。さらには、本発明の第１実施形態にかかる薄型フラットスピーカー装置１の振動板１１０を掲示板３の裏面板に使用しているので、音は掲示板３の裏面から放音され、振動板１１０の放音面に掲示パネル３１３が無いため良い音を発生することができ、宣伝効果を高めることができる。その上、本発明の第１実施形態にかかる薄型フラットスピーカー装置１は軽量かつ強固で耐塵性に優れるので、かかる薄型フラットスピーカー装置１を裏面板に使用した掲示板３は、耐候性を要求される屋外環境での使用に優れるとともに携帯性に適し、所望の場所に容易に運搬して設置することができる。
【００８９】
なお、上述の実施形態とは異なり、裏面板に第２実施形態にかかる薄型フラットスピーカー装置２を用いても同等の効果が期待できる。
【００９０】
続いて、本発明の第４実施形態にかかるケース４について説明する。このケース４は、アルミニウムでできたケース４の少なくとも一部に第１実施形態にかかる薄型フラットスピーカー装置１を利用したものである。
【００９１】
すなわち、ケース４は、ノート型パソコンやＡＣアダプターなどのノート型パソコンの周辺機器あるいは、エステ用具一式などを納めて運ぶのに用いるアルミニウム製のケースあるいはトランクの一部を薄型フラットスピーカー装置１で構成したものである。
【００９２】
具体的には、ケース４は、図９に示すように、ケース本体４１０と、リッド４２０と、これらを開閉可能に連結するヒンジ４３０（図１０）と、ケース本体４１０に、起倒可能に回動軸４１０ａを介して固定された取っ手４４０と、ケース本体４１０にリッド４２０をロックする掛止具４５０とを備え、リッド４２０の外板４２３の前面板４２３ａが第１実施形態にかかる薄型フラットスピーカー装置１の振動板１１０から構成されている。また、リッド４２０の外板４２３の側面板４２３ｂは、振動板１１０によって構成されている前面板４２３ａを折り曲げ延設させて形成されている。なお、薄型フラットスピーカー装置１の振動板１１０から構成されているリッド４２０の前記前面板４２３ａの内側には音響用アンプ１３０が装着されている。また、１２０は振動付与部であり、４２４は外板４２３、４２５の縁を補強するための縁補強枠であり、４２６は外板４２３，４２５のコーナを補強するコーナ補強ピースである。
【００９３】
そして、リッド４２０の内側には、図１０に示すように、リッド内底板４２１が備わっている（図中、二点鎖線で図示）。また、振動板１１０から構成されている外板４２３と、リッド内底板４２１との間には、前記音響用アンプ１３０や振動付与部１２０が収納されたリッド内空所４２７が存する。また、リッド内底板４２１より内側の周囲の壁には、収納物保護用のウレタン４２２が貼られ、ケース本体４１０の内側には、図１１に示すように、収納物の外形に合わせて形成した収納物保護用の収納凹部４１２ａが形成されたウレタン４１２がはめ込まれている。なお、図１１では、外板４２３，４２５の縁補強枠４２４、コーナー補強ピース４２６、掛止具４５０の図示を省略してある。
【００９４】
さらにケース４は、リッド４２０の外板４２３も、ケース本体４１０の外板４２５も第１実施形態にかかる薄型フラットスピーカー装置１の振動板１１０と同じく独立気泡の低発泡ポリエチレンでできた芯材と該芯材の表裏にアルミニウムの面材を接合したアルミニウムと低発泡ポリエチレンの積層複合板によって形成されている。そして、そのリッド４２０の外板４２３の前面板４２３ａを振動板１１０とした第１実施形態にかかる薄型フラットスピーカー装置としたものである。こうして、アルミニウムと低発泡ポリエチレンの積層複合板でできたケースの少なくとも一部を第１実施形態の薄型フラットスピーカー装置１で構成しており、スピーカー付きのケースながら軽量かつ強固で耐塵性に優れるので、耐候性を要求される屋外環境での宣伝活動に使用できるとともに携帯性に適し、いかなる場所にも持っていくことができる。
【００９５】
なお、使用形態の一例としては、パソコンからの音響信号を受けてパソコン収納ケースから音楽や音声を流すことも考えられる。あるいは、エステやメークの実演時に解説や宣伝を収録した音声再生機器とエステ用具を収納していたエステ用具収納ケースとを接続し、宣伝広告用の音声を流すようにしても良い。
【００９６】
なお、リッド４２０の外板４２３の前面板４２３ａを振動板１１０とした場合は、ケースのリッド４２０を閉じた状態でスピーカーとして用いても良いし、開いた状態でスピーカーとして用いても良い。
【００９７】
また、図１０の二点鎖線で示すように、リッド内底板４２１を振動板１１０として使用することもできる。この場合は、リッド内底板４２１を第１実施形態にかかる薄型スピーカー装置１の振動板１１０で構成し、該リッド内底板４２１の外板４２３側に音響用アンプ１３０を装着する。なお、図１０に二点鎖線で示した符号１２０が指すものは薄型スピーカー装置１の振動付与部である。なお、リッド内底板４２１を振動板１１０とした場合は、ケースのリッド４２０を開けた状態でスピーカーとして用いる。
【００９８】
また、振動板１１０を外板４２３とリッド内底板４２１との両側に設けても良い。この場合、振動付与部１２０の一方が外板４２３を形成している振動板１１０に取り付けられ、他方がリッド内底板４２１を形成している振動板１１０に取り付けられるようになる。このようにしても、振動付与部１２０と音響用アンプ１３０をそれぞれ適所に配置することで互いの干渉を防止することができる。
【００９９】
なお、上述の実施形態とは異なり、外板４２３又はリッド内底板４２１に第２実施形態にかかる薄型フラットスピーカー装置２を用いた場合、軽量化の点では上述のケースに対して多少劣るが、強度の点で優れたケースとすることができる。この場合、外板４２３は振動板２１０が、リッド内底板４２１は振動板２１０がそれぞれ形成することになる。
【０１００】
続いて、本発明の第５実施形態にかかる自立型フラットスピーカー装置５について説明する。この自立型フラットスピーカー装置５は、床または、ラック上、卓上に置く薄型フラットスピーカー装置である。
【０１０１】
自立型フラットスピーカー装置５は、図１２に示すように、第１実施形態の薄型フラットスピーカー装置１と、薄型フラットスピーカー装置１の周囲に直接取り付けられたフレーム５１０と、フレーム５１０の下部に連結された支持台５２０とを備えている。また、図１３の断面図に示すように、支持台５２０にはアンプ５３０が備わり、ジャック５３１及び接続コード５４１を介してＣＤやＭＤなどの外部音響機器５４０と接続可能になっている。また、１２０は、振動付与部であり、１２０ａは、振動付与部１２０とアンプ５３０を結ぶ配線である。
【０１０２】
そして、振動板１１０の大きさが、Ａ４版以上の比較的大きな放音面（振動板）となる、例えばＡ４版、Ａ４版を長手方向に２枚つづけた大きさ、Ａ３版、Ａ３版を長手方向に２枚つづけた大きさ、Ａ２版、Ａ１版、Ａ０版では、図１４のフレーム断面図に示すように、振動板１１０の周囲にフレーム５１０を接着あるいは圧入して固定する。このフレーム５１０は、アルミニウムの押出材を用い枠状に接合し、組立てているが、樹脂を用いても良い。
【０１０３】
なお、Ａ４版未満の大きさや縦に細長いあるいは、横に細長い放音面（振動板）の場合は、振動板１１０とフレーム５１０の間に、弾性体を介して取り付ける。（図１８に示す他の実施形態のフレーム断面図参照）
一方、縦または横に細長い（例えば、Ａ５版を長手方向に２枚つづけた大きさ）ものでは、長手方向端は振動板１１０とフレーム５１０を接着等で直接固定し、短手方向端は、振動板１１０とフレーム５１０との間に弾性体を介して取り付ける。
【０１０４】
なお、本実施形態にかかる自立型フラットスピーカー装置の場合、支持台５２０と振動板１１０、フレーム５１０とを分割し、荷姿をコンパクトにできるように、支持台５２０と振動板１１０、フレーム５１０との間に支持接続部材５２１を設けている。そして、フレーム５１０の下部、支持接続部材５２１、支持台５２０には、凹部、凸部を設け、挿入固定することで、該部分で脱着可能になっている。
【０１０５】
なお、支持接続部材５２１の長さを変えることで、この装置の床面又は卓上からの高さを可変にするようにしても良い。
【０１０６】
また、上述の実施形態とは異なり、第２実施形態にかかる薄型フラットスピーカー装置２にフレーム５１０と支持台５２０あるいは、支持接続部材５２１を取り付けても同等の効果が期待できる。
【０１０７】
続いて、図１５に示す本発明の第６実施形態にかかるディスプレイ装置６及び第７実施形態にかかる壁取付型フラットスピーカー装置７について説明する。なお、かかるディスプレイ装置６や壁取付型フラットスピーカー装置７は、ホームシアターやオーディオルームに用いるものである。
【０１０８】
この背景としては、ホームシアターでは、プラズマディスプレイや液晶ディスプレイのような、薄型フラットなディスプレイ装置の需要が省スペース映像機器として本格化しているとともに、サラウンドの更なる多チャンネル化で場所をとらない音の良いスピーカーが求められていることがあげられる。
【０１０９】
その要望に応えるため、本発明にかかる薄型フラットスピーカー装置１を利用して、ディスプレイ側面にスピーカー部を一体に設けたディスプレイ装置６と部屋の壁に設けた壁取付型フラットスピーカー装置７を提供する。
【０１１０】
まず最初に、第６実施形態である、薄型ディスプレイに薄型フラットスピーカー装置１を備えたディスプレイ装置６について説明する。
【０１１１】
このディスプレイ装置６は、図１６の断面図に示すように、薄型ディスプレイ６１０の両側面に、ディスプレイ６１０に嵌合するように形成したフレーム６２１、及びスピーカーの振動をディスプレイ６１０に伝えないようにした弾性体６３０を介して第１実施形態の薄型フラットスピーカー装置１の振動板１１０を取り付けることによって、第１実施形態の薄型フラットスピーカー装置１をディスプレイ６１０に取り付けたものである。
【０１１２】
なお、フレーム６２１は、振動板１１０の端末カバーを兼ねている。
【０１１３】
また、薄型ディスプレイ６１０の両側面に対応する以外の薄型フラットスピーカー装置１の振動板１１０の周囲は、図１６及び図１７のフレーム断面図に示すように、弾性体を介さずに振動板１１０の周囲にフレーム６２２を接着あるいは圧入して固定している。
【０１１４】
なお、この薄型ディスプレイの両側面に対応する以外の薄型フラットスピーカー装置１の振動板１１０の周囲も、図１８に示すように、弾性体６２３を介してフレーム６２４で固定しても良い。また、１２０は振動付与部で、６４０はディスプレイ支持台、６４１は支持脚である。
【０１１５】
また、上述の実施形態とは異なり、ディスプレイ装置６に使用する薄型フラットスピーカー装置に第２実施形態にかかる薄型フラットスピーカー装置２を用いても良い。
【０１１６】
続いて、壁に取り付けることのできる第７実施形態の壁取付型フラットスピーカー装置（再び図１５参照）について説明する。
【０１１７】
本実施形態にかかる壁取付型フラットスピーカー装置７は、図１９及び図２０の断面図に示すように、第１実施形態にかかる薄型フラットスピーカー装置１と、薄型フラットスピーカー装置１の振動板１１０の周囲に取り付けられたフレーム７１０とを備え、フレーム７１０は薄型フラットスピーカー装置１の振動板１１０の端部を挟持する挟持部７１１と挟持部７１１から延設し、壁に重合して壁に取り付けられる壁取付用延在部７１２とを有し、ユ型断面に形成されている。なお、挟持部７１１と薄型フラットスピーカー装置１の振動板１１０との間には振動吸収用弾性体７１３が介装されている。また、壁取付用延在部７１２にも振動吸収用弾性体７１４が固着されており、この振動吸収用弾性体７１３，７１４を介して薄型フラットスピーカー装置１が壁に取り付けられるようになっている。
【０１１８】
なお、１２０は振動付与部である。
【０１１９】
そして、これらの振動吸収用弾性体７１３，７１４によって薄型フラットスピーカー装置１が効率良く振動して良音を発するとともに余分な振動が壁に伝わらないようにする。
【０１２０】
なお、図１９及び図２０の断面図は音響特性（音場）と防音の機能をもった部屋の壁７２０に設けた例である。具体的には、音場パネル７２１および、遮音層７２２、振動カット層７２３、吸音層７２４、振動カット層７２５、遮音層７２６からなる積層した壁７２０に第１実施形態にかかる薄型フラットスピーカー装置１を取り付けたものである。なお、７３０は部屋の壁７２０から薄型フラットスピーカー装置１が部屋内に突出しないようにするため、壁７２０に設けられた凹所であり、該凹所７３０の空間に嵌め込んで薄型フラットスピーカー装置を取り付けたものである。
【０１２１】
また、本実施形態にかかる壁取付型フラットスピーカー装置７は、ユ型断面をしたフレーム７１０の壁取付用延在部７１２を介して薄型フラットスピーカー装置１を壁７２０に設けた凹所７３０も空間に嵌め込み、壁７２０から突出しないように取り付けることができるので、音響特性の点だけでなく美観の点からも優れている。
【０１２２】
また、薄型フラットスピーカー装置１の振動板１１０の周囲に取り付けられたフレーム７１０は、該フレーム７１０の挟持部７１１と振動板１１０の周囲との間に振動吸収用弾性体７１３を介装せずに、接着あるいは圧入により直接固定しても良い。
【０１２３】
なお、上述の実施形態とは異なり、第２実施形態にかかる薄型フラットスピーカー装置２の振動板２１０にフレーム７１０を取り付けた壁取付型フラットスピーカー装置としても良い。
【０１２４】
続いて、本発明の第８実施形態にかかるケース８１０について説明する。なお、図面に関しては、図２１、図２２、図２３が第８実施形態のケース８１０に対応している。
【０１２５】
本発明の第８実施形態にかかるケース８１０は、前述の第４実施形態にかかるケース４と同様にノート型パソコンやＡＣアダプタなどのノート型パソコンの周辺機器あるいは、エステ用具一式などを収めて運ぶケースの他、必要に応じて移動先で音楽を聴くあるいは流すことが手軽にできるようにＣＤプレイヤーや音楽ＣＤなどの音楽を聴くあるいは流すための器材一式を納めて運ぶケースに薄型フラットスピーカ装置１を内蔵して構成されたものである。
【０１２６】
以下、ケース８１０の具体的構造について説明する。なお、第１実施形態にかかる薄型フラットスピーカ装置１の構成と同じものは、同符合を付して説明を省略する。
【０１２７】
ケース８１０は、図２１に示すようにアルミニウム等でできたケース８１０の外表面８１１を形成する外板の少なくとも一部に、ケース８１０内にて発生させた音波を通す透孔８１２が明けられ、当該透孔８１２の内側に対面して第１実施形態にかかる薄型フラットスピーカ装置１（図２２参照）を設けたものである。なお、薄型フラットスピーカ装置１はケース８１０より着脱可能に取付けられている。
【０１２８】
また、ケース８１０は、図２１及び図２２に示すように、ケース本体８１３と、リッド８１４と、これらを開閉可能に連絡するヒンジ８１５と、ケース本体８１３に起倒可能に回動軸８１６を介して固定された取っ手８１７と、ケース本体８１３にリッド８１４をロックする掛け具８１８とを備えている。
【０１２９】
なお。８２０はケース本体８１３の外板、８２１はリッド８１４の外板である。
【０１３０】
リッド８１４の外表面を形成する外板８２１の一角には音波を通すための透孔８１２が外板８２１を貫通して多数明けられている。
【０１３１】
この多数明けられた透孔８１２の内側、すなわちケース８１０の中には、図２２に示すように、多数の透孔８１２に対面して第１実施形態にかかる薄型フラットスピーカ装置１の振動板１１０が配置されている。
【０１３２】
この振動板１１０の内側すなわち裏面には、振動付与部１２０が接合され固定されている。
【０１３３】
そして、リッド８１４の内側すなわち裏面には、支持基板８２２がビスによりネジ止めされ着脱可能に取付けられている。
【０１３４】
支持基板８２２には、スピーカ電源としての電池８２４を収納する電池ケース８３１、音響用アンプ８３２、図外のＣＤプレイヤー等からのプラグを差し込むためのジャック８２９、外部からのＡＣ（交流）１００Ｖ電源と接続するためのＡＣ電源入力端子８３３、外部マイクと接続する外部マイク入力端子８３４、音量調節部８２５、音量調節つまみ８２６、パイロットランプ８２７、及び振動板１１０（図２２参照）が取付けられている。
【０１３５】
この振動板１１０は、支持基板８２２に振動板支持ブラケット８３５、支持弾性体８３６を介して取付けられている。
【０１３６】
また、支持基板８２２の前記多数明けられた透孔８１２に対応した位置には放音孔８４７が明けられている。そして、この放音孔８４７及び透孔８１２を介してリッド８１４の外へ音波が出て行く。なお、８２２ｃは支持基板８２２の放音孔８４７の端縁を示している。
【０１３７】
また、スピーカのＯＮ・ＯＦＦスイッチを兼ねた音量調節つまみ８２６がリッド８１４の外に突出して取付けられ、この音量調節つまみ８２６を有する音量調節部８２５はリッド８１４の内側に臨んで固定されており、音響用アンプ８３２との間を配線によって接続されている。この音量調節つまみ８２６からは音量調節軸８２６ａが突出し、共に一体で回動するようになっている。
【０１３８】
また、パイロットランプ８２７が、音量調節つまみ８２６をまわしてスピーカをＯＮにすると点灯し、ＯＦＦにすると消灯するようになっている。なお、音量調節つまみ８２６、パイロットランプ８２７、ＡＣ電源入力端子８３３、外部マイク入力端子８３４は支持基板８２２に固定された取付けベース８３８に取付けられている。取付けベース８３８のベース上下は内に外板８２１が嵌入された断面コ字状の外板端８３８ａと接しており、この外板端８３８ａは固定ピース８３８ｂを介して縁補強枠８４０、リッド側開口縁補強枠８４２にリベットにより取付けられている。
【０１３９】
また、取付けベース８３８の左右端は縁補強枠８４０、リッド側開口縁補強枠８４２と接している。
【０１４０】
なお、８２８は配線を部分的に示したものであり、８４６は、支持基板８２２とリッド８１４の外板８２１の内側の隙を塞ぐ樹脂発泡体のスペーサであり、８２６ａは音量調節軸である（図２２参照）。
【０１４１】
前記振動付与部１２０の内側には、振動付与部１２０、振動板１１０、音響用アンプ８３２、電池８２４、配線８２８等に、ケース８１０内に収納した収納物が当たるのを防ぐカバー８１９がビス孔８１９ａ（図２３参照）を介してビスその他の固定部品で前記支持基板８２２へ着脱可能に取付けられている。また、音響用アンプ８３２からは電線１２９ａが導出している。カバー８１９は端面視Ｌ字型に形成され、カバー８１９の一部には支持基板８２２に取付けた際に前記電池８２４に対応する位置において電池８２４を押え、かつクッションの役目もするウレタン等発泡樹脂からなる押え部材８２３が接着されている。
【０１４２】
なお、カバー８１９を外すと振動板１１０、振動付与部１２０等からなるスピーカ、電池８２４、音響用アンプ８３２等が露出し、これらの点検ができるとともに、電池８２４の交換をすることが可能となる。
【０１４３】
一方、８４０は外板８２０，８２１の縁を接合かつ補強する縁補強枠であり、８４１，８４２はリッド８１４をケース本体８１３に閉じたときに互いに当接して嵌り合い密着するように一方に凸部、他方に凹溝８４２ａ（図２２参照）が形成されたケース本体側開口縁枠とリッド側開口縁枠をそれぞれなしている。そして、両開口縁補強枠８４１，８４２はケース本体８１３、リッド８１４の開口縁の補強枠も兼ねている。
【０１４４】
また、８４３は、外板８２０，８２１、縁補強枠８４０、両開口縁補強枠８４１，８４２のコーナを接続かつ補強するコーナ接続ピースである。また、８４９はケース８１０の下端の四隅に設けられた脚である。
【０１４５】
そして、ケース本体８１３およびリッド８１４の底および周囲の内壁には、収納物を保護するためのウレタン等の発泡樹脂またはフェルトあるいは不織布等の内張りが張られている。
【０１４６】
ヒンジ８１５にはメール、フィメールの対向する面であるヒンジストッパ面８１５ａ，８１５ｂが形成されている。互いに対向するヒンジストッパ面８１５ａ，８１５ｂは、リッド閉時には離れており、リッド開時には当接してストッパとなり、リッド８１４を開いた状態で当該リッド８１４をケース本体８１３に支持するようになっている。なお、リッド８１４を開いた状態では、リッド開度が９０°を若干超えた位置に留まるようになっている。
