JP3598893B2

JP3598893B2 - Mounting frame for wiring equipment

Info

Publication number: JP3598893B2
Application number: JP21146199A
Authority: JP
Inventors: 竜一森; 満寿雄北村; 昌之前田
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 1999-07-27
Filing date: 1999-07-27
Publication date: 2004-12-08
Anticipated expiration: 2019-07-27
Also published as: JP2001037037A

Description

【０００１】
【発明の属する技術分野】
本発明は、スイッチやコンセントのような配線器具を壁面等の造営面に埋込配設するために用いられる配線器具用取付枠に関するものである。
【０００２】
【従来の技術】
従来より、スイッチやコンセントのような配線器具を壁面等の造営面に埋込配設するために、図１３に示すような金属製の配線器具用取付枠（以下、「取付枠」と略す）３０が用いられている。この取付枠３０は、壁に埋設された埋込ボックス５０の開口面側に取付ねじ（ボックスねじ）５１，５１によって取り付けられ、さらに合成樹脂製のプレート枠５２がねじ５３，５３により前面に取着されるとともに、プレート枠５２の前面に化粧プレート５４が被着されるようになっている。また、取付枠３０の両側部３１ａ，３１ｂには配線器具２０の組立枠２２，２２に設けられた溝部２２ａに係合する係合突起３２ａ，３２ｂが設けられ、且つ一方の側部３１ｂに溝孔３３が設けられて開口窓３０ａとの間で薄肉部３４が形成されている。ここで、取付枠３０への配線器具２０の取り付けは、配線器具２０の一部を取付枠３０の開口窓３０ａに挿入するようにして一方の側部３１ａの係合突起３２ａを片側の組立枠２２の溝部２２ａに係合し、溝孔３３にドライバ等の工具を挿入してこじることにより薄肉部３４を突出変形させて他方の側部３１ｂの係合突起３２ｂを反対側の組立枠２２の溝部２２ａに係合することで行われる。このものにあっては、配線器具２０を取付枠３０に取り付ける際に取付枠３０の開口窓３０ａに一部を挿入した状態に配線器具２０を作業者が手で位置決めし且つ保持しながらドライバ等の工具によって薄肉部３４を突出変形させなければならず、作業性が悪いなどの問題を有していた。
【０００３】
そこで、上記問題を解決するものとして図１４に示すような取付枠４０が既に提案されている（実公昭５８−５２８１６号公報参照）。この取付枠４０は、一方の側部４１ａに配線器具２０の組立枠２２に設けられた溝部２２ａに係合する係合突起４２ａが設けられ、図１５及び図１６に示すような係止片４３が他方の側部４１ｂに設けられた通孔４４より起立状態に突設されており、係止片４３の係止部４３ａが組立枠２２の係止爪２２ｂの下方の切欠２３内に入れ込むことができるようにしてある。
【０００４】
而して、取付枠４０の開口窓４０ａに配線器具２０の一部を挿入するようにして片方の組立枠２２の溝部２２ａに取付枠４０の係合突起４２ａを係合し、その状態で係止片４３が切欠２３に入り込み係止部４３ａが係止爪２２ｂ，２２ｂの下方の配線器具２０の凹所２４内に入り込んで配線器具２０が取付枠４０に取り付けられる。すなわち、本従来例では先の従来例と異なり、ドライバ等の工具を使わずに配線器具２０を取付枠４０に容易に取り付けることができる。
【０００５】
【発明が解決しようとする課題】
ところが、後者の従来例においても取付枠４０から配線器具２０を取り外すときには、図１７に示すように係止片４３の引っかけ外し部４３ｂをドライバ６０にて押圧して係止片４３の係止部４３ａと係止爪２２ｂ，２２ｂとの係止を外していた。すなわち、その形状や引っかけ外し部４３ｂの寸法などから係止片４３の有効長さ（所謂、ばねスパン）が短く、ばね定数が大きいために係止片４３を手で係止解除方向に撓ませることができず、ドライバ等の工具が必要であり不便であった。
【０００６】
本発明は上記事情に鑑みて為されたものであり、その目的とするところは、工具を使わずに手で簡単に配線器具を取り外すことができる配線器具用取付枠を提供することにある。
【０００７】
【課題を解決するための手段】
請求項１の発明は、上記目的を達成するために、対向する一対の側部並びに両側部を連結する連結部を有し側部と連結部とで囲まれた開口窓に配線器具の一部を挿入した形で当該配線器具を保持する枠本体と、枠本体を壁面のような造営面に固定する固定手段と、一方の側部から開口窓側へ突出し配線器具の側面に設けられた溝部に係合する係合突起と、他方の側部に設けられ配線器具の側面に突出する突出部に係脱自在に係止する係止片とを備え、係止片はばね性を有する部材により形成され、側部に固定される固定部と、固定部から側部に略直交する方向へ延設されるとともに側部と交差するように湾曲し且つその先端同士で橋架部により橋架された一対の湾曲部と、当該橋架部の中央端縁から突設され手で操作されて湾曲部を撓ませる操作部とを具備し、湾曲部は、枠本体の側部に設けられた貫通孔に挿通され、固定部の貫通孔側の端縁より側部に略直交する方向に立ち上がってから略半円状に湾曲し貫通孔を通って側部と交差し、さらに略Ｕ形に湾曲してなり、両湾曲部の先端部分を開口窓と反対方向へ折曲し側部の貫通孔の裏面側近傍に位置するような形状とすることで配線器具の突出部に係止される係止部が形成されることを特徴とし、湾曲部によって係止片の有効長さ（所謂、ばねスパン）を従来例よりも長くして係止片のばね定数を小さくすることができる。その結果、操作部を手で操作することで湾曲部を撓めることが可能となり、係止片と配線器具の突出部との係止を外して工具を使わずに手で簡単に配線器具を取り外すことができる。さらに、枠本体の側部に対する係止片の配設スペースが縮小できて全体の小型化が図れる。
【０００９】
請求項２の発明は、請求項１の発明において、係止片の固定部が湾曲部に対して側部の開口窓側に固定されて成ることを特徴とし、請求項１の発明の作用に加えて、係止片が固定される側の側部の幅寸法を低減することができる。
【００１０】
請求項３の発明は、請求項１の発明において、側部に突設された固定用突起を挿通する挿通孔が係止片の固定部に設けられ、挿通孔から突出する固定用突起の先端部がかしめられて成ることを特徴とし、請求項１の発明の作用に加えて、枠本体に対して係止片を容易に固定することができる。
