JP3969339B2 - Wiring equipment - Google Patents

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Publication number
JP3969339B2
JP3969339B2 JP2003114811A JP2003114811A JP3969339B2 JP 3969339 B2 JP3969339 B2 JP 3969339B2 JP 2003114811 A JP2003114811 A JP 2003114811A JP 2003114811 A JP2003114811 A JP 2003114811A JP 3969339 B2 JP3969339 B2 JP 3969339B2
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Japan
Prior art keywords
cover
fitting
piece
locking
electric wire
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JP2003114811A
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JP2004228060A (en
Inventor
稔 本田
直樹 金本
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Priority to JP2003114811A priority Critical patent/JP3969339B2/en
Priority to TW92124168A priority patent/TWI236866B/en
Priority to CN 200310113688 priority patent/CN1503419B/en
Publication of JP2004228060A publication Critical patent/JP2004228060A/en
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Description

【0001】
【発明の属する技術分野】
本発明は、ボディとカバーを結合して器体が構成される配線器具に関するものである。
【0002】
【従来の技術】
一般に、コンセントやスイッチのような配線器具を製造するには、栓刃を受ける刃受部材や固定接点及び可動接点と電線とを電気的に接続する端子板のような充電部材を器体に収納するから、合成樹脂の絶縁材料からなるボディとカバーを組み合わせて器体を形成している。器体を構成するボディとカバーとの結合には、金属製の組立枠を用いる方法が採用されている。
【0003】
しかしながら、上記方法では、充電部材と充電部材ではない金属製の組立枠とが比較的近接して配置されることになり、組立枠のような非充電部材と充電部材との絶縁距離を十分に大きくとることができない場合があり、十分な絶縁距離をとろうとすると設計上の制約が大きくなるという問題があった。
【0004】
これに対して、図83に示すようにボディ301の長手方向の両側面にそれぞれ形成される各2つの組立凸部302aとカバー303の長手方向の両側面にそれぞれ形成される各2つの組立凸部302bとのうち前後方向に沿って位置し互いに当接する2つの組立凸部302a,302bによりボディ301とカバー303とに跨る組立突起302が形成され、合成樹脂製の組立枠304に設けられた組立孔304aに組立突起302を嵌合することでボディ301とカバー303を結合してなる器体300を備えた配線器具が提供されている(特許文献1参照)。
【0005】
【特許文献1】
特開2002−8470号公報(段落0027、第1図)
【0006】
【発明が解決しようとする課題】
ところで、上記特許文献1に記載された従来例では、上記前者の従来例の問題を解決することはできるものの、組立突起302がボディ301側の組立凸部302aとカバー303側の組立凸部302bを突き合わせて形成されるため、それぞれの組立凸部302a,302bにおける寸法誤差によって組立枠304にがたつきが生じやすいという問題があった。
【0007】
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、組立部材のがたつきを抑えてボディとカバーを強固に結合することができる配線器具を提供することにある。
【0008】
【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、ボディとカバーを結合してなる器体と、ボディ及びカバーの側面にそれぞれ突設された1乃至複数の嵌合部と、合成樹脂成型品からなりボディ並びにカバーの嵌合部と個別に凹凸嵌合する一対の嵌合孔を有する1乃至複数の組立部材とを備え、組立部材の嵌合孔にボディ及びカバーの嵌合部をそれぞれ嵌合させることでボディとカバーを結合してなり、器体内部に挿入される係止突片が組立部材の嵌合孔に挟まれた部位に設けられ、係止突片の先端に形成された係止爪が係止する被係止部が器体内部に設けられたことを特徴とする。
【0010】
請求項の発明は、請求項の発明において、被係止部がカバーに設けられ、カバー側面の係止突片が挿入される部位に係止爪をカバー内に案内するガイド部が設けられたことを特徴とする。
【0011】
請求項の発明は、請求項の発明において、被係止部がボディに設けられ、ボディ側面の係止突片が挿入される部位に係止爪をボディ内に案内するガイド部が設けられたことを特徴とする。
【0012】
請求項の発明は、請求項1〜の何れかの発明において、施工面に設けられる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部が器体に設けられ、後部を埋込孔に埋め込む形で器体が施工面に配設されることを特徴とする。
【0013】
請求項の発明は、請求項の発明において、前記取付部が、一対の嵌合孔と一列に並ぶように組立部材に設けられたことを特徴とする。
【0014】
請求項の発明は、請求項の発明において、組立部材の取付部が設けられた部位の幅寸法が他の部位の幅寸法と異なることを特徴とする。
【0017】
請求項の発明は、上記目的を達成するために、ボディとカバーを結合してなる器体と、ボディ及びカバーの側面にそれぞれ突設された1乃至複数の嵌合部と、合成樹脂成型品からなりボディ並びにカバーの嵌合部と個別に凹凸嵌合する一対の嵌合孔を有する1乃至複数の組立部材と、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、ばね力を利用して端子板との間で電線を狭持するとともに鎖錠部が電線に食い込んで抜け止めする接続手段と、電線接続手段による抜け止め状態を解除する解除手段とを備え、組立部材の嵌合孔にボディ及びカバーの嵌合部をそれぞれ嵌合させることでボディとカバーを結合してなり、前記嵌合部は、ボディとカバーを結合する器体の前後方向に沿った幅寸法が該前後方向に直交し且つ器体の側面に平行な方向に沿った幅寸法よりも小さく設定され、解除手段は、器体の側面に露出して手動操作される操作部と、器体内に枢支されて操作部を回動自在とする軸部と、軸部を支点に操作部が手動操作によって回動したときにばね力に抗して接続手段の電線に食い込んだ鎖錠部を電線から引き離す向きに押し動かす押動部とを具備してなり、組立部材に解除手段の操作部との干渉を逃がす段部が設けられたことを特徴とする。
【0018】
請求項の発明は、請求項の発明において、器体内部に挿入される1乃至複数の係止突片が組立部材の端部に設けられ、係止突片の先端に形成された係止爪が係止する被係止部が器体内部に設けられたことを特徴とする。
【0019】
請求項の発明は、請求項の発明において、解除手段の操作部を回動自在に露出させるための溝部が器体の側面に設けられ、操作部の非操作時に溝部を覆い隠すとともに操作部の操作時には操作部とともに回動する目隠し部が組立部材に設けられたことを特徴とする。
請求項10の発明は、請求項7の発明において、器体の同一側面に設けられる前記複数の嵌合部が、三角形の頂点の位置に配設されたことを特徴とする。
【0020】
【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。
【0021】
(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。
【0022】
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。
【0023】
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。
【0024】
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。
【0025】
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。
【0026】
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84(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。
【0027】
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。
【0028】
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。
【0029】
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。
【0030】
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。
【0031】
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。
【0032】
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。
【0033】
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。
【0034】
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。
【0035】
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。
【0036】
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。
【0037】
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)。
【0038】
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。
【0039】
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。
【0040】
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。
【0041】
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。
【0042】
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。
【0043】
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。
【0044】
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。
【0045】
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。
【0046】
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。
【0047】
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。
【0048】
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。
【0049】
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。
【0050】
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。
【0051】
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。
【0052】
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。
【0053】
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。
【0054】
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。
【0055】
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。
【0056】
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。
【0057】
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。
【0058】
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。
【0059】
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。
【0060】
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。
【0061】
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。
【0062】
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。
【0063】
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。
【0064】
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。
【0065】
(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。
【0066】
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。
【0067】
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。
【0068】
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。
【0069】
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。
【0070】
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。
【0071】
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。
【0072】
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。
【0073】
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。
【0074】
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。
【0075】
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。
【0076】
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)。
【0077】
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。
【0078】
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。
【0079】
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。
【0080】
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。
【0081】
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。
【0082】
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。
【0083】
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。
【0084】
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。
【0085】
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。
【0086】
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。
【0087】
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。
【0088】
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)。
【0089】
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。
【0090】
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。
【0091】
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。
【0092】
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。
【0093】
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。
【0094】
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。
【0095】
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。
【0096】
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。
【0097】
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。
【0098】
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)。
【0099】
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。
【0100】
(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。
【0101】
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。
【0102】
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。
【0103】
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。
【0104】
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。
【0105】
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。
【0106】
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。
【0107】
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。
【0108】
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。
【0109】
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。
【0110】
(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。
【0111】
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。
【0112】
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。
【0113】
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。
【0114】
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。
【0115】
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。
【0116】
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。
【0117】
(実施形態5)
本実施形態は、図68〜図70に示すように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に備える点で実施形態1と共通するが、ボディ10とカバー20を結合して器体1を組み立てる組立構造、並びに電線を接続する端子部40の構造が異なっており、これ以外の実施形態1と共通の構成要素には同一の符号を付して説明を省略する。
【0118】
まず、解除釦140について説明する。本実施形態における解除釦140は合成樹脂成型品からなり、図68及び図75に示すように棒状の操作部141の両端部からそれぞれ同一の方向に一対の連結部144,144が突出し、各連結部144,144の先端部分が架橋部146により連結されて全体が略ロ字型に形成されている。また、架橋部146の両端部からは連結部144,144と反対方向に一対の押動部143,143が突設され、架橋部146の中央部からは押動部143と略平行に腕部142が突設されるとともに腕部142の突出方向に略直交し且つ連結部144と反対の方向へ支持部145が突設されている。さらに腕部142の先端には、後述するようにボディ10に設けられた軸受け台14に摺動自在に載置される円柱状の軸部142aが、その軸方向が架橋部146の長手方向と平行となるように設けられている。そして、後述するようにカバー20に設けられた固定リブ28に支持部145が当接することで軸受け台14に載置された状態で回動自在に軸部142aが支持される。ここで、支持部145における軸部142aと反対側の側面145aは円柱面に形成されており、固定リブ28の先端には支持部145の側面145aに摺接する曲面(円柱面)28aが形成されている。
【0119】
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、解除釦140は縦溝15を通して連結部144並びに操作部141がボディ10の外に露出され、一対の押動部143,143が端子板41の鎖錠片44における受け部44cと対向し(図76参照)、収納室13内に設けられた軸受け台14に軸部142aを載置するとともに支持部145をカバー20の固定リブ28の先端に当接することにより、軸部142aを支点に器体1の前後方向(図68における上下方向)に沿って回動自在に各収納室13,13に配設される(図70参照)。ここで本実施形態においては、図78に示すように腕部142の後面側に軸受け台14を逃がすための逃がし部142bが凹設されている。
【0120】
而して、端子部40に接続された電線を引き抜くには、縦溝15,15を通して器体1の側面に露出している操作部141を指で押し上げるように操作すればよい。すなわち、図79(b)に示すように操作部141を前方(図79における上方)へ押し上げるように操作すれば、軸部142aを支点にして解除釦140が回動し、押動部143,143でそれぞれ対向する端子板41の受け部44c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、本実施形態の解除釦140はてこの原理を使って押動部143により鎖錠部44aを押し動かしているため、実施形態1のように器体1に対して解除釦60を平行移動させることで鎖錠部44aを押し動かす構造に比べて操作部141にかかる荷重が低減できるという利点がある。
【0121】
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。
【0122】
ボディ10の長手方向に対向する両側面には、図71に示すように一対の縦溝15に挟まれた中央部に角柱状の嵌合部6が突設されている。一方、カバー20の長手方向の両側面には、図72に示すように一対の嵌合部7がそれぞれ突設されている。ここで、カバー20に突設されている嵌合部7は、図72に示すようにボディ10とカバー20を結合する器体1の前後方向(図72(d)における上下方向)に沿った幅寸法が前後方向に直交し且つ器体1の側面に平行な方向(図72(d)における左右方向)に沿った幅寸法よりも小さく設定され、さらに四隅のうちの一つに切り欠き7aが形成されている。
【0123】
組立部材150は弾性を有する合成樹脂成型品からなり、図73に示すようにカバー20の嵌合部7,7と各々嵌合する一対の嵌合孔151,151が長手方向に並設された短冊状の主片152と、ボディ10の嵌合部6と嵌合する嵌合孔153aが設けられて主片152の後端縁中央より後方へ突設された逆凸字状の凸片153とを有し、器体1と対向する主片152の背面側において嵌合孔151,151の隅と重なる両角部からは先端に係止爪154aを有する係止突片154が背方へ突設されている。また、主片152の表面における前方両端部には、プレート枠110に取り付けるための一対の取付部155が突設されている。
【0124】
一方、カバー20の長手方向の両側面には、嵌合部7の切り欠き7aに連通する凹溝27と、凹溝27の奥側に設けられて組立部材150の係止突片154に設けた係止爪154aが係止する被係止部26とが長手方向両端部近傍の背面側に形成されている(図72(c)参照)。
【0125】
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154を凹溝27に挿入するように組立部材150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、組立部材150の嵌合孔153a,151にボディ10及びカバー20の各嵌合部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154の先端に設けた係止爪154a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150の嵌合部6,7からの脱落が防止できる。
【0126】
ここで本実施形態においては、カバー20の嵌合部7を器体1の前後方向に沿った幅寸法が前後方向に直交し且つ器体1の側面に平行な方向(以下、器体1の「上下方向」と呼ぶ)に沿った幅寸法よりも小さく設定されているため、実施形態1に比較して嵌合部7,7の強度を低下させずに器体1の前後方向に沿った組立部材150の寸法を小さくすることができる。なお、図80に示すようにカバー20の嵌合部7,7を一つの嵌合孔151に嵌合する構造とすることも可能ではあるが、本実施形態のように各嵌合部7,7と個別に嵌合する嵌合孔151,151を設けるとともに、図70に示すように器体1の同一側面に設けられる嵌合部6,7を三角形の頂点の位置に配設するようにすれば、組立部材150の強度の向上と器体1に対する位置決め精度の向上とが図れるという利点がある。
【0127】
ところで上述のような構造の解除釦140を採用したことから、本実施形態においては組立部材150の主片152に対して凸片153の厚みを小さくすることで表面に段部が設けてあり、この段部によって操作部141を操作した場合に凸片153が操作部141に干渉することが無く、操作部151をスムーズに操作することができる。また、係止突片154が主片152の両端部に設けられ、器体1の前後方向に撓むように係止爪154aが突設されているから、係止片154が解除釦140に干渉することがなく、しかも、係止突片154を器体1の上下方向に撓ませる場合に比較して組立部材150の上下方向における小型化が可能である。
【0128】
(実施形態6)
本実施形態は、解除釦140の操作部141を操作していないときにボディ10の側面に設けられた縦溝15を通して器体1の内部が外から見えてしまうのを防ぐために、操作部141の非操作時に縦溝15,15を覆い隠すとともに操作部141が操作されたときには操作部141とともに回動する目隠し部156が組立部材150に設けられている点に特徴がある。なお、これ以外の構成は実施形態5と共通であるから、共通の構成要素には同一の符号を付して適宜図示並びに説明を省略する。
【0129】
本実施形態の組立部材150は、図81に示すようにボディ10の嵌合部6と嵌合する嵌合孔153aが設けられた突片153と、薄肉のヒンジ部156aを介して突片153の後端縁に連結された矩形平板状の目隠し部156とが主片152とともに一体に形成された合成樹脂成型品からなり、ヒンジ部156aにより突片153に対して目隠し部156が回動自在となっている。また、目隠し部156の後端縁には、後方から前方(図81においては下から上)に向かって内向きに傾斜する傾斜面156bが形成されている。
【0130】
而して、組立部材150を用いてボディ10とカバー20を結合し器体1を組み立てれば、図82(a)に示すように目隠し部156によって器体1の側面に露出する一対の縦溝15,15が覆い隠されて器体1の内部が外から見えることが無く、塵埃などの異物が縦溝15,15を通して器体1内に侵入するのを防ぐことができる。そして、縦溝15,15を通して器体1の側面に露出している操作部141を指で押し上げるように操作すると、図82(b)に示すように組立部材150の目隠し部156がヒンジ部156aを支点として操作部141とともに回動するため、操作部141の操作に支障を来すことがない。
【0131】
【発明の効果】
請求項1の発明は、ボディとカバーを結合してなる器体と、ボディ及びカバーの側面にそれぞれ突設された1乃至複数の嵌合部と、合成樹脂成型品からなりボディ並びにカバーの嵌合部と個別に凹凸嵌合する一対の嵌合孔を有する1乃至複数の組立部材とを備え、組立部材の嵌合孔にボディ及びカバーの嵌合部をそれぞれ嵌合させることでボディとカバーを結合してなり、器体内部に挿入される係止突片が組立部材の嵌合孔に挟まれた部位に設けられ、係止突片の先端に形成された係止爪が係止する被係止部が器体内部に設けられたことを特徴とし、ボディの嵌合部とカバーの嵌合部をそれぞれ組立部材の一対の嵌合孔に個別に凹凸嵌合させるため、ボディ及びカバーの嵌合部を同じ嵌合孔に凹凸嵌合させる場合に比較してそれぞれの嵌合部の寸法誤差による組立部材のがたつきを抑えてボディとカバーを強固に結合することができる。また、係止爪を被係止部に係止することで組立部材がボディ及びカバーの嵌合部から脱落することを防ぐことができ、しかも、係止突片を嵌合孔に挟まれた部位に設けることで組立部材の小型化が可能である。
【0133】
請求項の発明は、請求項の発明において、被係止部がカバーに設けられ、カバー側面の係止突片が挿入される部位に係止爪をカバー内に案内するガイド部が設けられたことを特徴とし、係止突片がカバー内に挿入し易くなり組立部材によるボディとカバーの組み立て作業が容易になる。
【0134】
請求項の発明は、請求項の発明において、被係止部がボディに設けられ、ボディ側面の係止突片が挿入される部位に係止爪をボディ内に案内するガイド部が設けられたことを特徴とし、係止突片がボディ内に挿入し易くなり組立部材によるボディとカバーの組み立て作業が容易になる。
【0135】
請求項の発明は、請求項1〜の何れかの発明において、施工面に設けられる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部が器体に設けられ、後部を埋込孔に埋め込む形で器体が施工面に配設されることを特徴とし、取付枠又はプレートを用いて壁面などの施工面に器体を埋込配設することができる。
【0136】
請求項の発明は、請求項の発明において、前記取付部が、一対の嵌合孔と一列に並ぶように組立部材に設けられたことを特徴とし、器体の寸法が異なると取付部の位置も異なるが、寸法が異なる器体に対して組立部材を共通に使用することができてコストダウンが図れる。
