JP3684484B2

JP3684484B2 - Recessed lighting fixture

Info

Publication number: JP3684484B2
Application number: JP22991395A
Authority: JP
Inventors: 正三山本; 衛濱田; 令子小島
Original assignee: Mitsubishi Electric Corp; Mitsubishi Electric Lighting Corp
Current assignee: Mitsubishi Electric Corp; Mitsubishi Electric Lighting Corp
Priority date: 1995-09-07
Filing date: 1995-09-07
Publication date: 2005-08-17
Anticipated expiration: 2015-09-07
Also published as: JPH0982115A

Description

【０００１】
【発明の属する技術分野】
本発明は、天井に設けた取付開口穴から天井内に埋め込んで取付ける取付金具を備えた埋込形照明器具に係り、より詳しくは、天井の取付開口穴に照明器具本体を挿入するだけでワンタッチで取付けることができる省施工性の埋込形照明器具に関するものである。
【０００２】
【従来の技術】
図８は、例えば特公昭６３−２９３６２号公報に開示された従来の埋込形照明器具の一例を示す斜視図である。１は天井に設けられた取付開口穴に挿入して取付けられる照明器具本体、２は照明器具本体１に取付けられたコ字状の支持部で、両側片の下端部には外方に折曲げられた係止縁３，３が設けられている。４，４は支持部２の両側片に設けられ上下方向に回動自在の支持アーム、５，５は支持アーム４，４を下方に付勢するスプリングである。
【０００３】
上記のように構成した従来の埋込形照明器具の作用を説明する。まず、照明器具を天井に取付けるときに、照明器具本体１の両側に設けられた支持アーム４，４をスプリング５，５に抗して上方に回動し、この状態で照明器具本体１を天井の取付開口穴に支持アーム４，４の先端部から挿入すると、支持アーム４，４はスプリング５，５に付勢されて下方向に回動し、支持アーム４，４と係止縁３，３とによって天井板を挾持する。
【０００４】
【発明が解決しようとする課題】
上記のように構成した従来の埋込型照明器具によれば、照明器具本体１を天井の取付開口穴に挿入するときに、照明器具本体１の両側に位置する支持アーム４，４をスプリング５，５の付勢力に抗して上方に回動し、その状態を両手で保持しながら、天井の取付開口穴に挿入しなければず、取り付けに手間がかかるうえ、取付けた後においても、取り付けが不安定でずれが生じたりする等の問題があった。
本発明は上記のような課題を解決するためになされたもので、取付け前に取り付け金具をあらかじめ操作しなくても照明器具本体を天井の取付開口穴に挿入するだけで簡単に取付けが完了し、片手でもワンタッチで取付けでき、しかも、取り付けが正確で、取り付け時の天井へ衝撃も緩衝でき、しかも部品数も削減したコストのかからない埋込形照明器具を得ること目的とする。
【０００５】
【課題を解決するための手段】
本発明にかかる埋込形照明器具は、次のように構成したものである。
（１）下部開口部にフランジ部を有する照明器具本体の両側部に、回動自在の支持アームと、該支持アームの下方に位置し、その上部付近で該支持アームの下部付近を回動自在に軸支持する固定片とを備えた取付具を設け、前記照明器具本体を天井板の取付開口穴から挿入して前記支持アームと前記フランジ部とにより前記天井板を挾持して前記照明器具本体を天井板に取り付ける埋込形照明器具において、
前記支持アームをほぼく字状に形成して前記照明器具本体の外面に沿って保持しておき、前記照明器具本体を天井板の取付開口穴に挿入する際に、前記支持アームに支持され該支持アームとほぼ直交して外方に突設し該支持アームと共に回動する当て片を、前記天井板の下面に圧接させて前記支持アームの外側下方への回動を誘起させ、さらに前記支持アームを外側下方に付勢させて前記支持アームとフランジ部とによって前記天井板を挾持するようにした埋込形照明器具であって、
両端部を前記支持アームの長手方向両側に設けた長穴に挿通して嵌合するスライド片を設けると共に、一端を該スライド片に係止し他端を前記固定片に係止する弾性部材を設け、前記スライド片は前記支持アームが回動する際に該支持アームの長穴に沿って滑動するようにし、前記照明器具本体を天井の取付開口穴に挿入する前は、前記支持アームは弾性部材によって照明器具本体方向の下方に付勢されており、前記照明器具本体を天井の取付開口穴に挿入するときは、前記支持アームの外側方向への回動時のある位置を境にして、前記弾性部材の付勢力が、前記照明器具本体の内側方向から外側方向の下方に反転し、前記弾性部材によって前記支持アームが照明器具本体の外側方向の下方に付勢されるようにしたものである。
【０００７】
（２）上記（１）の埋込形照明器具において、当て片を支持アームの回動軸付近に軸支すると共に、当て片を支持アームの下面部とほぼ直角位置から支持アーム方向にのみ回動できるように構成したものである。
（３）上記（１）又は（２）の埋込形照明器具において、当て片をほぼ中央部付近から支持アーム面方向に折り曲げて構成したものである。
（４）上記（１），（２）又は（３）の何れかの埋込形照明器具において、支持アームの下端部に支持アームと一体に回動する当て片を設けたものである。
【０００８】
（５）上記（１），（２），（３）又は（４）の埋込形照明器具において、前記支持アームの先端部に緩衝部材を取り付けたものである。
（６）上記（１），（２），（３），（４）又は（５）の埋込形照明器具において、固定片の両側を固定片の面とほぼ直角に外側方向に折り曲げてフランジ部を形成し、フランジ部の幅を照明器具本体の開口部方向に向かってテーパー状に広がるように構成したものである。
【０００９】
【発明の実施の形態】
実施形態１
図１は本発明の第１の実施形態の斜視図、図２は天井へ取付けた状態を示す正面図である。１０はほぼ傘状をなし下部に開口部を有し側部に取付金具を有する照明器具本体で、内部に反射鏡１１とランプ１２を備え、下部開口部の周囲には外側に向かって張り出したフランジ部１３を有している。
