JP4030730B2

JP4030730B2 - Switch device

Info

Publication number: JP4030730B2
Application number: JP2001165796A
Authority: JP
Inventors: 俊晴森; 勝弘芦名
Original assignee: Alps Electric Co Ltd
Current assignee: Alps Alpine Co Ltd
Priority date: 2001-05-31
Filing date: 2001-05-31
Publication date: 2008-01-09
Anticipated expiration: 2021-05-31
Also published as: DE60232700D1; EP1263008A2; CN1400616A; CN1215506C; JP2002358850A; EP1263008A3; EP1263008B1

Description

【０００１】
【発明の属する技術分野】
本発明は、電子機器の検出スイッチ付き電源スイッチとして使用されるスイッチ装置に係り、特に検出スイッチ部を電源スイッチ部と同一のケースに収納した内蔵タイプのスイッチ装置の構造に関する。
【０００２】
【従来の技術】
従来の検出スイッチ付き電源スイッチの構造としては、既存の検出スイッチを電源スイッチの前部、又は後部などに連結部材を使用して接続、固定して形成した外付けタイプのスイッチ装置や、電源スイッチ部の本体ケース内に既存の検出スイッチのスイッチ部を組み込んで形成した内蔵タイプのスイッチ装置が知られている。
【０００３】
外付けタイプのスイッチ装置は、既存の検出スイッチをそのまま使用し、検出スイッチの操作部となる操作レバーの形状を一部変更することによって、電源スイッチの操作部に連設されたスライド部材での押圧操作を可能とし、電源スイッチの操作部が押圧操作された場合に、検出スイッチも同時に操作されるように連結部材によって連結された構造となっている。この場合、検出スイッチ部と電源スイッチ部とは独立しており、それぞれ個別のケースから形成されたものとなっている。
【０００４】
また、内蔵タイプのスイッチ装置は、既存の検出スイッチから操作レバー及びケース部分を削除して、スイッチ部を取り出し、このスイッチ部のみ電源スイッチのケース内に組み込んで形成したもので、電源スイッチ側のケースと、必要に応じて操作部となるスライド部材の形状を一部変更することによって、検出スイッチの切り換えを可能にしている。この場合、検出スイッチ部と電源スイッチ部とは同一のケース内に内蔵されており、連結部材などを使用する必要がなくなるものとなる。
【０００５】
【発明が解決しようとする課題】
しかしながら、上述した従来の検出スイッチ付き電源スイッチの構造においては、外付けタイプのスイッチ装置では、既存の検出スイッチを連結部材などで電源スイッチの前後に連結していたため、検出スイッチ部の取付部の強度の問題や、オン位置精度の問題、また、部品点数の増加や組み立て作業性でコストアップしてしまう等の問題があった。
【０００６】
また、外付けタイプ、内蔵タイプの両方とも、スライド部材の移動ストロークの問題や、絶縁距離を確保しなければならない安全規格との関係で、外形サイズが大きくなってしまうという問題があった。
【０００７】
したがって、本発明では上述した問題点を解決し、可動側接点に捻りコイルばねを使用することにより、検出スイッチ部の構成を簡易化でき、小型化、組立性向上、コストの低減ができると共に、オン位置精度や取付強度の向上が図れるスイッチ装置を提供することを目的とする。
【０００８】
【課題を解決するための手段】
上記課題を解決するために本発明では第１の手段として、第１の固定側接点と、この第１の固定側接点と接離される第１の可動側接点を有する導体板と、この導体板を支持する中央端子と、前記導体板と前記中央端子との間に屈曲して配設され、前記導体板を前記中央端子に揺動可動に支持するばね部材とからなる第１のスイッチ部と、第２の固定側接点と、この第２の固定側接点と接離される第２の可動側接点とからなる第２のスイッチ部と、前記導体板を前記ばね部材のばね性によりスライド移動方向に対して略垂直な方向へ変位させて前記第１の可動側接点を前記第１の固定側接点に接離させると共に、前記第２の可動側接点を変位させて前記第２の固定側接点に接離させるスライド部材と、このスライド部材を突出位置とロック位置に移動可能に保持すると共に、前記第１のスイッチ部及び前記第２のスイッチ部を内蔵するケースとを備え、前記第２の固定側接点は、前記ケースの内底面側に対向して配設された一対の固定端子からなり、前記第２の可動側接点は、前記スライド部材の下面側に配設された一対の前記固定端子と接触されるアーム部を有する捻りコイルばねからなり、前記スライド部材の下面側には、突起からなるガイド部と、このガイド部を挟んで一対のフック状の保持部を形成し、捻りコイルばねからなる前記第２の可動側接点の巻回部を前記ガイド部に挿通して係止すると共に、一対の前記アーム部を前記保持部に弾接し、初期の状態では、前記第２の可動側接点と一対の前記固定端子からなる前記第２の固定側接点とが一定の間隔をおいて離間されて接点はオフ状態であり、前記スライド部材が押し込まれると前記第２の可動側接点が前記第２の固定側接点と当接して接点がオン状態になり、さらに前記スライド部材が押し込まれても前記第２の可動側接点の一対の前記アーム部が撓んで前記第２の固定側接点と摺接しながら当接して接点がオン状態に維持される構成とした。
【０００９】
また、第２の手段として、前記第２の可動側接点は、前記ケース内の前記スライド部材の上面側に形成されたロック手段の形成面とは対向する前記スライド部材の下面側に配設された構成とした。
【００１１】
また、第３の手段として、前記ケースの内底部には、前記第１のスイッチ部と前記第２のスイッチ部との間に隔壁を形成した構成とした。
【００１２】
また、第４の手段として、前記第１のスイッチ部が一次側のＡＣ電源切り換え用の電源スイッチであり、前記第２のスイッチ部が二次側のＤＣ電源切り換え用の検出スイッチである構成とした。
