JP3664296B2

JP3664296B2 - Vacuum cleaner and manufacturing method thereof

Info

Publication number: JP3664296B2
Application number: JP19479099A
Authority: JP
Inventors: 友和吉岡
Original assignee: Toshiba TEC Corp
Current assignee: Toshiba TEC Corp
Priority date: 1999-07-08
Filing date: 1999-07-08
Publication date: 2005-06-22
Anticipated expiration: 2019-07-08
Also published as: JP2001017367A

Description

【０００１】
【発明の属する技術分野】
本発明は、電動送風機の駆動を設定するホースの把持部に設けた操作手段を備えた電気掃除機およびその製造方法に関する。
【０００２】
【従来の技術】
従来、この種の電気掃除機として、例えばホースの把持部に設けられ掃除作業者の所望する電動送風機の駆動状態が表示された操作手段の各種スイッチを設定操作することにより、ホースに設けた伝送線を介して供給される所定の電流値を適宜可変し、この可変した電流値に基づいて掃除機本体に収容した制御手段を搭載する回路基板により電動送風機の駆動を適宜制御する構成が知られている。そして、この電気掃除機では、操作手段にメンブレンスイッチが使用されている。
【０００３】
すなわち、掃除作業の際に把持されて前後に押し引きされる把持部は軽量小型化が望まれていることから、この把持部に配設される操作手段も軽量小型のメンブレンスイッチが利用される。このメンブレンスイッチは、銅箔などが一面に設けられたポリイミド樹脂などのプリント基板を、適宜エッチング処理などにて回路パターンを構成して形成した回路基板を有している。また、メンブレンスイッチは、回路パターンに設けられている対向する複数対の電極に対応してエンボスが設けられこのエンボスに各対をなす電極間を短絡するスイッチ部が設けられた操作樹脂板を有している。そして、メンブレンスイッチは、回路基板と操作樹脂基板とが一体的に接合されて構成され、柔軟性を有し耐久性に優れた軽量小型に形成されている。
【０００４】
また、メンブレンスイッチの回路基板には、各電極に対応して複数の抵抗体が面実装され、所定の電極間を短絡する操作により、対応する抵抗体の抵抗値によりホースの伝送線を介して供給される電流値を可変する操作手段が構成されている。
【０００５】
【発明が解決しようとする課題】
しかしながら、従来のメンブレンスイッチを用いた操作手段では、抵抗体を面実装しているため、メンブレンスイッチの回路基板から抵抗素子が突出する状態であることから、さらなる小型化が望まれている。このため、抵抗体を例えば抵抗体ペーストをメンブレンスイッチの回路基板に印刷して焼き付け形成することが考えられる。しかしながら、抵抗体ペーストを印刷形成する場合には、抵抗値のばらつきが生じやすく、特に複数のスイッチに対応して複数の抵抗体を形成する場合には各抵抗体の抵抗値の差が小さくなるので、制御手段が所定の抵抗値を読み取って電動送風機を駆動する制御に誤作動を生じるおそれがある。
【０００６】
本発明は、このような点に鑑みなされたもので、設定操作に対応して所定の電流値を制御手段に確実に出力する小型の操作手段を備えた電気掃除機およびその製造方法を提供することを目的とする。
【０００７】
【課題を解決するための手段】
請求項１記載の電気掃除機は、電動送風機およびこの電動送風機の駆動を制御する制御手段を収容する掃除機本体と、この掃除機本体に一端が接続され他端に把持部を備えたホースと、前記把持部に配設され前記電動送風機の駆動状態を設定する設定操作により前記制御手段に所定の電流値を出力する長手状の操作手段とを備え、前記操作手段は、長手方向に互いに離間された複数の対をなす電極およびトリミング可能なトリミング部を備え、長手方向に沿って略直線状の回路パターンが印刷形成された回路部と、この回路部の長手方向の端部に一体的に設けられ前記回路パターンに連続して前記対をなす電極に導通する一対の端子およびこれら端子に連続する前記回路パターンに印刷形成された受動素子を備えた端子部とを有する回路基板を備え、前記回路パターンは、前記対をなす電極の前記端子部に近い側に連続するものから順に前記回路部の長手方向に直交する方向に順次内側から外側へと形成され、前記トリミング部は、回路基板の長手方向に対して一の前記対をなす電極と他の前記対をなす電極との間にそれぞれ位置し、前記回路パターンに対して前記対をなす電極側へと直交する成分を有する方向に沿って形成されているものである。
【０００８】
そして、掃除機本体に接続されるホースの把持部に、長手方向に互いに離間された複数の対をなす電極を備え長手方向に沿って略直線状の回路パターンが形成された回路部とこの回路部の長手方向の端部に一体的に設けられ回路パターンに連続して対をなす電極に導通する一対の端子およびこれら端子に連続する回路パターンに印刷形成された受動素子を備えた端子部とを有し、回路パターンが、対をなす電極の端子部に近い側に連続するものから順に回路部の長手方向に直交する方向に順次内側から外側へと形成され、トリミング部が、回路基板の長手方向に対して一の対をなす電極と他の対をなす電極との間にそれぞれ位置し、回路パターンに対して対をなす電極側へと直交する成分を有する方向に沿って形成される回路基板を備え電動送風機の駆動状態を設定する設定操作により制御手段に所定の電流値を出力する操作手段を配設するため、印刷形成により小型化が図れ製造性が向上するとともに、印刷形成される受動素子の電気的特性にばらつきが生じてもトリミングによる切欠部にて調整されるので、誤作動なく安定した電動送風機の駆動制御が得られる。
【０００９】
請求項２記載の電気掃除機は、請求項１記載の電気掃除機において、受動素子は、抵抗であるものである。
【００１０】
そして、受動素子を抵抗とするため、設定操作により制御手段に出力する所定の電流値が容易に設定される。
【００１１】
請求項３記載の電気掃除機の製造方法は、電動送風機およびこの電動送風機の駆動を制御する制御手段を収容する掃除機本体と、この掃除機本体に一端が接続され他端に把持部を備えたホースと、前記把持部に配設され前記電動送風機の駆動状態を設定する設定操作により前記制御手段に所定の電流値を出力する長手状の操作手段とを備えた電気掃除機の製造方法において、前記操作手段は、長手方向に互いに離間された複数の対をなす電極を備え、長手方向に沿って略直線状の回路パターンが印刷形成された回路部と、この回路部の長手方向の端部に一体的に設けられ前記回路パターンに連続して前記対をなす電極に導通する一対の端子およびこれら端子に連続する前記回路パターンに印刷形成された受動素子を備えた端子部とを有する回路基板を備え、前記回路パターンは、前記対をなす電極の前記端子部に近い側に連続するものから順に前記回路部の長手方向に直交する方向に順次内側から外側へと形成され、前記回路パターンの一の前記対をなす電極と他の前記対をなす電極との間のそれぞれを、前記回路パターンに対して前記対をなす電極側へと直交する成分を有する方向に沿ってトリミングしてインピーダンスを調整するものである。
【００１２】
そして、掃除機本体に接続されるホースの把持部に配設され電動送風機の駆動状態を設定する設定操作により制御手段に所定の電流値を出力する操作手段の回路基板に設けられ長手方向に互いに離間された複数の対をなす電極を備えた回路部の長手方向に沿って略直線状の回路パターンの一の対をなす電極と他の対をなす電極との間のそれぞれを、回路パターンに対して対をなす電極側へと直交する成分を有する方向に沿ってトリミングしてインピーダンスを調整して形成するため、印刷形成により小型化が図れ製造性が向上するとともに、印刷形成される受動素子の電気的特性にばらつきが生じてもトリミングによる切欠部にて調整されて誤作動なく安定した電動送風機の駆動制御が得られる電気掃除機を容易に形成する。
