JP2004178941A

JP2004178941A - Quick connecting device and wiring accessories

Info

Publication number: JP2004178941A
Application number: JP2002342948A
Authority: JP
Inventors: Minoru Honda; 稔本田; Naoki Kanemoto; 直樹金本
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 2002-11-26
Filing date: 2002-11-26
Publication date: 2004-06-24
Anticipated expiration: 2022-11-26
Also published as: JP3975897B2

Abstract

PROBLEM TO BE SOLVED: To prevent the deformation of a locking part when the connected state of an electric wire is released. SOLUTION: A releasing button 60 is made from a synthetic resin molding, and formed by unitedly molding a driving part 62 projecting sideward from one end on one side of an operating part 61; an arm part 63 projecting sideward from the other end on the other side; and a pressing projecting part 64 projecting toward the driving part 62 from the tip of the arm part 63. Since the tip of a locking part 44a of a terminal plate 41 is pressed with the pressing projecting part 64 installed at the tip of the arm part 63 of the releasing button 60, compared with pressing of a locking piece 44 in a position apart from the locking part 44a, the deformation (plastic deformation) of the locking part 44a (a locking piece 44) can be prevented when the connected state of the electric wire is released. COPYRIGHT: (C)2004,JPO

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の器体に収納されて電線を接続する速結端子装置並びに配線器具に関するものである。
【０００２】
【従来の技術】
従来から、スイッチやコンセントのような配線器具において、器体に設けた電線挿入孔を通して器体に導入された電線を接続するために速結端子が広く用いられている。この種の速結端子としては、図６９に示すように、器体３００に収納され電線挿入孔３０１を通して器体３００に導入された電線１０１に接触する端子板３０２と、端子板３０２との間で電線を挟持する鎖錠ばね３０３とを備えるものが知られている（例えば、特許文献１参照）。鎖錠ばね３０３は板ばねであって、鎖錠ばね３０３に設けた接触片３０３ａおよび鎖錠片３０３ｂと端子板３０２との間に電線１０１を挟持することによって電線１０１を保持するように形成されている。つまり、器体３００に設けた電線挿入孔３０１を通して電線１０１を器体３００に導入すると、電線１０１が接触片３０３ａおよび鎖錠片３０３ｂを端子板３０２から引き離す向きに撓ませ、接触片３０３ａおよび鎖錠片３０３ｂに生じるばね力によって電線１０１が端子板３０２と鎖錠片３０３ｂとの間に挟持されるように構成されている。ここに、電線１０１が端子板３０２と接触片３０３ａおよび鎖錠片３０３ｂとの間に挟持された状態では、接触片３０３ａおよび鎖錠片３０３ｂの端縁が電線１０１に弾接し、電線１０１の一部に鎖錠片３０３ｂが食い込むことによって電線１０１の抜け止めがなされる。このように、電線１０１を電線挿入孔３０１に挿入するだけで端子板３０２に電線１０１が接触した状態で保持されるから、端子ねじを用いて電線１０１を接続する構造に比較すると電線１０１の結線作業が容易になる。
【０００３】
ところで、図７０に示すように器体３００の後壁には操作孔３０４が貫設され、この操作孔３０４の奥側における器体３００の内部に解除釦３０５が収納配置される。図７１に示すように、解除釦３０５は鎖錠ばね３０３の横に配置され、鎖錠ばね３０３の鎖錠片３０３ｂの後面側に当接する押し片３０５ａが側面から突出する形状を有する。操作孔３０４はマイナスドライバの先端部のような工具３１０が挿入可能となる形状を有し、工具２１０を操作孔３０４に挿入して解除釦３０５を前方に押圧すると、鎖錠片３０３ｂが押し片３０５ａから押圧力を受けることにより電線１０１から離れる向きに撓むようにしてある。したがって、電線１０１を接続した状態で操作孔３０４に工具を挿入して解除釦３０５を押圧すれば、鎖錠片３０３ｂが電線１０１から離れるように撓んで電線１０１の機械的保持が解除され、電線１０１を器体３００から引き抜くことが可能になる。
【０００４】
【特許文献１】
特開２００１−２１０３９３号公報（第４−６頁、第３図）
【０００５】
【発明が解決しようとする課題】
ところで、上記従来例では、鎖錠ばね３０３の鎖錠片３０３ｂが解除釦３０５の押し片３０５ａから押圧力を受ける位置が先端よりも接触片３０３ａ寄りにずれており、鎖錠片３０３ｂを撓ませるのに相対的に大きな押圧力が必要になるとともにその押圧力により鎖錠片３０３ｂが変形してしまう虞があった。
【０００６】
本発明は上記事情に鑑みて為されたものであり、その目的は、電線の接続状態を解除する際に鎖錠部が変形するのを防ぐことができる速結端子装置並びに配線器具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、配線器具の器体に貫設した電線挿入孔を通して器体に導入される電線に接触する端子板と、電線と端子板を接続する接続手段と、接続手段による接続状態を解除する解除手段とを備え、接続手段は、端子板の方へ突出し端子板との間に挿入される電線を端子板に押圧する押圧部と、先端が電線の一部に食い込んで反挿入方向へ電線を抜け止めする鎖錠部とを有し、解除手段は、操作されたときに鎖錠部の先端を押動して電線から引き離す押動突部を有することを特徴とする。
【０００８】
請求項２の発明は、請求項１の発明において、解除手段は、器体の表面に露出して手動操作される操作部並びに前記押動突部を有し、接続手段により電線が端子板に接続された接続状態のときの接続位置と電線が端子板に接続されていない非接続状態のときの非接続位置との間で移動自在に器体に配設される解除釦と、解除釦を接続位置から非接続位置に弾性付勢する付勢部材とを具備することを特徴とする。
【０００９】
請求項３の発明は、請求項２の発明において、解除釦は、一端側に押動突部が設けられ、他端側が支持されて揺動自在に器体に配設されたことを特徴とする。
【００１０】
請求項４の発明は、請求項２又は３の発明において、解除釦の付勢部材が当接する部位を付勢部材による付勢向きにくぼませたことを特徴とする。
【００１１】
請求項５の発明は、請求項２又は３又は４の発明において、押動突部が設けられた解除釦の一端側に操作部が設けられたことを特徴とする。
【００１２】
請求項６の発明は、請求項２又は３又は４の発明において、解除釦の操作部以外の部位であって器体の外に露出する部位に、配線器具が取り付けられる取付部材に対する逃げが設けられたことを特徴とする。
【００１３】
請求項７の発明は、請求項１〜６の何れかの発明において、押動突部と係合して解除釦を仮止めする係合部が端子板に設けられたことを特徴とする。
【００１４】
請求項８の発明は、請求項７の発明において、押動突部を係合部へ係合する向き並びに係合部との係合が外れる向きに案内するガイド面が押動突部に設けられたことを特徴とする。
【００１５】
請求項９の発明は、請求項２の発明において、少なくとも電線挿入孔が開口する器体の一面から見たときに非接続位置の解除釦を視認可とし接続位置の解除釦を視認不可とする段差が器体に設けられたことを特徴とする。
【００１６】
請求項１０の発明は、請求項３の発明において、解除釦を複数の方向で移動自在としたことを特徴とする。
【００１７】
請求項１１の発明は、請求項１０の発明において、解除釦の反操作方向への倒れを防ぐ倒れ防止手段を備えたことを特徴とする。
【００１８】
請求項１２の発明は、請求項１０又は１１の発明において、器体に収納される配線部材を逃がす逃がし部が解除釦に設けられたことを特徴とする。
【００１９】
請求項１３の発明は、請求項１の発明において、解除釦は、鎖錠部の押動方向と直交する方向の両端部近傍をそれぞれ押動する複数の押動突部が設けられてなることを特徴とする。
【００２０】
請求項１４の発明は、請求項２の発明において、端子板を挟み込んで端子板に固定される固定部が付勢部材に設けられたことを特徴とする。
【００２１】
請求項１５の発明は、請求項１４の発明において、それぞれに電線が接続される２つの端子板が一体に形成され、個々の端子板に対応する２つの解除釦を弾性付勢する２つの付勢部材を有し、個別に形成された付勢部材の固定部が固定される被固定部と、２つが一体に形成された付勢部材の固定部が固定される被固定部とが端子板に設けられたことを特徴とする。
【００２２】
請求項１６の発明は、上記目的を達成するために、施工面に設けられる埋込孔に後部を埋め込む形で配設される器体と、器体に収納される請求項１〜１５の何れかに記載された速結端子装置と、器体の側面に設けられ埋込孔の周りに設置される取付枠又は取付枠一体型のプレートに器体を取り付ける取付手段とを備えたことを特徴とする。
【００２３】
請求項１７の発明は、請求項１６の発明において、施工されるまでの間だけ器体の電線挿入孔に挿入されて解除釦を接続位置に固定する固定ピンを備えたことを特徴とする。
【００２４】
【発明の実施の形態】
以下、本発明をコンセントに適用した実施形態について図面を参照して詳細に説明する。但し、配線器具はコンセントに限定されるものではなく、例えばスイッチなどのコンセント以外の配線器具にも本発明の技術思想が適用可能であることは言うまでもない。
【００２５】
（実施形態１）
図１〜図３に示すように、器体１は耐トラッキング性に優れた熱硬化性合成樹脂（例えば、ユリア樹脂）を用いて前面が開放された直方体状に形成されたボディ１０と、同じく耐トラッキング性に優れた熱硬化性合成樹脂（例えば、ユリア樹脂）を用いて後面が開放された直方体状に形成されたカバー２０とを結合することにより形成される。器体１は後述する規定の単位寸法を有している。
【００２６】
ボディ１０は長手方向の中間部に設けた仕切壁１２により内部空間が２分されている。また、後述するようにカバー２０内に収納される中枠１８０に仕切壁１８０ａが形成されており（図１１参照）、ボディ１０とカバー２０とを結合するとボディ１０の仕切壁１２とカバー２０内に収納された中枠１８０の仕切壁１８０ａとが突き合わされることによって器体１の内部空間が独立した２室に分割される。
【００２７】
ボディ１０内において仕切壁１２を介して形成された各収納室１３には、プラグの栓刃を受ける刃受３１がそれぞれ収納される。各刃受３１は、図７に示すように互いに対向する先端部にて栓刃を挟持する一対の刃受ばね３２と、両刃受ばね３２の一方の側面同士を連続一体に結合するコ字状の連結片３４と、連結片３４より突出し両刃受ばね３２の前記側面に対向する刃受ばね３３とを備える。また、連結片３４には円筒形の４つの突起３４ａが列設されており、各一対の突起３４ａにそれぞれ後述する端子板４１がかしめ固定される。
【００２８】
端子部４０は、端子板４１並びに解除釦６０で構成される。端子板４１は、図８（ａ）に示すように略Ｌ字形の主片４２と、主片４２の幅細の一端側から後方（図８（ｂ）における下方、以下同じ）へ垂下された接触片４３と、主片４２の幅太の他端側から後方へ垂下された略Ｊ字形の鎖錠片４４と、鎖錠片４４の側端縁から側方へ突出する固定片４５とを有し、弾性を有する帯状の金属板を加工して接触片４３の先端部と鎖錠片４４の先端部が交差するように折り曲げて一体に形成される。接触片４３にはほぼ平坦な面を有して電線に弾接する接触部４３ａと、電線の挿入方向に沿った接触部４３ａの両側において電線を押圧する一対の押圧部４３ｂ，４３ｃが設けられている。また、接触片４３に対して内側に位置する鎖錠片４４には、電線を接触部４３ａの方へ押圧するとともに電線の一部に食い込んで抜け止めする鎖錠部４４ａが先端に設けられ、鎖錠部４４ａよりも後方の部位に電線（接触片４２）から離れる向きに凸となる曲げ部４４ｂが設けられている。なお、図８（ｃ）に示すように接触片４３の幅寸歩は鎖錠片４４の幅寸法のおよそ半分に設定されている。さらに、固定片４５には刃受３１の連結片３４に列設されている一対の突起３４ａが挿通される挿通孔４５ａが貫設されており、これら一対の挿通孔４５ａに挿通した突起３４ａをかしめることで刃受３１の連結片３４に固定片４５が固定される。そして、一対の刃受ばね３２とそれぞれ隣り合うように連結片３４に固定された一対の端子板４１と刃受３１からなる刃受ブロック３０がボディ１０の各収納室１３に収納される。
【００２９】
ボディ１０の底壁には接触片４３と鎖錠片４４の間に電線を導入することができるように電線挿入孔１１が貫設されている。図１３に示すように、この電線挿入孔１１を通して接触片４３と鎖錠片４４の間に電線１０１を挿入すると、鎖錠片４４の鎖錠部４４ａが電線１０１に食い込むことによって電線１０１が引き抜けなくなるとともに鎖錠片４４のばね力によって電線１０１が接触片４３の接触部４３ａに弾接し、さらに電線１０１は一対の押圧部４３ｂ，４３ｃによって鎖錠片４４の方へ押圧され、鎖錠部４４ａと一対の押圧部４３ｂ，４３ｃの押圧力が均衡して電線１０１が狭持される。但し、主片４２に近い方の押圧部４３ｃは電線１０１と当接する面を面取りして接触面積を増やしてある。
【００３０】
ところで、従来例における端子部は端子板と鎖錠ばねからなる速結端子装置で構成されており、端子板がばね性を有しない金属材料で形成されていた。このため、図６９（ａ）に示すように電線１０１が端子板３０２ａ及び鎖錠ばね３０３に対して真っ直ぐに正規の状態で挿入された場合には端子板３０２ａと電線１０１の接触面積が十分に確保されるが、同図（ｂ）に示すように電線３０１が端子板３０２ａ及び鎖錠ばね３０３に対して傾いて挿入された場合には端子板３０２ａと電線１０１の接触面積が減少してしまう虞があった。これに対して本実施形態の端子部４０では、上述のように接触片４３の２つの押圧部４３ｂ，４３ｃ及び鎖錠片４４の鎖錠部４４ａで電線１０１を両側（互いに反対方向）から押圧しているため、例え電線１０１が傾いて挿入されたとしても接触片４３及び鎖錠片４４のばね力で電線１０１の傾きに追従して２つの押圧部４３ｂ，４３ｃによる押圧力と鎖錠部４４ａによる押圧力とを均衡させることができ、電線１０１の挿入状態に関わらず端子板４１と電線１０１の接続状態を安定させることができる。また、押圧部４３ｂ，４３ｃと鎖錠部４４ａで反対方向から電線１０１に押圧力を与えることにより、押圧力を接触片４３と鎖錠片４４でバランスよく分担することができ、接触片４３や鎖錠片４４のへたり等を抑えることができる。しかも本実施形態では、電線１０１を接続する接続手段たる接触部４３ａ、押圧部４３ｂ、４３ｃ並びに鎖錠部４４ａを弾性を有する金属板によって端子板４１と一体に形成しているから、従来のように端子板と鎖錠ばねの２つの部品を要するものに比較して部品点数並びに組立工数の削減によるコストダウンが図れるという利点もある。
【００３１】
ここで、本実施形態では端子板４１の鎖錠片４４に曲げ部４４ｂを設けているが、例えば、図１４（ａ）に示すように鎖錠片４４の長さを同じとして曲げ部４４ｂを設けずに鎖錠部４４ａの位置を同一にしようとすると鎖錠部４４ａの食い込み角度が小さくなってしまい電線への食い込みが弱くなってしまう。一方、鎖錠部４４ａの同一位置及び同一角度に配置しようとすれば、図１４（ｂ）に示すように鎖錠片４４の長さが短くなってばね性が低下しへたりが発生しやすくなってしまう。したがって、鎖錠片４４に曲げ部４４ｂを設けることでこのような不具合の発生が防止できることになり、鎖錠片４４のばね性を十分に確保すると同時に鎖錠部４４ａの電線に食い込む角度を大きくして電線を確実に抜け止めすることができる。
【００３２】
また、鎖錠片４４の鎖錠部４４ａが形成された先端部位をプレス等によりたたき加工すれば、図１５に示すように鎖錠部４４ａの厚みが若干薄くなるものの表面硬度が高くなって電線挿入に伴う削れを減少させて抜け止め性能の劣化を防ぐことができる。さらに、図１６に示すように鎖錠部４４ａの電線１０１に食い込む側の面をたたき加工すれば、鎖錠部４４ａに生じる段差によって電線１０１に接触する部位が増えて接続信頼性の向上が図れるという利点がある。また、本実施形態では主片４２に近い方の押圧部４３ｃが電線１０１と接触する面を面取りしているが、図１７に示すように電線１０１との接触面を面取りせずに押圧部４３ｃを電線１０１に食い込ませて抜け止めする構造とすれば、電線１０１をさらに確実に抜け止めすることができる。
【００３３】
ところで、図１８に示すようにボディ１０底面における電線挿入孔１１の近傍にストッパリブ１４を突設し、電線１０１が挿入された際に接触片４３の先端をストッパリブ１４に当てて接触片４３の撓み量を規制するようにすれば、接触片４３が過度に撓んで塑性変形するのを防ぐことができる。また、ストッパリブ１４の位置を、接触部４３ａの接触面が電線１０１の挿入方向と略平行となる位置で接触片４３の撓みを規制できる位置に設定すれば、図１８に示すようにストッパリブ１４で規制された状態で接触部４３ａと電線１０１の接触面積を最も大きく、すなわち、面接触させることができて接続信頼性の向上が図れるという利点がある。
【００３４】
また、本実施形態では接触片４３及び鎖錠片４４を端子板４１と一体に形成しているが、相対的に通電性が重視される接触片４３と、相対的にばね性が重視される鎖錠片４４とを別部材で構成してもよい。例えば、図１９に示すように主片４２及び接触片４３が一体に形成された第１の部材４１Ａと、鎖錠片４４が形成された第２の部材４１Ｂとを備え、主片４２に設けた突起４２ａを鎖錠片４４に設けた貫通孔４４ｃに貫通してかしめることにより第１及び第２の部材４１Ａ，４１Ｂを結合して端子板４１を構成すればよい。而して、接触片４３が形成される第１の部材４１Ａには通電性に優れる金属材料を使用し、鎖錠片４４が形成される第２の部材４１Ｂにはばね性に優れる金属材料を使用することができるから、両方の性能を満足する特殊で比較的に高価な材料を使用せずに一般的な材料が使用できてコストダウンが図れるという利点がある。
【００３５】
ところで、端子板４１とともに端子部４０を構成する解除釦６０が各収納室１３に配設される。この解除釦６０は合成樹脂成型品からなり、図１及び図９に示すように略Ｐ字形の操作部６１と、操作部６１の一側面における一端から側方へ突出する駆動部６２と、前記側面における他端から側方へ突出する腕部６３と、腕部６３の先端から駆動部６２の方へ突出する押動突部６４とが一体に形成されている。腕部６３は操作部６１の幅寸法よりも狭い幅寸法に形成されている（図９（ｃ）参照）。また駆動部６２は、腕部６３に比較して操作部６１からの突出量が大きくなっており、腕部６３と対向する内側面（図９（ｂ）における下面）には下方及び一側方に開放する凹所６２ａが形成されている。腕部６３と対向する凹所６２ａの底面には、先端から操作部６１に向かって徐々に腕部６３から遠ざかる向きに傾斜する傾斜面６２ｂが形成されている。なお、駆動部６２の先端部分の外側面（図９（ｂ）における上側面）には断面形状が略台形の突起６５が突設されている。
【００３６】
一方、ボディ１０の長手方向の両側面には、各収納室１３と通じる縦溝１５が各一対ずつ並設されており、この縦溝１５に操作部６１を挿通するようにして解除釦６０がボディ１０内の各収納室１３に配設される。ここで解除釦６０は、腕部６３が端子板４１の鎖錠片４４における接触片４３と対向しない部位に対向し、ボディ１０の電線挿入孔１１と駆動部６２の凹所６２ａとが対向し、且つ操作部６１が縦溝１５から進退自在に突出するように収納室１３内に移動自在に配置されている。なお、既に説明したように接触片４３の幅寸法を鎖錠片４４の幅寸法よりも狭くしているから、腕部６３と鎖錠片４４の対向面積を広くとることができるようになっている。また、操作部６１を縦溝１５から突出する向きに弾性付勢して解除釦６０を電線が接続されていないときの位置（非接続位置）に復帰させる復帰ばね７０が各収納室１３に収納されている。
【００３７】
復帰ばね７０は、図１０に示すように先端が略直角に折り曲げられ、後端部が略へ字形に折り曲げられたばね片７１と、ばね片７１の後端部の両側縁よりばね片７１の先端側へ突出する一対の固定部７２とが一体に形成されてなる。固定部７２は先端部が略Ｕ字形に湾曲し、図２０に示すように端子板４１の鎖錠片４４における主片４２近傍の部位に設けられた切り欠きからなる被固定部４６を挟み込んで復帰ばね７０を端子板４１に固定（仮固定）するものである。そして、端子板４１に復帰ばね７０を仮固定した刃受ブロック３０を収納室１３内に収納すると、ボディ１０内壁に端子板４１が当接してばね片７１の後端部が狭持され、復帰ばね７０が端子板４１に本固定される。さらに解除釦６０を収納室１３内に配設すれば、復帰ばね７０のばね片７１の先端部が解除釦６０の駆動部６２の先端にそれぞれ当接し、ばね片７１のばね力により、非接続位置（ボディ１０の縦溝１５から操作部６１が突出した位置）に復帰する向きに解除釦６０が弾性付勢される。なお、解除釦６０の器体１に対する抜け止めは、カバー２０の内壁面に駆動部６２を当接させることで行われる。
【００３８】
而して、電線挿入孔１１を通して端子板４１の接触片４３と鎖錠片４４の間に電線を挿入して端子部４０（端子板４１）に電線を接続すると、電線の先端が解除釦６０の駆動部６２の凹所６２ａに形成された傾斜面６２ｂに当接し、電線の挿入力（電線の挿入向きにはたらく力）によって、駆動部６２がカバー２０に近付く向き及び操作部６１が器体１内に進入する向きに解除釦６０が押駆動される。その結果、端子部４０に電線が接続された状態では、操作部６１の一部が器体１内部に引き込まれた位置（接続位置）まで移動することになる。つまり、解除釦６０の操作部６１が非接続位置と接続位置の間で移動自在となっており、操作部６１の位置（非接続位置又は接続位置）によって電線が端子板４１と接続されているか否かを確認することができるのである。また電線を接続する際、上述のように電線の挿入力によって解除釦６０がカバー２０に近付く向きに押し上げられるのであるが、解除釦６０の駆動部６２と対向するカバー２０の内底面には段差（図示せず）が形成されており、駆動部６２に設けた突起６５が当該段差を乗り越えるときに音（例えば、「カチッ」というような衝撃音）を発するので、その音によっても電線が端子板４１に接続されたことを確認することができるようになっている。
【００３９】
一方、端子部４０に接続されている電線を引き抜くには、縦溝１５を通して器体１の側面に露出している操作部６１を指で押操作すればよい。操作部６１を押操作して接続位置からさらに器体１内部に解除釦６０を移動させると、解除釦６０の腕部６３先端に突設されている押動突部６４で端子板４１の鎖錠部４４ａの先端を押圧することにより、電線に食い込んでいる鎖錠部４４を電線から離すように鎖錠片４４を撓ませて電線の引き抜きが可能となる。ここで、本実施形態では解除釦６０の腕部６３先端に突設した押動突部６４で鎖錠部４４ａの先端を押圧するようにしているから、鎖錠片４４を鎖錠部４４ａから離れた位置で押圧する場合に比較して、電線の接続状態を解除する際に鎖錠部４４ａ（鎖錠片４４）が変形（塑性変形）するのを防ぐことができる。
【００４０】
従来の速結端子装置では工具を使って解除釦を操作しながら電線を引き抜かなければならないため、一方の手で配線器具の器体を持ち、他方の手に持った工具を操作孔に挿入して解除釦を操作した状態では両手が塞がれてしまうために電線を電線挿入孔から引き抜くことが困難であった。これに対して本実施形態では、器体１を持った手の指（例えば、親指）で器体１の側面に露出する解除釦６０の操作部６１を押操作して電線に食い込んでいる鎖錠部４４ａを電線から離すことができ、一方の手で器体１の保持と解除釦６０の操作を同時に行い、他方の手で電線を引き抜くことができるため、従来の速結端子装置に比較して電線の取り外し作業が容易に行える。そして、電線を引き抜いた後に操作部６１の押操作を止めれば、復帰ばね７０のばね力によって解除釦６０が移動し、操作部６１が非接続位置に自動的に復帰するため、操作部６１を非接続位置に復帰させる手間が要らず何度でも電線を抜き差しすることができる。
【００４１】
ここで、解除釦６０は駆動部６２において器体１の縦溝１５から抜け止めされ、腕部６３の側ではフリーの状態であるから、抜け止め位置にある駆動部６２を支点として解除釦６０が揺動自在となっており、腕部６３の側でも抜け止めを行って平行移動のみ可能とした場合に比較して、非接続位置における解除釦６０の突出量を増やして視認性並びに操作性を高めることができる。また、図９に示すように解除釦６０の駆動部６２における復帰ばね７０のばね片７１先端が当接する面６２ｃを復帰ばね７０の付勢向きにくぼんだ形状としているので、図２１（ａ）に示すように前記当接面６２ｃが平坦な場合に比較して解除釦６０の移動量が同じでも復帰ばね７０の変位量を低減することができ、復帰ばね７０のへたりを軽減することができる（図２１（ｂ）参照）。
【００４２】
なお、本実施形態では復帰ばね７０に設けた固定部７２を端子板４１の被固定部４６に仮固定するようにしているが、図２２に示すように端子板４１に突設した突起４７を復帰ばね７０に設けた係止孔７３に挿入係止して仮固定する場合に比較して、刃受ブロック３０をボディ１０へ組み込む際に少々の衝撃が加わっても復帰ばね７０が端子板４１から脱落し難くなって作業性の向上が図れるという利点がある。
【００４３】
ところで、ボディ１０の長手方向両側面における縦溝１５の後端近傍の部位にボディ１０の長手方向に突出する一対の突部１６が突設されてボディ１０の側面との間に段差が形成されている。すなわち、接続位置において解除釦６０の操作部６１は器体１（ボディ１０）の側面から僅かに突出することになるが、上述のように突部１６を設けてボディ１０の側面との間に段差を形成しているため、電線挿入孔１１が開口する器体１（ボディ１０）の底面側から見たときに、図２３に示すように非接続位置にある解除釦６０の操作部６１が突部１６よりも外側に飛び出して見えるのに対し、接続位置にある解除釦６０の操作部６１は突部１６の陰に隠れて見えなくなり、器体１の底面から見たときの解除釦６０の視認可否によって電線の接続状態が容易に判別できるようになる。
【００４４】
ところで、カバー２０の前壁には一つのプラグに設けた一対の栓刃を挿入することができる差込部２４が１口分形成されている。差込部２４は各刃受３１の刃受ばね３２，３３に対応する部位にそれぞれ開口する挿入口２５よりなり、各挿入口２５は平板状の平型栓刃が差し込まれる平型栓刃挿入口２５ａと、丸ピン状のピン型栓刃が差し込まれるピン型栓刃挿入口２５ｂとを連通させた形状に形成されている。つまり、平型栓刃挿入口２５ａは矩形状であって、長手方向の中間部の一側縁に円状のピン型栓刃挿入口２５ｂが連通した形状になっている。また、平型栓刃挿入口２５ａの中心間の距離よりも、ピン型栓刃挿入口２５ｂの中心間の距離の方が広くなっている。平型栓刃挿入口２５ａに挿入される平型栓刃は刃受ばね３２の側面と刃受ばね３３との間で挟持され、ピン型栓刃挿入口２５ｂに挿入されるピン型栓刃は一対の刃受ばね３２の間で挟持される。
【００４５】
次に、ボディ１０とカバー２０を結合して器体１を組み立てる構造について説明する。すなわち、本実施形態においては、ボディ１０とカバー２０との双方に設けた嵌合部６，７に組立部材５０を凹凸嵌合することでボディ１０とカバー２０とを結合して器体１を組み立てるようになっている。
【００４６】
ボディ１０の長手方向に対向する両側面には、図４に示すように一対の縦溝１５に挟まれた中央部に矩形の嵌合部６が突設され、さらに嵌合部６の前方（図４（ｄ）における上方）には凹溝８が形成されている。一方、カバー２０の長手方向の両側面には、図５に示すようボディ１０の縦溝１５と連通する一対の挿通溝２１が設けられるとともに挿通溝２１に挟まれた中央部からボディ１０の嵌合部６と同形状且つ同寸法の嵌合部７が突設されている。そして、ボディ１０の開口面にカバー２０を突き合わせた状態では、それぞれの嵌合部６，７が凹溝８を挟んで一列に配置されることになる。
【００４７】
組立部材５０は弾性を有する合成樹脂成型品からなり、図６に示すように嵌合部６，７と各々嵌合する嵌合孔５１，５１が器体１の前後方向（図１における上下方向）に並設された短冊状の縦片５２と、縦片５２の先端に中央部が連結された短冊状の横片５３とを有する略Ｔ字形に形成され、器体１と対向する縦片５２の背面側において嵌合孔５１に挟まれた略中央部からは先端に係止爪５４ａを有する係止突片５４が背方へ突設されている。また、横片５３の側面には、埋込型の配線器具を造営面に埋込配設するための取付枠、又は配線器具の取付構造を有したフラッシプレート（以下、単に「プレート」という）が具備する係合孔と係合して器体１を取付枠に取り付ける一対の取付部（取付爪）５５が突設されている。
【００４８】
一方、カバー２０には、ボディ１０の凹溝８から挿入される組立部材５０の係止突片５４先端部に設けた係止爪５４ａが係止する被係止部２６が長手方向両端部近傍の背面側に形成されている（図５（ｄ）参照）。なお、カバー２０の背面側における嵌合部７近傍には後方に向かうにつれて内側に傾斜して係止爪５４ａを被係止部２６に案内するガイド面２７が形成されている。
【００４９】
而して、ボディ１０とカバー２０とを結合して器体１を組み立てるには、図２４（ａ）に示すようにボディ１０とカバー２０を開口面側で突き合わせた状態で係止突片５４を凹溝８に挿入するように組立部材５０を器体１の長手方向に対向する両側面の方へ押しつければ、図２４（ｂ）に示すように組立部材５０の各嵌合孔５１にボディ１０及びカバー２０の嵌合部６，７がそれぞれ嵌合してボディ１０とカバー２０とが結合されると同時に、係止突片５４の先端に設けた係止爪５４ａがカバー２０のガイド面２７に沿うように係止突片５４が後方（ボディ１０側）に撓み、やがて係止爪５４ａがカバー２０の被係止部２６に係止することによって、組立部材５０の嵌合部６，７からの脱落が防止できる。なお、係止突片５４をスムーズに後方に撓ませるために、図２４に示すようにボディ１０のガイド面２７と対向する位置にガイド面２７と略平行に傾斜する傾斜面１０ａを設けることが望ましい。
【００５０】
このように合成樹脂製の組立部材５０を用いてボディ１０とカバー２０とを結合しているから、金属製の組立枠を用いる場合のように組立枠と充電部（刃受ブロック３０）との絶縁距離による設計上の制約が減少し、器体１を形成する材料の選択や器体１の厚み寸法等の設計の自由度が高くなるという利点がある。また、本実施形態ではボディ１０の嵌合部６とカバー２０の嵌合部７をそれぞれ組立部材５０の一対の嵌合孔５１に個別に嵌合しているから、ボディ１０及びカバー２０の嵌合部を同じ嵌合孔に嵌合させる場合に比較してそれぞれの嵌合部６，７の寸法誤差による組立部材５０のがたつきを抑えてボディ１０とカバー２０を強固に結合することができる。また、係止突片５４を組立部材５０の縦片５２における嵌合孔５１に挟まれた部位に設けることで組立部材５０を小型化している。なお、図２５に示すように被係止部２６やガイド面２７をボディ１０に設け、組立部材５０の係止突片５４に設ける係止爪５４ａの向きを逆としても構わない。
【００５１】
ところで、カバー２０の内部には一対の扉１６０，１６０と一対の板ばね１７０，１７０、そして中枠１８０が納められる。中枠１８０は、図１１に示すように一対の貫通孔１８１，１８１と、この貫通孔１８１，１８１の間に位置する溝１８２とを備えたもので、カバー２０内壁に設けられた突起（図示せず）との係合でカバー２０に仮止めすることができるものとなっている。そして、一対の扉１６０，１６０と一対の板ばね１７０，１７０とは中枠１８０とカバー２０の内面との間に配設される。
【００５２】
同形のものとして形成されている一対の扉１６０は、図１２に示すように両側に張り出す翼片１６１，１６１を備え、各翼片１６１，１６１にはそれぞれ傾斜角度が異なる一対の傾斜面１６２，１６３が並設されている。この扉１６０，１６０は、翼片１６１，１６１に挟まれた中央部１６４が中枠１８０の溝１８２に納められるとともに、その外面側とカバー２０の内壁との間に板ばね１７０，１７０が配された状態でカバー２０内に納められ、板ばね１７０，１７０による付勢で両扉１６０，１６０は相互に接する状態となる。
【００５３】
中枠１８０及び扉１６０，１６０を納めたカバー２０を組立部材５０を用いてボディ１０と結合するのであるが、ボディ１０とカバー２０とを組立部材５０で結合して器体１を組み立てた時、中枠１８０の貫通孔１８１内に刃受ブロック３０の刃受３１が位置するとともに、中枠１８０の仕切壁１８０ａがボディ１０の仕切壁１２と係合して、両刃受３１間を分離している。そして、扉１６０，１６０はカバー２０の挿入口２５と刃受３１との間に位置する。
【００５４】
すなわち、一方の扉１６０の翼片１６１は他方の扉１６０の翼片１６１に少し被さることで隙間が両扉１６０，１６０間に生ずることがない状態で両扉１６０，１６０が板ばね１７０，１７０による付勢で接触しているのであるが、このように閉じた扉１６０，１６０が挿入口２５と刃受３１との間に位置して、挿入口２５の奥に位置する刃受３１を隠すことになる。
【００５５】
この状態で、プラグの栓刃を両挿入口２５に差し込めば、各栓刃は扉１６０，１６０の翼片１６１，１６１の傾斜面１６２（又は１６３）を押すことで、扉１６０を板ばね１７０に抗して動かして、両扉１６０，１６０の間を広げるものであり、このために栓刃が刃受３１に差し込まれる。プラグを抜けば、両扉１６０，１６０は板ばね１７０，１７０による付勢で復帰して再度挿入口２５を閉じる状態となる。
【００５６】
上述のように構成される本実施形態のコンセントを壁面などの造営面に施工するには、図２６及び図２７に示すプレート１００を用いる。プレート１００は、器体１を保持するプレート枠１１０と、プレート枠１１０を覆って見栄えよく施工する化粧プレート１２０とからなる。合成樹脂製のプレート枠１１０は絶縁性を有し、一対の枠片１１３ａ，１１３ｂの左端部同士および右端部同士をそれぞれ横片１１２で連続一体に結合することによって、器体１の前面を露出させる長方形状の開口窓１１１を中央部に備えた縦長の矩形枠状に形成されている。開口窓１１１の長手方向に沿った両側縁の後面側にはそれぞれ帯板状の固定梁部１１４と可動梁部１１５とが互いに対向する形で設けてある。
【００５７】
可動梁部１１５は、長手方向の両端部で可動梁部１１５の長手方向に延長された連結部１１６を介して枠片１１３ｂに連続一体に連結され、中間部の２箇所が可動梁部１１５に直交する方向のブリッジ部１１７を介して枠片１１３ｂに連続一体に連結されている。また、各連結部１１６と各ブリッジ部１１７との間および両ブリッジ部１１７の間の部位は表裏に貫通するスリット１１８ａ〜１１８ｃとなっている。プレート枠１１０を形成する合成樹脂は可撓性を有し、可動梁部１１５および連結部１１６が可撓になっている。両側のスリット１１８ａ，１１８ｃはＬ字形に形成され、中間部のスリット１１８ｂは一直線上に形成されている。枠片１１３ｂにおいて各ブリッジ部１１７の近傍には、ブリッジ部１１７に対応する部位でも可動梁部１１５が可撓となるように、表裏に貫通する長孔状の溝１１９をそれぞれ設けてある。
【００５８】
一方、固定梁部１１４および可動梁部１１５において開口窓１１１に臨む一面には、組立部材５０に各一対ずつ突設された取付爪５５と凹凸係合する保持部としての６個の保持溝１１４ａ，１１５ａ（図２６参照）が等ピッチで設けられる。したがって、取付部材５０に設けた取付爪５５を各保持溝１１４ａ，１１５ａに凹凸係合させると、器体１の前面を開口窓１１１から露出させた形でプレート枠１１０に器体１を取着することができる。また、器体１がプレート枠１１０から前方に抜け落ちないように、固定梁部１１４及び可動梁部１１５の基部には組立部材５０の横片５３前面に当接する当接部１１４ｄ，１１５ｄが形成されている。つまり、組立部材５０の横片５３前面が当接部１１４ｄ，１１５ｄ（図２８参照）に当接し、取付爪５５の後面が保持溝１１４ａ，１１５ａに係止されることによって、器体１がプレート枠１１０に取着される。
【００５９】
ここで、固定梁部１１４と可動梁部１１５との開口窓１１１に臨む一面における各先端部分には、器体１の取付爪５５をプレート枠１１０の後面側から保持溝１１４ａ，１１５ａに導入する際に、各取付爪５５を保持溝１１４ａ，１１５ａに誘導するために、先端側ほど互いの距離を広げるように傾斜した傾斜面となった誘導部１１４ｂ，１１５ｂが設けてある。すなわち、図２８（ａ）〜（ｃ）に示すようにプレート枠１１０に器体１を取り付けるには、器体１の一側面に嵌合した組立部材５０の取付爪５５を固定梁部１１４の保持溝１１４ａに係合させておき、器体１の前端部を開口窓１１１にほぼ一致させて器体１をプレート枠１１０に対して前方に押し込むと、器体１の他側面に嵌合した組立部材５０の取付爪５５が可動梁部１１５を撓ませながら傾斜面５４ａと誘導部１１５ｂとによって保持溝１１５ａに追い込まれ、取付爪５５を保持溝１１５ａに容易に係合させることができる。
【００６０】
一方、固定梁部１１４の基部には隣接する各一対の保持溝１１４ａの間でプレート枠１１０の表裏に貫通する器具外し孔１１４ｃが穿設してあって、器体１をプレート枠１１０に取着した状態で、ドライバや取外し専用の治具等の先端部分を器具外し孔１１４ｃに挿入し、治具の先端部分で器体１を可動梁部１１５側へ押すと梃子の原理によってわずかな力で可動梁部１１５を撓ませることができ、固定梁部１１４側の保持溝１１４ａと器体１の取付爪５５との係合状態を解除してプレート枠１１０から器体１を取り外すことができるようになっている。
【００６１】
ところで、上述したように、プレート枠１１０は固定梁部１１４と可動梁部１１５とにそれぞれ３対の保持溝１１４ａ，１１５ａを有し、器体１の上下両側面に嵌合した組立部材５０に一対ずつの取付爪５５が形成されているから、上述の器体１をプレート枠１１０に３個まで取り付けることが可能である。つまり、プレート枠１１０は３個用であって、３個用のプレート枠１１０に最大３個まで取り付けることができるように取付寸法を設定した器体１を単位寸法（以下、「１個モジュール」と呼ぶ）の器体１と呼ぶことにする。このように、器体１とプレート枠１１０との相対的な取付寸法を規定しておくことによって、プレート枠１１０には１〜３個の範囲の任意個数の器体１を取り付けることが可能になる。固定梁部１１４および可動梁部１１５に設けた各保持溝１１４ａ，１１５ａのピッチは１個モジュールの器体１の側面に突設されている取付爪５５のピッチと等しく、かつ上述のように各保持溝１１４ａ，１１５ａは等間隔であるから、１個モジュールの器体１であれば固定梁部１１４および可動梁部１１５の隣接する任意の２個の保持溝１１４ａ，１１５ａを用いてプレート枠１１０に取着することができる。
【００６２】
ところで、プレート枠１１０の各横片１１２の中間部前面にはそれぞれ凹所１３１が形成してある。各凹所１３１には、プレート枠１１０を埋込ボックスに取り付けるためのボックスねじを挿通する長孔状のボックス用孔１３２と、プレート枠１１０を壁面等の施工面に直付けするためのねじが挿通されるねじ挿通孔１３３と、施工面を形成する壁パネル等に取り付ける際に使用するはさみ金具（図示せず）を係止するはさみ金具係止孔１３４とが設けてある。
【００６３】
また、プレート枠１１０の４隅には、化粧プレート１２０の後面から突設した係止突起１２３を係止する化粧プレート係止孔１３５が設けてあり、化粧プレート係止孔１３５に係止突起１２３を挿入係止することでプレート枠１１０の前面を覆う形で化粧プレート１２０を着脱自在に取り付けることができるようになっている。
【００６４】
化粧プレート１２０は、絶縁性を有する合成樹脂を用いて形成されたものであって、プレート枠１１０の前面を覆う矩形状の主部１２１と、主部１２１の周縁から全周に亙って後方に突出する側壁１２２とを連続一体に形成した略箱形に形成される。係止突起１２３は主部１２１の後面側の４隅に突設してある。また、主部１２１の中央部には、プレート枠１１０に取り付けた器体１の前面を露出させる開口窓１２１ａが設けてある。
【００６５】
化粧プレート１２０の側壁１２２のうちの各対向面間の距離は、それぞれプレート枠１１０の対応する部位の幅寸法よりも大きくしてある。すなわち、施工面に配設したプレート枠１１０の前面側に化粧プレート１２０を取着したとき、プレート枠１１０が化粧プレート１２０の内側に収まり、化粧プレート１２０の側壁１２２の先端縁が施工面にほぼ当接する。その結果、プレート枠１１０と化粧プレート１２０との突き合わせ面が施工面よりも前方へ出ることがなく、両者の突き合わせの線が側面からはほとんど見えなくなり外観が向上する。また、化粧プレート１２０の側壁１２２の内側面には、プレート枠１１０の側面に当接してプレート枠１１０に対する化粧プレート１２０の位置ずれを防止する規制リブ１２４を複数列設している。
【００６６】
ところで、プレート枠１１０の両枠片１１３ａ，１１３ｂの外側面には、後方ほど外側に突出するように傾斜する傾斜面１１３ｃと、傾斜面１１３ｃに連続して外側に張り出した張出部１１３ｄとが形成されている。さらに、化粧プレート１２０の上下の側壁１２２の内側面には後端面が張出部１１３ｄの前面に当接するリブ１２５が突設され、このリブ１２５によって化粧プレート１２０のがたつきが防止される。プレート枠１１０に化粧プレート１２０を取り付けるときには、化粧プレート１２０の規制リブ１２４がプレート枠１１０の枠片１１３ａ，１１３ｂに形成した傾斜面１１３ｃに案内されるから、取り付けが容易である。
【００６７】
化粧プレート１２０の上下の一方の側壁１２２には一対の切欠部１２６が設けてあり、この切欠部１２６に治具（マイナスドライバの先端部など）を差し込んで化粧プレート１２０をプレート枠１１０から離す向き（前向き）の力を作用させると、化粧プレート１２０の係止突起１２３とプレート枠１１０の化粧プレート係止孔１３５との係合状態が解除され、化粧プレート１２０をプレート枠１１０から取り外すことができる。プレート枠１１０の枠片１１３ｂにおいて切欠部１２６に対応する位置には傾斜面１１３ｃよりも内側へ窪んだ逃がし部１３６が設けてあり、切欠部１２６に差し込まれた治具を逃がして奥まで挿入できるようにしてあり、化粧プレート１２０を取り外す際に力を作用させやすくしてある。さらに、逃がし部１３６の後面側端部からは張出部１１３ｄよりも薄肉のリブ１３７が、化粧プレート１２０の切欠部１２６から突出しない程度まで延設してある。すなわち、切欠部１２６に差し込んだ治具に施工面に当接する部分を支点として力を加えることで施工面に傷が付くおそれがあるが、リブ１３７を設けていることで切欠部１２６に差し込んだ治具がリブ１３７に当接し、化粧プレート１２０をプレート枠１１０から取り外す際に治具によって施工面に傷が付くのを防ぐことができる。
【００６８】
化粧プレート１２０の後面側には、プレート枠１１０に取着したときにプレート枠１１０に設けた３つのスリット１１８ａ〜１１８ｃにそれぞれ嵌入される突条片１２８ａ〜１２８ｃが列設してある。ここで、各突条片１２８ａ〜１２８ｃの寸法は、プレート枠１１０の各スリット１１８ａ〜１１８ｃに嵌入された状態で、スリット１１８ａ〜１１８ｃの内周面と各突条片１２８ａ〜１２８ｃとの間にわずかな隙間しか生じないような寸法に設定してある。すなわち、器体１を取り付けたプレート枠１１０に化粧プレート１２０を取着した状態では、３つの突条片１２８ａ〜１２８ｃがプレート枠１１０の各スリット１１８ａ〜１１８ｃに嵌入され、スリット１１８ａ〜１１８ｃの内周面と各突条片１２８ａ〜１２８ｃとの間にはわずかな隙間しか生じないことから、プレート枠１１０の可動梁部１１５の動き（撓み）が規制されることになる。その結果、コンセントに差し込まれたプラグを異常に大きな力で引き抜く等の衝撃が加えられた場合でも、上述のように可動梁部１１５の動きが規制されているために器体１の取付爪２と可動梁部１１５および固定梁部１１４の保持溝１１５ａ，１１４ａとの係止が外れにくいのである。
【００６９】
（実施形態２）
実施形態１は、平行平型栓刃を有する所謂Ａタイプのプラグと平行ピン型栓刃を有する所謂ＢＳタイプのプラグの双方が接続可能なタイプ（所謂ユニバーサルタイプ）の差込部２４を１個モジュールの器体１に備えるものであったが、本実施形態は、図２９〜図３１に示すように実施形態１と同じユニバーサルタイプの差込部２４と、所謂Ｏ（オウ）タイプの接地極付きプラグが接続される差込部２４’とを３個モジュール（つまり、１個モジュールの３倍の取付寸法）の器体１に備えている。Ｏタイプの差込部２４’は接地極を含む３つの平型栓刃が挿入される３個の平型栓刃挿入口２５ａ’，２５ａ’，２５ｂ’を有し、接地極の平型栓刃が挿入される平型栓刃挿入口２５ｂ’の両側に残り（電圧極）の平型栓刃挿入口２５ａ’，２５ａ’が逆ハ字形に配置されている。
【００７０】
図３２に示すように、ボディ１０の内部は長手方向に沿って設けられた複数の仕切壁１２により内部空間が３分されており、後述するようにカバー２０内に収納される中枠２６０でボディ１０の前面が覆われることによって器体１の内部空間が独立した３室（収納室１３ａ，１３ｂ，１３ｃ）に分割される。また、両端の収納室１３ａ，１３ｂはスリット１２ａを有した一対の仕切壁１２ｂによりさらにボディ１０の長手方向に沿って３室に分割されている。
【００７１】
ボディ１０内において両端の収納室１３ａ，１３ｂには電圧極用の栓刃ブロック３０Ａ，３０Ｂがそれぞれ収納される。栓刃ブロック３０Ａ，３０Ｂは、ユニバーサルタイプの差込部２４に対応する刃受３１Ａと、Ｏタイプの差込部２４’の電圧極に対応する刃受３１Ｂとが端子板４１の両側に結合されて構成される。但し、一方の収納室１３ａに収納される栓刃ブロック３０Ａと、他方の収納室１３ｂに収納される栓刃ブロック３０Ｂとは鏡像の関係にあるので栓刃ブロック３０Ａについてのみ説明する。
【００７２】
ユニバーサルタイプの刃受３１Ａは実施形態１における刃受３１とほぼ共通の構造を有しており、図３５に示すように互いに対向する先端部にて栓刃を挟持する一対の刃受ばね３２と、両刃受ばね３２の一方の側面同士を連続一体に結合するコ字状の連結片３４と、連結片３４より突出し両刃受ばね３２の前記側面に対向する刃受ばね３３とを備える。また、一方の刃受ばね３２の基端側の側縁からは略鈎形の脚片３５が延設され、脚片３５の先端には一対のかしめ用突起３６ａが列設された結合片３６が設けてある。
【００７３】
Ｏタイプの電圧極用の刃受３１Ｂは、図３６に示すように互いに対向する先端部にて栓刃を挟持する一対の刃受ばね３２と、両刃受ばね３２の一方の側面同士を連続一体に結合するコ字状の連結片３４と、一方の刃受ばね３２の基端側の側縁から延設される帯状の脚片３５と、一対のかしめ用突起３６ａが列設されて脚片３５の先端に設けられる結合片３６とを備える。
【００７４】
端子板４１は、図３７に示すように略Ｔ字形の主片４２と、主片４２の幅細の一端側における両側縁から後方へ垂下された一対の接触片４３と、主片４２の幅太の他端側における両側縁から後方へ垂下された略Ｊ字形の一対の鎖錠片４４と、両鎖錠片４４の側端縁からそれぞれ側方へ突出する固定片（結合部）４５とを有し、弾性を有する帯状の金属板を加工して接触片４３の先端部と鎖錠片４４の先端部がそれぞれ交差するように折り曲げて一体に形成される。すなわち、本実施形態における端子板４１は、実施形態１における２つの端子板４１（各端子板４１は鏡像の関係にある）を互いの主片４２で連結した形状となっており、接触片４３には接触部４３ａと一対の押圧部４３ｂ，４３ｃが設けられ、鎖錠片４４には鎖錠部４４ａと曲げ部４４ｂが設けられている。なお、本実施形態における端子板４１も実施形態１のものと同様に接触片４３の幅寸法を鎖錠片４４の幅寸法よりも狭く（およそ半分）に設定することで解除釦６０による解除操作のスペースを確保している。さらに、固定片４５には刃受３１Ａ，３１Ｂの結合片３６に列設されている一対のかしめ用突起３６ａが挿通される挿通孔４５ａが貫設されており、これら一対の挿通孔４５ａに挿通したかしめ用突起３６ａをかしめることで一方の固定片４５に刃受３１Ａの結合片３６が固定されるとともに他方の固定片４５に刃受３１Ｂの結合片３６が固定されて刃受ブロック３０Ａが構成される。このように本実施形態では、端子板４１を介して電線と導通する部品であり且つ配線器具の種類に応じた固有の部品（本実施形態では刃受３１Ａ，３１Ｂ）を結合するための結合部（固定片４５）を端子板４１に設けているので、上記固有部品がコンセント以外の配線器具の部品であっても端子板４１を共通に使用することができてコストダウンが図れる。なお、固定片４５と結合片３６との結合方法は上述のかしめに限定されるものではなく、接着や溶接等の種々の結合方法に対応可能である。
【００７５】
而して、上述のように構成される電圧極用の刃受ブロック３０Ａ，３０Ｂは、図３４に示すように各刃受３１Ａ，３１Ｂを長手方向両端の区画にそれぞれ収納し、端子板４１を長手方向中央の区画に収納するようにしてボディ１０両端の収納室１３ａ，１３ｂに納められる。
【００７６】
一方、ボディ１０内において中央の収納室１３ｃにはＯタイプの接地極用の栓刃ブロック３０Ｃが収納される。接地極用の栓刃ブロック３０Ｃは、Ｏタイプの差込部２４’に対応する接地極の刃受３１Ｃが端子板４１’に結合されて構成される。
【００７７】
Ｏタイプの接地極用の刃受３１Ｃは、図３８に示すように互いに対向する先端部にて栓刃を挟持する一対の刃受ばね３２と、両刃受ばね３２の後端縁を連続一体に結合する連結片３４と、連結片３４の側縁から延設され略鈎形に折曲された帯状の脚片３５と、かしめ用突起３６ａ並びに位置決め用孔３６ｂが列設されて脚片３５の先端に設けられる結合片３６とを備える。
【００７８】
端子板４１’は電圧極用の端子板４１から固定片４５を除いた形状にほぼ等しく、図３９に示すように主片４２と、一対の接触片４３並びに鎖錠片４４とを備え、接触片４３には接触部４３ａと一対の押圧部４３ｂ，４３ｃが設けられるとともに、鎖錠片４４には鎖錠部４４ａと曲げ部４４ｂが設けられている。また、主片４２には刃受３１Ｃの結合片３６に設けられたかしめ用突起３６ａが挿通されるかしめ用孔４２ａが貫設されるとともに、位置決め用孔３６ｂに嵌合する位置決め突起４２ｂが突設されている。
【００７９】
したがって、刃受３１Ｃの結合片３６に貫設されている位置決め用孔３６ｂに端子板４１’の主片４２に突設されている位置決め突起４２ｂを嵌合して端子板４１’と刃受３１Ｃを位置決めするとともに、結合片３６に突設されているかしめ用突起３６ａを主片４２に貫設されているかしめ用孔４２ａに挿通してかしめることで端子板４１’の主片４２と刃受３１Ｃの結合片３６が結合されて刃受ブロック３０Ｃが構成される。
【００８０】
而して、上述のように構成される接地極用の刃受ブロック３０Ｃは、図３４で示すように刃受３１Ｃを図中下側にしてボディ１０中央の収納室１３ｃに納められる。ここで、図４０（ｂ）に示すように端子板４１の主片４２にかしめ用及び位置決め用の２つの孔４２ｂを列設する構造では、孔４２ｂを設けるための加工用の凹部同士の間隔が非常に狭くなって主片４２の強度が低下してしまう虞があり、強度を確保するためには主片４２の寸法を大きくしなければならない。これに対して本実施形態では、かしめ用突起３６ａと位置決め用孔３６ｂを刃受３１Ｃの結合片３６に設け、かしめ用孔４２ａ及び位置決め用突起４２ｂを端子板４１の主片４２に設けているので、かしめ用孔４２ａと位置決め用突起４２ｂの間隔が広くとれて主片４２を大型化することなく強度低下を防ぐことができる（図４０（ａ）参照）。
【００８１】
なお、本実施形態では別体に形成された端子板４１と刃受３１Ａ，３１Ｂを結合して刃受ブロック３０Ａ，３０Ｂを構成しているが、図４１に示すように刃受３１Ａ，３１Ｂと端子板４１を金属部材を加工して一体に形成すれば、かしめ等の結合作業が不要となる利点がある。ここで、刃受３１Ａ，３１Ｂの構造として、例えば、図４１に示すように一対の刃受ばね３２をその後端縁、すなわち栓刃の差込方向において栓刃の先端に連結片３４が対向するように連結する構造や、図４２（ｂ）及び（ｃ）に示すように一対の刃受ばね３２をその側端縁、すなわち連結片３４が栓刃の差込方向に沿うように連結する構造が考えられるが、前者の構造では後者の構造に比較して刃受ばね３２のばね性において優れ、後者の構造では前者の構造に比較して金属部材から打ち抜き加工する際の所謂板取りにおいて優れており、必要な性能に鑑みて何れかの構造を適宜選択して組み合わせればよい。また、図４２（ａ）に示すように前者の構造においてユニバーサルタイプの刃受３１Ａの刃受ばね３３を片方の刃受ばね３２の側端縁に連結する構造としてもよい。