【0137】
請求項の発明は、請求項の発明において、組立部材の取付部が設けられた部位の幅寸法が他の部位の幅寸法と異なることを特徴とし、ボディ及びカバーに対する組立部材の嵌合方向が分かり易くなり作業性が向上する。
【0140】
請求項の発明は、ボディとカバーを結合してなる器体と、ボディ及びカバーの側面にそれぞれ突設された1乃至複数の嵌合部と、合成樹脂成型品からなりボディ並びにカバーの嵌合部と個別に凹凸嵌合する一対の嵌合孔を有する1乃至複数の組立部材と、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、ばね力を利用して端子板との間で電線を狭持するとともに鎖錠部が電線に食い込んで抜け止めする接続手段と、電線接続手段による抜け止め状態を解除する解除手段とを備え、組立部材の嵌合孔にボディ及びカバーの嵌合部をそれぞれ嵌合させることでボディとカバーを結合してなり、前記嵌合部は、ボディとカバーを結合する器体の前後方向に沿った幅寸法が該前後方向に直交し且つ器体の側面に平行な方向に沿った幅寸法よりも小さく設定され、解除手段は、器体の側面に露出して手動操作される操作部と、器体内に枢支されて操作部を回動自在とする軸部と、軸部を支点に操作部が手動操作によって回動したときにばね力に抗して接続手段の電線に食い込んだ鎖錠部を電線から引き離す向きに押し動かす押動部とを具備してなり、組立部材に解除手段の操作部との干渉を逃がす段部が設けられたことを特徴とし、ボディの嵌合部とカバーの嵌合部をそれぞれ組立部材の一対の嵌合孔に個別に凹凸嵌合させるため、ボディ及びカバーの嵌合部を同じ嵌合孔に凹凸嵌合させる場合に比較してそれぞれの嵌合部の寸法誤差による組立部材のがたつきを抑えてボディとカバーを強固に結合することができる。また、嵌合部の強度を低下させずに器体の前後方向に沿った組立部材の寸法を小さくすることができる。さらに、器体を持った一方の手で操作部を操作すれば、電線に食い込んでいる鎖錠部が押動部によって押し動かされて抜け止め状態が解除され、他方の手で電線挿入孔から電線を引き抜くことができ、従来に比較して電線の取り外し作業が容易に行えるとともに、段部を設けたことで組立部材と操作部が干渉することがない。
【0141】
請求項の発明は、請求項の発明において、器体内部に挿入される1乃至複数の係止突片が組立部材の端部に設けられ、係止突片の先端に形成された係止爪が係止する被係止部が器体内部に設けられたことを特徴とし、係止爪を被係止部に係止することで組立部材がボディ及びカバーの嵌合部から脱落することを防ぐことができ、しかも、係止突片を組立部材の端部に設けることで解除手段との干渉を避けることが可能である。
【0142】
請求項の発明は、請求項の発明において、解除手段の操作部を回動自在に露出させるための溝部が器体の側面に設けられ、操作部の非操作時に溝部を覆い隠すとともに操作部の操作時には操作部とともに回動する目隠し部が組立部材に設けられたことを特徴とし、操作部の非操作時には器体の溝部が目隠し部で覆い隠されるために溝部を通して器体の内部が外から見えることが無く、塵埃などの異物が溝部を通して器体内に侵入するのを防ぐことができ、操作部の操作時には目隠し部が操作部とともに回動するために操作部の操作に支障を来すことがない。
請求項10の発明は、請求項7の発明において、器体の同一側面に設けられる前記複数の嵌合部が、三角形の頂点の位置に配設されたことを特徴とし、組立部材の強度が向上できる。
【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】実施形態5のコンセントを示す分解斜視図である。
【図69】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70】同上の斜視図である。
【図71】同上におけるボディを示し、(a)は正面図、(b)は下面図、(c)は(a)のA−A線断面矢視図、(d)は背面図、(e)は右側面図である。
【図72】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73】同上における組立部材を示し、(a)は正面図、(b)は上面図、(c)は下面図、(d)右側面図である。
【図74】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75】同上における解除釦を示し、(a)は正面図、(b)は(a)のA−A線断面矢視図、(c)は下面図、(d)は右側面図である。
【図76】同上の端子板と解除釦との配置関係を示す斜視図である。
【図77】同上における解除釦の斜視図である。
【図78】同上における解除釦を後方から見た斜視図である。
【図79】(a)(b)は同上の解除釦の動作説明図である。
【図80】同上における組立部材の他の構造を示す斜視図である。
【図81】実施形態6における組立部材の斜視図である。
【図82】(a)(b)は同上の動作説明図である。
【図83】従来例を示す分解斜視図である。
【図84】同上における端子部の接続構成を説明する説明図である。
【符号の説明】
1 器体
6 嵌合部
7 嵌合部
10 ボディ
20 カバー
50 組立部材
51 嵌合孔
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wiring device in which a body is formed by combining a body and a cover.
[0002]
[Prior art]
Generally, in order to manufacture a wiring device such as an outlet or a switch, a charging member such as a blade receiving member that receives a plug blade or a terminal plate that electrically connects a fixed contact and a movable contact to an electric wire is accommodated in the body. Therefore, a body is formed by combining a body made of a synthetic resin insulating material and a cover. A method of using a metal assembly frame is employed for coupling the body and the cover constituting the container.
[0003]
However, in the above method, the charging member and the metal assembly frame that is not the charging member are disposed relatively close to each other, and the insulation distance between the non-charging member such as the assembly frame and the charging member is sufficiently large. There is a case where it cannot be made large, and there is a problem that a design restriction becomes large when a sufficient insulation distance is taken.
[0004]
On the other hand, as shown in FIG. 83, each of the two assembly projections 302a formed on both side surfaces of the body 301 in the longitudinal direction and each of the two assembly projections formed on both side surfaces of the cover 303 in the longitudinal direction. An assembly projection 302 straddling the body 301 and the cover 303 is formed by two assembly projections 302a and 302b that are positioned along the front-rear direction and abut against each other among the portions 302b, and are provided on an assembly frame 304 made of synthetic resin. There is provided a wiring device provided with a container body 300 in which a body 301 and a cover 303 are coupled by fitting an assembly protrusion 302 into an assembly hole 304a (see Patent Document 1).
[0005]
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-8470 (paragraph 0027, FIG. 1)
[0006]
[Problems to be solved by the invention]
By the way, in the conventional example described in the above-mentioned patent document 1, although the problem of the former conventional example can be solved, the assembly protrusion 302 has the assembly protrusion 302a on the body 301 side and the assembly protrusion 302b on the cover 303 side. Therefore, there is a problem that the assembly frame 304 is likely to be rattled due to a dimensional error in each of the assembly convex portions 302a and 302b.
[0007]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a wiring device capable of firmly bonding a body and a cover while suppressing rattling of an assembly member.
[0008]
[Means for Solving the Problems]
  In order to achieve the above object, a first aspect of the present invention is a container formed by combining a body and a cover, one or more fitting portions projecting from the side surfaces of the body and the cover, and a synthetic resin molding. 1 and a plurality of assembly members each having a pair of fitting holes for individually engaging and disengaging the body and cover, and the body and cover fitting portions are respectively provided in the fitting holes of the assembly members. Do not connect the body and cover by matingThe locking projections inserted into the container body are provided at the portion sandwiched between the fitting holes of the assembly member, and the locked portion formed by the locking claw formed at the tip of the locking projection Was provided inside the vesselIt is characterized by that.
[0010]
  Claim2The invention of claim1In this invention, the locked portion is provided on the cover, and a guide portion for guiding the locking claw into the cover is provided at a portion where the locking protrusion on the side of the cover is inserted.
[0011]
  Claim3The invention of claim1In this invention, the locked portion is provided on the body, and a guide portion for guiding the locking claw into the body is provided at a portion where the locking protrusion on the side of the body is inserted.
[0012]
  Claim4The invention of claim 1 to claim 13In any of the inventions, a mounting portion for mounting the body on a mounting frame or a mounting frame-integrated plate installed around the embedding hole provided on the construction surface is provided on the body, and the rear portion is used as the embedding hole. The container is arranged on the construction surface in an embedded form.
[0013]
  Claim5The invention of claim4In this invention, the mounting portion is provided in the assembly member so as to be aligned with the pair of fitting holes.
[0014]
  Claim6The invention of claim5In the present invention, the width dimension of the part where the mounting portion of the assembly member is provided is different from the width dimension of the other part.
[0017]
  Claim7The invention ofIn order to achieve the above object, a body formed by combining a body and a cover, one or more fitting portions projecting from the side surfaces of the body and the cover, and a synthetic resin molded product, One or a plurality of assembly members having a pair of fitting holes for individually engaging with the fitting portion;The terminal plate that comes into contact with the electric wire introduced into the main body through the electric wire insertion hole that penetrates the main body and the terminal plate using the spring force and the locking part bite into the electric wire A connecting means for preventing the disconnection, and a releasing means for releasing the retaining state by the electric wire connecting means,The body and the cover are joined by fitting the fitting part of the body and the cover to the fitting hole of the assembly member, respectively, and the fitting part extends along the front-rear direction of the container body that joins the body and the cover. The width dimension is set smaller than the width dimension along the direction perpendicular to the front-rear direction and parallel to the side surface of the body,The release means includes an operation portion that is exposed to the side of the body and is manually operated, a shaft portion that is pivotally supported in the body and allows the operation portion to rotate, and the operation portion is manually operated with the shaft portion as a fulcrum. And a pushing part that pushes the locking part that bites into the electric wire of the connecting means against the spring force when it is turned and moves it away from the electric wire, and the assembly member interferes with the operating part of the releasing means The step part which escapes is provided, It is characterized by the above-mentioned.
[0018]
  Claim8The invention of claim7In this invention, the to-be-latched part which the latching claw formed in the front-end | tip of the latching protrusion is provided with the 1 or several latching projection piece inserted in the inside of a container body in the edge part of an assembly member Is provided inside the container.
[0019]
  Claim9The invention of claim7In this invention, a groove portion for exposing the operation portion of the release means to be freely rotatable is provided on the side surface of the container body so as to cover the groove portion when the operation portion is not operated and to rotate together with the operation portion when the operation portion is operated. A blindfold is provided in the assembly member.
  According to a tenth aspect of the present invention, in the seventh aspect of the invention, the plurality of fitting portions provided on the same side surface of the vessel body are arranged at the positions of the apexes of the triangle.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments 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 an outlet, and it goes without saying that the technical idea of the present invention can be applied to a wiring device other than an outlet such as a switch.
[0021]
(Embodiment 1)
As shown in FIGS. 1 to 3, the container 1 is the same as the body 10 formed in a rectangular parallelepiped shape whose front surface is opened using a thermosetting synthetic resin (for example, urea resin) having excellent tracking resistance. It is formed by bonding a cover 20 formed in a rectangular parallelepiped shape with a rear surface opened using a thermosetting synthetic resin (for example, urea resin) having excellent tracking resistance. The container 1 has a prescribed unit dimension to be described later.
[0022]
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, as will be described later, a partition wall 180a is formed on the middle frame 180 housed in the cover 20 (see FIG. 11), and when the body 10 and the cover 20 are joined, the partition wall 12 of the body 10 and the cover 20 The inner space of the container 1 is divided into two independent chambers by abutting against the partition wall 180a of the middle frame 180 housed in the container.
[0023]
In each storage chamber 13 formed through the partition wall 12 in the body 10, blade receptacles 31 for receiving plug blades of plugs are respectively stored. As shown in FIG. 7, each blade receiver 31 has a pair of blade receiving springs 32 that sandwich the plug blades at the tip portions facing each other, and a U-shape that continuously couples one side surfaces of the both blade receiving springs 32. And a blade receiving spring 33 that protrudes from the connecting piece 34 and faces the side surface of the double blade receiving spring 32. In addition, four cylindrical protrusions 34a are arranged in the connecting piece 34, and a terminal plate 41 (described later) is caulked and fixed to each pair of protrusions 34a.
[0024]
The terminal unit 40 includes a terminal plate 41 and a release button 60. As shown in FIG. 8A, the terminal plate 41 is hung from the substantially L-shaped main piece 42 and the narrow end of the main piece 42 to the rear (downward in FIG. 8B, the same applies hereinafter). A contact piece 43, a substantially J-shaped locking piece 44 that hangs backward from the other wide end of the main piece 42, and a fixing piece 45 that protrudes laterally from the side edge of the locking piece 44. It is formed integrally by processing a belt-shaped metal plate having elasticity and bending the tip of the contact piece 43 and the tip of the locking piece 44 so as to intersect. The contact piece 43 is provided with 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. Yes. In addition, the locking piece 44 located on the inner side with respect to the contact piece 43 is provided with a locking portion 44a that presses the electric wire toward the contact portion 43a and bites into a part of the electric wire to prevent it from coming off, A bent portion 44b that is convex in a direction away from the electric wire (contact piece 42) is provided at a position behind the locking portion 44a. As shown in FIG. 8C, the width dimension of the contact piece 43 is set to about half of the width dimension of the locking piece 44. Further, the fixed piece 45 is provided with an insertion hole 45a through which a pair of projections 34a arranged in the connection piece 34 of the blade receiver 31 are inserted, and the projection 34a inserted through the pair of insertion holes 45a is provided. The fixing piece 45 is fixed to the connecting piece 34 of the blade receiver 31 by caulking. A blade receiving block 30 including a pair of terminal plates 41 and a 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.
[0025]
An electric wire insertion hole 11 is provided in 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 locking piece 44 through the electric wire insertion hole 11, the locking portion 44 a of the locking piece 44 bites into the electric wire 101, thereby pulling the electric wire 101. The electric wire 101 is elastically brought into contact with the contact portion 43a of the contact piece 43 by the spring force of the locking piece 44, and the electric wire 101 is pressed toward the locking piece 44 by the pair of pressing portions 43b and 43c. The pressing force of 44a and a pair of pressing parts 43b and 43c balances, and the electric wire 101 is pinched. However, the pressing portion 43c closer to the main piece 42 is chamfered on the surface in contact with the electric wire 101 to increase the contact area.