【００１３】
【発明の実施の形態】
以下、本発明のスイッチ装置の実施の形態を図１乃至図７に示す。図１はスイッチ装置のオフ時の縦断面図、図２は同じくカバーとスライド部材の一部を破断した状態の平面図、図３はスイッチ装置の検出スイッチ部のオン時の縦断面図、図４は同じくカバーとスライド部材の一部を破断した状態の平面図、図５は検出スイッチ部と電源スイッチ部とがオン時の縦断面図、図６は同じくカバーとスライド部材の一部を破断した状態の平面図、図７は検出スイッチの可動側接点とスライド部材の係合状態を示す部分斜視図である。
【００１４】
図において、ケース１は、合成樹脂などの絶縁材で上面が開口された箱状に形成されている。このケース１の開口内にはそれぞれが隔壁１ａによって分断されて後方に位置する第１の収納部１ｂと、前方に位置する第２の収納部１ｃが形成されている。前記第１の収納部１ｂの内底面には、上面に第１の固定側接点２ａを有する導体の金属板からなる周辺端子２と、この周辺端子２に隣接して同じく導体の金属板からなる中央端子３がそれぞれ配設されている。また、前記第２の収納部１ｃの内底面には、同じく導体の金属板からなる固定端子４、４が対向されて配設されており、この固定端子４、４の先端部がそれぞれ第２の固定側接点４ａ、４ａを形成している。
【００１５】
前記第１、及び第２の収納部１ｂ、１ｃには後述するスライド部材１１が収納され、スライド移動可能に配設されている。また、前記ケース１の先端側には、回路基板などへ取り付けるための取付脚５ａを有する金属板からなるフレーム５が取り付けられており、後端側には、後述するカバー１３を取り付ける取付突部１ｄが形成されている。また、前記ケース１の先端側には、後述するスライド部材１１のロックカム（図示せず）に一端側が係合してスライド部材１１を押し込み位置にロックする、ロックピン（図示せず）の他端側を軸支する軸孔１ｅが設けられており、この軸孔１ｅの更に先端側には、後述するスライド部材１１を復帰位置に付勢する復帰ばね６の一端側が係止される復帰ばね係止部１ｆが延設されている。
【００１６】
前記中央端子３には、後述する支持アーム７を係止する支持アーム係止用突起３ａと、後述する反転用コイルばね１０を係止するばね係止用突起３ｂがそれぞれ立設されており、この係止用突起３ａ、３ｂに後述する支持アーム７と反転用コイルばね１０の一端側がそれぞれ係止されるものとなっている。また、この係止部は、後述する支持アーム７及び反転用コイルばね１０の線径に合わせてそれぞれ円弧状に形成されている。
【００１７】
支持アーム７は、導電性のばね性を有する丸線材で略Ｕ字状に形成され、前記支持アーム係止用突起３ａに係止される係止軸と、この係止軸から延設され撓み可能に対向された一対のアーム片を備えており、このアーム片の先端側が後述する導体板８の側壁８ａに設けられた係止孔８ｃに係合して、導体板８と一体に回動可能に係合されるようになっている。
【００１８】
導体板８は、同じく導体の金属板からなり、両側部には側壁８ａが対向されて設けられ、この導体板８の中央には、窓孔部８ｂが設けられている。前記側壁８ａには、一対の係止孔８ｃが設けられ、この係止孔８ｃに前記支持アーム７が回動可能に係合されるものとなっている。また、前記窓孔部８ｂ内には、前記支持アーム７が遊嵌されると共に、前記支持アーム係止用突起３ａや後述する反転用コイルばね１０なども遊嵌されるものとなっている。
【００１９】
また、前記導体板８の一端側には、第１の可動側接点９が固着されている。また、前記第１の可動側接点９が固着される前記導体板８の一端側に前記係止孔８ｃが形成されて、前記支持アーム７が係合されるものとなっており、他端側には後述する反転用コイルばね１０の一端側が係止されて、前記中央端子３に可動に取り付けられるものとなっている。また、前記他端側には、後述するスライド部材１１の作動面部１１ｄと当接して前記導体板８をスライド移動方向に対して略垂直な方向へ変位させる円弧面からなる当接部８ｄが設けられている。
【００２０】
反転用コイルばね１０は、導電性のばね性を有する丸線材でコイル状に巻回されて形成され、一対のばね片を有し、一方のばね片は前記中央端子３のばね係止用突起３ｂに係止され、他方のばね片は前記導体板８の他端側に係止されている。前記反転用コイルばね１０は、前記中央端子３と前記導体板８との間に屈曲されて配設されており、前記導体板８は前記反転用コイルばね１０の付勢力によって前記第１の固定側接点２ａの配設位置（前記第１の収納部１ｂの内底面側）とは反対の方向へ付勢されたものとなっている。
【００２１】
前記導体板８の一端側に固着された前記第１の可動側接点９は、前記周辺端子２に設けられた第１の固定側接点２ａと接離可能なように対向して配設されており、この場合、前記中央端子３と、前記反転用コイルばね１０と、前記支持アーム７と、前記導体板８と、前記周辺端子２とで、第１のスイッチ部である一次側のＡＣ電源切り換え用の電源スイッチを構成している。
【００２２】
スライド部材１１は、合成樹脂などの絶縁材から形成されており、前記ケース１の第１の収納部１ｂ、に配設される基部１１ａと、この基部１１ａの先端に延設された操作部１１ｂとを備えている。前記基部１１ａには、前記導体板８や支持アーム７等を収容する導体板収容部１１ｃが設けられ、この導体板収容部１１ｃには、前記導体板８の当接部８ｄと摺接して前記導体板８をスライド移動方向に対して略垂直な方向へ変位させる、傾斜面からなる作動面部１１ｄが形成されている。また、前記導体板収容部１１ｃの上面側には、前記導体板８の先端部と当接して導体板８の位置を規制する突起部１１ｅが設けられている。
【００２３】
また、前記基部１１ａの先端側には、前記したロックピン（図示せず）が摺接されて、前記スライド部材１１を押し込み位置にロックするロックカム（図示せず）が形成されている。また、前記操作部１１ｂには、前記スライド部材１１を復帰位置に付勢する前記復帰ばね６を収納する復帰ばね収納部１１ｆが設けられている。
【００２４】