１４，１４は照明器具本体１０の両側部に固定された断面ほぼコ字状の固定片で、その下部はフランジ部１３に接触するようにして取付けられている。そして、固定片１４の上部にはほぼ長方形状の切欠部１４ａとその両側に腕部１４ｂ，１４ｂを有し、両腕部１４ｂ，１４ｂの最上部には相互に反対方向（図の外側方向）に折り曲げられた回動支持部１４ｃ，１４ｃが設けられている。１４ｄ，１４ｄは固定片１４の長手方向（図の上下方向）の両側面に設けられたフランジ面で、固定片１４の面に対してほぼ直角に外側方向に向けて折り曲げられている。なお、このフランジ面１４ｄ，１４ｄは、図の上方から下方に向かって幅が広くなっていくテーパ状に形成され、天井の取付開口穴に照明器具本体１０を取り付けたとき、照明器具本体１０の位置がズレないようになっている。
【００１０】
１５，１５は上面部１５ａと下面部１５ｂとによってほぼく字状に形成された支持アームで、表面部（照明器具本体１０方向に位置する面部）の折曲げ部が照明器具本体１０の側面に接触するようにして配置してある。１５ｃは支持アーム１５の先端部で、裏面部（照明器具本体１０と逆方向に位置する面部）側に湾曲させて折り曲げてある。１５ｄ，１５ｄは支持アーム１５の長手方向（図の上下方向）の両側をほぼ直角に裏面方向に折り曲げて形成されたフランジ部である。そして、このフランジ部１５ｄ，１５ｄは、支持アーム１５の先端部１５ｃから根元部に向かって（図の上方から下方に向かって）幅が広くなっていくテーパ状に形成され、その根元部付近にはそれぞれ回動支持穴１５ｅ，１５ｅが設けられ、この回動支持穴１５ｅ，１５ｅには固定片１４の回動支持部１４ｃ，１４ｃが嵌合され、回動支持部１４ｃ，１４ｃを軸として支持アーム１５が上下方向に自在に回動しうるようになっている。
【００１１】
１６，１６は支持アーム１５の両フランジ部１５ｄ，１５ｄの下部に設けられた当て片停止部で、フランジ部１５ｄ，１５ｄの下面部１５ｂに対してそれぞれがほぼ直角で外側に向かうように形成されている。
１７はぼぼコ字状に形成された可動当て片で、その両端根元部を内側方向（互いに向かいあう方向）に折り曲げて、支持アーム１５のフランジ部１５ｄ，１５ｄに設けた回動支持穴１５ｅ，１５ｅに固定片１４の回動支持部１４ｃ，１４ｃと一緒に嵌合し、回動支持穴１５ｅ，１５ｅを軸として回動できるようにしてある。なお、可動当て片１７の両端根元部は、支持アーム１５のフランジ部１５ｄ，１５ｄの根元部付近に回動支持穴１５ｅ，１５ｅとは別個に回動穴を設け、この嵌合穴に嵌合し、これを軸として回動できるようにしてもよい。
【００１２】
そして、この可動当て片１７は、支持アーム１５に設けた当て片停止部１６，１６によって、支持アーム１５の下面部１５ｂとほぼ直角の位置でその下方向への回動が阻止されるようになっている。
また、この可動当て片１７の根元部から先端部までの長さは、支持アーム１５に設けられた当て片停止部１６，１６によって下方向への回動を阻止された状態で、照明器具本体１０を天井板の取付開口穴に挿入したときに、可動当て片１７の先端部が天井板下面に十分に圧接するだけの長さが必要である。なお、可動当て片１７の根元部から先端部までの長さを大きくすることによって、可動当て片１７の天井板下面に圧接する力があまり大きくなくても、支持アーム１５の当て片停止部１６，１６に回動に必要なだけの力が加わるようにすることができる。
【００１３】
１８，１８は支持アーム１５のフランジ部１５ｄ，１５ｄの回動支持穴１５ｅ，１５ｅの上部付近に設けられた長穴で、支持アーム１５の長手方向（下面部１５ｂの面に平行な方向）に形成されている。
１９は両端部を長穴１８，１８に挿通し、支持アーム１５の表面側に折り曲げて嵌合させたスライド片で、支持アーム１５が回動する際に、このスライド片１９が長穴１８，１８に沿って滑動し、スプリング（後述）の負荷を軽減する。
【００１４】
２０，２０はスプリングで、一端をスライド片１９，１９の中央部付近に係止させ、他端を固定片１４の両腕部１４ｂ，１４ｂの基部付近に係止させてある。そして、照明器具本体１０を天井の取付開口穴に挿入する前は、図１に示すように、支持アーム１５はスプリング２０によって照明器具本体１０方向（支持アーム１５の表面方向）の下方に付勢されており、支持アーム１５の先端部１５ｃは上方に向いて、天井の取付開口穴に挿入できる状態となっている。一方、支持アーム１５の外側方向への回動時のある位置を境にして、スプリング２０の付勢力が、照明器具本体１０の内側方向から外側方向（支持アーム１５の裏面方向）の下方に反転し、スプリング２０によって支持アーム１５が照明器具本体１０の外側方向の下方に付勢されるようになっている。
なお、スプリング２０は、固定片１４に設けた切欠部１４ａによって、図１のように、支持アーム１５の表面が照明器具本体１０の側面に接触している状態であっても、スプリング２０の移動、伸縮が妨害されないようになっている。
【００１５】
上記のように構成した本実施形態の作用を説明する。照明器具本体１０を天井に取付ける前は、図１に示すように、支持アーム１５は照明器具本体１０の表面に沿った形で保持されており、スプリング２０によって照明器具本体１０の内側下方向に付勢されている。そして、可動当て片１７は支持アーム１５の下面部１５ｂにほぼ直交した状態で保持されている。
この状態で、図２に示すように、照明器具本体１０を天井２１の取付開口穴２２に挿入すると、可動当て片１７は天井２１の取付開口穴２２よりも横方向に突出しているため、先端部付近から天井板下面２３に圧接される。そして、可動当て片１７が圧接されるにつれて支持アーム１５の当て片停止部１６，１６にも下方向の力が加わるので、支持アーム１５の外側下方向への回動が誘起され、支持アーム１５は回動支持穴１５ｅ，１５ｅを軸として図３に示すように照明器具本体１０の外側下方向に回動する。
【００１６】
こうして、支持アーム１５は回動支持穴１５ｅ，１５ｅを軸として照明器具本体１０の外側下方向に回動するが、回動時のある位置を境にして、スプリング２０の付勢力が、照明器具本体１０の内側方向（支持アーム１５の表面方向）の下方から外側方向（支持アーム１５の裏面方向）の下方に反転し、支持アーム１５はスプリング２０によって外側下方に付勢される。
このとき、スプリング２０の一端が係止しているスライド片１９は、スプリング２０の付勢力によって支持アーム１５のフランジ部１５ｄ，１５ｄに設けられた長穴１８，１８の一端（図３の破線部）から長穴１８，１８沿って滑動し、他端（図３の実線部）まで移動して停止する。これにより、スプリング２０の一端が移動して負荷が軽減され、必要以上にスプリング２０を伸長させることなく、応力の限界を越えないようにしてある。
こうして、支持アーム１５が照明器具本体１０の外側下方に回動すると、可動当て片１７は天井板下面２３との当接を解除され、可動当て片１７の自重によって下方向に回動してフリーとなり、照明器具本体１０の側面を押圧することはない。