[0026]
By the way, the terminal part in a prior art example is comprised with the quick-connection terminal apparatus which consists of a terminal board and a lock spring, and the terminal board was formed with the metal material which does not have a spring property. Therefore, as shown in FIG. 84 (a), when the electric wire 101 is inserted in a normal state straight with respect to the terminal plate 302a and the lock spring 303, the contact area between the terminal plate 302a and the electric wire 101 is sufficiently large. However, when the electric wire 301 is inserted with an inclination with respect to the terminal plate 302a and the lock spring 303 as shown in FIG. 5B, 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 this embodiment, the electric wire 101 is pressed from both sides (opposite directions) by the two pressing parts 43b and 43c of the contact piece 43 and the locking part 44a of the locking piece 44 as described above. Therefore, even if the electric wire 101 is inclined and inserted, the pressing force and the locking portion by the two pressing portions 43b and 43c 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 by 44a can be balanced, and the connection state of the terminal plate 41 and the electric wire 101 can be stabilized regardless of the insertion state of the electric wire 101. Further, 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 in a balanced manner between the contact piece 43 and the locking piece 44. The settling of the locking piece 44 can be suppressed. Moreover, in the present embodiment, the contact portion 43a, the pressing portions 43b and 43c, and the locking portion 44a, which are connection means for connecting the electric wire 101, are integrally formed with the terminal plate 41 by a metal plate having elasticity, so that it is conventional. 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 those requiring two parts of the terminal plate and the lock spring.
[0027]
Here, in the present embodiment, the bent portion 44b is provided in the locking piece 44 of the terminal plate 41. For example, as shown in FIG. If an attempt is made to make the position of the locking portion 44a the same without providing it, the biting angle of the locking portion 44a becomes small and the biting into the electric wire becomes weak. On the other hand, if an attempt is made to place the locking portion 44a at the same position and the same angle, the length of the locking piece 44 is shortened as shown in FIG. turn into. Therefore, the occurrence of such a problem can be prevented by providing the bent portion 44b in the lock piece 44, and the spring property of the lock piece 44 is sufficiently secured, and at the same time, the angle of biting into the electric wire of the lock portion 44a is increased. Thus, the electric wire can be reliably prevented from coming off.
[0028]
Further, if the tip portion where the locking portion 44a of the locking piece 44 is formed is tapped by a press or the like, the surface hardness increases although the thickness of the locking portion 44a is slightly reduced as shown in FIG. Deterioration of the retaining performance can be prevented by reducing the abrasion caused by the insertion. Furthermore, as shown in FIG. 16, if the surface of the locking portion 44a that bites into the electric wire 101 is struck, the number of parts that come into contact with the electric wire 101 increases due to the level difference that occurs in the locking portion 44a, and connection reliability can be improved. There is an advantage. In the present embodiment, the pressing portion 43c closer to the main piece 42 chamfers the surface in contact with the electric wire 101. However, the pressing portion 43c does not chamfer the contact surface with the electric wire 101 as shown in FIG. The wire 101 can be more reliably prevented from coming off if the wire 101 is cut into the wire 101 to prevent it from coming off.
[0029]
By the way, as shown in FIG. 18, a stopper rib 14 is provided in the vicinity of the wire insertion hole 11 on the bottom surface of the body 10, and when the wire 101 is inserted, the tip of the contact piece 43 is applied to the stopper rib 14 and the contact piece 43 is bent. If the amount is regulated, the contact piece 43 can be prevented from being excessively bent and plastically deformed. Moreover, if the position of the stopper rib 14 is set to a position at which the deflection of the contact piece 43 can be restricted at a position where the contact surface of the contact portion 43a is substantially parallel to the insertion direction of the electric wire 101, the stopper rib 14 is formed as shown in FIG. In the regulated state, the contact area between the contact portion 43a and the electric wire 101 is the largest, that is, there is an advantage that the contact reliability can be improved because the surface contact can be achieved.
[0030]
Further, in the present embodiment, the contact piece 43 and the locking piece 44 are formed integrally with the terminal plate 41, but the contact piece 43 in which the electrical conductivity is relatively important and the spring property is relatively important. You may comprise the locking piece 44 with another 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 locking piece 44 is formed are provided on the main piece 42. The terminal plate 41 may be configured by coupling the first and second members 41A and 41B by penetrating the protrusion 42a through a through-hole 44c provided in the locking piece 44. Thus, the first member 41A on which the contact piece 43 is formed uses a metal material having excellent electrical conductivity, and the second member 41B on which the locking piece 44 is formed is made of metal material having excellent springiness. 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.
[0031]
By the way, the release button 60 which comprises the terminal part 40 with the terminal board 41 is arrange | positioned in each storage chamber 13. As shown in FIG. The release button 60 is made of a synthetic resin molded product. As shown in FIGS. 1 and 9, as shown in FIGS. 1 and 9, a substantially P-shaped operation unit 61, a drive unit 62 protruding from one end on one side of the operation unit 61, An arm portion 63 projecting sideways from the other end on the side surface and a pushing projection 64 projecting from the tip of the arm portion 63 toward the drive unit 62 are integrally formed. The arm part 63 is formed in a width dimension narrower than the width dimension of the operation part 61 (see FIG. 9C). In addition, the drive unit 62 has a larger amount of protrusion from the operation unit 61 than the arm unit 63, and the inner side surface (the lower surface in FIG. 9B) facing the arm unit 63 has a lower side and one side. A recess 62a is formed to be open. On the bottom surface of the recess 62a facing the arm portion 63, an inclined surface 62b is formed that inclines in a direction gradually moving away from the arm portion 63 from the tip toward the operation portion 61. A protrusion 65 having a substantially trapezoidal cross section is provided on the outer side surface (the upper side surface in FIG. 9B) of the distal end portion of the drive unit 62.
[0032]
On the other hand, a pair of longitudinal grooves 15 communicating with the respective storage chambers 13 are juxtaposed on both side surfaces of the body 10 in the longitudinal direction, and a release button 60 is provided so that the operating portion 61 is inserted into the longitudinal grooves 15. Arranged in each storage chamber 13 in the body 10. Here, the release button 60 faces the portion where the arm portion 63 does not face the contact piece 43 in the locking 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 portion 62. In addition, the operation unit 61 is movably disposed in the storage chamber 13 so as to protrude from the vertical groove 15 so as to be able to advance and retreat. In addition, since the width dimension of the contact piece 43 is made narrower than the width dimension of the locking piece 44 as already demonstrated, the opposing area of the arm part 63 and the locking piece 44 can be taken widely. Yes. Also, return springs 70 that return the release button 60 to the position when the electric wire is not connected (non-connected position) by elastically urging the operation portion 61 in a direction protruding from the vertical groove 15 are stored in each storage chamber 13. Has been.
[0033]
As shown in FIG. 10, the return spring 70 has a spring piece 71 whose front end is bent at a substantially right angle and its rear end is bent in a substantially square shape, and the front end of the spring piece 71 from both side edges of the rear end of the spring piece 71. A pair of fixing portions 72 protruding to the side are integrally formed. As shown in FIG. 20, the fixing portion 72 is bent in a substantially U shape, and sandwiches the fixed portion 46 formed of a notch provided in the vicinity of the main piece 42 in the locking piece 44 of the terminal plate 41 as shown in FIG. 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 portion of the spring piece 71 is held and returned. The spring 70 is permanently fixed to the terminal board 41. Further, if the release button 60 is disposed in the storage chamber 13, the tip of the spring piece 71 of the return spring 70 abuts on the tip of the drive part 62 of the release button 60, and the spring force of the spring piece 71 does not connect. The release button 60 is elastically biased in a direction to return to a position (a position where the operation unit 61 protrudes from the longitudinal groove 15 of the body 10). Note that the release button 60 is prevented from being detached from the body 1 by bringing the drive unit 62 into contact with the inner wall surface of the cover 20.
[0034]
Thus, when an electric wire is inserted between the contact piece 43 and the locking piece 44 of the terminal plate 41 through the electric wire insertion hole 11 and connected to the terminal portion 40 (terminal plate 41), the tip of the electric wire is moved to the release button 60. The driving unit 62 comes into contact with the inclined surface 62b formed in the recess 62a of the driving unit 62, the direction in which the driving unit 62 approaches the cover 20 by the insertion force of the electric wire (the force acting in the insertion direction of the electric wire), and the operation unit 61 is the body. The release button 60 is pushed and driven in the direction of entering 1. As a result, in a state where the electric wire is connected to the terminal portion 40, a part of the operation portion 61 moves to a position (connection position) where the operation portion 61 is drawn into the inside of the container body 1. That is, whether 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 (non-connection position or connection position). It is possible to confirm whether or not. Further, when the electric wire is connected, the release button 60 is pushed up toward the cover 20 by the insertion force of the electric wire as described above, but there is a step on the inner bottom surface of the cover 20 facing the drive unit 62 of the release button 60. (Not shown) is formed, and when the protrusion 65 provided on the driving unit 62 gets over the step, a sound (for example, an impact sound such as “click”) is generated, so that the wire is also connected to the terminal by the sound. It can be confirmed that it is connected to the plate 41.
[0035]
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 container body 1 through the longitudinal groove 15 may be pushed with a finger. When the release button 60 is further moved from the connection position into the body 1 by pushing the operation portion 61, the chain of the terminal plate 41 is pushed by the push projection 64 projecting from the tip 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 this embodiment, the distal end of the locking portion 44a is pressed by the pushing projection 64 that protrudes from the distal end of the arm portion 63 of the release button 60. Therefore, the locking piece 44 is removed from the locking portion 44a. Compared with the case of pressing at a distant position, it is possible to prevent the locking portion 44a (locking piece 44) from being deformed (plastically deformed) when releasing the connection state of the electric wire.
[0036]
In the conventional quick-connect terminal device, the wire must be pulled out while operating the release button using a tool, so hold the wiring fixture 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 blocked, and it is difficult to pull out the wire from the wire insertion hole. On the other hand, in the present embodiment, the chain that is biting into the electric wire by pressing the operation portion 61 of the release button 60 exposed on the side surface of the body 1 with the finger (for example, thumb) of the hand holding the body 1. The lock 44a can be separated from the electric wire, the holding of the container 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 compared with the conventional quick connection terminal device Thus, the wire can be easily removed. If 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. There is no need to return to the non-connection position, and the wire can be inserted and removed as many times as necessary.
[0037]
Here, the release button 60 is prevented from being detached from the longitudinal groove 15 of the container 1 in the drive unit 62 and is in a free state on the arm 63 side, and therefore, the release button 60 is used with the drive unit 62 in the retaining position as a fulcrum. Compared to the case where the arm 63 is prevented from coming off and only parallel movement is possible, the amount of protrusion of the release button 60 in the non-connection position is increased and visibility and operability are increased. Can be increased. Further, as shown in FIG. 9, the surface 62 c with which the tip of the spring piece 71 of the return spring 70 in the drive portion 62 of the release button 60 abuts is shaped to be recessed in the biasing direction of the return spring 70. As shown in FIG. 6, even when the movement amount of the release button 60 is the same as in the case where the contact surface 62c is flat, the displacement amount of the return spring 70 can be reduced, and the sag of the return spring 70 can be reduced. (See FIG. 21 (b)).
[0038]
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. Compared with the case where the blade receiving block 30 is temporarily fixed by being inserted and locked in the locking hole 73 provided in the return spring 70, the return spring 70 remains connected to the terminal plate 41 even if a slight impact is applied when the blade receiving block 30 is assembled into the body 10. There is an advantage that workability can be improved because it is difficult to drop off.
[0039]
By the way, a pair of protrusions 16 projecting in the longitudinal direction of the body 10 are provided in the vicinity of the rear end of the longitudinal groove 15 on both side surfaces of the body 10 in the longitudinal direction, and a step is formed between the side surfaces of the body 10. ing. In other words, the operation portion 61 of the release button 60 slightly protrudes from the side surface of the container 1 (body 10) at the connection position, but the protrusion 16 is provided between the side surface of the body 10 as described above. Since the step is formed, the operation portion 61 of the release button 60 in the non-connection position as shown in FIG. 23 when viewed from the bottom surface side of the body 1 (body 10) where the wire insertion hole 11 is opened. The operation portion 61 of the release button 60 at the connection position is hidden behind the projection 16 and can not be seen, whereas the release button 60 when viewed from the bottom surface of the container 1 is visible. It becomes possible to easily determine the connection state of the electric wire depending on whether or not the visual approval is given.
[0040]
By the way, an insertion portion 24 into which a pair of plug blades provided in one plug can be inserted is formed on the front wall of the cover 20 for one port. The insertion portion 24 includes insertion openings 25 that open at portions corresponding to the blade receiving springs 32 and 33 of each blade receiver 31, and each insertion opening 25 is a flat plug blade insertion into which a flat flat plug blade is inserted. The opening 25a and the pin-type plug blade insertion port 25b into which a round pin-shaped pin-type plug blade is inserted are formed into a shape communicating with each other. That is, the flat type plug blade insertion port 25a has a rectangular shape, and has a shape in which the circular pin type blade insertion port 25b communicates with one side edge of the middle portion in the longitudinal direction. Further, the distance between the centers of the pin-type plug blade insertion openings 25b is larger than the distance between the centers of the flat-type plug blade insertion openings 25a. The flat type plug blade inserted into the flat type plug blade insertion port 25a is sandwiched between the side surface of the blade receiving spring 32 and the blade receiving spring 33, and the pin type plug blade inserted into the pin type plug blade insertion port 25b is It is clamped between the pair of blade receiving springs 32.
[0041]
Next, a structure for assembling the container 1 by combining the body 10 and the cover 20 will be described. That is, in this embodiment, the body 10 and the cover 20 are coupled by fitting the assembly member 50 to the fitting portions 6 and 7 provided on both the body 10 and the cover 20 to thereby connect the body 10 and the cover 20. It is designed to be assembled.
[0042]
On both side surfaces facing the longitudinal direction of the body 10, a rectangular fitting portion 6 projects from the center portion sandwiched between a pair of longitudinal grooves 15 as shown in FIG. A concave groove 8 is formed in the upper part of FIG. On the other hand, a pair of insertion grooves 21 communicating with the longitudinal grooves 15 of the body 10 are provided on both side surfaces in the longitudinal direction of the cover 20, and the body 10 is fitted from the center portion sandwiched between the insertion grooves 21. A fitting part 7 having the same shape and the same dimensions as the joint part 6 is provided in a protruding manner. In the state where the cover 20 is abutted against the opening surface of the body 10, the fitting portions 6 and 7 are arranged in a row with the concave groove 8 interposed therebetween.
[0043]
The assembly member 50 is made of a synthetic resin molded product having elasticity. As shown in FIG. 6, the fitting holes 51 and 51 for fitting with the fitting portions 6 and 7 are provided in the front-rear direction of the container 1 (the vertical direction in FIG. 1). ) And a strip-shaped vertical piece 52 having a strip-shaped horizontal piece 53 having a central portion connected to the tip of the vertical piece 52, and a vertical piece facing the container 1. A locking protrusion 54 having a locking claw 54a at the tip is projected from the substantially central portion sandwiched between the fitting holes 51 on the back side of 52. Further, on the side surface of the horizontal piece 53, a mounting plate for embedding and installing the embedded wiring device in the construction surface, or a flash plate having a wiring device mounting structure (hereinafter simply referred to as “plate”). A pair of attachment portions (attachment claws) 55 are provided in a projecting manner so as to engage with the engagement holes provided in FIG.
[0044]
On the other hand, the cover 20 has a locked portion 26 that is locked by a locking claw 54 a provided at the distal end portion of the locking projection piece 54 of the assembly member 50 that is inserted from the concave groove 8 of the body 10, in the vicinity of both ends in the longitudinal direction. (See FIG. 5 (d)). A guide surface 27 is formed in the vicinity of the fitting portion 7 on the back side of the cover 20 so as to be inclined inward toward the rear and guide the locking claw 54 a to the locked portion 26.
[0045]
Thus, in order to assemble the body 1 by joining the body 10 and the cover 20, as shown in FIG. 24 (a), the locking protrusions 54 in a state where the body 10 and the cover 20 are abutted on the opening surface side. When the assembly member 50 is pressed toward the opposite side surfaces facing the longitudinal direction of the container body 1 so as to be inserted into the concave groove 8, as shown in FIG. The fitting portions 6 and 7 of the body 10 and the cover 20 are fitted to each other so that the body 10 and the cover 20 are coupled, and at the same time, a locking claw 54 a provided at the tip of the locking protrusion 54 is a guide for the cover 20. The engaging protrusion 54 bends backward (toward the body 10) along the surface 27, and the engaging claw 54a eventually engages with the engaged portion 26 of the cover 20, whereby the fitting portion 6 of the assembly member 50 is engaged. , 7 can be prevented from falling off. In addition, in order to bend the locking protrusion 54 smoothly rearward, as shown in FIG. 24, an inclined surface 10a inclined substantially parallel to the guide surface 27 is provided at a position facing the guide surface 27 of the body 10. desirable.