【０１４７】
一方、外板８２１のケース内部側には、図示しない一対の断面ユ型レールがそれぞれ透孔８１２を一部挟み込むような位置に対向配置され、当該レールにガイドされるシール板８３７がスライド可能に取付けられ、透孔８１２をケース内側から必要に応じて閉塞するようになっている。なお、図２２に示す空間ＡＰはシール板８３７が出入りするガイド空間である。そして、シール板８３７にはこれを容易にスライドさせるためのハンドル８３７ａが取付けられている。このシール板８３７によってスピーカ未使用時に透孔８１２を塞ぎ、雨水、ほこり等の侵入を防ぐことができる。
【０１４８】
さらに、ケース８１０は、ケース本体８１３の外板８２０も、リッド８１４の外板８２１も第一実施形態にかかる薄型フラットスピーカ装置１の振動板１１０と同じく独立気泡の低発泡ポリエチレンでできた芯材１１１と該芯材１１１の表裏にアルミニウムの面材１１２，１１３を接合したアルミニウムと低発泡ポリエチレンの積層複合板によって形成されている。
【０１４９】
また、リッド８１４の外板８２１に音波を通す透孔８１２を設け、この透孔８１２に対面して振動板１１０が配されているため、リッド８１４を閉じた状態でも開けた状態でもスピーカとして用いることができる。
【０１５０】
また、後述するように支持基板８２２をリッド８１４から取外すことができる。
【０１５１】
以上の構成から明らかなように、第８実施形態にかかるケース８１０は、振動板１１０、振動付与部１２０等からなるスピーカ、音響用アンプ８３２、電池ケース８３１、及びジャック８２９が直接支持板８２２に、音量調節部８２５、音量調節つまみ８２６、パイロットランプ８２７、ＡＣ電源入力端子８３３、外部マイク入力端子８３４が取付けベース８３８を介して支持基板８２２に取付けられている。
【０１５２】
これにより、スピーカとスピーカを作動させるための構成要素の全てが支持基板８２２に取付けられていることになる。
【０１５３】
また、このうち、音量調節つまみ８２６、パイロットランプ８２７、ＡＣ電源入力端子８３３、外部マイク入力端子８３４は、リッド側壁外板から外部に突出（露出）し、ケース外から操作可能になっている。
【０１５４】
なお、ジャック８２９については、支持基板８２２の下側（下端）に設けられているが、このジャック８２９も上記同様、リッド側壁外板から外部に突出して設けても良いし、支持基板８２２の下端とリッド側壁外板から２箇所に突出して設けても良い。
【０１５５】
これら音量調節つまみ８２６、パイロットランプ８２７、ＡＣ電源入力端子８３３、外部マイク入力端子８３４を取付けた取付けベース８３８は、支持基板８２２の側面に固定されており、この取付けベース８３８は、リッド８１４の側壁外板８２１に明けられた取付けベース露出用開口穴８３９に嵌合されるようにのぞんでいる。
【０１５６】
この取付ベース露出用開口穴８３９は、前記のように左右の開口縁がリッド８１４の縁補強枠８４０とリッド側開口縁補強枠８４２で、上下の開口縁がリッド８１４の側壁外板を形成している外板８２１を嵌入された断面コ字状をした外板端８３８ａで囲まれて開口している。
【０１５７】
外板端８３８ａは、固定ピース８３８ｂを介してリッド８１４の縁補強枠８４０、リッド側開口縁補強枠８４２にリベット固定されている。
【０１５８】
一方、支持基板８２２は、リッド８１４の側壁外板８２１との間にビスによりネジ固定されている。この場合、リッド８１４の側壁外板８２１の外部から支持基板８２２に設けたネジ部へビスを締付けるようにしても良く、この逆に支持基板８２２側からリッド８１４の側壁外板８２１にビスを締付けるようにしても良い。
【０１５９】
そして、８２２ｂが支持基板８２２の側部に一体に形成された側壁外板固定部であり、リッド８１４の側壁外板８２１と当接し、ビスにより側壁外板８２１に固定される。
【０１６０】
このビスを外すことにより、支持基板８２２を外板８２１から離すことで、支持基板８２２に固定された取付けベース８３８及びこの取付ベース８３８に取付けられた音量調節つまみ８２６等がリッド８１４の側壁外板８２１より離脱可能となり、次に支持基板８２２をリッド８１４の内側へ横移動することで支持基板８２２に取付けられた全ての構成要素をリッド８１４の側壁外板８２１より外すことができる。
【０１６１】
一方、全ての構成要素が取付けられた支持基板８２２を取付けるときは、取付けベース露出用開口穴８３９に取付けベース８３８を挿入するように支持基板８２２を横移動し、取付けベース露出用開口穴８３９に取付けベース８３８を嵌合し、支持基板８２２の側壁外板固定部８２２ｂとリッド８１４の側壁外板８２１との間をビス止めする。
【０１６２】
支持基板８２２を外し、スピーカ、音量調節つまみ８２６等を取外した後は、取付けベース露出用開口穴８３９に合致した穴うめ用凸部を有する穴うめ板（図示せず）を、支持基板８２２を固定していたビスによりリッド８１４の側壁外板８２１に固定する。これにより、取付けベース８３８を取除いてできた開口部を塞ぎ、ケース８１０としてのみ使用することができる。
【０１６３】
すなわち、支持基板８２２に取付けられている振動板１１０、振動付与部１２０等からなるスピーカ、音響用アンプ８３２、電池ケース８３１、音量調節部８２５等をスピーカとして長期間使用しないときに取外して、ケースのみとして使用することで、ケースの収納空間を拡げて使える。また重量を軽くして使用することができる。
【０１６４】
また、上述したように振動板１１０とケース本体８１３、リッド８１４の外板８２０，８２１とも同材料（質）としているので、材料の種類を増やすことなく、材料の管理を容易にするとともに加工方法、加工装置を統一でき、安価に提供することができる。
【０１６５】
また、スピーカ装置を新しいものや異なる仕様、型式のものと容易に交換することができる。さらには、スピーカ等が故障したときやメンテナンスの際には、振動板１１０、振動付与部１２０等からなるスピーカ、音量調節つまみ８２６等を有する支持基板８２２ごと取外して新しいものと交換するとか、サービスステーションに送って点検、修理を受けることができる。
【０１６６】
また、支持基板８２２を取外して振動板１１０、振動付与部１２０等からなるスピーカを取外した場合においてケース８１０内への雨水等の浸入を嫌う際には、シール板８３７をスライドして透孔８１２を常時閉じておけば良い。
【０１６７】
以上の構成を有するケース８１０は、前述の第４実施形態にかかるケース４と同様に、パソコンからの音響信号を受けてパソコン収納ケースとして音楽や音声を流すことも考えられる。
【０１６８】
あるいは、エステやメークの実演時に解説や宣伝を収録した音声再生機器と接続してエステやメーク用具を収納していたエステ用具やメーク用具収納ケースとしてのケースから、解説や宣伝広告用の音声を流すようにしても良い。
【０１６９】
あるいは、ケースに収納して持ち込んだＣＤプレーヤーと接続し、例えばダンス練習場に借用した会場の一角に、あるいは会場の四隅に複数のケース８１０を置いて音楽を流すようにしても良い。
【０１７０】
なお、上述した第８実施形態にかかるケースの変形例として、前記透孔８１２から雨水等の混入を嫌う場合には、外板８２１側に透孔８１２を明ける代わりに前記のカバー８１９に透孔を明け、このカバー８１９に設けた透孔に対面して振動板１１０を配し、この振動板１１０の外側即ち、リッド８１４の外板８２１側に振動付与部１２０が接合され固定するようにする構造が考えられる。
【０１７１】
この場合は、スピーカの使用に際してリッド８１４を開けて用いる。
【０１７２】
また、音波を通す透孔を、リッド８１４の外板８２１に明けるとともに前記のカバー８１９に明け、振動板１１０からの音波をリッド８１４の外板８２１に空けた透孔８１２およびカバー８１９に明けた透孔から放出し、リッド８１４を明けた際には、リッド８１４の前面、後面の両方から音が流れるようにしても良い。
【０１７３】
さらに透孔８１２をリッド８１４の外板８２１の上部中央すなわち、リッド８１４を閉じたときの取っ手８１７の近傍に明け、振動板１１０、振動付与部１２０、音響用アンプ８３２、電池ケース８３１等を中央部に配してケース８１０に収納物が無くケース内部が空のときに取っ手８１７を中心にした左右の重量に片寄りがないようにし、持ち易くしても良い。
【０１７４】
なお、振動板等に第２実施形態にかかる薄型フラットスピーカ装置２を用い、ケース本体８１３の外板８２０、リッド８１４の外板８２１を第２実施形態にかかる薄型フラットスピーカ装置２の振動板２１０と同じ材料（質）のものを用いても良い。この場合、ケースの軽量化の点では、前述のケース８１０に対して多少劣るが、強度の点で優れたケースとすることができる。
【０１７５】
ケース８１０に化粧品を収納して化粧品セールスにケース８１０を用いる場合、化粧品が詰められた容器を収納、取出し容易な形状とし、容器を押える中蓋やバンドあるいは仕切を設ける等の他、ケース８１０のリッド８１４の外板８２０，８２１を形成している素材として独立気泡の低発泡ポリエチレンでできた芯材１１１と該芯材１１１の表裏に鏡面板あるいは鏡面仕上げしたアルミ薄板やステンレス薄板の面材１１２，１１３を接合した鏡面板あるいは鏡面仕上げの金属と低発泡ポリエチレンの積層複合板を用いて、リッド８１４の内外両表面あるいは内側表面を鏡として用いることができるように成しても良い。そして、内側表面のみ鏡として用いることができるように成した場合は、リッド８１４の外側表面に、各種の色のレザーあるいは布等を貼り、ケース８１０の外観はカラーレザーあるいは布貼りのケースとすることができる。
【０１７６】
また、ケース本体８１３とリッド８１４の全ての外板８２０，８２１を前記の積層複合板で形成し、ケース本体８１３とリッド８１４の全ての面を鏡として用いることを可能にした上で、ケース８１０の全ての面から選択した面を鏡とし、他の面に前述のようにレザーあるいは布等を貼ることで外板８２０，８２１を鏡として用いつつデザインの自由度を増すこともできる。そして、ケース８１０を化粧品収納ケースとして用い、セールス時のエステやメーク等の実演に際し、音声を流したり、解説や宣伝広告用の音声あるいはＢＧＭ等音楽を流したりすることに利用でき更に利便性を向上した化粧品セールス用ケース８１０とすることもできる。
【０１７７】
続いて、本発明の第９実施形態に係るケース８５０について説明する。なお、図面に関しては、図２４、図２５、図２６が第９実施形態に対応している。
【０１７８】
このケース８５０は、図２４に示すようにアルミニウム等でできたケース８５０の外表面８５１を形成する外板８２１の少なくとも一部に、ケース８５０内で発生させた音波を通す透孔８５２が明けられ、この透孔８５２の内側に対面して配置される音源部には、前述の第８実施形態の音源部である振動板１１０、振動付与部１２０に替えて、コーン型スピーカ装置８５３（図２６参照）を用いている。
【０１７９】
ケース８５０自体は十分な強度を保っている。これは、各縁補強枠と各外板とが互いにしっかりと結合しているためである。具体的には、縁補強枠８４０と外板８２１とがカシメ８４０ａによりしっかりと固定されている。すなわち、外板８２１は芯材１１１が樹脂で表裏がアルミ薄板１１２，１１３であり、縁補強枠８４０がアルミのため、縁補強枠８４０と外板８２１の結合部をケース内側からダイス等でプレスすると、この結合部がカシメられ、両者がしっかりと連結される。また、縁補強枠８４０は内側と外側で断面方向の長さが異なり、外側が内側より長いのでカシメ８４０ａが縁補強枠８４０の外側で覆われ、外板８２１のカシメによる歪が外側に及ばないとともにケース外部から見えず、ケースの外観を損なうことがない。なお、ケース本体側、リッド側の両開口縁補強枠８４１，８４２と外板８２０，８２１は、コーナーピースを介してリベット固定し、これらの間もしっかりと結合されている。
【０１８０】
透孔８５２はコーン型スピーカ装置８５３のコーン部と対応するように全体で円形状に穿設されている。また、音量調節つまみ８２６及びパイロットランプ８２７は第８実施形態と異なり取っ手８１７側の外板８２１に備わっている。そして、側方の外板８２１には外部マイク入力端子８３４及びＡＣ電源入力端子（ＡＣ１００Ｖ用の電源端子）８３３が備わっている。
【０１８１】
また、ヒンジ８１５には、第８実施形態と同様にヒンジ８１５のメール、フィメールの対向する面であるヒンジストッパ面８１５ａ，８１５ｂが形成され、リッド８１４を開いた状態で角度が９０°を若干超えた位置を保つようになっている。
【０１８２】
なお、第９実施形態の場合、コーン型スピーカ装置８５３、音響用アンプ８３２、電池ケース８３１、音量調節部８２５、パイロットランプ８２７が支持基板８２２に直接取付けられている。一方、ＡＣ電源入力端子８３３、外部マイク入力端子８３４、コネクタを形成しているソケット（図外）と接続されるピン端子コネクタ８２８ａはリッド８１４の側壁外板８２１に取付けられている。
【０１８３】
また、ＡＣ電源入力端子８３３、外部マイク入力端子８３４、ピン端子コネクタ８２８ａに至るまでの配線８５５がリッド８１４の外板８２１に固定されている保護用カバー８２８ｂの内側に設けられている。
【０１８４】
この保護用カバー８２８ｂは、後述するコーン型スピーカ装置８５３、音響アンプ８３２、電池ケース８３１、音量調節部８２５、パイロットランプ８２７、ジャック８２９が取付けられている支持基板８２２をケース８５０から取外した際にケース８５０のリッド８１４に残っているＡＣ電源入力端子８３３、外部マイク入力端子８３４、ピン端子コネクタ８２８ａ及びこれら端子からピン端子コネクタ８２８ａに至るまでの配線８５５がケース８５０内に収容されるものと当接しないように保護するためのものである。
【０１８５】
音量調節つまみ８２６は、音量調節部８２５から出ている音量調節軸（音量調節つまみ８２６の軸）８２６ａに対し、抜き差し可能に設けられている。また、音量調節軸８２６ａは、リッド８１４の外板８２１より突出しており、音量調節軸８２６ａに差し込み固定される音量調節つまみ８２６がリッド８１４の外板８２１より外に露出している。なお、音量調節軸８２６ａの周方向及び音量調節つまみ８２６の周方向に４つの凸条部８２６ｂ及びこれに対応するキー溝状スリットを等間隔に設けて両者が嵌合している。これによって、音量調節つまみ８２６と音量調節軸８２６ａとが着脱自在かつ両者一体に回動するようになっている。しかしながら、この凸条部８２６ｂとキー溝状スリットの代わりに音量調節軸８２６ａには、外周全体に亘って軸長手方向に沿って多数の山型突起が一定間隔で形成され、音量調節つまみ８２６には全内周に亘ってこの突起に対応するスリットが形成され、両者が嵌合し、両者一体に回動するようにしても良い。
【０１８６】
なお、音量調節軸８２６ａを有する音量調節部８２５、パイロットランプ８２７は支持基板８２２に取付けられ支持基板８２２を外すとともに外れるようになっている。
【０１８７】
一方、パイロットランプ８２７は、リッド８１４の外板８２１に明けられた穴よりリッド８１４の外板８２１の外側すなわちケース外側に露出している。
【０１８８】
リッド側開口縁枠８４２には凹溝８４２ａ（図２５参照）が形成され、ケース本体側開口縁補強枠８４１には凸部８４１ａが形成されているので、リッド８１４を閉めたとき、リッド８１４がケース本体８１３に密着するようになっている。
【０１８９】
一方、支持基板８２２の前記保護用カバー８２８ｂに対応する位置には、支持基板８２２の切欠き８２２ａが設けられている。この切欠き８２２ａを設けたことで、音量調節軸８２６ａ、パイロットランプ８２７の移動量＋αの寸法Ａ−Ａの隙間（図２６参照）が設けられ、後述の支持基板８２２を押し下げて、前記音量調節軸８２６ａ、パイロットランプ８２７をリッド８１４の内側に動かしてリッド８１４の外板８２１より抜き去る際に、支持基板８２２が保護用カバー８２８ｂに当接しないようになっている。そして、支持基板８２２に取付けられているコーン型スピーカ装置８５３、音響アンプ８３２、電池ケース８３１、音量調節部８２５、音量調節軸８２６ａ、パイロットランプ８２７から成るスピーカ部をケース８５０から外す際には、まず、支持基板８２２から、ビス固定されているカバー８１９を取外し、配線やコネクタを露出し、コネクタのピン端子コネクタ８２８ａと図外のソケットの接続を外し、リッド８１４の外板８２１から外に突出した音量調節つまみ８２６を音量調節軸８２６ａから抜き去って外す。その後、支持基板８２２とリッド側壁外板８２１との間をビス固定しているビスを外し、支持基板８２２を下方に移動させ、音量調節軸８２６ａ、パイロットランプ８２７をリッド８１４の外板８２１からリッド８１４の内側に抜いた後、支持基板８２２を、リッド８１４の内側を横方向に移動させて完了する。このように第９実施形態においてもスピーカ等の取り外し作業を簡単に行うことができる。
【０１９０】
なお、スピーカ等を支持基板８２２と共に取外した後の音量調節軸８２６ａ、パイロットランプ８２７の穴は、ゴム（ラバー）等の穴うめ部材であるグロメット（図外）を挿入することで確実に覆うことができる。
【０１９１】
また、スピーカ等とともにを取外した支持基板８２２にカバー８１９をビスで再び固定することで、コーン型スピーカ装置８５３、音響用アンプ８３２、音量調節部８２５、配線等の露出をカバーし、これらの保管時にこれらを保護することも可能である。
【０１９２】
その際、音量調節軸８２６ａに音量調節つまみ８２６を差し込んで保管しておく。
【０１９３】
図２５は、ケース８５０にパソコンＰＣ、携帯電話（またはリモコン）ＳＰ、及びＡＣ電源用アダプタＡＤを収容し、ケース８５０のリッド８１４を開けた状態を示している。ケース８５０のケース本体８１３内部には発泡ウレタンでできた機器固定と機器保護を図る部材８７１が嵌め込まれ、パソコン本体収容凹部８７１ａ、携帯電話収容用凹部８７１ｂ、及びＡＣ電源用アダプタ収容凹部８７１ｃが適所に形成されている。そして、パソコン本体収容凹部８７１ａには、収容されたパソコンＰＣのリッド開閉ロック部ＨＬ及び側方に対応する位置にパソコンリッド開閉用操作凹部（間隙）８７１ｄが形成され、パソコンＰＣをケース８５０に収容した状態でパソコン入出力端子に接続コードＣＢを接続するための凹部（間隙）８７１ｅが形成されている。これによって、パソコンＰＣのリッド開閉ロック部ＨＬを容易に操作し、パソコンＰＣのリッドを開閉することができるとともに、接続コードＣＢを介してパソコンＰＣとリッド８１４の音響用アンプ８３２とを接続することが可能となる。
【０１９４】
また、リッド８１４の側壁外板８２１に備わったＡＣ電源入力端子８３３及び外部マイク入力端子８３４は、図示するようにリッド開放時でも使用可能となっており、ケース８５０の利用性を高めている。さらに、リッド８１４の上方の外板８２１に備わった音量調節つまみ８２６及びパイロットランプ８２７は、リッド８１４の開放時においてケース８５０の載置面よりかなり上方に位置するようになり、音量調節やスピーカの動作確認を行い易くなっている。
【０１９５】
一方、リッド８１４の内側には大きめのノートや書類等を入れる収納部８７２が保持ベルト８７２ａを介して適当な開口度合いを保ちながら設けられている。そして、収納部８７２の側面にはペンホルダ８７３及びＣＤ、フロッピー（登録商標）等の各種ケース、カード入れとして用いる２つの収納部８７４，８７５がさらに備わり、ケース使用上の利便性を高めている。
【０１９６】
なお、第９実施形態の他の構造は、第８実施形態の構造と同じであるため、図面には同一の符号を付して説明を省略する。
【０１９７】
また、この第９実施形態の作用効果についても、第８実施形態の作用効果のうち、ケース本体８１３の外板８２０、リッド８１４の外板８２１の材料（質）と振動板１１０の材料（質）と同じにして、材料の種類を増やすだけでなく、材料の管理を容易にするとともに加工方法、加工装置を統一できるという作用効果を除いて第８実施形態と同様の作用効果を得ることができる。
【０１９８】