【００１１】
請求項４の発明は、請求項１の発明において、枠本体が単位寸法の配線器具を複数個並べて保持できる寸法に形成され、複数個の配線器具の溝部に各々係合する複数の係合突起が一方の側部に設けられるとともに各配線器具の突出部に各々係止する複数個の係止片が他方の側部に設けられたことを特徴とし、請求項１の発明の作用に加えて、１つの枠本体に複数個の配線器具を一緒に並べて取り付けることができ、また、複数個の係止片を一体に形成する場合に比較して係止片の形状が簡単になって製造コストを抑えることができるとともに、組立の際にパーツフィーダを使って係止片を搬送することができて組立が容易になる。
【００１２】
請求項５の発明は、請求項１の発明において、枠本体が単位寸法の配線器具を複数個並べて保持できる寸法に形成され、一方の側部に設けられて複数個の配線器具の溝部に各々係合する複数の係合突起と、他方の側部に設けられ各配線器具の突出部に各々係止する複数個の係止片とを備え、これら複数個の係止片が一体に形成されたことを特徴とし、請求項１の発明の作用に加えて、１つの枠本体に複数個の配線器具を一緒に並べて取り付けることができ、また、複数個の係止片を別々に製造し且つ組み立てる場合に比較して部品コストの低減と組立効率の向上が図れる。
【００１３】
請求項６の発明は、請求項１の発明において、固定手段は枠本体を埋込ボックスに取り付けるための取付ねじが挿通されるねじ挿通孔から成り、枠本体の両側部に曲げ部が設けられたことを特徴とし、請求項１の発明の作用に加えて、曲げ部によって両側部の強度を向上させ、取付ねじを締め付けた場合の枠本体の変形を防ぐことができる。
【００１４】
【発明の実施の形態】
（実施形態１）
以下、図１〜図９を参照して本発明の実施形態１を詳細に説明する。
【００１５】
図１〜図３に示すように本実施形態の配線器具用取付枠（以下、「取付枠」と略す）Ａの枠本体１は金属製であって、対向する一対の側部２ａ，２ｂと、両側部２ａ，２ｂを連結する連結部３，３と、側部２ａ，２ｂ及び連結部３，３で囲まれた開口窓４とを有する矩形枠状に形成されている。また、各連結部３，３には、枠本体１を埋込ボックス５０に取り付けるための取付ねじ５１（図１３参照）が挿通される長孔状のねじ挿通孔３ａと、壁面を形成する壁パネル等の壁材に枠本体１を取り付けるための挟み金具（図示せず）が係止される挟み金具係止溝３ｂ，３ｂと、プレート枠５２を取り付けるためのねじ５３が螺合するねじ孔３ｃとが設けてある。
【００１６】
一対の側部２ａ，２ｂは長手方向に沿った外側（開口窓４と反対側）の端縁が前方へ折曲されており、一方の側部２ａの長手方向に沿った内側（開口窓４に臨む側）の端縁には、開口窓４の方へ突出し配線器具２０の組立枠２２に設けられた溝部２２ａに係合する係合突起５が長手方向に沿って等間隔に３個設けてある。ここで、本実施形態においては、規格化された１個モジュール寸法の配線器具（例えば、日本工業規格に規定された大角形連用配線器具（ＪＩＳＣ８３０４参照））を短幅方向に３個並べて取り付けることができるように枠本体１並びに開口窓４の寸法が設定してある。
【００１７】
他方の側部２ｂにはスリット状の３つの貫通孔６が長手方向に沿って列設されており、図４に示すように各貫通孔６に一部を挿通した状態で３個の係止片１０が側部２ｂに固定される。
【００１８】
係止片１０は、可撓性（ばね性）を有する板状の金属部材で形成され、図１及び図４に示すように側部２ｂに固定される固定部１１，１１と、各固定部１１，１１から側部２ｂに略直交する方向へ延設されるとともに側部２ｂと交差するように湾曲し且つ先端が橋架部１２ａにより橋架された湾曲部１２，１２と、湾曲部１２，１２の先端（橋架部１２ａの中央端縁）から突設された操作部１３とを具備する。固定部１１，１１には側部２ｂに突設された固定用突起７を挿通する挿通孔１１ａが設けられ、図５に示すように挿通孔１１ａに挿通されて突出する固定用突起７の先端部がかしめられることで固定部１１，１１が側部２ｂに固定される。湾曲部１２，１２は、図４に示すように固定部１１，１１の貫通孔６側の端縁より側部２ｂに略直交する方向に立ち上がってから略半円状に湾曲し貫通孔６を通って側部２ｂと交差し、さらに略Ｕ形に湾曲して先端部が側部２ｂの貫通孔６の裏面側近傍に位置するような形状に形成されている。ここで、湾曲部１２，１２の先端部分を開口窓４と反対方向へ略直角に折曲することで係止部１４，１４が形成されている。また、操作部１３は側部２ｂの貫通孔６を通って湾曲部１２，１２の間から湾曲部１２，１２の半円部分を超える位置まで突出しており、その先端部分が開口窓４と反対方向へ略直角に折曲されている。
【００１９】
そして、配線器具２０の一部（器具本体２１の前面に突出するボス部２１ａ）を枠本体１の背面側から開口窓４に挿入するようにして一方の組立枠２２の溝部２２ａに側部２ａの係合突起５を係合させ、さらにその状態から器具本体２１を枠本体１の方へ押し付けていくと、他方の組立枠２２に突設されている一対の係止爪２２ｂ，２２ｂが係止片１０の湾曲部１２，１２における傾斜面１２ｂに当接し、湾曲部１２，１２が係止爪２２ｂ，２２ｂに押されて撓む。そこからさらに器具本体２１を枠本体１の方へ押し付ければ、やがて係止爪２２ｂ，２２ｂが湾曲部１２，１２を乗り越え、図７〜図９に示すように係止爪２２ｂ，２２ｂが係止片１０の係止部１４，１４に係止されて器具本体２１が取付枠Ａに取り付けられる。
【００２０】
一方、操作部１３を操作して開口窓４と反対側に押圧すれば、湾曲部１２，１２が撓んで係止部１４，１４と配線器具２０の係止爪２２ｂ，２２ｂとの係止が外れ、取付枠Ａから配線器具２０を取り外すことができる。すなわち、本実施形態の係止片１０には各固定部１１，１１から側部２ｂに略直交する方向へ延設されるとともに側部２ｂと交差するように湾曲した湾曲部１２，１２が設けてあるため、従来例の係止片４３に比較して有効長さ（所謂、ばねスパン）を長くして係止片１０のばね定数を小さくすることができる。その結果、操作部１３を手で操作することで湾曲部１２，１２を撓めることが可能となり、工具を使わずに手で簡単に配線器具２０を取付枠Ａから取り外すことができるのである。
【００２１】