【００１７】
このようにして、スライド片１９は、図３に示すように、破線で示した位置から実線で示した位置に移動し、下方向に付勢された支持アーム１５の先端部１５ｃと照明器具本体１０のフランジ部１３とによって天井板２１を挾持し、照明器具本体１０の取り付けを完了する。
従って、本実施形態によれば、照明器具本体１０を天井板２１の取付開口穴２２に挿する際、可動当て片１７が天井板下面２３に圧接されて支持アーム１５に下方向の力が作用するようにしたので、従来のように取付け前に取り付けのための事前作業が不要になり、照明器具本体１０を天井板２１の取付開口穴２２に挿入するだけでワンタッチで取り付けることができる。このため、照明器具の取り付け操作が容易かつ簡素化され、取り付け時間を大幅に短縮することができる。
【００１８】
また、支持アーム１５が回動すると、スライド片１９はスプリング２０の弾性力によって移動するので、スプリング２０に大きな負荷を与えないため、弾性力に影響を与えず、照明器具本体１０をスプリング２０の付勢力によって確実に天井板２１を挾持できる。
さらに、固定片１４の両側面にフランジ面１４ｄ，１４ｄを設け、上方から下方に広がるテーパ形状に形成したので、照明器具本体１０と天井板２１の取付開口穴２２周縁部との間隙を一定に保持でき、照明器具本体１０取付け時のズレを防止することができる。
【００１９】
実施形態２
図４は本発明の第２の実施形態の側面図である。本実施形態では、第１の実施形態で示した支持アーム１５の先端部１５ｃに緩衝部材２４を取付けたもので、支持アーム１５が回動して天井板２１に衝突するときの衝撃力を緩和する。
上記のように構成した本実施形態では、照明器具本体１０を天井板２１の取付開口穴２２に挿入すると、第１の実施形態で示した場合と同様に、可動当て片１１７の先端部付近が天井板下面２３に圧接され、支持アーム１５が回動支持穴１５ｅ，１５ｅを軸として照明器具本体１０の外側下方向に回動する。この際のスプリング２０やスライド片１９の作用は第１の実施形態で説明した場合と同様である。
【００２０】
こうして、支持アーム１５は、スプリング２０によって破線で示した位置から実線で示した位置に回動し、支持アーム１５の先端部１５ｃと照明器具本体１０のフランジ部１３とによって天井面２１を挾持する。この際、支持アーム１５の先端部１５ｃに取付けられた緩衝部材２４によって、支持アーム１５の先端部１５ｃは衝撃力が緩和された状態で天井板２１に衝突する。
従って、本実施形態によれば、照明器具本体１０を天井板２１の取付開口穴２２に挿入するだけでワンタッチで取り付けることができ、照明器具の取り付け操作が容易かつ簡素化され、取り付け時間を大幅に短縮することができる。
そのうえ、支持アーム１５の先端部１５ｃに緩衝部材２４が取り付けられているので、支持アーム１５が回動して天井板２１に衝突するときの衝撃力が緩和される。
【００２１】
実施形態３
図５は本発明の第３の実施形態の側面図である。第１の実施形態では、可動当て片１７によって形成される面は支持アーム１５の当て片停止部１６により下面部１５ｂとほぼ直角方向に形成した面（以下、直角面という）上にあるが、本実施形態では可動当て片１７の先端部が直角面の位置よりも上方（支持アーム１５の先端部１５ｃ側）に位置するようにして、照明器具本体１０を天井板２１の取付開口穴２２に挿入する際に可動当て片１７の先端部が早期に天井板２１に接触するようにしたものである。すなわち、可動当て片１７を、図５の実線に示すように、ほぼ中央部付近から上方に折り曲げてほぼ逆く字状に形成したものである。
【００２２】
上記のように構成した本実施形態では、照明器具本体１０を天井板２１の取付開口穴２２に挿入すると、可動当て片１７の上方に折れ曲がった部分の先端部が天井板下面２３に早期に圧接され、このため支持アーム１５が照明器具本体１０の外側下方向に早期に回動する。この際のスプリング２０やスライド片１９の作用は、第１の実施形態で説明した場合と同様である。
こうして、支持アーム１５は、スプリング２０の付勢力によって、実線で示した位置から下方向に回動して破線で示した位置に移動し、支持アーム１５の先端部１５ｃと照明器具本体１０のフランジ部１３とによって天井板２１を挾持する。
【００２３】
従って、本実施形態によれば、照明器具本体１０を天井板２１の取付開口穴２２に挿入するだけでワンタッチで取り付けることができ、照明器具の取り付け操作が容易かつ簡素化され、取り付け時間を大幅に短縮することができる。
そのうえ、可動当て片１７をほぼ逆く字状に折り曲げて早期に天井板２１に圧接されるようにしたので、支持アーム１５が早期に外側下方向に付勢され、このため天井板２１上面に当接するまでの支持アーム１５の回転範囲を減少することができ、支持アーム１５の天井板２１への衝撃力を緩和することができる。
【００２４】
実施形態４
図６は本発明の第４の実施形態を示す側面図である。第１の実施形態では、照明器具本体１０の内側に反射鏡等が設けられていてスペースの制約があるので、可動当て片１７を回動自在に構成し、支持アーム１５が回動し終わった後に照明器具本体１０の側面に当接してこれを押圧しないように、支持アーム１５とは別部材として構成してある。これに対し、本実施形態では、当て片と支持アーム１５とを一体に構成し、支持アーム１５に当て片の機能を併有させたものである。
【００２５】
すなわち、本実施形態では、支持アーム１５の下部付近に下面部１５ｂとほぼ直角に突設部である固定当て片１７ａを設けて、この固定当て片１７ａ自体に第１の実施形態で示した可動当て片１７の機能を持たせたものである。この場合、固定当て片１７ａの長さは、照明器具本体１０を天井板２１の取付開口穴２２に挿入したときに、支持アーム１５の固定当て片１７ａの先端部が天井板下面２３に圧接して支持アーム１５の回動を誘起できる長さに構成する。同時に、支持アーム１５を回動に支障のない長さに形成し、かつ、支持アーム１５の先端部１５ｃと照明器具本体１０のフランジ部１３とによって天井板２１が挾持されたとき、固定当て片１７ａの先端部が照明器具本体１０の側面に当接しない長さに形成する。
【００２６】
上記のように構成した本実施形態によれば、図６に示すように、照明器具本体１０を天井板２１の取付開口穴２２に挿入すると、固定当て片１７ａの先端部が天井板下面２３に圧接される。このため、支持アーム１５に外側下方向の力が加わり、支持アーム１５は回動支持穴１５ｅ，１５ｅを軸として照明器具本体１０の外側下方向に回動する。この際のスプリング２０やスライド片１９の作用は第１の実施形態で説明した場合と同様である。