【００１３】
【発明の実施の形態】
以下、本発明の電気掃除機の実施の一形態を図面を参照して説明する。
【００１４】
図２において、１は電気掃除機本体で、この電気掃除機本体１は電動送風機２を収容する本体であるケース体1aを有し、このケース体1aにホース３の基端が機械的に着脱自在に接続される。また、ホース３の先端には、後方に向けて分岐された形状の把持部である手許操作部４が設けられている。さらに、手許操作部４の先端には、延長管５を介して吸込口体６が取り付けられる。
【００１５】
そして、手許操作部４には、図２および図３に示すように、後方に向けて分岐され先端が自由端となる握り部11が設けられている。また、手許操作部４の上面には、上方に向けて凹溝状の取付凹部12が設けられている。さらに、この取付凹部12には、図４に示すように、手許操作部４内に連通する配線挿通孔13が開口形成されている。
【００１６】
また、取付凹部12には、スイッチである操作手段としてのスイッチ基板15が取り付けられている。このスイッチ基板15は、図１、図４ないし図８に示すように、回路基板16と銘板17とが一体的に接合された２層構造に形成されている。
【００１７】
そして、回路基板16は、図１に示すように、例えばポリエチレンテレフタレートやポリイミドなどにてフィルム状に形成された可撓性を有する薄膜合成樹脂基板21を有している。この薄膜合成樹脂基板21の一面には、銀などの導電性金属を含有する導電性ペーストが、対向する櫛状の電極22，22を複数対有した所定のパターンにスクリーン印刷されて焼き付けられた銀パターン23a が設けられている。さらに、銀パターン23a には電解めっきによりニッケルパターン23b が積層形成され、銀パターン23a およびニッケルパターン23b にて回路パターン23が形成され、略長方形平板状の回路部24が形成される。また、この回路部24の長手方向の端部には、舌片状に設けられ回路部24の回路パターン23に連続して電極22，22に導通する一対の端子25，25が同様にスクリーン印刷・焼き付け・電解めっきにて形成された端子部26が一体的に設けられている。
【００１８】
また、端子部26には、受動素子としての抵抗である複数の抵抗素子27，27が回路パターン23と同様にスクリーン印刷・焼き付けにて設けられる電流設定領域28が設けられている。
【００１９】
さらに、回路基板16の回路パターン23には、各抵抗素子27，27および対応する電極22，22間にトリミングにて図示しない切欠部が設けられるトリミング部29が設けられている。このトリミング部29は、設計目標のインピーダンス、例えば抵抗値より十分に小さく形成されている。
【００２０】
一方、銘板17は、回路基板16と同様に、例えばポリエチレンテレフタレートやポリイミドなどにて可撓性を有するフィルム状に形成され、回路基板16の外径より大きい寸法の略楕円平板状、すなわち取付凹部12に対応する形状に形成されている。そして、銘板17には、一面側に球面状に膨出するエンボス31が回路基板16の対をなす各電極22，22に対応して複数、例えば４つ設けられている。
【００２１】
また、銘板17の一面側には、電動送風機２の駆動状態の内容を表示する表示部32が印刷形成されている。さらに、銘板17の他面側には、エンボス31の内面側に位置して略円形状に、導電性ペーストがスクリーン印刷・焼き付け・電解めっきされた図示しない導電部が設けられている。
【００２２】
そして、回路基板16の回路パターン23が設けられた側と銘板17の導電部が設けられた他面側とが接着剤などにて一体的に接合されてスイッチ基板15が形成されている。なお、この接合は、図１、図７および図８に示すように、回路基板16の端子部26を除く少なくとも回路部24と銘板17とが接着剤にて接合され、端子部26は銘板17に接合されずに銘板17の周縁より内側で先端側が屈曲可能に自由端となっている。さらに、エンボス31の内面側にも接着剤が介在しない。そして、この接合により、回路基板16の対をなす電極22，22と銘板17の導電部とが所定の間隙を介して対向して常開型のスイッチ部35，36，37，38が複数、例えば４つ構成される。
【００２３】
また、銘板17の端子部26に対向する部分には、図１および図８に示すように接着剤が塗布形成され剥離シート40が剥離可能に接着する接着層41が設けられている。さらに、回路基板16の回路部の他面、すなわち回路パターン23が設けられた側と反対側の面および回路基板16と接続するために設けた銘板17の一面には、接着剤が塗布形成された接着層41が設けられている。
【００２４】
そして、スイッチ基板15は、回路基板16の端子部26に図４および図６に示すようにホース３に配設される図示しない伝送線に接続するリード線43が半田44にて接続され、屈曲されて配線挿通孔13内に挿通され、銘板17および回路基板16の各接着層41，41が取付凹部12内に接着されて、握り部11から延長管５の方向に向けて停止設定用のスイッチ部35、自動設定用のスイッチ部36、弱設定用のスイッチ部37および強設定用のスイッチ部38が１列に順次並んで取り付けられる。
【００２５】
次に、図９ないし図１１を参照して、内部構成について説明する。
【００２６】
まず、電気掃除機本体１内に配設された電動送風機２は、それぞれ電力制御用のトライアックTrを介して商用交流電源Ｅに接続されている。そして、トライアックTrのゲートには、電気掃除機本体１内に収容された図示しない回路基板上に搭載される制御手段45に接続されている。
【００２７】
この制御手段45は、第１の制御部46および第２の制御部47を備え、第１の制御部46には操作手段としてのスイッチ基板15がホース３の伝送線3aを介して着脱可能に接続されている。
【００２８】
そして、第１の制御部46は、図１０に示すように、スイッチ基板15に電源を供給する電源手段50と、スイッチ基板15からの電流値を読み取る読取手段51と、読取手段51にて読み取った電流値によりいずれのスイッチ部35〜38が操作されたかを判別する判別手段52とを備えている。
【００２９】
また、スイッチ基板15は、各対をなす電極22，22と抵抗素子27，27とにて、図１１の回路図に示すように、端子部26の端子25，25間に、抵抗R1、銘板17の停止設定用の表示部32に対応するスイッチ部35と抵抗R2との直列回路、銘板17の自動設定用の表示部32に対応するスイッチ部36と抵抗R3との直列回路、銘板17の弱設定用の表示部32に対応するスイッチ部37と抵抗R4との直列回路、および、銘板17の強設定用の表示部32に対応するスイッチ部38と抵抗R5との直列回路が並列に接続されて構成されている。そして、各抵抗R1〜R5はそれぞれ異なる抵抗値に設定され、抵抗R1が第１の制御部46からの電源を所定の電流値に可変する常時電流設定手段となり、他の各スイッチ部35〜38と直列回路を構成する抵抗R2〜R5が電源をそれぞれ異なる電流値に設定する一時電流設定手段となる。
【００３０】
また、第２の制御部47は、第１の制御部46の判別手段52にて判別した内容に対応してトライアックTrを適宜位相制御し、判別した内容に対応、すなわちスイッチ基板15の各種スイッチ部35〜38の設定操作に対応して電動送風機２の駆動状態を制御する。
【００３１】
次に、上記実施の形態の動作を説明する。
【００３２】
まず、スイッチ基板15は、例えばポリエチレンテレフタレートやポリイミドなどにてシート状に形成された可撓性を有する薄膜合成樹脂板上に、銀などの導電性金属を含有する導電性ペーストを所定のパターンにスクリーン印刷して焼き付け、銀パターン23a を形成する。この銀パターン23a は、端子部26の電流設定領域28に対応する部分に、複数の対向して離間する複数対の電極部23c を設けて形成される。この後、銀パターン23a の電極部23c ，23c 間に、抵抗体ペーストをスクリーン印刷して焼き付け、複数の抵抗素子27，27を形成する。
【００３３】