また、本実施形態では枠本体１の側部２ｂに設けた貫通孔６に係止片１０の湾曲部１２，１２を挿通させているため、枠本体１の側部２ｂに対する係止片１０の配設スペースが縮小できて全体の小型化が図れるという利点がある。しかも、係止片１０の固定部１１，１１を湾曲部１２，１２に対して側部２ｂの開口窓４側に固定しているので、図６に示すように側部４１ｂの開口窓４０ａと反対側で係止片４３を固定していた従来例の幅寸法Ｌ２に比較して、係止片１０が固定される側の側部２ｂの幅寸法を低減することで枠本体１の幅寸法Ｌ１が低減できるという利点がある。さらに、側部２ｂに突設された固定用突起７を挿通孔１１ａに挿通し、この挿通孔１１ａから突出する固定用突起７の先端部をかしめることで固定部１１，１１を側部２ｂに固定するようにしているから、係止片４３を溶接等によって側部４１ｂに固定していた従来例に比較して枠本体１に対する係止片１０の固定が容易に行えるという利点がある。
【００２２】
（実施形態２）
図１０を参照して本発明の実施形態２を説明する。但し、本実施形態の基本的な構成は実施形態１と共通するので、共通する構成については同一の符号を付して説明を省略し、本実施形態の特徴となる構成についてのみ説明する。
【００２３】
本実施形態は、図１０に示すように実施形態１における３個の係止片１０の隣り合う固定部１１同士を繋ぐことで３個が一体となった係止片ブロック１０′を形成した点に特徴がある。なお、この係止片ブロック１０′も実施形態１の係止片１０と同様に、側部２ｂに突設された固定用突起７が挿通孔１１ａに挿通され、この挿通孔１１ａから突出する固定用突起７の先端部がかしめられることで固定部１１，１１が側部２ｂに固定される。
【００２４】
而して、本実施形態では実施形態１における３個の係止片１０が一体となった係止片ブロック１０′を形成したので、実施形態１のように複数個の係止片１０を別々に製造し且つ組み立てる場合に比較して部品コストの低減と組立効率の向上が図れるという利点がある。
【００２５】
なお、係止片ブロック１０′を用いずに実施形態１のように複数個の係止片１０を用いる場合には、係止片ブロック１０′に比較して係止片１０の形状が簡単になって製造コストを抑えることができるとともに、組立の際に部品を自動搬送する装置（所謂、パーツフィーダ）を使って係止片１０を搬送することができて組立が容易になるという利点がある。
【００２６】
（実施形態３）
図１１及び図１２を参照して本発明の実施形態３を説明する。但し、本実施形態の基本的な構成は実施形態１と共通するので、共通する構成については同一の符号を付して説明を省略し、本実施形態の特徴となる構成についてのみ説明する。
【００２７】
実施形態１又は２の取付枠Ａは、図１３に示した従来例と同様に、枠本体１の連結部３，３に設けられたねじ挿通孔３ａに取付ねじ５１を挿通し、この取付ねじ５１を埋込ボックス５０に設けられた舌片５０ａのねじ孔５０ｂに螺合することで埋込ボックス５０に取り付けられるのであるが、取付ねじ５１を締め付けたときに枠本体１が変形し、取付枠Ａの前面にプレート枠５２並びに化粧プレート５４を取り付けた際に配線器具２０の前面が化粧プレート５４の前面よりも沈み込んで見栄えが悪くなってしまう虞がある。
【００２８】
そこで本実施形態は、図１１及び図１２に示すように枠本体１の両側部２ａ，２ｂに曲げ部８を設けることで枠本体１の強度を向上させており、この点に本実施形態の特徴がある。なお、曲げ部８は、側部２ａ，２ｂの長手方向に沿った開口窓４側の端部が枠本体１の前方へ略直角に折曲されることで形成されている。
【００２９】
このように本実施形態では、枠本体１の両側部２ａ，２ｂに曲げ部８を設けたので、曲げ部８によって両側部２ａ，２ｂの強度を向上させ、取付ねじ５１を締め付けた場合の枠本体１の変形を防ぐことができる。
【００３０】
【発明の効果】
請求項１の発明は、上記目的を達成するために、対向する一対の側部並びに両側部を連結する連結部を有し側部と連結部とで囲まれた開口窓に配線器具の一部を挿入した形で当該配線器具を保持する枠本体と、枠本体を壁面のような造営面に固定する固定手段と、一方の側部から開口窓側へ突出し配線器具の側面に設けられた溝部に係合する係合突起と、他方の側部に設けられ配線器具の側面に突出する突出部に係脱自在に係止する係止片とを備え、係止片はばね性を有する部材により形成され、側部に固定される固定部と、固定部から側部に略直交する方向へ延設されるとともに側部と交差するように湾曲し且つその先端同士で橋架部により橋架された一対の湾曲部と、当該橋架部の中央端縁から突設され手で操作されて湾曲部を撓ませる操作部とを具備し、湾曲部は、枠本体の側部に設けられた貫通孔に挿通され、固定部の貫通孔側の端縁より側部に略直交する方向に立ち上がってから略半円状に湾曲し貫通孔を通って側部と交差し、さらに略Ｕ形に湾曲してなり、両湾曲部の先端部分を開口窓と反対方向へ折曲し側部の貫通孔の裏面側近傍に位置するような形状とすることで配線器具の突出部に係止される係止部が形成されるので、湾曲部によって係止片の有効長さ（所謂、ばねスパン）を従来例よりも長くして係止片のばね定数を小さくすることができ、その結果、操作部を手で操作することで湾曲部を撓めることが可能となり、係止片と配線器具の突出部との係止を外して工具を使わずに手で簡単に配線器具を取り外すことができるという効果がある。さらに、枠本体の側部に対する係止片の配設スペースが縮小できて全体の小型化が図れるという効果がある。
【００３２】
請求項２の発明は、係止片の固定部が湾曲部に対して側部の開口窓側に固定されて成るので、請求項１の発明の効果に加えて、係止片が固定される側の側部の幅寸法を低減することができるという効果がある。
【００３３】
請求項３の発明は、側部に突設された固定用突起を挿通する挿通孔が係止片の固定部に設けられ、挿通孔から突出する固定用突起の先端部がかしめられて成るので、請求項１の発明の効果に加えて、枠本体に対して係止片を容易に固定することができるという効果がある。
【００３４】
請求項４の発明は、枠本体が単位寸法の配線器具を複数個並べて保持できる寸法に形成され、複数個の配線器具の溝部に各々係合する複数の係合突起が一方の側部に設けられるとともに各配線器具の突出部に各々係止する複数個の係止片が他方の側部に設けられたので、請求項１の発明の効果に加えて、１つの枠本体に複数個の配線器具を一緒に並べて取り付けることができ、また、複数個の係止片を一体に形成する場合に比較して係止片の形状が簡単になって製造コストを抑えることができるとともに、組立の際にパーツフィーダを使って係止片を搬送することができて組立が容易になるという効果がある。
【００３５】
請求項５の発明は、枠本体が単位寸法の配線器具を複数個並べて保持できる寸法に形成され、一方の側部に設けられて複数個の配線器具の溝部に各々係合する複数の係合突起と、他方の側部に設けられ各配線器具の突出部に各々係止する複数個の係止片とを備え、これら複数個の係止片が一体に形成されたので、請求項１の発明の効果に加えて、１つの枠本体に複数個の配線器具を一緒に並べて取り付けることができ、また、複数個の係止片を別々に製造し且つ組み立てる場合に比較して部品コストの低減と組立効率の向上が図れるという効果がある。