【００８２】
図３２に示すように、ボディ１０の底壁の長手方向略中央にはそれぞれ３つの収納室１３ａ，１３ｂ，１３ｃに連通する各一対の電線挿入孔１１が貫設されており、電線挿入孔１１を通して接触片４３と鎖錠片４４の間に電線を挿入すれば、実施形態１で説明したように鎖錠片４４の鎖錠部４４ａが電線に食い込んで抜け止めされるとともに鎖錠片４４のばね力によって電線が接触片４３の接触部４３ａに弾接し、さらに一対の押圧部４３ｂ，４３ｃによって鎖錠片４４の方へ電線が押圧され、鎖錠部４４ａと一対の押圧部４３ｂ，４３ｃの押圧力が均衡して電線が狭持される。
【００８３】
ここで、端子板４１，４１’においては各一対の接触片４３及び鎖錠片４４が主片４２の両端に離間して設けられており、これに対応して各一対の電線挿入孔１１も所定の距離だけ離して設けられている。したがって、送り配線のために各端子板４１，４１’に２本の電線を接続する際、隣り合う２つの電線挿入孔１１が離れているから電線を１本ずつ確実に接続することができるものである。これに対して、図４３に示すように２つの接触片４３を端子板４１，４１’の中央部に近接して配置し、図４４に示すように２つの接触片４３に対応する２つの電線挿入孔１１を部分的に連通させてボディ１０に設けるようにすれば、端子板４１，４１’に２本の電線を一緒に各電線挿通孔１１に挿入して同時に接続することができるという利点がある。
【００８４】
ところで、本実施形態においては、端子板４１とともに電圧極用の端子部４０を構成する解除釦８０と、端子板４１’とともに接地極用の端子部４０を構成する解除釦２００とは異なる形状に形成されている。但し、後述するように隣り合って配置される解除釦８０又は２００同士は鏡像の関係にあり、以下では一方の形状についてだけ説明する。
【００８５】
電圧極用の解除釦８０は合成樹脂成型品からなり、図４５に示すように角柱状の操作部８１と、操作部８１の一端側から操作部８１の長手方向に延長され且つ操作部８１の短手方向に突出する駆動部８２と、操作部８１の他端部近傍から駆動部８２と同一方向に突出する腕部８３とが一体に形成されている。腕部８３は操作部８１の幅寸法よりも小さい幅寸法に形成されており、その先端には駆動部８２の方へ突出する押動突部８４が一体に形成されている。また、駆動部８２は腕部８３に比較して操作部８１からの突出量が大きくなっており、腕部８３と対向する内側面には下方及び一側面に開放する凹所８２ａが形成されている。腕部８３と対向する凹所８２ａの底面には、先端から操作部８１に向かって徐々に腕部８３から遠ざかる向きに傾斜する傾斜面８２ｂが形成されている。なお、駆動部８２の先端部分の外側面には腕部８３と反対側に突出する位置決め部８５が突設されている。
【００８６】
一方、ボディ１０の短手方向の両側面には、各収納室１３ａ，１３ｂと通じる縦溝１５が各一対ずつ並設されており、この縦溝１５に操作部８１を挿通するようにして解除釦８０がボディ１０内の各収納室１３ａ，１３ｂにおいて端子板４１に対向して配設される（図３４参照）。ここで解除釦８０は、腕部８３が端子板４１の鎖錠片４４における接触片４３と対向しない部位に対向し、ボディ１０の電線挿入孔１１と駆動部８２の凹所８２ａとが対向し、且つ操作部８１が縦溝１５から進退自在に突出するように収納室１３ａ，１３ｂ内に移動自在に配置されている。なお、既に説明したように接触片４３の幅寸法を鎖錠片４４の幅寸法よりも狭くしているから、腕部８３と鎖錠片４４の対向面積を広くとることができるようになっている。また、操作部８１を縦溝１５から突出する向きに弾性付勢して解除釦８０を電線が接続されていないときの位置（非接続位置）に復帰させる復帰ばね９０が各収納室１３ａ，１３ｂに収納されている。
【００８７】
復帰ばね９０は、図４６に示すように先端が略直角に折り曲げられ、後端部が略へ字形に折り曲げられた一対のばね片９１と、ばね片９１の後端部の片側側縁より先端側へ突出する固定部９２と、ばね片９１を後端部の側縁で連結する連結片９２とが一体に形成されてなる。固定部９２は先端部が略Ｕ字形に湾曲し、図４７に示すように端子板４１の鎖錠片４４における主片４２近傍の部位に設けられた切り欠きからなる被固定部４６を挟み込んで復帰ばね９０を端子板４１に固定（仮固定）するものである。そして、端子板４１に復帰ばね９０を仮固定した刃受ブロック３０Ａ，３０Ｂを収納室１３ａ，１３ｂ内に収納すると、ボディ１０内壁に端子板４１が当接してばね片９１の後端部が狭持され、復帰ばね９０が端子板４１に本固定される（図３４参照）。さらに解除釦８０を収納室１３ａ，１３ｂ内に配設すれば、復帰ばね９０のばね片９１の先端部が解除釦８０の駆動部８２の先端にそれぞれ当接し、ばね片９１のばね力により、非接続位置（ボディ１０の縦溝１５から操作部８１が突出した位置）に復帰する向きに解除釦８０が弾性付勢される。なお、解除釦８０の器体１に対する抜け止めは、カバー２０の内壁面に駆動部８２に設けた位置決め部８５を当接させることで行われる。ここで、端子板４１には矩形の貫通孔からなり、被固定部４６と対になる被固定部４６’が設けてあり、図４８に示すようにばね片９１を１つだけ備える復帰ばね９０’を用いる場合に、復帰ばね９０’の固定部９２で対となる被固定部４６，４６’を挟み込んで仮固定するようにしているから、２つのばね片９１，９１を一体とした復帰ばね９０とばね片９１を一つだけ具備する復帰ばね９０’の両方が同じ端子板４１に取り付けることが可能となり、部品の共通化によるコストダウンが図れるとともに配線器具の構成の幅を広げることができる。
【００８８】
而して、電線挿入孔１１を通して端子板４１の接触片４３と鎖錠片４４の間に電線を挿入して端子部４０（端子板４１）に電線を接続すると、電線の先端が解除釦８０の駆動部８２の凹所８２ａに形成された傾斜面８２ｂに当接し、電線の挿入力（電線の挿入向きにはたらく力）によって、駆動部８２がカバー２０に近付く向き及び操作部８１が器体１内に進入する向きに解除釦８０が押駆動される。その結果、端子部４０に電線が接続された状態では、操作部８１の一部が器体１内部に引き込まれた位置（接続位置）まで移動することになる。つまり、解除釦８０の操作部８１が非接続位置と接続位置の間で移動自在となっており、操作部８１の位置（非接続位置又は接続位置）によって電線が端子板４１と接続されているか否かを確認することができるのである。
【００８９】
なお、ボディ１０の短手方向両側面における縦溝１５の後端近傍の部位にはボディ１０の短手方向に突出する突部１６が突設されてボディ１０の側面との間に段差が形成されている。すなわち、接続位置において解除釦８０の操作部８１は器体１（ボディ１０）の側面から僅かに突出することになるが、突部１６を設けてボディ１０の側面との間に段差を形成しているため、電線挿入孔１１が開口する器体１（ボディ１０）の底面側から見たときに非接続位置にある解除釦８０の操作部８１が突部１６よりも外側に飛び出して見えるのに対し、接続位置にある解除釦８０の操作部８１は突部１６の陰に隠れて見えなくなり、器体１の底面から見たときの解除釦８０の視認可否によって電線の接続状態が容易に判別できるようになる。また、解除釦８０の操作部８１をボディ１０と異なる色に着色すれば、解除釦８０の位置が視認し易くなるという利点がある。
【００９０】
一方、端子部４０に接続されている電線を引き抜くには、縦溝１５を通して器体１の側面に露出している操作部８１を指で押操作し、接続位置からさらに器体１内部に解除釦８０を移動させると、解除釦８０の腕部８３先端に突設されている押動突部８４で端子板４１の鎖錠部４４ａの先端を押圧することにより、電線に食い込んでいる鎖錠部４４を電線から離すように鎖錠片４４を撓ませて電線の引き抜きが可能となる。また、電線を引き抜いた後に操作部８１の押操作を止めれば、復帰ばね９０のばね力によって解除釦８０が移動し、操作部８１が非接続位置に自動的に復帰する。なお、本実施形態においては、押動突部８４が設けられた解除釦８０の一端側に操作部８１が設けてあるので、解除釦８０の操作位置（操作部８１）と腕部８３との距離が近くなって鎖錠部４４ａを押圧するのに必要な操作量を低減して解除釦８０の操作性が向上するものである。
【００９１】
ところで本実施形態においては、解除釦８０をボディ１０の収納室１３ａ，１３ｂに組み込む際、図４９に示すように押動突部８４を端子板４１における２つの接触片４３の基端間に設けられた係合部４８に係合させて端子板４１に仮止めしている。このとき、係合部４８に対向する鎖錠片４４の鎖錠部４４ａが押動突部８４に当接し、蛍光部４８と鎖錠部４４ａで押動突部８４を狭持して解除釦８０を確実に仮止めするようにしている。つまり、解除釦８０は端子板４１に取り付けられた復帰ばね９０によって付勢されるため、このように仮止めしないと姿勢が安定せずに組み込み作業性が低下することになるからであり、仮止めすることで解除釦８０の組み込み作業性が向上できるものである。なお、押動突部８４の先端部における操作部８１との対向面には先端に向かって操作部８１から離れる向きに傾斜するガイド面８４ａが形成されており（図４５参照）、押動突部８４を係合部４８に係合する際にガイド面８４ａと係合部４８が摺接して押動突部８４が鎖錠部４４ａの方へ案内されるから仮止め作業が容易に行えるものである。そして、解除釦８０をボディ１０に組み込んだ後に端子板４１を解除釦８０の駆動部８２に近づく向き（図４９（ｂ）における上向き）に押すと、係合部４８がガイド面８４ａに摺接しながら反係合向きに移動して押動突部８４との係合が外れ、端子板４１に対する解除釦８０の仮止め状態が解除されることになる。
【００９２】
一方、接地極用の解除釦２００も合成樹脂成型品からなり、図５０に示すように略矩形の操作部２０１と、操作部２０１の一側面における一端から側方へ突出する駆動部２０２と、前記側面における他端から側方へ突出する腕部２０３と、腕部２０３の先端から駆動部２０２の方へ突出する押動突部２０４とが一体に形成されている。腕部２０３は操作部２０１の幅寸法よりも狭い幅寸法に形成されている（図５０（ｂ）参照）。また駆動部２０２は、腕部２０３に比較して操作部２０１からの突出量が大きくなっており、腕部２０３と対向する内側面（図５０（ａ）における下面）には下方及び一側方に開放する凹所２０２ａが形成されている。腕部２０３と対向する凹所２０２ａの底面には、先端から操作部２０１に向かって徐々に腕部２０３から遠ざかる向きに傾斜する傾斜面２０２ｂが形成されている。また、駆動部２０２における復帰ばね９０のばね片９１先端が当接する面２０２ｃを復帰ばね９０の付勢向きにくぼんだ形状としてある。さらに、操作部２０１の駆動部２０２が突出する一端の外側面には、収納室１３ｃに収納されたときに刃受ブロック３０Ｃの刃受３１Ｃを逃がす逃がし部２０５が凹設されており、解除釦２００が刃受３１Ｃと干渉するのを防ぐと同時に解除釦２００と刃受３１Ｃとの距離を近づけて器体１の小型化が図れる（図３４参照）。
【００９３】
ところで、図３２に示すようにボディ１０底面においては、長手方向両端中央の電線挿入孔１１が設けられた部位には後方へ突出する突台部２が設けられ、さらにこれら突台部２の間、すなわちボディ１０底面の略中央にも突台部２よりも僅かに後方へ突出した突台部３が設けられており、この中央の突台部３にボディ１０内の収納室１３ｃに貫通する電線挿入孔１１が設けられている。なお、両端の突台部２はボディ１０の短手方向両側面の中央に突設されている突部１６と一体に形成されている。また、ボディ１０底面中央における突台部２，３に囲まれた部位にはボディ１０の内側にくぼんだ凹所４が設けられ、突台部３の凹所４に臨む側面から凹所４の底面に渡って収納室１３ｃに通じる一対の挿通溝５が形成されている。そして、これらの挿通溝５に操作部２０１を挿通するようにして解除釦２００がボディ１０内の収納室１３ｃにおいて端子板４１’に対向して配設され、端子板４１’に取り付けられた復帰ばね９０により操作部２０１が挿通溝５から突出する向きに弾性付勢されて収納室１３ｃに収納されている。（図５１参照）。なお、解除釦２００をボディ１０に組み込む際に駆動部２０２が端子板４１’から離れる向きに解除釦２００が倒れるのを防止するため、図５１（ａ）に示すようにボディ１０の収納室１３ｃには解除釦２００に当接して支持する倒れ防止手段たるリブ１７が設けられており、解除釦２００の倒れを防いで組立作業性の向上が図られている。
【００９４】
而して、電線挿入孔１１を通して端子板４１’の接触片４３と鎖錠片４４の間に電線を挿入して端子板４１’に電線を接続すると、電線の先端が解除釦２００の駆動部２０２の凹所２０２ａに形成された傾斜面２０２ｂに当接し、電線の挿入力によって、駆動部２０２がカバー２０に近付く向き及び操作部２０１が器体１内に進入する向きに解除釦２００が押駆動される。その結果、端子板４１’に電線が接続された状態では、操作部２０１の一部が器体１内部に引き込まれた位置（接続位置）まで移動することになる（図５１（ｂ）参照）。つまり、解除釦２００の操作部２０１が非接続位置と接続位置の間で移動自在となっており、操作部２０１の位置（非接続位置又は接続位置）によって電線が端子板４１’と接続されているか否かを確認することができる。また、解除釦２００が器体１の前後方向及び長手方向の２つの方向に移動自在としてあるから、１つの方向のみで移動する場合に比較して視認性が向上するものである。なお、解除釦２００の操作部２０１をボディ１０と異なる色に着色すれば、解除釦２００の位置が視認し易くなる。
【００９５】
一方、端子板４１’に接続されている電線を引き抜くには、挿通溝５を通して器体１底面の凹所４に露出している操作部２０１を指で押操作し、接続位置からさらに器体１内部に解除釦２００を移動させると、解除釦２００の腕部２０３先端に突設されている押動突部２０４で端子板４１’の鎖錠部４４ａの先端を押圧することにより、電線に食い込んでいる鎖錠部４４ａを電線から離すように鎖錠片４４を撓ませて電線の引き抜きが可能となる。また、電線を引き抜いた後に操作部２０１の押操作を止めれば、復帰ばね９０のばね力によって解除釦２００が移動し、操作部２０１が非接続位置に自動的に復帰する。なお、凹所４によって操作部２０１を操作するスペースが確保でき、その結果、接地極用の端子部４０が器体１の底面から突出する量、つまり突台部３の器体１底面からの突出量を抑えて器体１の小型化が図れるものである。また本実施形態では、凹所４の周面（突台部２，３の凹所４に臨む側面）を凹所４の底面に向けて凹所４側に傾斜する傾斜面２ａ，３ａとし、凹所４の開口面積を広げて指を入れ易くし解除釦２００の操作性を向上させている。
【００９６】
既に説明したようにカバー２０の前壁にはユニバーサルタイプの差込部２４とＯタイプの差込部２４’が形成されている。そして、ボディ１０とカバー２０との双方に設けた嵌合部６，７に組立部材２１０を凹凸嵌合することでボディ１０とカバー２０とを結合して器体１が組み立てられる。
【００９７】
ボディ１０の短手方向に対向する両側面には、図３２に示すように一対の縦溝１５が設けられた中央部を挟んだ両側に矩形の嵌合部６がそれぞれ突設され、さらに各嵌合部６の前方（図３２（ｂ）における左方）には凹溝８がそれぞれ形成されている。一方、カバー２０の短手方向の両側面には、図３３に示すようボディ１０の縦溝１５と連通する一対の挿通溝２１が長手方向の中央部に設けられるとともに挿通溝２１を挟んだ両側にボディ１０の嵌合部６と同形状且つ同寸法の嵌合部７がそれぞれ突設されている。そして、ボディ１０の開口面にカバー２０を突き合わせた状態では、それぞれの嵌合部６，７が凹溝８を挟んで一列に配置されることになる。
【００９８】
組立部材２１０は弾性を有する合成樹脂成型品からなり、図２９及び図３０に示すように嵌合部６，７と各々嵌合する一対の嵌合孔２１１が器体１の前後方向（図２９における上下方向）に並設された短冊状の一対の結合片２１２と、両結合片２１２の先端にそれぞれ端部が連結された帯状の横片２１３とを有する略コ字形に形成され、器体１と対向する結合片２１２の背面側において嵌合孔２１１に挟まれた略中央部からは先端に係止爪２１４ａを有する係止突片２１４が背方へ突設されている。また、各嵌合片２１１には取付枠やプレートの係合孔と係合する取付爪２１５が嵌合孔２１１と一列に並ぶように外向きに突設されている。
【００９９】
一方、カバー２０には、ボディ１０の凹溝８から挿入される組立部材２１０の係止突片２１４先端部に設けた係止爪２１４ａが係止する被係止部２６が短手方向に対向する両側壁に形成されている（図３３参照）。なお、カバー２０の両側壁の内側における嵌合部７近傍には内側に向かうにつれて後方へ傾斜して係止爪２１４ａを被係止部２６に案内するガイド面２７が形成されている。
【０１００】
而して、ボディ１０とカバー２０とを結合して器体１を組み立てるには、ボディ１０とカバー２０を開口面側で突き合わせた状態で係止突片２１４を凹溝８に挿入するように組立部材２１０を器体１の短手方向両側面の方へ押しつければ、組立部材２１０の各嵌合孔２１１にボディ１０及びカバー２０の嵌合部６，７がそれぞれ嵌合してボディ１０とカバー２０とが結合されると同時に、係止突片２１４の先端に設けた係止爪２１４ａがカバー２０のガイド面２７に沿うように係止突片２１４が後方（ボディ１０側）に撓み、やがて係止爪２１４ａがカバー２０の被係止部２６に係止することによって、組立部材２１０の嵌合部６，７からの脱落が防止できる。なお、横片２１３の中央部は器体１の側面に露出する解除釦８０を逃げるために屈曲させてある。
【０１０１】
ところで、カバー２０の内部にはユニバーサルタイプの差込部２４を開閉自在に閉塞する第１の扉２４０と、Ｏタイプの差込部２４’を開閉自在に閉塞する第２の扉２５０と、ボディ１０前面とカバー２０の前壁との間に配設され、第１及び第２の扉２４０，２５０をカバー２０の内側に収納するようにしてスライド移動自在に支持する中枠２６０とが納められる。すなわち、差込部２４，２４’に差し込まれた栓刃の先端に押されて第１及び第２の扉２４０，２５０が中枠２６０に支持された状態でスライド移動することで差込部２４，２４’を開き、中枠２６０に貫設されている栓刃挿通孔２６１等を通して栓刃が刃受３１Ａ，３１Ｂに接続可能となる。また、栓刃を差込部２４，２４’から引き抜くとコイルばねからなる復帰ばね２５４によって第１及び第２の扉２４０，２５０がスライド移動して元の位置、すなわち差込部２４，２４’を閉じる位置に復帰し、プラグの栓刃以外の異物が差込部２４，２４’に差し込まれるのを防ぐことができる。
【０１０２】
また、本実施形態も実施形態１と同様にプレート１００を用いて壁面などの造営面に埋込配設される。このとき、器体１背面の突台部３が凹所４に対して鉛直上方に位置する向き、すなわち、ユニバーサルタイプの差込部２４がＯタイプの差込部２４’の上に位置する向きに埋込配設された場合、凹所４の鉛直上方が突台部３（端子部）によって遮られるため、埃などが凹所４に溜まるのを抑えることができる。また、施工現場においてはプレート枠１１０に器体１を取り付けた状態で電線を接続する場合があるが、この場合に器体１から突出している解除釦８０の操作部８１がプレート枠１１０に干渉して正規の非接続位置まで移動できないと電線の接続作業が困難になる虞がある。そこで本実施形態では、解除釦８０の駆動部８２の背面（縦溝１５から器体１の外に露出する面）を傾斜させることでプレート枠１１０を逃げるようにしている（図５２参照）。
【０１０３】
ところで、電圧極用の解除釦８０は非接続位置において器体１の外へ突出しているため、実際に施工されるまでの間に解除釦８０と器体１とのすきまから埃が進入する虞がある。そこで、実際に施工されるまでの間だけ、図５３（ａ）に示すように円筒形の軸部２８１の後端に軸部２８１よりも径の大きい円盤状の頭部２８２が設けられた固定ピン２８０を電線挿入孔１１に挿入して解除釦８０を接続位置に固定すれば、解除釦８０と器体１のすきまが狭められるから埃の進入を抑えることができる（図５３（ｂ）参照）。そして、実際の施工時には固定ピン２８０を抜いて電線を接続すればよい。
【０１０４】
（実施形態３）
実施形態２はユニバーサルタイプの差込部２４とＯタイプの接地極付きの差込部２４’を３個モジュールの器体１に備えるものであったが、本実施形態は、図５４〜図５６に示すようにＯタイプの接地極付きの差込部２４’を３個モジュールの器体１に２つ備えたものである。
【０１０５】
図５７に示すように、ボディ１０の内部は仕切壁１２により内部空間が３分されており、カバー２０内に収納される中枠２６０’でボディ１０の前面が覆われることによって器体１の内部空間が独立した３つの収納室１３ａ，１３ｂ，１３ｃに分割される。また、両端の収納室１３ａ，１３ｂはスリット１２ａを有した一対の仕切壁１２ｂによりさらにボディ１０の長手方向に沿って３室に分割されている。
【０１０６】
ボディ１０内において両端の収納室１３ａ，１３ｂには電圧極用の刃受ブロック３０Ａ，３０Ｂがそれぞれ収納される。刃受ブロック３０Ａ，３０Ｂは、端子板４１の固定片４５にそれぞれＯタイプの刃受３１Ｂがそれぞれ固定されて構成され、各刃受３１Ｂを長手方向両端の区画にそれぞれ収納し、端子板４１を長手方向中央の区画に収納するようにしてボディ１０両端の収納室１３ａ，１３ｂに納められる。
【０１０７】
一方、ボディ１０内において中央の収納室１３ｃには接地極用の刃受ブロック３０Ｃが収納される。この刃受ブロック３０Ｃは、Ｏタイプの２つの刃受３１Ｂが脚片３５によって連結され、この脚片３５に設けられた結合片３６で端子板４１’に固定される。すなわち、結合片３６に貫設されている位置決め用孔３６ｂに端子板４１’の主片４２に突設されている位置決め突起４２ｂを嵌合して端子板４１’と刃受３１Ｃを位置決めするとともに、結合片３６に突設されているかしめ用突起３６ａを主片４２に貫設されているかしめ用孔４２ａに挿通してかしめることで端子板４１’の主片４２と刃受３１Ｃの結合片３６が結合されて刃受ブロック３０Ｃが構成される。
【０１０８】
なお、図５９（ａ）に示すように刃受３１Ｂと端子板４１を金属部材を加工して一体に形成すれば、かしめ等の結合作業が不要となる利点がある。ここで、刃受３１Ｂの構造として、例えば、図５９（ａ）に示すように一対の刃受ばね３２をその後端縁、すなわち栓刃の差込方向において栓刃の先端に連結片３４が対向するように連結する構造や、図５９（ｂ）に示すように一対の刃受ばね３２をその側端縁、すなわち連結片３４が栓刃の差込方向に沿うように連結する構造が考えられるが、前者の構造では後者の構造に比較して刃受ばね３２のばね性において優れ、後者の構造では前者の構造に比較して金属部材から打ち抜き加工する際の所謂板取りにおいて優れており、必要な性能に鑑みて何れかの構造を適宜選択して組み合わせればよい。
【０１０９】
各収納室１３ａ〜１３ｃには端子板４１，４１’とともに解除釦８０，２００が収納されて端子部４０が構成されるが、これら端子部４０の構成は実施形態２と共通であるから説明を省略する。
【０１１０】
本実施形態における組立部材２２０は弾性を有する合成樹脂成型品からなり、図６０に示すように嵌合部６，７と嵌合する一対の嵌合孔２２１が器体１の前後方向（図６０における上下方向）に並設された短冊状に形成され、器体１と対向する背面側において嵌合孔２２１に挟まれた略中央部からは先端に係止爪２２４ａを有する係止突片２２４が背方へ突設されるとともに、取付枠やプレートの係合孔と係合する取付爪２２５が嵌合孔２２１と一列に並ぶように外向きに突設されている。
【０１１１】
而して、ボディ１０とカバー２０を開口面側で突き合わせた状態で係止突片２１４を凹溝８に挿入するように組立部材２２０を器体１の短手方向両側面の方へ押しつければ、組立部材２２０の各嵌合孔２２１にボディ１０及びカバー２０の嵌合部６，７がそれぞれ嵌合してボディ１０とカバー２０とが結合されると同時に、係止突片２２４の先端に設けた係止爪２２４ａがカバー２０のガイド面２７に沿うように係止突片２２４が後方（ボディ１０側）に撓み、やがて係止爪２２４ａがカバー２０の被係止部２６に係止することによって、組立部材２２０の嵌合部６，７からの脱落が防止できる。
【０１１２】
また、カバー２０の内部にはＯタイプの差込部２４’を開閉自在に閉塞する２つの扉２５０と、ボディ１０前面とカバー２０の前壁との間に配設され、扉２５０をカバー２０の内側に収納するようにしてスライド移動自在に支持する中枠２６０’とが納められる。すなわち、差込部２４’に差し込まれた栓刃の先端に押されて扉２５０が中枠２６０’に支持された状態でスライド移動することで差込部２４’を開き、中枠２６０’に貫設されている栓刃挿通孔２６１’を通して栓刃が刃受３１Ｂに接続可能となる。また、栓刃を差込部２４’から引き抜くとコイルばねからなる復帰ばね２５４によって扉２５０がスライド移動して元の位置、すなわち差込部２４’を閉じる位置に復帰し、プラグの栓刃以外の異物が差込部２４’に差し込まれるのを防ぐことができる。
【０１１３】
なお、図６１に示すように組立部材２２０の取付爪２２５が設けられている側の端部の幅寸法を他の部位の幅寸法よりも狭くすれば、ボディ１０及びカバー２０に対する組立部材２２０の嵌合向きが分かり易くなり作業性が向上するという利点がある。
【０１１４】
（実施形態４）
実施形態３はＯタイプの接地極付きの差込部２４’を３個モジュールの器体１に２つ備えるものであったが、本実施形態は、図６２〜図６４に示すようにＯタイプの接地極付きの差込部２４’を２個モジュールの器体１に１つだけ備えたものである。
【０１１５】
図６５に示すように、ボディ１０の内部は仕切壁１２により内部空間が３分されており、カバー２０内に収納される中枠２６０”でボディ１０の前面が覆われることによって器体１の内部空間が独立した３つの収納室１３ａ，１３ｂ，１３ｃに分割される。また、両端の収納室１３ａ，１３ｂはスリット１２ａを有した一対の仕切壁１２ｂによりさらにボディ１０の長手方向に沿って２室に分割されている。
【０１１６】
ボディ１０内において両端の収納室１３ａ，１３ｂには電圧極用の刃受ブロック３０Ａ，３０Ｂがそれぞれ収納される。刃受ブロック３０Ａ，３０Ｂは、端子板４１の片方の固定片４５にＯタイプの刃受３１Ｂが固定されて構成され、各刃受３１Ｂを長手方向両端の区画にそれぞれ収納し、端子板４１を長手方向中央の区画に収納するようにしてボディ１０両端の収納室１３ａ，１３ｂに納められる。
【０１１７】
一方、ボディ１０内において中央の収納室１３ｃには接地極用の刃受ブロック３０Ｃが収納される。但し、この刃受ブロック３０Ｃは実施形態２における刃受ブロック３０Ｃと同一構成のものである。なお、図６７（ａ）に示すように刃受３１Ｂと端子板４１を金属部材を加工して一体に形成すれば、かしめ等の結合作業が不要となる利点がある。ここで、刃受３１Ｂの構造として、例えば、図６７（ａ）に示すように一対の刃受ばね３２をその後端縁、すなわち栓刃の差込方向において栓刃の先端に連結片３４が対向するように連結する構造や、図６７（ｂ）に示すように一対の刃受ばね３２をその側端縁、すなわち連結片３４が栓刃の差込方向に沿うように連結する構造が考えられるが、前者の構造では後者の構造に比較して刃受ばね３２のばね性において優れ、後者の構造では前者の構造に比較して金属部材から打ち抜き加工する際の所謂板取りにおいて優れており、必要な性能に鑑みて何れかの構造を適宜選択して組み合わせればよい。
【０１１８】
各収納室１３ａ〜１３ｃには端子板４１，４１’とともに解除釦８０，２００が収納されて端子部４０が構成されるが、これら端子部４０の構成は実施形態２と共通であるから説明を省略する。
【０１１９】
ここで、本実施形態における組立部材２２０は実施形態３と同一のものが使用できる。すなわち、組立部材２２０は取付枠やプレートの係合孔と係合する取付爪２２５が嵌合孔２２１と一列に並ぶように外向きに突設されて構成されるものであるから、器体１の短手方向両側面においてプレート枠１１０の保持溝１１４ａ，１１５ａに応じた位置に嵌合部６，７及び凹溝８を設けることで３個モジュールの器体１と２個モジュールの器体１とで組立部材２２０を共用することができ、それぞれに専用の組立部材を使用する場合に比較して部品種の削減によるコストダウンが図れるものである。
【０１２０】
また、カバー２０の内部にはＯタイプの差込部２４’を開閉自在に閉塞する扉２５０と、ボディ１０前面とカバー２０の前壁との間に配設され、扉２５０をカバー２０の内側に収納するようにしてスライド移動自在に支持する中枠２６０”とが納められる。すなわち、差込部２４’に差し込まれた栓刃の先端に押されて扉２５０が中枠２６０”に支持された状態でスライド移動することで差込部２４’を開き、中枠２６０”に貫設されている栓刃挿通孔２６１”を通して栓刃が刃受３１Ｂに接続可能となる。また、栓刃を差込部２４’から引き抜くと復帰ばね２５４によって扉２５０がスライド移動して元の位置、すなわち差込部２４’を閉じる位置に復帰し、プラグの栓刃以外の異物が差込部２４’に差し込まれるのを防ぐことができる。
【０１２１】
ところで、実施形態１〜４の端子部４０において、例えば解除釦６０の操作時に押圧突部６４から端子板４１の鎖錠片４４に加えられる押圧力は鎖錠片４４の幅方向における片側に偏っているから、鎖錠片４４は押圧方向に歪みながら撓むことになり、鎖錠部４４ａを電線から引き離すために余計に押圧力が必要になっている。そこで、図６８（ａ）に示すように接触片４３を鎖錠片４４の幅方向における略中央に対向する位置に設けるとともに、同図（ｂ）に示すように解除釦６０の操作部６１から先端部に押動突部６４が突設された２つの腕部６３を略平行に突設し、接触片４３の両側にできるスペースに各腕部６３を配置して２つの押動突部６４により鎖錠片４４の両端を同時に押圧する構成とすればよい。このような構成を採用すれば、鎖錠片４４にバランスよく押圧力を加えることができるから、片側を押圧する場合に比較して鎖錠片４４の歪みが抑えられて解除釦６０の操作性が向上するものである。
【０１２２】
【発明の効果】
請求項１の発明は、配線器具の器体に貫設した電線挿入孔を通して器体に導入される電線に接触する端子板と、電線と端子板を接続する接続手段と、接続手段による接続状態を解除する解除手段とを備え、接続手段は、端子板の方へ突出し端子板との間に挿入される電線を端子板に押圧する押圧部と、先端が電線の一部に食い込んで反挿入方向へ電線を抜け止めする鎖錠部とを有し、解除手段は、操作されたときに鎖錠部の先端を押動して電線から引き離す押動突部を有することを特徴とし、鎖錠部を電線から引き離す際に鎖錠部の先端に押動突部からの押圧力がかかるため、電線の接続状態を解除する際に鎖錠部が変形するのを防ぐことができる。
【０１２３】
請求項２の発明は、請求項１の発明において、解除手段は、器体の表面に露出して手動操作される操作部並びに前記押動突部を有し、接続手段により電線が端子板に接続された接続状態のときの接続位置と電線が端子板に接続されていない非接続状態のときの非接続位置との間で移動自在に器体に配設される解除釦と、解除釦を接続位置から非接続位置に弾性付勢する付勢部材とを具備することを特徴とし、接続手段により電線が端子板に接続されると解除釦が非接続位置から接続位置に移動するため、解除釦の位置によって電線が端子板と接続されたか否かを確認することができ、しかも、電線を取り外すと付勢部材によって弾性付勢されている解除釦が接続位置から非接続位置に復帰するため、解除釦を非接続位置に復帰させる手間が要らず何度でも電線を抜き差しすることができる。
【０１２４】
請求項３の発明は、請求項２の発明において、解除釦は、一端側に押動突部が設けられ、他端側が支持されて揺動自在に器体に配設されたことを特徴とし、解除釦の揺動範囲が大きくとれるから操作性並びに視認性が向上する。
【０１２５】
請求項４の発明は、請求項２又は３の発明において、解除釦の付勢部材が当接する部位を付勢部材による付勢向きにくぼませたことを特徴とし、解除釦の移動量が同じであっても付勢部材の変位量を減らすことができ、付勢部材のへたりを軽減することができる。
【０１２６】
請求項５の発明は、請求項２又は３又は４の発明において、押動突部が設けられた解除釦の一端側に操作部が設けられたことを特徴とし、鎖錠部を押動するのに必要な操作量を低減して操作性が向上する。
【０１２７】
請求項６の発明は、請求項２又は３又は４の発明において、解除釦の操作部以外の部位であって器体の外に露出する部位に、配線器具が取り付けられる取付部材に対する逃げが設けられたことを特徴とし、取付部材との干渉を防いで解除釦の視認性が低下するのと防ぐことができる。。
【０１２８】
請求項７の発明は、請求項１〜６の何れかの発明において、押動突部と係合して解除釦を仮止めする係合部が端子板に設けられたことを特徴とし、端子板に解除釦を仮止めすることで器体への解除釦の組み込み作業が容易に行える。
【０１２９】
請求項８の発明は、請求項７の発明において、押動突部を係合部へ係合する向き並びに係合部との係合が外れる向きに案内するガイド面が押動突部に設けられたことを特徴とし、解除釦を端子板に仮止めする際に及び器体への組み込み後に仮止めを解除する際の作業性が向上する。
【０１３０】
請求項９の発明は、請求項２の発明において、少なくとも電線挿入孔が開口する器体の一面から見たときに非接続位置の解除釦を視認可とし接続位置の解除釦を視認不可とする段差が器体に設けられたことを特徴とし、解除釦の視認可否によって電線が接続されているか否かが簡単に判別できる。
【０１３１】
請求項１０の発明は、請求項３の発明において、解除釦を複数の方向で移動自在としたことを特徴とし、解除釦の視認性がさらに向上する。
【０１３２】
請求項１１の発明は、請求項１０の発明において、解除釦の反操作方向への倒れを防ぐ倒れ防止手段を備えたことを特徴とし、解除釦の倒れを防いで組立の作業性が向上する。
【０１３３】
請求項１２の発明は、請求項１０又は１１の発明において、器体に収納される配線部材を逃がす逃がし部が解除釦に設けられたことを特徴とし、器体の小型化が図れる。
【０１３４】
請求項１３の発明は、請求項１の発明において、解除釦は、鎖錠部の押動方向と直交する方向の両端部近傍をそれぞれ押動する複数の押動突部が設けられてなることを特徴とし、鎖錠部に対して押圧力を均等にはたらかせることができて解除釦の操作性が向上する。
【０１３５】
請求項１４の発明は、請求項２の発明において、端子板を挟み込んで端子板に固定される固定部が付勢部材に設けられたことを特徴とし、付勢部材の組み込み作業が容易に行える。
【０１３６】
請求項１５の発明は、請求項１４の発明において、それぞれに電線が接続される２つの端子板が一体に形成され、個々の端子板に対応する２つの解除釦を弾性付勢する２つの付勢部材を有し、個別に形成された付勢部材の固定部が固定される被固定部と、２つが一体に形成された付勢部材の固定部が固定される被固定部とが端子板に設けられたことを特徴とし、付勢部材が個別に形成されている場合あるいは一体に形成されている場合の何れにも対応可能となり、部品の共通化によるコストダウンが図れるとともに配線器具の構成の幅を広げることができる。。
【０１３７】
請求項１６の発明は、上記目的を達成するために、施工面に設けられる埋込孔に後部を埋め込む形で配設される器体と、器体に収納される請求項１〜１５の何れかに記載された速結端子装置と、器体の側面に設けられ埋込孔の周りに設置される取付枠又は取付枠一体型のプレートに器体を取り付ける取付手段とを備えたことを特徴とし、請求項１〜１６の何れかに記載された発明の効果を奏する配線器具が実現できる。
【０１３８】
請求項１７の発明は、請求項１６の発明において、施工されるまでの間だけ器体の電線挿入孔に挿入されて解除釦を接続位置に固定する固定ピンを備えたことを特徴とし、固定ピンにより解除釦を接続位置に固定することで解除釦と器体のすきまから埃が進入するといった不具合の発生を抑えることができる。
【図面の簡単な説明】
【図１】実施形態１の分解斜視図である。
【図２】同上を示し、（ａ）は正面図、（ｂ）は右側面図、（ｃ）は下面図、（ｄ）は背面図である。
【図３】同上の斜視図である。
【図４】同上におけるボディを示し、（ａ）は正面図、（ｂ）は下面図、（ｃ）は背面図、（ｄ）は右側面図である。
【図５】同上におけるカバーを示し、（ａ）は正面図、（ｂ）は下面図、（ｃ）は右側面図、（ｄ）は背面図である。
【図６】同上における組立部材を示し、（ａ）は正面図、（ｂ）は右側面図、（ｃ）は上面図である。
【図７】同上における刃受を示し、（ａ）は正面図、（ｂ）は下面図、（ｃ）は右側面図である。
【図８】同上における端子板を示し、（ａ）は正面図、（ｂ）は下面図、（ｃ）は右側面図である。
【図９】同上における解除釦を示し、（ａ）は正面図、（ｂ）は下面図、（ｃ）は右側面図である。
【図１０】同上における復帰ばねを示し、（ａ）は正面図、（ｂ）は右側面図、（ｃ）は上面図である。
【図１１】同上における中枠を示し、（ａ）は正面図、（ｂ）は上面図、（ｃ）は右側面図である。
【図１２】同上における扉を示し、（ａ）は正面図、（ｂ）は上面図、（ｃ）は右側面図である。
【図１３】同上の端子板に電線が接続された状態を示す要部断面図である。
【図１４】同上における端子板の説明図である。
【図１５】同上における他の構成の端子板を示す斜視図である。
【図１６】同上におけるさらに他の構成の端子板を示し、（ａ）は斜視図、（ｂ）は電線を接続した状態の側面図である。
【図１７】同上における別の構成の端子板を示す側面図である。
【図１８】同上の端子板に電線が接続された状態を示す要部断面図である。
【図１９】同上におけるさらに別の構成の端子板を示し、（ａ）は分解斜視図、（ｂ）は斜視図である。
【図２０】同上における端子板と復帰ばねの固定方法を説明する図である。
【図２１】同上における解除釦の要部側面図である。
【図２２】同上における端子板と復帰ばねの他の固定方法を説明する図である。
【図２３】同上の背面図である。
【図２４】同上におけるボディとカバーの結合方法を説明する図である。
【図２５】同上におけるボディとカバーの他の結合方法を説明する図である。
【図２６】同上が取り付けられるプレートの正面から見た分解斜視図である。
【図２７】同上が取り付けられるプレートの背面から見た分解斜視図である。
【図２８】同上の器体をプレート枠に取り付ける手順を説明する説明図である。
【図２９】実施形態２の分解斜視図である。
【図３０】同上を示し、（ａ）は正面図、（ｂ）は右側面図、（ｃ）は下面図、（ｄ）は背面図である。
【図３１】同上の斜視図である。
【図３２】同上におけるボディを示し、（ａ）は正面図、（ｂ）は右側面図、（ｃ）は背面図、（ｄ）は下断面図、（ｅ）は下面図である。
【図３３】同上におけるカバーを示し、（ａ）は正面図、（ｂ）は左側面図、（ｃ）は背面図、（ｄ）は上面図、（ｅ）は上断面図である。
【図３４】同上のカバーを外した状態の正面図である。
【図３５】同上におけるユニバーサルタイプの刃受を示し、（ａ）は正面図、（ｂ）は上面図、（ｃ）は左側面図、（ｄ）は下面図、（ｅ）は右側面図、（ｆ）は背面図である。
【図３６】同上におけるＯタイプの電圧極用の刃受を示し、（ａ）は正面図、（ｂ）は上面図、（ｃ）は左側面図、（ｄ）は下面図、（ｅ）は右側面図である。
【図３７】同上における電圧極用の端子板を示し、（ａ）は正面図、（ｂ）は左側面図、（ｃ）は右側面図、（ｄ）は上面図である。
【図３８】同上におけるＯタイプの接地極用の刃受を示し、（ａ）は正面図、（ｂ）は上面図、（ｃ）は右側面図である。
【図３９】同上における接地極用の端子板を示し、（ａ）は正面図、（ｂ）は左側面図、（ｃ）は上面図、（ｄ）は右側面図である。
【図４０】同上における接地極用の端子板を説明する説明図である。
【図４１】同上における電圧極用の刃受ブロックを一体型とした斜視図である。
【図４２】（ａ）〜（ｃ）は同上の一体型の刃受ブロックにおける刃受の構造を示す斜視図である。
【図４３】同上における他の構成の端子板を示す斜視図である。
【図４４】同上における他の構成のボディを示す一部省略した背面図である。
【図４５】同上における電圧極用の解除釦を示し、（ａ）は正面図、（ｂ）は上面図、（ｃ）は右側面図である。
【図４６】同上における復帰ばねを示し、（ａ）は正面図、（ｂ）は上面図、（ｃ）は右側面図である。
【図４７】同上における端子板と復帰ばねの固定方法を説明する図である。
【図４８】同上における端子板と他の構成の復帰ばねの固定方法を説明する図である。
【図４９】同上における解除釦の組み込み作業を説明する説明図である。
【図５０】同上における接地極用の解除釦を示し、（ａ）は正面図、（ｂ）は上面図、（ｃ）は右側面図である。
【図５１】同上における接地極用の端子部を示し、（ａ）は非接続位置の要部断面図、（ｂ）は接続位置の要部断面図である。
【図５２】同上の器体をプレート枠に取り付けた状態の要部断面図である。
【図５３】同上における固定ピンの説明図である。
【図５４】実施形態３の分解斜視図である。
【図５５】同上を示し、（ａ）は正面図、（ｂ）は右側面図、（ｃ）は下面図、（ｄ）は背面図である。
【図５６】同上の斜視図である。
【図５７】同上におけるボディを示し、（ａ）は正面図、（ｂ）は下面図、（ｃ）は右側面図、（ｄ）は背面図である。
【図５８】同上におけるカバーを示し、（ａ）は正面図、（ｂ）は左側面図、（ｃ）は背面図、（ｄ）は下面図である。
【図５９】（ａ）は同上における電圧極用の刃受ブロックを一体型とした斜視図、（ｂ）は一体型の刃受ブロックにおける刃受の構造を示す斜視図である。
【図６０】同上における組立部材を示す斜視図である。
【図６１】同上における他の構成の組立部材を示し、（ａ）は正面図、（ｂ）は右側面図、（ｃ）は上面図である。
【図６２】実施形態４の分解斜視図である。
【図６３】同上を示し、（ａ）は正面図、（ｂ）は右側面図、（ｃ）は下面図、（ｄ）は背面図である。
【図６４】同上の斜視図である。
【図６５】同上におけるボディを示し、（ａ）は正面図、（ｂ）は下面図、（ｃ）は右側面図、（ｄ）は背面図である。
【図６６】同上におけるカバーを示し、（ａ）は正面図、（ｂ）は下面図、（ｃ）は右側面図、（ｄ）は背面図である。
【図６７】（ａ）は同上における電圧極用の刃受ブロックを一体型とした斜視図、（ｂ）は一体型の刃受ブロックにおける刃受の構造を示す斜視図である。
【図６８】（ａ）は別の構成の端子板を示す斜視図、（ｂ）は別の構成の解除釦を示す斜視図である。
【図６９】従来例の要部を示す断面図である。
【図７０】同上における電線の取り外し作業を説明するための説明図である。
【図７１】同上における電線と端子板との接続構成を説明する説明図である。
【符号の説明】
１器体
４０端子部
４１端子板
４３接触片
４３ａ接触部
４３ｂ押圧部
４３ｃ押圧部
４４鎖錠片
４４ａ鎖錠部
６０解除釦
６１操作部
６４押動突部[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a quick-connecting terminal device that is housed in a body of a wiring device such as a switch or an outlet and connects an electric wire, and a wiring device.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a wiring device such as a switch or an outlet, a quick connection terminal has been widely used for connecting an electric wire introduced into a body through a wire insertion hole provided in the body. As shown in FIG. 69, this type of quick-connecting terminal includes a terminal plate 302 that is housed in the body 300 and contacts the electric wire 101 introduced into the body 300 through the electric wire insertion hole 301, and between the terminal plate 302 and the terminal plate 302. And a lock spring 303 for holding an electric wire with a lock spring (see, for example, Patent Document 1). The locking spring 303 is a leaf spring, and is formed so as to hold the electric wire 101 by sandwiching the electric wire 101 between the contact piece 303 a provided on the locking spring 303 and the locking piece 303 b and the terminal plate 302. ing. That is, when the electric wire 101 is introduced into the main body 300 through the electric wire insertion hole 301 provided in the main body 300, the electric wire 101 bends in a direction to separate the contact piece 303 a and the lock piece 303 b from the terminal plate 302, and the contact piece 303 a and the chain The electric wire 101 is sandwiched between the terminal plate 302 and the lock piece 303b by a spring force generated in the lock piece 303b. Here, in a state where the electric wire 101 is sandwiched between the terminal plate 302 and the contact piece 303a and the locking piece 303b, the edges of the contact piece 303a and the locking piece 303b elastically contact the electric wire 101, and The wire 101 is prevented from coming off by the lock piece 303b biting into the portion. As described above, since the electric wire 101 is held in a state in which the electric wire 101 is in contact with the terminal plate 302 only by inserting the electric wire 101 into the electric wire insertion hole 301, the connection of the electric wire 101 is compared with a structure in which the electric wire 101 is connected using terminal screws. Work becomes easier.
[0003]
By the way, as shown in FIG. 70, an operation hole 304 is provided through the rear wall of the container 300, and a release button 305 is housed and disposed inside the container 300 on the back side of the operation hole 304. As shown in FIG. 71, the release button 305 is arranged beside the locking spring 303, and the pressing piece 305a that contacts the rear side of the locking piece 303b of the locking spring 303 has a shape protruding from the side surface. The operation hole 304 has a shape such that a tool 310 such as the tip of a flathead screwdriver can be inserted. When the tool 210 is inserted into the operation hole 304 and the release button 305 is pressed forward, the lock piece 303b is pushed. Upon receiving a pressing force from the wire 305a, the wire 305a bends away from the electric wire 101. Therefore, if a tool is inserted into the operation hole 304 and the release button 305 is pressed in a state where the electric wire 101 is connected, the lock piece 303b bends away from the electric wire 101 and the mechanical holding of the electric wire 101 is released. 101 can be pulled out of the body 300.
[0004]
[Patent Document 1]
JP-A-2001-210393 (pages 4-6, FIG. 3)
[0005]
[Problems to be solved by the invention]
By the way, in the above conventional example, the position where the locking piece 303b of the locking spring 303 receives the pressing force from the pressing piece 305a of the release button 305 is shifted closer to the contact piece 303a than the tip, and the locking piece 303b is bent. However, a relatively large pressing force is required, and the pressing force may deform the lock piece 303b.
[0006]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a quick-connecting terminal device and a wiring device that can prevent a lock portion from being deformed when a connection state of an electric wire is released. It is in.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a first aspect of the present invention provides a terminal plate for contacting an electric wire introduced into a body of a wiring device through an electric wire insertion hole penetrating the body, and a connection for connecting the electric wire and the terminal plate. Means, and release means for releasing the connection state by the connection means, wherein the connection means protrudes toward the terminal plate and presses the electric wire inserted between the terminal plate and the terminal plate, and the distal end has an electric wire. And a lock portion that bites into a part of the lock member to prevent the electric wire from coming off in the anti-insertion direction, and the release means pushes the tip of the lock portion when the operation is performed and separates the pressing protrusion from the electric wire. It is characterized by having.
