JP4293479B2

JP4293479B2 - Wiring equipment

Info

Publication number: JP4293479B2
Application number: JP31035398A
Authority: JP
Inventors: 克彦小林
Original assignee: Jimbo Electric Co Ltd
Current assignee: Jimbo Electric Co Ltd
Priority date: 1998-10-30
Filing date: 1998-10-30
Publication date: 2009-07-08
Anticipated expiration: 2018-10-30
Also published as: JP2000139005A

Description

【０００１】
【発明の属する技術分野】
この発明は、電源、負荷、三路スイッチ、及び四路スイッチの分岐点に設けられ、電源と負荷との間を三路スイッチ及び四路スイッチによって開閉可能な屋内配線を形成するための配線器具に関する。
【０００２】
【従来の技術】
屋内配線の分岐点に設けられる配線器具は、一般にジョイントボックスと称され、電源、負荷、及びスイッチをこのジョイントボックスに接続するだけで所望の屋内配線を容易に施工できるため、近年、屋内配線工事に広く普及してきている。
すなわち、配線器具（ジョイントボックス）には、あらかじめ用途に応じた配線回路が組み込まれており、電源、負荷、及びスイッチ間の接続配線が、配線器具の内部で実現できる構造となっている。
【０００３】
【発明が解決しようとする課題】
さて、屋内の各所で照明などの負荷をＯＮ／ＯＦＦするためには、図１０に示すように、電源１０１と負荷１０２との間に、三路スイッチ１０３，１０４及び四路スイッチ１０５を用いた屋内配線を形成する必要がある。この種の屋内配線（以下、「各所操作用配線」ということもある）は周知であるが、従来の配線器具（ジョイントボックス）には、この三路スイッチ及び四路スイッチを組み合わせてなる各所操作用配線を形成できる構成のものが提案されていなかった。
【０００４】
これは、従来の配線器具（ジョイントボックス）は、屋内の各部屋ごとの配線を管理するように開発・設計されていることに起因するものと思われるが、いずれにしてもこの種の各所操作用配線に対応した配線器具（ジョイントボックス）があれば、いっそう施工作業が容易となることは間違いない。
この発明は、このような事情に鑑みてなされたもので、電源と負荷との間を三路スイッチ及び四路スイッチによって開閉可能な屋内配線を容易に施工することができる配線器具の提供を目的とする。
【０００５】
【課題を解決するための手段】
図９はこの発明に係る配線器具の回路構成例を示す図である。同図を参照してこの発明の構成を説明する。
すなわち、この発明の配線器具は、上記目的を達成するために、電源１０１につながる少なくとも２本の配線ケーブルを接続する電源接続部１と、負荷１０２につながる少なくとも２本の配線ケーブルを接続する負荷接続部２と、第１の三路スイッチ１０３につながる３本の配線ケーブルを接続する第１の三路スイッチ接続部３と、第２の三路スイッチ１０４につながる３本の配線ケーブルを接続する第２の三路スイッチ接続部４と、四路スイッチ１０５につながる２本の配線ケーブルを接続する第１の四路スイッチ接続部５と、四路スイッチ１０５につながる別の２本の配線ケーブルを接続する第２の四路スイッチ接続部６とを器体に備え、各接続部１〜６間に、第１，第２の三路スイッチ１０３，１０４又は四路スイッチ１０５の操作により電源１０１と負荷１０２との間を開閉する配線回路を形成した構成としてある。
【０００６】
上記各接続部には、例えば、次のような接続端子が設けてある。
（１）電源接続部１に、第１，第２電源接続端子１ａ，１ｂ
（２）負荷接続部２に、第１，第２負荷接続端子２ａ，２ｂ
（３）第１の三路スイッチ接続部３に、第１乃至第３三路スイッチ接続端子３ａ，３ｂ，３ｃ
（４）第２の三路スイッチ接続部４に、第４乃至第６三路スイッチ接続端子４ａ，４ｂ，４ｃ
（５）第１の四路スイッチ接続部５に、第１，第２四路スイッチ接続端子５ａ，５ｂ
（６）第２の四路スイッチ接続部６に、第３，第４四路スイッチ接続端子６ａ，６ｂ
【０００７】
そして、上記配線回路は、例えば、次の各接続金具により形成することができる。
（イ）第１電源接続端子１ａと第１三路スイッチ接続端子３ａとを電気的に接続する接続金具１１
（ロ）第２電源接続端子１ｂと第２負荷接続端子２ｂとを電気的に接続する接続金具１２
（ハ）第２三路スイッチ接続端子３ｂと第２四路スイッチ接続端子５ｂとを電気的に接続する接続金具１３
（ニ）第３三路スイッチ接続端子３ｃと第１四路スイッチ接続端子５ａとを電気的に接続する接続金具１４
（ホ）第１負荷接続端子２ａと第４三路スイッチ接続端子４ａとを電気的に接続する接続金具１５
（ヘ）第５三路スイッチ接続端子４ｂと第４四路スイッチ接続端子６ｂとを電気的に接続する接続金具１６
（ト）第６三路スイッチ接続端子４ｃと第３四路スイッチ接続端子６ａとを電気的に接続する接続金具１７
【０００８】
この構成により、第１，第２の三路スイッチ接続部３，４に接続した各三路スイッチ１０３，１０４、又は第１，第２の四路スイッチ接続部５，６に接続した四路スイッチ１０５の操作をもって、電源１０１と負荷１０２との間を開閉することが可能となる。
【０００９】