【００３６】
請求項６の発明は、固定手段は枠本体を埋込ボックスに取り付けるための取付ねじが挿通されるねじ挿通孔から成り、枠本体の両側部に曲げ部が設けられたので、請求項１の発明の効果に加えて、曲げ部によって両側部の強度を向上させ、取付ねじを締め付けた場合の枠本体の変形を防ぐことができるという効果がある。
【図面の簡単な説明】
【図１】実施形態１を示し、（ａ）は分解斜視図、（ｂ）は斜視図である。
【図２】同上を示し、（ａ）は正面図、（ｂ）は側面図、（ｃ）は他の方向から見た側面図である。
【図３】同上の正面図である。
【図４】図３におけるＸ−Ｘ線断面矢視図である。
【図５】同上における係止片の固定方法を説明するための説明図である。
【図６】同上の説明図である。
【図７】同上の配線器具を取り付けた状態を示し、（ａ）は正面図、（ｂ）は側面図、（ｃ）は他の方向から見た側面図である。
【図８】同上の配線器具を取り付けた状態の正面図である。
【図９】図８におけるＹ−Ｙ線断面矢視図である。
【図１０】実施形態２を示し、（ａ）は分解斜視図、（ｂ）は斜視図である。
【図１１】実施形態３の斜視図である。
【図１２】同上の側面図である。
【図１３】従来例を示す斜視図である。
【図１４】他の従来例を示す一部省略した斜視図である。
【図１５】同上における係止片の斜視図である。
【図１６】同上の要部断面図である。
【図１７】同上の取付状態を示す概略断面図である。
【符号の説明】
Ａ配線器具用取付枠
１枠本体
２ａ，２ｂ側部
３連結部
４開口窓
５係合突起
１０係止片
１１固定部
１２湾曲部
１３操作部
１４係止部[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a wiring device mounting frame used for embedding wiring devices such as switches and outlets on a construction surface such as a wall surface.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in order to bury a wiring device such as a switch or an outlet on a construction surface such as a wall surface, a metal wiring device mounting frame as shown in FIG. 13 (hereinafter, abbreviated as “mounting frame”). 30 are used. The mounting frame 30 is mounted on the opening side of an embedding box 50 buried in the wall by mounting screws (box screws) 51, 51, and a synthetic resin plate frame 52 is mounted on the front surface by screws 53, 53. At the same time, the decorative plate 54 is attached to the front surface of the plate frame 52. Engagement projections 32a and 32b are provided on both sides 31a and 31b of the mounting frame 30 to engage with grooves 22a provided on the assembly frames 22 and 22 of the wiring device 20, and a groove is formed on one side 31b. A hole 33 is provided, and a thin portion 34 is formed between the hole 33 and the opening window 30a. Here, the wiring device 20 is mounted on the mounting frame 30 by inserting a part of the wiring device 20 into the opening window 30a of the mounting frame 30 so that the engagement protrusion 32a of one side 31a is mounted on one side of the assembly frame. The thin portion 34 is projected and deformed by inserting a tool such as a screwdriver into the slot 33 to squeeze the engagement portion 32b of the other side portion 31b of the assembly frame 22 on the opposite side. This is performed by engaging with the groove 22a. In this device, when the wiring device 20 is mounted on the mounting frame 30, the operator manually positions and holds the wiring device 20 in a state where a part of the wiring device 20 is inserted into the opening window 30 a of the mounting frame 30 while holding the driver. The thin part 34 must be protruded and deformed by the tool described above, and there is a problem that workability is poor.