こうして、支持アーム１５は、実線で示した位置から破線で示した位置に移動して、支持アーム１５の先端部１５ｃと照明器具本体１０のフランジ部１３によって天井板２１を挾持し、取り付けを完了する。
【００２７】
従って、本実施形態によれば、照明器具本体１０を天井板２１の取付開口穴２２に挿入するだけでワンタッチで取り付けることができ、照明器具の取り付け操作が容易かつ簡素化され、取り付け時間を大幅に短縮することができる。
そのうえ、固定当て片１７ａが支持アーム１５と一体に形成されているので、固定当て片１７ａを支持アーム１５と別個に設ける必要がなく、部品削減ができると共に、構造が簡単で組み立て時間を短縮することができる。
【００２８】
実施形態５
図７は本発明の第５の実施形態の側面図である。第１の実施形態では、支持アーム１５に滑動自在に嵌合したスライド片１９はスプリング２０の負荷を軽減するために可動するが、本実施形態ではスプリング２０の一端を支持アーム１５に直接係止させるようにしたものである。
すなわち、本実施形態では第１の実施形態で示したスライド片１９と長穴１８，１８を設けず、スプリング２０の一端を支持アーム１５の下部付近に直接係止させ、他端を固定片１４の両腕部１４ｂ，１４ｂの基部付近に係止させる。ただし、このようにスプリング２０の両端を固定しても、スプリング２０の弾性限界を超えない範囲内であることを条件とする。
【００２９】
従って、本実施形態によれば、照明器具本体１０を天井板２１の取付開口穴２２に挿入するだけでワンタッチで取り付けることができ、照明器具の取り付け操作が容易かつ簡素化され、取り付け時間を大幅に短縮することができる。
そのうえ、スプリング２０の一端を支持アーム１５の下端部付近に直接係止させ、他端を固定片１４の両腕部１４ｂ，１４ｂの基部付近に係止させたので、スライド片１９等を設ける必要がなく、部品を削減ができると共に、構造が簡単で製品の組み立て時間を短縮することができる。
【図面の簡単な説明】
【図１】本発明の第１の実施形態の斜視図である。
【図２】図１の作用説明図である。
【図３】図１の作用説明図である。
【図４】本発明の第２の実施形態の側面図である。
【図５】本発明の第３の実施形態の側面図である。
【図６】本発明の第４の実施形態の側面図である。
【図７】本発明の第５の実施形態の側面図である。
【図８】従来の埋込形照明器具の一例を示す斜視図である。
【符号の説明】
１０照明器具本体、１３フランジ部、１４固定片、１４ｂ回動支持部、１４ｄフランジ面、１５支持アーム、１７可動当て片、１７ａ固定当て片、１８長穴、１９スライド片、２０スプリング、２１天井板、２４緩衝部材。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an embedded luminaire provided with a mounting bracket that is embedded in a ceiling through a mounting opening hole provided in the ceiling, and more specifically, only by inserting the luminaire main body into the mounting opening hole of the ceiling. It is related with the embedded lighting fixture of the work-saving construction which can be attached by.
[0002]
[Prior art]
FIG. 8 is a perspective view showing an example of a conventional embedded lighting fixture disclosed in, for example, Japanese Patent Publication No. 63-29362. 1 is a luminaire main body which is attached by being inserted into a mounting opening hole provided on the ceiling, 2 is a U-shaped support portion attached to the luminaire main body 1, and is bent outward at the lower ends of both side pieces. Locked edges 3, 3 are provided. Reference numerals 4 and 4 denote support arms which are provided on both side pieces of the support portion 2 and are rotatable in the vertical direction, and 5 and 5 are springs which urge the support arms 4 and 4 downward.
[0003]
The operation of the conventional embedded lighting apparatus configured as described above will be described. First, when mounting the luminaire on the ceiling, the support arms 4 and 4 provided on both sides of the luminaire main body 1 are rotated upward against the springs 5 and 5, and in this state, the luminaire main body 1 is mounted on the ceiling. When the support arms 4 and 4 are inserted into the mounting opening holes of the support arms 4 and 4 from the front end portions, the support arms 4 and 4 are urged by the springs 5 and 5 to rotate downward. 3 and hold the ceiling board.