ここで、電源接続部１、第１の三路スイッチ接続部３、及び第１の四路スイッチ接続部５は、器体の一方の側部に並べて形成するとともに、負荷接続部２、第２の三路スイッチ接続部４、及び第２の四路スイッチ接続部６は、器体の他方の側部に並べて形成することが好ましい。さらに、電源接続部１と負荷接続部２、第１の三路スイッチ接続部３と第２の三路スイッチ接続部４、及び第１の四路スイッチ接続部５と第２の四路スイッチ接続部６は、それぞれ対称位置に形成することが好ましい。
【００１０】
このように各接続部を配置することにより、上記（イ）、（ハ）、（ホ）、及び（ヘ）の各接続金具１１，１３，１５，１６を同一形状とすることができ、また上記（ニ）及び（ト）の接続金具１４，１７も同一形状とすることができる。したがって、接続金具の共通化を図り部品点数の削減、ひいては製品コストの低価格化を実現できる。
【００１１】
なお、電源接続部１及び負荷接続部２にそれぞれ接地用の接続端子１ｃ，２ｃを設けるとともに、これら接地用の接続端子１ｃ，２ｃを接地用接続金具１８により電気的に接続してもよい。この場合、接地用接続金具１８は、上記（ロ）の接続金具１２と同一形状とすれば、部品点数を削減することができる。
【００１２】
【発明の実施の形態】
以下、この発明の実施の形態について図面を参照して詳細に説明する。
図１はこの発明の実施形態に係る配線器具の分解斜視図、図２は同じく平面図、図３は図２の矢視Ａ−Ａ線図、図４はカバー部材を取り外した状態の平面図、図５は図２のＢ−Ｂ線断面図、図６は図２の矢視Ｃ−Ｃ線図、図７は図２のＤ−Ｄ線断面図である。なお、これらの図面において、先に示した図９と同一部分又は相当する部分には同一符号を付してある。
【００１３】
図１に示すように、この実施形態の配線器具は、ケース２１とカバー部材２２とで器体２０を構成しており、その器体２０の内部に絶縁部材３０及び接続金具１１〜１８を備えている。
ケース２１は、上面または底面（図では上面）が開口した薄形の筐体構造となっており、対向する両側面の各三箇所に電線挿入窓２３が形成してある。ケース２１の内部には、絶縁部材３０の組込空間２４が、中央のリブ２５を境界として各側面寄りに別れて形成してある。このケース２１は、可塑性樹脂材料で一体成形してあるので、外力に対して柔軟性を有し、後述するカバー部材２２を装着したときにも過大な内部応力を生じることがなく、また落下等に伴う衝撃力にも強く破損等のおそれが少ない。
【００１４】
絶縁部材３０は、同一形状のものを一組（２個）用意する。これらの絶縁部材３０は、絶縁性の熱硬化性樹脂材料によって一体成形してある。絶縁部材３０には、ケース２１の電線挿入窓２３と対応する三箇所に嵌合凸部３１が形成してある。各嵌合凸部３１は、ケース２１の片面に形成された電線挿入窓２３にそれぞれ嵌合する寸法形状としてある。これら嵌合凸部３１には、それぞれ三個の電線挿入孔３２が並べて設けてある。
【００１５】
そして、各電線挿入孔３２の内側開口部から連続した部分には、後述する各接続金具の１１〜１８の速結端子部ｂ，ｃをがたつきなく配置するための速結端子配置部３３が形成してある。各速結端子配置部３３の間は、絶縁壁３４によって仕切られている。
【００１６】
一組の絶縁部材３０は、ケース２１のそれぞれの組込空間２４へ対称に装着する。このとき、絶縁部材３０の嵌合凸部３１をケース２１の電線挿入窓２３に嵌め込み、嵌合凸部３１に設けた電線挿入孔３２が、ケース２１の両側面にそれぞれ開口するようにする（図５，図６参照）。
【００１７】
この実施形態では、各接続金具１１〜１８によって、図９に示した配線回路を器体２０内に構成する。
このうち接続金具１１，１３，１５，１６は同一形状をしており、帯状の接続架橋部ａと、この接続架橋部ａの両端から段差をつけて延出する速結端子部ｂ，ｃとを有している。また、接続金具１４，１７も同一形状をしており、帯状の接続架橋部ａと、この接続架橋部ａの両端から段差をつけて延出する速結端子部ｂ，ｃとを有している。
これら各接続金具１１，１３，１５，１６及び接続金具１４，１７は、例えばプレス加工機を用いて、金属板を打ち抜いた後、段差部及び速結端子部ｂ，ｃを折曲げ加工することにより、各部を一体成形してある。
【００１８】
接続金具１２，１８も同一形状をしており、帯状の接続架橋部ａと、この接続架橋部ａの両端から延出する速結端子部ｂ，ｃとを有している。接続金具１２，１８には接続架橋部ａに段差を設けておらず、器体２０に組み込んだとき、同接続架橋部ａが接続金具１１，１５の接続架橋部ａと交差して配置できるようにしてある。
これら接続金具１２，１８も、例えばプレス加工機を用いて、金属板を打ち抜いた後、速結端子部ｂ，ｃを折曲げ加工することにより、各部を一体成形してある。
【００１９】
さて、ケース２１へ対称に組み込む一組の絶縁部材３０は、既述したように同一形状のものを使用して、生産コストの低減を図ると共に生産性の向上を図っている。このように、同一形状の絶縁部材を対称に組み込む結果、速結端子部ｂ，ｃを配置するための速結端子配置部３３はそれぞれ逆向となる。
そこで、特に接続金具１２，１８は、一方の絶縁部材３０の速結端子配置部３３に配置する速結端子部ｂと、他方の絶縁部材３０の速結端子配置部３３に配置する速結端子部ｃとが、それぞれ逆向きとなるように成形してある。
【００２０】
各接続金具１１〜１８の速結端子部ｂ，ｃには電線の押えばね１９が挿入され、この押えばね１９と速結端子部ｂ，ｃの天井面との間で電線を挾持する構造となっている。このように押えばね１９が挿入された各接続金具１１〜１８の速結端子部ｂ，ｃは、図９に示した配線回路に対応して、絶縁部材３０に形成した所定の速結端子配置部３３に配置する。この配置状態で、各速結端子部ｂ，ｃの側端面（電線挿入のため開口している）は、絶縁部材３０の電線挿入孔３２と対面する。