また、前記スライド部材１１の、前記ロックカムが形成された面とは対向する下面側には、円柱状の突起からなるガイド部１１ｇが形成されており、このガイド部１１ｇを挟んで両側部には一対のフック状の保持部１１ｈ、１１ｈが対向されて形成されている。このガイド部１１ｇには、導電性のばね性を有する丸線材でコイル状に巻回されて形成された捻りコイルばねからなる第２の可動側接点１２の巻回部１２ａが係止されており、また、この巻回部１２ａから延設された一対のアーム部１２ｂ、１２ｂが、前記保持部１１ｈ、１１ｈに弾接されて取り付けられたものとなっている。
【００２５】
また、一対の前記アーム部１２ｂ、１２ｂが、前記第２の収納部１ｃの内底面に配設された、一対の前記固定端子４、４の先端に設けられた前記第２の固定側接点４ａ、４ａと接離可能なように対向して配設されており、この場合、捻りコイルばねからなる前記第２の可動側接点１２と、一対の前記固定端子４、４の先端に設けられた前記第２の固定側接点４ａ、４ａとで、第２のスイッチ部である二次側のＤＣ電源切り換え用の検出スイッチを構成している。また、前記電源スイッチ部と前記検出スイッチ部とは、前記ケース１の内底部に設けられた前記隔壁１ａによって、それぞれが分断された状態で形成されたものとなっている。
【００２６】
このように、電源スイッチ部と検出スイッチ部との間に前記隔壁１ａを形成するようにしたことから、一次側の電源スイッチ部に発生するアークなどが、二次側の検出スイッチ部に影響を及ぼすことがないため、スイッチの信頼性が向上するものとなっている。
【００２７】
カバー１３は、合成樹脂などの絶縁材で方形状に形成され、前記ケース１の後端側の前記取付突部１ｄと係止される取付腕部１３ａと、前記ケース１の先端側に取り付けられた前記フレーム５とによって、前記ケース１の開口された前記第１、及び第２の収納部１ｂ、１ｃを覆うように取り付けられている。
【００２８】
前述したスイッチ装置の第１のスイッチ部の接点機構を組み立てる場合には、まず、前記ケース１の内底面に配設されている前記中央端子３に前記導体板８を取り付けることとなるが、この場合、前記導体板８に、前記支持アーム７を弾性付勢して係合するようにしてあるため、前記導体板８と支持アーム７が一体部品になっており、前記導体板８の窓孔部８ｂに前記中央端子３の支持アーム係止用突起３ａを遊嵌させて、前記支持アーム７を前記支持アーム係止用突起３ａに組み込むだけで、容易に前記中央端子３に前記導体板８を組み込むことができるようになっている。この時、前記導体板８が前記支持アーム係止用突起３ａに挿入ガイドされることで、位置決めされるものとなる。この状態から、前記反転用コイルばね１０を前記導体板８の窓孔部８ｂに遊嵌させた状態で、前記導体板８の他端部と前記中央端子３の前記ばね係止用突起３ｂとの間に、前記反転用コイルばね１０を屈曲させて係止させて第１のスイッチ部の組立は終了する。
【００２９】
この時、前記導体板８は前記反転用コイルばね１０の付勢力で前記第１の収納部１ａの前記周辺端子２が配設された方向とは反対の方向へ付勢された状態となり、前記第１の可動側接点９が固着された側の上端面側が、前記スライド部材１１の突起部１１ｅに当接し、他端側の前記当接部８ｄが前記作動面部１１ｄに当接することで、前記導体板８は前記第１の可動側接点９と第１の固定側接点２ａが一定の間隔を保持した状態で前記第１の収納部１ｂ内に略平行に配設された状態となっている。
【００３０】
また、前記スライド部材１１のロックカムが形成された面とは対向する下面側には、円柱状の突起からなるガイド部１１ｇと、このガイド部１１ｇを挟んで両側部に一対のフック状の保持部１１ｈ、１１ｈが対向されて形成されており、このガイド部１１ｇに、捻りコイルばねからなる前記第２の可動側接点１２の巻回部１２ａが係止されると共に、この巻回部１２ａから延設された一対のアーム部１２ｂ、１２ｂが、前記保持部１１ｈ、１１ｈに弾接されて取り付けられており、前記スライド部材１１が前記第１、及び第２の収納部１ｂ、１ｃに収納された時、一対の前記アーム部１２ｂ、１２ｂが、前記第２の収納部１ｃの内底面に配設された、一対の前記固定端子４、４の先端に設けられた前記第２の固定側接点４ａ、４ａと一定の間隔を保持した状態で対向して配設されることで、第２のスイッチ部が構成されるものとなっている。
【００３１】
この場合、図７に示すように、前記第２の可動側接点１２の一対の前記アーム部１２ｂ、１２ｂが、前記スライド部材１１の前記保持部１１ｈ、１１ｈに弾接されて取り付けられていることから、一体化できて組立が容易であるうえに、一対の前記アーム部１２ｂ、１２ｂに予めプリテンションがかかっているため、オン時の接点圧の確保が容易に得られるものとなっている。
【００３２】
次に、上述したスイッチ装置の動作を図１乃至図６で説明する。
図１、図２に示すように、初期の状態では前記導体板８は前記第１の可動側接点９が前記第１の固定側接点２ａと一定の間隔をおいて離間された状態で接点がオフ状態となっている。この状態では、前記導体板８は前記反転用コイルばね１０の付勢力で前記周辺端子２及び第１の固定側接点２ａとは反対の方向（上側）へ付勢された状態となっている。また、前記第２の可動側接点１２と第２の固定側接点４ａも一定の間隔をおいて離間されており接点はオフ状態となっている。
【００３３】
この状態から、前記スライド部材１１の操作部１１ｂが前記復帰ばね６の付勢力に抗して押し込まれると、図３、図４に示すように、前記スライド部材１１のガイド部１１ｇに係止された第２の可動側接点１２が共に後方に移動され、前記第２の可動側接点１２が前記第２の固定側接点４ａと当接して接点がオン状態となる。この時、前記スライド部材１１の作動面部１１ｄが前記導体板８の当接部８ｄを押圧するが、前記第１の可動側接点９と第１の固定側接点２ａは、まだ離間されており接点はオフ状態となっている。
【００３４】
この状態から前記スライド部材１１の操作部１１ｂが更に押し込まれると、図５、図６に示すように、前記スライド部材１１の作動面部１１ｄが前記導体板８の当接部８ｄを更に押圧し、前記導体板８の当接部８ｄ側を前記反転用コイルばね１０の付勢力に抗して前記第１の収納部１ｂの内底面側へ押し下げる。この時、前記反転用コイルばね１０と導体板８との係止部が、前記支持アーム７と中央端子３の係止部（前記支持アーム係止用突起３ａの係止部）と重なった時を境にして前記反転用コイルばね１０の付勢力の方向が下側へと反転し、前記導体板８は前記第１の収納部１ｂの内底面側に自走して前記第１の可動側接点９が前記第１の固定側接点２ａと当接して接点がオン状態となる。