この後、抵抗素子27，27を除く銀パターン23a の部分に電解めっきを施してニッケルパターン23b を形成し、対向する電極22，22およびトリミング部29，29を有した複数の回路パターン23，23を形成する。そして、１つの回路パターン23の各抵抗素子27，27の抵抗値を測定し、所定の抵抗値となる条件の長さ寸法で、各回路パターン23，23のトリミング部29，29を同様にトリミングして切欠部を設け、抵抗値を増大させて目標の抵抗値に調整する。この後、各回路パターン23，23毎に切断して複数の回路基板16，16を切り出し形成する。
【００３４】
そして、切り出し形成した回路基板16に、あらかじめエンボス31、導電部および表示部32を設けた銘板17を接着してスイッチ基板15を形成する。
【００３５】
また、スイッチ基板15を手許操作部４に取り付けるに際しては、手許操作部４の配線挿通孔13から引き出したリード線43をスイッチ基板15の端子部26の端子25，25に半田44にて接続する。この後、剥離シート40を剥離し、端子部26を基端部分で屈曲させて配線挿通孔13内に嵌挿しつつ、回路基板16および銘板17の接着層41，41を手許操作部４の取付凹部12内に接着して取り付ける。
【００３６】
そして、掃除に際しては、電気掃除機本体１に適宜ホース３、延長管５および吸込口体６を接続し、図示しない電源コードを介して商用交流電源Ｅを供給しておく。そして、第１の制御部46の読取手段51が電流を読み取り、判別手段52にて常時電流設定手段となる抵抗R1による所定の閾値以上の電流の有無を判別し、ホース３が接続されているか否かを判別する。
【００３７】
また、読取手段51にて読み取った電流値が所定の閾値以上、すなわちいずれかのスイッチ部35〜38が操作されることにより所定の閾値以上の電流を読み取ると、判別手段52がいずれのスイッチ部35〜38が操作されたものであるかを判別し、第２の制御部47にてスイッチ部35〜38の操作に対応してトライアックTrを位相制御し、電動送風機２を所定の駆動状態に制御する。
【００３８】
ここで、スイッチ部35〜38は、銘板17に設けられた導電部が回路基板16の対向する一対の電極22，22間を短絡することにより閉成するので、銘板17のエンボス31の弾性に抗して押動操作すればよく、この銘板17の設定操作が直接スイッチ部35〜38の開閉動作となり、違和感のない良好な感触が得られ、操作性が向上する。
【００３９】
上記実施の形態では、ホース３の手許操作部４に配設され電動送風機２の駆動状態を設定する設定操作により制御手段45に所定の電流値を出力する操作手段を構成するスイッチ基板15を、スイッチ部35〜38を構成する複数対の電極22，22およびこれら電極22，22にそれぞれ接続される抵抗素子27，27を設けて印刷形成した回路パターン23の一部で各抵抗素子27，27に対応するトリミング部29，29に、トリミングにて切欠部を設けて形成するため、チップ抵抗器を面実装するなどに比して印刷形成により抵抗素子27，27が回路基板16から突出するなどがなくスイッチ基板15を小型に形成できるとともに、印刷にて形成される回路パターン23と同様の工程の印刷にて抵抗素子27，27を形成するので製造性を向上できる。
【００４０】
さらに、印刷形成により抵抗素子27，27の電気的特性にばらつきが生じても、トリミングによる切欠部にて抵抗値が調整されるので、所定の電流値を確実に制御手段45に出力でき、誤作動なく安定して電動送風機２の駆動制御ができ、掃除性を向上できる。
【００４１】
また、シート状の薄膜合成樹脂板に複数の回路パターン23を形成し、１つの回路パターン23の各抵抗素子27，27の抵抗値を測定し、所定の抵抗値となる条件の長さ寸法で、各回路パターン23，23のトリミング部29，29を同様にトリミングして切欠部を設けるため、回路パターン23，23毎に抵抗値を測定してトリミング処理する必要なく、１つの回路パターン23の各抵抗素子27，27の抵抗値を測定するのみで、複数の回路パターン23，23の抵抗素子27，27の抵抗値の調整ができ、製造性を向上できる。
【００４２】
そして、制御手段45に設定操作に対応して所定の電流値を出力する構成として、抵抗素子27，27を印刷形成するため、設定操作により所定の抵抗素子27，27により供給される電流値が適宜可変されることとなり、所定の電流値の設定が容易にできる。
【００４３】
また、離間する対をなす電極22，22を有した回路パターン23を形成する平板状の回路部24の一縁に舌片状に屈曲可能で電極22，22に導通する端子25，25が設けられた端子部26を有した回路基板16に、対をなす電極22，22に対応して表示部32，32が設けられ押動操作により電極22，22間を開閉可能で回路部24より径大に形成された可撓性の銘板17を一体的に接合するとともに、手許操作部４に銘板17を接着して取り付けるため、端子部26が銘板17に覆われて手許操作部４に取り付けされるので外観を損うことを防止できるとともに、銘板17と回路基板16とが位置ずれしても銘板17が大きいために簡単な構造で回路基板16が露出することなく一体的に接合可能で製造性を向上できる。
【００４４】
また、銘板17の回路基板16の端子部26に対向する面に手許操作部４に接着される接着層41を設けるため、接着面積を増大でき、確実に取り付けできる。
【００４５】
さらに、薄膜合成樹脂基板21の一面に導電性ペーストをスクリーン印刷・めっき処理して複数対の電極22，22を有した回路パターン23を形成する回路基板16に、対をなす電極22，22にそれぞれ対応して一面側に球面状に膨出形成したエンボス31，31の他面側に電極22，22間を短絡する導電部を設けるとともにエンボス31，31の一面側に電動送風機２の駆動状態の内容を表示する表示部32，32を設けた銘板17を接合して２層構造のスイッチ基板15を構成するため、銘板17とスイッチ部35〜38を有する基板とを共用でき、構成部材が減少して小型化でき、製造性も向上できる。
【００４６】
また、上述したように、銘板17の設定操作が直接スイッチ部35〜38の開閉動作となるので、従来のような銘板と電極22，22間を短絡させるメンブレンスイッチの導電部を有した基板との双方を押動操作することによる違和感がなく、操作性を向上できる。
【００４７】
さらに、銘板17にスイッチ部35〜38を構成する導電部を導電性ペーストのスクリーン印刷にて形成するため、例えば無電解めっきにて形成した場合に比して、設定操作されて変形する銘板17に設けても導電部が剥離するなどの損傷がなく長期間安定したスイッチ部35〜38の開閉が得られる。
【００４８】
なお、上記実施の形態において、銘板17に導電部を設けて説明したが、例えばメンブレンスイッチを銘板17に隠れるように端子部26は接合することなく一体的に接合し、銘板17の中間部から舌片状に端子部26が屈曲可能に突出するように３層構造に接合するとともに、この一体に３層構造で接合したスイッチ基板15を少なくとも銘板17に設けた接着層41にて接着して取り付けてもよい。
【００４９】
さらに、スイッチ部35〜38を４つ設けた構成について説明したが、１つあるいは複数設けてもよい。
【００５０】
また、回路基板16および銘板17は、可撓性を有するフィルム状であれば、いずれの材質の薄膜合成樹脂基板でもできる。
【００５１】
そして、受動素子として抵抗となる抵抗素子27，27を設けて説明したが、抵抗に限らず、コイルやコンデンサなどいずれの受動素子でもよい。
【００５２】
【発明の効果】
請求項１記載の電気掃除機によれば、掃除機本体に接続されるホースの把持部に、長手方向に互いに離間された複数の対をなす電極を備え長手方向に沿って略直線状の回路パターンが形成された回路部とこの回路部の長手方向の端部に一体的に設けられ回路パターンに連続して対をなす電極に導通する一対の端子およびこれら端子に連続する回路パターンに印刷形成された受動素子を備えた端子部とを有し、回路パターンが、対をなす電極の端子部に近い側に連続するものから順に回路部の長手方向に直交する方向に順次内側から外側へと形成され、トリミング部が、回路基板の長手方向に対して一の対をなす電極と他の対をなす電極との間にそれぞれ位置し、回路パターンに対して対をなす電極側へと直交する成分を有する方向に沿って形成される回路基板を備え電動送風機の駆動状態を設定する設定操作により制御手段に所定の電流値を出力する操作手段を配設するため、印刷形成により操作手段を小型化でき製造性を向上できるとともに、印刷形成される受動素子の電気的特性にばらつきが生じてもトリミングによる切欠部にて調整されるので誤作動なく安定して電動送風機の駆動制御ができ、小型の操作手段を把持部に設けることにより、把持部の小型化が図れ、掃除作業性を向上できる。