【００２１】
接続金具１１〜１８の速結端子部ｂ，ｃが配置された速結端子配置部３３は、図４に示すように、それぞれ図９に示した配線回路における接続部１〜６を形成する。
【００２２】
速結端子配置部３３に配置された接続金具１１〜１８の速結端子部ｂ，ｃと、図９に示した配線回路における接続端子との相互関係をまとめると、次のようになる（図９、図４参照）。すなわち、
（ａ）接続金具１１の速結端子部ｂは、第１電源接続端子１ａを形成する。
（ｂ）接続金具１１の速結端子部ｃは、第１三路スイッチ接続端子３ａを形成する。
（ｃ）接続金具１２の速結端子部ｂは、第２電源接続端子１ｂを形成する。
（ｄ）接続金具１２の速結端子部ｃは、第２負荷接続端子２ｂを形成する。
（ｅ）接続金具１３の速結端子部ｂは、第２三路スイッチ接続端子３ｂを形成する。
（ｆ）接続金具１３の速結端子部ｃは、第２四路スイッチ接続端子５ｂを形成する。
（ｇ）接続金具１４の速結端子部ｂは、第３三路スイッチ接続端子３ｃを形成する。
（ｈ）接続金具１４の速結端子部ｃは、第１四路スイッチ接続端子５ａを形成する。
（ｉ）接続金具１５の速結端子部ｂは、第１負荷接続端子２ａを形成する。
（ｊ）接続金具１５の速結端子部ｃは、第４三路スイッチ接続端子４ａを形成する。
（ｋ）接続金具１６の速結端子部ｂは、第５三路スイッチ接続端子４ｂを形成する。
（ｌ）接続金具１６の速結端子部ｃは、第４四路スイッチ接続端子６ｂを形成する。
（ｍ）接続金具１７の速結端子部ｂは、第６三路スイッチ接続端子４ｃを形成する。
（ｎ）接続金具１７の速結端子部ｃは、第３四路スイッチ接続端子６ａを形成する。
（ｏ）接続金具１８の速結端子部ｂは、接地用の接続端子１ｃを形成する。
（ｐ）接続金具１８の速結端子部ｃは、接地用の接続端子２ｃを形成する。
【００２３】
カバー部材２２は、熱硬化性の樹脂材料で形成してあり、ケース２１の開口を閉塞するようにしてケース２１に締結あるいはかしめられる。このカバー部材２２には、内部に形成される接続部１〜６（図４参照）に対応して、スライド案内孔２６が形成してある。
【００２４】
各スライド案内孔２６には、それぞれ一組の対称な形状のスライド部材２７が摺動自在に装着してある。
各スライド部材２７の一端には、図７に示すように屈曲形状のばね状部２７ａが延出しており、このばね状部２７ａをカバー部材２２の下面に形成したリブに係合させてある。これにより、一組のスライド部材２７は付勢され、スライド案内孔２６の中央部で互いに当接する。また、各スライド部材２７の下部には、上記当接面側が低く、ばね状部の延出端方向に向かって徐々に高くなっていく勾配面２７ｂが形成してある。
【００２５】
そして、一組のスライド部材２７とこれに対向する速結端子部ｂ，ｃとの間の空間には、それぞれ解除部材２８が設けてある。解除部材２８の上部には、スライド部材２７に形成した勾配面２７ｂと逆向きの勾配面２８ａが形成してあり、これらの勾配面２７ｂ，２８ａを互いに摺接させてある。
さらに、解除部材２８の下部には、速結端子部ｂ，ｃに配設した押えばね１９と対面する三箇所の部位に押圧突起２８ｂが形成してあり、これらの押圧突起２８ｂが押えばね１９の挾持端と接触している。
【００２６】
次に、上述した構成の配線器具の組立方法について説明する。
まず、ケース２１内の組込空間に各絶縁部材３０を装着する。このとき、絶縁部材３０の嵌合凸部３１をケース２１の電線挿入窓２３に嵌め込み、嵌合凸部３１に設けた電線挿入孔３２が、ケース２１の両側面にそれぞれ開口するようにする（図５，図６参照）。
【００２７】
続いて、構成すべき配線回路（図９）を参照して、絶縁部材３０の速結端子配置部３３…に、各接続金具１１〜１８の速結端子部ｂ，ｃをそれぞれ配置する。次いで、速結端子部ｂ，ｃに配設した押えばね１９の上に解除部材２８の押圧突起２８ｂを配置する。一方、カバー部材２２のスライド案内孔２６には、一組のスライド部材２７を嵌め込んでおく。
【００２８】
そして、スライド部材２７の勾配面２７ｂを解除部材２８の勾配面２８ａに摺接させた状態で、カバー部材２２をケース２１の開口部分に装着する。カバー部材２２の装着は、ねじによる締結やかしめ手段によって行なうが、このとき、ケース２１に反りがあっても、ケース２１は可塑性樹脂材料で成形してあるので柔軟に対応し、過大な内部応力の発生を防止でき、破損のおそれがない。
【００２９】
配線器具は、例えば屋内の天井裏などに固定され、図８に示すように、電源１０１、負荷１０２、第１，第２の三路スイッチ１０３，１０４、及び四路スイッチ１０５から導かれてきた電線（配線ケーブル）を所定の電線挿入孔３２に差し込むだけで、ケース２１内に構成した配線回路（図９）にしたがった接続状態を形成することができる。
【００３０】
ここで、図９に示すように、第１の三路スイッチ１０３のコモン端子１０３ａにつながる電線は、第１三路スイッチ接続端子３ａを形成する速結端子部と連通する電線挿入孔３２に挿入する。また、第１の三路スイッチ１０３の固定接点１０３ｂ，１０３ｃは、第２，第３三路スイッチ接続端子３ｂ，３ｃを形成する速結端子部と連通する電線挿入孔３２に挿入する。
【００３１】
一方、第２の三路スイッチ１０４のコモン端子１０４ａにつながる電線は、第４三路スイッチ接続端子４ａを形成する速結端子部と連通する電線挿入孔３２に挿入する。また、第２の三路スイッチ１０４の固定接点１０４ｂ，１０４ｃは、第５，第６三路スイッチ接続端子４ｂ，４ｃを形成する速結端子部と連通する電線挿入孔３２に挿入する。