【００３５】
この時、前記第２の可動側接点１２は、更に後方に移動するものとなるが、前記アーム部１２ｂ、１２ｂが前記第２の固定側接点４ａと当接した状態で自らの弾性力によって撓むこととなり、撓むことにより摺接しながら引き続き前記第２の固定側接点４ａと当接して接点がオン状態を維持するものとなっている。このように前記第２の可動側接点１２を捻りコイルばねで形成することにより、ロングストロークでのオン保持が可能となっており、摺接することにより接触部の安定化が図れるものとなっている。そして、前記スライド部材１１は、図示しないロックピンとロックカムの協働により押し込み位置へロックされるものとなる。
【００３６】
この状態から、ロックを解除する場合には、前記スライド部材１１の操作部１１ｂを更に押圧してやると、ロックピンがロックカムから外れて、前記スライド部材１１は前記復帰ばね６の付勢力で初期位置へ復帰するものとなる。この時、前記導体板８と反転用コイルばね１０との係止部が、前記支持アーム７と前記中央端子３との係止部（前記支持板係止用突起３ａの係止部）を越えると前記反転用コイルばね１０の付勢力の方向が上側へと反転し、前記導体板８は前記第１の収納部１ｂの内底面とは反対側に自走して前記第１の可動側接点９が前記第１の固定側接点２ａと離間して接点がオフ状態になると共に、前記第２の可動側接点１２も前記第２の固定側接点４ａ、４ａと離間して接点がオフ状態となり、図１、図２に示す初期状態へと復帰する。
【００３７】
上記した本発明の実施例によれば、二次側のＤＣ電源切り換え用の検出スイッチの接点部に、捻りコイルばねからなる前記第２の可動側接点１２を使用する構成としたことから、検出スイッチ部の構成を簡易化できると共に、小型化、コストの低減が図れ、更には捻りコイルばねの取り扱いが容易で変形しにくいため、組み立ての作業性も向上されるものとなっている。
【００３８】
また、一次側のＡＣ電源切り換え用の電源スイッチと、二次側のＤＣ電源切り換え用の検出スイッチの接点部を同一の前記ケース１内に内蔵し、このケース１に移動可能に収納される前記スライド部材１１のロックカムが形成された上面側と対向する下面側に、検出スイッチの前記第２の可動側接点部１２と前記第２の固定側接点部４ａを形成するようにしたことから、前記スライド部材１１の下面側のデットスペースを有効に活用することで、スイッチ装置の外形を小さくでき、安価対応が可能であると共に、検出スイッチを同一のケースに内蔵することにより取り付け部の強度やオン位置精度の向上も図れるものとなっている。
【００３９】
尚、上述した実施例では、検出スイッチの前記固定端子４及び前記第２の固定側接点４ａを導体の金属板で形成する構成としたが、これに変えて導体の線材で形成するようにしてもよく、この場合には、材料費が低減され、更にコストの低減が図れるものとなる。
【００４０】
また、検出スイッチの捻りコイルばねからなる前記第２の可動側接点１２を前記スライド部材１１の下面側に形成された前記ガイド部１１ｇに係止する構成としたが、これに変えて前記ケース１の第２収納部１ｃの内底面に前記ガイド部１１ｇを形成し、前記第２の可動側接点１２を係止するようにしてもよく、この場合にも、上述した構成と同様の効果が得られるのはもちろんである。
【００４１】
【発明の効果】
以上説明したように、本発明のスイッチ装置の構成は、第１の固定側接点と、この第１の固定側接点と接離される第１の可動側接点を有する導体板と、この導体板を支持する中央端子と、導体板と中央端子との間に屈曲して配設され、導体板を中央端子に揺動可動に支持するばね部材とからなる第１のスイッチ部と、第２の固定側接点と、この第２の固定側接点と接離される第２の可動側接点とからなる第２のスイッチ部と、導体板をばね部材のばね性によりスライド移動方向に対して略垂直な方向へ変位させて第１の可動側接点を第１の固定側接点に接離させると共に、第２の可動側接点を変位させて第２の固定側接点に接離させるスライド部材と、このスライド部材を突出位置とロック位置に移動可能に保持すると共に、第１のスイッチ部及び第２のスイッチ部を内蔵するケースとを備え、第２の固定側接点は、ケース内に対向して配設された一対の固定端子からなり、第２の可動側接点は、一対の固定端子と接触されるアーム部を有する捻りコイルばねからなることから、検出スイッチ部の構成を簡易化できると共に、小型化、コストの低減が図れ、更には捻りコイルばねの取り扱いが容易で変形しにくいため、組み立ての作業性も向上される。また、ロングストロークでのオン保持が可能となり、摺接することにより接触部の安定化が図れる。
【００４２】
また、一対の前記固定端子は、ケースの内底面側に配設され、第２の可動側接点は、ケース内のスライド部材の上面側に形成されたロック手段の形成面とは対向するスライド部材の下面側に配設されたことから、スライド部材の下面側のデットスペースを有効に活用することで、スイッチ装置の外形を小さくでき、安価対応が可能であると共に、検出スイッチを同一のケースに内蔵することにより取り付け部の強度やオン位置精度の向上も図れる。
【００４３】
また、スライド部材の下面側には、突起からなるガイド部と、このガイド部を挟んで一対のフック状の保持部を形成し、捻りコイルばねからなる第２の可動側接点の巻回部をガイド部に係止すると共に、一対のアーム部を保持部に弾接したことから、一体化できて組立が容易であるうえに、一対のアーム部に予めプリテンションがかかっているため、オン時の接点圧の確保が容易に得られる。
【００４４】
また、ケースの内底部には、第１のスイッチ部と第２のスイッチ部との間に隔壁を形成したことから、一次側の電源スイッチ部に発生するアークなどが、二次側の検出スイッチ部に影響を及ぼすことがないため、スイッチの信頼性が向上する。
【００４５】