【００５３】
請求項２記載の電気掃除機によれば、請求項１記載の電気掃除機の効果に加え、受動素子を抵抗とするため、設定操作により制御手段に出力する所定の電流値を容易に設定できる。
【００５４】
請求項３記載の電気掃除機の製造方法によれば、掃除機本体に接続されるホースの把持部に配設され電動送風機の駆動状態を設定する設定操作により制御手段に所定の電流値を出力する操作手段の回路基板に設けられ長手方向に互いに離間された複数の対をなす電極を備えた回路部の長手方向に沿って略直線状の回路パターンの一の対をなす電極と他の対をなす電極との間のそれぞれを、回路パターンに対して対をなす電極側へと直交する成分を有する方向に沿ってトリミングにてインピーダンスを調整して形成するため、印刷形成により操作手段を小型化でき製造性を向上できるとともに、印刷形成される受動素子の電気的特性にばらつきが生じてもトリミングによる切欠部にて調整されて誤作動なく安定した電動送風機の駆動制御ができ、小型の操作手段を把持部に設けることによる把持部の小型化により掃除作業性を向上できる電気掃除機を容易に形成できる。
【図面の簡単な説明】
【図１】本発明の電気掃除機の実施の一形態を示すスイッチ基板の回路基板の平面図である。
【図２】同上電動送風機本体を示す斜視図である。
【図３】同上手許操作部を示す斜視図である。
【図４】同上手許操作部の一部を切り欠いた取付凹部近傍を示す側面図である。
【図５】同上スイッチ基板の一部を切り欠いた断面図である。
【図６】同上端子部を示す断面図である。
【図７】同上スイッチ基板の接着層を示す平面図である。
【図８】同上銘板の剥離シートが接着される部分の接着層を示す平面図である。
【図９】同上電気掃除機本体の回路構成を示すブロック図である。
【図１０】同上制御手段を示すブロック図である。
【図１１】同上スイッチ基板を示す回路図である。
【符号の説明】
１電気掃除機本体
２電動送風機
３ホース
４把持部である手許操作部
15 操作手段としてのスイッチ基板
16 回路基板
22 スイッチとなるスイッチ部を構成する電極
23 回路パターン
24 回路部
26 端子部
27 受動素子としての抵抗である抵抗素子
29 トリミング部
45 制御手段[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vacuum cleaner provided with an operation means provided in a grip portion of a hose for setting driving of an electric blower and a method for manufacturing the same.
[0002]
[Prior art]
Conventionally, as this type of vacuum cleaner, for example, transmission provided on the hose by setting and operating various switches of the operation means provided on the grip portion of the hose and displaying the driving state of the electric blower desired by the cleaning operator A configuration is known in which a predetermined current value supplied via a wire is appropriately changed, and the driving of the electric blower is appropriately controlled by a circuit board on which control means housed in the cleaner body is mounted based on the changed current value. ing. And in this vacuum cleaner, the membrane switch is used for the operation means.
[0003]
That is, since the gripping part that is gripped during the cleaning operation and pushed and pulled back and forth is desired to be lightweight and compact, a lightweight and compact membrane switch is also used as the operating means disposed in the gripping part. . This membrane switch has a circuit board formed by appropriately forming a printed circuit board made of polyimide resin or the like provided with a copper foil or the like on one side by appropriately forming a circuit pattern by an etching process or the like. In addition, the membrane switch has an operation resin plate in which embosses are provided corresponding to a plurality of opposed electrodes provided in the circuit pattern, and a switch portion is provided on the emboss to short-circuit between each pair of electrodes. doing. The membrane switch is formed by integrally joining a circuit board and an operation resin board, and is formed in a lightweight and small size having flexibility and excellent durability.
[0004]
In addition, a plurality of resistors are surface-mounted on the circuit board of the membrane switch so as to correspond to each electrode, and an operation of short-circuiting between predetermined electrodes causes the resistance value of the corresponding resistor to pass through the transmission line of the hose. Operation means for changing the supplied current value is configured.