[0046]
Since the body 10 and the cover 20 are coupled using the synthetic resin assembly member 50 as described above, the assembly frame and the charging unit (the blade receiving block 30) are connected as in the case of using a metal assembly frame. There is an advantage that design restrictions due to the insulation distance are reduced, and that the degree of freedom in design such as selection of the material forming the container 1 and the thickness dimension of the container 1 is increased. 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. Compared with the case where the joint portion is fitted in the same fitting hole, rattling of the assembly member 50 due to the dimensional error of the fitting portions 6 and 7 can be suppressed, and the body 10 and the cover 20 can be firmly coupled. it can. Further, the assembly member 50 is reduced in size by providing the locking protrusion 54 at a portion of the vertical piece 52 of the assembly member 50 sandwiched between the fitting holes 51. In addition, as shown in FIG. 25, the to-be-latched part 26 and the guide surface 27 may be provided in the body 10, and the direction of the latching claw 54a provided in the latching protrusion 54 of the assembly member 50 may be reversed.
[0047]
By the way, a pair of doors 160, 160, a pair of leaf springs 170, 170, and an inner frame 180 are housed inside the cover 20. As shown in FIG. 11, the middle frame 180 includes a pair of through holes 181 and 181 and a groove 182 positioned between the through holes 181 and 181, and a projection (see FIG. (Not shown) and can be temporarily fixed to the cover 20. The pair of doors 160 and 160 and the pair of leaf springs 170 and 170 are disposed between the middle frame 180 and the inner surface of the cover 20.
[0048]
A pair of doors 160 formed in the same shape includes wing pieces 161 and 161 projecting on both sides as shown in FIG. 12, and each wing piece 161 and 161 has a pair of inclined surfaces 162 having different inclination angles. , 163 are juxtaposed. In the doors 160 and 160, a central portion 164 sandwiched between the blade pieces 161 and 161 is accommodated in the groove 182 of the middle frame 180, and leaf springs 170 and 170 are arranged between the outer surface side and the inner wall of the cover 20. In this state, the doors 160 and 160 are accommodated in the cover 20, and the doors 160 and 160 come into contact with each other by urging by the leaf springs 170 and 170.
[0049]
The cover 20 containing the inner frame 180 and the doors 160, 160 is coupled to the body 10 using the assembly member 50. When the body 10 is assembled by coupling the body 10 and the cover 20 with the assembly member 50, The blade receiver 31 of the blade receiver block 30 is positioned in the through hole 181 of the intermediate frame 180, and the partition wall 180a of the intermediate frame 180 is engaged with the partition wall 12 of the body 10 to separate the two blade receivers 31 from each other. ing. The doors 160 and 160 are located between the insertion opening 25 of the cover 20 and the blade holder 31.
[0050]
That is, the wing pieces 161 of one door 160 are slightly covered with the wing pieces 161 of the other door 160 so that no gap is generated between the doors 160 and 160. The closed doors 160 and 160 are positioned between the insertion opening 25 and the blade receiver 31 to hide the blade receiver 31 located at the back of the insertion opening 25. It will be.
[0051]
In this state, if the plug blades of the plugs are inserted into both the insertion ports 25, the plug blades press the inclined surfaces 162 (or 163) of the blades 161 and 161 of the doors 160 and 160, thereby making the door 160 the leaf spring 170. The blade is inserted into the blade holder 31 for this purpose. When the plug is removed, the doors 160 and 160 are restored by the urging force of the leaf springs 170 and 170 to close the insertion port 25 again.
[0052]
In order to construct the outlet of the present embodiment configured as described above on a construction surface such as a wall surface, a 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 applied with a good appearance. The synthetic resin plate frame 110 has an insulating property, and the left end portions and the right end portions of the pair of frame pieces 113a and 113b are continuously and integrally joined by the horizontal pieces 112, thereby exposing the front surface of the body 1. The rectangular opening window 111 to be formed is formed in a vertically long rectangular frame shape having a central portion. On the rear surface side of both side edges along the longitudinal direction of the opening window 111, a strip-like fixed beam portion 114 and a movable beam portion 115 are provided so as to face each other.
[0053]
The movable beam portion 115 is continuously and integrally connected to the frame piece 113b via a connecting 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 piece 113b via a bridge portion 117 in the orthogonal direction. Moreover, the part between each connection part 116 and each bridge | bridging part 117 and between both the bridge | bridging parts 117 becomes the slit 118a-118c penetrated in the front and back. The synthetic resin forming the plate frame 110 is flexible, and the movable beam portion 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 in a straight line. In the frame piece 113b, in the vicinity of each bridge portion 117, long hole-like grooves 119 penetrating the front and back are provided so that the movable beam portion 115 is flexible even at a portion corresponding to the bridge portion 117.
[0054]
On the other hand, on one surface facing the opening window 111 in the fixed beam portion 114 and the movable beam portion 115, there are six holding grooves 114a as holding portions that engage with the mounting claws 55 projecting in pairs from the assembly member 50. 115a (see FIG. 26) are provided at equal pitches. 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. Also, contact portions 114d and 115d that contact the front surface of the horizontal piece 53 of the assembly member 50 are formed at the bases of the fixed beam portion 114 and the movable beam portion 115 so that the container body 1 does not fall forward from the plate frame 110. ing. That is, the front surface of the horizontal piece 53 of the assembly member 50 contacts the contact portions 114d and 115d (see FIG. 28), and the rear surface of the mounting claw 55 is locked to the holding grooves 114a and 115a. Attached to the frame 110.
[0055]
Here, the mounting claws 55 of the container 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 the surface facing the opening window 111 of the fixed beam portion 114 and the movable beam portion 115. At this time, in order to guide each mounting claw 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 side are provided. That is, in order to attach the container body 1 to the plate frame 110 as shown in FIGS. 28A to 28C, the attachment claws 55 of the assembly member 50 fitted to one side surface of the container body 1 are attached to the fixed beam portion 114. Engage with the holding groove 114a, and 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, it is fitted to the other side of the body 1 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 portion 115, and the mounting claw 55 can be easily engaged with the holding groove 115a.
[0056]
On the other hand, an instrument removal hole 114c that penetrates the front and back of the plate frame 110 is formed between each pair of adjacent holding grooves 114a at the base of the fixed beam portion 114 so that the body 1 is attached to the plate frame 110. While wearing, insert the tip of a screwdriver or removal tool into the instrument removal hole 114c and push the body 1 toward the movable beam 115 with the tip of the jig. Thus, the movable beam 115 can be bent, and the engagement state between the holding groove 114a on the fixed beam 114 side and the attachment claw 55 of the container 1 can be released, and the container 1 can be removed from the plate frame 110. It is like that.
[0057]
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 a pair of attachment claws 55 are formed, it is possible to attach up to three of the above-mentioned container 1 to the plate frame 110. In other words, the plate frame 110 is for three pieces, and the container body 1 whose attachment dimensions are set so that a maximum of three plate frames 110 can be attached to the three plate frame 110 is referred to as a unit dimension (hereinafter referred to as “one module”). It will be referred to as the container 1 of the above. In this way, by defining the relative mounting dimensions of the container 1 and the plate frame 110, it is possible to attach an arbitrary number of containers 1 in the range of 1 to 3 to the plate frame 110. Become. The pitch of the holding grooves 114a, 115a provided in the fixed beam portion 114 and the movable beam portion 115 is equal to the pitch of the mounting claws 55 projecting from the side surface of the module body 1 of one module, and as described above, Since the holding grooves 114a and 115a are equidistant, the plate frame 110 is formed using any two holding grooves 114a and 115a adjacent to the fixed beam portion 114 and the movable beam portion 115 in the case of the one-module body 1. Can be attached to.
[0058]
Incidentally, a recess 131 is formed in the front surface of the intermediate portion of each horizontal piece 112 of the plate frame 110. In each of the recesses 131, there are a long hole-like box hole 132 through which a box screw for attaching the plate frame 110 to the embedding box is inserted, 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 metal fitting hole 134 for engaging a scissor metal fitting (not shown) used when attaching to a wall panel or the like forming the construction surface are provided.
[0059]
Further, at the four corners of the plate frame 110, decorative plate locking holes 135 for locking the locking protrusions 123 protruding from the rear surface of the decorative plate 120 are provided. The decorative plate 120 can be detachably attached so as to cover the front surface of the plate frame 110 by inserting and locking.
[0060]
The decorative plate 120 is formed using an insulating synthetic resin, and has a rectangular main portion 121 that covers the front surface of the plate frame 110, and the rear of the main portion 121 from the periphery to the entire periphery. It is formed in a substantially box shape in which the side wall 122 projecting in a continuous manner is formed. The locking projections 123 are projected from the 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 1 attached to the plate frame 110 is provided at the center of the main part 121.
[0061]
The distance between the opposing surfaces of the side wall 122 of the decorative plate 120 is larger than the width dimension of the corresponding portion of the plate frame 110. That is, when the decorative plate 120 is attached to the front surface 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 substantially on the construction surface. Abut. As a result, the abutment surface between the plate frame 110 and the decorative plate 120 does not protrude forward from the construction surface, and the abutment line between the two is hardly visible from the side surface, improving the appearance. In addition, a plurality 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 and prevent the decorative plate 120 from being displaced relative to the plate frame 110.
[0062]
By the way, on the outer surface of both the frame pieces 113a and 113b of the plate frame 110, there are an inclined surface 113c that inclines so as to protrude outward toward the rear, and an overhang portion 113d that protrudes outward continuously from the inclined surface 113c. Is formed. Further, a rib 125 whose rear end surface comes into contact with the front surface of the overhanging portion 113d protrudes from the inner surface 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 attaching the decorative plate 120 to the plate frame 110, the regulation 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 attachment is easy.
[0063]
A pair of cutout portions 126 are provided on one of the upper and lower side walls 122 of the decorative plate 120. A direction in which a jig (such as a tip of a minus driver) is inserted into the cutout portion 126 to separate the decorative plate 120 from the plate frame 110. When a (forward-facing) 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. . In the frame piece 113b of the plate frame 110, a relief portion 136 that is recessed inward from the inclined surface 113c is provided at a position corresponding to the notch portion 126, and the jig inserted into the notch portion 126 can be escaped and inserted to the back. Thus, it is easy to apply a force when removing the decorative plate 120. Further, a rib 137 thinner than the protruding portion 113 d is extended from the rear surface side end portion of the relief portion 136 to the extent that it does not protrude from the cutout portion 126 of the decorative plate 120. That is, there is a risk of scratching the construction surface by applying a force to the jig that is inserted into the notch 126 with the portion that abuts the construction surface as a fulcrum, but it is inserted into the notch 126 by providing the rib 137. When the jig comes into contact with the rib 137 and the decorative plate 120 is removed from the plate frame 110, the work surface can be prevented from being damaged by the jig.
[0064]
On the rear surface side of the decorative plate 120, protruding strips 128 a to 128 c that are respectively inserted into three slits 118 a to 118 c provided in the plate frame 110 when attached to the plate frame 110 are arranged in a row. Here, the dimension of each protrusion piece 128a-128c is the state inserted in each slit 118a-118c of the plate frame 110, and between the internal peripheral surface of slit 118a-118c, and each protrusion piece 128a-128c. The dimensions are set so that only a slight gap is generated. That is, in a state where the decorative plate 120 is attached to the plate frame 110 to which the container body 1 is attached, the three protrusion pieces 128a to 128c are fitted into the slits 118a to 118c of the plate frame 110, and the slits 118a to 118c Since only a slight gap is generated between the peripheral surface and each of the protrusion pieces 128a to 128c, the movement (flexure) of the movable beam portion 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 abnormally large force is applied, the movement of the movable beam portion 115 is restricted as described above, so that the mounting claws 2 of the body 1 are restricted. And the retaining beams 115a and 114a of the movable beam portion 115 and the fixed beam portion 114 are not easily released.
[0065]
(Embodiment 2)
The first embodiment has one plug portion 24 of a type (so-called universal type) in which both a so-called A type plug having a parallel flat type plug blade and a so-called BS type plug having a parallel pin type plug blade can be connected. Although the module body 1 is provided, in the present embodiment, as shown in FIGS. 29 to 31, the same universal type insertion portion 24 as that of the first embodiment, and a so-called O type ground electrode. The plug part 24 'to which the attached plug is connected is provided in the vessel body 1 of three modules (that is, three times the mounting dimensions of one module). The O-type insertion portion 24 'has three flat plug blade insertion holes 25a', 25a ', 25b' into which three flat plug blades including a ground electrode are inserted. The remaining (voltage electrode) flat plug blade insertion ports 25a 'and 25a' are arranged in an inverted C shape on both sides of the flat plug blade insertion port 25b 'into which the blade is inserted.
[0066]
As shown in FIG. 32, the interior of the body 10 is divided into three interior spaces by a plurality of partition walls 12 provided along the longitudinal direction, and an inner frame 260 accommodated in the cover 20 as will be described later. By covering the front surface of the body 10, the internal space of the container 1 is divided into three independent chambers (storage chambers 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.
[0067]
In the body 10, plug blade blocks 30 </ b> A and 30 </ b> B for voltage electrodes are respectively stored in the storage chambers 13 a and 13 b at both ends. The plug blade blocks 30A and 30B are configured such that a blade receiver 31A corresponding to the universal type insertion portion 24 and a blade receiver 31B corresponding to the voltage electrode of the O type insertion portion 24 ′ are coupled to both sides of the terminal plate 41. Configured. However, since the plug blade block 30A stored in one storage chamber 13a and the plug blade block 30B stored in the other storage chamber 13b are in a mirror image relationship, only the plug blade block 30A will be described.
[0068]
The universal type blade receiver 31A has a structure that is substantially the same as that of the blade receiver 31 in the first embodiment. As shown in FIG. 35, a pair of blade receiver springs 32 that sandwich the plug blade at the tip portions facing each other. The U-shaped connecting piece 34 that continuously and integrally connects one side surfaces of the double blade receiving spring 32 and the blade receiving spring 33 that protrudes from the connecting piece 34 and faces the side surface of the double blade receiving spring 32 are provided. In addition, a substantially bowl-shaped leg piece 35 extends from the side edge of the base end side of one blade receiving spring 32, and a pair of caulking projections 36 a are arranged at the tip of the leg piece 35. Is provided.
[0069]
As shown in FIG. 36, the O-type blade holder 31B for the voltage electrode has a pair of blade receiving springs 32 that sandwich the plug blades at the tip portions facing each other and one side surface of the both blade receiving springs 32 continuously integrated. A U-shaped connecting piece 34 coupled to the belt, a belt-like leg piece 35 extending from the side edge on the base end side of one blade receiving spring 32, and a pair of caulking projections 36a arranged in a row. And a coupling piece 36 provided at the tip of 35.