また、第１のスイッチ部が一次側のＡＣ電源切り換え用の電源スイッチであり、第２のスイッチ部が二次側のＤＣ電源切り換え用の検出スイッチであることから、簡易な構成で小型、廉価対応の可能な検出スイッチ付きの電源スイッチが提供できる。
【図面の簡単な説明】
【図１】本発明の一実施例であるスイッチ装置のオフ時を示す縦断面図である。
【図２】本発明の同じくスイッチ装置のオフ時のカバーとスライド部材の一部を破断した状態を示す平面図である。
【図３】本発明のスイッチ装置の検出スイッチ部のオン時を示す縦断面図である。
【図４】本発明の同じくスイッチ装置の検出スイッチ部のオン時のカバーとスライド部材の一部を破断した状態を示す平面図である。
【図５】本発明のスイッチ装置の検出スイッチ部と電源スイッチ部のオン時を示す縦断面図である。
【図６】本発明の同じくスイッチ装置の検出スイッチ部と電源スイッチ部のオン時のカバーとスライド部材の一部を破断した状態を示す平面図である。
【図７】本発明の検出スイッチの可動側接点とスライド部材の係合状態を示す部分斜視図である。
【符号の説明】
１ケース
１ａ隔壁
１ｂ第１の収納部
１ｃ第２の収納部
１ｄ取付突部
１ｅ軸孔
１ｆ復帰ばね係止部
２周辺端子
２ａ第１の固定側接点
３中央端子
３ａ支持アーム係止用突起
３ｂばね係止用突起
４固定端子
４ａ第２の固定側接点
５フレーム
５ａ取付脚
６復帰ばね
７支持アーム
８導体板
８ａ側壁
８ｂ窓孔部
８ｃ係止孔
８ｄ当接部
９第１の可動側接点
１０反転用コイルばね（ばね部材）
１１スライド部材
１１ａ基部
１１ｂ操作部
１１ｃ導体板収納部
１１ｄ作動面部
１１ｅ突起部
１１ｆ復帰ばね収納部
１１ｇガイド部
１１ｈ保持部
１２第２の可動側接点（捻りコイルばね）
１２ａ巻回部
１２ｂアーム部
１３カバー
１３ａ取付腕部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a switch device used as a power switch with a detection switch of an electronic device, and more particularly to a structure of a built-in type switch device in which a detection switch portion is housed in the same case as a power switch portion.
[0002]
[Prior art]
As the structure of a conventional power switch with a detection switch, an external type switch device formed by connecting and fixing an existing detection switch to the front or rear of the power switch using a connecting member, or a power switch There is known a built-in type switch device that is formed by incorporating a switch portion of an existing detection switch in a main body case.
[0003]
The external type switch device uses the existing detection switch as it is, and changes the shape of the operation lever that becomes the operation part of the detection switch, so that it is a slide member connected to the operation part of the power switch. The structure is connected by a connecting member so that the pressing operation can be performed and the detection switch is also operated simultaneously when the operation portion of the power switch is pressed. In this case, the detection switch unit and the power switch unit are independent of each other and are formed from individual cases.
[0004]
The built-in type switch device is formed by removing the operating lever and the case part from the existing detection switch, taking out the switch part, and incorporating only this switch part in the case of the power switch. The detection switch can be switched by partially changing the shape of the case and, if necessary, the shape of the slide member serving as the operation unit. In this case, the detection switch part and the power switch part are built in the same case, and it becomes unnecessary to use a connecting member or the like.