[0005]
[Problems to be solved by the invention]
However, in the operation means using the conventional membrane switch, since the resistor is surface-mounted, the resistance element protrudes from the circuit board of the membrane switch, so further downsizing is desired. For this reason, it is conceivable that the resistor is formed by printing a resistor paste on the circuit board of the membrane switch. However, when the resistor paste is printed and formed, the resistance value is likely to vary. In particular, when a plurality of resistors are formed corresponding to a plurality of switches, the difference in resistance value between the resistors is small. Therefore, there is a possibility that a malfunction may occur in the control in which the control means reads the predetermined resistance value and drives the electric blower.
[0006]
The present invention has been made in view of the above points, and provides a vacuum cleaner including a small operation unit that reliably outputs a predetermined current value to a control unit in response to a setting operation, and a method for manufacturing the same. For the purpose.
[0007]
[Means for Solving the Problems]
The vacuum cleaner according to claim 1 is a vacuum cleaner main body that houses an electric blower and a control means that controls driving of the electric blower, a hose having one end connected to the vacuum cleaner main body, and a gripping portion at the other end. And a longitudinal operation means that outputs a predetermined current value to the control means by a setting operation that is disposed in the grip portion and sets a driving state of the electric blower, and the operation means are separated from each other in the longitudinal direction. A plurality of pairs of electrodes and trimming portions that can be trimmed, and a circuit portion on which a substantially linear circuit pattern is printed and formed along the longitudinal direction, and an end portion in the longitudinal direction of the circuit portion. a circuit board having a pair of terminals and the terminal portion having a passive element the printed on the circuit pattern continuing to these terminals provided continuously to the circuit pattern electrically connected to electrodes forming the pair Wherein the circuit pattern is the formed pair of successive ones closer to the terminal portion of the electrode from the sequential inward in a direction perpendicular to the longitudinal direction of the circuit portion in order to form a outward, the trimming unit, A component that is positioned between one of the pair of electrodes and the other pair of electrodes with respect to the longitudinal direction of the circuit board, and that is orthogonal to the pair of electrodes with respect to the circuit pattern. It is formed along the direction .
[0008]
A circuit portion having a plurality of pairs of electrodes spaced apart from each other in the longitudinal direction and a substantially linear circuit pattern formed in the longitudinal direction on the grip portion of the hose connected to the vacuum cleaner body, and the circuit A terminal part provided with a pair of terminals that are integrally provided at the longitudinal end of the part and that are electrically connected to a pair of electrodes that are continuous with the circuit pattern, and a passive element that is printed on the circuit pattern that is continuous with these terminals; The circuit pattern is formed sequentially from the inner side to the outer side in the direction orthogonal to the longitudinal direction of the circuit part in order from the one that is continuous from the side close to the terminal part of the paired electrodes, and the trimming part is formed on the circuit board. It is located between a pair of electrodes and another pair of electrodes with respect to the longitudinal direction, and is formed along a direction having a component orthogonal to the pair of electrodes with respect to the circuit pattern. Electric circuit board Since the operation means for outputting a predetermined current value to the control means by the setting operation for setting the driving state of the fan is disposed, the size can be reduced by the printing formation, the manufacturability is improved, and the electric power of the passive element to be printed is improved. Even if there is a variation in the mechanical characteristics, adjustment is made at the notch by trimming, so that stable drive control of the electric blower can be obtained without malfunction.
[0009]
The vacuum cleaner according to claim 2 is the vacuum cleaner according to claim 1, wherein the passive element is a resistor.
[0010]
Since the passive element is a resistor, a predetermined current value output to the control means is easily set by a setting operation.
[0011]
The method of manufacturing an electric vacuum cleaner according to claim 3 includes: a vacuum cleaner main body that houses an electric blower and a control unit that controls driving of the electric blower; one end connected to the vacuum cleaner main body, and a grip portion at the other end. In a method of manufacturing a vacuum cleaner, comprising: a long hose; and a longitudinal operation means that outputs a predetermined current value to the control means by a setting operation that is disposed in the grip portion and sets a driving state of the electric blower The operation means includes a plurality of pairs of electrodes spaced apart from each other in the longitudinal direction, a circuit portion on which a substantially linear circuit pattern is printed and formed along the longitudinal direction, and an end of the circuit portion in the longitudinal direction. A pair of terminals that are provided integrally with each other and are connected to the pair of electrodes that are continuous with the circuit pattern, and a terminal portion that is provided with a passive element printed on the circuit pattern that is continuous with the terminals. The circuit pattern is formed from the inner side to the outer side sequentially in a direction orthogonal to the longitudinal direction of the circuit part in order from the one that is continuous to the side close to the terminal part of the pair of electrodes. Impedance between each of the pair of electrodes and the other pair of electrodes along a direction having a component orthogonal to the pair of electrodes with respect to the circuit pattern. Is to adjust.
[0012]
And it is provided in the circuit board of the operation means which is arranged in the holding part of the hose connected to the vacuum cleaner main body and outputs a predetermined current value to the control means by setting operation which sets the driving state of the electric blower. A circuit pattern is formed between one pair of substantially linear circuit pattern electrodes and another pair of electrodes along the longitudinal direction of the circuit portion having a plurality of spaced apart pairs of electrodes. On the other hand, the impedance is adjusted by trimming along the direction having the component orthogonal to the paired electrode side, so that the size can be reduced by printing and the productivity is improved and the passive element that is printed is formed. Even if there is a variation in the electrical characteristics of the electric vacuum cleaner, a vacuum cleaner that can be adjusted at the notch by trimming and can stably control the electric blower without malfunction is easily formed.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, one embodiment of a vacuum cleaner of the present invention will be described with reference to the drawings.
[0014]
In FIG. 2, 1 is a main body of the vacuum cleaner, and the main body 1 of the vacuum cleaner has a case body 1a which is a main body for housing the electric blower 2, and the base end of the hose 3 is mechanically attached to and detached from the case body 1a. Connect freely. In addition, at the tip of the hose 3, a hand operation unit 4 that is a gripping part having a shape branched backward is provided. Further, a suction port body 6 is attached to the distal end of the hand operation section 4 via an extension pipe 5.
[0015]
As shown in FIG. 2 and FIG. 3, the hand operating portion 4 is provided with a grip portion 11 that is branched rearward and has a free end at the tip. Further, on the upper surface of the hand operating portion 4, a mounting groove 12 having a concave groove shape is provided upward. Further, as shown in FIG. 4, the mounting recess 12 is formed with a wiring insertion hole 13 that communicates with the hand operating portion 4.
[0016]
In addition, a switch board 15 as an operation means that is a switch is attached to the attachment recess 12. The switch board 15 is formed in a two-layer structure in which a circuit board 16 and a name plate 17 are integrally joined as shown in FIGS.