[0004]
[Problems to be solved by the invention]
According to the conventional embedded luminaire configured as described above, when the luminaire main body 1 is inserted into the mounting opening hole of the ceiling, the support arms 4 and 4 positioned on both sides of the luminaire main body 1 are attached to the spring 5. , 5 to rotate against the urging force of 5 and holding it in both hands, it must be inserted into the ceiling mounting opening hole. There are problems such as instability and misalignment.
The present invention has been made to solve the above-described problems, and the installation can be completed simply by inserting the luminaire main body into the ceiling mounting opening hole without operating the mounting bracket in advance before the mounting. The purpose of the present invention is to obtain a built-in lighting apparatus that can be mounted with one touch with one hand, is accurate, can shock the ceiling during mounting, and has a reduced number of parts.
[0005]
[Means for Solving the Problems]
The embedded lighting apparatus according to the present invention is configured as follows.
(1) On both sides of the luminaire main body having a flange portion at the lower opening, a rotatable support arm is located below the support arm, and the lower part of the support arm is rotatable near its upper part. And a fixture provided with a fixed piece for supporting the shaft, and the lighting fixture body is inserted through a mounting opening hole of the ceiling plate, and the ceiling plate is held by the support arm and the flange portion. In the embedded lighting fixture that attaches to the ceiling plate,
The support arm is formed in a substantially square shape and held along the outer surface of the luminaire main body, and is supported by the support arm when the luminaire main body is inserted into a mounting opening hole of a ceiling plate. An abutting piece that protrudes outward substantially orthogonal to the support arm and rotates together with the support arm is brought into pressure contact with the lower surface of the ceiling plate to induce the downward rotation of the support arm, and further the support An embedded luminaire that urges the arm outward and downward so as to hold the ceiling plate by the support arm and the flange portion ,
An elastic member is provided with slide pieces that are inserted into and fitted into elongated holes provided on both sides in the longitudinal direction of the support arm, and one end is locked to the slide piece and the other end is locked to the fixed piece. The slide piece is slid along a long hole of the support arm when the support arm rotates, and the support arm is elastic before being inserted into the mounting opening hole of the ceiling. The member is biased downward in the direction of the luminaire main body, and when inserting the luminaire main body into the mounting opening hole of the ceiling, taking a position at the time of rotation in the outer direction of the support arm as a boundary, The biasing force of the elastic member is reversed from the inner side of the lighting fixture body to the lower side of the outer side, and the support arm is biased downward by the elastic member in the outer side of the lighting fixture body. is there.
[0007]
(2) In the embedded lighting apparatus of (1) , the abutting piece is supported near the rotation axis of the support arm, and the abutting piece is rotated only in the direction of the support arm from a position substantially perpendicular to the lower surface of the support arm. It is configured to be able to move.
(3) In the embedded luminaire described in (1) or (2 ) above, the contact piece is configured to bend in the direction of the support arm from substantially the vicinity of the center.
(4) In the embedded lighting device according to any one of (1), (2), and (3), a contact piece that rotates integrally with the support arm is provided at the lower end of the support arm.
[0008]
(5) In the embedded luminaire of (1), (2), (3) or (4) , a buffer member is attached to the tip of the support arm.
(6) In the embedded luminaire of the above (1), (2), (3), (4) or (5) , the flange is formed by bending both sides of the fixed piece outwardly at substantially right angles to the surface of the fixed piece. Forming a portion, and the width of the flange portion is configured to be tapered toward the opening of the lighting fixture body.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1
FIG. 1 is a perspective view of a first embodiment of the present invention, and FIG. 2 is a front view showing a state of being attached to a ceiling. Numeral 10 is an illuminating fixture body having an almost umbrella shape and having an opening in the lower part and a mounting bracket on the side part, and has a reflecting mirror 11 and a lamp 12 inside, and protrudes outward around the lower opening. A flange portion 13 is provided.
14 and 14 are fixed pieces having a substantially U-shaped cross section fixed to both side portions of the luminaire main body 10, and lower portions thereof are attached so as to contact the flange portion 13. The upper portion of the fixed piece 14 has a substantially rectangular cutout portion 14a and arm portions 14b, 14b on both sides thereof, and opposite directions (outward directions in the figure) are provided at the uppermost portions of the arm portions 14b, 14b. Rotating support portions 14c and 14c that are bent into two are provided. 14d and 14d are flange surfaces provided on both side surfaces in the longitudinal direction (vertical direction in the figure) of the fixing piece 14, and are bent outward at substantially right angles to the surface of the fixing piece 14. The flange surfaces 14d and 14d are formed in a tapered shape whose width becomes wider from the upper side to the lower side in the drawing, and when the luminaire body 10 is attached to the mounting opening hole of the ceiling, The position is not misaligned.
[0010]
Reference numerals 15 and 15 denote support arms formed in a substantially square shape by the upper surface portion 15 a and the lower surface portion 15 b, and the bent portion of the surface portion (surface portion located in the direction of the luminaire main body 10) is formed on the side surface of the luminaire main body 10. They are placed in contact. 15c is the front-end | tip part of the support arm 15, and is bent and bent to the back surface part (surface part located in the reverse direction to the lighting fixture main body 10) side. Reference numerals 15d and 15d denote flange portions formed by bending both sides of the support arm 15 in the longitudinal direction (vertical direction in the drawing) substantially perpendicularly to the back surface direction. The flange portions 15d and 15d are formed in a tapered shape whose width increases from the tip portion 15c of the support arm 15 toward the root portion (from the upper side to the lower side in the figure). Are provided with rotation support holes 15e, 15e, respectively. The rotation support holes 15e, 15e are fitted with the rotation support portions 14c, 14c of the fixed piece 14, and are supported around the rotation support portions 14c, 14c. The arm 15 can be freely rotated in the vertical direction.
[0011]
Reference numerals 16 and 16 are stopper stop portions provided at the lower portions of both flange portions 15d and 15d of the support arm 15, and are formed so as to be directed substantially outward at right angles to the lower surface portion 15b of the flange portions 15d and 15d. ing.