[0005]
[Problems to be solved by the invention]
However, in the structure of the conventional power switch with the detection switch described above, in the external switch device, the existing detection switch is connected before and after the power switch by a connecting member or the like. There were problems such as strength problems, on-position accuracy problems, an increase in the number of parts, and cost increase due to assembly workability.
[0006]
In addition, both the external type and the built-in type have a problem that the outer size becomes large due to the problem of the movement stroke of the slide member and the safety standard that must ensure the insulation distance.
[0007]
Therefore, in the present invention, by solving the above-mentioned problems and using a torsion coil spring for the movable contact, the configuration of the detection switch part can be simplified, and downsizing, assembling improvement, and cost reduction can be achieved. It is an object of the present invention to provide a switch device that can improve on-position accuracy and mounting strength.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides, as a first means, a conductor plate having a first fixed side contact, a first movable side contact that is contacted with and separated from the first fixed side contact, and the conductor plate. A first switch portion comprising: a central terminal that supports the conductive plate; and a spring member that is bent between the conductive plate and the central terminal and supports the conductive plate on the central terminal so as to be swingable. A second switch portion comprising a second fixed-side contact and a second movable-side contact that is brought into and out of contact with the second fixed-side contact, and the sliding direction of the conductor plate by the spring property of the spring member The first movable side contact is displaced from the first fixed side contact by displacing the first movable side contact with the first fixed side contact, and the second fixed side contact is displaced by displacing the second movable side contact. A slide member that is brought into contact with and separated from, and a protruding position and a locked position of the slide member. Together movably retains, and a first switch portion and a casing incorporating the second switch portion, the second fixed contact, said case Inside bottom side of A pair of fixed terminals arranged opposite to each other, and the second movable contact is Arranged on the lower surface side of the slide member A torsion coil spring having an arm portion that is in contact with the pair of fixed terminals. A guide portion made of a protrusion and a pair of hook-shaped holding portions sandwiching the guide portion on the lower surface side of the slide member, and winding the second movable contact made of a torsion coil spring And a pair of arm portions are elastically contacted with the holding portion, and in an initial state, the second movable contact point and the second pair of fixed terminals are included. The fixed-side contact is spaced apart from the fixed-side contact, and the contact is in an OFF state. When the slide member is pushed, the second movable-side contact contacts the second fixed-side contact, and the contact is Even when the slide member is pushed in, the pair of arm portions of the second movable side contact bends and comes into contact with the second fixed side contact while sliding, and the contact is maintained in the on state. Be done The configuration.
[0009]
As a second means ,in front The second movable contact point is arranged on the lower surface side of the slide member facing the forming surface of the locking means formed on the upper surface side of the slide member in the case.
[0011]
The second 3 As a means, a partition wall is formed between the first switch part and the second switch part on the inner bottom part of the case.
[0012]
The second 4 As a means, the first switch unit is a power switch for switching the primary AC power source, and the second switch unit is a detection switch for switching the DC power source on the secondary side.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the switch device of the present invention are shown in FIGS. FIG. 1 is a longitudinal sectional view when the switch device is turned off, FIG. 2 is a plan view in a state where a part of the cover and the slide member are broken, and FIG. 3 is a longitudinal sectional view when the detection switch portion of the switch device is turned on. 4 is a plan view showing a state in which the cover and a part of the slide member are broken, FIG. 5 is a longitudinal sectional view when the detection switch unit and the power switch unit are turned on, and FIG. FIG. 7 is a partial perspective view showing an engagement state between the movable contact of the detection switch and the slide member.
[0014]
In the figure, the case 1 is formed in a box shape whose upper surface is opened with an insulating material such as synthetic resin. In the opening of the case 1, there are formed a first storage portion 1b that is separated by a partition wall 1a and positioned rearward, and a second storage portion 1c that is positioned forward. On the inner bottom surface of the first storage portion 1b, a peripheral terminal 2 made of a conductive metal plate having a first fixed side contact 2a on the upper surface, and a conductive metal plate adjacent to the peripheral terminal 2 are also formed. A central terminal 3 is provided. In addition, fixed terminals 4 and 4 made of a conductive metal plate are arranged opposite to each other on the inner bottom surface of the second storage portion 1c, and the distal ends of the fixed terminals 4 and 4 are respectively second. Fixed side contacts 4a and 4a are formed.
[0015]
In the first and second storage portions 1b and 1c, a slide member 11 which will be described later is stored and is slidably disposed. Further, a frame 5 made of a metal plate having mounting legs 5a for mounting on a circuit board or the like is mounted on the front end side of the case 1, and a mounting protrusion for mounting a cover 13 to be described later on the rear end side. 1d is formed. In addition, the other end of a lock pin (not shown) that engages with a lock cam (not shown) of a slide member 11 to be described later and locks the slide member 11 in the pushing position at the distal end side of the case 1. A shaft hole 1e that pivotally supports the shaft is provided, and a return spring mechanism that engages one end of a return spring 6 that urges a slide member 11 (described later) to a return position at a further tip side of the shaft hole 1e. Stop part 1f is extended.
[0016]
The central terminal 3 is provided with a support arm locking projection 3a for locking a support arm 7 described later and a spring locking projection 3b for locking a reversing coil spring 10 described later, One end side of a support arm 7 and a reversing coil spring 10 which will be described later is locked to the locking protrusions 3a and 3b. Moreover, this latching | locking part is each formed in circular arc shape according to the wire diameter of the support arm 7 and the reversal coil spring 10 which are mentioned later.
[0017]
The support arm 7 is formed in a substantially U shape with a round wire having conductive spring properties, and a locking shaft that is locked to the support arm locking projection 3a, and is extended from the locking shaft and bent. A pair of arm pieces are provided so as to oppose each other, and the distal end side of the arm pieces engages with a locking hole 8c provided in a side wall 8a of the conductor plate 8 described later, and rotates integrally with the conductor plate 8. Engagement is possible.