[0070]
As shown in FIG. 37, the terminal plate 41 includes a substantially T-shaped main piece 42, a pair of contact pieces 43 that hang downward from both side edges on one narrow side of the main piece 42, and the width of the main piece 42. A pair of substantially J-shaped locking pieces 44 that hangs backward from both side edges on the other end side of the thick, and a fixing piece (joining part) 45 that protrudes laterally from the side end edges of both chain locking pieces 44, It is formed integrally by processing a belt-shaped metal plate having elasticity and bending the tip of the contact piece 43 and the tip of the locking piece 44 so as to intersect each other. That is, the terminal plate 41 in the present embodiment has a shape in which the two terminal plates 41 in the first embodiment (each terminal plate 41 is in a mirror image relationship) are connected by the main pieces 42, and the contact piece 43. Is provided with a contact portion 43a and a pair of pressing portions 43b and 43c, and the locking piece 44 is provided with a locking portion 44a and a bending portion 44b. The terminal board 41 in the present embodiment is also operated by the release button 60 by setting the width dimension of the contact piece 43 to be narrower (approximately half) than the width dimension of the locking piece 44 as in the first embodiment. Space is secured. Further, the fixed piece 45 is provided with an insertion hole 45a through which a pair of caulking projections 36a arranged in a row on the coupling piece 36 of the blade receivers 31A and 31B is inserted, and is inserted into the pair of insertion holes 45a. By caulking the caulking projection 36a, the coupling piece 36 of the blade receiver 31A is fixed to one fixed piece 45, and the coupling piece 36 of the blade receiver 31B is fixed to the other fixed piece 45, whereby the blade receiving block 30A is fixed. Composed. Thus, in this embodiment, it is a coupling part for coupling a specific part (blade holder 31A, 31B in this embodiment) that is a part that is electrically connected to the electric wire via the terminal plate 41 and that corresponds to the type of wiring device. Since the (fixed piece 45) is provided on the terminal board 41, the terminal board 41 can be used in common even if the specific part is a part of a wiring device other than the outlet, and the cost can be reduced. In addition, the joining method of the fixing piece 45 and the joining piece 36 is not limited to the above-mentioned caulking, and can cope with various joining methods such as adhesion and welding.
[0071]
Thus, the voltage electrode blade receiving blocks 30A and 30B configured as described above store the blade receiving portions 31A and 31B in the sections at both ends in the longitudinal direction as shown in FIG. It is stored in the storage chambers 13a and 13b at both ends of the body 10 so as to be stored in the central section in the longitudinal direction.
[0072]
On the other hand, a plug blade block 30C for an O-type ground electrode is housed in the central storage chamber 13c in the body 10. The grounding electrode plug blade block 30C is configured by connecting a grounding electrode blade holder 31C corresponding to the O-type insertion portion 24 'to the terminal plate 41'.
[0073]
As shown in FIG. 38, the O-type ground electrode blade receiver 31C has a pair of blade springs 32 sandwiching the plug blades at the tip portions opposed to each other and the rear edge of the double-blade blade spring 32 continuously integrated. A connecting piece 34 to be coupled, a belt-like leg piece 35 extending from the side edge of the connecting piece 34 and bent in a substantially bowl shape, a caulking projection 36a, and a positioning hole 36b are arranged in a row to form the leg piece 35. And a coupling piece 36 provided at the tip.
[0074]
The terminal plate 41 ′ is substantially the same as the shape obtained by removing the fixed piece 45 from the voltage electrode terminal plate 41, and includes a main piece 42, a pair of contact pieces 43 and a locking 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 locking piece 44 is provided with a locking portion 44a and a bending portion 44b. The main piece 42 has a caulking hole 42a through which a caulking protrusion 36a provided in the coupling piece 36 of the blade receiver 31C is inserted, and a positioning protrusion 42b fitted into the positioning hole 36b. It is installed.
[0075]
Accordingly, the positioning projections 42b projecting from the main piece 42 of the terminal plate 41 'are fitted into the positioning holes 36b penetrating the coupling piece 36 of the blade receptacle 31C, and the terminal plate 41' and the blade receptacle 31C are fitted. , And the caulking protrusion 36a projecting from the coupling piece 36 is inserted into the caulking hole 42a penetrating the main piece 42 and caulked to thereby fix the main piece 42 and the blade of the terminal plate 41 '. The blade receiving block 30C is configured by combining the coupling pieces 36 of the receiving 31C.
[0076]
Therefore, 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 receiving 31C on the lower side in the drawing as shown in FIG. Here, in the structure in which two holes 42b for caulking and positioning are arranged in the main piece 42 of the terminal plate 41 as shown in FIG. 40 (b), the interval between the recesses for processing for providing the holes 42b. May become so narrow that the strength of the main piece 42 may decrease, and the size of the main piece 42 must be increased in order to ensure the strength. On the other hand, in the present embodiment, the caulking projection 36a and the positioning hole 36b are provided in the coupling piece 36 of the blade receiver 31C, and the caulking hole 42a and the positioning projection 42b are provided in the main piece 42 of the terminal plate 41. Therefore, the gap between the caulking hole 42a and the positioning projection 42b can be widened to prevent the strength reduction without increasing the size of the main piece 42 (see FIG. 40A).
[0077]
In this embodiment, the terminal block 41 and the blade receivers 31A, 31B formed separately are combined to form the blade receiver blocks 30A, 30B. However, as shown in FIG. 41, the blade receivers 31A, 31B If the terminal plate 41 is integrally formed by processing a metal member, there is an advantage that a connecting 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 are connected to the rear edge, that is, the connecting piece 34 faces the tip of the plug blade in the plug blade insertion direction. 42B and FIG. 42C, 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 blades. However, in the former structure, the spring performance of the blade receiving spring 32 is excellent compared to the latter structure, and in the latter structure, compared to the former structure, so-called plate cutting when punching from a metal member is excellent. In view of necessary performance, any structure may be selected and combined as appropriate. Further, as shown in FIG. 42A, the blade receiving spring 33 of the universal type blade receiver 31A may be connected to the side edge of the one blade receiving spring 32 in the former structure.
[0078]
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 penetrated at substantially the center in the longitudinal direction of the bottom wall of the body 10. If the electric wire is inserted between the contact piece 43 and the lock piece 44 through the lock piece 44a of the lock piece 44, 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 elastically contacts the contact portion 43a of the contact piece 43 by the spring force, and further, the electric wire is pressed toward the locking piece 44 by the pair of pressing portions 43b and 43c, and the locking portion 44a and the pair of pressing portions 43b and 43c The pressing force is balanced and the electric wire is pinched.
[0079]
Here, in the terminal plates 41 and 41 ′, each pair of contact pieces 43 and locking pieces 44 are provided separately at both ends of the main piece 42, and each pair of the wire insertion holes 11 also corresponds to this. They are separated by a predetermined distance. Therefore, when two electric wires are connected to each of the terminal plates 41 and 41 ′ for the feed wiring, the adjacent two electric wire insertion holes 11 are separated, so that the electric wires can be reliably connected one by one. It is. On the other hand, as shown in FIG. 43, the two contact pieces 43 are arranged close to the center of the terminal plates 41 and 41 ′, and two electric wires corresponding to the two contact pieces 43 as shown in FIG. If the insertion hole 11 is partially communicated and provided in the body 10, the advantage is that two electric wires can be inserted together into the electric wire insertion holes 11 and connected simultaneously to the terminal plates 41 and 41 ′. There is.
[0080]
By the way, in this embodiment, the release button 80 that constitutes the terminal portion 40 for the voltage electrode together with the terminal plate 41 and the release button 200 that constitutes the terminal portion 40 for the ground electrode together with the terminal plate 41 ′ have different shapes. Is formed. However, as will be described later, the release buttons 80 or 200 arranged adjacent to each other have a mirror image relationship, and only one shape will be described below.
[0081]
The release button 80 for the voltage electrode is made of a synthetic resin molded product, and is extended in the longitudinal direction of the operation portion 81 from one end side of the operation portion 81 and the operation portion 81 as shown in FIG. A drive part 82 protruding in the short direction and an arm part 83 protruding in the same direction as the drive part 82 from the vicinity of the other end of the operation part 81 are integrally formed. The arm portion 83 is formed to have a width dimension smaller than the width dimension of the operation portion 81, and a push projection 84 that projects toward the drive portion 82 is integrally formed at the tip thereof. In addition, the drive unit 82 has a larger amount of protrusion from the operation unit 81 than the arm unit 83, and a recess 82 a that opens downward and on one side surface is formed on the inner surface facing the arm unit 83. Yes. On the bottom surface of the recess 82a facing the arm portion 83, an inclined surface 82b is formed that inclines in a direction gradually moving away from the arm portion 83 from the tip toward the operation portion 81. A positioning portion 85 that protrudes on the opposite side of the arm portion 83 is provided on the outer surface of the tip portion of the driving portion 82.
[0082]
On the other hand, a pair of longitudinal grooves 15 communicating with the respective storage chambers 13a and 13b are arranged in parallel on both side surfaces of the body 10 in the short direction, and the operation portion 81 is inserted into the longitudinal grooves 15 to be released. A button 80 is disposed opposite to the terminal plate 41 in each of the storage chambers 13a and 13b in the body 10 (see FIG. 34). Here, the release button 80 is opposed to a portion where the arm portion 83 does not face the contact piece 43 in the locking piece 44 of the terminal plate 41, and the wire insertion hole 11 of the body 10 and the recess 82 a of the drive portion 82 face each other. In addition, the operation portion 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 retract. In addition, since the width dimension of the contact piece 43 is made narrower than the width dimension of the locking piece 44 as already demonstrated, the opposing area of the arm part 83 and the locking piece 44 can be taken widely. Yes. A return spring 90 that elastically biases the operating portion 81 in a direction protruding from the longitudinal groove 15 and returns the release button 80 to a position (non-connected position) when no electric wire is connected is provided in each of the storage chambers 13a and 13b. It is stored in.
[0083]
As shown in FIG. 46, the return spring 90 has a pair of spring pieces 91 whose front ends are bent at a substantially right angle and whose rear end portions are bent into a substantially square shape, and the front ends from one side edge of the rear end portion of the spring pieces 91. A fixing portion 92 protruding to the side and a connecting piece 92 for connecting the spring piece 91 at the side edge of the rear end portion are integrally formed. As shown in FIG. 47, the fixing portion 92 has a substantially U-shaped tip, and sandwiches a fixed portion 46 formed of a notch provided in the vicinity of the main piece 42 in the locking piece 44 of the terminal plate 41. The return spring 90 is fixed (temporarily fixed) to the terminal plate 41. When the blade receiving blocks 30A and 30B with the return spring 90 temporarily fixed to the terminal plate 41 are stored in the storage chambers 13a and 13b, the terminal plate 41 comes into contact with the inner wall of the body 10 and the rear end portion of the spring piece 91 is narrow. The return spring 90 is permanently fixed to the terminal board 41 (see FIG. 34). Further, if the release button 80 is disposed in the storage chambers 13a and 13b, the tip of the spring piece 91 of the return spring 90 comes into contact with the tip of the drive part 82 of the release button 80, and the spring force of the spring piece 91 The release button 80 is elastically biased in a direction to return to a non-connection position (a position where the operation unit 81 protrudes from the vertical groove 15 of the body 10). Note that the release button 80 is prevented from being detached from the body 1 by bringing the positioning portion 85 provided in the drive 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 ′ which is a rectangular through hole and is paired with the fixed portion 46, and as shown in FIG. 48, a return spring 90 having only one spring piece 91. In the case of using ', the fixed portions 46 and 46' that are paired by the fixing portion 92 of the return spring 90 'are sandwiched and temporarily fixed, so that the two spring pieces 91 and 91 are integrated as a return spring. 90 and the return spring 90 ′ having only one spring piece 91 can be attached to the same terminal plate 41, and the cost can be reduced by sharing parts and the width of the configuration of the wiring device can be widened. .
[0084]
Thus, when an electric wire is inserted between the contact piece 43 and the locking piece 44 of the terminal plate 41 through the electric wire insertion hole 11 and connected to the terminal portion 40 (terminal plate 41), the tip of the electric wire is moved to the release button 80. The drive unit 82 comes into contact with the inclined surface 82b formed in the recess 82a of the drive unit 82, and the direction in which the drive unit 82 approaches the cover 20 and the operation unit 81 are the body by the insertion force of the electric wire (the force acting in the insertion direction of the electric wire). The release button 80 is pushed and driven in the direction of entering 1. As a result, in a state where the electric wire is connected to the terminal portion 40, a part of the operation portion 81 moves to a position (connection position) where the operation portion 81 is drawn into the body 1. That is, whether the operation part 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 part 81 (non-connection position or connection position). It is possible to confirm whether or not.
[0085]
It should be noted that protrusions 16 projecting in the short direction of the body 10 are provided in the vicinity of the rear end of the longitudinal groove 15 on both lateral sides of the body 10 to form a step between the side surfaces of the body 10. Has been. In other words, the operation portion 81 of the release button 80 slightly protrudes from the side surface of the container 1 (body 10) at the connection position, but a step is formed between the side surface of the body 10 by providing the protrusion 16. Therefore, when viewed from the bottom surface side of the container body 1 (body 10) where the wire insertion hole 11 is opened, the operation portion 81 of the release button 80 in the non-connection position appears to protrude outward from the protrusion 16. On the other hand, the operation part 81 of the release button 80 in the connection position is hidden behind the protrusion 16 and cannot be seen, and the connection state of the electric wire is easily determined depending on whether the release button 80 is approved for viewing when viewed from the bottom of the container 1. It becomes possible to distinguish. Further, if the operation unit 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 can be easily recognized.
[0086]
On the other hand, in order to pull out the electric wire connected to the terminal portion 40, the operation portion 81 exposed on the side surface of the body 1 is pushed through the vertical groove 15 with a finger, and further released from the connection position to the inside of the body 1 When the button 80 is moved, the locking protrusion biting into the electric wire is pressed by pressing the distal end of the locking portion 44a of the terminal plate 41 with the pushing projection 84 protruding from the distal end of the arm portion 83 of the release button 80. The wire 44 can be pulled out by bending the locking piece 44 so that the portion 44 is separated from the wire. If the pressing operation of the operation portion 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 portion 81 automatically returns to the non-connection position. In the present embodiment, since the operation unit 81 is provided on one end side of the release button 80 provided with the pushing projection 84, the operation position (operation unit 81) of the release button 80 and the arm unit 83 are The operability of the release button 80 is improved by reducing the amount of operation required to press the locking portion 44a as the distance becomes shorter.
[0087]
By the way, in the present embodiment, when the release button 80 is incorporated into 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 on the terminal plate 41 as shown in FIG. The terminal plate 41 is temporarily fixed by being engaged with the engaging portion 48 formed. At this time, the locking portion 44a of the locking piece 44 facing the engaging portion 48 abuts on the pushing projection 84, and the release projection button 84 is held between the fluorescent portion 48 and the locking portion 44a. 80 is surely temporarily fixed. That is, since the release button 80 is urged by the return spring 90 attached to the terminal board 41, if it is not temporarily fixed in this way, the posture is not stabilized and the assembling workability is reduced. The workability of assembling the release button 80 can be improved by stopping. In addition, a guide surface 84a that is inclined toward the tip away from the operation unit 81 is formed on the surface of the tip of the push projection 84 that faces the operation unit 81 (see FIG. 45). When the portion 84 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 projection 84 is guided toward the locking portion 44a. It is. Then, after the release button 80 is incorporated into the body 10, when the terminal plate 41 is pushed in a direction approaching the drive portion 82 of the release button 80 (upward in FIG. 49B), the engaging portion 48 comes into sliding contact with the guide surface 84a. However, it moves in the anti-engagement direction to disengage from the pushing projection 84, and the temporarily fixed state of the release button 80 with respect to the terminal board 41 is released.
[0088]
On the other hand, the release button 200 for the ground electrode is also made of a synthetic resin molded product, as shown in FIG. 50, a substantially rectangular operation unit 201, and a drive unit 202 that protrudes from one end on one side of the operation unit 201, An arm portion 203 projecting sideways from the other end of the side surface and a pushing projection 204 projecting from the tip of the arm portion 203 toward the drive unit 202 are integrally formed. The arm portion 203 is formed to have a width that is narrower than the width of the operation portion 201 (see FIG. 50B). Further, the drive unit 202 has a larger amount of protrusion 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 that is open to the bottom is formed. On the bottom surface of the recess 202a facing the arm portion 203, an inclined surface 202b is formed that inclines in a direction gradually moving away from the arm portion 203 from the tip toward the operation portion 201. In addition, the surface 202 c with which the tip of the spring piece 91 of the return spring 90 in the drive unit 202 abuts is formed in a shape that is recessed in the biasing direction of the return spring 90. Further, a relief portion 205 that allows the blade receiver 31C of the blade receiving block 30C to escape when it is stored in the storage chamber 13c is recessed on the outer side surface of one end from which the drive unit 202 of the operation unit 201 protrudes. 200 can be prevented from interfering with the blade receiver 31C, and at the same time, the distance between the release button 200 and the blade receiver 31C can be reduced to reduce the size of the container 1 (see FIG. 34).