また、以上の構成を有するケース８５０は、前述の第４実施形態にかかるケース４、第８実施形態にかかるケース８１０と同様に、パソコンからの音響信号を受けて音楽や音声を流したり、エステやメークの実演時に解説や宣伝を収録した音声再生機器と接続してエステやメーク用具の解説や宣伝広告用の音声を流すことができる。また、ＣＤプレーヤーと接続し、例えばダンス練習場の一角や四隅に置いて音楽を流すことも可能である。
【０１９９】
また、この第９実施形態では、市場に多種類で、かつ、多数出回っているコーン型スピーカ装置８５３を用いることで、スピーカ付きケースとして、より安価なケースあるいは音質のより良いケース等を選択して提供することが容易となる。
【０２００】
なお、第８実施形態の変形例と等価的な変形例が第９実施形態についても考えられる。
【０２０１】
続いて、本発明の第１０実施形態に係るケース８５０について説明する。なお、図２７が第１０実施形態に対応する図面である。
【０２０２】
第１０実施形態のケース８５０に関しては、コーン型スピーカ装置８５３、音響用アンプ８３２、電池ケース８３１、音量調節部８２５、パイロットランプ８２７、音量調節つまみ８２６、ＡＣ電源入力端子８３３、外部マイク入力端子８３４、ジャック８２９が支持基板８２２側に取付けられている。
【０２０３】
このうち、音量調節軸（音量調節つまみの軸）８２６ａ、音量調節つまみ８２６、パイロットランプ８２７はリッド８１４の上壁の外板８２１から外方へ露出し、音量調節部取付けベース８７６を介して支持基板８２２に取付けられている。また、ＡＣ電源入力端子８３３、外部マイク入力端子８３４はリッド８１４の側壁の外板８２１から外方へ露出し、外部入力端子取付けベース８７７（図２８参照）を介して支持基板８２２（図２８には図示せず）に取付けられている。
【０２０４】
前記両取付けベース８７６，８７７はそれぞれリッド８１４の外板８２１に明けられた音量調節部露出用開口部８７６ａに、外部入力端子露出用開口部８７７ａに挿入されており、外部入力端子取付けベース８７７側の開口部である外部入力端子露出用開口部８７７ａには、音量調節部取付けベース８７６とともに前記音量調節つまみ８２６、パイロットランプ８２７、音量調節軸８２６ａをリッド８１４の上部の外板８２１からリッド内側に抜く際に、前記両取付ベース８７６，８７７が取付けられた支持基板８２２を下方に動かすためのスペースとなるスライド溝８７８（図２７、図２８参照）が設けられている。
【０２０５】
このスライド溝８７８は、音量調節つまみ８２６、パイロットランプ８２７を音量調節部取付ベース８７６とともに音量調節部露出用開口部８７６ａからリッド８１４の内側へ抜き取るのに必要な移動量を外部入力端子取付けベース８７７の下方に確保するもので、外部入力端子露出用開口部８７７ａを、外部入力端子取付けベース８７７に前記移動量を加えた大きさに設けることで形成されるものである。
【０２０６】
スライド溝８７８を含む外部入力端子露出用開口部８７７ａ、音量調節部露出用開口部８７６ａとも、左右の縁がリッド８１４の縁補強枠８４０、リッド側開口縁補強枠８４２に、上下の縁が断面コ字形状の開口縁材８７９に囲まれて形成されている。
【０２０７】
また、この開口縁材８７９は、断面コ字形状の内にそれぞれリッド８１４の側壁の外板８２１、リッド８１４の上壁の外板８２１が嵌入されるとともに、開口縁材８７９の端部がリッド８１４の縁補強枠８４０、リッド側開口縁補強枠８４２に固定ピース８７９ａを介してリベットに固定されている。
【０２０８】
前記のように構成された第１０実施形態において、コーン型スピーカ装置８５３、音響用アンプ８３２等を支持基板８２２と共に外すときは、まず支持基板８２２とリッド８１４の側壁の外板８２１との間を固定しているビスを外し、支持基板８２２を下方に押し下げる。このとき外部入力端子露出用開口部８７７ａには、スライド溝８７８が開口しているため、外部マイク入力端子８３４、ＡＣ電源入力端子８３３等が設けられているリッド８１４の側壁の外板８２１から外へ露出している外部入力端子取付けベース８７７の下方へのスライド（図２８の矢印参照）を許容し、リッド８１４の上壁の外板８２１から外へ露出している音量調節部取付ベース８７６とともに、音量調節部取付ベース８７６に設けられている音量調節つまみ８２６、パイロットランプ８２７等をリッド８１４の上壁の外板８２１に開口された音量調節部露出用開口部８７６ａからリッド８１４の内側へ抜き取ることができる。
【０２０９】
次に、支持基板８２２を横方向に動かし、外部入力端子取付けベース８７７を外部入力端子露出用開口部８７７ａからリッド８１４の内側に抜き取り、コーン型スピーカ装置８５３等全てのスピーカ装置の構成要素が取付けられた支持基板８２２を取外す。
【０２１０】
コーン型スピーカ装置８５３等を支持基板８２２と共に取外した後の前記両開口部８７６ａ，８７７ａには、穴うめ部材８８０（図２９参照）に形成された開口部挿入凸起８８０ａ，８８０ｂをそれぞれ挿入し、支持基板８２２とリッド８１４の側壁の外板８２１とを固定していたビスを再び用いてリッド８１４の側壁の外板８２１へ穴うめ部材８８０を固定する。前記音量調節部露出用開口部８７６ａに挿入される開口部挿入凸起８８０ａは、この音量調節部露出用開口部８７６ａと同じ形状、大きさに形成され、前記外部入力端子露出用開口部８７７ａに挿入される開口部挿入凸起８８０ｂは、スライド溝８７８を含む外部入力端子露出用開口部８７７ａと同じ形状、大きさに形成されている。
【０２１１】
この穴うめ部材８８０の両凸起８８０ａ，８８０ｂが前記両開口部８７６ａ，８７７ａに挿入されることで前記両開口部８７６ａ，８７７ａを完全に塞ぐことができる。
【０２１２】
上述したように、第１０実施形態にかかるケース８５０は、スライド溝８７８を設けたことで、音量調節部取付けベース８７６を下げるとき、外部入力端子取付けベース８７７も共に下方にスライドできるように外部入力端子取付けベース８７６がリッド８１４の側壁の外板８２１に明けられたスライド溝８７８内を上下にスライド可能になっている点に特徴がある。
【０２１３】
また、上述の第８実施形態にかかるケース８１０、第９実施形態にかかるケース８５０と同様に、第１０実施形態にかかるケース８５０においてもスピーカを使わずケースとしてのみ使うとき、スピーカ等を補修するとき、またはスピーカを交換するときには、コーン型スピーカ装置８５３、音響用アンプ８３２等が取付けられた支持基板８２２を、ケース８５０のリッド８１４からケース８５０上方に突出した音量調節つまみ８２６、パイロットランプ８２７等と、ケース８５０側方に突出したＡＣ電源入力端子８３３、外部マイク入力端子８３４等と共に取外す。
【０２１４】
なお、支持基板８２２を取外した後に生じるリッド８１４の前記両開口部８７６ａ，８７７ａには前記の穴うめ部材８８０以外に、図２９（ｂ）に示す別部品の穴うめ板８８１を当該両開口部８７６ａ，８７７ａに嵌合してこれを塞ぐようにしても良い。この場合は、穴うめ板８８１をスプリング８８２ａ，８８２ｂで付勢することで外れないようにするのが好ましい。
【０２１５】
なお、この第１０実施形態の作用効果についても、第９実施形態の作用効果と同様に、第８実施形態の作用効果のうちケース本体８１３の外板８２０、リッド８１４の外板８２１の材料（質）と振動板１１０の材料（質）と同じにして、材料の種類を増やすだけでなく、材料の管理を容易にするとともに加工方法、加工装置を統一できるという作用効果を除いて第８実施形態と同様の作用効果を得ることができる。
【０２１６】
また、この第１０実施形態においても、第９実施形態と同様に市場に多種類かつ多量に出回っているコーン型スピーカ装置８５３を用いるので、より安価なケースあるいは音質のより良いケース等を選択して提供することできる。
【０２１７】
そして、以上の構成を有する第１０実施形態のケース８５０は、前述の第４実施形態にかかるケース４、第８実施形態にかかるケース８１０、第９実施形態にかかるケース８５０と同様に、パソコンを介して音楽や音声を流したり、エステやメークの実演時に解説や宣伝広告用の音声を流したり、ＣＤプレーヤーと接続して例えばダンス練習場において音楽を流すことができる。
【０２１８】
本発明は、以上説明した実施形態の他にも種々の利用が可能な薄型フラットスピーカー装置である。例えば、自転車やバイクのフレームに本発明に係る薄型フラットスピーカー装置を利用できる。その場合、振動板をフレームとし、振動板をボックス閉断面に結合し、該ボックス閉断面内に振動付与部を設ける。また、自転車のように電源のない場合は、電池を電源とし、電池ボックスをフレーム部に併設すると良い。また、本発明の自立型フラットスピーカー装置の支持台を、自転車やバイクのハンドルまたはフレームを挟んで取付け可能としたクランプ形状として、該クランプ部を蝶ナット等により締め付けて自転車やバイクのハンドルまたはフレームに着脱可能な薄型フラットスピーカー装置とすることもできる。
【０２１９】
【発明の効果】
以上説明したように、本発明の請求項１または請求項２にかかる薄型フラットスピーカー装置は、振動板の表裏がアルミニウムまたはステンレススチールであり、芯材が独立気泡の低発泡ポリエチレンであっても表裏方向の貫通孔が無く、平滑で美観があり、性能の劣化を防ぎかつ剛性が高い上、接着性が良い。また、芯材は独立気泡の低発泡ポリエチレンであり、独立の気泡孔を有し低密度で疎となっており、軽量で剛性も高い上、表裏のアルミニウムまたはステンレススチールの波打ちを抑えフラットで滑らかな表面を形成している。これにより、振動板全体としては全体としては、密度が低く、軽量かつ、曲げ、剛性が高い構造体で、表裏方向の貫通孔がないという機械的性質を有しているので高性能となる。
【０２２０】
また、振動板にアルミニウムまたはステンレススチールと低発泡ポリエチレンを使用しているので材料を容易に得ることができ、安価な薄型フラットスピーカー装置となる。
【０２２１】
また、本発明の請求項３にかかる掲示板には、照明手段側に振動板のアルミニウムの面材またはステンレススチールの面材が面しているため、照明手段の光をアルミニウムの面材またはステンレススチールの面材が反射し、透光性を有した掲示板からフラットで均一な反射間接光が掲示物に照射され見る者に美観を起こさせるとともに、照明手段を内蔵しているため掲示板の外部に照明手段を設けなくても良く、外部に突起物のない外観がシンプルであり、取扱い性に優れるものとなる。また、裏面板に請求項１又は請求項２に記載の薄型フラットスピーカー装置の振動板を使用しているので、音は掲示板の裏面から放音され、振動板の放音面の前に掲示物がないため良い音を発生することができる。また、請求項１または請求項２の薄型フラットスピーカー装置と同様に、材料が容易に得られ安価で剛性が高く堅牢な掲示板となる。また、振動板の表裏には表裏方向の貫通孔がないという構成を有している。そのため、掲示パネル等に設けたスピーカー装置の内外で温度差が生じる等により空気の移動が起こったとき、ゴミ、ホコリが従来の振動板のように貫通孔にたまって汚れの原因となるのを防ぐ。
【０２２２】
また、本発明の請求項４にかかるケースは、上述の請求項に記載の薄型フラットスピーカー装置や掲示板と同様に、材料が容易に得られ安価で剛性が高く堅牢なケースとなる。また、振動板をケースの外板や内底板と兼用でき、堅牢で良い音を発するケースになる。
【０２２３】
また、本発明の請求項５または請求項６にかかる自立型フラットスピーカー装置は、上述の請求項に記載の薄型フラットスピーカー装置や掲示板、ケースと同様に、材料が容易に得られ安価で剛性が高く堅牢な自立型フラットスピーカー装置となる。また、フレームが振動板の周囲を覆い見栄えが良い。
【０２２４】
また、本発明の請求項７または請求項８にかかるディスプレイ装置は、上述の請求項に記載の薄型フラットスピーカー装置や掲示板、ケース、自立型フラットスピーカー装置と同様に、材料が容易に得られ安価で剛性が高く堅牢なディスプレイ装置となる。また、フレームが振動板の周囲を覆い見栄えが良い。
【０２２５】
また、本発明の請求項９または請求項１０にかかる壁取付型フラットスピーカー装置は、上述の請求項に記載の薄型フラットスピーカー装置や掲示板、ケース、自立型フラットスピーカー装置、ディスプレイ装置と同様に、材料が容易に得られ安価で剛性が高く堅牢な壁取付型フラットスピーカー装置となる。また、フレームが振動板の周囲を覆い見栄えが良い。さらに、フレームを介して薄型フラットスピーカー装置を壁に容易に取り付けることができる。
【０２２６】
また、本発明の請求項１１に記載のケースは、スピーカ装置部分を材料容易に得られ安価で剛性が高く堅牢な薄型スピーカとすることができ、また、ケース内側に設けられケース外板に明けられた透孔を介して音波を外部に放音するものであるためスピーカ装置部を保護することができる。
【０２２７】
また、スピーカ装置部分を、スピーカ装置部分を取付けた支持基板とともに脱着できるため、スピーカとして使用しないときは取外してケースとして収納部分を拡げて、また軽量化して使用することができる。
【図面の簡単な説明】
【図１】本発明の第１実施形態にかかる薄型フラットスピーカー装置の断面図である。
【図２】図１の薄型フラットスピーカー装置に使用する振動板の断面斜視図である。
【図３】本発明の第２実施形態にかかる薄型フラットスピーカー装置の断面図である。
【図４】図２の薄型フラットスピーカー装置に使用する振動板の断面斜視図である。
【図５】本発明の第３実施形態にかかる掲示板を一部透視状態で示した斜視図である。
【図６】図５の掲示板のＶＩ−ＶＩ断面図である。
【図７】図５の掲示板のＶＩＩ−ＶＩＩ断面図である。
【図８】図５の掲示板のＶＩＩＩ−ＶＩＩＩ断面図である。
【図９】本発明の第４実施形態にかかるケースの斜視図である。
【図１０】図９のケースのＸ−Ｘ断面図である。
【図１１】図９のケースを開いた状態で示す斜視図である。
【図１２】本発明の第５実施形態にかかる自立型フラットスピーカー装置の斜視図である。
【図１３】図１２の自立型フラットスピーカー装置のＸＩＩＩ−ＸＩＩＩ断面図である。
【図１４】図１２の自立型フラットスピーカー装置のＸＩＶ−ＸＩＶ断面図である。
【図１５】本発明の第６実施形態にかかるディスプレイ装置及び第７実施形態にかかる壁取付型フラットスピーカー装置の斜視図である。
【図１６】図１５のディスプレイ装置のＸＶＩ−ＸＶＩ断面図である。
【図１７】図１５のディスプレイ装置のＸＶＩＩ−ＸＶＩＩ断面図である。
【図１８】図１５に示したディスプレイ装置の変形例を示す、図１７に対応する断面図である。
【図１９】図１５の壁取付型フラットスピーカー装置の、ＸＶＩＩＩＩ−ＸＶＩＩＩＩ断面図である。
【図２０】図１５の壁取付型フラットスピーカー装置のＸＸ−ＸＸ断面図である。
【図２１】本発明の第８実施形態にかかるケースの斜視図である。
【図２２】図２１に示したケースのＳＡ−ＳＡ断面図である。
【図２３】図２１のケースに使用するカバーの斜視図である。
【図２４】本発明の第９実施形態にかかるケースの斜視図である。
【図２５】図２４に示したケースのリッドを開いた状態で示す斜視図である。
【図２６】図２４に示したケースのＳＢ−ＳＢ断面図である。
【図２７】本発明の第１０実施形態にかかるケースの、図２６に対応する断面図である。
【図２８】図２７における外部マイク入力端子取付けベースの取付け状態を詳細に示した断面図である。
【図２９】図２８の外部マイク入力端子取付けベースの代わりに嵌合させる穴うめ部材や穴うめ板を嵌合状態で示した図である。
【符号の説明】
１，２　　薄型フラットスピーカー装置
３　　掲示板
４　　ケース
５　　自立型フラットスピーカー装置
６　　ディスプレイ装置
７　　壁取付型フラットスピーカー装置
１１０　　振動板
１１１　　芯材
１１２，１１３　　面材
１１４，１１５　　塗装層
１１６，１１７　　接着層
１２０　　振動付与部
１２０ａ　　配線
１２１　　ボビン
１２２　　ボイスコイル
１２３　　磁気ギャップ
１２４　　板バネ
１２５　　ハウジング
１２５ａ　　底板
１２５ｂ　　取付フランジ
１２５ｃ　　隙間
１２６　　永久磁石
１２７　　鉄板
１２８　　ダンパー
１２９　　ジャック
１２９ａ　　リード線
１３０　　音響用アンプ
２１０　　振動板
２１１　　芯材
２１２，２１３　　面材
２１４，２１５　　接着層
２２０　　振動付与部
２２１，２２２　　セラミックス
２２３　　真鍮電極板
２２４　　振動伝達部
２２５　　ダンパウェイト
２３１　　プラグ
２３２　　配線
３１０　　掲示部
３１１，３１２　　支持パネル
３１３　　掲示パネル
３１３ａ　　前側端
３１３ｂ　　カバー枠挿入溝
３２０　　蛍光灯
３２１　　アクリル板
３２２　　イノズキャンセラー
３３０　　フレーム
３３１　　支持枠
３３２　　カバー枠
３３２ａ　　後縁部
３３２ｂ　　カバー枠挿入溝
３３２ｃ　　掲示パネル挿入溝
３３３　　ヒンジ
３３３ａ　　スプリング
３３４　　リッド
３３５　　前縁部板
３３５ａ　　側縁部
４１０　　ケース本体
４１２　　ウレタン
４１２ａ　　収納凹部
４２０　　リッド
４２１　　リッド内底板
４２２　　ウレタン
４２３　　外板
４２３ａ　　前面板
４２３ｂ　　側面板
４２４　　縁補強枠
４２５　　外板
４２６　　コーナ補強ピース
４２７　　リッド内空所
４３０　　ヒンジ
４４０　　取っ手
４５０　　掛止具
５１０　　フレーム
５２０　　支持台
５２１　　支持接続部材
５３０　　アンプ
５３１　　ジャック
５４０　　外部音響機器
５４１　　接続コード
６１０　　薄型ディスプレイ
６２１　　フレーム
６２３　　弾性体
６２４　　フレーム
６３０　　弾性体
６４０　　ディスプレイ支持台
６４１　　支持脚
７１０　　フレーム
７１１　　挟持部
７１２　　壁取付用延在部
７１３　　振動吸収用弾性体
７１４　　振動吸収用弾性体
７３０　　凹所
８１０　　ケース
８１１　　外表面
８１２　　透孔
８１３　　ケース本体
８１４　　リッド
８１５　　ヒンジ
８１５ａ，８１５ｂ　　ヒンジストッパ面
８１６　　回動軸
８１７　　取っ手
８１８　　掛け具
８１９　　カバー
８１９ａ　　ビス孔
８２０　　外板
８２１　　外板
８２２　　支持基板
８２２ａ　　切欠き
８２２ｂ　　側壁外板固定部
８２２ｃ　　端縁
８２３　　押え部材
８２４　　電池
８２５　　音量調節部
８２６　　音量調節つまみ
８２６ａ　　音量調節軸
８２６ｂ　　凸条部
８２７　　パイロットランプ
８２８　　配線
８２８ａ　　ピン端子コネクタ
８２８ｂ　　保護用カバー
８２９　　ジャック
８３１　　電池ケース
８３２　　音響用アンプ
８３３　　ＡＣ電源入力端子
８３４　　外部マイク入力端子
８３５　　振動板支持ブラケット
８３６　　支持弾性体
８３７　　シール板
８３７ａ　　ハンドル
８３８　　取付けベース
８３８ａ　　外板端
８３８ｂ　　固定ピース
８３９　　取付ベース露出用開口穴
８４０　　縁補強枠
８４０ａ　　カシメ
８４１　　ケース本体側開口縁補強枠
８４１ａ　　凸部
８４２　　リッド側開口縁補強枠
８４２ａ　　凹溝
８４３　　コーナ接続ピース
８４６　　スペーサ
８４７　　放音孔
８４９　　脚
８５０　　ケース
８５１　　外表面
８５２　　透孔
８５３　　コーン型スピーカ装置
８５５　　配線
８７６　　音量調節部取付けベース
８７６ａ　　音量調節部露出用開口部
８７７　　外部入力端子取付けベース
８７７ａ　　外部入力端子露出用開口部
８７８　　スライド溝
８７９　　開口縁材
８７９ａ　　固定ピース
８８０　　穴うめ部材
８８０ａ，８８０ｂ　　開口部挿入凸起
８８１　　穴うめ板
８８２ａ，８８２ｂ　　スプリング
ＡＤ　　ＡＣ電源用アダプタ
ＣＢ　　接続コード
ＨＬ　　リッド開閉ロック部
ＰＣ　　パソコン[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an improvement of a thin flat speaker, and more particularly, to an inexpensive and robust thin flat speaker and various applications using the same.