[0008]
According to a second aspect of the present invention, in the first aspect of the present invention, the releasing means has an operating portion exposed on the surface of the container and manually operated and the pushing protrusion, and the electric wire is connected to the terminal plate by the connecting means. A release button movably disposed on the body between a connection position in the connected connection state and a non-connection position in the non-connection state where the electric wire is not connected to the terminal plate, and a release button. A biasing member for elastically biasing the connection position to the non-connection position.
[0009]
The invention according to claim 3 is characterized in that, in the invention according to claim 2, the release button is provided with a pushing protrusion on one end side, and is supported on the other end side and is swingably disposed on the body. I do.
[0010]
A fourth aspect of the present invention is characterized in that, in the second or third aspect of the present invention, a portion of the release button with which the urging member abuts is recessed in the direction of urging by the urging member.
[0011]
The invention of claim 5 is characterized in that, in the invention of claim 2, 3 or 4, an operation section is provided on one end side of a release button provided with a pushing projection.
[0012]
According to a sixth aspect of the present invention, in the second or third or fourth aspect of the present invention, a relief for a mounting member to which a wiring device is mounted is provided at a portion other than the operation portion of the release button and exposed outside the body. It is characterized by having been done.
[0013]
According to a seventh aspect of the present invention, in any one of the first to sixth aspects of the present invention, an engaging portion that engages with the pushing projection and temporarily fixes the release button is provided on the terminal plate.
[0014]
According to an eighth aspect of the present invention, in the invention of the seventh aspect, a guide surface for guiding the pushing protrusion to the direction in which the pushing protrusion is engaged with the engaging portion and the direction in which the pushing protrusion is disengaged from the engaging portion is provided on the pushing protrusion. It is characterized by having been done.
[0015]
According to a ninth aspect of the present invention, in the second aspect, the release button at the non-connection position is visually approved and the release button at the connection position is not visible when viewed from at least one surface of the body where the wire insertion hole is opened. The step is provided on the body.
[0016]
According to a tenth aspect of the present invention, in the third aspect, the release button is movable in a plurality of directions.
[0017]
An eleventh aspect of the present invention is characterized in that, in the tenth aspect of the present invention, a tilt-preventing means for preventing the release button from falling in the opposite direction of operation is provided.
[0018]
According to a twelfth aspect of the present invention, in the tenth or eleventh aspect, a release portion for releasing a wiring member housed in the container is provided on the release button.
[0019]
According to a thirteenth aspect of the present invention, in the first aspect of the present invention, the release button is provided with a plurality of pushing protrusions for pushing the vicinity of both ends in a direction orthogonal to the pushing direction of the lock portion. It is characterized by.
[0020]
A fourteenth aspect of the present invention is characterized in that, in the second aspect of the present invention, the urging member has a fixing portion sandwiching the terminal plate and fixed to the terminal plate.
[0021]
According to a fifteenth aspect of the present invention, in the fourteenth aspect of the present invention, two terminal plates to which electric wires are respectively connected are formed integrally, and two terminal plates for elastically urging two release buttons corresponding to each terminal plate. A fixed portion having a biasing member, to which a fixed portion of an individually formed biasing member is fixed, and a fixed portion to which a fixed portion of the biasing member integrally formed is fixed. It is characterized by being provided in.
[0022]
According to a sixteenth aspect of the present invention, in order to achieve the above object, a container is provided in which a rear portion is embedded in an embedding hole provided in a construction surface, and the container is housed in the container. And a mounting means for mounting the body to a mounting frame or a plate integrated with the mounting frame provided on the side surface of the body and installed around the embedding hole. And
[0023]
According to a seventeenth aspect of the present invention, in the sixteenth aspect, a fixing pin is inserted into the electric wire insertion hole of the body only to fix the release button at the connection position until the construction is performed.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment in which the present invention is applied to an outlet will be described in detail with reference to the drawings. However, the wiring device is not limited to the outlet, and it goes without saying that the technical idea of the present invention can be applied to wiring devices other than the outlet such as a switch.
[0025]
(Embodiment 1)
As shown in FIGS. 1 to 3, the body 1 is made of a thermosetting synthetic resin (e.g., urea resin) having excellent tracking resistance. It is formed by bonding a cover 20 formed in a rectangular parallelepiped shape with an open rear surface using a thermosetting synthetic resin (for example, urea resin) having excellent tracking resistance. The container 1 has a prescribed unit dimension described later.
[0026]
The internal space of the body 10 is divided into two by a partition wall 12 provided at an intermediate portion in the longitudinal direction. Further, a partition wall 180a is formed in the middle frame 180 housed in the cover 20 as described later (see FIG. 11). When the body 10 and the cover 20 are connected, the partition wall 12 of the body 10 and the inside of the cover 20 are formed. The inner space of the housing 1 is divided into two independent chambers by abutting against the partition wall 180a of the middle frame 180 stored in the inner frame 180.
[0027]
In each of the storage chambers 13 formed through the partition wall 12 in the body 10, a blade receiver 31 that receives a plug blade of a plug is stored. As shown in FIG. 7, each blade receiver 31 has a pair of blade receiving springs 32 that sandwich the blade at the distal end portions facing each other, and a U-shape that connects one side surface of both blade receiving springs 32 continuously and integrally. And a blade receiving spring 33 protruding from the connecting piece 34 and facing the side surface of the double blade receiving spring 32. Further, four cylindrical projections 34a are arranged in a row on the connecting piece 34, and terminal plates 41, which will be described later, are caulked and fixed to each of the pair of projections 34a.
[0028]
The terminal section 40 includes a terminal plate 41 and a release button 60. As shown in FIG. 8A, the terminal plate 41 is suspended from a substantially L-shaped main piece 42 and a narrow end of the main piece 42 backward (downward in FIG. 8B, the same applies hereinafter). A contact piece 43, a substantially J-shaped lock piece 44 hanging downward from the thick other end of the main piece 42, and a fixing piece 45 projecting laterally from a side edge of the lock piece 44. An elastic band-shaped metal plate is processed and bent so that the tip of the contact piece 43 and the tip of the lock piece 44 intersect to be integrally formed. The contact piece 43 has a contact portion 43a having a substantially flat surface and elastically contacting the electric wire, and a pair of pressing portions 43b and 43c for pressing the electric wire on both sides of the contact portion 43a along the insertion direction of the electric wire. I have. Further, the locking piece 44 located on the inner side with respect to the contact piece 43 is provided at the tip with a locking part 44a that presses the electric wire toward the contact part 43a and bites into a part of the electric wire to prevent it from falling off. A bent portion 44b that is convex in a direction away from the electric wire (contact piece 42) is provided at a portion behind the lock portion 44a. As shown in FIG. 8C, the width of the contact piece 43 is set to approximately half the width of the lock piece 44. Further, the fixing piece 45 is provided with an insertion hole 45a through which a pair of projections 34a arranged in a row on the coupling piece 34 of the blade receiver 31 is inserted, and the projection 34a inserted through the pair of insertion holes 45a is inserted. By caulking, the fixing piece 45 is fixed to the connecting piece 34 of the blade receiver 31. Then, the blade receiving block 30 including the pair of terminal plates 41 and the blade receiver 31 fixed to the connecting piece 34 so as to be adjacent to the pair of blade receiving springs 32 is stored in each storage chamber 13 of the body 10.
[0029]
An electric wire insertion hole 11 is provided through the bottom wall of the body 10 so that an electric wire can be introduced between the contact piece 43 and the locking piece 44. As shown in FIG. 13, when the electric wire 101 is inserted between the contact piece 43 and the lock piece 44 through the electric wire insertion hole 11, the lock portion 44 a of the lock piece 44 bites into the electric wire 101, so that the electric wire 101 is pulled. At the same time, the wire 101 is elastically contacted with the contact portion 43a of the contact piece 43 by the spring force of the lock piece 44, and the electric wire 101 is further pressed toward the lock piece 44 by the pair of pressing portions 43b and 43c. 44a and the pressing force of the pair of pressing portions 43b and 43c are balanced, and the electric wire 101 is held. However, the pressing portion 43c closer to the main piece 42 has a contact area that is increased by chamfering the surface that comes into contact with the electric wire 101.
[0030]
By the way, the terminal portion in the conventional example is constituted by a quick-connecting terminal device including a terminal plate and a locking spring, and the terminal plate is formed of a metal material having no spring property. For this reason, as shown in FIG. 69 (a), when the electric wire 101 is inserted straight into the terminal plate 302a and the locking spring 303 in a normal state, the contact area between the terminal plate 302a and the electric wire 101 is sufficiently increased. However, when the electric wire 301 is inserted obliquely with respect to the terminal plate 302a and the locking spring 303 as shown in FIG. 2B, the contact area between the terminal plate 302a and the electric wire 101 decreases. There was a fear. On the other hand, in the terminal part 40 of the present embodiment, the electric wire 101 is pressed from both sides (opposite directions) by the two pressing parts 43 b and 43 c of the contact piece 43 and the locking part 44 a of the locking piece 44 as described above. Therefore, even if the electric wire 101 is inserted with an inclination, the pressing force of the two pressing portions 43b and 43c and the locking portion follow the inclination of the electric wire 101 by the spring force of the contact piece 43 and the locking piece 44. The pressing force of the wire 44a can be balanced, and the connection state between the terminal plate 41 and the wire 101 can be stabilized regardless of the inserted state of the wire 101. In addition, by applying a pressing force to the electric wire 101 from the opposite direction by the pressing portions 43b and 43c and the locking portion 44a, the pressing force can be shared by the contact piece 43 and the locking piece 44 in a well-balanced manner. Settling of the lock piece 44 can be suppressed. Moreover, in the present embodiment, the contact portion 43a, the pressing portions 43b, 43c, and the locking portion 44a, which are connection means for connecting the electric wire 101, are formed integrally with the terminal plate 41 by an elastic metal plate. In addition, there is an advantage that the cost can be reduced by reducing the number of parts and the number of assembling steps as compared with the case where two parts, the terminal plate and the locking spring, are required.
[0031]
Here, in the present embodiment, the bent portion 44b is provided on the lock piece 44 of the terminal plate 41. For example, as shown in FIG. If the positions of the locking portions 44a are made to be the same without being provided, the biting angle of the locking portion 44a becomes small, and biting into the electric wire becomes weak. On the other hand, if the lock portions 44a are to be arranged at the same position and at the same angle, the length of the lock pieces 44 is shortened as shown in FIG. turn into. Therefore, by providing the bent portion 44b in the lock piece 44, such a problem can be prevented from occurring, and the spring property of the lock piece 44 is sufficiently ensured, and at the same time, the angle at which the lock portion 44a bites into the electric wire is increased. As a result, the wire can be reliably prevented from coming off.
[0032]
Further, if the tip portion of the locking piece 44 where the locking portion 44a is formed is beaten by pressing or the like, the thickness of the locking portion 44a is slightly reduced as shown in FIG. Deformation due to insertion can be reduced to prevent deterioration of the retaining performance. Further, as shown in FIG. 16, if the surface of the locking portion 44a on the side that bites into the electric wire 101 is tapped, a step generated in the locking portion 44a increases the number of portions that come into contact with the electric wire 101, thereby improving connection reliability. There is an advantage. Further, in the present embodiment, the pressing portion 43c closer to the main piece 42 has a chamfered surface in contact with the electric wire 101. However, as shown in FIG. The wire 101 is made to bite into the electric wire 101 to prevent the electric wire 101 from coming off.
[0033]
By the way, as shown in FIG. 18, a stopper rib 14 is protruded near the wire insertion hole 11 on the bottom surface of the body 10, and when the electric wire 101 is inserted, the tip of the contact piece 43 is brought into contact with the stopper rib 14 to bend the contact piece 43. If the amount is regulated, it is possible to prevent the contact piece 43 from excessively bending and being plastically deformed. If the position of the stopper rib 14 is set at a position where the contact surface of the contact portion 43a is substantially parallel to the insertion direction of the electric wire 101 and the bending of the contact piece 43 can be regulated, as shown in FIG. There is an advantage that the contact area between the contact portion 43a and the electric wire 101 is maximized in a regulated state, that is, the surface can be brought into surface contact, and the connection reliability can be improved.
[0034]
Further, in the present embodiment, the contact piece 43 and the lock piece 44 are formed integrally with the terminal plate 41, but the contact piece 43 in which the conductivity is more important and the spring property are more important. The lock piece 44 may be formed as a separate member. For example, as shown in FIG. 19, a first member 41A in which a main piece 42 and a contact piece 43 are integrally formed, and a second member 41B in which a lock piece 44 is formed, are provided on the main piece 42. The terminal plate 41 may be formed by connecting the first and second members 41A and 41B by penetrating the formed protrusion 42a into a through hole 44c provided in the lock piece 44 and caulking. Thus, a metal material having excellent electrical conductivity is used for the first member 41A on which the contact piece 43 is formed, and a metal material having excellent spring properties is used for the second member 41B on which the lock piece 44 is formed. Since it can be used, there is an advantage that a general material can be used without using a special and relatively expensive material that satisfies both performances, and the cost can be reduced.
[0035]
By the way, a release button 60 constituting the terminal unit 40 together with the terminal plate 41 is provided in each storage room 13. The release button 60 is made of a synthetic resin molded product, and has a substantially P-shaped operation part 61 as shown in FIGS. 1 and 9, a driving part 62 projecting laterally from one end on one side surface of the operation part 61, An arm portion 63 protruding laterally from the other end of the side surface, and a pushing protrusion 64 protruding from the distal end of the arm portion 63 toward the driving portion 62 are integrally formed. The arm 63 is formed to have a width smaller than the width of the operation unit 61 (see FIG. 9C). Further, the drive unit 62 has a larger protrusion amount from the operation unit 61 than the arm unit 63, and has an inner surface (a lower surface in FIG. 9B) facing the arm unit 63 at a lower side and one side. A recess 62a is formed to open at the bottom. An inclined surface 62b is formed on the bottom surface of the concave portion 62a facing the arm portion 63 so as to be gradually inclined from the distal end toward the operation portion 61 in a direction away from the arm portion 63. A protrusion 65 having a substantially trapezoidal cross section is provided on the outer surface (the upper surface in FIG. 9B) of the distal end portion of the drive unit 62.
[0036]
On the other hand, on both side surfaces in the longitudinal direction of the body 10, a pair of vertical grooves 15 communicating with the storage chambers 13 is provided side by side, and a release button 60 is provided so that the operation unit 61 is inserted into the vertical grooves 15. It is arranged in each storage room 13 in the body 10. Here, the release button 60 faces a portion where the arm 63 does not face the contact piece 43 in the lock piece 44 of the terminal plate 41, and the wire insertion hole 11 of the body 10 faces the recess 62 a of the drive unit 62. The operation unit 61 is movably disposed in the storage chamber 13 so as to project from the vertical groove 15 so as to be able to advance and retreat. As described above, since the width of the contact piece 43 is smaller than the width of the lock piece 44, the facing area between the arm 63 and the lock piece 44 can be increased. I have. In addition, return springs 70 that elastically urge the operation portion 61 in a direction protruding from the vertical groove 15 to return the release button 60 to a position where the electric wire is not connected (disconnection position) are housed in each storage room 13. Have been.
[0037]
As shown in FIG. 10, the return spring 70 has a front end bent at a substantially right angle and a rear end bent at a substantially elliptical shape. A pair of fixing portions 72 protruding to the side are integrally formed. The fixing portion 72 has a distal end portion curved in a substantially U-shape, and as shown in FIG. 20, sandwiches the fixed portion 46 formed of a notch provided in a portion of the locking piece 44 of the terminal plate 41 near the main piece 42. The return spring 70 is fixed (temporarily fixed) to the terminal plate 41. When the blade receiving block 30 in which the return spring 70 is temporarily fixed to the terminal plate 41 is stored in the storage chamber 13, the terminal plate 41 comes into contact with the inner wall of the body 10, and the rear end of the spring piece 71 is held, and the return is performed. The spring 70 is permanently fixed to the terminal plate 41. Further, if the release button 60 is disposed in the storage chamber 13, the distal ends of the spring pieces 71 of the return spring 70 abut against the distal ends of the drive portions 62 of the release buttons 60, respectively, and are disconnected by the spring force of the spring pieces 71. The release button 60 is elastically biased in a direction to return to the position (the position where the operation unit 61 projects from the vertical groove 15 of the body 10). The release button 60 is prevented from coming off the body 1 by bringing the drive unit 62 into contact with the inner wall surface of the cover 20.
[0038]
When the electric wire is inserted between the contact piece 43 of the terminal plate 41 and the locking piece 44 through the electric wire insertion hole 11 and the electric wire is connected to the terminal portion 40 (terminal plate 41), the end of the electric wire is released. The drive unit 62 abuts on the inclined surface 62b formed in the recess 62a of the drive unit 62, and the drive force of the drive unit 62 approaches the cover 20 and the operation unit 61 moves due to the insertion force of the wire (the force acting in the wire insertion direction). The release button 60 is pressed and driven so as to enter the inside of the button 1. As a result, in a state where the electric wire is connected to the terminal unit 40, a part of the operation unit 61 moves to a position (connection position) where the operation unit 61 is drawn into the inside of the body 1. That is, the operation unit 61 of the release button 60 is movable between the non-connection position and the connection position, and whether the electric wire is connected to the terminal plate 41 depending on the position of the operation unit 61 (the non-connection position or the connection position). It is possible to confirm whether or not. When the electric wire is connected, the release button 60 is pushed up in a direction approaching the cover 20 by the insertion force of the electric wire as described above, but a step is formed on the inner bottom surface of the cover 20 facing the drive unit 62 of the release button 60. (Not shown) is formed, and the projection 65 provided on the drive unit 62 emits a sound (for example, an impact sound such as “click”) when climbing over the step. The connection to the plate 41 can be confirmed.
[0039]
On the other hand, in order to pull out the electric wire connected to the terminal portion 40, the operation portion 61 exposed on the side surface of the body 1 through the vertical groove 15 may be pushed with a finger. When the release button 60 is further moved from the connection position to the inside of the housing 1 by pushing the operation portion 61, the chain of the terminal plate 41 is pushed by the pushing projection 64 projecting from the end of the arm 63 of the release button 60. By pressing the tip of the lock portion 44a, the lock piece 44 is bent so that the lock portion 44 biting into the electric wire is separated from the electric wire, and the electric wire can be pulled out. Here, in the present embodiment, the distal end of the lock portion 44a is pressed by the pushing protrusion 64 projecting from the distal end of the arm portion 63 of the release button 60, so that the lock piece 44 is moved from the lock portion 44a. It is possible to prevent the lock portion 44a (the lock piece 44) from being deformed (plastically deformed) when the connection state of the electric wire is released, as compared with a case where the wire is pressed at a distant position.