[0017]
As shown in FIG. 1, the circuit board 16 includes a flexible thin film synthetic resin substrate 21 formed into a film shape using, for example, polyethylene terephthalate or polyimide. On one surface of the thin film synthetic resin substrate 21, a conductive paste containing a conductive metal such as silver was screen-printed and baked in a predetermined pattern having a plurality of pairs of opposing comb-like electrodes 22 and 22. A silver pattern 23a is provided. Further, a nickel pattern 23b is laminated on the silver pattern 23a by electrolytic plating, and a circuit pattern 23 is formed by the silver pattern 23a and the nickel pattern 23b, thereby forming a circuit portion 24 having a substantially rectangular flat plate shape. In addition, a pair of terminals 25, 25, which are provided in a tongue-like shape and are continuous with the circuit pattern 23 of the circuit part 24 and are electrically connected to the electrodes 22, 22, are also screen-printed at the end in the longitudinal direction of the circuit part 24. The terminal portion 26 formed by baking / electrolytic plating is integrally provided.
[0018]
Further, the terminal portion 26 is provided with a current setting region 28 in which a plurality of resistance elements 27, 27, which are resistances as passive elements, are provided by screen printing / baking in the same manner as the circuit pattern 23.
[0019]
Further, the circuit pattern 23 of the circuit board 16 is provided with a trimming portion 29 in which notch portions (not shown) are provided by trimming between the respective resistance elements 27 and 27 and the corresponding electrodes 22 and 22. The trimming portion 29 is formed to be sufficiently smaller than a design target impedance, for example, a resistance value.
[0020]
On the other hand, the nameplate 17 is formed in a flexible film shape such as polyethylene terephthalate or polyimide, for example, like the circuit board 16, and has a substantially elliptical plate shape having a size larger than the outer diameter of the circuit board 16, that is, a mounting recess. It is formed in a shape corresponding to 12. The nameplate 17 is provided with a plurality of, for example, four embosses 31 corresponding to the respective electrodes 22 and 22 forming a pair of circuit boards 16 on one side.
[0021]
In addition, on one side of the nameplate 17, a display unit 32 that displays the content of the driving state of the electric blower 2 is formed by printing. Further, on the other surface side of the nameplate 17, there is provided a conductive portion (not shown) in which a conductive paste is screen-printed / baked / electroplated in a substantially circular shape located on the inner surface side of the emboss 31.
[0022]
The switch substrate 15 is formed by integrally bonding the side of the circuit board 16 on which the circuit pattern 23 is provided and the other side of the nameplate 17 on which the conductive portion is provided with an adhesive or the like. 1, 7 and 8, at least the circuit portion 24 except for the terminal portion 26 of the circuit board 16 and the name plate 17 are bonded with an adhesive, and the terminal portion 26 is connected to the name plate 17. The front end side is a free end so that it can be bent inside the periphery of the nameplate 17 without being joined to the plate. Further, no adhesive is present on the inner surface side of the emboss 31. And by this joining, the electrodes 22, 22 forming a pair of the circuit board 16 and the conductive portion of the nameplate 17 are opposed to each other with a predetermined gap, and a plurality of normally open type switch portions 35, 36, 37, 38, For example, four are configured.
[0023]
Further, as shown in FIGS. 1 and 8, an adhesive layer 41 is provided on the portion of the nameplate 17 facing the terminal portion 26, and an adhesive is applied and formed so that the release sheet 40 can be peeled off. Furthermore, an adhesive is applied and formed on the other surface of the circuit portion of the circuit board 16, that is, the surface opposite to the side where the circuit pattern 23 is provided and one surface of the nameplate 17 provided for connection to the circuit board 16. An adhesive layer 41 is provided.
[0024]
The switch board 15 is connected to a terminal portion 26 of the circuit board 16 with a lead wire 43 connected to a transmission line (not shown) disposed in the hose 3 as shown in FIGS. The adhesive layer 41 and 41 of the nameplate 17 and the circuit board 16 are bonded in the mounting recess 12 and are set to stop from the grip portion 11 toward the extension pipe 5. A switch unit 35, a switch unit 36 for automatic setting, a switch unit 37 for weak setting, and a switch unit 38 for strong setting are sequentially mounted in a line.
[0025]
Next, the internal configuration will be described with reference to FIGS.
[0026]
First, the electric blower 2 disposed in the electric vacuum cleaner main body 1 is connected to a commercial AC power source E through a triac Tr for power control. The gate of the triac Tr is connected to control means 45 mounted on a circuit board (not shown) housed in the vacuum cleaner body 1.
[0027]
The control unit 45 includes a first control unit 46 and a second control unit 47, and a switch board 15 as an operation unit can be attached to and detached from the first control unit 46 via the transmission line 3 a of the hose 3. It is connected.
[0028]
Then, as shown in FIG. 10, the first control unit 46 uses the power supply means 50 for supplying power to the switch board 15, the reading means 51 for reading the current value from the switch board 15, and the reading means 51 for reading. And a discriminating means 52 for discriminating which switch sections 35 to 38 are operated according to the current value.
[0029]
Further, the switch board 15 includes a pair of electrodes 22 and 22 and resistance elements 27 and 27, and a resistor R1 and a nameplate between terminals 25 and 25 of the terminal portion 26 as shown in the circuit diagram of FIG. A series circuit of a switch unit 35 and a resistor R2 corresponding to the display unit 32 for stop setting of 17, a series circuit of a switch unit 36 and a resistor R3 corresponding to the display unit 32 for automatic setting of the nameplate 17, A series circuit of the switch unit 37 and the resistor R4 corresponding to the weak setting display unit 32 and a series circuit of the switch unit 38 and the resistor R5 corresponding to the strong setting display unit 32 of the nameplate 17 are connected in parallel. Has been configured. The resistors R1 to R5 are set to different resistance values, and the resistor R1 serves as a constant current setting means for changing the power supply from the first control unit 46 to a predetermined current value, and the other switch units 35 to 38. The resistors R2 to R5 constituting the series circuit serve as temporary current setting means for setting the power supply to different current values.
[0030]
Further, the second control unit 47 appropriately controls the phase of the triac Tr corresponding to the content determined by the determination means 52 of the first control unit 46, and responds to the determined content, that is, various switches on the switch board 15. The driving state of the electric blower 2 is controlled corresponding to the setting operation of the units 35 to 38.
[0031]
Next, the operation of the above embodiment will be described.
[0032]
First, the switch substrate 15 is formed in a predetermined pattern with a conductive paste containing a conductive metal such as silver on a flexible thin film synthetic resin plate formed in a sheet shape with, for example, polyethylene terephthalate or polyimide. Screen printing and baking are performed to form a silver pattern 23a. The silver pattern 23a is formed by providing a plurality of opposing and spaced apart pairs of electrode portions 23c in a portion corresponding to the current setting region 28 of the terminal portion 26. Thereafter, a resistor paste is screen-printed and baked between the electrode portions 23c and 23c of the silver pattern 23a to form a plurality of resistance elements 27 and 27.
[0033]
Thereafter, a portion of the silver pattern 23a excluding the resistance elements 27 and 27 is subjected to electrolytic plating to form a nickel pattern 23b, and a plurality of circuit patterns 23 and 23 having opposing electrodes 22 and 22 and trimming portions 29 and 29 are formed. Form. Then, the resistance value of each resistance element 27, 27 of one circuit pattern 23 is measured, and the trimming portions 29, 29 of each circuit pattern 23, 23 are similarly trimmed with the length dimension under the condition that the predetermined resistance value is obtained. Thus, a notch is provided, and the resistance value is increased to adjust to the target resistance value. Thereafter, each circuit pattern 23, 23 is cut to form a plurality of circuit boards 16, 16.