[0018]
The conductor plate 8 is also made of a conductive metal plate, and is provided with side walls 8a facing each other on both sides, and a window hole portion 8b is provided at the center of the conductor plate 8. The side wall 8a is provided with a pair of locking holes 8c, and the support arm 7 is rotatably engaged with the locking holes 8c. The support arm 7 is loosely fitted in the window hole 8b, and the support arm locking projection 3a, a reversing coil spring 10 to be described later, and the like are loosely fitted.
[0019]
A first movable contact 9 is fixed to one end of the conductor plate 8. Further, the engagement hole 8c is formed on one end side of the conductor plate 8 to which the first movable contact 9 is fixed, and the support arm 7 is engaged with the other end side. The one end side of the reversing coil spring 10 to be described later is locked, and is movably attached to the central terminal 3. Further, the other end side is provided with an abutting portion 8d made of an arc surface that abuts an operating surface portion 11d of a slide member 11 to be described later and displaces the conductor plate 8 in a direction substantially perpendicular to the sliding movement direction. It has been.
[0020]
The reversing coil spring 10 is formed by winding a coil with a round wire having conductive spring properties, and has a pair of spring pieces. One of the spring pieces is a spring locking projection of the central terminal 3. The other spring piece is locked to the other end side of the conductor plate 8. The reversing coil spring 10 is bent between the central terminal 3 and the conductor plate 8, and the conductor plate 8 is fixed to the first fixing by the biasing force of the reversing coil spring 10. The side contact 2a is biased in the direction opposite to the arrangement position (the inner bottom surface side of the first storage portion 1b).
[0021]
The first movable contact 9 fixed to one end of the conductor plate 8 is disposed so as to face and separate from the first fixed contact 2a provided on the peripheral terminal 2. In this case, the central terminal 3, the reversing coil spring 10, the support arm 7, the conductor plate 8, and the peripheral terminal 2, and a primary AC power source that is a first switch unit. A power switch for switching is configured.
[0022]
The slide member 11 is formed of an insulating material such as a synthetic resin, and includes a base portion 11a disposed in the first storage portion 1b of the case 1 and an operation portion 11b extending at the tip of the base portion 11a. And. The base portion 11a is provided with a conductor plate housing portion 11c for housing the conductor plate 8, the support arm 7 and the like. The conductor plate housing portion 11c is in sliding contact with the contact portion 8d of the conductor plate 8 and An operating surface portion 11d made of an inclined surface is formed to displace the conductor plate 8 in a direction substantially perpendicular to the sliding movement direction. Further, on the upper surface side of the conductor plate housing portion 11c, a protrusion 11e that abuts the tip of the conductor plate 8 and regulates the position of the conductor plate 8 is provided.
[0023]
A lock cam (not shown) is formed on the distal end side of the base portion 11a so that the lock pin (not shown) is slidably contacted to lock the slide member 11 in the pushing position. The operating portion 11b is provided with a return spring storage portion 11f for storing the return spring 6 that biases the slide member 11 to the return position.
[0024]
In addition, a guide portion 11g made of a cylindrical protrusion is formed on the lower surface side of the slide member 11 opposite to the surface on which the lock cam is formed, and on both sides with the guide portion 11g interposed therebetween. A pair of hook-shaped holding portions 11h and 11h are formed to face each other. A winding portion 12a of the second movable contact 12 made of a torsion coil spring formed by winding in a coil shape with a round wire having conductive spring property is locked to the guide portion 11g. In addition, a pair of arm portions 12b and 12b extending from the winding portion 12a are attached in elastic contact with the holding portions 11h and 11h.
[0025]
The pair of arm portions 12b, 12b are disposed on the inner bottom surface of the second storage portion 1c, and the second fixed side contact 4a provided at the tip of the pair of fixed terminals 4, 4. 4a is arranged so as to be able to come into contact with and away from, and in this case, provided at the tip of the second movable contact 12 made of a torsion coil spring and the pair of fixed terminals 4 and 4 The second fixed side contacts 4a and 4a constitute a detection switch for switching the secondary DC power source as the second switch unit. Further, the power switch part and the detection switch part are formed in a state where they are separated from each other by the partition wall 1 a provided on the inner bottom part of the case 1.
[0026]
As described above, since the partition wall 1a is formed between the power switch unit and the detection switch unit, an arc generated in the power switch unit on the primary side affects the detection switch unit on the secondary side. Therefore, the reliability of the switch is improved.
[0027]
The cover 13 is formed in a square shape with an insulating material such as synthetic resin, and is attached to the attachment arm portion 13 a that is engaged with the attachment protrusion 1 d on the rear end side of the case 1 and the front end side of the case 1. The frame 5 is attached so as to cover the first and second storage portions 1b and 1c opened in the case 1.
[0028]
When assembling the contact mechanism of the first switch portion of the switch device described above, first, the conductor plate 8 is attached to the central terminal 3 disposed on the inner bottom surface of the case 1. In this case, since the support arm 7 is elastically biased and engaged with the conductor plate 8, the conductor plate 8 and the support arm 7 are an integral part, and the conductor plate 8 has a window hole. The conductor plate 8 can be easily attached to the central terminal 3 simply by loosely fitting the support arm locking protrusion 3a of the central terminal 3 to the portion 8b and incorporating the support arm 7 into the support arm locking protrusion 3a. Can be incorporated. At this time, the conductor plate 8 is positioned by being guided by insertion into the support arm locking projection 3a. From this state, with the reversing coil spring 10 loosely fitted in the window hole portion 8b of the conductor plate 8, the other end portion of the conductor plate 8 and the spring locking projection 3b of the central terminal 3 In the meantime, the reversing coil spring 10 is bent and locked to complete the assembly of the first switch part.