[0002]
Problems to be solved by the prior art and the invention
The following is a conventional technique of a diaphragm used for a thin flat speaker.
[0003]
First, Japanese Patent Application Laid-Open No. 2002-44782 entitled "Diaphragm for electroacoustic transducer" can be mentioned. This publication discloses that a low-density polyethylene sheet, a paper material, and a high-density polyethylene sheet are laminated to obtain a diaphragm having a foamed structure in which the low-density polyethylene sheet is foamed by using moisture in the paper material. .
[0004]
However, the diaphragm disclosed here uses a paper core material, a foamed layer of a low-density polyethylene sheet on the front and back, and a high-density polyethylene sheet, and must be a dedicated speaker material. In addition, it has disadvantages of relatively low rigidity and low mechanical strength.
[0005]
Subsequently, Japanese Patent Application Laid-Open No. 2001-313993, entitled "Diaphragm of Thin Flat Speaker" is given. In this publication, a rigid reinforcing material containing glass fiber is provided above and below (front and back) of a core material of a foamed polyurethane layer, and a hot melt film is provided above and below (front and back) to prevent the diaphragm from being damaged. 1. Thickness provided with a high-hardness surface material (due to the need to protect the surface of the diaphragm as a surface material) such as polyester nonwoven fabric and aluminum and a good adhesive surface (due to the need to bond a transducer, ie, a driving device). A laminate of 0 mm to 3.0 mm is disclosed. However, the diaphragm disclosed here has many constituent members, which increases the cost.
[0006]
On the other hand, there are some conventional examples related to the application of a thin flat speaker.
[0007]
Specifically, the following is known as a device in which a decorative sheet is provided on the surface of a thin flat type speaker or a diaphragm is used for a decorative sheet or the like.
{Circle around (1)} JP-A-2000-125390 “Panel type speaker”
In this publication, a speaker is proposed in which a diaphragm is made of styrene foam and has a thickness of about 5.0 mm, and a decorative sheet is attached in front of the diaphragm.
[0008]
However, in the case of this panel type speaker, the decorative sheet provided in front of the diaphragm is in contact with the air, and the decorative sheet vibrates the air and overlaps with the sound from the diaphragm to overlap with the decorative sheet. There is a possibility that a sound may be generated, and the vibration of the diaphragm may be attenuated by the decorative sheet on the front. That is, it is conceivable that the acoustic characteristics of the diaphragm are reduced, and the use is limited.
[0009]
In addition, since the diaphragm is opaque and a decorative sheet is stretched on its front surface, if it is used for a bulletin board such as an advertisement that requires lighting, a light is placed on one side of the decorative sheet above, below, left, or right. There is no choice but to provide a lamp to illuminate, and even if a thin flat speaker is used, a projection is formed, and its use is limited.
{Circle around (2)} JP-A-2002-27588 “Panel-type speaker system”
In this publication, there is proposed a speaker including a pair of flat-shaped diaphragms disposed to face each other in front and rear, and a single or a plurality of exciters interposed between the diaphragms, and a surface of the diaphragm is proposed. Is disclosed as an advertising signboard, a projection surface, or a whiteboard.
{Circle around (3)} Japanese Patent Application Laid-Open No. 2001-359188 “Drive Unit and Panel Speaker with the Same”
In this publication, a voice coil, a driving unit having a magnetic gap, and a vibration plate vibrated by the driving unit are disclosed, and a material having high hardness and excellent impact resistance, such as carbon and Kepler, is disclosed. A diaphragm comprising a film-shaped surface vibration member made of and a honeycomb-structured core material having a honeycomb layer or a foam layer is disclosed.
[0010]
However, those described in these publications (2) and (3) have the same drawbacks in the case where the diaphragm is opaque and uses illumination as in the configuration described in the publication (1). With
[0011]
Further, carbon, Kepler, or honeycomb is used for the diaphragm, which has many components, is made of an expensive material, and has the disadvantage of being expensive.
[0012]
Japanese Patent Application Laid-Open No. 2001-197596 discloses that the diaphragm is made of transparent resin, and a decorative sheet or display is arranged on the back surface of the diaphragm so that the decorative sheet or display can be seen through the transparent resin diaphragm. The publication “Audio Transducer and Audio-Visual Device” is known.
[0013]
However, the prior art described in this publication requires the use of a transparent actuation diaphragm and a transparent stator, and a transparent polyester film that vibrates air requires a conductive coating. Moreover, it is difficult to process and assemble this film, for example, by mounting it while pulling it so as to leave residual tension on the film. Further, since a protective member such as a metal grit for protecting the film from being mechanically damaged must be provided so as to be able to see through and allow sound waves to pass therethrough, there is a drawback that the structure has many components and a complicated structure.
[0014]
On the other hand, Japanese Patent Application Laid-Open No. H11-331965, entitled "Information Processing Apparatus and Speaker Unit Applicable to the Apparatus", is known as an example in which a part of the housing of a device is a speaker.
[0015]
In this speaker unit, the vibration region of the housing is formed thinner than other regions. However, since a part is formed thin, only a diaphragm having a small sound emitting surface can be obtained. In addition, there is a possibility that good acoustic characteristics cannot be obtained depending on the material of the housing. Furthermore, since a part must be thinned, it is necessary to perform injection molding or blow molding with resin, and it is difficult to achieve both moldability and acoustic characteristics. There is also.
[0016]
Japanese Patent Application Laid-Open No. 2001-157624 entitled "Bathroom Sound Reproducing Apparatus" is known as a speaker that vibrates structural members such as a ceiling and wall panels.
[0017]
In this bathroom sound reproducing device, an AC signal is supplied to a voice coil unit, and a magnet and an outer pole vibrate with magnetic flux induced by the voice coil unit, and this vibration is transmitted to a base and a frame via a suspension, It vibrates structural members made of synthetic resin, such as ceilings, wall panels, and aprons for bathtubs.
[0018]
However, similar to the one described in Japanese Patent Application Laid-Open No. 2000-125390, a structural member made of a synthetic resin such as an apron for a ceiling, a wall panel, or a bathtub in front of a frame that generates vibration is in contact with air. Functions as a diaphragm that emits sound by vibrating air, so the vibration of the base or frame may be attenuated by this synthetic resin structural member, and the material of this structural member must be selected in consideration of moldability. There is a possibility that a material having good acoustic characteristics cannot be obtained because the material is limited.
[0019]
SUMMARY OF THE INVENTION An object of the present invention is to provide an inexpensive and robust thin flat speaker which can solve all of the above problems, and various applications using the flat speaker.
[0020]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, a thin flat speaker device according to the present invention has a core material made of low-foam polyethylene of closed cells, and a face material of aluminum is joined to the front and back of the core material, and the total thickness is 1.5 mm. A laminated composite plate of aluminum and low-foamed polyethylene having a thickness of up to 6.0 mm is used as a diaphragm, and a vibration imparting portion for applying vibration to the diaphragm in accordance with an acoustic electric signal is fixed to one of the front and back surfaces of the diaphragm. And
[0021]
The front and back of the diaphragm are made of aluminum, and the core material is a closed-cell, low-foam polyethylene with no through holes in the front and back directions, smooth and beautiful appearance, preventing deterioration of performance, high rigidity, and good adhesion. . In addition, the core material is closed-cell, low-foam polyethylene, which has closed-cell pores, is low-density and sparse, is lightweight, has high rigidity, and suppresses the wavy of aluminum on the front and back to provide a flat and smooth surface. Has formed. As a result, the diaphragm as a whole has a low-density, light-weight, high-bending, high-rigidity structure, and has the mechanical properties of no through-holes in the front and back directions. Become. In addition, since aluminum and low-foam polyethylene are used for the diaphragm, the material can be easily obtained, resulting in an inexpensive thin flat speaker device.
[0022]
In addition, the thin flat speaker device according to claim 2 of the present invention has a core material of closed-cell low-foaming polyethylene, and a stainless steel face material bonded to the front and back of the core material, and has a total thickness of 1.2 mm or more. A laminated composite plate of 4.0 mm stainless steel and low-foam polyethylene is used as a diaphragm, and a vibration imparting portion for applying vibration to the diaphragm in accordance with an acoustic electric signal is fixed to one of the front and back surfaces of the diaphragm. And
[0023]
As with the thin flat speaker device according to the first aspect, the thin flat speaker device has a high performance and can be easily obtained from a material, and is inexpensive, has high rigidity, and is robust.
[0024]
The bulletin board according to claim 3 of the present invention includes a back plate, a light-transmitting bulletin board facing the back plate at a predetermined distance, and an interposition between the back plate and the bulletin board. Wherein the back plate is the thin flat speaker device according to claim 1 or 2.
[0025]
In such a bulletin board, since the aluminum surface material or the stainless steel surface material of the diaphragm faces the illumination means side, the light of the illumination means is reflected by the aluminum surface material or the stainless steel surface material, and the light transmission A noticeable flat and indirect light from a bulletin board that illuminates the noticeable object to illuminate the viewer, and the built-in lighting means eliminates the need to provide lighting means outside the bulletin board. The appearance is simple without protrusions, and the handleability is excellent. Further, since the diaphragm of the thin flat speaker device according to claim 1 or 2 is used for the back plate, the sound is emitted from the back surface of the bulletin board, and is posted in front of the sound emitting surface of the diaphragm. Because there is no sound, good sound can be generated. Further, similar to the thin flat speaker device according to the first or second aspect, a material can be easily obtained, and it is an inexpensive, highly rigid, and robust bulletin board. Further, the diaphragm has a configuration in which there is no through hole in the front and back directions on the front and back sides. Therefore, when air moves due to a temperature difference inside and outside the speaker device provided on the signboard, etc., dust and dirt accumulate in the through hole like a conventional diaphragm and cause dirt. prevent.
[0026]
The case according to claim 4 of the present invention is a thin flat speaker device according to claim 1 or 2, wherein at least a part of the case has a handle and is capable of carrying stored items. It is characterized by being comprised from.
[0027]
As in the case of the thin flat speaker device and the bulletin board described in the above-mentioned claim, a material is easily obtained, and the case is inexpensive, has high rigidity, and is robust. In addition, the diaphragm can be used also as the outer plate and the inner bottom plate of the case, and the case is robust and emits good sound.
[0028]
According to a fifth aspect of the present invention, there is provided a self-supporting flat speaker device according to the first or second aspect, and a frame directly attached to a periphery of a diaphragm of the thin flat speaker device. , A supporting base connected to a part of the frame.
[0029]
As with the thin flat speaker device, the bulletin board, and the case described in the above-described claims, a self-supporting flat speaker device that can be easily obtained from materials, is inexpensive, has high rigidity, and is robust. In addition, the frame covers the periphery of the diaphragm and has a good appearance.
[0030]
According to a sixth aspect of the present invention, there is provided a self-contained flat speaker device according to the first or second aspect, which is indirectly connected to a periphery of a diaphragm of the thin flat speaker device via an elastic body. And a support base connected to a part of the frame.
[0031]
Similar to the self-supporting flat speaker device according to the fifth aspect, a self-supporting flat speaker device which can be easily obtained from materials, is inexpensive, has high rigidity, and is robust. In addition, the frame covers the periphery of the diaphragm and has a good appearance.
[0032]
According to a seventh aspect of the present invention, there is provided a display device according to the first or second aspect, wherein the thin flat speaker device, the display body, and a part of a periphery of a diaphragm of the thin flat speaker device are displayed on the display. It is characterized by comprising a mounting frame attached to the side surface of the main body via an elastic body, and a frame for directly fixing the remaining portion around the diaphragm of the thin flat speaker device.
[0033]
Similar to the thin flat speaker device, the bulletin board, the case, and the self-supporting flat speaker device described in the above claims, a display device can be easily obtained from a material, which is inexpensive, has high rigidity, and is robust. In addition, the frame covers the periphery of the diaphragm and has a good appearance.
[0034]
In addition, a display device according to claim 8 of the present invention includes the thin flat speaker device according to claim 1 or 2, a display body, and a part around a diaphragm of the thin flat speaker device. It is characterized by comprising a mounting frame attached to the side surface of the main body via an elastic body, and a frame for fixing the remaining portion around the diaphragm of the thin flat speaker device via the elastic body.
[0035]
As in the case of the self-standing flat speaker device according to the seventh aspect, a material is easily obtained, and the display device is inexpensive, has high rigidity, and is robust. In addition, the frame covers the periphery of the diaphragm and has a good appearance.
[0036]
According to a ninth aspect of the present invention, there is provided a wall-mounted flat speaker device according to the first or second aspect, and a frame directly mounted around a diaphragm of the thin flat speaker device. Wherein the frame includes a holding portion for holding an end of the diaphragm of the thin flat speaker device, and a wall-mounting extending portion extending from the holding portion.
[0037]
Like the thin flat speaker device, the bulletin board, the case, the self-supporting flat speaker device, and the display device according to the above-described claims, a wall-mounted flat speaker device that is easily obtained from materials, is inexpensive, has high rigidity, and is robust. In addition, the frame covers the periphery of the diaphragm and has a good appearance. Furthermore, the thin flat speaker device can be easily attached to the wall via the frame.
[0038]
According to a tenth aspect of the present invention, there is provided a wall-mounted flat speaker device, wherein the thin flat speaker device according to the first or second aspect and an elastic body are provided around a diaphragm of the thin flat speaker device. An indirectly mounted frame, wherein the frame has a holding portion for holding an end portion of the diaphragm of the thin flat speaker device, and a wall mounting extending portion extending from the holding portion. And
[0039]
Similarly to the wall-mounted flat speaker device according to the ninth aspect, a material can be easily obtained, and the wall-mounted flat speaker device is inexpensive, has high rigidity, and is robust. In addition, the frame covers the periphery of the diaphragm and has a good appearance. Furthermore, the thin flat speaker device can be easily attached to the wall via the frame.
[0040]
In the case according to the eleventh aspect of the present invention, in a case having a handle in a part and capable of carrying a storage item, a through-hole through which a sound wave passes through at least a part of an outer plate of a lid is opened. The thin flat speaker device according to claim 1 or 2 is provided facing the through-hole, and a support substrate on which the thin speaker device is mounted is detachably mounted inside the case. I have.
[0041]
With regard to the speaker device portion, it is possible to obtain a low-profile, high-rigidity, robust thin speaker that can be easily obtained from a material. Further, since the speaker device portion is provided inside the case and emits sound waves to the outside through a through hole formed in the case outer plate, the speaker device portion can be protected.
[0042]
Further, since the speaker device portion can be detached together with the support substrate to which the speaker device is attached, when not used as a speaker, the speaker device portion and the support substrate can be removed to expand the housing portion as a case, and can be used with reduced weight. .
[0043]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, hatching is omitted as appropriate for ease of explanation.
[0044]
First, a thin flat speaker device 1 according to the first embodiment will be described.
[0045]
The thin flat speaker device 1 according to the first embodiment shown in FIG. 1 has a core member 111 made of low-cellular polyethylene having closed cells, and a flat and very thin aluminum plate member 112 on the front and back of the core member 111. The diaphragm 110 is a laminated composite plate of aluminum having a total thickness of 1.5 mm to 6.0 mm and a closed cell low foamed polyethylene having a total thickness of 1.5 mm to 6.0 mm in which a sandwich structure 113 is bonded (joined) with an adhesive. One side has a configuration in which a vibration applying section 120 that applies vibration to the diaphragm 110 in accordance with an acoustic electric signal is directly fixed by bonding with an adhesive such as a double-sided adhesive tape.