【００３２】
電線挿入孔３２に差し込まれた電線は、速結端子部ｂ，ｃの天井面と押えばね１９の挾持端との間に挾持固定される（図５参照）。これにより速結端子部ｂ，ｃとの電気的接続状態が形成され、その結果、各接続金具１１〜１８で形成した配線回路に沿った屋内配線を容易に実現することができる。
【００３３】
速結端子部ｂ，ｃに挾持固定してある電線を取り外すときは、図７に示すように、カバー部材２２に設けた一組のスライド部材２７の境界部に、マイナスドライバなどの工具Ｔを差し込み、続いて回転させるだけでよい。
すなわち、工具Ｔの回転によって各スライド部材２７が拡開する方向に摺動する。この動作に伴いスライド部材２７の勾配面２７ｂが、解除部材２８の勾配面２８ａを押えばね１９の方向に押圧し、その押圧力によって解除部材２８が押し込まれ、押えばね１９の挾持端を変形させる。これにより、速結端子部ｂ，ｃの天井面と押えばね１９の挾持端とによる電線の挾持状態が解除されるので、電線を電線挿入孔３２から引き抜くことができる。
【００３４】
この電線の取り外しは、電線挿入孔３２と離れた部位（カバー部材２２の表面）に設けてあるスライド部材２７に対しての作業となるので、差し込まれた電線に煩わされることなく、容易かつ迅速に行なうことができる。また、カバー部材２２側を表面にした状態で屋内の壁面などに固定すれば、スライド部材２７と対面して電線の取外し作業を行なうことができ、一層作業が容易となる。
【００３５】
なお、この発明は上述した実施の形態に限定されるものではなく、特許請求の範囲に記載された発明の技術的範囲内で、種々の変形または応用が可能である。例えば、第１，第２の四路スイッチ接続部５，６には、複数の四路スイッチを直列に接続することもできる。
【００３６】
【発明の効果】
以上説明したように、この発明の配線器具によれば、電源と負荷との間を三路スイッチ及び四路スイッチによって開閉可能な屋内配線を容易に施工することができる。
【図面の簡単な説明】
【図１】この発明の実施形態に係る配線器具の分解斜視図である。
【図２】同じく平面図である。
【図３】図２の矢視Ａ−Ａ線図である。
【図４】カバー部材を取外した状態の平面図である。
【図５】図２のＢ−Ｂ線断面図である。
【図６】図２の矢視Ｃ−Ｃ線図である。
【図７】図２のＤ−Ｄ線断面図である。
【図８】電源、負荷、三路スイッチ、及び四路スイッチの接続関係を示す平面図である。
【図９】本発明に係る配線器具により構成される配線回路を示す図である。
【図１０】電源と負荷との間を三路スイッチ及び四路スイッチによって開閉可能な屋内配線の例を示す図である。
【符号の説明】
１：電源接続部
１ａ：第１電源接続端子１ｂ：第２電源接続端子
２：負荷接続部
２ａ：第１負荷接続端子２ｂ：第２負荷接続端子
３：第１の三路スイッチ接続部
３ａ：第１三路スイッチ接続端子
３ｂ：第２三路スイッチ接続端子
３ｃ：第３三路スイッチ接続端子
４：第２の三路スイッチ接続部
４ａ：第４三路スイッチ接続端子
４ｂ：第５三路スイッチ接続端子
４ｃ：第６三路スイッチ接続端子
５：第１の四路スイッチ接続部
５ａ：第１四路スイッチ接続端子
５ｂ：第２四路スイッチ接続端子
６：第２の四路スイッチ接続部
６ａ：第３四路スイッチ接続端子
６ｂ：第４四路スイッチ接続端子
１１〜１８：接続金具
１９：押えばね２０：器体
２１：ケース２２：カバー部材
２３：電線挿入窓２４：組込空間
２５：リブ２６：スライド案内孔
２７：スライド部材２８：解除部材
３０：絶縁部材３１：嵌合凸部
３２：電線挿入孔３３：速結端子配置部
３４：絶縁壁[0001]
BACKGROUND OF THE INVENTION
The present invention provides a wiring apparatus for forming indoor wiring that is provided at a branch point of a power source, a load, a three-way switch, and a four-way switch, and that can be opened and closed by the three-way switch and the four-way switch between the power source and the load. About.
[0002]
[Prior art]
Wiring fixtures installed at the branch point of indoor wiring are generally called joint boxes, and in recent years indoor wiring work can be performed easily by simply connecting the power supply, load, and switch to this joint box. Has become widespread.
That is, the wiring device (joint box) is preliminarily equipped with a wiring circuit corresponding to the application, and has a structure in which connection wiring between the power source, the load, and the switch can be realized inside the wiring device.