[0040]
In the conventional quick-connect terminal device, it is necessary to pull out the electric wire while operating the release button using a tool, so hold the body of the wiring device with one hand and insert the tool held in the other hand into the operation hole. When the release button is operated, both hands are closed, and it is difficult to pull out the electric wire from the electric wire insertion hole. On the other hand, in the present embodiment, the finger (for example, thumb) of the hand holding the body 1 pushes the operation portion 61 of the release button 60 exposed on the side surface of the body 1 so that the chain bites into the electric wire. Since the lock portion 44a can be separated from the electric wire, the holding of the body 1 and the operation of the release button 60 can be performed simultaneously with one hand, and the electric wire can be pulled out with the other hand, so that it can be compared with the conventional quick connection terminal device. The wire can be easily removed. When the pushing operation of the operation unit 61 is stopped after the electric wire is pulled out, the release button 60 is moved by the spring force of the return spring 70, and the operation unit 61 automatically returns to the non-connection position. The wire can be inserted and removed any number of times without the trouble of returning to the non-connection position.
[0041]
Here, the release button 60 is prevented from falling out of the vertical groove 15 of the body 1 in the drive unit 62 and is in a free state on the arm 63 side. Is more freely swingable, and the protrusion amount of the release button 60 in the non-connection position is increased to improve visibility and operability, as compared with a case where only the parallel movement is possible by preventing the arm 63 from slipping off. Can be increased. Further, as shown in FIG. 9, the surface 62 c of the drive portion 62 of the release button 60 with which the tip of the spring piece 71 of the return spring 70 abuts is formed in a concave shape in the biasing direction of the return spring 70. As shown in FIG. 7, the displacement of the return spring 70 can be reduced even if the release button 60 is moved the same amount as compared with the case where the contact surface 62c is flat, and the set of the return spring 70 can be reduced. (See FIG. 21B).
[0042]
In this embodiment, the fixing portion 72 provided on the return spring 70 is temporarily fixed to the fixed portion 46 of the terminal plate 41. However, as shown in FIG. As compared with the case where the blade receiving block 30 is inserted into the locking hole 73 provided in the return spring 70 and temporarily fixed, even when a slight impact is applied when the blade receiving block 30 is incorporated into the body 10, the return spring 70 is connected to the terminal plate 41. There is an advantage that it is difficult to fall off from the device and the workability can be improved.
[0043]
By the way, a pair of protrusions 16 projecting in the longitudinal direction of the body 10 are protrudingly provided at positions near the rear end of the longitudinal groove 15 on both side surfaces in the longitudinal direction of the body 10, so that a step is formed between the side surfaces of the body 10. ing. That is, at the connection position, the operation portion 61 of the release button 60 slightly protrudes from the side surface of the body 1 (the body 10). Since the step is formed, when viewed from the bottom side of the container 1 (the body 10) in which the wire insertion hole 11 is opened, as shown in FIG. The operation part 61 of the release button 60 at the connection position is hidden behind the protrusion 16 and cannot be seen, whereas the release button 60 when viewed from the bottom of the body 1 is seen while protruding outward from the protrusion 16. , The connection state of the electric wire can be easily determined based on the visual approval.
[0044]
By the way, a single insertion port 24 into which a pair of blades provided in one plug can be inserted is formed in the front wall of the cover 20. The insertion portion 24 includes insertion ports 25 opened at portions corresponding to the blade receiving springs 32 and 33 of the respective blade receivers 31. Each of the insertion ports 25 has a flat-type plug blade into which a flat-type flat plug blade is inserted. The port 25a is formed in a shape in which a pin-type blade insert port 25b into which a round pin-shaped pin-type blade is inserted is communicated. That is, the flat-type blade insertion port 25a has a rectangular shape, and has a shape in which a circular pin-type blade insertion port 25b communicates with one side edge of an intermediate portion in the longitudinal direction. In addition, the distance between the centers of the pin-type blade insertion ports 25b is wider than the distance between the centers of the flat-type blade insertion ports 25a. The flat blade inserted into the flat blade insertion slot 25a is sandwiched between the side surface of the blade receiving spring 32 and the blade receiving spring 33, and the pin type blade inserted into the pin type blade insertion port 25b is It is sandwiched between a pair of blade receiving springs 32.
[0045]
Next, a structure in which the body 10 is assembled by connecting the body 10 and the cover 20 will be described. That is, in the present embodiment, the body 10 and the cover 20 are connected to each other by fitting the assembling member 50 to the fitting portions 6 and 7 provided on both the body 10 and the cover 20 so that the body 1 is formed. It is designed to be assembled.
[0046]
As shown in FIG. 4, a rectangular fitting portion 6 protrudes from a central portion sandwiched between a pair of vertical grooves 15 on both side surfaces of the body 10 opposed to each other in the longitudinal direction. 4 (d), a concave groove 8 is formed. On the other hand, a pair of insertion grooves 21 communicating with the vertical grooves 15 of the body 10 is provided on both longitudinal sides of the cover 20 as shown in FIG. A fitting portion 7 having the same shape and the same size as the mating portion 6 is protruded. When the cover 20 is in contact with the opening surface of the body 10, the respective fitting portions 6 and 7 are arranged in a line with the concave groove 8 interposed therebetween.
[0047]
The assembling member 50 is made of an elastic synthetic resin molded product. As shown in FIG. 6, fitting holes 51 and 51 respectively fitted with the fitting portions 6 and 7 are provided in the front-rear direction (vertical direction in FIG. ) Are formed in a substantially T-shape having a strip-shaped vertical piece 52 arranged side by side and a strip-shaped horizontal piece 53 whose center is connected to the tip of the vertical piece 52, and face the body 1. A locking projection 54 having a locking claw 54a at the end protrudes rearward from a substantially central portion sandwiched between the fitting holes 51 on the back side of 52. In addition, on the side surface of the horizontal piece 53, a mounting frame for embedding an embedded wiring device on the construction surface, or a flash plate having a wiring device mounting structure (hereinafter simply referred to as a “plate”). Are provided with a pair of mounting portions (mounting claws) 55 that are engaged with the engaging holes provided in the mounting frame 1 to mount the body 1 to the mounting frame.
[0048]
On the other hand, the cover 20 has a locked portion 26 to which a locking claw 54a provided at a distal end portion of the locking protrusion 54 of the assembly member 50 inserted from the concave groove 8 of the body 10 is locked near both ends in the longitudinal direction. (See FIG. 5D). In the vicinity of the fitting portion 7 on the back side of the cover 20, a guide surface 27 that is inclined inward toward the rear and guides the locking claw 54a to the locked portion 26 is formed.
[0049]
Thus, in order to assemble the body 1 by connecting the body 10 and the cover 20, as shown in FIG. 24A, the locking projection 54 is formed with the body 10 and the cover 20 abutting on the opening side. When the assembling member 50 is pressed toward the longitudinally opposite side surfaces of the body 1 so as to be inserted into the concave grooves 8, as shown in FIG. The fitting portions 6 and 7 of the body 10 and the cover 20 are fitted to each other to connect the body 10 and the cover 20, and at the same time, a locking claw 54 a provided at the tip of the locking protrusion 54 is used to guide the cover 20. The locking protrusion 54 bends rearward (toward the body 10) along the surface 27, and the locking claw 54 a is locked to the locked portion 26 of the cover 20, and thereby the fitting portion 6 of the assembly member 50 is formed. , 7 can be prevented. In order to smoothly bend the locking projection 54 rearward, an inclined surface 10a that is inclined substantially parallel to the guide surface 27 may be provided at a position facing the guide surface 27 of the body 10 as shown in FIG. desirable.
[0050]
Since the body 10 and the cover 20 are joined using the synthetic resin assembly member 50 in this manner, the assembly frame and the charging section (the blade receiving block 30) are connected to each other as in the case of using a metal assembly frame. There is an advantage that the restriction on the design due to the insulation distance is reduced, and the degree of freedom of design such as selection of the material forming the body 1 and the thickness dimension of the body 1 is increased. Further, in the present embodiment, the fitting portion 6 of the body 10 and the fitting portion 7 of the cover 20 are individually fitted into the pair of fitting holes 51 of the assembly member 50, respectively. The body 10 and the cover 20 can be firmly connected by suppressing the play of the assembly member 50 due to the dimensional error of the respective fitting portions 6 and 7 as compared with the case where the fitting portions are fitted into the same fitting holes. it can. Further, the locking member 54 is provided at a position between the fitting holes 51 in the vertical piece 52 of the assembly member 50, so that the size of the assembly member 50 is reduced. As shown in FIG. 25, the locked portion 26 and the guide surface 27 may be provided on the body 10 and the direction of the locking claw 54a provided on the locking protrusion 54 of the assembly member 50 may be reversed.
[0051]
Incidentally, a pair of doors 160, 160, a pair of leaf springs 170, 170, and a middle frame 180 are accommodated inside the cover 20. The middle frame 180 is provided with a pair of through holes 181 and 181 and a groove 182 located between the through holes 181 and 181 as shown in FIG. (Not shown) and can be temporarily fixed to the cover 20. The pair of doors 160, 160 and the pair of leaf springs 170, 170 are disposed between the middle frame 180 and the inner surface of the cover 20.
[0052]
As shown in FIG. 12, a pair of doors 160 having the same shape are provided with wing pieces 161 and 161 projecting to both sides, and each of the wing pieces 161 and 161 has a pair of inclined surfaces 162 having different inclination angles. , 163 are juxtaposed. In the doors 160, 160, a central portion 164 sandwiched between the wing pieces 161, 161 is housed in a groove 182 of the middle frame 180, and leaf springs 170, 170 are arranged between the outer surface side and the inner wall of the cover 20. The doors 160 and 160 are placed in the cover 20 in a state where the doors 160 and 160 are pressed by the leaf springs 170 and 170 so as to be in contact with each other.
[0053]
The cover 20 containing the middle frame 180 and the doors 160, 160 is connected to the body 10 using the assembly member 50. When the body 1 is assembled by connecting the body 10 and the cover 20 with the assembly member 50. The blade receiver 31 of the blade receiving block 30 is located in the through hole 181 of the middle frame 180, and the partition wall 180a of the middle frame 180 engages with the partition wall 12 of the body 10 to separate the two blade receivers 31. ing. The doors 160 are located between the insertion opening 25 of the cover 20 and the blade receiver 31.
[0054]
That is, the wings 161 of one door 160 slightly cover the wings 161 of the other door 160 so that no gap is formed between the two doors 160, and the two doors 160, 160 are leaf springs 170, 170. However, the doors 160, 160 thus closed are located between the insertion slot 25 and the blade receiver 31 to hide the blade receiver 31 located behind the insertion port 25. Will be.
[0055]
In this state, if the plug blade of the plug is inserted into both the insertion ports 25, each blade presses the inclined surface 162 (or 163) of the wing pieces 161, 161 of the door 160, 160, and thereby the door 160 is moved to the leaf spring 170. In order to expand the space between the two doors 160, 160. For this purpose, a blade is inserted into the blade receiver 31. When the plug is removed, the doors 160, 160 return by the urging of the leaf springs 170, 170 to close the insertion port 25 again.
[0056]
In order to construct the outlet constructed as described above on a construction surface such as a wall surface, the plate 100 shown in FIGS. 26 and 27 is used. The plate 100 includes a plate frame 110 that holds the container body 1 and a decorative plate 120 that covers the plate frame 110 and is installed with a good appearance. The synthetic resin plate frame 110 has an insulating property, and the left end portion and the right end portion of the pair of frame pieces 113a and 113b are continuously and integrally connected to each other by the horizontal piece 112, thereby exposing the front surface of the container body 1. It is formed in a vertically long rectangular frame shape having a rectangular opening window 111 at the center. A strip-shaped fixed beam portion 114 and a movable beam portion 115 are provided on the rear surfaces of both side edges along the longitudinal direction of the opening window 111 so as to face each other.
[0057]
The movable beam portion 115 is continuously and integrally connected to the frame piece 113b via a connection portion 116 extending in the longitudinal direction of the movable beam portion 115 at both ends in the longitudinal direction, and two intermediate portions are connected to the movable beam portion 115. It is continuously and integrally connected to the frame 113b via the bridge portion 117 in the direction orthogonal to the frame. The portions between the connecting portions 116 and the bridge portions 117 and between the two bridge portions 117 are slits 118a to 118c penetrating from front to back. The synthetic resin forming the plate frame 110 has flexibility, and the movable beam 115 and the connecting portion 116 are flexible. The slits 118a and 118c on both sides are formed in an L shape, and the slit 118b in the middle is formed on a straight line. In the frame piece 113b, in the vicinity of each bridge portion 117, a long hole-shaped groove 119 penetrating from front to back is provided so that the movable beam portion 115 is also flexible at a portion corresponding to the bridge portion 117.
[0058]
On the other hand, on one surface of the fixed beam portion 114 and the movable beam portion 115 facing the opening window 111, six holding grooves 114a as holding portions which engage with the mounting claws 55 projecting from the assembly member 50 one by one. , 115a (see FIG. 26) are provided at an equal pitch. Therefore, when the mounting claws 55 provided on the mounting member 50 are engaged with the holding grooves 114a and 115a, the body 1 is attached to the plate frame 110 with the front surface of the body 1 exposed from the opening window 111. can do. The base portions of the fixed beam portion 114 and the movable beam portion 115 are formed with contact portions 114d and 115d that contact the front surface of the horizontal piece 53 of the assembly member 50 so that the container body 1 does not fall off from the plate frame 110 forward. ing. That is, the front surface of the horizontal piece 53 of the assembly member 50 abuts on the abutting portions 114d and 115d (see FIG. 28), and the rear surface of the mounting claw 55 is locked in the holding grooves 114a and 115a. It is attached to the frame 110.
[0059]
Here, the mounting claws 55 of the container body 1 are introduced into the holding grooves 114a and 115a from the rear surface side of the plate frame 110 at the respective front end portions of one surface of the fixed beam portion 114 and the movable beam portion 115 facing the opening window 111. In order to guide the mounting claws 55 to the holding grooves 114a and 115a, guide portions 114b and 115b having inclined surfaces that are inclined so as to increase the distance from each other toward the distal end are provided. That is, as shown in FIGS. 28A to 28C, in order to attach the body 1 to the plate frame 110, the mounting claws 55 of the assembly member 50 fitted to one side of the body 1 are attached to the fixing beam 114. When the body 1 is pushed forward with respect to the plate frame 110 with the front end of the body 1 substantially aligned with the opening window 111, the housing 1 is fitted to the other side surface. The mounting claw 55 of the assembly member 50 is driven into the holding groove 115a by the inclined surface 54a and the guide portion 115b while bending the movable beam 115, and the mounting claw 55 can be easily engaged with the holding groove 115a.
[0060]
On the other hand, at the base of the fixed beam portion 114, an instrument removing hole 114c penetrating through the front and back of the plate frame 110 is formed between each pair of adjacent holding grooves 114a. In the attached state, the tip of a driver or a jig dedicated to removal is inserted into the instrument removing hole 114c, and the body 1 is pushed toward the movable beam 115 by the tip of the jig. The movable beam 115 can be deflected by the above, the engagement state between the holding groove 114a on the fixed beam 114 side and the mounting claw 55 of the body 1 can be released, and the body 1 can be removed from the plate frame 110. It has become.
[0061]
By the way, as described above, the plate frame 110 has three pairs of holding grooves 114a and 115a in the fixed beam portion 114 and the movable beam portion 115, respectively. Since the pair of mounting claws 55 are formed, it is possible to mount the above-described container 1 to the plate frame 110 up to three. That is, the plate frame 110 is used for three units, and the unit 1 whose mounting dimensions are set so that a maximum of three plate frames 110 can be mounted on the three plate frames 110 is a unit size (hereinafter, referred to as “one module”). ). In this manner, by defining the relative mounting dimensions of the container 1 and the plate frame 110, it is possible to mount any number of the containers 1 in the range of 1 to 3 to the plate frame 110. Become. The pitch of each of the holding grooves 114a and 115a provided in the fixed beam portion 114 and the movable beam portion 115 is equal to the pitch of the mounting claws 55 protruding from the side surface of the unit body 1 of one module. Since the holding grooves 114a and 115a are at equal intervals, in the case of a single module body 1, the plate frame 110 can be formed using any two holding grooves 114a and 115a adjacent to the fixed beam 114 and the movable beam 115. Can be attached to
[0062]
By the way, a recess 131 is formed on the front surface of the middle part of each horizontal piece 112 of the plate frame 110. Each of the recesses 131 has an elongated box hole 132 for inserting a box screw for attaching the plate frame 110 to the embedding box, and a screw for directly attaching the plate frame 110 to a construction surface such as a wall surface. A screw insertion hole 133 to be inserted and a scissor fitting locking hole 134 for locking a scissor fitting (not shown) used when attaching to a wall panel or the like forming a construction surface are provided.
[0063]
Further, at four corners of the plate frame 110, there are provided decorative plate locking holes 135 for locking the locking projections 123 projecting from the rear surface of the decorative plate 120, and the decorative plate locking holes 135 are provided in the decorative plate locking holes 135. The decorative plate 120 can be detachably attached so as to cover the front surface of the plate frame 110 by inserting and locking the plate.
[0064]
The decorative plate 120 is formed using a synthetic resin having an insulating property, and has a rectangular main portion 121 covering the front surface of the plate frame 110, and a rear portion extending from the periphery of the main portion 121 to the entire periphery. Is formed in a substantially box shape in which a side wall 122 protruding from the front end is continuously and integrally formed. The locking projections 123 project from four corners on the rear surface side of the main portion 121. In addition, an opening window 121 a that exposes the front surface of the container body 1 attached to the plate frame 110 is provided at a central portion of the main portion 121.
[0065]
The distance between the opposing surfaces of the side wall 122 of the decorative plate 120 is larger than the width of the corresponding portion of the plate frame 110. That is, when the decorative plate 120 is attached to the front side of the plate frame 110 disposed on the construction surface, the plate frame 110 fits inside the decorative plate 120, and the leading edge of the side wall 122 of the decorative plate 120 is almost on the construction surface. Abut As a result, the abutting surface of the plate frame 110 and the decorative plate 120 does not protrude forward from the construction surface, and the abutting line of the two is hardly seen from the side surface, and the appearance is improved. A plurality of rows of regulating ribs 124 are provided on the inner side surface of the side wall 122 of the decorative plate 120 to contact the side surface of the plate frame 110 to prevent the decorative plate 120 from being displaced with respect to the plate frame 110.
[0066]
By the way, on the outer surfaces of both frame pieces 113a and 113b of the plate frame 110, there are an inclined surface 113c which is inclined so as to protrude outward toward the rear, and an overhang portion 113d which protrudes outward continuously from the inclined surface 113c. Is formed. Further, ribs 125 whose rear end surfaces are in contact with the front surface of the overhang portion 113d project from the inner side surfaces of the upper and lower side walls 122 of the decorative plate 120, and the rib 125 prevents the decorative plate 120 from rattling. When the decorative plate 120 is mounted on the plate frame 110, the regulating ribs 124 of the decorative plate 120 are guided by the inclined surfaces 113c formed on the frame pieces 113a and 113b of the plate frame 110, so that the mounting is easy.