[0046]
As shown in FIG. 2, the diaphragm 110 includes, from one side manufactured by Sankyo Unite Industry Co., Ltd., aluminum, polyethylene, and light aluminum (registered trademark), which is a laminated composite plate of aluminum and resin of aluminum, containing an adhesive. The total thickness of aluminum, polyethylene, and aluminum is 1.5 mm, 2.0 mm, 3.0 mm, 4.0 mm, or 6.0 mm.
[0047]
This lightium (registered trademark) is made by bonding low-expanded polyethylene having closed-cell pores to a core material 111, and sandwiching the front and back of the core material 111 with face members 112 and 113 of a thin aluminum sheet that maintains high strength. Due to the sandwich structure (laminated composite structure), it has high rigidity.
[0048]
In addition, reference numerals 116 and 117 shown in FIG. 2 are bonding layers for bonding the core material 111 and the front and back aluminum face materials 112 and 113.
[0049]
Further, the core member 111 is made of low-foamed polyethylene having closed-cell holes, and is lightweight. (Specific examples are 0.80 to 1.30 as described later.)
In addition, a sandwich structure in which closed-cell low-foam polyethylene is used as the core material 111 and the front and back surfaces are sandwiched and bonded between aluminum metal sheet materials 112 and 113 to suppress the waving that tends to occur in the metal sheet, and Has a flat, smooth (smooth) surface due to low foaming and closed cells.
[0050]
The front and back aluminum surface materials 112 and 113 may be coated with a surface for aesthetics and reflection adjustment, or may be used as they are or after being subjected to alumite processing. FIG. 2 shows that the surfaces of the front and back aluminum face materials 112 and 113 are further coated, and coating layers 114 and 115 are formed.
[0051]
The relationship between the total thickness, the aluminum thickness, and the specific gravity of Lightnium (registered trademark) is as follows.
[0052]
[Table 1]

The diaphragm 110 of the thin flat speaker device 1 according to the first embodiment of the present invention and the vibration imparting unit 120 used for driving the diaphragm 110 apply a known technique. Panel-type speaker device described in JP-A-359188, "Drive unit and panel speaker including the same", JP-A-2002-27588, "Panel-type speaker system" or JP-A-11-220785, "Panel-type speaker device" Similarly to the first embodiment, a panel type speaker device based on a bending wave theory, in which a diaphragm 110 is driven by a driver unit corresponding to the vibration applying unit 120 according to the first embodiment of the present invention to perform output reproduction, has a basic configuration.
[0053]
More specifically, the NXT (registered trademark) DM (Distributed Mode) type panel speaker technology of New Transducer Limited, UK is applied. By using this, it has bidirectionality, realizes flat frequency characteristics in the middle and high frequencies, and has a large radiating area because fine divided vibrations occur in the diaphragm. The level is maintained and sufficient energy can be obtained.
[0054]
That is, sound is emitted by causing the diaphragm 110 to partially bend by the vibration by the driver unit corresponding to the vibration applying unit 120. Here, the diaphragm 110 vibrated by the known driver unit is capable of reproducing and outputting good sound quality even in a low frequency band since the outer peripheral portion normally vibrates freely in an unconstrained state. However, a thin flat speaker device used for a presentation board to be described later of the present invention, a self-supporting thin flat speaker device capable of standing upright on the speaker itself, a thin flat speaker device used to be mounted on a display device, and mounted on a wall surface The thin flat speaker device used for mounting and supporting the periphery of the diaphragm (sound emitting surface) 110, or for concealing the cut surface of the periphery from aesthetics, etc. It is necessary to provide a frame around the sound surface (sound emitting surface) 110. However, when the diaphragm (sound emitting surface) 110 is large, the diaphragm (sound emitting surface) ) 110 can be reproduced and output with good sound quality without any problem even if the periphery of 110 is fixed to a frame. When the diaphragm (sound emitting surface) 110 is small, an elastic body is interposed between the periphery of the diaphragm 110 and the frame to support the partial bending operation by the vibration so as not to be killed. The reproduction output of good sound quality can be performed.
[0055]
Subsequently, a specific configuration of the above-described vibration applying unit 120 will be described. As shown in FIG. 1, the vibration applying unit 120 includes a bobbin 121 fixed (adhered and fixed) to the diaphragm 110, a voice coil 122 wound around the bobbin 121, and a magnetic gap 123 into which the voice coil 122 is inserted. A housing 125 fixed (adhered and fixed) to the vibration plate 110 via a leaf spring 124, a permanent magnet 126 fixed to a bottom plate 125 a of the housing 125, and an iron plate 127 fixed to the permanent magnet 126. . A magnetic gap 123 is formed in the permanent magnet 126 and the iron plate 127.
[0056]
A damper 128 swingably connects the bobbin 121 and the iron plate 127. Reference numeral 129 denotes a jack to which a connection cord from an external audio device such as a CD or MD (not shown) or an amplifier can be connected. Reference numeral 129a denotes a lead wire wired between the jack 129 and the voice coil 122. is there.
[0057]
With the above configuration, by applying an electroacoustic signal to the voice coil 122, the bobbin 121 around which the voice coil 122 is wound vibrates according to the acoustoelectric signal, and is adhered and fixed to the bobbin 121 to be integrated. The diaphragm 110 vibrates and is emitted as sound to be a speaker.
[0058]
At this time, the mounting flange 125b of the housing 125 and the diaphragm 110 are fixed by bonding via a leaf spring 124, whereby the vibration applying section 120 is supported by the diaphragm 110, and A slit 124a is provided, and a gap 125c is provided between the diaphragm 110 and the mounting flange 125b of the housing 125, so that the vibration of the diaphragm 110 is allowed by deformation of the leaf spring 124. .
[0059]
Instead of the plate spring 124, the diaphragm 110 and the mounting flange 125b of the housing 125 may be mounted via an elastic body made of foam rubber.
[0060]
As is clear from the above configuration, in the thin flat speaker device 1 according to the first embodiment, since the front and back surfaces of the diaphragm 110 are aluminum, even if closed-cell low-foam polyethylene is used for the core member 111, the front and back directions are small. There is no through hole, smooth and excellent appearance, and there is no possibility that the closed cell holes of the core material 111 are clogged with airborne dust or the like to close or close the closed cell holes. Can provide a speaker that does not need to be provided with other decorations, has high rigidity, has good adhesiveness, can be firmly adhered to the vibration applying portion 120, and can be used when attaching the diaphragm 110 to another member, or When attaching other members such as a frame to the plate 110, a speaker that can be easily attached and attached and that can be easily assembled can be provided. In addition, since the core material 111 is a closed-cell low-foam polyethylene, it has independent cell pores, is low-density and sparse, is lightweight, has high rigidity, and suppresses the wavy of the front and back aluminum, and is flat and smooth. Forming a perfect surface. Therefore, the diaphragm 110 as a whole has a low density, is lightweight, has a high bending and rigidity, and has mechanical properties such that there is no through-hole in the front and back directions.
[0061]
In addition, since a laminated composite plate of aluminum and low-foam polyethylene is used for the diaphragm 110, it is widely used for building exterior walls, interior walls, ceiling partitions, doors and signboards, and insulated cargo compartments, gates, and wings of lorries. Further, it is a material that is widely used, and can be easily obtained and inexpensive.
[0062]
Subsequently, a thin flat speaker device 2 according to a second embodiment of the present invention will be described.
[0063]
As shown in FIG. 3, the thin flat speaker device 2 according to the second embodiment has a core 211 made of low-foam polyethylene with closed cells, and a flat and extremely thin plate made of stainless steel on the front and back of the core 211. A diaphragm 210 is a laminated composite plate of stainless steel having a total thickness of 1.2 mm to 4.0 mm and a closed cell low foam polyethylene having a sandwich structure in which face materials 212 and 213 are bonded (joined) with an adhesive. The vibration applying unit 220 that applies vibration to the vibration plate 210 in accordance with an acoustic electric signal is directly fixed to one side of the vibration plate 210 by bonding with an adhesive such as a double-sided adhesive tape.
[0064]
As shown in FIG. 4, the diaphragm 210 is made of one of Sanlite (registered trademark), which is a laminated composite plate of stainless steel, resin, and stainless steel of stainless steel, polyethylene, and stainless steel. And the total thickness of stainless steel, polyethylene, and stainless steel combined is 1.2 mm, 1.5 mm, 2.0 mm, 3.0 mm, and 4.0 mm.
[0065]
In this Saslite (registered trademark), low-expanded polyethylene having closed-cell pores is used as a core material 211, and the front and back of the core material 211 are sandwiched between stainless steel sheet materials 212 and 213 that maintain high strength and bonded. It has high rigidity by providing a sandwich structure (laminated composite structure). In addition, 214 and 215 shown in FIG. 4 are adhesive layers which adhere the core material 211 and the front and back stainless steel face materials 212 and 213. Further, the core member 211 is made of low-foam polyethylene having closed-cell pores, and is lightweight. (Specific examples include a specific gravity of 1.03 to 1.95, as described later.)
Further, a sandwich structure in which closed-cell low-foam polyethylene is used as the core material 211 and the front and back surfaces are sandwiched and adhered to the surface materials 212 and 213 of a stainless steel metal thin plate to suppress waving that tends to occur in the metal thin plate, and Polyethylene 211 provides a flat, smooth (smooth) surface due to low foaming and closed cells.
[0066]
In addition, since the front and back are stainless steel surface materials 212 and 213 having excellent corrosion resistance, they may be used as they are, but their surfaces may be coated for aesthetics and reflection adjustment. FIG. 4 shows a case where the surface is not coated. The relationship between the total thickness and the specific gravity of Saslite (registered trademark) is as follows.
[0067]
[Table 2]

The diaphragm 210 of the thin flat speaker device 2 according to the second embodiment of the present invention also conforms to the known bending wave theory similarly to the diaphragm 110 of the thin flat speaker device 1 according to the first embodiment of the present invention. The basic configuration is a panel-type speaker device that performs output reproduction based on this.
[0068]
On the other hand, the vibration applying section 220 of the thin flat speaker device 2 according to the second embodiment of the present invention also uses a known driving device (driver unit).
[0069]
Specifically, the vibration imparting unit 220 according to the second embodiment of the present invention is disclosed in Japanese Patent Application Laid-Open No. 2000-253492, entitled "Speaker Using Piezoelectric Vibration Body", and Japanese Patent Application Laid-Open No. 2001-320798, entitled A known driver unit utilizing a phenomenon called a piezoelectric effect is used similarly to the speaker described in "Diaphragm".
[0070]
The vibration applying section 220 according to the second embodiment of the present invention is a vibration applying section utilizing a phenomenon called a piezoelectric effect, and uses two ceramics. These two ceramics have a property called a piezoelectric effect. This is called a piezoelectric ceramic, and a substance having a piezoelectric effect is called a piezoelectric body. When electricity is applied to the crystal of the piezoelectric body, force and strain (expansion and contraction) are generated. That is, it has an inverse piezoelectric effect.
[0071]
Then, an acousto-electric signal output from an output terminal of a CD player, an MD player or the like is amplified by an amplifier and added to the piezoelectric ceramics, so that the piezoelectric body repeatedly expands and contracts according to the acousto-electric signal.
[0072]
The specific structure of the vibration applying section 220 is a structure in which the brass electrode plate 223 is sandwiched between two ceramics 221 and 222 that are piezoelectric bodies. The two ceramics 221 and 222 are wired so that the polarities are opposite (one expands and the other shrinks), and the brass electrode plate 223 deforms into an arc shape according to the magnitude of the acoustic electric signal. , The whole vibrates. Then, this vibration is transmitted to the diaphragm 210, emitted as sound, and becomes a speaker. Reference numeral 224 denotes a vibration transmission unit of the vibration applying unit 220 that supports and fixes the vibration applying unit 220 to the vibration plate 210 and adhesively fixes the vibration applying unit 220 to the vibration plate 210 for transmitting vibration. Reference numeral 225 denotes a weight damper weight that is adhesively fixed to the outer periphery of the brass electrode plate 223 to amplify and adjust vibration. Reference numeral 231 denotes a plug connected to an amplifier (not shown), and reference numeral 232 denotes wiring connecting the plug 231 to the ceramics 221 and 222 and the brass electrode plate 223.
[0073]
Note that, unlike the above-described embodiment, a thin flat speaker device in which the vibration applying unit 220 of the second embodiment is provided on the diaphragm 110 of the first embodiment may be used. A thin flat speaker device provided with the vibration applying unit 120 of the embodiment may be used.
[0074]
Subsequently, a bulletin board 3 according to a third embodiment of the present invention will be described. This bulletin board 3 is provided with a diaphragm 110 or 210 used in the first or second embodiment on the back side of a bulletin board.
[0075]
Specifically, as shown in FIG. 5, a diaphragm (back plate) 110 of the thin flat speaker device 1, and a light-transmitting bulletin board 310 that is arranged to face the diaphragm 110 at a predetermined interval and has a light-transmitting property. , A fluorescent lamp 320 interposed between the diaphragm 110 and the bulletin board 310, and a frame 330 for fixing the fluorescent lamp 320.
[0076]
The diaphragm 110 has the same structure as the diaphragm 110 used in the thin flat speaker device 1 according to the first embodiment, that is, a sandwich structure in which a core member 111 of closed-cell low-foam polyethylene is sandwiched between aluminum face members 112 and 113. have. The vibration applying section 120 of the thin flat speaker device 1 according to the first embodiment is adhesively fixed at a position slightly shifted from the center of the diaphragm 110, and an acoustic amplifier 130 and a fluorescent lamp 320 are provided at appropriate positions on the diaphragm 110. Is mounted.
[0077]
In addition, wiring in the bulletin board 3, jacks connected to external audio equipment, and the like are not shown.
[0078]
As shown in FIG. 6, the notice portion 310 is composed of a light transmission type notice panel 313 made of a photograph and the like, and support panels 311 and 312 made of a transparent acrylic plate for sandwiching the notice panel 313 in a sandwich shape. Become. In addition, a translucent light-reflective acrylic plate 321 for light diffusion is interposed between the posting section 310 and the fluorescent lamp 320.
[0079]
As shown in FIGS. 7 and 8, these components are formed around a bulletin board around a support frame 331 having a self-shaped cross section and a cover frame 332 having a U-shaped cross section. The frame 330 is fixed while maintaining a predetermined relative positional relationship. The support frame 331 has the entire periphery around the bulletin board, that is, the four sides are formed in a self-shaped cross section. The cover frame 332 inserted and fixed to the support frame 331 has three sides around the bulletin board formed in a U-shaped cross section. The other side is formed in an I-shaped cross section including only the front edge plate 335, and the side edge 335a of the one side is formed in an open shape.
[0080]
A folded back edge portion 332a of the U-shaped cross section cover frame 332 is inserted into a cover frame insertion groove 313b of a partially U-shaped cross section formed by the front end 313a of the self-shaped cross section of the self-shaped cross section support frame 313. The cover frame is inserted and fixed, the width of the cover frame insertion groove 332b and the thickness of the rear edge portion 332a are substantially the same, and the rear edge portion 332a is press-fitted into the cover frame insertion groove 332b. The support panel 311, the sign panel 313, and the support panel 312 are inserted and fixed in a sign panel insertion groove 332c formed by the cover frame 332 having a U-shaped cross section and the support frame 331 having a self-shaped cross section.
[0081]
Further, as shown in FIG. 8, a lid 334 that can be opened and closed via a hinge 333 attached to the frame 330 is provided on the other side around the bulletin board. The lid 334 is constantly urged in the closing direction by a spring 333a provided on the hinge 333, and is opened only when the notice panel 313 is replaced.
[0082]
The notice panel 313 can be inserted into the bulletin board 3 by slidingly inserting the support panels 311 and 312 sandwiching the notice panel 313 into the notice panel insertion groove 332c that appears when the lid 334 is opened.
[0083]
The assembling method will be described in more detail. As shown in FIGS. 6, 7, and 8, the rear end portion 332a of the cover frame 332 is inserted into the cover frame insertion groove 332b of the support frame 331. The opened side edge 335a of the cover frame 332 is inserted (press-fitted) from the side opposite to the lid 334 of the support frame 331 and attached.
[0084]
Then, as shown in FIG. 8, the lid 334 attached to the side of the support frame 331 via the hinge 333 is opened against the spring force (the urging force acting in the direction to close the lid), and the lid 334 is closed. Light-transmissive display panels 313 sandwiched between support panels 311 and 312 of acrylic plates are inserted from the side.
[0085]
When the size of the sign panel 313 is relatively large (for example, A1 plate or A0 plate) of A4 size or more, it is sufficient to directly fix the diaphragm 110 to the frame 330 with an adhesive (agent), screws, rivets, or the like. High sound pressure is obtained.
[0086]
On the other hand, when the size of the sign panel 313 is smaller than the A4 size such as the B5 size or the A5 size, the periphery of the diaphragm 110 is firmly attached by attaching an elastic body between the diaphragm 110 and the frame 330. Do not harden. The rigidity of the diaphragm 110 is necessary, but if the rigidity is increased more than necessary, vibration is suppressed. Therefore, when the diaphragm 110 is small, the rigidity is increased more than necessary by directly fixing it to the frame 330. Prevent it from getting lost.
[0087]
The insertion openings of the support panels 311 and 312 and the sign panel 313 may be at the upper part or the lower part.
[0088]
With the above configuration, in the bulletin board 3, since the aluminum surface material 113 of the diaphragm 110 faces the fluorescent light 320 side, the aluminum surface material 113 reflects the light of the fluorescent lamp 320, In addition, since the translucent light-reflective acrylic plate 321 for light diffusion is provided in front of the fluorescent lamp 320, the entire posting portion 310 is irradiated with flat and uniform indirect light, and transmitted through the back surface of the posting portion 310. The posting panel 313 such as a photograph of the posting section 310 is entirely raised by the indirect light, so that a viewer can have an aesthetic appearance. Further, since there is no projection such as a lighting light outside the bulletin board 3, the appearance is simple and the handling is excellent. Further, since the diaphragm 110 of the thin flat speaker device 1 according to the first embodiment of the present invention is used for the back plate of the bulletin board 3, sound is emitted from the back of the bulletin board 3 and the sound of the diaphragm 110 is emitted. Since there is no sign panel 313 on the sound surface, a good sound can be generated, and the advertising effect can be enhanced. In addition, since the thin flat speaker device 1 according to the first embodiment of the present invention is lightweight, strong, and excellent in dust resistance, the bulletin board 3 using the thin flat speaker device 1 as a back plate is required to have weather resistance. It is excellent in outdoor environment and suitable for portability, and can be easily transported and installed at a desired place.
[0089]
Note that, unlike the above-described embodiment, the same effect can be expected even when the thin flat speaker device 2 according to the second embodiment is used for the back plate.
[0090]
Subsequently, a case 4 according to the fourth embodiment of the present invention will be described. This case 4 uses the thin flat speaker device 1 according to the first embodiment for at least a part of the case 4 made of aluminum.
[0091]
That is, the case 4 is composed of a thin flat speaker device 1 that is a part of an aluminum case or a trunk used for storing and carrying a notebook computer peripheral device such as a notebook computer or an AC adapter, or a set of beauty tools. It was done.