[0003]
Therefore, a mounting frame 40 as shown in FIG. 14 has already been proposed to solve the above problem (see Japanese Utility Model Publication No. 58-52816). The attachment frame 40 is provided on one side 41a with an engagement protrusion 42a that engages with a groove 22a provided in the assembly frame 22 of the wiring device 20, and a locking piece 43 as shown in FIGS. Is protruded from a through hole 44 provided in the other side portion 41b in an upright state, and the locking portion 43a of the locking piece 43 is inserted into the notch 23 below the locking claw 22b of the assembly frame 22. I can do it.
[0004]
Thus, the engaging projection 42a of the mounting frame 40 is engaged with the groove 22a of one of the assembly frames 22 by inserting a part of the wiring device 20 into the opening window 40a of the mounting frame 40. The stop piece 43 enters the notch 23, the locking portion 43 a enters the recess 24 of the wiring device 20 below the locking claws 22 b, 22 b, and the wiring device 20 is attached to the mounting frame 40. That is, unlike the conventional example described above, the wiring device 20 can be easily mounted on the mounting frame 40 without using a tool such as a driver.
[0005]
[Problems to be solved by the invention]
However, in the latter conventional example, when the wiring device 20 is detached from the mounting frame 40, the hooking portion 43b of the locking piece 43 is pressed by the driver 60 as shown in FIG. 43a and the locking pawls 22b, 22b were released. That is, the effective length (so-called spring span) of the locking piece 43 is short and the spring constant is large due to its shape, the dimension of the hooking-off portion 43b, and the like, so that the locking piece 43 is manually bent in the unlocking direction. And required tools such as a screwdriver, which was inconvenient.
[0006]
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a wiring device mounting frame that allows a user to easily remove a wiring device by hand without using a tool.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 includes a pair of side portions facing each other and a connecting portion connecting the both side portions, and a part of the wiring device is provided in an open window surrounded by the side portions and the connecting portion. A frame body that holds the wiring device in a form in which the wiring device is inserted, fixing means for fixing the frame body to a construction surface such as a wall surface, and a groove protruding from one side to the opening window side and provided on a side surface of the wiring device. An engaging projection is provided on the other side, and a locking piece is provided on the other side of the wiring device so as to be releasably locked to a protrusion protruding from a side surface of the wiring device. The locking piece is formed of a member having spring properties. And a fixed portion fixed to the side portion, a pair of a pair extending in a direction substantially perpendicular to the side portion from the fixed portion, curved so as to intersect with the side portion, and bridged by a bridge portion at the ends thereof . a curved portion, to deflect the bending portion is operated by hand is protruded from the center edge of the bridges And a bent portion is inserted into a through hole provided in a side portion of the frame main body, and rises in a direction substantially orthogonal to the side portion from an end edge of the fixed portion on the side of the through hole, and then is substantially semicircular. It crosses the side part through the through hole and further curves in a substantially U-shape, and the front end portions of both the bent parts are bent in the opposite direction to the opening window, and the vicinity of the back side of the through hole in the side part The shape is such that a locking portion is formed to be locked to the protruding portion of the wiring device, and the effective length (so-called spring span) of the locking piece is conventionally determined by the curved portion. By making it longer than in the example, the spring constant of the locking piece can be reduced. As a result, it becomes possible to bend the curved part by operating the operation part by hand, and to release the lock between the locking piece and the protruding part of the wiring equipment, and to easily perform wiring equipment by hand without using a tool. Can be removed. Further, the space for disposing the locking pieces with respect to the side portions of the frame body can be reduced, and the overall size can be reduced.
[0009]
According to a second aspect of the present invention, in the first aspect of the present invention, the fixing portion of the locking piece is fixed to the side of the opening window with respect to the curved portion. As a result, the width of the side on which the locking piece is fixed can be reduced.
[0010]
According to a third aspect of the present invention, in the first aspect of the present invention, an insertion hole through which the fixing protrusion protruding from the side portion is inserted is provided in the fixing portion of the locking piece, and a tip of the fixing protrusion protruding from the insertion hole. The portion is caulked, and in addition to the function of the first aspect of the invention, the locking piece can be easily fixed to the frame body.
[0011]
According to a fourth aspect of the present invention, in the first aspect of the present invention, the frame main body is formed to have a size capable of holding a plurality of unit-sized wiring devices side by side, and a plurality of engagement projections respectively engaged with the grooves of the plurality of wiring devices. Are provided on one side, and a plurality of locking pieces are provided on the other side, each locking to a protrusion of each wiring device. A plurality of wiring devices can be mounted side by side on one frame body, and the shape of the locking pieces is simpler than in the case where a plurality of locking pieces are integrally formed, so that the manufacturing cost is increased. Can be suppressed, and at the time of assembling, the locking pieces can be transported using the parts feeder, which facilitates the assembling.
[0012]
According to a fifth aspect of the present invention, in the first aspect of the present invention, the frame main body is formed to have a size capable of holding a plurality of unit-sized wiring devices side by side, and is provided on one side to be provided in each of the grooves of the plurality of wiring devices. A plurality of engaging projections to be engaged, and a plurality of engaging pieces provided on the other side and respectively engaging with the protruding parts of the respective wiring devices, wherein the plurality of engaging pieces are integrally formed. In addition to the functions of the invention of claim 1, a plurality of wiring devices can be mounted side by side on one frame body, and a plurality of locking pieces are manufactured separately. Compared with the case of assembling, the cost of parts can be reduced and the efficiency of assembly can be improved.