[0003]
[Problems to be solved by the invention]
Now, in order to turn on and off loads such as lighting in various places indoors, three-way switches 103 and 104 and a four-way switch 105 are used between a power source 101 and a load 102 as shown in FIG. It is necessary to form indoor wiring. This type of indoor wiring (hereinafter sometimes referred to as “wiring for operation in various places”) is well known, but conventional wiring equipment (joint boxes) can be operated in various places by combining this three-way switch and four-way switch. There has been no proposal of a configuration that can form a wiring for use.
[0004]
This seems to be due to the fact that conventional wiring equipment (joint boxes) is developed and designed to manage the wiring of each room in the room, but in any case this kind of operation in various places If there is a wiring device (joint box) corresponding to the wiring, there is no doubt that the construction work will be easier.
The present invention has been made in view of such circumstances, and an object thereof is to provide a wiring apparatus capable of easily constructing indoor wiring that can be opened and closed by a three-way switch and a four-way switch between a power source and a load. And
[0005]
[Means for Solving the Problems]
FIG. 9 is a diagram showing a circuit configuration example of the wiring device according to the present invention. The configuration of the present invention will be described with reference to FIG.
That is, in order to achieve the above object, the wiring device according to the present invention connects the power supply connecting portion 1 for connecting at least two wiring cables connected to the power source 101 and the load connecting at least two wiring cables connected to the load 102. Connects the connection unit 2 with the three wiring cables connected to the first three-way switch 103 and the first three-way switch connection unit 3 that connects the three wiring cables connected to the first three-way switch 103. Connect the second three-way switch connection unit 4, the first four-way switch connection unit 5 that connects two wiring cables connected to the four-way switch 105, and another two wiring cables connected to the four-way switch 105. The container is provided with a second four-way switch connection unit 6 to be connected, and the first and second three-way switches 103 and 104 or the four-way switch 105 can be operated between the connection units 1 to 6. Ri is a configuration of forming a wiring circuit that opens and closes between the power source 101 and the load 102.
[0006]
For example, the following connection terminals are provided in each of the connection portions.
(1) First and second power connection terminals 1a and 1b are connected to the power connection 1
(2) First and second load connection terminals 2a and 2b are connected to the load connection portion 2.
(3) The first to third three-way switch connection terminals 3a, 3b, 3c are connected to the first three-way switch connection unit 3.
(4) The fourth to sixth three-way switch connection terminals 4a, 4b, 4c are connected to the second three-way switch connection unit 4.
(5) First and second four-way switch connection terminals 5a and 5b are connected to the first four-way switch connection portion 5.
(6) The third four-way switch connection terminals 6a and 6b are connected to the second four-way switch connection portion 6.
[0007]
And the said wiring circuit can be formed with each following connection metal fitting, for example.
(A) Connection fitting 11 for electrically connecting the first power supply connection terminal 1a and the first three-way switch connection terminal 3a.
(B) A connection fitting 12 for electrically connecting the second power connection terminal 1b and the second load connection terminal 2b.
(C) Connection fitting 13 for electrically connecting the second three-way switch connection terminal 3b and the second four-way switch connection terminal 5b.
(D) Connection fitting 14 for electrically connecting the third three-way switch connection terminal 3c and the first four-way switch connection terminal 5a.
(E) Connection fitting 15 for electrically connecting the first load connection terminal 2a and the fourth three-way switch connection terminal 4a
(F) Connection fitting 16 for electrically connecting the fifth three-way switch connection terminal 4b and the fourth four-way switch connection terminal 6b.
(G) Connection fitting 17 for electrically connecting the sixth three-way switch connection terminal 4c and the third four-way switch connection terminal 6a
[0008]
With this configuration, the three-way switches 103 and 104 connected to the first and second three-way switch connections 3 and 4, or the four-way switches connected to the first and second four-way switch connections 5 and 6 With the operation 105, the power supply 101 and the load 102 can be opened and closed.
[0009]
Here, the power supply connection portion 1, the first three-way switch connection portion 3, and the first four-way switch connection portion 5 are formed side by side on one side of the container body, and the load connection portion 2 and the second connection portion 2. The three-way switch connection portion 4 and the second four-way switch connection portion 6 are preferably formed side by side on the other side of the container. Furthermore, the power connection 1 and the load connection 2, the first three-way switch connection 3 and the second three-way switch connection 4, and the first four-way switch connection 5 and the second four-way switch connection. The parts 6 are preferably formed at symmetrical positions.
[0010]
By arranging the connection portions in this way, the connection fittings 11, 13, 15, 16 of (a), (c), (e), and (f) can have the same shape, and The connection fittings 14 and 17 of (D) and (G) can also have the same shape. Therefore, it is possible to reduce the number of parts by using common connection fittings and thus to reduce the product cost.
[0011]
The power connection 1 and the load connection 2 may be provided with ground connection terminals 1 c and 2 c, respectively, and the ground connection terminals 1 c and 2 c may be electrically connected by the ground connection fitting 18. In this case, if the grounding connection fitting 18 has the same shape as the connection fitting 12 of (b) above, the number of parts can be reduced.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 is an exploded perspective view of a wiring device according to an embodiment of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a view taken along the line AA in FIG. 2, and FIG. 5 is a cross-sectional view taken along line BB in FIG. 2, FIG. 6 is a cross-sectional view taken along line CC in FIG. 2, and FIG. 7 is a cross-sectional view taken along line DD in FIG. In these drawings, the same or corresponding parts as those shown in FIG. 9 are given the same reference numerals.
[0013]
As shown in FIG. 1, in the wiring device of this embodiment, a case 21 and a cover member 22 constitute a container body 20, and an insulating member 30 and connection fittings 11 to 18 are provided inside the container body 20. ing.