Reference numeral 17 denotes a movable contact piece formed in a substantially U-shape, and the support portions 15e and 15e are provided in the flange portions 15d and 15d of the support arm 15 by bending the base portions at both ends inward (directions facing each other). Are fitted together with the rotation support portions 14c and 14c of the fixed piece 14, and can be rotated about the rotation support holes 15e and 15e. In addition, the base part of both ends of the movable contact piece 17 is provided with a rotation hole separately from the rotation support holes 15e and 15e in the vicinity of the base part of the flange parts 15d and 15d of the support arm 15, and is fitted into this fitting hole. However, it may be configured to be able to rotate about this.
[0012]
The movable abutting piece 17 is prevented from rotating downward at a position substantially perpendicular to the lower surface portion 15b of the supporting arm 15 by the abutting piece stop portions 16 and 16 provided on the supporting arm 15. It has become.
Further, the length of the movable abutting piece 17 from the base portion to the tip end portion is such that the lighting fixture main body is prevented from turning downward by the abutting piece stop portions 16, 16 provided on the support arm 15. When 10 is inserted into the mounting opening hole of the ceiling plate, the length of the tip of the movable abutting piece 17 needs to be sufficiently pressed against the lower surface of the ceiling plate. Note that, by increasing the length from the base portion to the tip portion of the movable abutting piece 17, the abutting piece stopping portion 16 of the support arm 15 is not required even if the force that presses against the lower surface of the ceiling plate of the movable abutting piece 17 is not so large. , 16 can be applied with a force necessary for rotation.
[0013]
Reference numerals 18 and 18 denote long holes provided near the upper portions of the rotation support holes 15e and 15e of the flange portions 15d and 15d of the support arm 15, respectively, in the longitudinal direction of the support arm 15 (a direction parallel to the surface of the lower surface portion 15b). Is formed.
Reference numeral 19 denotes a slide piece which is inserted into the long holes 18 and 18 at both ends and is bent and fitted to the surface side of the support arm 15. When the support arm 15 rotates, the slide piece 19 is inserted into the long holes 18 and 18. 18 to reduce the load on the spring (described later).
[0014]
Reference numerals 20 and 20 denote springs, one end of which is locked near the center of the slide pieces 19, 19 and the other end is locked near the bases of both arms 14 b, 14 b of the fixed piece 14. And before inserting the lighting fixture main body 10 into the mounting opening hole of the ceiling, as shown in FIG. 1, the support arm 15 is biased downward by the spring 20 in the direction of the lighting fixture main body 10 (surface direction of the support arm 15). The tip 15c of the support arm 15 is directed upward and can be inserted into a mounting opening hole in the ceiling. On the other hand, the urging force of the spring 20 is reversed from the inner side direction of the lighting fixture body 10 to the lower side (the back surface direction of the support arm 15) at a certain position when the support arm 15 is rotated outward. The support arm 15 is urged downward by the spring 20 in the outer direction of the luminaire body 10.
The spring 20 is moved by the notch portion 14a provided in the fixed piece 14 even when the surface of the support arm 15 is in contact with the side surface of the lighting fixture body 10 as shown in FIG. The expansion and contraction is not disturbed.
[0015]
The operation of the present embodiment configured as described above will be described. Before attaching the lighting fixture body 10 to the ceiling, the support arm 15 is held along the surface of the lighting fixture body 10 as shown in FIG. It is energized. The movable contact piece 17 is held in a state substantially orthogonal to the lower surface portion 15 b of the support arm 15.
In this state, as shown in FIG. 2, when the luminaire main body 10 is inserted into the mounting opening hole 22 of the ceiling 21, the movable pad 17 protrudes laterally from the mounting opening hole 22 of the ceiling 21. It is press-contacted to the ceiling board lower surface 23 from the part vicinity. As the movable contact piece 17 is pressed, a downward force is also applied to the contact piece stop portions 16 and 16 of the support arm 15, so that the support arm 15 is pivoted outward and downward, and the support arm 15. Rotates about the rotation support holes 15e, 15e as the axis, as shown in FIG.
[0016]
In this way, the support arm 15 rotates about the rotation support holes 15e and 15e in the downward direction outside the luminaire main body 10. However, the biasing force of the spring 20 is limited to a certain position at the time of rotation. The main body 10 reverses from the lower side in the inner side direction (front surface direction of the support arm 15) to the lower side in the outer side direction (back surface direction of the support arm 15), and the support arm 15 is urged outward and downward by the spring 20.
At this time, the slide piece 19 to which one end of the spring 20 is locked is connected to one end of the long holes 18 and 18 provided in the flange portions 15d and 15d of the support arm 15 by the urging force of the spring 20 (the broken line portion in FIG. 3). ) Slide along the long holes 18, 18, move to the other end (solid line portion in FIG. 3) and stop. Thereby, one end of the spring 20 moves to reduce the load, and the limit of stress is not exceeded without extending the spring 20 more than necessary.
Thus, when the support arm 15 is rotated outward and downward from the luminaire main body 10, the movable contact piece 17 is released from contact with the lower surface 23 of the ceiling plate, and is rotated downward by the weight of the movable contact piece 17 to be free. Therefore, the side surface of the luminaire main body 10 is not pressed.
[0017]
In this way, as shown in FIG. 3, the slide piece 19 moves from the position indicated by the broken line to the position indicated by the solid line, and the front end portion 15c of the support arm 15 biased downward and the luminaire main body. The ceiling plate 21 is held by the ten flange portions 13 to complete the attachment of the lighting fixture body 10.
Therefore, according to the present embodiment, when the lighting fixture body 10 is inserted into the mounting opening hole 22 of the ceiling plate 21, the movable contact piece 17 is pressed against the ceiling plate lower surface 23, and a downward force acts on the support arm 15. Since it did so, the prior work for attachment becomes unnecessary before attachment conventionally, and it can attach with one touch only by inserting the lighting fixture main body 10 in the attachment opening hole 22 of the ceiling board 21. FIG. For this reason, the attachment operation of a lighting fixture is easy and simplified, and attachment time can be reduced significantly.