[0067]
A pair of notches 126 are provided in one of upper and lower side walls 122 of the decorative plate 120, and a jig (such as a tip of a flathead screwdriver) is inserted into the notch 126 so that the decorative plate 120 is separated from the plate frame 110. When a (forward) force is applied, the engagement state between the locking projection 123 of the decorative plate 120 and the decorative plate locking hole 135 of the plate frame 110 is released, and the decorative plate 120 can be removed from the plate frame 110. . At a position corresponding to the notch 126 in the frame piece 113b of the plate frame 110, a relief portion 136 recessed inward from the inclined surface 113c is provided, and a jig inserted into the notch 126 can be released and inserted to the back. This makes it easy to apply force when removing the decorative plate 120. Further, a rib 137 thinner than the overhang portion 113 d extends from the rear end of the escape portion 136 so as not to protrude from the cutout portion 126 of the decorative plate 120. In other words, there is a possibility that the jig inserted into the notch 126 may be damaged by applying force with the portion contacting the construction surface as a fulcrum, but the jig inserted into the notch 126 is provided with the rib 137. When the jig contacts the rib 137 and the decorative plate 120 is removed from the plate frame 110, it is possible to prevent the jig from damaging the construction surface.
[0068]
On the rear side of the decorative plate 120, ridges 128a to 128c that are respectively fitted into three slits 118a to 118c provided in the plate frame 110 when attached to the plate frame 110 are arranged. Here, the dimension of each of the ridges 128a to 128c is set between the inner peripheral surface of each of the slits 118a to 118c and each of the ridges 128a to 128c in a state of being fitted into each of the slits 118a to 118c of the plate frame 110. The dimensions are set so that only a small gap is created. That is, in a state where the decorative plate 120 is attached to the plate frame 110 to which the body 1 is attached, the three protruding strips 128a to 128c are fitted into the respective slits 118a to 118c of the plate frame 110, and among the slits 118a to 118c, Since only a small gap is formed between the peripheral surface and each of the protruding strips 128a to 128c, the movement (bending) of the movable beam 115 of the plate frame 110 is restricted. As a result, even when an impact such as pulling out the plug inserted into the outlet with an unusually large force is applied, the movement of the movable beam 115 is restricted as described above. Therefore, the locking between the movable beam portion 115 and the holding grooves 115a and 114a of the fixed beam portion 114 is not easily released.
[0069]
(Embodiment 2)
In the first embodiment, a single type (so-called universal type) insertion portion 24 to which both a so-called A type plug having a parallel flat type blade and a so-called BS type plug having a parallel pin type blade are connectable is provided. Although this embodiment is provided in the module body 1, this embodiment has the same universal type insertion part 24 as in the first embodiment and a so-called O (Oh) type ground electrode as shown in FIGS. An insertion part 24 ′ to which the attached plug is connected is provided in the body 1 of three modules (that is, the mounting dimensions are three times as large as one module). The O-type insertion portion 24 'has three flat blade insertion holes 25a', 25a ', and 25b' into which three flat blades including a ground electrode are inserted, and the flat plug of the ground electrode is provided. On the both sides of the flat blade insertion port 25b 'into which the blade is inserted, the remaining (voltage electrode) flat blade insertion ports 25a' and 25a 'are arranged in an inverted C shape.
[0070]
As shown in FIG. 32, the inside of the body 10 is divided into three parts by a plurality of partition walls 12 provided along the longitudinal direction. By covering the front surface of the body 10, the internal space of the container 1 is divided into three independent rooms (storage rooms 13a, 13b, 13c). The storage chambers 13a and 13b at both ends are further divided into three chambers along the longitudinal direction of the body 10 by a pair of partition walls 12b having slits 12a.
[0071]
In the body 10, the storage chambers 13a and 13b at both ends accommodate the blade blade blocks 30A and 30B for voltage electrodes, respectively. In the blade block 30A, 30B, a blade receiver 31A corresponding to the universal type insertion part 24 and a blade receiver 31B corresponding to the voltage pole of the O type insertion part 24 'are connected to both sides of the terminal plate 41. It is composed. However, the blade block 30A stored in the one storage room 13a and the blade block 30B stored in the other storage room 13b have a mirror image relationship, so only the blade block 30A will be described.
[0072]
The universal type blade receiver 31A has substantially the same structure as the blade receiver 31 in the first embodiment, and as shown in FIG. 35, a pair of blade receiver springs 32 that sandwich the plug blade at the distal ends facing each other. A U-shaped connecting piece 34 for connecting one side surface of the two-blade receiving spring 32 continuously and integrally, and a blade receiving spring 33 protruding from the connecting piece 34 and facing the side surface of the two-blade receiving spring 32. A substantially hook-shaped leg 35 extends from the base edge of one of the blade receiving springs 32, and a pair of caulking protrusions 36 a is arranged at the distal end of the leg 35. Is provided.
[0073]
As shown in FIG. 36, an O-type blade support 31B for a voltage electrode has a pair of blade support springs 32 that sandwich a plug blade at the end portions facing each other, and one side surface of both blade support springs 32 continuously integrated. , A strip-shaped leg 35 extending from a side edge on the base end side of one of the blade receiving springs 32, and a pair of caulking protrusions 36a are arranged in a row. And a coupling piece 36 provided at the tip of the 35.
[0074]
As shown in FIG. 37, the terminal plate 41 has a substantially T-shaped main piece 42, a pair of contact pieces 43 that hang rearward from both side edges at one narrow end of the main piece 42, and a width of the main piece 42. A pair of substantially J-shaped lock pieces 44 hanging rearward from both side edges at the other end side of the thick, and fixing pieces (joining portions) 45 projecting sideways from the side edges of the both lock pieces 44; Is formed by processing a band-shaped metal plate having elasticity and bending it so that the tip of the contact piece 43 and the tip of the lock piece 44 intersect each other. That is, the terminal plate 41 in the present embodiment has a shape in which the two terminal plates 41 (each terminal plate 41 is in a mirror image relationship) in the first embodiment are connected to each other by the main pieces 42. Is provided with a contact portion 43a and a pair of pressing portions 43b and 43c, and a lock piece 44 is provided with a lock portion 44a and a bent portion 44b. The terminal plate 41 in the present embodiment is also released by the release button 60 by setting the width of the contact piece 43 to be narrower (approximately half) than the width of the lock piece 44 as in the first embodiment. Space is secured. Further, the fixing piece 45 is provided with an insertion hole 45a through which a pair of caulking protrusions 36a arranged in a row on the coupling piece 36 of the blade receivers 31A and 31B is inserted. The insertion hole 45a is inserted through the pair of insertion holes 45a. By caulking the caulking projection 36a, the connecting piece 36 of the blade receiver 31A is fixed to one fixing piece 45, and the connecting piece 36 of the blade receiver 31B is fixed to the other fixing piece 45, and the blade receiving block 30A is fixed. Be composed. As described above, in the present embodiment, the connecting portion that is a component that conducts to the electric wire via the terminal plate 41 and that is a unique component (the blade receivers 31A and 31B in the present embodiment) corresponding to the type of the wiring device. Since the (fixing piece 45) is provided on the terminal plate 41, the terminal plate 41 can be used in common even if the specific component is a component of a wiring device other than the outlet, thereby reducing costs. In addition, the method of connecting the fixing piece 45 and the connecting piece 36 is not limited to the above-described caulking, and can correspond to various connecting methods such as bonding and welding.
[0075]
Thus, the blade receiving blocks 30A and 30B for the voltage electrode configured as described above store the blade receivers 31A and 31B in the longitudinal ends, respectively, as shown in FIG. The body 10 is housed in the housing chambers 13a and 13b at both ends so as to be housed in the center section in the longitudinal direction.
[0076]
On the other hand, an O-type grounding blade block 30C is stored in the central storage chamber 13c in the body 10. The ground electrode plug blade block 30C is configured such that the ground electrode blade receiver 31C corresponding to the O-type insertion portion 24 'is coupled to the terminal plate 41'.
[0077]
As shown in FIG. 38, the blade support 31C for the O-type grounding electrode continuously and integrally integrates a pair of blade reception springs 32 that sandwich the plug blade at the front end portions facing each other and the rear edges of the double blade reception springs 32. A connecting piece 34 to be connected, a band-like leg 35 extending from a side edge of the connecting piece 34 and bent into a substantially hook shape, a caulking projection 36a and a positioning hole 36b are arranged in a row to form the leg 35. And a coupling piece 36 provided at the distal end.
[0078]
The terminal plate 41 ′ has substantially the same shape as the terminal plate 41 for the voltage electrode except for the fixing piece 45, and includes a main piece 42, a pair of contact pieces 43 and a lock piece 44 as shown in FIG. The piece 43 is provided with a contact portion 43a and a pair of pressing portions 43b and 43c, and the lock piece 44 is provided with a lock portion 44a and a bent portion 44b. The main piece 42 has a caulking hole 42a through which a caulking protrusion 36a provided on the coupling piece 36 of the blade receiver 31C is inserted, and a positioning protrusion 42b fitted into the positioning hole 36b. Has been established.
[0079]
Therefore, the positioning protrusion 42b projecting from the main piece 42 of the terminal plate 41 'is fitted into the positioning hole 36b penetrating the coupling piece 36 of the blade receiver 31C, and the terminal plate 41' and the blade receiver 31C are fitted. Of the terminal plate 41 'and the blade 42a of the terminal plate 41' by inserting the caulking protrusion 36a projecting from the coupling piece 36 into the caulking hole 42a penetrating the main piece 42 and caulking. The coupling pieces 36 of the receiver 31C are connected to form the blade receiving block 30C.
[0080]
Thus, the blade receiving block 30C for the ground electrode configured as described above is housed in the storage chamber 13c in the center of the body 10 with the blade receiver 31C on the lower side in the figure as shown in FIG. Here, as shown in FIG. 40 (b), in a structure in which two holes 42b for caulking and positioning are arranged in the main piece 42 of the terminal plate 41, the interval between the concave portions for processing for providing the holes 42b. Is very narrow, and the strength of the main piece 42 may be reduced. In order to secure the strength, the size of the main piece 42 must be increased. On the other hand, in the present embodiment, the caulking protrusion 36a and the positioning hole 36b are provided on the coupling piece 36 of the blade receiver 31C, and the caulking hole 42a and the positioning protrusion 42b are provided on the main piece 42 of the terminal plate 41. Therefore, the space between the caulking hole 42a and the positioning protrusion 42b is widened, and the strength can be prevented from decreasing without increasing the size of the main piece 42 (see FIG. 40A).
[0081]
In the present embodiment, the terminal plate 41 and the blade receivers 31A and 31B formed separately are combined to form the blade receiver blocks 30A and 30B. However, as shown in FIG. If the terminal plate 41 is integrally formed by processing a metal member, there is an advantage that a joining operation such as caulking is not required. Here, as a structure of the blade receivers 31A and 31B, for example, as shown in FIG. 41, a pair of blade receiving springs 32 has a rear end edge, that is, a connecting piece 34 opposed to the tip of the blade in the direction of insertion of the blade. 42 (b) and (c), a structure in which the pair of blade receiving springs 32 are connected so that their side edges, that is, the connecting pieces 34 are along the insertion direction of the blade. However, the former structure is more excellent in the resilience of the blade receiving spring 32 than the latter structure, and the latter structure is more excellent in the so-called stripping when punching from a metal member than the former structure. Therefore, any one of the structures may be appropriately selected and combined in view of required performance. In addition, as shown in FIG. 42A, in the former structure, the blade receiving spring 33 of the universal type blade receiver 31A may be connected to the side edge of one blade receiving spring 32.
[0082]
As shown in FIG. 32, a pair of electric wire insertion holes 11 communicating with the three storage chambers 13 a, 13 b, and 13 c are respectively provided through substantially the center of the bottom wall of the body 10 in the longitudinal direction. When the electric wire is inserted between the contact piece 43 and the lock piece 44 through the lock piece, the lock portion 44a of the lock piece 44 bites into the electric wire and is prevented from coming off as described in the first embodiment. The electric wire resiliently contacts the contact portion 43a of the contact piece 43 by the spring force, and the electric wire is further pressed toward the locking piece 44 by the pair of pressing portions 43b and 43c, thereby forming the locking portion 44a and the pair of pressing portions 43b and 43c. The pressing force is balanced and the wire is held.
[0083]
Here, in the terminal plates 41 and 41 ′, a pair of contact pieces 43 and a locking piece 44 are provided at both ends of the main piece 42, and correspondingly, the pair of electric wire insertion holes 11 are also provided. They are provided at a predetermined distance from each other. Therefore, when two electric wires are connected to each terminal plate 41, 41 'for feed wiring, two electric wires can be surely connected one by one because two adjacent wire insertion holes 11 are separated. It is. On the other hand, as shown in FIG. 43, two contact pieces 43 are arranged close to the center of the terminal plates 41, 41 ', and two electric wires corresponding to the two contact pieces 43 as shown in FIG. If the insertion holes 11 are partially communicated with each other and provided in the body 10, there is an advantage that two electric wires can be simultaneously inserted into the respective electric wire insertion holes 11 and simultaneously connected to the terminal plates 41 and 41 ′. There is.
[0084]
By the way, in the present embodiment, the release button 80 forming the terminal portion 40 for the voltage electrode together with the terminal plate 41 and the release button 200 forming the terminal portion 40 for the ground electrode together with the terminal plate 41 ′ have different shapes. Is formed. However, as described later, the release buttons 80 or 200 arranged adjacently have a mirror image relationship, and only one of the shapes will be described below.
[0085]
The release button 80 for the voltage electrode is made of a synthetic resin molded product, and has a prismatic operation portion 81 as shown in FIG. A drive section 82 protruding in the short direction and an arm section 83 protruding in the same direction as the drive section 82 from the vicinity of the other end of the operation section 81 are integrally formed. The arm portion 83 is formed to have a width smaller than the width of the operation portion 81, and a pushing protrusion 84 protruding toward the driving portion 82 is integrally formed at the tip of the arm 83. The driving portion 82 has a larger protrusion amount from the operation portion 81 than the arm portion 83, and a concave portion 82 a that opens downward and on one side is formed on an inner surface facing the arm portion 83. I have. On the bottom surface of the concave portion 82a facing the arm portion 83, an inclined surface 82b is formed, which is inclined from the tip toward the operation portion 81 in a direction gradually moving away from the arm portion 83. Note that a positioning portion 85 protruding from the outer surface of the tip portion of the driving portion 82 on the opposite side to the arm portion 83 is provided in a protruding manner.
[0086]
On the other hand, a pair of vertical grooves 15 communicating with the storage chambers 13a and 13b is provided on both side surfaces in the lateral direction of the body 10 in parallel with each other. A button 80 is provided in each of the storage chambers 13a and 13b in the body 10 so as to face the terminal plate 41 (see FIG. 34). Here, the release button 80 faces the portion where the arm 83 does not face the contact piece 43 in the lock piece 44 of the terminal plate 41, and the wire insertion hole 11 of the body 10 faces the recess 82 a of the drive unit 82. The operation unit 81 is movably disposed in the storage chambers 13a and 13b so as to protrude from the vertical groove 15 so as to be able to advance and retreat. As described above, since the width of the contact piece 43 is smaller than the width of the lock piece 44, the facing area between the arm 83 and the lock piece 44 can be increased. I have. Further, return springs 90 for elastically urging the operation portion 81 in a direction protruding from the vertical groove 15 to return the release button 80 to a position when the electric wire is not connected (disconnection position) are provided in the respective storage chambers 13a and 13b. It is stored in.
[0087]
As shown in FIG. 46, the return spring 90 has a pair of spring pieces 91 whose front ends are bent substantially at right angles and whose rear ends are bent in a substantially elliptical shape. A fixed portion 92 protruding to the side and a connecting piece 92 for connecting the spring piece 91 at a side edge of a rear end portion are integrally formed. The fixing portion 92 has a distal end portion curved in a substantially U shape, and sandwiches the fixed portion 46 formed of a cutout provided in a portion near the main piece 42 in the locking piece 44 of the terminal plate 41 as shown in FIG. 47. The return spring 90 is fixed (temporarily fixed) to the terminal plate 41. When the blade receiving blocks 30A, 30B in which the return spring 90 is temporarily fixed to the terminal plate 41 are stored in the storage chambers 13a, 13b, the terminal plate 41 contacts the inner wall of the body 10 and the rear end of the spring piece 91 is narrowed. The return spring 90 is permanently fixed to the terminal plate 41 (see FIG. 34). Further, if the release button 80 is disposed in the storage chambers 13a and 13b, the distal end of the spring piece 91 of the return spring 90 abuts the distal end of the drive section 82 of the release button 80, and the spring force of the spring piece 91 causes The release button 80 is elastically urged in a direction to return to the non-connection position (the position where the operation unit 81 projects from the vertical groove 15 of the body 10). The release button 80 is prevented from falling out of the body 1 by bringing the positioning portion 85 provided in the driving portion 82 into contact with the inner wall surface of the cover 20. Here, the terminal plate 41 is provided with a fixed portion 46 ′ formed of a rectangular through hole and paired with the fixed portion 46, and as shown in FIG. 48, a return spring 90 having only one spring piece 91. Is used, the fixed portions 92 of the return spring 90 'are sandwiched between the fixed portions 46 and 46', which are a pair, so that the return springs 90 and 91 'are temporarily fixed. 90 and a return spring 90 ′ having only one spring piece 91 can be attached to the same terminal plate 41, so that the cost can be reduced due to the common use of components, and the width of the wiring device can be increased. .
[0088]
When the electric wire is inserted between the contact piece 43 of the terminal plate 41 and the locking piece 44 through the electric wire insertion hole 11 and the electric wire is connected to the terminal portion 40 (the terminal plate 41), the end of the electric wire is released. The drive unit 82 comes into contact with the inclined surface 82b formed in the concave portion 82a of the drive unit 82, and the drive force of the drive unit 82 approaches the cover 20 and the operation unit 81 moves by the insertion force of the wire (the force acting in the wire insertion direction). The release button 80 is pressed and driven so as to enter the inside of the button 1. As a result, in a state where the electric wire is connected to the terminal unit 40, a part of the operation unit 81 moves to a position (connection position) where the operation unit 81 is pulled into the inside of the body 1. That is, whether the operation unit 81 of the release button 80 is movable between the non-connection position and the connection position, and whether the electric wire is connected to the terminal plate 41 depending on the position of the operation unit 81 (the non-connection position or the connection position). It is possible to confirm whether or not.
[0089]
Projections 16 projecting in the lateral direction of the body 10 are provided at portions near the rear end of the vertical groove 15 on both lateral sides of the body 10 to form a step with the side surface of the body 10. Have been. That is, at the connection position, the operation portion 81 of the release button 80 slightly protrudes from the side surface of the body 1 (the body 10), but the protrusion 16 is provided to form a step between the operation portion 81 and the side surface of the body 10. As a result, when viewed from the bottom side of the body 1 (body 10) in which the wire insertion hole 11 is open, the operating portion 81 of the release button 80 at the non-connection position appears to protrude outside the protrusion 16. On the other hand, the operation portion 81 of the release button 80 at the connection position is hidden behind the protrusion 16 and becomes invisible, and the connection state of the electric wire is easily determined by the visual permission of the release button 80 when viewed from the bottom of the body 1. It becomes possible to determine. Further, if the operation portion 81 of the release button 80 is colored in a color different from that of the body 10, there is an advantage that the position of the release button 80 is easily recognized.