The case 21 has a thin housing structure with an upper surface or a bottom surface (upper surface in the drawing) opened, and wire insertion windows 23 are formed at three locations on opposite side surfaces. Inside the case 21, a built-in space 24 for the insulating member 30 is formed separately from each side surface with a central rib 25 as a boundary. Since the case 21 is integrally formed of a plastic resin material, the case 21 has flexibility with respect to external force, and does not generate excessive internal stress even when a cover member 22 described later is mounted. It is strong against the impact force and has little risk of breakage.
[0014]
One set (two) of the insulating members 30 having the same shape is prepared. These insulating members 30 are integrally formed of an insulating thermosetting resin material. The insulating member 30 is formed with fitting protrusions 31 at three locations corresponding to the wire insertion window 23 of the case 21. Each fitting convex part 31 is made into the dimension shape each fitted to the electric wire insertion window 23 formed in the single side | surface of case 21. As shown in FIG. Each of the fitting convex portions 31 is provided with three electric wire insertion holes 32 arranged side by side.
[0015]
And in the part continuing from the inner side opening part of each electric wire insertion hole 32, the quick connection terminal arrangement | positioning part 33 for arrange | positioning the quick connection terminal parts b and c of 11-18 of each connection metal fitting mentioned later without rattling. Is formed. Each quick connection terminal arrangement portion 33 is partitioned by an insulating wall 34.
[0016]
The pair of insulating members 30 are mounted symmetrically in the respective incorporation spaces 24 of the case 21. At this time, the fitting convex portion 31 of the insulating member 30 is fitted into the electric wire insertion window 23 of the case 21 so that the electric wire insertion holes 32 provided in the fitting convex portion 31 respectively open on both side surfaces of the case 21 ( FIG. 5 and FIG. 6).
[0017]
In this embodiment, the wiring circuit shown in FIG.
Of these, the connection fittings 11, 13, 15 and 16 have the same shape, and a band-shaped connection bridge portion a and quick connection terminal portions b and c extending from both ends of the connection bridge portion a with a step. have. Further, the connection fittings 14 and 17 have the same shape, and have a strip-like connection bridge portion a and quick connection terminal portions b and c extending with steps from both ends of the connection bridge portion a. Yes.
The connection fittings 11, 13, 15, 16 and the connection fittings 14, 17 are formed by punching a metal plate using, for example, a press machine and then bending the stepped portions and the quick connection terminal portions b, c. Thus, each part is integrally formed.
[0018]
The connection fittings 12 and 18 have the same shape, and have a strip-like connection bridge portion a and quick connection terminal portions b and c extending from both ends of the connection bridge portion a. The connection brackets 12 and 18 are not provided with a step at the connection bridge portion a, and when incorporated in the body 20, the connection bridge portion a can be arranged so as to intersect with the connection bridge portion a of the connection brackets 11 and 15. It is.
Each of the connection fittings 12 and 18 is also integrally formed by punching out a metal plate using a press machine, for example, and then bending the quick connection terminal portions b and c.
[0019]
Now, as described above, the pair of insulating members 30 incorporated symmetrically into the case 21 are of the same shape to reduce the production cost and improve the productivity. As described above, as a result of symmetrically incorporating the insulating members having the same shape, the quick connection terminal arrangement portions 33 for arranging the quick connection terminal portions b and c are reversed.
Therefore, in particular, the connection fittings 12 and 18 include the quick connection terminal portion b arranged in the quick connection terminal arrangement portion 33 of the one insulating member 30 and the quick connection terminal arranged in the quick connection terminal arrangement portion 33 of the other insulating member 30. The parts c are shaped so as to be opposite to each other.
[0020]
A structure in which a presser spring 19 of an electric wire is inserted into the quick connection terminal portions b and c of each connection fitting 11 to 18 and the electric wire is held between the presser spring 19 and the ceiling surface of the quick connection terminal portions b and c, It has become. Thus, the quick connection terminal portions b and c of the connection fittings 11 to 18 into which the presser spring 19 is inserted correspond to the predetermined quick connection terminal arrangement formed in the insulating member 30 corresponding to the wiring circuit shown in FIG. It arranges in part 33. In this arrangement state, the side end surfaces (opened for electric wire insertion) of the respective quick connection terminal portions b and c face the electric wire insertion hole 32 of the insulating member 30.
[0021]
As shown in FIG. 4, the quick connection terminal arrangement portion 33 in which the quick connection terminal portions b and c of the connection fittings 11 to 18 are arranged forms the connection portions 1 to 6 in the wiring circuit shown in FIG. 9.
[0022]
Summarizing the mutual relationship between the quick connection terminal portions b and c of the connection fittings 11 to 18 arranged in the quick connection terminal arrangement portion 33 and the connection terminals in the wiring circuit shown in FIG. 9, see FIG. That is,
(A) The quick connection terminal portion b of the connection fitting 11 forms the first power connection terminal 1a.
(B) The quick connection terminal portion c of the connection fitting 11 forms the first three-way switch connection terminal 3a.
(C) The quick connection terminal portion b of the connection fitting 12 forms a second power connection terminal 1b.
(D) The quick connection terminal portion c of the connection fitting 12 forms the second load connection terminal 2b.
(E) The quick connection terminal portion b of the connection fitting 13 forms the second three-way switch connection terminal 3b.
(F) The quick connection terminal portion c of the connection fitting 13 forms a second four-way switch connection terminal 5b.
(G) The quick connection terminal portion b of the connection fitting 14 forms a third three-way switch connection terminal 3c.
(H) The quick connection terminal portion c of the connection fitting 14 forms a first four-way switch connection terminal 5a.