[0034]
Then, the nameplate 17 provided with the emboss 31, the conductive part and the display part 32 in advance is bonded to the cut-out circuit board 16 to form the switch board 15.
[0035]
Further, when the switch board 15 is attached to the hand operation part 4, the lead wire 43 drawn out from the wiring insertion hole 13 of the hand operation part 4 is connected to the terminals 25 and 25 of the terminal part 26 of the switch board 15 with the solder 44. . Thereafter, the release sheet 40 is peeled off, the terminal portion 26 is bent at the base end portion, and the adhesive layers 41 and 41 of the circuit board 16 and the nameplate 17 are attached to the hand operating portion 4 while being inserted into the wiring insertion hole 13. Adhering and attaching in the recess 12.
[0036]
For cleaning, the hose 3, the extension pipe 5, and the suction port body 6 are appropriately connected to the electric vacuum cleaner main body 1, and the commercial AC power E is supplied through a power cord (not shown). Then, the reading means 51 of the first control unit 46 reads the current, and the determination means 52 determines whether or not there is a current exceeding a predetermined threshold value by the resistor R1, which is a current setting means, and whether the hose 3 is connected. Determine whether or not.
[0037]
Further, when the current value read by the reading means 51 is equal to or greater than a predetermined threshold, that is, when a current equal to or greater than the predetermined threshold is read by operating any one of the switch sections 35 to 38, the determination means 52 It is determined whether or not 35 to 38 have been operated, and the second control unit 47 performs phase control of the triac Tr in response to the operation of the switch units 35 to 38, so that the electric blower 2 is brought into a predetermined driving state. Control.
[0038]
Here, since the switch portions 35 to 38 are closed by short-circuiting the pair of electrodes 22, 22 facing each other on the circuit board 16, the conductive portion provided on the name plate 17 is closed to the elasticity of the emboss 31 of the name plate 17. Therefore, the setting operation of the nameplate 17 directly becomes the opening / closing operation of the switch portions 35 to 38, and a good feeling without discomfort can be obtained and the operability is improved.
[0039]
In the above embodiment, the switch board 15 constituting the operation means that outputs a predetermined current value to the control means 45 by the setting operation that is arranged in the hand operation section 4 of the hose 3 and sets the driving state of the electric blower 2 is provided. A part of the circuit pattern 23 formed by printing a plurality of pairs of electrodes 22 and 22 constituting the switch sections 35 to 38 and the resistance elements 27 and 27 connected to the electrodes 22 and 22, respectively. Since the trimming portions 29, 29 corresponding to the above are formed by providing notches by trimming, the resistance elements 27, 27 protrude from the circuit board 16 by printing compared to surface mounting of a chip resistor, etc. The switch substrate 15 can be formed in a small size, and the resistance elements 27 and 27 are formed by printing in the same process as the circuit pattern 23 formed by printing, so that the productivity can be improved.
[0040]
Further, even if the electrical characteristics of the resistance elements 27, 27 vary due to the print formation, the resistance value is adjusted at the notch by trimming, so that a predetermined current value can be reliably output to the control means 45, and an error can occur. The drive control of the electric blower 2 can be performed stably without operation, and the cleaning performance can be improved.
[0041]
In addition, a plurality of circuit patterns 23 are formed on a sheet-like thin film synthetic resin plate, and the resistance values of the resistance elements 27 and 27 of one circuit pattern 23 are measured. Since the trimming portions 29 and 29 of the circuit patterns 23 and 23 are similarly trimmed to provide the cutout portions, it is not necessary to measure the resistance value for each circuit pattern 23 and 23 and perform the trimming process. Only by measuring the resistance values of the resistance elements 27 and 27, the resistance values of the resistance elements 27 and 27 of the plurality of circuit patterns 23 and 23 can be adjusted, thereby improving the manufacturability.
[0042]
And, as a configuration for outputting a predetermined current value corresponding to the setting operation to the control means 45, the current values supplied by the predetermined resistance elements 27, 27 by the setting operation are printed in order to print the resistance elements 27, 27. As a result, the predetermined current value can be easily set.
[0043]
Further, terminals 25 and 25 that can be bent in a tongue-like shape and are electrically connected to the electrodes 22 and 22 are provided on one edge of a flat circuit portion 24 that forms a circuit pattern 23 having a pair of electrodes 22 and 22 that are separated from each other. The circuit board 16 having the terminal portion 26 is provided with display portions 32 and 32 corresponding to the pair of electrodes 22 and 22 so that the electrodes 22 and 22 can be opened and closed by a push operation, and the diameter of the circuit portion 24 can be increased. The flexible name plate 17 formed in a large size is joined together, and the name plate 17 is bonded to the hand operating part 4 and attached, so that the terminal part 26 is covered with the name plate 17 and attached to the hand operating part 4. As a result, the appearance plate can be prevented from being damaged, and even if the nameplate 17 and the circuit board 16 are misaligned, the nameplate 17 is large so that the circuit board 16 can be integrally joined without being exposed with a simple structure. Can be improved.
[0044]
Further, since the adhesive layer 41 to be bonded to the handheld operating portion 4 is provided on the surface of the nameplate 17 facing the terminal portion 26 of the circuit board 16, the bonding area can be increased and the mounting can be ensured.
[0045]
Furthermore, the conductive paste is screen-printed / plated on one surface of the thin film synthetic resin substrate 21 to form a circuit pattern 23 having a plurality of pairs of electrodes 22 and 22, and the pair of electrodes 22 and 22 Correspondingly, a conductive portion that short-circuits between the electrodes 22 and 22 is provided on the other surface side of the emboss 31 and 31 that are formed in a spherical shape on one surface side, and the driving state of the electric blower 2 is provided on one surface side of the emboss 31 and 31 The nameplate 17 provided with the display portions 32 and 32 for displaying the contents of the two is joined to form the two-layer switch board 15, so that the nameplate 17 and the board having the switch portions 35 to 38 can be shared. The size can be reduced and the productivity can be improved.
[0046]
In addition, as described above, the setting operation of the nameplate 17 directly opens and closes the switch portions 35 to 38, so that the conventional nameplate and the substrate having the conductive portion of the membrane switch that short-circuits between the electrodes 22 and 22 There is no sense of incongruity due to the pushing operation of both, and the operability can be improved.
[0047]
Furthermore, in order to form the conductive portions constituting the switch portions 35 to 38 on the nameplate 17 by screen printing of a conductive paste, for example, the nameplate 17 that is set and deformed as compared with the case where it is formed by electroless plating. Even if it is provided, the switch portions 35 to 38 can be opened and closed stably for a long time without damage such as peeling of the conductive portion.