[0090]
On the other hand, in order to pull out the electric wire connected to the terminal part 40, the operation part 81 exposed on the side surface of the body 1 through the vertical groove 15 is pushed with a finger, and the operation part 81 is further released from the connection position to the inside of the body 1. When the button 80 is moved, the distal end of the locking portion 44a of the terminal plate 41 is pressed by the pushing protrusion 84 projecting from the distal end of the arm 83 of the release button 80, so that the lock biting into the electric wire is pressed. The locking piece 44 is bent so that the portion 44 is separated from the electric wire, so that the electric wire can be pulled out. If the pushing operation of the operation unit 81 is stopped after the electric wire is pulled out, the release button 80 is moved by the spring force of the return spring 90, and the operation unit 81 automatically returns to the non-connection position. In the present embodiment, since the operation unit 81 is provided at one end of the release button 80 provided with the push projection 84, the operation position (operation unit 81) of the release button 80 and the arm 83 The operation amount of the release button 80 is improved by reducing the amount of operation required to press the lock portion 44a as the distance becomes shorter and the operability of the release button 80 is improved.
[0091]
By the way, in the present embodiment, when the release button 80 is incorporated in the storage chambers 13a and 13b of the body 10, a pushing projection 84 is provided between the base ends of the two contact pieces 43 in the terminal plate 41 as shown in FIG. It is temporarily fixed to the terminal plate 41 by engaging with the engaging portion 48 provided. At this time, the locking portion 44a of the locking piece 44 facing the engaging portion 48 comes into contact with the pushing protrusion 84, and the pressing protrusion 84 is held between the fluorescent portion 48 and the locking portion 44a to release the release button. 80 is temporarily fixed. That is, since the release button 80 is urged by the return spring 90 attached to the terminal plate 41, if not temporarily fixed, the posture is not stabilized, and the assembling workability is reduced. By stopping the operation, the workability of assembling the release button 80 can be improved. A guide surface 84a is formed on a surface of the distal end portion of the push projection 84 facing the operation unit 81, the guide surface 84a being inclined toward the distal end in a direction away from the operation unit 81 (see FIG. 45). When the engaging portion 48 is engaged with the engaging portion 48, the guide surface 84a and the engaging portion 48 are in sliding contact with each other, and the pushing protrusion 84 is guided toward the lock portion 44a. It is. When the terminal plate 41 is pushed in a direction approaching the drive unit 82 of the release button 80 (upward in FIG. 49B) after the release button 80 is incorporated in the body 10, the engagement portion 48 slides on the guide surface 84a. While moving in the anti-engagement direction, the engagement with the pushing protrusion 84 is released, and the temporary stop state of the release button 80 with respect to the terminal plate 41 is released.
[0092]
On the other hand, the release button 200 for the ground electrode is also made of a synthetic resin molded product, and as shown in FIG. 50, a substantially rectangular operation unit 201, and a drive unit 202 protruding laterally from one end on one side surface of the operation unit 201, An arm 203 projecting laterally from the other end of the side surface, and a pushing protrusion 204 projecting from the tip of the arm 203 toward the drive unit 202 are integrally formed. The arm 203 has a width smaller than the width of the operation unit 201 (see FIG. 50B). Further, the driving unit 202 has a larger protrusion amount from the operation unit 201 than the arm unit 203, and the inner surface (the lower surface in FIG. 50A) facing the arm unit 203 has a lower side and one side. A recess 202a is formed to be open to the outside. On the bottom surface of the concave portion 202a facing the arm portion 203, an inclined surface 202b that is inclined from the tip toward the operation portion 201 in a direction gradually moving away from the arm portion 203 is formed. In addition, the surface 202c of the drive unit 202 with which the end of the spring piece 91 of the return spring 90 abuts is recessed in the biasing direction of the return spring 90. Further, a relief portion 205 for releasing the blade receiver 31C of the blade receiver block 30C when stored in the storage chamber 13c is provided on an outer surface of one end of the operation unit 201 from which the drive unit 202 protrudes. At the same time, it is possible to prevent the interference between the release button 200 and the blade receiver 31C while minimizing the body 1 (see FIG. 34).
[0093]
By the way, as shown in FIG. 32, on the bottom surface of the body 10, a projecting portion 2 protruding rearward is provided at a portion where the wire insertion holes 11 are provided at the center of both ends in the longitudinal direction. That is, an abutment portion 3 is provided almost at the center of the bottom surface of the body 10 so as to protrude slightly rearward from the abutment portion 2, and penetrates the storage room 13 c in the body 10 through the central abutment portion 3. An electric wire insertion hole 11 is provided. The protruding portions 2 at both ends are formed integrally with protruding portions 16 protruding from the center of both lateral sides of the body 10. A recess 4 is formed in the center of the bottom surface of the body 10 and surrounded by the protruding portions 2 and 3. A pair of insertion grooves 5 communicating with the storage chamber 13c is formed over the bottom surface. Then, the release button 200 is disposed in the storage chamber 13c of the body 10 so as to face the terminal plate 41 'so that the operation portion 201 is inserted into these insertion grooves 5, and the release button 200 is attached to the terminal plate 41'. The operating portion 201 is elastically urged by the spring 90 in a direction to protrude from the insertion groove 5 and is stored in the storage chamber 13c. (See FIG. 51). In order to prevent the release button 200 from falling down in a direction in which the drive unit 202 separates from the terminal plate 41 'when the release button 200 is incorporated into the body 10, as shown in FIG. Is provided with a rib 17 which is a means for preventing the release button 200 from contacting and supporting the release button 200, thereby preventing the release button 200 from falling and improving the assembling workability.
[0094]
Thus, when the electric wire is inserted between the contact piece 43 of the terminal plate 41 ′ and the locking piece 44 through the electric wire insertion hole 11 and the electric wire is connected to the terminal plate 41 ′, the end of the electric wire becomes The release button 200 is pressed against the inclined surface 202b formed in the recess 202a of the base 202 so that the driving unit 202 approaches the cover 20 and the operation unit 201 enters the body 1 by the insertion force of the electric wire. Driven. As a result, in a state where the electric wire is connected to the terminal plate 41 ', a part of the operation unit 201 moves to a position (connection position) where the operation unit 201 is drawn into the body 1 (see FIG. 51B). . That is, the operation unit 201 of the release button 200 is movable between the non-connection position and the connection position, and the electric wire is connected to the terminal plate 41 ′ depending on the position (the non-connection position or the connection position) of the operation unit 201. Can be checked. In addition, since the release button 200 is movable in two directions, that is, the front-rear direction and the longitudinal direction, the visibility is improved as compared with the case where the release button 200 moves in only one direction. If the operation unit 201 of the release button 200 is colored in a color different from that of the body 10, the position of the release button 200 is easily recognized.
[0095]
On the other hand, in order to pull out the electric wire connected to the terminal plate 41 ', the operation part 201 exposed in the recess 4 on the bottom surface of the body 1 through the insertion groove 5 is pushed with a finger, and the body is further moved from the connection position. 1 When the release button 200 is moved inside, the distal end of the locking portion 44a of the terminal plate 41 'is pressed by the pushing projection 204 projecting from the distal end of the arm 203 of the release button 200, so that The lock piece 44 is bent so as to separate the biting lock portion 44a from the electric wire, and the electric wire can be pulled out. If the pushing operation of the operation unit 201 is stopped after the electric wire is pulled out, the release button 200 is moved by the spring force of the return spring 90, and the operation unit 201 automatically returns to the non-connection position. In addition, a space for operating the operation unit 201 can be secured by the recess 4, and as a result, the amount by which the ground electrode terminal portion 40 protrudes from the bottom surface of the body 1, that is, the protruding portion 3 from the bottom surface of the body 1. The size of the container 1 can be reduced by suppressing the amount of protrusion. In the present embodiment, the peripheral surfaces of the recesses 4 (side surfaces of the abutment portions 2 and 3 facing the recesses 4) are inclined surfaces 2a and 3a inclined toward the recesses 4 toward the bottom surface of the recesses 4, The opening area of the recess 4 is widened so that a finger can be easily inserted, and the operability of the release button 200 is improved.
[0096]
As described above, the universal type insertion portion 24 and the O type insertion portion 24 'are formed on the front wall of the cover 20. Then, the body 10 and the cover 20 are joined by fitting the assembling member 210 into and out of the fitting portions 6 and 7 provided on both the body 10 and the cover 20, thereby assembling the body 1.
[0097]
As shown in FIG. 32, rectangular fitting portions 6 protrude from both sides of a central portion provided with a pair of vertical grooves 15 on both side surfaces of the body 10 facing each other in the lateral direction. A concave groove 8 is formed in front of the fitting part 6 (left side in FIG. 32B). On the other hand, as shown in FIG. 33, a pair of insertion grooves 21 communicating with the vertical grooves 15 of the body 10 are provided at the center in the longitudinal direction on both side surfaces in the short direction of the cover 20 and both sides sandwiching the insertion grooves 21. A fitting portion 7 having the same shape and the same size as the fitting portion 6 of the body 10 is provided in a protruding manner. When the cover 20 is in contact with the opening surface of the body 10, the respective fitting portions 6 and 7 are arranged in a line with the concave groove 8 interposed therebetween.
[0098]
The assembly member 210 is formed of a synthetic resin molded product having elasticity. As shown in FIGS. 29 and 30, a pair of fitting holes 211 respectively fitted with the fitting portions 6 and 7 are provided in the front-rear direction of the body 1 (FIG. 29). A pair of strip-shaped connecting pieces 212 arranged side by side in a vertical direction (in the vertical direction in FIG. 3), and a strip-shaped horizontal piece 213 whose ends are respectively connected to the ends of both connecting pieces 212, A locking projection 214 having a locking claw 214a at the tip is protruded rearward from a substantially central portion sandwiched between the fitting holes 211 on the back side of the coupling piece 212 opposed to 1. Each fitting piece 211 is provided with a mounting claw 215 that engages with the mounting hole of the mounting frame or plate, and protrudes outward so as to be aligned with the fitting hole 211.
[0099]
On the other hand, on the cover 20, a locked portion 26 to which a locking claw 214 a provided at the tip of the locking protrusion 214 of the assembly member 210 inserted from the concave groove 8 of the body 10 is locked in the short direction. (See FIG. 33). A guide surface 27 is formed in the vicinity of the fitting portion 7 inside the both side walls of the cover 20 so as to incline backward toward the inside and guide the locking claw 214a to the locked portion 26.
[0100]
Thus, in order to assemble the body 1 by connecting the body 10 and the cover 20, the locking projection 214 is inserted into the concave groove 8 with the body 10 and the cover 20 abutting on the opening surface side. When the assembly member 210 is pressed toward the lateral sides of the body 1, the fitting portions 6 and 7 of the body 10 and the cover 20 are fitted into the fitting holes 211 of the assembly member 210, respectively. And at the same time the cover 20 is coupled, the locking protrusion 214 is bent rearward (toward the body 10) so that the locking claw 214 a provided at the tip of the locking protrusion 214 follows the guide surface 27 of the cover 20. Eventually, the locking claw 214a is locked to the locked portion 26 of the cover 20, so that the assembly member 210 can be prevented from dropping out of the fitting portions 6, 7. The central portion of the horizontal piece 213 is bent to escape the release button 80 exposed on the side surface of the container 1.
[0101]
By the way, inside the cover 20, a first door 240 for closing the universal type insertion portion 24 so as to be able to open and close, a second door 250 for closing the O type insertion portion 24 'so as to be able to open and close, and a body. 10 and a middle frame 260 that is disposed between the front wall of the cover 20 and slidably supports the first and second doors 240 and 250 so as to be housed inside the cover 20. . That is, the first and second doors 240 and 250 are pushed by the tips of the blades inserted into the insertion portions 24 and 24 ′, and slide while the first and second doors 240 and 250 are supported by the middle frame 260, so that the insertion portion 24 , 24 ′, and the blade can be connected to the blade receivers 31 A, 31 B through the blade insertion hole 261 or the like provided through the middle frame 260. Further, when the blade is pulled out from the insertion portions 24, 24 ', the first and second doors 240, 250 slide by the return spring 254 formed of a coil spring, and the original positions, that is, the insertion portions 24, 24'. Is returned to the closed position, and foreign substances other than the plug blade of the plug can be prevented from being inserted into the insertion portions 24, 24 '.
[0102]
Further, in the present embodiment, similarly to the first embodiment, the plate 100 is embedded and disposed on a construction surface such as a wall surface. At this time, the direction in which the protrusion 3 on the back of the body 1 is positioned vertically above the recess 4, that is, the direction in which the universal type insertion portion 24 is positioned on the O type insertion portion 24 ′. When embedded in the recess 4, the vertically upper portion of the recess 4 is blocked by the protrusion 3 (terminal portion), so that accumulation of dust and the like in the recess 4 can be suppressed. At the construction site, the electric wire may be connected with the body 1 attached to the plate frame 110. In this case, the operation part 81 of the release button 80 protruding from the body 1 interferes with the plate frame 110. If the wire cannot be moved to the regular non-connection position, the connection work of the electric wires may be difficult. Therefore, in the present embodiment, the plate frame 110 is made to escape by inclining the back surface (the surface exposed from the vertical groove 15 to the outside of the body 1) of the drive unit 82 of the release button 80 (see FIG. 52).
[0103]
By the way, since the release button 80 for the voltage electrode protrudes out of the body 1 at the non-connection position, there is a possibility that dust may enter from a clearance between the release button 80 and the body 1 until the release button 80 is actually installed. There is. Therefore, a disk-shaped head 282 having a diameter larger than that of the shaft 281 is provided at the rear end of the cylindrical shaft 281 as shown in FIG. If the pin 280 is inserted into the wire insertion hole 11 and the release button 80 is fixed at the connection position, the clearance between the release button 80 and the body 1 is narrowed, so that the entry of dust can be suppressed (see FIG. 53 (b)). ). Then, at the time of actual construction, the fixing pin 280 may be pulled out and the electric wire may be connected.
[0104]
(Embodiment 3)
In the second embodiment, the universal-type insertion portion 24 and the O-type insertion portion 24 'with a ground electrode are provided in the three-module body 1. In this embodiment, FIGS. As shown in the figure, the socket 1 having three O-type ground electrodes is provided in the module body 1 with three modules.
[0105]
As shown in FIG. 57, the interior of the body 10 is divided into three spaces by the partition wall 12, and the front of the body 10 is covered by the middle frame 260 ′ housed in the cover 20 so that the body 1 is The internal space is divided into three independent storage rooms 13a, 13b, 13c. The storage chambers 13a and 13b at both ends are further divided into three chambers along the longitudinal direction of the body 10 by a pair of partition walls 12b having slits 12a.
[0106]
Blade receiving blocks 30A and 30B for voltage poles are stored in the storage chambers 13a and 13b at both ends in the body 10, respectively. Each of the blade receiving blocks 30A and 30B is configured such that an O-type blade receiver 31B is fixed to a fixing piece 45 of the terminal plate 41, respectively, and the blade receivers 31B are housed in sections at both ends in the longitudinal direction, respectively. The body 10 is housed in the housing chambers 13a and 13b at both ends so as to be housed in the center section in the longitudinal direction.
[0107]
On the other hand, the blade receiving block 30C for the ground electrode is stored in the central storage chamber 13c in the body 10. In this blade receiving block 30C, two O type blade receivers 31B are connected by leg pieces 35, and are fixed to the terminal plate 41 'by connecting pieces 36 provided on the leg pieces 35. That is, the positioning protrusion 42b protruding from the main piece 42 of the terminal plate 41 'is fitted into the positioning hole 36b penetrating the coupling piece 36 to position the terminal plate 41' and the blade receiver 31C. By connecting the caulking protrusion 36a projecting from the connecting piece 36 to the caulking hole 42a penetrating the main piece 42 and caulking, the main piece 42 of the terminal plate 41 'and the blade receiver 31C are connected. The blades 36 are combined to form the blade receiving block 30C.
[0108]
If the blade receiver 31B and the terminal plate 41 are integrally formed by processing a metal member as shown in FIG. 59 (a), there is an advantage that a joining operation such as caulking is not required. Here, as a structure of the blade receiver 31B, for example, as shown in FIG. 59 (a), a pair of blade receiver springs 32 is connected to the rear edge thereof, that is, the connecting piece 34 is opposed to the tip of the blade in the blade insertion direction. Or a structure in which the pair of blade receiving springs 32 are connected so that the side edges thereof, that is, the connecting pieces 34 are along the insertion direction of the plug blade as shown in FIG. 59 (b). However, the former structure is superior in the resilience of the blade receiving spring 32 as compared to the latter structure, and the latter structure is superior in so-called stripping when punching from a metal member as compared to the former structure. Any one of the structures may be appropriately selected and combined in view of required performance.
[0109]
The release buttons 80 and 200 are stored in the storage chambers 13a to 13c together with the terminal plates 41 and 41 'to form the terminal section 40. The configuration of the terminal section 40 is the same as that of the second embodiment, and will be described. Omitted.
[0110]
The assembly member 220 in this embodiment is made of a synthetic resin molded article having elasticity. As shown in FIG. 60, a pair of fitting holes 221 fitted with the fitting portions 6 and 7 are formed in the front-rear direction of the body 1 (FIG. The locking protrusion 224 has a locking claw 224a at the tip from a substantially central portion sandwiched between the fitting holes 221 on the rear side facing the body 1 from the vertical direction. Are protruded rearward, and the mounting claws 225 that engage with the engaging holes of the mounting frame and the plate are projected outward so as to be aligned with the fitting holes 221.
[0111]
Then, with the body 10 and the cover 20 abutting each other on the opening side, the assembly member 220 is pressed toward both lateral sides of the body 1 so that the locking projections 214 are inserted into the concave grooves 8. For example, the fitting portions 6 and 7 of the body 10 and the cover 20 are fitted into the fitting holes 221 of the assembly member 220, respectively, so that the body 10 and the cover 20 are coupled. The locking projection 224 flexes rearward (toward the body 10) so that the locking claw 224 a provided along the guide surface 27 of the cover 20, and the locking claw 224 a is locked to the locked portion 26 of the cover 20. By doing so, it is possible to prevent the assembly member 220 from falling off from the fitting portions 6 and 7.
[0112]
Further, inside the cover 20, two doors 250 for closing the O-type insertion portion 24 'so as to be openable and closable are provided between the front surface of the body 10 and the front wall of the cover 20. And a middle frame 260 'which is slidably supported so as to be housed inside. That is, the insertion part 24 ′ is opened by being pushed by the tip of the blade inserted into the insertion part 24 ′ and sliding while the door 250 is supported by the middle frame 260 ′, and the insertion part 24 ′ is opened. The blade can be connected to the blade receiver 31B through the blade insertion hole 261 'penetrating therethrough. When the blade is pulled out from the insertion portion 24 ', the door 250 slides and returns to the original position, that is, the position where the insertion portion 24' is closed, by the return spring 254 composed of a coil spring. Foreign matter can be prevented from being inserted into the insertion portion 24 '.
[0113]
As shown in FIG. 61, if the width of the end of the assembly member 220 on the side where the mounting claws 225 are provided is made smaller than the width of the other parts, the assembly member 220 with respect to the body 10 and the cover 20 can be formed. There is an advantage that the fitting direction is easy to understand and the workability is improved.
[0114]
(Embodiment 4)