(I) The quick connection terminal portion b of the connection fitting 15 forms the first load connection terminal 2a.
(J) The quick connection terminal portion c of the connection fitting 15 forms a fourth three-way switch connection terminal 4a.
(K) The quick connection terminal portion b of the connection fitting 16 forms a fifth three-way switch connection terminal 4b.
(L) The quick connection terminal portion c of the connection fitting 16 forms a fourth four-way switch connection terminal 6b.
(M) The quick connection terminal portion b of the connection fitting 17 forms a sixth three-way switch connection terminal 4c.
(N) The quick connection terminal portion c of the connection fitting 17 forms the third four-way switch connection terminal 6a.
(O) The quick connection terminal portion b of the connection fitting 18 forms a connection terminal 1c for grounding.
(P) The quick connection terminal portion c of the connection fitting 18 forms a connection terminal 2c for grounding.
[0023]
The cover member 22 is formed of a thermosetting resin material, and is fastened or caulked to the case 21 so as to close the opening of the case 21. The cover member 22 is formed with a slide guide hole 26 corresponding to the connecting portions 1 to 6 (see FIG. 4) formed inside.
[0024]
A pair of symmetrical slide members 27 are slidably mounted in each slide guide hole 26.
As shown in FIG. 7, a bent spring-like portion 27 a extends at one end of each slide member 27, and this spring-like portion 27 a is engaged with a rib formed on the lower surface of the cover member 22. As a result, the pair of slide members 27 are urged and come into contact with each other at the center of the slide guide hole 26. In addition, a slope surface 27b is formed in the lower part of each slide member 27. The slope surface 27b is low on the contact surface side and gradually increases toward the extending end direction of the spring-like portion.
[0025]
A release member 28 is provided in each of the spaces between the pair of slide members 27 and the quick connection terminal portions b and c facing the pair of slide members 27. On the upper part of the release member 28, a slope surface 28a opposite to the slope surface 27b formed on the slide member 27 is formed, and these slope surfaces 27b and 28a are in sliding contact with each other.
Further, on the lower part of the release member 28, press protrusions 28 b are formed at three portions facing the presser springs 19 disposed on the quick connection terminal portions b and c, and these presser protrusions 28 b are formed on the presser springs 19. It is in contact with the holding end.
[0026]
Next, a method for assembling the wiring device having the above-described configuration will be described.
First, each insulating member 30 is mounted in the built-in space in the case 21. At this time, the fitting convex portion 31 of the insulating member 30 is fitted into the electric wire insertion window 23 of the case 21 so that the electric wire insertion holes 32 provided in the fitting convex portion 31 respectively open on both side surfaces of the case 21 ( FIG. 5 and FIG. 6).
[0027]
Subsequently, with reference to the wiring circuit to be configured (FIG. 9), the quick connection terminal portions b and c of the connection fittings 11 to 18 are respectively arranged on the quick connection terminal arrangement portions 33. Next, the pressing protrusion 28b of the release member 28 is disposed on the presser spring 19 disposed on the quick connection terminal portions b and c. On the other hand, a set of slide members 27 are fitted into the slide guide holes 26 of the cover member 22.
[0028]
Then, the cover member 22 is attached to the opening portion of the case 21 in a state where the slope surface 27 b of the slide member 27 is in sliding contact with the slope surface 28 a of the release member 28. The cover member 22 is attached by means of fastening with screws or caulking means. At this time, even if the case 21 is warped, the case 21 is formed of a plastic resin material, so that it can be flexibly handled and an excessive internal stress. Can be prevented and there is no risk of damage.
[0029]
The wiring device is fixed to, for example, an indoor ceiling, and has been led from a power source 101, a load 102, first and second three-way switches 103 and 104, and a four-way switch 105 as shown in FIG. By simply inserting the electric wire (wiring cable) into the predetermined electric wire insertion hole 32, a connection state according to the wiring circuit (FIG. 9) configured in the case 21 can be formed.
[0030]
Here, as shown in FIG. 9, the electric wire connected to the common terminal 103a of the first three-way switch 103 is inserted into the electric wire insertion hole 32 communicating with the quick-connection terminal portion forming the first three-way switch connection terminal 3a. To do. Further, the fixed contacts 103b and 103c of the first three-way switch 103 are inserted into the electric wire insertion holes 32 communicating with the quick connection terminal portions forming the second and third three-way switch connection terminals 3b and 3c.
[0031]
On the other hand, the electric wire connected to the common terminal 104a of the second three-way switch 104 is inserted into the electric wire insertion hole 32 communicating with the quick-connection terminal portion forming the fourth three-way switch connection terminal 4a. The fixed contacts 104b and 104c of the second three-way switch 104 are inserted into the wire insertion holes 32 that communicate with the quick-connection terminal portions that form the fifth and sixth three-way switch connection terminals 4b and 4c.
[0032]
The electric wire inserted into the electric wire insertion hole 32 is clamped and fixed between the ceiling surface of the quick connection terminal portions b and c and the clamping end of the presser spring 19 (see FIG. 5). As a result, an electrical connection state with the quick connection terminal portions b and c is formed, and as a result, indoor wiring along the wiring circuit formed by the connection fittings 11 to 18 can be easily realized.
[0033]
When removing the electric wire that is clamped and fixed to the quick connection terminal portions b and c, a tool T such as a flat-blade screwdriver is provided at the boundary portion of the pair of slide members 27 provided on the cover member 22 as shown in FIG. Just plug it in and then rotate it.
That is, each slide member 27 slides in the expanding direction by the rotation of the tool T. With this operation, the slope surface 27 b of the slide member 27 presses the slope surface 28 a of the release member 28 in the direction of the presser spring 19, and the release member 28 is pushed in by the pressing force, and the holding end of the presser spring 19 is deformed. . Thereby, since the holding state of the electric wire by the ceiling surface of the quick connection terminal portions b and c and the holding end of the presser spring 19 is released, the electric wire can be pulled out from the electric wire insertion hole 32.