[0089]
Incidentally, as shown in FIG. 32, on the bottom surface of the body 10, a projecting portion 2 that protrudes rearward is provided at a portion where the wire insertion hole 11 at the center in the longitudinal direction is provided. In other words, a projecting part 3 that protrudes slightly rearward from the projecting part 2 is provided at substantially the center of the bottom surface of the body 10, and the central projecting part 3 penetrates into the storage chamber 13 c in the body 10. An electric wire insertion hole 11 is provided. The protrusions 2 at both ends are formed integrally with the protrusions 16 that protrude from the center of both lateral sides of the body 10. Further, a recessed portion 4 that is recessed inside the body 10 is provided in a portion surrounded by the protruding portions 2 and 3 at the center of the bottom surface of the body 10, and the recessed portion 4 extends from the side facing the recessed portion 4 of the protruding portion 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 so as to face the terminal plate 41 ′ in the storage chamber 13 c in the body 10 so that the operation portion 201 is inserted into these insertion grooves 5, and the return button attached to the terminal plate 41 ′. The operating portion 201 is elastically biased in a direction protruding from the insertion groove 5 by the spring 90 and stored in the storage chamber 13c. (See FIG. 51). In order to prevent the release button 200 from falling in the direction in which the drive unit 202 moves away from the terminal board 41 ′ when the release button 200 is incorporated into the body 10, as shown in FIG. 51 (a), the storage chamber 13 c of the body 10. Is provided with a rib 17 as a fall prevention means that abuts on and supports the release button 200, thereby preventing the release button 200 from falling and improving the assembly workability.
[0090]
Thus, when an electric wire is inserted between the contact piece 43 and the locking piece 44 of the terminal plate 41 ′ through the electric wire insertion hole 11 and connected to the terminal plate 41 ′, the tip of the electric wire is connected to the drive portion of the release button 200. The release button 200 is pressed against the inclined surface 202b formed in the recess 202a of the 202 in such a direction that the drive 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 inside of the container 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 ′ by the position of the operation unit 201 (non-connection position or connection position). It can be confirmed whether or not. In addition, since the release button 200 is movable in two directions, the front-rear direction and the longitudinal direction, the visibility is improved as compared with a case where the release button 200 moves only in 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 can be easily recognized.
[0091]
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 container body 1 is pushed by the finger through the insertion groove 5, and further the container body from the connection position. 1 When the release button 200 is moved to the inside, the end of the lock portion 44a of the terminal plate 41 ′ is pressed by the pushing projection 204 projecting from the tip of the arm portion 203 of the release button 200. It is possible to pull out the electric wire by bending the lock piece 44 so that the locked lock portion 44a is separated from the electric wire. If the pressing 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. The space for operating the operation unit 201 can be secured by the recess 4, and as a result, the amount by which the terminal portion 40 for the ground electrode protrudes from the bottom surface of the device body 1, that is, from the bottom surface of the device body 1 of the projecting table portion 3. The size of the container 1 can be reduced while suppressing the protrusion amount. Moreover, in this embodiment, it is set as the inclined surfaces 2a and 3a which incline in the recessed part 4 side toward the bottom face of the recessed part 4, and the surrounding surface (side surface which faces the recessed part 4 of the protrusion parts 2 and 3) of the recessed part 4, The opening area of the recess 4 is widened to make it easier to put a finger and the operability of the release button 200 is improved.
[0092]
As already described, the universal type insertion portion 24 and the O type insertion portion 24 ′ are formed on the front wall of the cover 20. The body 10 is assembled by coupling the body 10 and the cover 20 by fitting the assembly member 210 to the fitting portions 6 and 7 provided on both the body 10 and the cover 20.
[0093]
As shown in FIG. 32, rectangular fitting portions 6 are provided on both side surfaces of the body 10 facing in the short direction, with both sides sandwiching a central portion provided with a pair of longitudinal grooves 15, respectively. A concave groove 8 is formed in front of the fitting portion 6 (left side in FIG. 32B). On the other hand, as shown in FIG. 33, a pair of insertion grooves 21 communicating with the longitudinal grooves 15 of the body 10 are provided in the center portion in the longitudinal direction on both side surfaces of the cover 20 in the short direction, 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. In the state where the cover 20 is abutted against the opening surface of the body 10, the fitting portions 6 and 7 are arranged in a row with the concave groove 8 interposed therebetween.
[0094]
The assembly member 210 is made of a synthetic resin molded product having elasticity, and as shown in FIGS. 29 and 30, a pair of fitting holes 211 for fitting with the fitting portions 6, 7 are formed in the front-rear direction of the container 1 (FIG. 29). A pair of strip-like coupling pieces 212 arranged in parallel in the vertical direction in FIG. 5 and strip-like horizontal pieces 213 each having an end connected to the tip of each of the coupling pieces 212. A locking projection piece 214 having a locking claw 214a at the tip is projected from the substantially central portion sandwiched between the fitting holes 211 on the back side of the coupling piece 212 facing 1. Each fitting piece 211 is provided with an attachment claw 215 that engages with the attachment hole of the attachment frame or the plate, and protrudes outward so as to be aligned with the fitting hole 211.
[0095]
On the other hand, on the cover 20, a locked portion 26, which is locked by a locking claw 214 a provided at the distal end portion of the locking projection piece 214 of the assembly member 210 inserted from the concave groove 8 of the body 10, faces in the short direction. (See FIG. 33). A guide surface 27 is formed in the vicinity of the fitting portion 7 on the inside of 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.
[0096]
Thus, in order to assemble the body 1 by joining the body 10 and the cover 20, the locking projection piece 214 is inserted into the concave groove 8 with the body 10 and the cover 20 butted on the opening surface side. When the assembly member 210 is pressed toward both lateral sides of the container body 1, the body 10 and the fitting portions 6 and 7 of the cover 20 are fitted in the fitting holes 211 of the assembly member 210, respectively. And the cover 20 are combined, and at the same time, the latching projection piece 214 bends backward (to the body 10 side) so that the latching claw 214a provided at the tip of the latching projection piece 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 falling off from the fitting portions 6 and 7. The central portion of the horizontal piece 213 is bent to escape the release button 80 exposed on the side surface of the vessel 1.
[0097]
By the way, inside the cover 20, a first door 240 for closing the universal-type insertion part 24 so that it can be opened and closed, a second door 250 for closing the O-type insertion part 24 ′ so that it can be opened and closed, and a body 10 is disposed between the front surface of the cover 20 and the front wall of the cover 20 and accommodates a first frame 240 and a middle frame 260 that are slidably supported so as to be housed inside the cover 20. . That is, the plug 24 is pushed by the tip of the plug blade inserted into the plugs 24, 24 ′ and slides in a state where the first and second doors 240, 250 are supported by the inner frame 260. , 24 ′ and the plug blades can be connected to the blade receivers 31 </ b> A and 31 </ b> B through the plug blade insertion holes 261 provided in the middle frame 260. Further, when the plug blade is pulled out from the insertion portions 24, 24 ', the first and second doors 240, 250 are slid by the return spring 254 made of a coil spring, that is, the original positions, that is, the insertion portions 24, 24'. It is possible to prevent foreign matter other than the plug blade of the plug from being inserted into the insertion portions 24 and 24 ′.
[0098]
Also, in the present embodiment, similarly to the first embodiment, the plate 100 is used to be embedded in a construction surface such as a wall surface. At this time, the direction in which the protruding portion 3 on the back of the container 1 is positioned vertically upward with respect to the recess 4, that is, the direction in which the universal type insertion portion 24 is positioned on the O type insertion portion 24 ′. Since the upper part of the recess 4 is blocked by the protrusion 3 (terminal part), dust and the like can be prevented from accumulating in the recess 4. Further, in the construction site, there is a case where the electric wire is connected with the container body 1 attached to the plate frame 110. In this case, the operation portion 81 of the release button 80 protruding from the container body 1 interferes with the plate frame 110. If the wire cannot be moved to the normal non-connection position, it may be difficult to connect the wires. Therefore, in the present embodiment, the plate frame 110 is escaped by inclining the back surface of the drive unit 82 of the release button 80 (the surface exposed to the outside of the container 1 from the vertical groove 15) (see FIG. 52).
[0099]
By the way, since the release button 80 for the voltage electrode protrudes out of the container 1 at the non-connection position, there is a possibility that dust may enter from the clearance between the release button 80 and the container 1 until it is actually constructed. There is. Therefore, only until it is actually constructed, as shown in FIG. 53 (a), a fixed disk-shaped head 282 having a larger diameter than the shaft 281 is provided at the rear end of the cylindrical shaft 281. When the pin 280 is inserted into the electric wire insertion hole 11 and the release button 80 is fixed at the connection position, the clearance between the release button 80 and the container 1 is narrowed, so that dust can be prevented from entering (see FIG. 53 (b)). ). And at the time of actual construction, the fixing pin 280 may be removed and the electric wire connected.
[0100]
(Embodiment 3)
In the second embodiment, the universal type insertion portion 24 and the O-type insertion portion 24 'with a grounding pole are provided in the three-module unit 1; As shown in FIG. 4, two plugs 24 ′ with an O-type ground electrode are provided in the three-module body 1.
[0101]
As shown in FIG. 57, the interior of the body 10 is divided into three internal spaces by the partition wall 12, and the front surface of the body 10 is covered by the middle frame 260 ′ housed in the cover 20. The internal space is divided into three independent storage chambers 13a, 13b, and 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.
[0102]
In the body 10, blade receiving blocks 30A and 30B for voltage electrodes are respectively stored in the storage chambers 13a and 13b at both ends. Each of the blade receiving blocks 30A and 30B is configured by fixing the O-type blade receiving 31B to the fixed piece 45 of the terminal plate 41, respectively. Each blade receiving 31B is accommodated in a partition at both ends in the longitudinal direction, and the terminal plate 41 is accommodated. It is stored in the storage chambers 13a and 13b at both ends of the body 10 so as to be stored in the central section in the longitudinal direction.
[0103]
On the other hand, a blade receiving block 30C for the ground electrode is stored in the central storage chamber 13c in the body 10. In the blade receiving block 30C, two O-type blade receiving portions 31B are connected by a leg piece 35, and are fixed to the terminal plate 41 'by a coupling piece 36 provided on the leg piece 35. That is, the positioning projections 42b projecting from the main piece 42 of the terminal plate 41 ′ are fitted into the positioning holes 36b penetrating the coupling piece 36 to position the terminal plate 41 ′ and the blade receiver 31C. The caulking protrusion 36a projecting from the coupling piece 36 is inserted into the caulking hole 42a penetrating the main piece 42 and caulked, thereby coupling the main piece 42 of the terminal plate 41 'and the blade receiver 31C. The blade receiving block 30C is configured by joining the pieces 36 together.
[0104]
As shown in FIG. 59A, if the blade holder 31B and the terminal plate 41 are integrally formed by processing a metal member, there is an advantage that a connecting 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 receiving springs 32 are arranged at the rear edges, that is, the connecting piece 34 faces the tip of the plug blade in the plug blade insertion direction. The structure which connects so that it may do, and the structure which connects a pair of blade receiving spring 32 as shown in FIG.59 (b) so that the side edge, ie, the connection piece 34, follows the insertion direction of a plug blade can be considered. However, in the former structure, the spring performance of the blade receiving spring 32 is excellent compared to the latter structure, and in the latter structure, compared to the former structure, so-called plate cutting when punching from a metal member is excellent. Any structure may be appropriately selected and combined in view of required performance.
[0105]
In each of the storage chambers 13a to 13c, the release buttons 80 and 200 are stored together with the terminal plates 41 and 41 'to form the terminal portion 40. The configuration of the terminal portion 40 is the same as that of the second embodiment, and the description will be given. Omitted.
[0106]
The assembly member 220 in this embodiment is made of a synthetic resin molded product having elasticity, and as shown in FIG. 60, a pair of fitting holes 221 for fitting with the fitting portions 6 and 7 are formed in the front-rear direction of the container body 1 (FIG. 60). A locking protrusion 224 having a locking claw 224a at the tip from a substantially central portion sandwiched between the fitting holes 221 on the back side facing the container body 1 is formed in a strip shape arranged in parallel in the vertical direction in FIG. Are projecting outward, and mounting claws 225 that engage with the mounting holes of the mounting frame and the plate are projected outward so as to be aligned with the fitting holes 221.
[0107]
Thus, the assembly member 220 can be pressed toward both lateral sides of the container body 1 so that the locking protrusions 214 are inserted into the concave grooves 8 with the body 10 and the cover 20 abutted on the opening surface side. For example, the fitting portions 6 and 7 of the body 10 and the cover 20 are fitted in the respective fitting holes 221 of the assembly member 220 so that the body 10 and the cover 20 are coupled to each other, and at the same time, the tip of the locking protrusion 224. The locking protrusion 224 bends backward (to the body 10 side) so that the locking claw 224a provided on the cover 20 follows the guide surface 27 of the cover 20, and the locking claw 224a eventually locks to the locked portion 26 of the cover 20 By doing so, it is possible to prevent the assembly member 220 from falling off the fitting portions 6 and 7.
[0108]
In addition, the cover 20 is disposed between the two doors 250 for opening and closing the O-type insertion portion 24 ′ so as to be freely opened and closed, and between the front surface of the body 10 and the front wall of the cover 20. An inner frame 260 ′ that is slidably supported so as to be housed inside is housed. That is, the insertion portion 24 ′ is opened by being slid in a state where the door 250 is supported by the middle frame 260 ′ by being pushed by the tip of the plug blade inserted into the insertion portion 24 ′, and the middle frame 260 ′ is opened. The plug blade can be connected to the blade receiver 31B through the plug blade insertion hole 261 ′ provided therethrough. Further, when the plug blade is pulled out from the insertion portion 24 ', the door 250 is slid by the return spring 254 made of a coil spring to return to the original position, that is, the position where the insertion portion 24' is closed. Can be prevented from being inserted into the insertion portion 24 '.
[0109]
As shown in FIG. 61, if the width dimension of the end portion of the assembly member 220 where the mounting claws 225 are provided is made narrower than the width dimension of other parts, the assembly member 220 with respect to the body 10 and the cover 20 There is an advantage that the fitting direction is easy to understand and the workability is improved.
[0110]
(Embodiment 4)
The third embodiment is provided with two plugs 24 ′ with O-type grounding poles in the three-module body 1, but this embodiment is an O-type as shown in FIGS. 62 to 64. In this case, only one plug-in portion 24 ′ with a grounding electrode is provided in the two-module body 1.
[0111]
As shown in FIG. 65, the interior of the body 10 is divided into three interior spaces by the partition wall 12, and the front surface of the body 10 is covered with an inner frame 260 ″ housed in the cover 20. 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 along the longitudinal direction of the body 10 by a pair of partition walls 12b having slits 12a. It is divided into rooms.
[0112]
In the body 10, blade receiving blocks 30A and 30B for voltage electrodes are respectively stored in the storage chambers 13a and 13b at both ends. The blade receiving blocks 30A and 30B are configured by fixing an O-type blade receiving 31B to one fixed piece 45 of the terminal plate 41. Each blade receiving 31B is housed in a section at both ends in the longitudinal direction, and the terminal plate 41 is stored. It is stored in the storage chambers 13a and 13b at both ends of the body 10 so as to be stored in the central section in the longitudinal direction.
[0113]
On the other hand, a 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. As shown in FIG. 67 (a), if the blade holder 31B and the terminal plate 41 are integrally formed by processing a metal member, there is an advantage that a connecting operation such as caulking is unnecessary. Here, as a structure of the blade receiver 31B, for example, as shown in FIG. 67 (a), a pair of blade receiving springs 32 are arranged at their rear edges, that is, the connecting piece 34 faces the distal end of the plug blade in the plug blade insertion direction. As shown in FIG. 67 (b), 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 in the plug blade insertion direction, is conceivable. However, in the former structure, the spring performance of the blade receiving spring 32 is excellent compared to the latter structure, and in the latter structure, compared to the former structure, so-called plate cutting when punching from a metal member is excellent. Any structure may be appropriately selected and combined in view of required performance.
[0114]
In each of the storage chambers 13a to 13c, the release buttons 80 and 200 are stored together with the terminal plates 41 and 41 'to form the terminal portion 40. The configuration of the terminal portion 40 is the same as that of the second embodiment, and the description will be given. Omitted.