[0092]
Specifically, as shown in FIG. 9, the case 4 includes a case body 410, a lid 420, a hinge 430 (FIG. 10) for connecting these to be able to open and close, and a case body 410 so that the case 4 can be turned upside down. The thin flat speaker according to the first embodiment includes a handle 440 fixed via a driving shaft 410a and a hook 450 for locking the lid 420 to the case body 410, and a front plate 423a of an outer plate 423 of the lid 420 according to the first embodiment. It is composed of the diaphragm 110 of the device 1. The side plate 423b of the outer plate 423 of the lid 420 is formed by bending and extending the front plate 423a formed by the diaphragm 110. The acoustic amplifier 130 is mounted inside the front plate 423a of the lid 420 composed of the diaphragm 110 of the thin flat speaker device 1. Reference numeral 120 denotes a vibration applying portion, 424 denotes an edge reinforcing frame for reinforcing the edges of the outer plates 423 and 425, and 426 denotes a corner reinforcing piece for reinforcing the corners of the outer plates 423 and 425.
[0093]
As shown in FIG. 10, a lid inner bottom plate 421 is provided inside the lid 420 (shown by a two-dot chain line in the figure). Between the outer plate 423 constituted by the diaphragm 110 and the inner bottom plate 421, there is a lid inner space 427 in which the acoustic amplifier 130 and the vibration applying unit 120 are stored. Further, urethane 422 for protecting stored items is attached to a peripheral wall inside the lid inner bottom plate 421, and formed inside the case body 410 according to the outer shape of the stored items, as shown in FIG. A urethane 412 formed with a storage recess 412a for protecting stored items is fitted therein. In FIG. 11, the illustration of the edge reinforcing frame 424, the corner reinforcing piece 426, and the hook 450 of the outer plates 423, 425 is omitted.
[0094]
Further, in the case 4, both the outer plate 423 of the lid 420 and the outer plate 425 of the case main body 410 are made of a low-foam polyethylene with closed cells, similarly to the diaphragm 110 of the thin flat speaker device 1 according to the first embodiment. It is formed of a laminated composite plate of aluminum and low-foamed polyethylene in which aluminum face materials are joined to the front and back of the core material. Further, a thin flat speaker device according to the first embodiment is provided in which the front plate 423a of the outer plate 423 of the lid 420 is the diaphragm 110. Thus, at least a part of the case made of the laminated composite plate of aluminum and low-foamed polyethylene is constituted by the thin flat speaker device 1 of the first embodiment, which is lightweight, strong and excellent in dust resistance despite the case with the speaker. It can be used for publicity activities in outdoor environments where weather resistance is required, and is suitable for portability and can be taken anywhere.
[0095]
As an example of the usage mode, it is conceivable to receive music signals from a personal computer and play music or voice from a personal computer storage case. Alternatively, the sound for the advertisement may be played by connecting a sound reproducing device that records the commentary or the advertisement during the demonstration of the beauty treatment salon or make-up and the beauty treatment tool storage case that stores the beauty treatment tool.
[0096]
When the front plate 423a of the outer plate 423 of the lid 420 is the diaphragm 110, the lid 420 of the case may be used as a speaker with the lid closed, or may be used as a speaker with the lid 420 opened.
[0097]
Further, as shown by a two-dot chain line in FIG. 10, the lid inner bottom plate 421 can be used as the diaphragm 110. In this case, the lid inner bottom plate 421 is constituted by the diaphragm 110 of the thin speaker device 1 according to the first embodiment, and the acoustic amplifier 130 is mounted on the outer plate 423 side of the lid inner bottom plate 421. Note that what is indicated by reference numeral 120 indicated by a two-dot chain line in FIG. 10 is a vibration imparting section of the thin speaker device 1. When the lid inner bottom plate 421 is the diaphragm 110, the lid is used as a speaker with the lid 420 of the case opened.
[0098]
Further, the vibration plate 110 may be provided on both sides of the outer plate 423 and the lid inner bottom plate 421. In this case, one of the vibration applying parts 120 is attached to the diaphragm 110 forming the outer plate 423, and the other is attached to the diaphragm 110 forming the lid inner bottom plate 421. Even in such a case, interference can be prevented by arranging the vibration applying unit 120 and the acoustic amplifier 130 at appropriate positions.
[0099]
Note that, unlike the above embodiment, when the thin flat speaker device 2 according to the second embodiment is used for the outer plate 423 or the lid inner bottom plate 421, the weight is slightly inferior to the above case, A case excellent in strength can be obtained. In this case, the outer plate 423 is formed by the diaphragm 210, and the lid inner bottom plate 421 is formed by the diaphragm 210.
[0100]
Subsequently, a self-supporting flat speaker device 5 according to a fifth embodiment of the present invention will be described. The self-supporting flat speaker device 5 is a thin flat speaker device placed on a floor, a rack, or a table.
[0101]
As shown in FIG. 12, the self-supporting flat speaker device 5 is connected to the thin flat speaker device 1 of the first embodiment, a frame 510 directly attached around the thin flat speaker device 1, and a lower portion of the frame 510. And a supporting base 520. As shown in the cross-sectional view of FIG. 13, the support 520 is provided with an amplifier 530, and can be connected to an external audio device 540 such as a CD or MD via a jack 531 and a connection cord 541. Reference numeral 120 denotes a vibration applying unit, and reference numeral 120a denotes a wiring connecting the vibration applying unit 120 and the amplifier 530.
[0102]
Then, the size of the diaphragm 110 becomes a relatively large sound emitting surface (diaphragm) of A4 size or more, for example, A4 size, a size of two A4 sizes connected in the longitudinal direction, A3 size, A3 size. In the case of two sheets in the longitudinal direction, A2 size, A1 size, and A0 size, a frame 510 is fixed around the diaphragm 110 by bonding or press-fitting, as shown in the frame sectional view of FIG. The frame 510 is joined and assembled into a frame shape by using an extruded aluminum material, but a resin may be used.
[0103]
In the case of a sound-emitting surface (diaphragm) that is smaller than the A4 size, elongated vertically, or elongated horizontally, it is attached between the diaphragm 110 and the frame 510 via an elastic body. (See the cross-sectional view of the frame of another embodiment shown in FIG. 18)
On the other hand, in the case of a vertically or horizontally elongated one (for example, a size in which two A5 plates are connected in the longitudinal direction), the longitudinal end is directly fixed to the diaphragm 110 and the frame 510 by bonding or the like, and the short end is It is attached between the diaphragm 110 and the frame 510 via an elastic body.
[0104]
In the case of the self-standing flat speaker device according to the present embodiment, the support 520, the diaphragm 110, and the frame 510 are divided so that the support 520, the diaphragm 110, and the frame 510 can be divided into smaller packages. A support connection member 521 is provided between the two. A concave portion and a convex portion are provided in the lower portion of the frame 510, the support connecting member 521, and the support base 520, and are inserted and fixed so that the portion can be detached.
[0105]
By changing the length of the support connection member 521, the height of the device from the floor or tabletop may be made variable.
[0106]
Further, unlike the above-described embodiment, the same effect can be expected by attaching the frame 510 and the support 520 or the support connection member 521 to the thin flat speaker device 2 according to the second embodiment.
[0107]
Next, a display device 6 according to a sixth embodiment of the present invention and a wall-mounted flat speaker device 7 according to a seventh embodiment shown in FIG. 15 will be described. The display device 6 and the wall-mounted flat speaker device 7 are used in a home theater or an audio room.
[0108]
Behind this, in home theaters, demand for thin flat display devices such as plasma displays and liquid crystal displays has been gaining momentum as space-saving video equipment, and the need for space-saving sound has been increased by increasing the number of surround sound channels. There is a need for good speakers.
[0109]
To meet the demand, a thin flat speaker device 1 according to the present invention is used to provide a display device 6 having a speaker unit integrally provided on the side of the display and a wall-mounted flat speaker device 7 provided on a wall of a room. .
[0110]
First, a display device 6 according to a sixth embodiment, which includes a thin display and a thin flat speaker device 1, will be described.
[0111]
As shown in the cross-sectional view of FIG. 16, the display device 6 does not transmit a frame 621 formed on both sides of the thin display 610 so as to be fitted to the display 610 and vibration of a speaker to the display 610. The thin flat speaker device 1 of the first embodiment is attached to a display 610 by attaching the diaphragm 110 of the thin flat speaker device 1 of the first embodiment via an elastic body 630.
[0112]
The frame 621 also serves as a terminal cover for the diaphragm 110.
[0113]
In addition, the periphery of the diaphragm 110 of the thin flat speaker device 1 other than those corresponding to both side surfaces of the thin display 610, as shown in the frame sectional views of FIGS. A frame 622 is fixed around the periphery by bonding or press fitting.
[0114]
The periphery of the diaphragm 110 of the thin flat speaker device 1 other than those corresponding to both side surfaces of the thin display may be fixed by a frame 624 via an elastic body 623 as shown in FIG. Reference numeral 120 denotes a vibration applying unit, 640 denotes a display support, and 641 denotes support legs.
[0115]
Further, unlike the above-described embodiment, the thin flat speaker device 2 according to the second embodiment may be used as the thin flat speaker device used for the display device 6.
[0116]
Next, a wall-mounted flat speaker device according to the seventh embodiment (again, see FIG. 15) that can be mounted on a wall will be described.
[0117]
As shown in the cross-sectional views of FIGS. 19 and 20, the wall-mounted flat speaker device 7 according to the present embodiment includes the thin flat speaker device 1 according to the first embodiment and the diaphragm 110 of the thin flat speaker device 1. A frame 710 attached to the periphery is provided, and the frame 710 extends from the holding portion 711 and the holding portion 711 for holding the end of the diaphragm 110 of the thin flat speaker device 1, and is attached to the wall by overlapping with the wall. It has a wall mounting extension 712 and is formed in a U-shaped cross section. In addition, an elastic body 713 for absorbing vibration is interposed between the holding portion 711 and the diaphragm 110 of the thin flat speaker device 1. Further, a vibration absorbing elastic body 714 is also fixed to the wall mounting extending portion 712, and the thin flat speaker device 1 is mounted on the wall via the vibration absorbing elastic bodies 713 and 714. .
[0118]
In addition, 120 is a vibration giving part.
[0119]
The vibration absorbing elastic members 713 and 714 allow the thin flat speaker device 1 to vibrate efficiently to emit good sound and prevent extraneous vibration from being transmitted to the wall.
[0120]
Note that the cross-sectional views of FIGS. 19 and 20 are examples provided on a wall 720 of a room having acoustic characteristics (sound field) and soundproofing functions. Specifically, the thin flat speaker device 1 according to the first embodiment is mounted on a sound field panel 721 and a laminated wall 720 including a sound insulation layer 722, a vibration cut layer 723, a sound absorption layer 724, a vibration cut layer 725, and a sound insulation layer 726. Is attached. In addition, reference numeral 730 denotes a recess provided in the wall 720 so as to prevent the thin flat speaker device 1 from protruding into the room from the wall 720 of the room. Is attached.
[0121]
In the wall-mounted flat speaker device 7 according to the present embodiment, the recess 730 in which the thin flat speaker device 1 is provided on the wall 720 via the wall-mounted extending portion 712 of the frame 710 having a U-shaped cross section is also provided. And can be attached so as not to protrude from the wall 720, so that it is excellent not only in terms of acoustic characteristics but also in terms of beauty.
[0122]
Further, the frame 710 attached around the diaphragm 110 of the thin flat speaker device 1 does not have the vibration absorbing elastic body 713 interposed between the holding portion 711 of the frame 710 and the periphery of the diaphragm 110. Alternatively, they may be directly fixed by bonding or press fitting.
[0123]
Note that, unlike the above-described embodiment, the thin flat speaker device 2 according to the second embodiment may be a wall-mounted flat speaker device in which the frame 710 is attached to the diaphragm 210.
[0124]
Subsequently, a case 810 according to the eighth embodiment of the present invention will be described. Note that, with regard to the drawings, FIGS. 21, 22, and 23 correspond to the case 810 of the eighth embodiment.
[0125]
A case 810 according to the eighth embodiment of the present invention carries a peripheral device of a notebook computer, such as a notebook computer or an AC adapter, or a set of beauty treatment tools, similarly to the case 4 according to the fourth embodiment. In addition to the case, the thin flat speaker device 1 is mounted on a case for carrying a set of equipment for listening to or playing music, such as a CD player or a music CD, so that the user can easily listen to or play music at the destination as needed. Is built in.
[0126]
Hereinafter, a specific structure of case 810 will be described. Note that the same components as those of the thin flat speaker device 1 according to the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
[0127]
As shown in FIG. 21, the case 810 has a through-hole 812 through which sound waves generated in the case 810 are formed in at least a part of an outer plate forming an outer surface 811 of the case 810 made of aluminum or the like. The thin flat speaker device 1 according to the first embodiment (see FIG. 22) is provided facing the inside of the through hole 812. The thin flat speaker device 1 is detachably attached to the case 810.
[0128]
As shown in FIGS. 21 and 22, the case 810 includes a case body 813, a lid 814, a hinge 815 for opening and closing the lid 814, and a pivot shaft 816 that can be turned upside down to the case body 813. And a hook 818 for locking the lid 814 to the case body 813.
[0129]
In addition. 820 is an outer plate of the case body 813, and 821 is an outer plate of the lid 814.
[0130]
At a corner of an outer plate 821 forming an outer surface of the lid 814, a large number of through holes 812 for passing sound waves are formed through the outer plate 821.
[0131]
As shown in FIG. 22, the diaphragm 110 of the thin flat speaker device 1 according to the first embodiment faces the large number of through-holes 812, as shown in FIG. Is arranged.
[0132]
A vibration imparting section 120 is joined and fixed inside the diaphragm 110, that is, on the back surface.
[0133]
A support substrate 822 is detachably attached to the inside of the lid 814, that is, the back surface thereof, by screwing it with screws.
[0134]
A battery case 831 for accommodating a battery 824 as a speaker power supply, an audio amplifier 832, a jack 829 for inserting a plug from a CD player or the like (not shown), an external AC (AC) 100V power supply are provided on the support substrate 822. An AC power input terminal 833 for connection, an external microphone input terminal 834 for connecting to an external microphone, a volume control section 825, a volume control knob 826, a pilot lamp 827, and a diaphragm 110 (see FIG. 22) are attached.
[0135]
The diaphragm 110 is attached to a support substrate 822 via a diaphragm support bracket 835 and a support elastic body 836.
[0136]
In addition, a sound emission hole 847 is opened in a position corresponding to the large number of opened holes 812 in the support substrate 822. Then, the sound wave goes out of the lid 814 through the sound emission hole 847 and the through hole 812. Note that reference numeral 822c denotes an edge of the sound emission hole 847 of the support substrate 822.
[0137]
A volume control knob 826 also serving as an ON / OFF switch of the speaker is mounted so as to protrude out of the lid 814, and a volume control section 825 having the volume control knob 826 is fixed facing the inside of the lid 814, The sound amplifier 832 is connected by wiring. A volume control shaft 826a protrudes from the volume control knob 826, and rotates together.
[0138]
The pilot lamp 827 is turned on when the speaker is turned on by turning the volume control knob 826, and turned off when the speaker is turned off. The volume control knob 826, pilot lamp 827, AC power input terminal 833, and external microphone input terminal 834 are mounted on a mounting base 838 fixed to a support substrate 822. The upper and lower bases of the mounting base 838 are in contact with an outer plate end 838a having a U-shaped cross section into which an outer plate 821 is fitted. The outer plate end 838a is connected to the edge reinforcing frame 840 via a fixing piece 838b, and the lid side opening. It is attached to the edge reinforcing frame 842 by rivets.
[0139]
The left and right ends of the mounting base 838 are in contact with the edge reinforcing frame 840 and the lid-side opening edge reinforcing frame 842.
[0140]
Note that 828 partially shows the wiring, 846 is a spacer of a resin foam that closes the gap between the support substrate 822 and the outer plate 821 of the lid 814, and 826a is a volume control axis ( See FIG. 22).
[0141]
On the inside of the vibration applying section 120, a cover 819 for preventing a stored object stored in the case 810 from hitting the vibration applying section 120, the diaphragm 110, the audio amplifier 832, the battery 824, the wiring 828, etc. It is detachably attached to the support substrate 822 with screws or other fixing parts via 819a (see FIG. 23). In addition, an electric wire 129a extends from the acoustic amplifier 832. The cover 819 is formed in an L-shape when viewed from the end. A part of the cover 819 is a foamed resin such as urethane which holds the battery 824 at a position corresponding to the battery 824 when attached to the support substrate 822 and also serves as a cushion. The pressing member 823 made of is bonded.
[0142]
When the cover 819 is removed, the speaker including the diaphragm 110, the vibration applying unit 120, and the like, the battery 824, the sound amplifier 832, and the like are exposed, and these can be inspected and the battery 824 can be replaced. .
[0143]
On the other hand, reference numeral 840 denotes an edge reinforcing frame for joining and reinforcing the edges of the outer plates 820 and 821, and 841 and 842 project to one side so that when the lid 814 is closed to the case main body 813, they come into contact with each other so as to be fitted and adhered. And a lid side opening edge frame in which a concave groove 842a (see FIG. 22) is formed on the other side. The opening edge reinforcing frames 841 and 842 also function as reinforcing frames for the opening edges of the case body 813 and the lid 814.
[0144]
Reference numeral 843 denotes a corner connection piece that connects and reinforces the corners of the outer plates 820 and 821, the edge reinforcing frame 840, and the opening edge reinforcing frames 841 and 842. Reference numerals 849 denote legs provided at four corners at the lower end of the case 810.
[0145]
The bottom of the case body 813 and the lid 814 and the inner walls around them are covered with a foam resin such as urethane or a lining such as felt or nonwoven fabric for protecting the storage items.
[0146]
The hinge 815 is formed with hinge stopper surfaces 815a and 815b that are opposite surfaces of the mail and the female. The hinge stopper surfaces 815a and 815b facing each other are separated when the lid is closed, come into contact with the lid when the lid is opened, and serve as a stopper, and support the lid 814 on the case body 813 with the lid 814 opened. When the lid 814 is opened, the lid is kept at a position where the opening slightly exceeds 90 °.
[0147]
On the other hand, on the inner side of the case of the outer plate 821, a pair of U-shaped cross-section rails (not shown) are opposed to each other so as to partially sandwich the through hole 812, and a seal plate 837 guided by the rail is slidable. The through hole 812 is attached from the inside of the case as necessary. The space AP shown in FIG. 22 is a guide space into and out of which the seal plate 837 enters and exits. A handle 837a for easily sliding the seal plate 837 is attached to the seal plate 837. The seal plate 837 closes the through hole 812 when the speaker is not used, so that intrusion of rainwater, dust, and the like can be prevented.
[0148]
Further, the case 810 has a core member made of low-foam polyethylene with closed cells, similarly to the diaphragm 110 of the thin flat speaker device 1 according to the first embodiment, both the outer plate 820 of the case body 813 and the outer plate 821 of the lid 814. It is formed by a laminated composite plate of aluminum and low foamed polyethylene in which aluminum 111 and front and back surfaces 112 and 113 of the core 111 are joined.
[0149]
Further, a through-hole 812 for passing sound waves is provided on the outer plate 821 of the lid 814, and the diaphragm 110 is disposed so as to face the through-hole 812. Therefore, the lid 814 can be used as a speaker regardless of whether the lid 814 is closed or opened. be able to.
[0150]
Further, the support substrate 822 can be removed from the lid 814 as described later.
[0151]
As is clear from the above configuration, the case 810 according to the eighth embodiment is such that the speaker including the diaphragm 110, the vibration imparting unit 120, the acoustic amplifier 832, the battery case 831, and the jack 829 are directly connected to the support plate 822. , A volume control knob 826, a volume control knob 826, a pilot lamp 827, an AC power input terminal 833, and an external microphone input terminal 834 are mounted on the support substrate 822 via a mounting base 838.