[0034]
The removal of the electric wire is an operation for the slide member 27 provided in a portion (the surface of the cover member 22) away from the electric wire insertion hole 32, so that it is easy and quick without being bothered by the inserted electric wire. Can be done. Further, if the cover member 22 is fixed to an indoor wall surface or the like with the cover member 22 faced, the electric wire can be removed while facing the slide member 27, which makes the operation easier.
[0035]
The present invention is not limited to the above-described embodiment, and various modifications and applications are possible within the technical scope of the invention described in the claims. For example, a plurality of four-way switches can be connected in series to the first and second four-way switch connection portions 5 and 6.
[0036]
【The invention's effect】
As described above, according to the wiring device of the present invention, indoor wiring that can be opened and closed between the power source and the load by the three-way switch and the four-way switch can be easily constructed.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a wiring device according to an embodiment of the present invention.
FIG. 2 is a plan view of the same.
FIG. 3 is an arrow AA diagram in FIG. 2;
FIG. 4 is a plan view of a state where a cover member is removed.
5 is a cross-sectional view taken along line BB in FIG.
6 is a CC diagram of FIG.
7 is a cross-sectional view taken along the line DD in FIG.
FIG. 8 is a plan view showing a connection relationship among a power source, a load, a three-way switch, and a four-way switch.
FIG. 9 is a diagram showing a wiring circuit constituted by the wiring device according to the present invention.
FIG. 10 is a diagram showing an example of indoor wiring that can be opened and closed between a power source and a load by a three-way switch and a four-way switch.
[Explanation of symbols]
1: power connection 1a: first power connection 1b: second power connection 2: load connection 2a: first load connection 2b: second load connection 3: first three-way switch connection 3a: 1st 3 way switch connection terminal 3b: 2nd 3 way switch connection terminal 3c: 3rd 3 way switch connection terminal 4: 2nd 3 way switch connection part 4a: 4th 3 way switch connection terminal 4b: 5th 3 way Switch connection terminal 4c: Sixth three-way switch connection terminal 5: First four-way switch connection part 5a: First four-way switch connection terminal 5b: Second four-way switch connection terminal 6: Second four-way switch connection part 6a: Third four-way switch connection terminal 6b: Fourth four-way switch connection terminals 11 to 18: Connection bracket 19: Presser spring 20: Body 21: Case 22: Cover member 23: Electric wire insertion window 24: Built-in space 25 : Rib 26: Slide guide hole 2 : Sliding member 28: the release member 30: insulating member 31: engaging projection 32: wire insertion hole 33: quick connect terminal arrangement portion 34: insulating walls

Claims

Connect a power supply connection section that connects at least two distribution cables connected to the power supply, a load connection section that connects at least two distribution cables connected to the load, and three distribution cables connected to the first three-way switch A first three-way switch connection part, a second three-way switch connection part that connects three wiring cables connected to the second three-way switch, and a second one that connects two wiring cables connected to the four-way switch A four-way switch connection part of 1 and a second four-way switch connection part for connecting two other wiring cables connected to the four-way switch,
A wiring circuit that opens and closes between the power source and the load by operating the first and second three-way switches or the four-way switch is formed between the connection portions.
The power supply connection portion includes first and second power supply connection terminals,
The load connecting portion is connected to the first and second load connecting terminals,
The first three-way switch connection portion includes first to third three-way switch connection terminals,
The second three-way switch connection portion is connected to the fourth to sixth three-way switch connection terminals,
The first four-way switch connection portion is connected to the first and second four-way switch connection terminals.
In the wiring device in which the second four-way switch connection portion includes third and fourth four-way switch connection terminals, respectively.
A wiring device, wherein the wiring circuit is formed by the following fittings (a) to (g).
(A) A connection fitting for electrically connecting the first power supply connection terminal and the first three-way switch connection terminal
(B) A connection fitting for electrically connecting the second power connection terminal and the second load connection terminal
(C) Connection fitting for electrically connecting the second three-way switch connection terminal and the second four-way switch connection terminal
(D) A connection fitting for electrically connecting the third three-way switch connection terminal and the first four-way switch connection terminal.
(E) A connection fitting for electrically connecting the first load connection terminal and the fourth three-way switch connection terminal
(F) Connection fitting for electrically connecting the fifth three-way switch connection terminal and the fourth four-way switch connection terminal
(G) Connection fitting for electrically connecting the sixth three-way switch connection terminal and the third four-way switch connection terminal

The wiring device according to claim 1 , wherein
The power supply connection portion, the first three-way switch connection portion, and the first four-way switch connection portion are formed side by side on one side of the container body,
Forming the load connection portion, the second three-way switch connection portion, and the second four-way switch connection portion side by side on the other side of the vessel body,
And the power supply connection part and the load connection part, the first three-way switch connection part and the second three-way switch connection part, and the first four-way switch connection part and the second four-way switch connection part, A wiring device characterized by being formed at symmetrical positions.

The wiring device according to claim 2 ,
The (a), (c), (e), and (f) connection fittings are formed in the same shape, and the (d) and (g) connection fittings are formed in the same shape. Wiring equipment to do.

In the wiring appliance according to any one of claims 1 to 3 ,
A wiring device characterized in that grounding connection terminals are provided in the power supply connection part and the load connection part, respectively, and these grounding connection terminals are electrically connected by a grounding connection fitting.

The wiring device according to claim 4 , wherein
The grounding connection fitting is formed in the same shape as the (b) connection fitting.