[0115]
Here, the same assembly member 220 as in the third embodiment can be used in this embodiment. That is, the assembly member 220 is configured such that the mounting claws 225 that engage 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 and 7 and the concave groove 8 at positions corresponding to the holding grooves 114a and 115a of the plate frame 110 on both side surfaces in the short direction, 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 parts compared to the case where a dedicated assembly member is used for each.
[0116]
In addition, the cover 20 is disposed between the door 250 that can open and close the O-type insertion portion 24 ′ and the front surface of the body 10 and the front wall of the cover 20. And an inner frame 260 ″ that is slidably supported so as to be housed in the housing. That is, the door 250 is supported by the inner frame 260 ″ by being pushed by the tip of the plug blade inserted into the insertion portion 24 ′. The plug 24 'is opened by sliding and moving, and the plug blade can be connected to the blade holder 31B through the plug blade insertion hole 261 "penetrating the middle frame 260". When the plug blade is pulled out from the insertion portion 24 ', the door 250 is slid by the return spring 254 to return to the original position, that is, the position where the insertion portion 24' is closed, and foreign matter other than the plug blade of the plug is inserted. It can prevent being inserted into the insertion portion 24 ′.
[0117]
(Embodiment 5)
This embodiment is common to Embodiment 1 in that a universal-type plug 24 is provided in the module body 1 as shown in FIGS. 68 to 70, but the body 10 and the cover 20 are combined. The assembly structure for assembling the container body 1 and the structure of the terminal portion 40 for connecting the electric wires are different, and the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
[0118]
First, the release button 140 will be described. The release button 140 in the present embodiment is made of a synthetic resin molded product, and as shown in FIGS. 68 and 75, a pair of connecting portions 144 and 144 project in the same direction from both ends of the rod-like operating portion 141, and each connecting portion is connected. The tip portions of the portions 144 and 144 are connected by a bridging portion 146 so that the whole is formed in a substantially square shape. A pair of pushing portions 143 and 143 project from both ends of the bridging portion 146 in the direction opposite to the connecting portions 144 and 144, and an arm portion is substantially parallel to the pushing portion 143 from the center of the bridging portion 146. 142 protrudes and a support portion 145 protrudes in a direction substantially perpendicular to the protruding direction of the arm portion 142 and opposite to the connecting portion 144. Further, at the tip of the arm portion 142, a cylindrical shaft portion 142a that is slidably mounted on a bearing base 14 provided in the body 10 as will be described later, the axial direction thereof is the longitudinal direction of the bridging portion 146. It is provided so that it may become parallel. Then, as will be described later, the support portion 145 contacts the fixed rib 28 provided on the cover 20, so that the shaft portion 142 a is rotatably supported in a state of being placed on the bearing base 14. Here, a side surface 145a of the support portion 145 opposite to the shaft portion 142a is formed into a cylindrical surface, and a curved surface (cylindrical surface) 28a that is in sliding contact with the side surface 145a of the support portion 145 is formed at the tip of the fixing rib 28. ing.
[0119]
On the other hand, a pair of longitudinal grooves 15 communicating with the respective storage chambers 13 are arranged in parallel on both side surfaces of the body 10 in the longitudinal direction, and the release button 140 is connected to the connecting portion 144 and the operation portion 141 of the body 10 through the longitudinal groove 15. The pair of pushing portions 143 and 143 are exposed to the outside and face the receiving portion 44c of the locking piece 44 of the terminal plate 41 (see FIG. 76), and the shaft portion 142a is attached to the bearing base 14 provided in the storage chamber 13. , And the support portion 145 is brought into contact with the tip of the fixing rib 28 of the cover 20, so that the shaft portion 142 a serves as a fulcrum to rotate along the front-rear direction (vertical direction in FIG. 68) of the container 1. It arrange | positions in the storage chambers 13 and 13 (refer FIG. 70). Here, in the present embodiment, as shown in FIG. 78, an escape portion 142b for allowing the bearing base 14 to escape is formed in a recessed manner on the rear surface side of the arm portion 142.
[0120]
Thus, in order to pull out the electric wire connected to the terminal portion 40, the operation portion 141 exposed on the side surface of the container body 1 through the longitudinal grooves 15 and 15 may be operated with a finger. That is, as shown in FIG. 79 (b), if the operation unit 141 is operated to push forward (upward in FIG. 79), the release button 140 rotates around the shaft 142a as a fulcrum, and the push units 143, 143 By pressing the receiving portions 44c of the terminal plates 41 facing each other at 143, the locking pieces 44 are bent so that the locking portions 44a biting into the wires are separated from the wires, and the wires can be pulled out. Further, since the release button 140 of this embodiment pushes and moves the lock portion 44a by the pushing portion 143 using the principle of lever, the release button 60 is translated with respect to the body 1 as in the first embodiment. As a result, there is an advantage that the load applied to the operation unit 141 can be reduced as compared with the structure in which the locking part 44a is pushed and moved.
[0121]
Next, a structure for assembling the container 1 by combining the body 10 and the cover 20 will be described.
[0122]
As shown in FIG. 71, a prismatic fitting portion 6 protrudes from both side surfaces facing the longitudinal direction of the body 10 at the center portion between the pair of vertical grooves 15. On the other hand, as shown in FIG. 72, a pair of fitting portions 7 are respectively provided on both side surfaces of the cover 20 in the longitudinal direction. Here, the fitting portion 7 protruding from the cover 20 is along the front-rear direction (vertical direction in FIG. 72 (d)) of the container 1 that joins the body 10 and the cover 20 as shown in FIG. The width dimension is set to be smaller than the width dimension along the direction perpendicular to the front-rear direction and parallel to the side surface of the container 1 (the left-right direction in FIG. 72 (d)), and a notch 7a is formed at one of the four corners. Is formed.
[0123]
The assembly member 150 is made of a synthetic resin molded product having elasticity. As shown in FIG. 73, a pair of fitting holes 151 and 151 for fitting with the fitting portions 7 and 7 of the cover 20 are arranged in parallel in the longitudinal direction. The strip-shaped main piece 152 and the fitting hole 153a for fitting with the fitting portion 6 of the body 10 are provided, and the convex piece 153 having an inverted convex shape protruding backward from the center of the rear end edge of the main piece 152 is provided. A locking projection piece 154 having a locking claw 154a at the tip protrudes from both corners overlapping the corners of the fitting holes 151 and 151 on the back side of the main piece 152 facing the container 1 It is installed. In addition, a pair of attachment portions 155 for attaching to the plate frame 110 protrude from both front end portions on the surface of the main piece 152.
[0124]
On the other hand, on both side surfaces in the longitudinal direction of the cover 20, a concave groove 27 communicating with the notch 7 a of the fitting portion 7, and a locking protrusion piece 154 of the assembly member 150 provided behind the concave groove 27 are provided. The locked portion 26 to which the locking claw 154a is locked is formed on the back side in the vicinity of both ends in the longitudinal direction (see FIG. 72 (c)).
[0125]
Thus, in order to assemble the body 1 by joining the body 10 and the cover 20, the locking protrusion 154 is inserted into the concave groove 27 in a state where the body 10 and the cover 20 are abutted on the opening surface side. When the assembly member 150 is pressed toward the opposite side surfaces of the container body 1 in the longitudinal direction, the fitting portions 6 and 7 of the body 10 and the cover 20 are fitted in the fitting holes 153a and 151 of the assembly member 150, respectively. At the same time as the body 10 and the cover 20 are coupled, the locking claw 154a provided at the tip of the locking projection 154 is locked to the locked portion 26 of the cover 20, so that the assembly member 150 is fitted. The drop-off from the joint portions 6 and 7 can be prevented.
[0126]
Here, in this embodiment, the fitting part 7 of the cover 20 has a width dimension along the front-rear direction of the container body 1 perpendicular to the front-rear direction and parallel to the side surface of the container body 1 (hereinafter referred to as the container body 1). The width dimension along the vertical direction) is set to be smaller than the width dimension along the vertical direction. The dimension of the assembly member 150 can be reduced. 80, the fitting portions 7 and 7 of the cover 20 can be configured to be fitted into one fitting hole 151. However, as in the present embodiment, each fitting portion 7, 70, fitting holes 151 and 151 are provided to be fitted individually, and fitting parts 6 and 7 provided on the same side surface of the vessel 1 are disposed at the apex of the triangle as shown in FIG. Then, there is an advantage that the strength of the assembly member 150 can be improved and the positioning accuracy with respect to the container 1 can be improved.
[0127]
By the way, since the release button 140 having the structure as described above is adopted, in this embodiment, a stepped portion is provided on the surface by reducing the thickness of the convex piece 153 with respect to the main piece 152 of the assembly member 150. When the operation unit 141 is operated by this stepped part, the convex piece 153 does not interfere with the operation unit 141, and the operation unit 151 can be operated smoothly. In addition, since the locking protrusions 154 are provided at both ends of the main piece 152 and the locking claws 154a protrude so as to bend in the front-rear direction of the container body 1, the locking pieces 154 interfere with the release button 140. In addition, the assembly member 150 can be downsized in the vertical direction as compared with the case where the locking protrusion 154 is bent in the vertical direction of the container body 1.
[0128]
(Embodiment 6)
In the present embodiment, in order to prevent the inside of the body 1 from being seen from the outside through the vertical groove 15 provided on the side surface of the body 10 when the operation unit 141 of the release button 140 is not operated, the operation unit 141 is used. The assembly member 150 is characterized in that the assembly member 150 is provided with a blindfold 156 that covers the longitudinal grooves 15 and 15 when not operated, and rotates together with the operation unit 141 when the operation unit 141 is operated. Since other configurations are the same as those in the fifth embodiment, common components are denoted by the same reference numerals, and illustration and description thereof are omitted as appropriate.
[0129]
As shown in FIG. 81, the assembly member 150 of the present embodiment includes a projection piece 153 provided with a fitting hole 153a for fitting with the fitting portion 6 of the body 10, and a projection piece 153 via a thin hinge portion 156a. A rectangular flat plate-shaped blindfolded portion 156 connected to the rear end edge is formed of a synthetic resin molded product integrally formed with the main piece 152, and the blindfolded portion 156 is rotatable with respect to the protruding piece 153 by the hinge portion 156a. It has become. In addition, an inclined surface 156b is formed at the rear end edge of the blindfold 156 so as to be inclined inward from the rear toward the front (from bottom to top in FIG. 81).
[0130]
Thus, when the body 10 and the cover 20 are combined using the assembly member 150 to assemble the container body 1, a pair of vertical grooves exposed to the side surface of the container body 1 by the blindfold 156 as shown in FIG. 15 and 15 are covered and the inside of the container 1 is not visible from the outside, and foreign matters such as dust can be prevented from entering the container 1 through the longitudinal grooves 15 and 15. When the operation part 141 exposed on the side surface of the container body 1 is pushed up with the finger through the longitudinal grooves 15 and 15, the blindfolded part 156 of the assembly member 150 becomes the hinge part 156a as shown in FIG. 82 (b). Is rotated together with the operation unit 141 as a fulcrum, so that the operation of the operation unit 141 is not hindered.
[0131]
【The invention's effect】
  The invention according to claim 1 is a body formed by joining a body and a cover, one or more fitting parts projecting from the side surfaces of the body and the cover, and a fitting of the body and the cover made of a synthetic resin molded product. And one or a plurality of assembly members having a pair of fitting holes for individually engaging with the mating part, and the body and the cover by fitting the fitting parts of the body and the cover into the fitting holes of the assembly member, respectively. CombinedThe locking projections inserted into the container body are provided at the portion sandwiched between the fitting holes of the assembly member, and the locked portion formed by the locking claw formed at the tip of the locking projection Was provided inside the vesselIn order to individually fit the fitting part of the body and the fitting part of the cover into the pair of fitting holes of the assembly member, the fitting part of the body and the cover are fitted into the same fitting hole. Compared with the case of combining, the body and the cover can be firmly coupled while suppressing the rattling of the assembly member due to the dimensional error of each fitting portion.In addition, by locking the locking claw to the locked portion, the assembly member can be prevented from falling off from the fitting portion of the body and cover, and the locking protrusion is sandwiched between the fitting holes. The assembly member can be reduced in size by being provided at the site.
[0133]
  Claim2The invention of claim1In the invention, the locked portion is provided on the cover, and a guide portion for guiding the locking claw into the cover is provided at a portion where the locking protrusion on the side of the cover is inserted. The piece can be easily inserted into the cover, and the assembly work of the body and the cover by the assembly member is facilitated.
[0134]
  Claim3The invention of claim1In this invention, the locking portion is provided on the body, and a guide portion for guiding the locking claw into the body is provided at a portion where the locking protrusion on the side of the body is inserted. The pieces can be easily inserted into the body, and the assembly work of the body and the cover by the assembly member is facilitated.
[0135]
  Claim4The invention of claim 1 to claim 13In any of the inventions, a mounting portion for mounting the body on a mounting frame or a mounting frame-integrated plate installed around the embedding hole provided on the construction surface is provided on the body, and the rear portion is used as the embedding hole. It is characterized in that the container is disposed on the construction surface in an embedded form, and the container can be embedded and disposed on the construction surface such as a wall surface using a mounting frame or a plate.
[0136]
  Claim5The invention of claim4In the invention, the mounting portion is provided in the assembly member so as to be aligned with the pair of fitting holes, and the position of the mounting portion differs depending on the size of the vessel body, but the size is different. The assembly member can be used in common for the body, and the cost can be reduced.
[0137]
  Claim6The invention of claim5In this invention, the width dimension of the part where the mounting portion for the assembly member is provided is different from the width dimension of the other part, and the fitting direction of the assembly member with respect to the body and the cover becomes easy to understand and the workability is improved. .
[0140]
  Claim7The invention ofA body formed by joining the body and the cover, one or more fitting portions projecting from the side surfaces of the body and the cover, and a synthetic resin molded product. One or more assembly members having a pair of mating holes to be mated;The terminal plate that comes into contact with the electric wire introduced into the main body through the electric wire insertion hole that penetrates the main body and the terminal plate using the spring force and the locking part bite into the electric wire A connecting means for preventing the disconnection, and a releasing means for releasing the retaining state by the electric wire connecting means,The body and the cover are joined by fitting the fitting part of the body and the cover to the fitting hole of the assembly member, respectively, and the fitting part extends along the front-rear direction of the container body that joins the body and the cover. The width dimension is set smaller than the width dimension along the direction perpendicular to the front-rear direction and parallel to the side surface of the body,The release means includes an operation portion that is exposed to the side of the body and is manually operated, a shaft portion that is pivotally supported in the body and allows the operation portion to rotate, and the operation portion is manually operated with the shaft portion as a fulcrum. And a pushing part that pushes the locking part that bites into the electric wire of the connecting means against the spring force when it is turned and moves it away from the electric wire, and the assembly member interferes with the operating part of the releasing means It is characterized by a step that allowsCompared to fitting the body and cover fitting parts into the same fitting hole, because the fitting part of the body and the fitting part of the cover are individually fitted into the pair of fitting holes of the assembly member. Thus, it is possible to firmly join the body and the cover while suppressing the rattling of the assembly member due to the dimensional error of each fitting portion. Moreover, the dimension of the assembly member along the front-back direction of a container can be made small, without reducing the intensity | strength of a fitting part. further,If you operate the operating part with one hand holding the body, the locking part that is biting into the wire is pushed and moved by the pushing part and the retaining state is released, and the other hand is used to remove the wire from the wire insertion hole. The wire can be pulled out, and the electric wire can be removed more easily than in the prior art, and the assembly member and the operation portion do not interfere with each other by providing the stepped portion.
[0141]
  Claim8The invention of claim7In this invention, the to-be-latched part which the latching claw formed in the front-end | tip of the latching protrusion is provided with the 1 or several latching projection piece inserted in the inside of a container body in the edge part of an assembly member It is characterized in that the assembly member is prevented from falling off from the fitting portion of the body and cover by locking the locking claw to the locked portion. By providing the stop protrusion at the end of the assembly member, it is possible to avoid interference with the release means.
[0142]
  Claim9The invention of claim7In this invention, a groove portion for exposing the operation portion of the release means to be freely rotatable is provided on the side surface of the container body so as to cover the groove portion when the operation portion is not operated and to rotate together with the operation portion when the operation portion is operated. A blindfold is provided on the assembly member, and when the operation part is not operated, the groove part of the container is covered with the blind part, so that the inside of the container is not visible from the outside through the groove part. Foreign matter can be prevented from entering the body through the groove, and the blindfold rotates together with the operating portion when operating the operating portion, so that the operation of the operating portion is not hindered.