[0152]
This means that the speaker and all the components for operating the speaker are attached to the support substrate 822.
[0153]
Among these, the volume control knob 826, the pilot lamp 827, the AC power input terminal 833, and the external microphone input terminal 834 project (expose) from the lid side wall outer plate to be operable from outside the case.
[0154]
Note that the jack 829 is provided on the lower side (lower end) of the support substrate 822, but the jack 829 may be provided to protrude from the lid side wall outer plate to the outside similarly to the above, or the lower end of the support substrate 822 may be provided. And two portions protruding from the lid side wall outer plate.
[0155]
A mounting base 838 to which the volume control knob 826, the pilot lamp 827, the AC power input terminal 833, and the external microphone input terminal 834 are mounted is fixed to a side surface of the support substrate 822, and the mounting base 838 is connected to a side wall of the lid 814. The mounting plate is opened so as to fit into the mounting base exposing opening 839 formed in the outer plate 821.
[0156]
As described above, the opening holes 839 for exposing the mounting base have left and right opening edges formed by the edge reinforcing frame 840 of the lid 814 and the lid side opening edge reinforcing frame 842, and upper and lower opening edges forming the side wall outer plate of the lid 814. The outer plate 821 is surrounded by an outer plate end 838a having a U-shaped cross-section into which the outer plate 821 is fitted and opened.
[0157]
The outer plate end 838a is rivet-fixed to the edge reinforcing frame 840 of the lid 814 and the lid-side opening edge reinforcing frame 842 via the fixing piece 838b.
[0158]
On the other hand, the support substrate 822 is screwed between the side wall outer plate 821 of the lid 814 and a screw. In this case, a screw may be tightened from the outside of the side wall outer plate 821 of the lid 814 to a screw portion provided on the support substrate 822, and conversely, a screw may be tightened from the side of the support substrate 822 to the side wall outer plate 821 of the lid 814. You may do it.
[0159]
Reference numeral 822b denotes a side wall outer plate fixing portion integrally formed on a side portion of the support substrate 822, abuts against the side wall outer plate 821 of the lid 814, and is fixed to the side wall outer plate 821 by screws.
[0160]
By removing the screws, the support substrate 822 is separated from the outer plate 821, so that the mounting base 838 fixed to the support substrate 822 and the volume control knob 826 mounted on the mounting base 838 are connected to the side plate of the lid 814. Then, all the components attached to the support substrate 822 can be removed from the side wall outer plate 821 of the lid 814 by moving the support substrate 822 laterally inside the lid 814.
[0161]
On the other hand, when mounting the support substrate 822 to which all the components are mounted, the support substrate 822 is laterally moved so that the mounting base 838 is inserted into the mounting base exposing opening 839, and the mounting base 822 is inserted into the mounting base exposing opening 839. The mounting base 838 is fitted, and screws are fixed between the side wall outer plate fixing portion 822b of the support substrate 822 and the side wall outer plate 821 of the lid 814.
[0162]
After the support substrate 822 is removed and the speaker, the volume control knob 826, and the like are removed, a hole filling plate (not shown) having a hole filling protrusion matching the mounting base exposure opening hole 839 is attached to the support substrate 822. It is fixed to the side wall outer plate 821 of the lid 814 with the fixed screw. Thus, the opening formed by removing the mounting base 838 can be closed and used only as the case 810.
[0163]
That is, the speaker including the vibration plate 110, the vibration applying unit 120, and the like attached to the support substrate 822, the acoustic amplifier 832, the battery case 831, the volume control unit 825, and the like are removed when the speaker is not used for a long period of time. By using it only, the storage space of the case can be expanded and used. In addition, it can be used with a reduced weight.
[0164]
Further, as described above, the diaphragm 110, the case body 813, and the outer plates 820, 821 of the lid 814 are made of the same material (quality), so that the material management is facilitated without increasing the types of materials and the processing method. The processing equipment can be unified and provided at a low cost.
[0165]
Further, the speaker device can be easily replaced with a new one, a different specification and a different type. Further, when the speaker or the like breaks down or is subjected to maintenance, the speaker including the diaphragm 110, the vibration imparting unit 120, and the support substrate 822 having the volume control knob 826 and the like may be removed and replaced with a new one. You can send it to the station for inspection and repair.
[0166]
Further, when the speaker including the diaphragm 110 and the vibration applying section 120 is detached from the support substrate 822 to disturb the entry of rainwater or the like into the case 810, the seal plate 837 is slid and the through hole 812 is disengaged. Should always be closed.
[0167]
In the case 810 having the above configuration, similarly to the case 4 according to the above-described fourth embodiment, it is conceivable that music or voice is played as a personal computer storage case by receiving an acoustic signal from a personal computer.
[0168]
Alternatively, the audio for commentary and advertising can be output from the case of the esthetic and make-up tool storage case that was connected to the audio playback device that recorded the commentary and advertisement during the demonstration of the esthetic and make-up. You may make it flow.
[0169]
Alternatively, the music may be played by connecting to a CD player stored in a case and brought in, for example, a plurality of cases 810 placed at one corner of a hall borrowed for a dance practice hall or at four corners of the hall.
[0170]
As a modification of the case according to the above-described eighth embodiment, when it is not desired to mix rainwater or the like from the through-hole 812, a through-hole is formed in the cover 819 instead of opening the through-hole 812 on the outer plate 821 side. The vibration plate 110 is arranged so as to face the through hole provided in the cover 819, and the vibration applying section 120 is joined and fixed to the outside of the vibration plate 110, that is, to the outer plate 821 side of the lid 814. Structure is conceivable.
[0171]
In this case, the lid 814 is opened when the speaker is used.
[0172]
In addition, a through hole through which the sound wave passes is opened in the outer plate 821 of the lid 814 and the cover 819, and a sound wave from the diaphragm 110 is opened in the through hole 812 and the cover 819 opened in the outer plate 821 of the lid 814. When the sound is emitted from the through hole and the lid 814 is opened, sound may flow from both the front surface and the rear surface of the lid 814.
[0173]
Further, a through hole 812 is opened in the upper center of the outer plate 821 of the lid 814, that is, in the vicinity of the handle 817 when the lid 814 is closed, and the diaphragm 110, the vibration imparting unit 120, the acoustic amplifier 832, the battery case 831, etc. When the case 810 has no storage items and the inside of the case is empty, the left and right weights around the handle 817 may not be biased to facilitate holding.
[0174]
The thin flat speaker device 2 according to the second embodiment is used as a diaphragm or the like, and the outer plate 820 of the case body 813 and the outer plate 821 of the lid 814 are used as the diaphragm 210 of the thin flat speaker device 2 according to the second embodiment. The same material (quality) may be used. In this case, the case is slightly inferior to the case 810 in terms of weight reduction, but the case can be excellent in strength.
[0175]
When the cosmetics are stored in the case 810 and the case 810 is used for cosmetics sales, the container filled with the cosmetics is easily stored and taken out, and an inner lid, a band, or a partition for holding the container is provided. As a material forming the outer plates 820 and 821 of the lid 814, a core member 111 made of closed-cell low-foam polyethylene and a mirror-finished plate or a mirror-finished aluminum thin plate or stainless thin plate 112 on the front and back of the core 111 , 113 or a laminated composite plate of mirror-finished metal and low-foam polyethylene, so that both the inner and outer surfaces or the inner surface of the lid 814 can be used as a mirror. When only the inner surface can be used as a mirror, leather or cloth of various colors is attached to the outer surface of the lid 814, and the appearance of the case 810 is a case of color leather or cloth. be able to.
[0176]
Further, all the outer plates 820 and 821 of the case body 813 and the lid 814 are formed of the above-described laminated composite plate, so that all surfaces of the case body 813 and the lid 814 can be used as mirrors. By selecting a surface selected from all the surfaces as a mirror and pasting leather or cloth on the other surface as described above, the degree of freedom in design can be increased while using the outer plates 820 and 821 as a mirror. Then, the case 810 is used as a cosmetic storage case, and can be used to play a sound, a sound for a commentary or an advertisement, or a music such as a BGM for a demonstration of a beauty treatment or make-up at the time of sales. An improved cosmetic sales case 810 can also be provided.
[0177]
Subsequently, a case 850 according to the ninth embodiment of the present invention will be described. 24, 25, and 26 correspond to the ninth embodiment.
[0178]
In this case 850, as shown in FIG. 24, at least a part of an outer plate 821 forming an outer surface 851 of the case 850 made of aluminum or the like is provided with a through hole 852 through which sound waves generated in the case 850 pass. The sound source section facing the inside of the through-hole 852 includes a cone-shaped speaker device 853 (see FIG. 26) instead of the diaphragm 110 and the vibration imparting section 120 which are the sound source sections of the above-described eighth embodiment. Reference).
[0179]
The case 850 itself has sufficient strength. This is because each edge reinforcement frame and each outer plate are firmly connected to each other. Specifically, the edge reinforcing frame 840 and the outer plate 821 are firmly fixed by caulking 840a. That is, since the outer plate 821 has a core 111 made of resin and front and back surfaces made of aluminum thin plates 112 and 113 and an edge reinforcement frame 840 made of aluminum, the joint between the edge reinforcement frame 840 and the outer plate 821 is pressed from the inside of the case with a die or the like. Then, the joint is caulked, and both are firmly connected. Further, the edge reinforcing frame 840 has different lengths in the cross-sectional direction between the inner side and the outer side, and the outer side is longer than the inner side. In addition, they are not visible from the outside of the case and do not impair the appearance of the case. In addition, the opening edge reinforcing frames 841 and 842 on the case body side and the lid side and the outer plates 820 and 821 are rivet-fixed via a corner piece, and the space therebetween is also firmly connected.
[0180]
The through hole 852 is formed in a circular shape as a whole so as to correspond to the cone portion of the cone type speaker device 853. Further, unlike the eighth embodiment, the volume control knob 826 and the pilot lamp 827 are provided on the outer plate 821 on the handle 817 side. An external microphone input terminal 834 and an AC power input terminal (power terminal for AC 100 V) 833 are provided on the side outer plate 821.
[0181]
The hinge 815 has hinge stopper surfaces 815a and 815b which are opposite surfaces of the mail and the female of the hinge 815 as in the eighth embodiment, and the angle is slightly increased by 90 ° with the lid 814 opened. It keeps the position beyond.
[0182]
In the case of the ninth embodiment, the cone-type speaker device 853, the sound amplifier 832, the battery case 831, the volume controller 825, and the pilot lamp 827 are directly mounted on the support substrate 822. On the other hand, an AC power input terminal 833, an external microphone input terminal 834, and a pin terminal connector 828a connected to a socket (not shown) forming a connector are attached to a side wall outer plate 821 of the lid 814.
[0183]
A wiring 855 extending to the AC power input terminal 833, the external microphone input terminal 834, and the pin terminal connector 828a is provided inside the protective cover 828b fixed to the outer plate 821 of the lid 814.
[0184]
This protective cover 828b is used when a support substrate 822 on which a cone-shaped speaker device 853, an acoustic amplifier 832, a battery case 831, a volume control unit 825, a pilot lamp 827, and a jack 829, which will be described later, are detached, is removed from the case 850. The AC power input terminal 833, the external microphone input terminal 834, the pin terminal connector 828a, and the wiring 855 from these terminals to the pin terminal connector 828a remaining in the lid 814 of the case 850 are assumed to be accommodated in the case 850. This is to protect it from contact.
[0185]
The volume control knob 826 is provided so as to be able to be inserted and removed from a volume control axis (axis of the volume control knob 826) 826 a protruding from the volume control section 825. The volume control shaft 826a protrudes from the outer plate 821 of the lid 814, and a volume control knob 826 inserted and fixed to the volume control shaft 826a is exposed outside the outer plate 821 of the lid 814. It should be noted that four ridges 826b and corresponding key groove-shaped slits are provided at equal intervals in the circumferential direction of the volume control shaft 826a and the circumferential direction of the volume control knob 826, and they are fitted together. As a result, the volume control knob 826 and the volume control shaft 826a are detachable and rotate integrally with each other. However, instead of the ridges 826b and the key groove-shaped slits, a number of mountain-shaped projections are formed at regular intervals along the axial longitudinal direction on the volume control shaft 826a over the entire outer periphery. A slit corresponding to this projection may be formed over the entire inner circumference, and the two may be fitted together and rotated together.
[0186]
The volume control section 825 having the volume control axis 826a and the pilot lamp 827 are attached to the support substrate 822 so that the support substrate 822 can be removed and removed.
[0187]
On the other hand, the pilot lamp 827 is exposed to the outside of the outer plate 821 of the lid 814, that is, to the outside of the case from a hole formed in the outer plate 821 of the lid 814.
[0188]
A concave groove 842a (see FIG. 25) is formed in the lid side opening edge frame 842, and a convex portion 841a is formed in the case body side opening edge reinforcing frame 841, so that when the lid 814 is closed, the lid 814 is closed. It comes into close contact with the case body 813.
[0189]
On the other hand, a cutout 822a of the support substrate 822 is provided at a position corresponding to the protective cover 828b of the support substrate 822. By providing the notch 822a, a gap (see FIG. 26) having a dimension A-A of a movement amount + α of the volume adjustment shaft 826a and the pilot lamp 827 is provided, and a support substrate 822 described later is pushed down to adjust the volume. When the shaft 826a and the pilot lamp 827 are moved inside the lid 814 and pulled out from the outer plate 821 of the lid 814, the support substrate 822 does not come into contact with the protective cover 828b. Then, when the speaker unit including the cone-type speaker device 853, the acoustic amplifier 832, the battery case 831, the volume control unit 825, the volume control shaft 826a, and the pilot lamp 827 attached to the support substrate 822 is removed from the case 850, First, the cover 819 to which the screws are fixed is removed from the support substrate 822 to expose the wiring and the connector, disconnect the pin terminal connector 828a of the connector from the socket (not shown), and project from the outer plate 821 of the lid 814. Pull the volume control knob 826 out of the volume control shaft 826a and remove it. Then, the screw fixing the screw between the support substrate 822 and the lid side wall outer plate 821 is removed, the support substrate 822 is moved downward, and the volume control shaft 826 a and the pilot lamp 827 are moved from the outer plate 821 of the lid 814 to the lid. After being pulled inside the inside of the lid 814, the support substrate 822 is moved laterally inside the lid 814 to complete. Thus, also in the ninth embodiment, the work of removing the speaker and the like can be easily performed.
[0190]
After removing the speaker and the like together with the support substrate 822, the holes of the volume control shaft 826a and the pilot lamp 827 are surely covered by inserting a grommet (not shown) which is a hole filling member such as rubber (rubber). Can be.
[0191]
Further, by fixing the cover 819 again to the support substrate 822 removed together with the speaker with screws, the exposure of the cone type speaker device 853, the sound amplifier 832, the volume control unit 825, the wiring, etc. is covered, and these are stored. Sometimes it is possible to protect them.
[0192]
At this time, the volume control knob 826 is inserted into the volume control shaft 826a and stored.
[0193]
FIG. 25 shows a state in which a personal computer PC, a mobile phone (or remote controller) SP, and an AC power adapter AD are accommodated in a case 850, and a lid 814 of the case 850 is opened. Inside the case main body 813 of the case 850, a member 871 made of urethane foam for device fixing and device protection is fitted, and a PC main body housing recess 871a, a mobile phone housing recess 871b, and an AC power adapter housing recess 871c are put in place. Is formed. The PC main body accommodating recess 871 a is formed with a lid opening / closing operation concave portion (gap) 871 d at a position corresponding to the lid opening / closing lock portion HL and the side of the accommodated personal computer PC, and the personal computer PC is accommodated in the case 850. In this state, a concave portion (gap) 871e for connecting the connection code CB to the personal computer input / output terminal is formed. Thereby, the lid opening / closing lock portion HL of the personal computer PC can be easily operated to open / close the lid of the personal computer PC, and the personal computer PC can be connected to the acoustic amplifier 832 of the lid 814 via the connection cord CB. Becomes possible.
[0194]
Further, the AC power supply input terminal 833 and the external microphone input terminal 834 provided on the side wall outer plate 821 of the lid 814 can be used even when the lid is opened as shown in the figure, thereby improving the usability of the case 850. Furthermore, when the lid 814 is opened, the volume control knob 826 and the pilot lamp 827 provided on the outer plate 821 above the lid 814 are located significantly above the mounting surface of the case 850, and the volume control and the speaker It is easy to check the operation.
[0195]
On the other hand, inside the lid 814, a storage portion 872 for storing a large notebook, a document, or the like is provided via a holding belt 872a while maintaining an appropriate opening degree. Further, a pen holder 873, various cases such as a CD and a floppy (registered trademark), and two storage portions 874 and 875 used as card holders are further provided on the side surface of the storage portion 872, thereby improving convenience in using the case.
[0196]
Since the other structure of the ninth embodiment is the same as the structure of the eighth embodiment, the same reference numerals are given to the drawings and the description is omitted.
[0197]
Also, regarding the operation and effect of the ninth embodiment, of the operation and effect of the eighth embodiment, the material (quality) of the outer plate 820 of the case body 813 and the outer plate 821 of the lid 814 and the material (quality) of the diaphragm 110 are different. ), The same operation and effect as those of the eighth embodiment can be obtained except that the number of types of materials can be increased, the operation of the material can be facilitated, and the processing method and processing apparatus can be unified. it can.
[0198]
Also, the case 850 having the above configuration receives music signals from a personal computer and plays music or voice, as well as the case 4 according to the fourth embodiment and the case 810 according to the eighth embodiment. It can be connected to a sound playback device that contains commentary and advertisements during demonstrations of make-up and make-up, and audio for explanations of beauty treatment and make-up equipment and advertisements can be played. It is also possible to connect to a CD player and play music at, for example, one or four corners of a dance practice hall.
[0199]
Further, in the ninth embodiment, by using the cone type speaker device 853 which is widely available on the market and which is widely available, a case with a lower price or a case with better sound quality is selected as the case with the speaker. It becomes easy to provide.
[0200]
Note that a modification equivalent to the modification of the eighth embodiment is also conceivable for the ninth embodiment.
[0201]
Subsequently, a case 850 according to the tenth embodiment of the present invention will be described. FIG. 27 is a drawing corresponding to the tenth embodiment.
[0202]
Regarding the case 850 of the tenth embodiment, a cone-type speaker device 853, an audio amplifier 832, a battery case 831, a volume control unit 825, a pilot lamp 827, a volume control knob 826, an AC power input terminal 833, and an external microphone input terminal 834. , And a jack 829 are attached to the support substrate 822 side.
[0203]
Among these, the volume control axis (volume control knob axis) 826a, the volume control knob 826, and the pilot lamp 827 are exposed outward from the outer plate 821 of the upper wall of the lid 814, and are supported via the volume control unit mounting base 876. It is attached to a substrate 822. Further, the AC power input terminal 833 and the external microphone input terminal 834 are exposed outward from the outer plate 821 on the side wall of the lid 814, and are supported via the external input terminal mounting base 877 (see FIG. 28). Are not shown).
[0204]
The mounting bases 876 and 877 are respectively inserted into the opening 876a for exposing the volume control section and the opening 877a for exposing the external input terminal, which are formed in the outer plate 821 of the lid 814. The opening 877a for exposing the external input terminal, which is an opening of the external input terminal, is provided with the volume adjusting knob 826, the pilot lamp 827, and the volume adjusting shaft 826a together with the volume adjusting unit mounting base 876 from the outer plate 821 on the lid 814 to the inside of the lid. A slide groove 878 (see FIGS. 27 and 28) is provided as a space for moving the support substrate 822 to which the mounting bases 876 and 877 are attached when the support substrate 822 is removed.