[0018]
Further, when the support arm 15 is rotated, the slide piece 19 is moved by the elastic force of the spring 20, so that a large load is not applied to the spring 20. The ceiling plate 21 can be securely held by the urging force.
Further, since the flange surfaces 14d and 14d are provided on both side surfaces of the fixed piece 14 and formed in a tapered shape that spreads downward from above, the gap between the lighting fixture body 10 and the peripheral edge of the mounting opening hole 22 of the ceiling plate 21 is made constant. It can hold | maintain and the shift | offset | difference at the time of lighting fixture main body 10 attachment can be prevented.
[0019]
Embodiment 2
FIG. 4 is a side view of the second embodiment of the present invention. In this embodiment, the buffer member 24 is attached to the tip 15c of the support arm 15 shown in the first embodiment, and the impact force when the support arm 15 rotates and collides with the ceiling plate 21 is reduced. To do.
In the present embodiment configured as described above, when the luminaire main body 10 is inserted into the mounting opening hole 22 of the ceiling plate 21, the vicinity of the tip of the movable abutting piece 117 is the same as in the case of the first embodiment. The support arm 15 is pressed against the lower surface 23 of the ceiling plate, and the support arm 15 rotates in the downward direction outside the lighting fixture body 10 about the rotation support holes 15e and 15e. The actions of the spring 20 and the slide piece 19 at this time are the same as in the case described in the first embodiment.
[0020]
Thus, the support arm 15 is rotated from the position indicated by the broken line to the position indicated by the solid line by the spring 20, and the ceiling surface 21 is held by the distal end portion 15 c of the support arm 15 and the flange portion 13 of the lighting fixture body 10. . At this time, the front end portion 15c of the support arm 15 collides with the ceiling plate 21 in a state where the impact force is relaxed by the buffer member 24 attached to the front end portion 15c of the support arm 15.
Therefore, according to the present embodiment, it is possible to attach the lighting fixture body 10 by one-touch simply by inserting the lighting fixture main body 10 into the mounting opening hole 22 of the ceiling plate 21, and the mounting operation of the lighting fixture is facilitated and simplified, and the installation time is greatly increased. Can be shortened.
In addition, since the buffer member 24 is attached to the distal end portion 15c of the support arm 15, the impact force when the support arm 15 rotates and collides with the ceiling board 21 is reduced.
[0021]
Embodiment 3
FIG. 5 is a side view of the third embodiment of the present invention. In the first embodiment, the surface formed by the movable contact piece 17 is on a surface (hereinafter, referred to as a right-angled surface) formed in a direction substantially perpendicular to the lower surface portion 15b by the contact piece stop portion 16 of the support arm 15. In the present embodiment, the lighting fixture body 10 is placed in the mounting opening hole 22 of the ceiling plate 21 so that the tip of the movable abutting piece 17 is located above the position of the right-angled surface (on the tip 15c side of the support arm 15). The tip of the movable abutting piece 17 comes into contact with the ceiling plate 21 at an early stage when inserted. That is, as shown by the solid line in FIG. 5, the movable abutting piece 17 is bent upward from substantially the vicinity of the central portion and formed into a substantially inverted letter shape.
[0022]
In the present embodiment configured as described above, when the luminaire main body 10 is inserted into the mounting opening hole 22 of the ceiling plate 21, the tip portion of the portion bent above the movable abutting piece 17 comes into early contact with the ceiling plate lower surface 23. For this reason, the support arm 15 rotates early in the downward direction on the outside of the luminaire body 10. The actions of the spring 20 and the slide piece 19 at this time are the same as in the case described in the first embodiment.
Thus, the support arm 15 is rotated downward from the position indicated by the solid line by the urging force of the spring 20 to move to the position indicated by the broken line, and the distal end portion 15c of the support arm 15 and the flange of the luminaire main body 10 are moved. The ceiling board 21 is held by the part 13.
[0023]
Therefore, according to the present embodiment, it is possible to attach the lighting fixture body 10 by one-touch simply by inserting the lighting fixture main body 10 into the mounting opening hole 22 of the ceiling plate 21, and the mounting operation of the lighting fixture is facilitated and simplified, and the installation time is greatly increased. Can be shortened.
In addition, since the movable abutting piece 17 is bent in a substantially inverted shape and is brought into pressure contact with the ceiling plate 21 at an early stage, the support arm 15 is urged toward the lower side in the early stage. The range of rotation of the support arm 15 until it abuts can be reduced, and the impact force of the support arm 15 on the ceiling plate 21 can be reduced.
[0024]
Embodiment 4
FIG. 6 is a side view showing a fourth embodiment of the present invention. In the first embodiment, since a reflecting mirror or the like is provided on the inner side of the luminaire main body 10 and space is limited, the movable abutting piece 17 is configured to be rotatable, and the support arm 15 has finished rotating. It is configured as a separate member from the support arm 15 so as not to contact and press the side surface of the luminaire main body 10 later. On the other hand, in this embodiment, the contact piece and the support arm 15 are integrally configured, and the support arm 15 has the function of the contact piece.
[0025]
That is, in this embodiment, the fixed abutting piece 17a which is a projecting portion substantially perpendicular to the lower surface portion 15b is provided in the vicinity of the lower portion of the support arm 15, and the fixed abutting piece 17a itself is movable as shown in the first embodiment. The function of the contact piece 17 is provided. In this case, the length of the fixed abutting piece 17 a is such that the tip of the fixed abutting piece 17 a of the support arm 15 is in pressure contact with the lower surface 23 of the ceiling plate when the lighting fixture body 10 is inserted into the mounting opening hole 22 of the ceiling plate 21. Thus, the length of the support arm 15 can be induced. At the same time, when the support arm 15 is formed to have a length that does not hinder the rotation, and the ceiling plate 21 is clamped by the distal end portion 15c of the support arm 15 and the flange portion 13 of the lighting fixture body 10, The distal end portion of 17a is formed so as not to contact the side surface of the lighting fixture body 10.