In the third embodiment, two O-type plug-in portions 24 'with a ground electrode are provided in the three-module body 1. However, in the third embodiment, as shown in FIGS. In this case, only one insertion portion 24 ′ with a ground electrode is provided in the body 1 of two modules.
[0115]
As shown in FIG. 65, the inside of the body 10 is divided into three parts by the partition wall 12, and the front of the body 10 is The internal space is divided into three independent storage chambers 13a, 13b, 13c, and the storage chambers 13a, 13b at both ends are further separated by a pair of partition walls 12b having slits 12a along the longitudinal direction of the body 10. Is divided into rooms.
[0116]
Blade receiving blocks 30A and 30B for voltage poles are stored in the storage chambers 13a and 13b at both ends in the body 10, respectively. The blade receiving blocks 30A and 30B are configured such that an O-type blade receiver 31B is fixed to one fixing piece 45 of the terminal plate 41, and each of the blade receivers 31B is housed in a section at both ends in the longitudinal direction, and the terminal plate 41 is mounted. The body 10 is housed in the housing chambers 13a and 13b at both ends so as to be housed in the center section in the longitudinal direction.
[0117]
On the other hand, the blade receiving block 30C for the ground electrode is stored in the central storage chamber 13c in the body 10. However, the blade receiving block 30C has the same configuration as the blade receiving block 30C in the second embodiment. If the blade receiver 31B and the terminal plate 41 are integrally formed by processing a metal member as shown in FIG. 67 (a), there is an advantage that a joining operation such as caulking becomes unnecessary. Here, as a structure of the blade receiver 31B, for example, as shown in FIG. 67 (a), a pair of blade receiver springs 32 has a connecting piece 34 opposed to the rear edge thereof, that is, the tip of the blade in the direction of insertion of the blade. And a structure in which the pair of blade receiving springs 32 are connected so that the side edges thereof, that is, the connecting pieces 34 are along the insertion direction of the plug blade as shown in FIG. 67 (b). However, the former structure is superior in the resilience of the blade receiving spring 32 as compared to the latter structure, and the latter structure is superior in so-called stripping when punching from a metal member as compared to the former structure. Any one of the structures may be appropriately selected and combined in view of required performance.
[0118]
The release buttons 80 and 200 are stored in the storage chambers 13a to 13c together with the terminal plates 41 and 41 'to form the terminal section 40. The configuration of the terminal section 40 is the same as that of the second embodiment, and will be described. Omitted.
[0119]
Here, the same assembly member 220 as in the third embodiment can be used as the assembly member 220 in the present embodiment. That is, the assembling member 220 is configured such that the mounting claws 225 engaging with the mounting holes of the mounting frame and the plate are projected outward so as to be aligned with the fitting holes 221. By providing the fitting portions 6, 7 and the concave groove 8 at positions corresponding to the holding grooves 114a, 115a of the plate frame 110 on both side surfaces in the lateral direction of the plate, the three-module body 1 and the two-module body 1 Thus, the assembly member 220 can be shared, and the cost can be reduced by reducing the number of component types as compared with the case where a dedicated assembly member is used for each.
[0120]
Further, inside the cover 20, a door 250 for closing the O-type insertion portion 24 ′ so as to be openable and closable is provided between the front surface of the body 10 and the front wall of the cover 20. And the middle frame 260 "that is slidably supported so as to be stored in the center frame 260. That is, the door 250 is supported by the middle frame 260" by being pushed by the tip of the blade inserted into the insertion portion 24 '. By sliding in this state, the insertion portion 24 'is opened, and the blade can be connected to the blade receiver 31B through the blade insertion hole 261 "penetrating through the middle frame 260". When the blade is pulled out of the insertion portion 24 ', the door 250 is slid by the return spring 254 to return to the original position, that is, the position for closing the insertion portion 24', and foreign matter other than the plug blade of the plug is inserted. It can be prevented from being inserted into the insertion portion 24 '.
[0121]
By the way, in the terminal portion 40 of the first to fourth embodiments, for example, when the release button 60 is operated, the pressing force applied from the pressing protrusion 64 to the lock piece 44 of the terminal plate 41 is biased to one side in the width direction of the lock piece 44. Therefore, the locking piece 44 bends while being distorted in the pressing direction, and an additional pressing force is required to separate the locking portion 44a from the electric wire. Therefore, as shown in FIG. 68 (a), the contact piece 43 is provided at a position opposed to substantially the center in the width direction of the lock piece 44, and as shown in FIG. Two arms 63 having projecting projections 64 projecting from the distal end thereof are projected substantially in parallel, and each arm 63 is arranged in a space formed on both sides of the contact piece 43 to form two pushing projections 64. , The two ends of the lock piece 44 may be pressed simultaneously. By adopting such a configuration, the pressing force can be applied to the lock piece 44 in a well-balanced manner, so that the distortion of the lock piece 44 is suppressed as compared with the case where one side is pressed, and the operability of the release button 60 is improved. Is improved.
[0122]
【The invention's effect】
According to the first aspect of the present invention, there is provided a terminal board which comes into contact with an electric wire introduced into a body through an electric wire insertion hole penetrating the body of a wiring device, connection means for connecting the electric wire and the terminal plate, and a connection state by the connection means Release means for releasing the connection means, wherein the connection means comprises a pressing portion which protrudes toward the terminal plate and presses the electric wire inserted between the terminal plate and the terminal plate, and the distal end bites into a part of the electric wire to prevent the insertion. A locking portion for preventing the electric wire from coming off in the direction, and wherein the releasing means has a pushing protrusion for pushing the tip of the locking portion and pulling it away from the electric wire when operated. When the part is separated from the electric wire, a pressing force is applied to the tip of the lock part from the pushing protrusion, so that the lock part can be prevented from being deformed when the connection state of the electric wire is released.
[0123]
According to a second aspect of the present invention, in the first aspect of the present invention, the releasing means has an operating portion exposed on the surface of the container and manually operated and the pushing protrusion, and the electric wire is connected to the terminal plate by the connecting means. A release button movably disposed on the body between a connection position in the connected connection state and a non-connection position in the non-connection state where the electric wire is not connected to the terminal plate, and a release button. A biasing member for elastically biasing from the connection position to the non-connection position, wherein the release button moves from the non-connection position to the connection position when the electric wire is connected to the terminal plate by the connection means, It is possible to confirm whether or not the electric wire is connected to the terminal plate by the position of the button, and when the electric wire is removed, the release button elastically urged by the urging member returns from the connection position to the non-connection position. It takes time to return the release button to the non-connection position. It can be inserted and removed any number of times wire does.
[0124]
The invention according to claim 3 is characterized in that, in the invention according to claim 2, the release button is provided with a pushing projection on one end side, and the other end side is supported and swingably disposed on the body. Since the swing range of the release button can be made large, operability and visibility are improved.
[0125]
According to a fourth aspect of the present invention, in the second or third aspect of the present invention, a portion of the release button contacting the biasing member is recessed in a biasing direction by the biasing member, and the moving amount of the release button is the same. Even in this case, the amount of displacement of the urging member can be reduced, and sag of the urging member can be reduced.
[0126]
The invention according to claim 5 is characterized in that, in the invention according to claim 2, 3, or 4, an operation portion is provided on one end side of a release button provided with a pushing protrusion, and the lock portion is pushed. The amount of operation required for this is reduced, and operability is improved.
[0127]
According to a sixth aspect of the present invention, in the second or third or fourth aspect of the present invention, a relief for a mounting member to which a wiring device is mounted is provided at a portion other than the operation portion of the release button and exposed outside the body. Thus, it is possible to prevent the interference with the attachment member and prevent the visibility of the release button from being lowered. .
[0128]
According to a seventh aspect of the present invention, in any one of the first to sixth aspects of the present invention, an engaging portion for engaging with the pushing projection and temporarily fixing the release button is provided on the terminal plate. By temporarily fixing the release button to the board, the work of incorporating the release button into the body can be easily performed.
[0129]
According to an eighth aspect of the present invention, in the invention of the seventh aspect, a guide surface for guiding the pushing protrusion to the direction in which the pushing protrusion is engaged with the engaging portion and the direction in which the pushing protrusion is disengaged from the engaging portion is provided on the pushing protrusion. The workability is improved when the release button is temporarily fixed to the terminal plate and when the temporary fix is released after the release button is assembled into the body.
[0130]
According to a ninth aspect of the present invention, in the second aspect, the release button at the non-connection position is visually approved and the release button at the connection position is not visible when viewed from at least one surface of the body where the wire insertion hole is opened. It is characterized in that a step is provided on the body, and whether or not the electric wire is connected can be easily determined based on whether or not the release button is visually approved.
[0131]
According to a tenth aspect of the present invention, in the third aspect, the release button is movable in a plurality of directions, and the visibility of the release button is further improved.
[0132]
An eleventh aspect of the present invention is characterized in that, in the tenth aspect of the present invention, a tilt preventing means for preventing the release button from falling in the opposite operation direction is provided, and the workability of the assembly is improved by preventing the release button from falling. .
[0133]
According to a twelfth aspect of the present invention, in the invention of the tenth or eleventh aspect, a release portion for releasing a wiring member housed in the body is provided on the release button, and the size of the body can be reduced.
[0134]
According to a thirteenth aspect of the present invention, in the first aspect of the present invention, the release button is provided with a plurality of pushing protrusions for pushing the vicinity of both ends in a direction orthogonal to the pushing direction of the lock portion. The pressing force can be evenly applied to the lock portion, and the operability of the release button is improved.
[0135]
According to a fourteenth aspect of the present invention, in the second aspect of the present invention, the urging member is provided with a fixing portion that sandwiches the terminal plate and is fixed to the terminal plate, so that the urging member can be easily assembled. .
[0136]
According to a fifteenth aspect of the present invention, in the fourteenth aspect of the present invention, two terminal plates to which electric wires are respectively connected are formed integrally, and two terminal plates for elastically urging two release buttons corresponding to each terminal plate. A fixed portion having a biasing member, to which a fixed portion of an individually formed biasing member is fixed, and a fixed portion to which a fixed portion of the biasing member integrally formed is fixed. It is possible to cope with either the case where the biasing member is formed individually or the case where the biasing member is formed integrally, and it is possible to reduce the cost by using common parts and to configure the wiring device. Can be widened. .
[0137]
According to a sixteenth aspect of the present invention, in order to achieve the above object, a container is provided in which a rear portion is embedded in an embedding hole provided in a construction surface, and the container is housed in the container. And a mounting means for mounting the body to a mounting frame or a plate integrated with the mounting frame provided on the side surface of the body and installed around the embedding hole. Thus, a wiring device having the effects of the invention described in any one of claims 1 to 16 can be realized.
[0138]
According to a seventeenth aspect of the present invention, in the sixteenth aspect, a fixing pin is provided which is inserted into the wire insertion hole of the body and fixes the release button to the connection position only until the construction is performed. By fixing the release button to the connection position by the pin, it is possible to suppress the occurrence of a problem such as dust entering from the clearance between the release button and the body.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a first embodiment.
2 (a) is a front view, FIG. 2 (b) is a right side view, FIG. 2 (c) is a bottom view, and FIG. 2 (d) is a rear view.
FIG. 3 is a perspective view of the same.
4 (a) is a front view, FIG. 4 (b) is a bottom view, FIG. 4 (c) is a rear view, and FIG. 4 (d) is a right side view.
FIGS. 5A and 5B show a cover in the above, wherein FIG. 5A is a front view, FIG. 5B is a bottom view, FIG. 5C is a right side view, and FIG.
FIGS. 6A and 6B show the assembly member in the same as above, wherein FIG. 6A is a front view, FIG. 6B is a right side view, and FIG.
FIGS. 7A and 7B show the blade receiver in the above, wherein FIG. 7A is a front view, FIG. 7B is a bottom view, and FIG.
8A and 8B show a terminal plate in the above, wherein FIG. 8A is a front view, FIG. 8B is a bottom view, and FIG. 8C is a right side view.
FIGS. 9A and 9B show a release button in the above embodiment, wherein FIG. 9A is a front view, FIG. 9B is a bottom view, and FIG. 9C is a right side view.
FIGS. 10A and 10B show the return spring in the above, wherein FIG. 10A is a front view, FIG. 10B is a right side view, and FIG. 10C is a top view.
11A and 11B show a middle frame in the above, wherein FIG. 11A is a front view, FIG. 11B is a top view, and FIG. 11C is a right side view.
12A and 12B show the door in the above, wherein FIG. 12A is a front view, FIG. 12B is a top view, and FIG. 12C is a right side view.
FIG. 13 is a fragmentary cross-sectional view showing a state where an electric wire is connected to the terminal plate of the above.
FIG. 14 is an explanatory diagram of the terminal plate in the above.
FIG. 15 is a perspective view showing a terminal board having another configuration in the above.
FIGS. 16A and 16B show a terminal plate having still another configuration in the above embodiment, wherein FIG. 16A is a perspective view and FIG. 16B is a side view showing a state where electric wires are connected.
FIG. 17 is a side view showing a terminal board having another configuration in the above.
FIG. 18 is a cross-sectional view of a main part showing a state where an electric wire is connected to the terminal plate of the above.
FIGS. 19A and 19B show a terminal board having still another configuration in the above embodiment, wherein FIG. 19A is an exploded perspective view and FIG. 19B is a perspective view.
FIG. 20 is a view for explaining a method of fixing the terminal plate and the return spring in the above.
FIG. 21 is a side view of a main part of the release button in the above.
FIG. 22 is a diagram illustrating another method of fixing the terminal plate and the return spring in the above.
FIG. 23 is a rear view of the above.
FIG. 24 is a diagram illustrating a method of connecting the body and the cover in the above.
FIG. 25 is a diagram illustrating another method of connecting the body and the cover in the above.
FIG. 26 is an exploded perspective view of the plate to which the above is attached, as viewed from the front.
FIG. 27 is an exploded perspective view of the plate to which the above is attached, as viewed from the back.
FIG. 28 is an explanatory diagram illustrating a procedure for attaching the above-mentioned container to the plate frame.
FIG. 29 is an exploded perspective view of the second embodiment.
30 (a) is a front view, FIG. 30 (b) is a right side view, FIG. 30 (c) is a bottom view, and FIG. 30 (d) is a rear view.
FIG. 31 is a perspective view of the same.
32 (a) is a front view, FIG. 32 (b) is a right side view, FIG. 32 (c) is a rear view, FIG. 32 (d) is a bottom sectional view, and FIG. 32 (e) is a bottom view.
33 (a) is a front view, FIG. 33 (b) is a left side view, FIG. 33 (c) is a rear view, FIG. 33 (d) is a top view, and FIG. 33 (e) is a top sectional view.
FIG. 34 is a front view showing a state where the cover is removed.
35 (a) is a front view, FIG. 35 (b) is a top view, FIG. 35 (c) is a left side view, FIG. 35 (d) is a bottom view, and FIG. 35 (e) is a right side view. , (F) is a rear view.
36 (a) shows a front view, FIG. 36 (b) shows a top view, FIG. 36 (c) shows a left side view, FIG. 36 (d) shows a bottom view, and FIG. Is a right side view.
37 (a) is a front view, FIG. 37 (b) is a left side view, FIG. 37 (c) is a right side view, and FIG. 37 (d) is a top view.
38A and 38B show an O-type blade support for the grounding electrode in the above, wherein FIG. 38A is a front view, FIG. 38B is a top view, and FIG. 38C is a right side view.
39 (a) is a front view, FIG. 39 (b) is a left side view, FIG. 39 (c) is a top view, and FIG. 39 (d) is a right side view.
FIG. 40 is an explanatory diagram illustrating a terminal plate for a ground electrode in the same as above.
FIG. 41 is a perspective view in which the blade receiving block for a voltage electrode in the above is integrated.
FIGS. 42 (a) to 42 (c) are perspective views showing the structure of a blade receiver in the integrated blade receiving block of the above.
FIG. 43 is a perspective view showing a terminal board having another configuration in the above.
FIG. 44 is a partially omitted rear view showing a body having another configuration in the above.
45A and 45B show a release button for a voltage pole in the above, wherein FIG. 45A is a front view, FIG. 45B is a top view, and FIG. 45C is a right side view.
FIGS. 46A and 46B show the return spring in the above, wherein FIG. 46A is a front view, FIG. 46B is a top view, and FIG. 46C is a right side view.
FIG. 47 is a diagram illustrating a method of fixing the terminal plate and the return spring in the above.
FIG. 48 is a diagram illustrating a method of fixing the terminal plate and a return spring having another configuration in the above.
FIG. 49 is an explanatory diagram for explaining the operation of assembling the release button in the above.
FIG. 50 shows a release button for a ground electrode in the above embodiment, (a) is a front view, (b) is a top view, and (c) is a right side view.
FIGS. 51A and 51B show a terminal part for a ground electrode in the above, wherein FIG. 51A is a cross-sectional view of a main part at a non-connection position, and FIG.
FIG. 52 is a cross-sectional view of a main part in a state where the above-mentioned container is attached to a plate frame.
FIG. 53 is an explanatory diagram of a fixing pin in the above.
FIG. 54 is an exploded perspective view of the third embodiment.
55 (a) is a front view, FIG. 55 (b) is a right side view, FIG. 55 (c) is a bottom view, and FIG. 55 (d) is a rear view.
FIG. 56 is a perspective view of the same.
57 (a) is a front view, FIG. 57 (b) is a bottom view, FIG. 57 (c) is a right side view, and FIG. 57 (d) is a rear view.
58 shows the cover in the above, (a) is a front view, (b) is a left side view, (c) is a rear view, and (d) is a bottom view.
FIG. 59 (a) is a perspective view showing an integral type of a blade receiving block for a voltage electrode in the above, and FIG. 59 (b) is a perspective view showing a structure of a blade receiving in the integrated type blade receiving block.
FIG. 60 is a perspective view showing an assembling member of the above.
FIGS. 61A and 61B show an assembly member having another configuration in the above embodiment, in which FIG. 61A is a front view, FIG. 61B is a right side view, and FIG.
FIG. 62 is an exploded perspective view of the fourth embodiment.
63 (a) is a front view, FIG. 63 (b) is a right side view, FIG. 63 (c) is a bottom view, and FIG. 63 (d) is a rear view.
FIG. 64 is a perspective view of the same.
65A and 65B show a body in the above, wherein FIG. 65A is a front view, FIG. 65B is a bottom view, FIG. 65C is a right side view, and FIG.
66A and 66B show the cover in the above, wherein FIG. 66A is a front view, FIG. 66B is a bottom view, FIG. 66C is a right side view, and FIG.
FIG. 67 (a) is a perspective view showing an integral type of a blade receiving block for a voltage electrode in the above, and FIG. 67 (b) is a perspective view showing a structure of a blade receiving unit in the integrated type blade receiving block.
FIG. 68 (a) is a perspective view showing a terminal board having another configuration, and FIG. 68 (b) is a perspective view showing a release button having another configuration.
FIG. 69 is a cross-sectional view showing a main part of a conventional example.
FIG. 70 is an explanatory diagram for describing the operation of removing the electric wire in the above.
FIG. 71 is an explanatory diagram illustrating a connection configuration between an electric wire and a terminal plate in Embodiment 1;
[Explanation of symbols]
1 body
40 terminals
41 Terminal board
43 Contact piece
43a contact part
43b pressing part
43c pressing part
44 Lock Tablet Piece
44a Lock section
60 Release button
61 Operation unit
64 pushing projection