[0205]
The slide groove 878 has an external input terminal mounting base 877 for moving the volume necessary for extracting the volume control knob 826 and the pilot lamp 827 together with the volume control unit mounting base 876 from the volume control unit exposure opening 876 a to the inside of the lid 814. The external input terminal exposure opening 877a is formed by providing the external input terminal mounting base 877 in a size obtained by adding the movement amount.
[0206]
The left and right edges of the opening 877a for exposing the external input terminal including the slide groove 878 and the opening 876a for exposing the volume control portion are the edge reinforcement frame 840 of the lid 814, the lid side edge reinforcement frame 842, and the upper and lower edges are cross-sections. It is formed by being surrounded by a U-shaped opening edge material 879.
[0207]
The outer edge member 879 has a U-shaped cross section, and the outer plate 821 on the side wall of the lid 814 and the outer plate 821 on the upper wall of the lid 814 are fitted into the U-shaped section, respectively. The rim 814 and the lid side opening edge reinforcing frame 842 are fixed to the rivet via the fixing piece 879a.
[0208]
In the tenth embodiment configured as described above, when removing the cone-type speaker device 853, the sound amplifier 832, and the like together with the support substrate 822, first remove the gap between the support substrate 822 and the outer plate 821 on the side wall of the lid 814. The fixed screw is removed, and the support substrate 822 is pushed down. At this time, since the slide groove 878 is opened in the opening 877a for exposing the external input terminal, the slide groove 878 is opened from the outer plate 821 on the side wall of the lid 814 provided with the external microphone input terminal 834, the AC power input terminal 833, and the like. The external input terminal mounting base 877 that is exposed to the outside is allowed to slide downward (see the arrow in FIG. 28), and together with the volume control unit mounting base 876 that is exposed to the outside from the outer plate 821 of the upper wall of the lid 814. Then, the volume control knob 826, the pilot lamp 827, and the like provided on the volume control unit mounting base 876 are pulled out from the volume control unit exposure opening 876a opened in the outer plate 821 of the upper wall of the lid 814 to the inside of the lid 814. be able to.
[0209]
Next, the support substrate 822 is moved in the horizontal direction, the external input terminal mounting base 877 is pulled out from the external input terminal exposure opening 877a to the inside of the lid 814, and all the components of the speaker device such as the cone type speaker device 853 are mounted. The support substrate 822 thus removed is removed.
[0210]
After the cone type speaker device 853 and the like are removed together with the support substrate 822, the opening insertion protrusions 880a and 880b formed in the hole filling member 880 (see FIG. 29) are inserted into the both openings 876a and 877a, respectively. Then, the screw that fixed the support substrate 822 and the outer plate 821 on the side wall of the lid 814 is used again to fix the piercing member 880 to the outer plate 821 on the side wall of the lid 814. The opening insertion protrusion 880a inserted into the volume control unit exposure opening 876a is formed in the same shape and size as the volume control unit exposure opening 876a, and is formed in the external input terminal exposure opening 877a. The opening insertion protrusion 880b to be inserted is formed in the same shape and size as the external input terminal exposure opening 877a including the slide groove 878.
[0211]
The two protrusions 880a and 880b of the hole filling member 880 are inserted into the two openings 876a and 877a, so that the two openings 876a and 877a can be completely closed.
[0212]
As described above, since the case 850 according to the tenth embodiment has the slide groove 878, the external input terminal mounting base 877 can be slid downward together with the external input terminal when the volume control unit mounting base 876 is lowered. The terminal mounting base 876 is characterized in that it can slide up and down in a slide groove 878 formed in the outer plate 821 on the side wall of the lid 814.
[0213]
Similarly to the case 810 according to the eighth embodiment and the case 850 according to the ninth embodiment, when the case 850 according to the tenth embodiment is used only as a case without using a speaker, the speaker is repaired. When replacing the speaker, or when replacing the speaker, the support substrate 822 on which the cone-type speaker device 853, the sound amplifier 832, and the like are attached is moved from the lid 814 of the case 850 to the volume control knob 826, the pilot lamp 827, and the like. And the AC power input terminal 833, the external microphone input terminal 834, and the like protruding to the side of the case 850.
[0214]
It is to be noted that, in addition to the hole filling member 880, a hole filling plate 881 of another component shown in FIG. 29B is provided at the both openings 876a and 877a of the lid 814 formed after the support substrate 822 is removed. 876a, 877a may be fitted and closed. In this case, it is preferable to prevent the hole filling plate 881 from coming off by urging the hole filling plate 881 with springs 882a and 882b.
[0215]
As for the operation and effect of the tenth embodiment, similarly to the operation and effect of the ninth embodiment, of the operation and effect of the eighth embodiment, the material of the outer plate 820 of the case main body 813 and the outer plate 821 of the lid 814 ( Eighth Embodiment Except for the effect that not only increasing the types of materials but also facilitating the management of the materials and unifying the processing method and processing device by making them the same as the material (quality) of the diaphragm 110, The same operation and effect as in the embodiment can be obtained.
[0216]
Also, in the tenth embodiment, similarly to the ninth embodiment, various types and a large number of cone-shaped speaker devices 853 that are available on the market are used, so a cheaper case or a case with better sound quality is selected. Can be provided.
[0219]
The case 850 of the tenth embodiment having the above configuration is similar to the case 4 of the fourth embodiment, the case 810 of the eighth embodiment, and the case 850 of the ninth embodiment. Music or voice can be played via the Internet, audio for commentary or advertisement during the performance of beauty treatment salon or make-up, or music can be played in a dance practice area by connecting to a CD player.
[0218]
The present invention is a thin flat speaker device that can be used in various ways other than the embodiment described above. For example, the thin flat speaker device according to the present invention can be used for a bicycle or motorcycle frame. In this case, the diaphragm is used as a frame, the diaphragm is connected to the closed section of the box, and the vibration applying section is provided in the closed section of the box. In the case where there is no power supply such as a bicycle, it is preferable to use a battery as a power supply and attach a battery box to the frame portion. Further, the support stand of the self-supporting flat speaker device of the present invention is formed in a clamp shape capable of being attached to a bicycle or motorcycle handle or frame, and the clamp portion is tightened with a wing nut or the like to handle the bicycle or motorcycle handle or frame. It can also be a thin flat speaker device that can be attached to and detached from.
[0219]
【The invention's effect】
As described above, in the thin flat speaker device according to claim 1 or claim 2 of the present invention, even if the front and back surfaces of the diaphragm are aluminum or stainless steel, and the core material is low-foam polyethylene with closed cells, the front and back surfaces are also provided. There is no through hole in any direction, it is smooth and beautiful, prevents deterioration of performance, has high rigidity, and has good adhesiveness. In addition, the core material is closed-cell, low-foam polyethylene, which has independent cell pores, is low-density and sparse, is lightweight and has high rigidity, and is flat and smooth by suppressing the wavy of aluminum or stainless steel on the front and back. Forming a perfect surface. As a result, as a whole, the diaphragm as a whole is a structure having a low density, a light weight, a high bending and a high rigidity, and has a mechanical property that there is no through hole in the front and back directions, so that the performance is high.
[0220]
In addition, since aluminum or stainless steel and low-foam polyethylene are used for the diaphragm, the material can be easily obtained, resulting in an inexpensive thin flat speaker device.
[0221]
Further, in the bulletin board according to claim 3 of the present invention, since the aluminum surface material or the stainless steel surface material of the diaphragm faces the illumination means side, the light of the illumination means is transmitted to the aluminum surface material or the stainless steel surface material. The flat and uniform reflected indirect light from the translucent bulletin board illuminates the sign to reflect the appearance of the sign, causing the viewer to have an aesthetic appearance. The built-in lighting means illuminates the outside of the signboard. It is not necessary to provide any means, and the appearance without protrusions on the outside is simple and the handleability is excellent. Further, since the diaphragm of the thin flat speaker device according to claim 1 or 2 is used for the back plate, the sound is emitted from the back surface of the bulletin board, and is posted in front of the sound emitting surface of the diaphragm. Because there is no sound, good sound can be generated. Further, similar to the thin flat speaker device according to the first or second aspect, a material can be easily obtained, and it is an inexpensive, highly rigid, and robust bulletin board. Further, the diaphragm has a configuration in which there is no through hole in the front and back directions on the front and back sides. Therefore, when air moves due to a temperature difference inside and outside the speaker device provided on the signboard, etc., dust and dirt accumulate in the through hole like a conventional diaphragm and cause dirt. prevent.
[0222]
Further, the case according to claim 4 of the present invention is a case that is easily made of a material, is inexpensive, has high rigidity, and is robust, similarly to the thin flat speaker device and the bulletin board described in the above claim. In addition, the diaphragm can be used also as the outer plate and the inner bottom plate of the case, and the case is robust and emits good sound.
[0223]
In addition, the self-supporting flat speaker device according to claim 5 or 6 of the present invention is, similarly to the thin flat speaker device, the bulletin board, and the case described in the above claims, easy to obtain a material, inexpensive, and rigid. It becomes a high and robust self-supporting flat speaker device. In addition, the frame covers the periphery of the diaphragm and has a good appearance.
[0224]
Further, the display device according to claim 7 or 8 of the present invention can easily obtain a material and be inexpensive, like the thin flat speaker device, the bulletin board, the case, and the self-supporting flat speaker device according to the above-described claim. And a rigid display device with high rigidity. In addition, the frame covers the periphery of the diaphragm and has a good appearance.
[0225]
The wall-mounted flat speaker device according to claim 9 or 10 of the present invention is similar to the thin flat speaker device, the bulletin board, the case, the free-standing flat speaker device, and the display device according to the above-described claim. The material is easily obtained, so that a low-cost, high-rigidity, and robust wall-mounted flat speaker device is obtained. In addition, the frame covers the periphery of the diaphragm and has a good appearance. Furthermore, the thin flat speaker device can be easily attached to the wall via the frame.
[0226]
In the case according to the eleventh aspect of the present invention, the speaker device portion can be made of a material that is easily obtained, and can be a low-priced, highly rigid, and robust thin speaker. Since the sound wave is emitted to the outside through the provided through hole, the speaker device can be protected.
[0227]
Further, since the speaker device portion can be detached and attached together with the support substrate to which the speaker device portion is attached, when not used as a speaker, the speaker device portion can be removed and the storage portion can be expanded as a case, and the weight can be reduced.
[Brief description of the drawings]
FIG. 1 is a sectional view of a thin flat speaker device according to a first embodiment of the present invention.
FIG. 2 is a sectional perspective view of a diaphragm used in the thin flat speaker device of FIG.
FIG. 3 is a cross-sectional view of a thin flat speaker device according to a second embodiment of the present invention.
4 is a sectional perspective view of a diaphragm used in the thin flat speaker device of FIG.
FIG. 5 is a perspective view showing a bulletin board according to a third embodiment of the present invention in a partially transparent state.
6 is a sectional view taken along the line VI-VI of the bulletin board in FIG. 5;
FIG. 7 is a sectional view taken along line VII-VII of the bulletin board of FIG. 5;
FIG. 8 is a sectional view taken along line VIII-VIII of the bulletin board of FIG. 5;
FIG. 9 is a perspective view of a case according to a fourth embodiment of the present invention.
FIG. 10 is a sectional view taken along line XX of the case of FIG. 9;
FIG. 11 is a perspective view showing the case of FIG. 9 in an opened state.
FIG. 12 is a perspective view of a self-supporting flat speaker device according to a fifth embodiment of the present invention.
13 is a cross-sectional view of the self-supporting flat speaker device of FIG. 12, taken along line XIII-XIII.
14 is a sectional view of the self-supporting flat speaker device of FIG. 12, taken along the line XIV-XIV.
FIG. 15 is a perspective view of a display device according to a sixth embodiment of the present invention and a wall-mounted flat speaker device according to a seventh embodiment.
16 is a cross-sectional view of the display device of FIG. 15, taken along XVI-XVI.
FIG. 17 is a sectional view taken along line XVII-XVII of the display device of FIG. 15;
18 is a cross-sectional view showing a modification of the display device shown in FIG. 15, and corresponding to FIG.
19 is a cross-sectional view of the wall-mounted flat speaker device of FIG. 15, taken along XVIIII-XVIIII.
20 is a sectional view taken along the line XX-XX of the wall-mounted flat speaker device of FIG.
FIG. 21 is a perspective view of a case according to an eighth embodiment of the present invention.
FIG. 22 is a sectional view taken along line SA-SA of the case shown in FIG. 21;
FIG. 23 is a perspective view of a cover used for the case of FIG. 21;
FIG. 24 is a perspective view of a case according to a ninth embodiment of the present invention.
FIG. 25 is a perspective view showing a state where a lid of the case shown in FIG. 24 is opened.
FIG. 26 is a sectional view taken along the line SB-SB of the case shown in FIG. 24;
FIG. 27 is a sectional view corresponding to FIG. 26 of a case according to a tenth embodiment of the present invention.
28 is a cross-sectional view showing in detail a mounting state of an external microphone input terminal mounting base in FIG. 27.
FIG. 29 is a view showing a fitted state of a hole filling member or a hole filling plate to be fitted instead of the external microphone input terminal mounting base of FIG. 28;
[Explanation of symbols]
1,2 Thin flat speaker device
3 bulletin board
4 cases
5 Self-supporting flat speaker device
6 Display device
7 Wall-mounted flat speaker device
110 diaphragm
111 core material
112,113 face material
114,115 paint layer
116,117 adhesive layer
120 Vibration giving unit
120a Wiring
121 bobbin
122 voice coil
123 Magnetic gap
124 leaf spring
125 housing
125a bottom plate
125b Mounting flange
125c gap
126 permanent magnet
127 iron plate
128 damper
129 Jack
129a Lead wire
130 Sound Amplifier
210 diaphragm
211 core material
212,213 face material
214,215 adhesive layer
220 Vibration giving unit
221, 222 Ceramics
223 Brass electrode plate
224 Vibration transmission unit
225 Damper weight
231 plug
232 wiring
310 Bulletin Department
311, 312 Support panel
313 bulletin panel
313a Front end
313b Cover frame insertion groove
320 fluorescent light
321 acrylic board
322 Inoz Canceller
330 frames
331 support frame
332 cover frame
332a trailing edge
332b Cover frame insertion groove
332c Bulletin board insertion groove
333 hinge
333a spring
334 lid
335 Front edge plate
335a side edge
410 Case body
412 urethane
412a Storage recess
420 lid
421 lid inner bottom plate
422 urethane
423 skin
423a front panel
423b Side plate
424 Edge reinforcement frame
425 skin
426 Corner reinforcement piece
427 Lid empty space
430 hinge
440 handle
450 Hook
510 frames
520 support base
521 Support Connection Member
530 amplifier
531 Jack
540 External audio equipment
541 connection code
610 Thin display
621 frame
623 elastic body
624 frames
630 elastic body
640 Display support
641 support leg
710 frame
711 Holder
712 Wall mounting extension
713 Elastic body for vibration absorption
714 Elastic body for vibration absorption
730 recess
810 cases
811 Outer surface
812 through hole
813 Case body
814 lid
815 hinge
815a, 815b Hinge stopper surface
816 Rotating axis
817 handle
818 Hanger
819 cover
819a Screw hole
820 skin
821 skin
822 Support substrate
822a notch
822b Side wall outer plate fixing part
822c edge
823 Holding member
824 batteries
825 Volume control unit
826 Volume control knob
826a Volume control axis
826b ridge
827 Pilot lamp
828 wiring
828a pin terminal connector
828b Protective cover
829 Jack
831 Battery case
832 Sound Amplifier
833 AC power input terminal
834 external microphone input terminal
835 Diaphragm support bracket
836 Support elastic body
837 Seal plate
837a handle
838 Mounting base
838a Edge of outer plate
838b Fixed piece
839 Opening hole for mounting base exposure
840 Edge reinforcement frame
840a caulking
841 Case body side opening edge reinforcement frame
841a convex part
842 lid side opening edge reinforcement frame
842a groove
843 corner connection piece
846 spacer
847 sound output hole
849 legs
850 cases
851 outer surface
852 through hole
853 cone type speaker device
855 wiring
876 Volume control unit mounting base
876a Volume control exposure opening
877 External input terminal mounting base
877a Opening for external input terminal exposure
878 slide groove
879 Open edge material
879a Fixed piece
880 hole filling material
880a, 880b Opening insertion protrusion
881 hole filling plate
882a, 882b Spring
AD AC power adapter
CB connection code
HL lid open / close lock
PC PC

Claims (11)

A diaphragm is a laminated composite plate of aluminum and low-foamed polyethylene having a total thickness of 1.5 mm to 6.0 mm, in which closed-cell low-foam polyethylene is used as a core material and aluminum front and back surfaces are joined to the front and back of the core material. A thin flat speaker device, wherein a vibration imparting section that applies vibration to the diaphragm in accordance with an acoustic electric signal is fixed to one of the front and back surfaces of the diaphragm. Vibrating a laminated composite plate of stainless steel and low-foam polyethylene with a total thickness of 1.2 mm to 4.0 mm, with closed-cell low-foam polyethylene as the core material and stainless steel face materials bonded to the front and back of the core material A thin flat speaker device comprising: a plate; and a vibration imparting section for applying vibration to the diaphragm in accordance with an acoustic electric signal is fixed to one of the front and back surfaces of the diaphragm. A back plate, a bulletin board disposed to face the back plate at a predetermined distance and having translucency, and lighting means interposed between the back plate and the bulletin board, wherein the back plate is A bulletin board, which is the thin flat speaker device according to claim 1 or 2. A case, wherein a part of the case has a handle and is capable of carrying stored items, wherein at least a part of the case is constituted by the thin flat speaker device according to claim 1 or 2. 3. The thin flat speaker device according to claim 1 or 2, a frame directly attached around a diaphragm of the thin flat speaker device, and a supporting base connected to a part of the frame. A self-contained flat speaker device characterized by the following. 3. The thin flat speaker device according to claim 1 or 2, a frame indirectly attached via an elastic body around a diaphragm of the thin flat speaker device, and a part of the frame. A self-supporting flat speaker device comprising a support stand. The thin flat speaker device according to claim 1 or 2, a display body, and a mounting frame for attaching a part of a periphery of a diaphragm of the thin flat speaker device to a side surface of the display body via an elastic body; A frame for directly fixing the remaining portion around the diaphragm of the thin flat speaker device. The thin flat speaker device according to claim 1 or 2, a display body, and a mounting frame for attaching a part of a periphery of a diaphragm of the thin flat speaker device to a side surface of the display body via an elastic body; A display device, comprising: a frame for fixing a remaining portion around a diaphragm of the thin flat speaker device via an elastic body. 3. The thin flat speaker device according to claim 1, further comprising: a frame directly mounted around a diaphragm of the thin flat speaker device, wherein the frame is an end portion of the diaphragm of the thin flat speaker device. A wall-mounting flat speaker device, comprising: a holding portion for holding the wall; and a wall-mounting extension portion extending from the holding portion. 3. The thin flat speaker device according to claim 1 or 2, further comprising: a frame indirectly attached via a resilient body around a diaphragm of the thin flat speaker device, wherein the frame is the thin flat speaker. A wall-mounted flat speaker device, comprising: a holding portion for holding an end of a diaphragm of the device; and a wall-mounting extending portion extending from the holding portion. In a case having a handle in part and capable of carrying stored items, at least a part of an outer plate of a lid of the case is provided with a through hole through which sound waves pass, and faces the through hole. A case, comprising: the thin flat speaker device according to claim 2; and a support substrate to which the thin speaker device is mounted is detachably mounted inside the case.

Images