[0013]
According to a sixth aspect of the present invention, in the first aspect of the present invention, the fixing means comprises a screw insertion hole through which a mounting screw for mounting the frame main body to the embedding box is inserted, and bent portions are provided on both sides of the frame main body. In addition to the effect of the first aspect of the present invention, the strength of both sides can be improved by the bent portion, and the deformation of the frame main body when the mounting screw is tightened can be prevented.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
(Embodiment 1)
Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS.
[0015]
As shown in FIGS. 1 to 3, the frame main body 1 of the wiring device mounting frame (hereinafter, abbreviated as “mounting frame”) A of the present embodiment is made of metal, and has a pair of opposed side portions 2a and 2b. It is formed in a rectangular frame shape having connecting portions 3 connecting the side portions 2a and 2b, and an opening window 4 surrounded by the side portions 2a 2b and the connecting portions 3 and 3. Further, each of the connecting portions 3 has an elongated screw insertion hole 3a through which an attachment screw 51 (see FIG. 13) for attaching the frame body 1 to the embedding box 50 is inserted, and a wall forming a wall surface. Screw holes into which screw clamps 3b, 3b for fixing a clip (not shown) for attaching the frame body 1 to a wall material such as a panel and screws 53 for attaching the plate frame 52 are screwed. 3c is provided.
[0016]
The pair of side portions 2a and 2b have their outer edges (opposite to the opening window 4) along the longitudinal direction bent forward, and the inner sides (opening window 4) along the longitudinal direction of one side portion 2a. At the edge of the wiring device 20, three engaging projections 5 projecting toward the opening window 4 and engaging with the grooves 22a provided in the assembly frame 22 of the wiring device 20 are provided at equal intervals along the longitudinal direction. It is. Here, in the present embodiment, three standardized wiring devices of one module size (for example, a large-sized continuous wiring device (see JIS C 8304) specified in Japanese Industrial Standards) are arranged in the short width direction. The dimensions of the frame body 1 and the opening window 4 are set so that they can be attached.
[0017]
On the other side 2b, three slit-shaped through holes 6 are arranged in a row along the longitudinal direction. As shown in FIG. The piece 10 is fixed to the side 2b.
[0018]
The locking piece 10 is formed of a flexible (springy) plate-shaped metal member, and fixed portions 11, 11 fixed to the side portion 2b as shown in FIGS. Bending portions 12 and 12 extending from 11 and 11 in a direction substantially orthogonal to the side portion 2b and curved so as to intersect with the side portion 2b and having a leading end bridged by a bridge portion 12a; And an operating portion 13 protruding from the tip (the center edge of the bridge portion 12a). The fixing portions 11, 11 are provided with insertion holes 11a through which the fixing protrusions 7 projecting from the side portions 2b are inserted, and as shown in FIG. 5, the tips of the fixing protrusions 7 inserted through the insertion holes 11a and protruding. The fixing portions 11, 11 are fixed to the side portions 2b by caulking the portions. As shown in FIG. 4, the curved portions 12, 12 rise from the edges of the fixing portions 11, 11 on the side of the through hole 6 in a direction substantially perpendicular to the side portion 2 b, and then bend in a substantially semicircular shape to form the through hole 6. The side portion 2b passes through the side portion 2b, and is curved in a substantially U-shape so that the tip portion is located near the back surface side of the through hole 6 of the side portion 2b. Here, the locking portions 14, 14 are formed by bending the distal end portions of the curved portions 12, 12 at a substantially right angle in a direction opposite to the opening window 4. The operating portion 13 projects through the through hole 6 of the side portion 2b from between the curved portions 12, 12 to a position beyond the semicircular portion of the curved portions 12, 12, and the tip portion is opposite to the opening window 4. It is bent at right angles to the direction.
[0019]
Then, a side portion 2a is inserted into the groove 22a of one of the assembly frames 22 by inserting a part of the wiring device 20 (a boss 21a projecting from the front surface of the device main body 21) into the opening window 4 from the rear side of the frame main body 1. When the tool main body 21 is further pressed toward the frame main body 1 from this state, a pair of locking claws 22 b projecting from the other assembly frame 22 are engaged. The abutment 10 comes into contact with the inclined surfaces 12b of the curved portions 12, 12, and the curved portions 12, 12 are bent by being pushed by the locking claws 22b, 22b. Then, when the device main body 21 is further pressed toward the frame main body 1, the locking claws 22b, 22b eventually get over the curved portions 12, 12, and the locking claws 22b, 22b are engaged as shown in FIGS. The device main body 21 is fixed to the mounting frame A by being locked by the locking portions 14 of the stopper 10.
[0020]
On the other hand, if the operating portion 13 is operated and pressed against the opening window 4, the curved portions 12, 12 bend and the locking portions 14, 14 and the locking claws 22 b, 22 b of the wiring device 20 are locked. The wiring device 20 can be removed from the mounting frame A. That is, the locking pieces 10 of the present embodiment are provided with the curved portions 12, 12 that extend from the respective fixed portions 11, 11 in a direction substantially orthogonal to the side portion 2 b and are curved so as to intersect with the side portion 2 b. Therefore, the effective length (so-called spring span) can be made longer and the spring constant of the locking piece 10 can be reduced as compared with the locking piece 43 of the conventional example. As a result, the bending portions 12, 12 can be bent by operating the operation portion 13 by hand, and the wiring device 20 can be easily removed from the mounting frame A by hand without using a tool. .
[0021]
Further, in the present embodiment, since the curved portions 12, 12 of the locking piece 10 are inserted into the through holes 6 provided in the side 2 b of the frame main body 1, the locking piece 10 is fixed to the side 2 b of the frame main body 1. There is an advantage that the installation space can be reduced and the overall size can be reduced. In addition, since the fixing portions 11, 11 of the locking piece 10 are fixed to the opening windows 4 of the side portion 2b with respect to the curved portions 12, 12, as shown in FIG. The width of the frame body 1 is reduced by reducing the width of the side portion 2b on the side to which the locking piece 10 is fixed as compared with the width L2 of the conventional example in which the locking piece 43 is fixed on the opposite side. There is an advantage that L1 can be reduced. Further, the fixing projections 7 protruding from the side 2b are inserted into the insertion holes 11a, and the front ends of the fixing projections 7 protruding from the insertion holes 11a are swaged, so that the fixing sections 11, 11 are fixed to the side 2b. Therefore, there is an advantage that the locking piece 10 can be easily fixed to the frame body 1 as compared with the conventional example in which the locking piece 43 is fixed to the side portion 41b by welding or the like.