[0026]
According to the present embodiment configured as described above, as shown in FIG. 6, when the luminaire main body 10 is inserted into the mounting opening hole 22 of the ceiling plate 21, the distal end portion of the fixed contact piece 17 a is placed on the ceiling plate lower surface 23. Press contact. For this reason, an outward downward force is applied to the support arm 15, and the support arm 15 is rotated outwardly downward of the luminaire main body 10 about the rotation support holes 15 e and 15 e. The actions of the spring 20 and the slide piece 19 at this time are the same as in the case described in the first embodiment.
Thus, the support arm 15 is moved from the position shown by the solid line to the position shown by the broken line, and the ceiling plate 21 is held by the distal end portion 15c of the support arm 15 and the flange portion 13 of the lighting fixture body 10 to complete the attachment. To do.
[0027]
Therefore, according to the present embodiment, it is possible to attach the lighting fixture body 10 by one-touch simply by inserting the lighting fixture main body 10 into the mounting opening hole 22 of the ceiling plate 21, and the mounting operation of the lighting fixture is facilitated and simplified, and the installation time is greatly increased. Can be shortened.
In addition, since the fixed abutting piece 17a is formed integrally with the support arm 15, it is not necessary to provide the fixed abutting piece 17a separately from the support arm 15, the number of parts can be reduced, the structure is simple, and the assembly time is shortened. be able to.
[0028]
Embodiment 5
FIG. 7 is a side view of the fifth embodiment of the present invention. In the first embodiment, the slide piece 19 slidably fitted to the support arm 15 moves to reduce the load of the spring 20, but in this embodiment, one end of the spring 20 is directly locked to the support arm 15. It is made to let you.
That is, in this embodiment, the slide piece 19 and the elongated holes 18 and 18 shown in the first embodiment are not provided, one end of the spring 20 is directly locked near the lower portion of the support arm 15, and the other end is fixed piece 14. The arm portions 14b and 14b are locked in the vicinity of the base portion. However, it is a condition that even if both ends of the spring 20 are fixed in this way, they are within a range that does not exceed the elastic limit of the spring 20.
[0029]
Therefore, according to the present embodiment, it is possible to attach the lighting fixture body 10 by one-touch simply by inserting the lighting fixture body 10 into the mounting opening hole 22 of the ceiling plate 21, and the mounting operation of the lighting fixture is facilitated and simplified, greatly increasing the installation time. Can be shortened.
In addition, since one end of the spring 20 is directly locked near the lower end of the support arm 15 and the other end is locked near the bases of both arms 14b and 14b of the fixed piece 14, it is necessary to provide a slide piece 19 and the like. The number of parts can be reduced, and the structure is simple and the assembly time of the product can be shortened.
[Brief description of the drawings]
FIG. 1 is a perspective view of a first embodiment of the present invention.
FIG. 2 is an operation explanatory diagram of FIG. 1;
FIG. 3 is an operation explanatory diagram of FIG. 1;
FIG. 4 is a side view of a second embodiment of the present invention.
FIG. 5 is a side view of a third embodiment of the present invention.
FIG. 6 is a side view of a fourth embodiment of the present invention.
FIG. 7 is a side view of a fifth embodiment of the present invention.
FIG. 8 is a perspective view showing an example of a conventional embedded lighting fixture.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Lighting fixture main body, 13 Flange part, 14 Fixed piece, 14b Rotation support part, 14d Flange surface, 15 Support arm, 17 Movable piece, 17a Fixed piece, 18 Long hole, 19 Slide piece, 20 Spring, 21 Ceiling Plate, 24 cushioning member.

Claims

On both sides of the luminaire body having a flange portion on the lower opening, rotating the support arm of the free, the positioned below the support arm, rotatably axially supported near the bottom of the support arm near its upper A fixture having a fixing piece to be inserted , the lighting fixture body is inserted from a mounting opening hole of the ceiling plate, the ceiling plate is held by the support arm and the flange portion, and the lighting fixture body is attached to the ceiling plate. In embedded lighting fixtures attached to
The support arm is formed in a substantially square shape and held along the outer surface of the luminaire main body, and is supported by the support arm when the luminaire main body is inserted into a mounting opening hole of a ceiling plate. An abutting piece that protrudes outward substantially orthogonal to the support arm and rotates together with the support arm is brought into pressure contact with the lower surface of the ceiling plate to induce the downward rotation of the support arm, and further the support An embedded luminaire that urges the arm outward and downward so as to hold the ceiling plate by the support arm and the flange portion ,
An elastic member is provided with slide pieces that are inserted into and fitted into elongated holes provided on both sides in the longitudinal direction of the support arm, and one end is locked to the slide piece and the other end is locked to the fixed piece. The slide piece is slid along a long hole of the support arm when the support arm rotates, and the support arm is elastic before being inserted into the mounting opening hole of the ceiling. The member is biased downward in the direction of the luminaire main body, and when inserting the luminaire main body into the mounting opening hole of the ceiling, taking a position at the time of rotation in the outer direction of the support arm as a boundary, The biasing force of the elastic member is reversed from the inner side direction of the lighting fixture body downward to the outer side direction, and the support arm is biased downward in the outer side direction of the lighting fixture body by the elastic member. Features embedded illuminator Instrument.

The contact piece is pivotally supported near the rotation axis of the support arm, and the corresponding piece can be rotated only in the direction of the support arm from a position substantially orthogonal to the lower surface of the support arm. The embedded lighting apparatus according to claim 1 .

The embedded lighting fixture according to claim 1 or 2, wherein the contact piece is bent in the direction of the support arm surface from approximately the center.

4. The embedded lighting apparatus according to claim 1 , wherein a contact piece that rotates integrally with the support arm is provided at a lower end portion of the support arm.

The embedded lighting apparatus according to claim 1, wherein a buffer member is attached to a distal end portion of the support arm.

The flange is formed by bending both sides of the fixed piece outward at a substantially right angle to the surface of the fixed piece, and the width of the flange is configured to be tapered toward the opening of the lighting fixture body. The embedded luminaire according to any one of claims 1, 2, 3, 4 and 5 .