Claims

A terminal plate that comes into contact with the electric wire introduced into the body through the electric wire insertion hole penetrating the body of the wiring device, connecting means for connecting the electric wire and the terminal plate, and releasing means for releasing the connection state by the connecting means. The connecting means includes a pressing portion that protrudes toward the terminal plate and presses the electric wire inserted between the terminal plate and the terminal plate, and a tip bites into a part of the electric wire to prevent the electric wire from coming off in the anti-insertion direction. A quick-connecting terminal device, comprising: a lock portion; and the releasing means has a pushing protrusion for pushing the tip of the lock portion and separating from the electric wire when operated.

The release means has an operation part exposed on the surface of the body and manually operated and the pushing protrusion, and the connection position and the wire when the wire is connected to the terminal plate by the connection means are connected to the terminal plate. A release button movably disposed on the body between a non-connection position in a non-connection state that is not connected to the board, and an urging member for elastically urging the release button from the connection position to the non-connection position The quick-connect terminal device according to claim 1, further comprising:

3. The quick-connect terminal device according to claim 2, wherein the release button is provided with a pushing protrusion on one end side, and the other end side is supported and swingably disposed on the body.

4. The quick-connecting terminal device according to claim 2, wherein a portion of the release button to which the urging member abuts is recessed in a direction of urging by the urging member.

5. The quick-connecting terminal device according to claim 2, wherein an operation portion is provided on one end side of the release button provided with the pushing protrusion.

The quick-connect as claimed in claim 2, wherein an escape portion for an attachment member to which the wiring device is attached is provided in a portion other than the operation portion of the release button and exposed outside the body. Terminal device.

The quick-connecting terminal device according to any one of claims 1 to 6, wherein an engaging portion that engages with the pushing protrusion and temporarily fixes the release button is provided on the terminal plate.

8. The quick-connecting device according to claim 7, wherein a guide surface is provided on the pushing protrusion so as to guide the pushing protrusion in a direction in which the pushing protrusion is engaged with the engaging portion and in a direction in which the pushing protrusion is disengaged from the engaging portion. Terminal device.

A step is provided on the body at least when viewed from at least one surface of the body where the wire insertion hole is opened, the release button in the non-connection position being visually approved and the release button in the connection position being invisible. Item 3. The quick-connect terminal device according to Item 2.

4. The quick-connect terminal device according to claim 3, wherein the release button is movable in a plurality of directions.

11. The quick-connect terminal device according to claim 10, further comprising a fall prevention means for preventing the release button from falling in a direction opposite to the operation direction.

The quick-connecting terminal device according to claim 10 or 11, wherein a release portion for releasing a wiring member housed in the body is provided on the release button.

2. The quick-connecting terminal device according to claim 1, wherein the release button is provided with a plurality of pushing protrusions for pushing the vicinity of both ends in a direction orthogonal to the pushing direction of the lock portion.

The quick-connecting terminal device according to claim 2, wherein a fixing portion sandwiching the terminal plate and fixed to the terminal plate is provided on the biasing member.

Two terminal plates to which electric wires are respectively connected are integrally formed, and two biasing members for elastically biasing two release buttons corresponding to the individual terminal plates are provided, and individually formed biasing members. 15. The terminal plate according to claim 14, wherein a fixed portion to which the fixing portion is fixed and a fixed portion to which the fixing portion of the two urging members integrally formed are fixed are provided. Quick connection terminal device.

A body disposed in such a manner that a rear portion is embedded in an embedding hole provided in a construction surface, the quick-connect terminal device according to any one of claims 1 to 15, which is housed in the body, and a side surface of the body. And a mounting means for mounting the body on a mounting frame or a mounting frame integrated plate provided around the embedding hole.

17. The wiring device according to claim 16, further comprising a fixing pin that is inserted into the electric wire insertion hole of the container until the work is performed and fixes the release button at the connection position.