  The invention of claim 10 is characterized in that, in the invention of claim 7, the plurality of fitting portions provided on the same side surface of the vessel body are disposed at the positions of the apexes of the triangle, and the strength of the assembly member is It can be improved.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a first embodiment.
2A is a front view, FIG. 2B is a right side view, FIG. 2C is a bottom view, and FIG. 2D is a rear view.
FIG. 3 is a perspective view of the same.
4A is a front view, FIG. 4B is a bottom view, FIG. 4C is a rear view, and FIG. 4D is a right side view.
5A is a front view, FIG. 5B is a bottom view, FIG. 5C is a right side view, and FIG. 5D is a rear view.
6A and 6B show the assembly member of the above, wherein FIG. 6A is a front view, FIG. 6B is a right side view, and FIG. 6C is a top view.
7A and 7B show a blade support according to the above, wherein FIG. 7A is a front view, FIG. 7B is a bottom view, and FIG. 7C is a right side view.
8A and 8B show the terminal plate of the above, wherein FIG. 8A is a front view, FIG. 8B is a bottom view, and FIG. 8C is a right side view.
9A and 9B show a release button in the same manner, FIG. 9A is a front view, FIG. 9B is a bottom view, and FIG. 9C is a right side view.
10A and 10B show the return spring of 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 the middle frame of the above, where FIG. 11A is a front view, FIG. 11B is a top view, and FIG. 11C is a right side view.
FIGS. 12A and 12B show the door of 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 cross-sectional view of a principal part showing a state in which an electric wire is connected to the terminal plate.
FIG. 14 is an explanatory diagram of the terminal board in the same as above.
FIG. 15 is a perspective view showing a terminal board having another configuration according to the first embodiment.
16A and 16B show still another configuration of the terminal plate, wherein FIG. 16A is a perspective view and FIG. 16B is a side view of a state in which an electric wire is connected.
FIG. 17 is a side view showing a terminal plate of another configuration according to the above.
FIG. 18 is a cross-sectional view of a principal part showing a state in which an electric wire is connected to the terminal plate.
FIGS. 19A and 19B show a terminal board having still another configuration, 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 same as above.
FIG. 21 is a side view of the main part of the release button in the same as above.
FIG. 22 is a view for explaining another fixing method of the terminal plate and the return spring in the same as above.
FIG. 23 is a rear view of the above.
FIG. 24 is a view for explaining a method of joining the body and cover in the same as above.
FIG. 25 is a diagram for explaining another method of joining the body and the cover in the same as above.
FIG. 26 is an exploded perspective view seen from the front of the plate to which the same is attached.
FIG. 27 is an exploded perspective view seen from the back of the plate to which the same is attached.
FIG. 28 is an explanatory view for explaining a procedure for attaching the container to the plate frame.
FIG. 29 is an exploded perspective view of the second embodiment.
30A is a front view, FIG. 30B is a right side view, FIG. 30C is a bottom view, and FIG. 30D is a rear view.
FIG. 31 is a perspective view of the same.
32A and 32B show the body, wherein FIG. 32A is a front view, FIG. 32B is a right side view, FIG. 32C is a rear view, FIG.
FIG. 33 shows the cover of the above, (a) is a front view, (b) is a left side view, (c) is a rear view, (d) is a top view, and (e) is a top sectional view.
FIG. 34 is a front view showing a state in which the cover is removed.
FIG. 35 shows a universal type blade holder according to the above, (a) is a front view, (b) is a top view, (c) is a left side view, (d) is a bottom view, and (e) is a right side view. (F) is a rear view.
FIG. 36 shows a blade holder for an O-type voltage electrode as in the above, (a) is a front view, (b) is a top view, (c) is a left side view, (d) is a bottom view, and (e). Is a right side view.
FIG. 37 shows the voltage electrode terminal plate of the same, (a) is a front view, (b) is a left side view, (c) is a right side view, and (d) is a top view.
FIG. 38 shows a blade holder for an O-type grounding electrode, wherein (a) is a front view, (b) is a top view, and (c) is a right side view.
FIG. 39 shows the terminal plate for the ground electrode in the same as above, (a) is a front view, (b) is a left side view, (c) is a top view, and (d) is a right side view.
FIG. 40 is an explanatory diagram for explaining 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 the voltage electrode is integrated.
42 (a) to 42 (c) are perspective views showing a structure of a blade receiver in the integrated blade receiver block of the same.
FIG. 43 is a perspective view showing a terminal plate of another configuration in the same as above.
FIG. 44 is a partially omitted rear view showing the body of another configuration of the above.
45 shows a release button for a voltage electrode in the same as above, (a) is a front view, (b) is a top view, and (c) is a right side view. FIG.
46A and 46B show the return spring, wherein FIG. 46A is a front view, FIG. 46B is a top view, and FIG. 46C is a right side view.
47 is a view for explaining a method of fixing the terminal plate and the return spring in the same as above. FIG.
FIG. 48 is a view for explaining a fixing method of the terminal plate and the return spring of another configuration in the same as above.
FIG. 49 is an explanatory diagram for explaining the work of incorporating the release button in the same as above.
FIG. 50 shows a release button for the ground electrode in the same as above, (a) is a front view, (b) is a top view, and (c) is a right side view.
FIG. 51 shows the terminal portion for the ground electrode in the same as above, (a) is a cross-sectional view of a main part at a non-connection position, and (b) is a cross-sectional view of a main part at a connection position.
FIG. 52 is a cross-sectional view of the relevant part in a state in which the container is attached to the plate frame.
FIG. 53 is an explanatory diagram of the fixing pin in the same as above.
FIG. 54 is an exploded perspective view of the third embodiment.
FIG. 55 shows the same as above, (a) is a front view, (b) is a right side view, (c) is a bottom view, and (d) is a rear view.
FIG. 56 is a perspective view of the same.
FIG. 57 shows the body of the same, (a) is a front view, (b) is a bottom view, (c) is a right side view, and (d) is a rear view.
FIG. 58 shows the cover of 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. 59A is a perspective view in which the voltage electrode blade support block is integrated, and FIG. 59B is a perspective view showing the structure of the blade support in the integrated blade support block.
FIG. 60 is a perspective view showing the assembly member of the above.
FIG. 61 shows assembly members of other configurations in the above, (a) is a front view, (b) is a right side view, and (c) is a top view.
FIG. 62 is an exploded perspective view of the fourth embodiment.
63A is a front view, FIG. 63B is a right side view, FIG. 63C is a bottom view, and FIG. 63D is a rear view.
FIG. 64 is a perspective view of the same.
FIG. 65 shows the body of the above, (a) is a front view, (b) is a bottom view, (c) is a right side view, and (d) is a rear view.
66A and 66B show the cover of the above, where 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 in which the voltage electrode blade support block is integrated, and FIG. 67 (b) is a perspective view showing the structure of the blade support in the integrated blade support block.
68 is an exploded perspective view showing the outlet of the fifth embodiment. FIG.
FIG. 69 shows the same as above, (a) is a front view, (b) is a right side view, (c) is a bottom view, and (d) is a rear view.
FIG. 70 is a perspective view of the same.
71 shows the same body, (a) is a front view, (b) is a bottom view, (c) is a cross-sectional view taken along the line AA of (a), (d) is a rear view, and (e) ) Is a right side view.
FIG. 72 shows the cover of the above, (a) is a front view, (b) is a bottom view, (c) is a right side view, and (d) is a rear view.
FIG. 73 shows the assembly member of the same, (a) is a front view, (b) is a top view, (c) is a bottom view, and (d) is a right side view.
74A and 74B show the terminal board of the above, wherein FIG. 74A is a front view, FIG. 74B is a bottom view, and FIG. 74C is a right side view.
FIG. 75 shows the release button of the above, (a) is a front view, (b) is a cross-sectional view taken along line AA of (a), (c) is a bottom view, and (d) is a right side view. is there.
FIG. 76 is a perspective view showing the positional relationship between the terminal board and the release button.
77 is a perspective view of a release button in the same as above. FIG.
FIG. 78 is a perspective view of the release button as seen from the rear side.
79 (a) and 79 (b) are diagrams for explaining the operation of the release button of the above.
FIG. 80 is a perspective view showing another structure of the assembly member of the above.
81 is a perspective view of an assembly member according to Embodiment 6. FIG.
FIGS. 82 (a) and 82 (b) are operation explanatory views of the same.
FIG. 83 is an exploded perspective view showing a conventional example.
FIG. 84 is an explanatory diagram illustrating a connection configuration of terminal portions in the same as above.
[Explanation of symbols]
1 body
6 Fitting part
7 Fitting part
10 body
20 Cover
50 Assembly parts
51 Mating hole

Claims (10)

ボディとカバーを結合してなる器体と、ボディ及びカバーの側面にそれぞれ突設された1乃至複数の嵌合部と、合成樹脂成型品からなりボディ並びにカバーの嵌合部と個別に凹凸嵌合する一対の嵌合孔を有する1乃至複数の組立部材とを備え、組立部材の嵌合孔にボディ及びカバーの嵌合部をそれぞれ嵌合させることでボディとカバーを結合してなり、器体内部に挿入される係止突片が組立部材の嵌合孔に挟まれた部位に設けられ、係止突片の先端に形成された係止爪が係止する被係止部が器体内部に設けられたことを特徴とする配線器具。A body formed by joining the body and the cover, one or more fitting portions projecting from the side surfaces of the body and the cover, and a concave and convex fit separately from the fitting portion of the body and the cover made of a synthetic resin molded product. and a one or a plurality of assembly members having a pair of fitting holes that case, Ri name by combining the body and cover by fitting each fitting portion of the body and the cover to the fitting hole of the assembly member, A locking projection to be inserted into the container body is provided at a portion sandwiched between the fitting holes of the assembly member, and a locked portion to be locked by a locking claw formed at the tip of the locking projection is a device. A wiring device provided inside the body . 被係止部がカバーに設けられ、カバー側面の係止突片が挿入される部位に係止爪をカバー内に案内するガイド部が設けられたことを特徴とする請求項1記載の配線器具。  2. The wiring device according to claim 1, wherein the locked portion is provided on the cover, and a guide portion for guiding the locking claw into the cover is provided at a portion where the locking protrusion on the side of the cover is inserted. . 被係止部がボディに設けられ、ボディ側面の係止突片が挿入される部位に係止爪をボディ内に案内するガイド部が設けられたことを特徴とする請求項記載の配線器具。Locked portion is provided in the body, the wiring device of claim 1, wherein the locking claw to the site where the locking protrusion of the body side is inserted, characterized in that the guide portion for guiding in the body is provided . 施工面に設けられる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部が器体に設けられ、後部を埋込孔に埋め込む形で器体が施工面に配設されることを特徴とする請求項1〜3の何れかに記載の配線器具。 An attachment part that attaches the body to a mounting frame or a mounting frame-integrated plate installed around the embedding hole provided on the construction surface is provided in the body, and the body is constructed in such a manner that the rear part is embedded in the embedding hole. The wiring device according to claim 1, wherein the wiring device is disposed on a surface . 前記取付部が、一対の嵌合孔と一列に並ぶように組立部材に設けられたことを特徴とする請求項記載の配線器具。The wiring device according to claim 4 , wherein the mounting portion is provided on the assembly member so as to be aligned with the pair of fitting holes . 組立部材の取付部が設けられた部位の幅寸法が他の部位の幅寸法と異なることを特徴とする請求項5記載の配線器具。 6. The wiring device according to claim 5, wherein the width dimension of the part provided with the mounting portion of the assembly member is different from the width dimension of the other part . ボディとカバーを結合してなる器体と、ボディ及びカバーの側面にそれぞれ突設された1乃至複数の嵌合部と、合成樹脂成型品からなりボディ並びにカバーの嵌合部と個別に凹凸嵌合する一対の嵌合孔を有する1乃至複数の組立部材と、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、ばね力を利用して端子板との間で電線を狭持するとともに鎖錠部が電線に食い込んで抜け止めする接続手段と、電線接続手段による抜け止め状態を解除する解除手段とを備え、組立部材の嵌合孔にボディ及びカバーの嵌合部をそれぞれ嵌合させることでボディとカバーを結合してなり、前記嵌合部は、ボディとカバーを結合する器体の前後方向に沿った幅寸法が該前後方向に直交し且つ器体の側面に平行な方向に沿った幅寸法よりも小さく設定され、解除手段は、器体の側面に露出して手動操作される操作部と、器体内に枢支されて操作部を回動自在とする軸部と、軸部を支点に操作部が手動操作によって回動したときにばね力に抗して接続手段の電線に食い込んだ鎖錠部を電線から引き離す向きに押し動かす押動部とを具備してなり、組立部材に解除手段の操作部との干渉を逃がす段部が設けられたことを特徴とする配線器具。 A body formed by joining the body and the cover, one or more fitting portions projecting from the side surfaces of the body and the cover, and a concave and convex fit separately from the fitting portion of the body and the cover made of a synthetic resin molded product. One or a plurality of assembly members having a pair of mating holes, a terminal plate that comes into contact with an electric wire introduced into the container through an electric wire insertion hole penetrating the container, and a terminal plate using spring force A connecting means for holding the electric wire between the lock and the locking part biting into the electric wire to prevent it from coming off, and a releasing means for releasing the retaining state by the electric wire connecting means, and the body and cover in the fitting hole of the assembly member The body and the cover are joined by fitting each of the fitting parts, and the fitting part has a width dimension along the front-rear direction of the container that joins the body and the cover, and is orthogonal to the front-rear direction. Width dimension along the direction parallel to the side of the container The release means is exposed to the side of the body and is manually operated, a shaft that is pivotally supported in the body and is rotatable, and the shaft is a fulcrum. A pressing part that pushes the locking part that bites into the electric wire of the connecting means against the spring force when the operating part is rotated by a manual operation in a direction to separate it from the electric wire, wiring instrument stepped portion for releasing interference with the operation unit you characterized in that provided. 器体内部に挿入される1乃至複数の係止突片が組立部材の端部に設けられ、係止突片の先端に形成された係止爪が係止する被係止部が器体内部に設けられたことを特徴とする請求項記載の配線器具。 One or more locking projections inserted into the interior of the container are provided at the end of the assembly member, and the locked portion to which the locking claw formed at the tip of the locking projection is locked is inside the container. wiring device of claim 7, wherein the provided. 解除手段の操作部を回動自在に露出させるための溝部が器体の側面に設けられ、操作部の非操作時に溝部を覆い隠すとともに操作部の操作時には操作部とともに回動する目隠し部が組立部材に設けられたことを特徴とする請求項記載の配線器具。 A groove for exposing the operation part of the release means to be rotatable is provided on the side surface of the container, and the blind part that covers the groove when the operation part is not operated and rotates with the operation part when the operation part is operated is assembled. The wiring device according to claim 7 , wherein the wiring device is provided on a member . 器体の同一側面に設けられる前記複数の嵌合部が、三角形の頂点の位置に配設されたことを特徴とする請求項記載の配線器具 The wiring device according to claim 7, wherein the plurality of fitting portions provided on the same side surface of the vessel body are arranged at the positions of the apexes of the triangle .
JP2003114811A 2002-11-26 2003-04-18 Wiring equipment Expired - Fee Related JP3969339B2 (en)

Priority Applications (3)

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JP2003114811A JP3969339B2 (en) 2002-11-26 2003-04-18 Wiring equipment
TW92124168A TWI236866B (en) 2002-11-26 2003-09-02 Wiring tools
CN 200310113688 CN1503419B (en) 2002-11-26 2003-11-19 Wire distribution tools

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JP2002342906 2002-11-26
JP2003114811A JP3969339B2 (en) 2002-11-26 2003-04-18 Wiring equipment

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JP4289230B2 (en) * 2004-06-25 2009-07-01 パナソニック電工株式会社 Fast connection terminal device
JP5884078B2 (en) * 2011-11-18 2016-03-15 パナソニックIpマネジメント株式会社 Electric wire connection terminal and wiring apparatus provided with the same
CN108281832B (en) * 2018-01-25 2024-08-30 惠阳晋煜工业有限公司 Connector
CN113824043B (en) * 2021-09-30 2023-06-09 安捷电维智能科技研究院(广州)有限公司 Automatic tape winding device

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