[0048]
In the above-described embodiment, the conductive part is provided on the nameplate 17, but the terminal part 26 is integrally joined without being joined so that the membrane switch is hidden behind the nameplate 17, for example, from the middle part of the nameplate 17. The terminal part 26 is joined in a three-layer structure so that the terminal portion 26 bends in a tongue-like shape, and the switch board 15 joined in a three-layer structure is bonded to at least an adhesive layer 41 provided on the nameplate 17. It may be attached.
[0049]
Furthermore, although the configuration in which four switch units 35 to 38 are provided has been described, one or more may be provided.
[0050]
Further, the circuit board 16 and the name plate 17 may be a thin film synthetic resin board of any material as long as it is a flexible film.
[0051]
In the above description, the resistance elements 27 and 27 serving as resistors are provided as the passive elements. However, the present invention is not limited to the resistance, and any passive element such as a coil or a capacitor may be used.
[0052]
【The invention's effect】
According to the vacuum cleaner of claim 1, the grip portion of the hose connected to the vacuum cleaner body is provided with a plurality of pairs of electrodes spaced apart from each other in the longitudinal direction, and a substantially linear circuit along the longitudinal direction. Printed on a circuit part on which a pattern is formed and a pair of terminals that are integrally provided at the end of the circuit part in the longitudinal direction and that are connected to electrodes that are continuously connected to the circuit pattern, and a circuit pattern that is connected to these terminals The circuit pattern is continuous from the side close to the terminal part of the pair of electrodes, in order from the inside to the outside in the direction orthogonal to the longitudinal direction of the circuit part. The formed trimming part is positioned between one pair of electrodes and the other pair of electrodes with respect to the longitudinal direction of the circuit board, and is orthogonal to the pair of electrodes with respect to the circuit pattern. Shape along direction with components For arranging the operation means for outputting a predetermined current value to the control means by the setting operation for setting the driving state of the electric blower includes a circuit board, along with the operation means can be improved miniaturization can manufacturability by printing form Even if the electrical characteristics of printed passive elements vary, adjustment is made at the notch by trimming, so that the drive control of the electric blower can be stably performed without malfunction, and a small operation means is provided in the grip As a result, the grip portion can be reduced in size, and the cleaning workability can be improved.
[0053]
According to the vacuum cleaner of the second aspect, in addition to the effect of the vacuum cleaner of the first aspect, since the passive element is a resistance, a predetermined current value output to the control means can be easily set by a setting operation. .
[0054]
According to the method for manufacturing the electric vacuum cleaner according to claim 3, a predetermined current value is output to the control means by a setting operation that is disposed in a grip portion of a hose connected to the main body of the vacuum cleaner and sets a driving state of the electric blower. An electrode forming one pair of substantially linear circuit patterns along the longitudinal direction of the circuit portion provided with a plurality of pairs of electrodes provided on the circuit board of the operating means and spaced apart from each other in the longitudinal direction, and another pair Since the impedance is adjusted by trimming along the direction having the component orthogonal to the electrode side that makes a pair with the circuit pattern, the operation means is made compact by printing. And can improve manufacturability, and even if there are variations in the electrical characteristics of the passive elements that are printed and printed, adjustments can be made at the cutouts by trimming, allowing stable drive control of the electric blower without malfunction. The electric vacuum cleaner capable of improving cleaning workability by downsizing of the grip portion due to the provision of a small operating means to the gripping portion can be easily formed.
[Brief description of the drawings]
FIG. 1 is a plan view of a circuit board of a switch board showing an embodiment of a vacuum cleaner of the present invention.
FIG. 2 is a perspective view showing the electric blower main body.
FIG. 3 is a perspective view showing the same hand operating part.
FIG. 4 is a side view showing the vicinity of a mounting recess in which a part of the same operating part is cut out.
FIG. 5 is a cross-sectional view in which a part of the switch substrate is cut away.
FIG. 6 is a cross-sectional view showing the terminal portion.
FIG. 7 is a plan view showing an adhesive layer of the same switch substrate.
FIG. 8 is a plan view showing an adhesive layer of a portion to which the release sheet of the nameplate is attached.
FIG. 9 is a block diagram showing a circuit configuration of the electric vacuum cleaner main body.
FIG. 10 is a block diagram showing the control means.
FIG. 11 is a circuit diagram showing the same switch substrate.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Electric blower 3 Hose 4 Hand control part which is a holding part
15 Switch board as operating means
16 Circuit board
22 Electrodes that make up the switch section
23 Circuit pattern
24 circuits
26 terminals
27 Resistive elements that are resistors as passive elements
29 Trimming section
45 Control means

Claims

A vacuum cleaner body that houses an electric blower and control means for controlling the drive of the electric blower;
A hose with one end connected to the vacuum cleaner body and a grip on the other end;
A longitudinal operation means that outputs a predetermined current value to the control means by a setting operation that is disposed in the grip portion and sets a driving state of the electric blower;
The operation means includes a plurality of pairs of electrodes spaced apart from each other in the longitudinal direction and a trimming portion that can be trimmed, and a circuit portion on which a substantially linear circuit pattern is printed along the longitudinal direction, and the circuit portion A pair of terminals that are integrally provided at an end in the longitudinal direction and that are connected to the pair of electrodes that are continuous with the circuit pattern, and a passive element that is printed on the circuit pattern that is continuous with the terminals. A circuit board having a portion ,
The circuit pattern is formed sequentially from the inside to the outside in the direction orthogonal to the longitudinal direction of the circuit portion in order from the one that is continuous to the side close to the terminal portion of the paired electrodes,
The trimming portions are located between the pair of electrodes and the other pair of electrodes with respect to the longitudinal direction of the circuit board, respectively, and toward the pair of electrodes with respect to the circuit pattern. A vacuum cleaner characterized by being formed along a direction having orthogonal components .

The vacuum cleaner according to claim 1, wherein the passive element is a resistor.

A vacuum cleaner body that houses an electric blower and a control means for controlling the drive of the electric blower, a hose having one end connected to the vacuum cleaner body and having a gripping portion at the other end, and the electric motor disposed in the gripping portion In a manufacturing method of a vacuum cleaner comprising a longitudinal operation means for outputting a predetermined current value to the control means by a setting operation for setting a driving state of a blower,
The operating means includes a plurality of pairs of electrodes spaced apart from each other in the longitudinal direction, a circuit portion on which a substantially linear circuit pattern is printed and formed along the longitudinal direction, and an end portion in the longitudinal direction of the circuit portion A circuit board having a pair of terminals which are provided integrally with each other and are electrically connected to the pair of electrodes which are continuous with the circuit pattern, and a terminal portion which is provided with a passive element printed on the circuit pattern which is continuous with the terminals. With
The circuit pattern is formed sequentially from the inside to the outside in the direction orthogonal to the longitudinal direction of the circuit portion in order from the one that is continuous to the side close to the terminal portion of the paired electrodes,
Trimming between the pair of electrodes of the circuit pattern and the other pair of electrodes along a direction having a component orthogonal to the pair of electrodes with respect to the circuit pattern And adjusting the impedance, a method of manufacturing a vacuum cleaner.