[0022]
(Embodiment 2)
Embodiment 2 of the present invention will be described with reference to FIG. However, since the basic configuration of this embodiment is the same as that of the first embodiment, the same components are denoted by the same reference numerals and description thereof will be omitted, and only the configuration that is a feature of the present embodiment will be described.
[0023]
In the present embodiment, as shown in FIG. 10, three fixing pieces 10 of Embodiment 1 are connected to each other by connecting adjacent fixing portions 11 to form a locking piece block 10 'in which three pieces are integrated. There is a feature. In this locking piece block 10 ', similarly to the locking piece 10 of the first embodiment, the fixing projection 7 protruding from the side portion 2b is inserted into the insertion hole 11a, and the fixing piece protruding from the insertion hole 11a. The fixing portions 11, 11 are fixed to the side portion 2b by caulking the tip of the use projection 7.
[0024]
Thus, in the present embodiment, the locking piece block 10 ′ in which the three locking pieces 10 of the first embodiment are integrated is formed, so that a plurality of locking pieces 10 are separately provided as in the first embodiment. There is an advantage that parts cost can be reduced and assembling efficiency can be improved as compared with the case of manufacturing and assembling.
[0025]
When a plurality of locking pieces 10 are used as in the first embodiment without using the locking piece block 10 ', the shape of the locking piece 10 is simpler than that of the locking piece block 10'. In addition, the manufacturing cost can be reduced, and at the same time, there is an advantage that the locking piece 10 can be transported by using an apparatus (a so-called parts feeder) for automatically transporting the parts during the assembly, thereby facilitating the assembly. .
[0026]
(Embodiment 3)
Embodiment 3 of the present invention will be described with reference to FIGS. However, since the basic configuration of this embodiment is the same as that of the first embodiment, the same components are denoted by the same reference numerals and description thereof will be omitted, and only the configuration that is a feature of the present embodiment will be described.
[0027]
The mounting frame A according to the first or second embodiment has a mounting screw 51 inserted into a screw insertion hole 3a provided in the connecting portion 3 of the frame body 1 in the same manner as the conventional example shown in FIG. 51 is attached to the embedding box 50 by screwing it into a screw hole 50b of a tongue piece 50a provided in the embedding box 50. When the mounting screw 51 is tightened, the frame body 1 is deformed, and When the plate frame 52 and the decorative plate 54 are attached to the front surface of the frame A, the front surface of the wiring device 20 may sink below the front surface of the decorative plate 54, resulting in a poor appearance.
[0028]
Therefore, in the present embodiment, the strength of the frame body 1 is improved by providing bent portions 8 on both sides 2a and 2b of the frame body 1 as shown in FIGS. 11 and 12. There are features. The bent portion 8 is formed by bending the ends of the side portions 2a and 2b on the side of the opening window 4 along the longitudinal direction at substantially right angles forward of the frame body 1.
[0029]
As described above, in the present embodiment, the bent portions 8 are provided on the both sides 2a, 2b of the frame body 1, so that the strength of the both sides 2a, 2b is improved by the bent portions 8, and the frame when the mounting screws 51 are tightened. The deformation of the main body 1 can be prevented.
[0030]
【The invention's effect】
In order to achieve the above object, the invention according to claim 1 includes a pair of side portions facing each other and a connecting portion connecting the both side portions, and a part of the wiring device is provided in an open window surrounded by the side portions and the connecting portion. A frame body that holds the wiring device in a form in which the wiring device is inserted, fixing means for fixing the frame body to a construction surface such as a wall surface, and a groove protruding from one side to the opening window side and provided on a side surface of the wiring device. An engaging projection is provided on the other side, and a locking piece is provided on the other side of the wiring device so as to be releasably locked to a protrusion protruding from a side surface of the wiring device. The locking piece is formed of a member having spring properties. And a fixed portion fixed to the side portion, a pair of a pair extending in a direction substantially perpendicular to the side portion from the fixed portion, curved so as to intersect with the side portion, and bridged by a bridge portion at the ends thereof . a curved portion, to deflect the bending portion is operated by hand is protruded from the center edge of the bridges And a bent portion is inserted into a through hole provided in a side portion of the frame main body, and rises in a direction substantially orthogonal to the side portion from an end edge of the fixed portion on the side of the through hole, and then is substantially semicircular. It crosses the side part through the through hole and further curves in a substantially U-shape, and the front end portions of both the bent parts are bent in the opposite direction to the opening window, and the vicinity of the back side of the through hole in the side part In this case, the locking portion is formed so as to be locked to the projecting portion of the wiring device, so that the effective length (the so-called spring span) of the locking piece is reduced by the curved portion as compared with the conventional example. By increasing the length, the spring constant of the locking piece can be reduced, and as a result, it is possible to flex the curved portion by manually operating the operating portion, and the connection between the locking piece and the protruding portion of the wiring device. There is an effect that the wiring device can be easily removed by hand without using a tool by releasing the lock. Further, there is an effect that the space for disposing the locking pieces with respect to the side portions of the frame body can be reduced, and the overall size can be reduced.
[0032]
According to the second aspect of the present invention, since the fixing portion of the locking piece is fixed to the side of the opening window with respect to the curved portion, in addition to the effect of the first aspect, the side where the locking piece is fixed is provided. Has an effect that the width dimension of the side portion can be reduced.
[0033]
According to the third aspect of the present invention, an insertion hole through which the fixing projection projecting from the side is inserted is provided in the fixing portion of the locking piece, and the tip of the fixing projection projecting from the insertion hole is caulked. In addition to the effects of the first aspect, there is an effect that the locking piece can be easily fixed to the frame body.
[0034]
According to a fourth aspect of the present invention, the frame main body is formed to have a size capable of holding a plurality of wiring devices of a unit size in a row, and a plurality of engaging projections respectively engaging with the grooves of the plurality of wiring devices are provided on one side. A plurality of locking pieces are provided on the other side of the wiring device, and each of the locking pieces is locked on the protruding portion of each wiring device. The devices can be mounted side by side together, and the shape of the locking pieces can be simplified as compared with the case where a plurality of locking pieces are integrally formed, so that the manufacturing cost can be suppressed and the assembly cost can be reduced. In addition, the locking piece can be transported by using the parts feeder, and the assembly is facilitated.
[0035]
According to a fifth aspect of the present invention, the frame main body is formed to have a size capable of holding a plurality of wiring devices of a unit size in a row, and is provided on one side and is engaged with the grooves of the plurality of wiring devices. A projection and a plurality of locking pieces provided on the other side and respectively locking to the protruding portions of the respective wiring instruments, and the plurality of locking pieces are integrally formed. In addition to the effects of the invention, a plurality of wiring devices can be mounted side by side on one frame body, and the cost of parts can be reduced as compared with a case where a plurality of locking pieces are separately manufactured and assembled. This has the effect of improving the assembly efficiency.
[0036]
According to a sixth aspect of the present invention, the fixing means comprises a screw insertion hole through which a mounting screw for mounting the frame main body to the embedding box is inserted, and bending portions are provided on both side portions of the frame main body. In addition to the effects of the invention, there is an effect that the strength of both sides is improved by the bent portion, and the deformation of the frame body when the mounting screw is tightened can be prevented.
[Brief description of the drawings]
FIGS. 1A and 1B show an embodiment 1, wherein FIG. 1A is an exploded perspective view and FIG. 1B is a perspective view.
2 (a) is a front view, FIG. 2 (b) is a side view, and FIG. 2 (c) is a side view as viewed from another direction.
FIG. 3 is a front view of the same.
FIG. 4 is a sectional view taken along line XX in FIG. 3;
FIG. 5 is an explanatory diagram for describing a method of fixing the locking pieces in the above.
FIG. 6 is an explanatory diagram of the above.
7A and 7B show a state in which the wiring device is attached, wherein FIG. 7A is a front view, FIG. 7B is a side view, and FIG. 7C is a side view seen from another direction.
FIG. 8 is a front view showing a state where the wiring device is attached.
9 is a sectional view taken along the line YY in FIG.
10A and 10B show the second embodiment, in which FIG. 10A is an exploded perspective view, and FIG. 10B is a perspective view.
FIG. 11 is a perspective view of a third embodiment.
FIG. 12 is a side view of the same.
FIG. 13 is a perspective view showing a conventional example.
FIG. 14 is a partially omitted perspective view showing another conventional example.
FIG. 15 is a perspective view of the locking piece in the same.
FIG. 16 is a sectional view of a main part of the above.
FIG. 17 is a schematic sectional view showing an attached state of the above.
[Explanation of symbols]
A Attaching frame for wiring device 1 Frame body 2a, 2b Side portion 3 Connecting portion 4 Open window 5 Engagement projection 10 Locking piece 11 Fixed portion 12 Curved portion 13 Operating portion 14 Locking portion

Claims

A frame body that has a pair of opposed side portions and a connecting portion that connects both side portions, and holds the wiring device in a form where a part of the wiring device is inserted into an opening window surrounded by the side portion and the connecting portion, A fixing means for fixing the frame body to a construction surface such as a wall surface, an engaging projection projecting from one side to the opening window side and engaging with a groove provided on a side surface of the wiring device, and provided on the other side. A locking piece is provided for locking and disengaging from a protruding portion protruding from a side surface of the wiring device. The locking piece is formed of a member having spring properties, and a fixing portion fixed to the side portion and a fixing portion are provided. A pair of curved portions that extend in a direction substantially perpendicular to the side portion, are curved so as to intersect with the side portion, and are bridged at their distal ends by a bridge portion, and protrude from a central edge of the bridge portion. An operating section that is operated by hand to bend the bending section, and the bending section is provided on a side of the frame body. And then rises in a direction substantially perpendicular to the side portion from the edge of the fixed portion on the side of the through hole, curves substantially in a semicircular shape, intersects the side portion through the through hole, and further has a substantially U shape. It is bent into a shape, and the tip of both curved parts is bent in the direction opposite to the opening window and shaped so that it is located near the back side of the through hole on the side, it is locked to the projecting part of the wiring equipment A mounting frame for a wiring device, wherein a locking portion is formed.

2. The mounting frame according to claim 1, wherein the fixing portion of the locking piece is fixed to the side of the opening window with respect to the curved portion.

2. An insertion hole through which a fixing projection projecting from a side portion is inserted is provided in a fixing portion of the locking piece, and a tip end of the fixing projection projecting from the insertion hole is caulked. The mounting frame for the wiring device as described.

The frame body is formed to have a size capable of holding a plurality of wiring devices of a unit size in a row, and a plurality of engaging projections respectively engaging with grooves of the plurality of wiring devices are provided on one side, and the protrusion of each wiring device is provided. The mounting frame for a wiring device according to claim 1, wherein a plurality of locking pieces each locking to the portion are provided on the other side.

The frame main body is formed to have a size capable of holding a plurality of wiring devices of a unit size in a row, a plurality of engagement protrusions provided on one side and respectively engaging with grooves of the plurality of wiring devices, and the other side portion. 2. A wiring device according to claim 1, further comprising a plurality of locking pieces provided on the projections of the wiring tool and locking the projections of the wiring tool, respectively, and the plurality of locking pieces are integrally formed. Mounting frame.

2. The wiring device according to claim 1, wherein the fixing means comprises screw insertion holes through which mounting screws for mounting the frame main body to the embedding box are inserted, and bent portions are provided on both sides of the frame main body. Mounting frame.