[0029]
At this time, the conductive plate 8 is urged in a direction opposite to the direction in which the peripheral terminal 2 of the first storage portion 1a is disposed by the urging force of the reversing coil spring 10. The upper end surface side of the side to which the first movable contact 9 is fixed comes into contact with the protruding portion 11e of the slide member 11, and the contact portion 8d on the other end side comes into contact with the operating surface portion 11d. The conductor plate 8 is in a state of being arranged substantially in parallel in the first storage portion 1b in a state where the first movable contact 9 and the first fixed contact 2a are kept at a constant interval. .
[0030]
Further, on the lower surface side of the slide member 11 facing the surface on which the lock cam is formed, a guide portion 11g made of a cylindrical protrusion, and a pair of hook-shaped holding portions on both sides across the guide portion 11g. 11h and 11h are opposed to each other, and the winding portion 12a of the second movable contact 12 made of a torsion coil spring is locked to the guide portion 11g and extends from the winding portion 12a. A pair of provided arm portions 12b and 12b are elastically attached to the holding portions 11h and 11h, and the slide member 11 is stored in the first and second storage portions 1b and 1c. At this time, the pair of the arm portions 12b, 12b are disposed on the inner bottom surface of the second storage portion 1c, and the second fixed side contact 4a provided at the tip of the pair of fixed terminals 4, 4. Between 4a and a certain amount By being arranged opposite while holding the, it has assumed that the second switch portion is constituted.
[0031]
In this case, as shown in FIG. 7, the pair of arm portions 12 b and 12 b of the second movable contact 12 is elastically attached to the holding portions 11 h and 11 h of the slide member 11. Therefore, since it can be integrated and assembled easily, and the pre-tension is applied to the pair of arm portions 12b and 12b in advance, it is easy to secure contact pressure at the time of ON.
[0032]
Next, the operation of the above-described switch device will be described with reference to FIGS.
As shown in FIG. 1 and FIG. 2, in the initial state, the conductor plate 8 has a contact with the first movable contact 9 separated from the first fixed contact 2a at a certain distance. It is off. In this state, the conductor plate 8 is urged in the direction (upward) opposite to the peripheral terminal 2 and the first fixed contact 2 a by the urging force of the reversing coil spring 10. Further, the second movable contact 12 and the second fixed contact 4a are also spaced apart from each other by a predetermined distance, and the contact is in an OFF state.
[0033]
From this state, when the operating portion 11b of the slide member 11 is pushed against the urging force of the return spring 6, it is locked to the guide portion 11g of the slide member 11 as shown in FIGS. The second movable contact 12 is moved rearward, the second movable contact 12 contacts the second fixed contact 4a, and the contact is turned on. At this time, the operating surface portion 11d of the slide member 11 presses the contact portion 8d of the conductor plate 8, but the first movable contact 9 and the first fixed contact 2a are still separated from each other. Is off.
[0034]
When the operation portion 11b of the slide member 11 is further pushed in from this state, the operating surface portion 11d of the slide member 11 further presses the contact portion 8d of the conductor plate 8, as shown in FIGS. The contact portion 8d side of the conductor plate 8 is pushed down to the inner bottom surface side of the first storage portion 1b against the urging force of the reversing coil spring 10. At this time, when the engaging portion of the reversing coil spring 10 and the conductor plate 8 overlaps with the engaging portion of the supporting arm 7 and the central terminal 3 (the engaging portion of the supporting arm engaging projection 3a). The direction of the urging force of the reversing coil spring 10 is reversed to the lower side, and the conductor plate 8 is self-propelled to the inner bottom surface side of the first storage portion 1b and the first movable side. The contact 9 comes into contact with the first fixed contact 2a, and the contact is turned on.
[0035]
At this time, the second movable contact 12 moves further rearward, but the arm portions 12b and 12b are bent by their own elastic force in a state where the arms 12b and 12b are in contact with the second fixed contact 4a. Thus, the contact is kept in contact with the second fixed side contact 4a while being slidably contacted by bending, and the contact is maintained in the ON state. In this way, the second movable contact 12 is formed of a torsion coil spring, so that it can be kept on for a long stroke, and the contact portion can be stabilized by sliding contact. . The slide member 11 is locked to the push-in position by cooperation of a lock pin (not shown) and a lock cam.
[0036]
When releasing the lock from this state, if the operation portion 11b of the slide member 11 is further pressed, the lock pin is detached from the lock cam, and the slide member 11 is returned to the initial position by the urging force of the return spring 6. It will return. At this time, the locking portion between the conductor plate 8 and the reversing coil spring 10 exceeds the locking portion between the support arm 7 and the central terminal 3 (the locking portion of the support plate locking protrusion 3a). The direction of the urging force of the reversing coil spring 10 is reversed upward, and the conductor plate 8 is self-propelled on the side opposite to the inner bottom surface of the first storage portion 1b, and the first movable contact point 9 is separated from the first fixed contact 2a and the contact is turned off, and the second movable contact 12 is also separated from the second fixed contact 4a and 4a and the contact is turned off. 1 and FIG. 2 return to the initial state.
[0037]
According to the above-described embodiment of the present invention, since the second movable contact 12 formed of a torsion coil spring is used as the contact portion of the detection switch for switching the DC power supply on the secondary side, the detection is performed. The structure of the switch portion can be simplified, the size can be reduced, the cost can be reduced, and the torsion coil spring can be easily handled and hardly deformed, so that the assembling workability is improved.
[0038]
Further, the contact portion of the power switch for switching the AC power supply on the primary side and the detection switch for switching the DC power supply on the secondary side is built in the same case 1 and is stored in the case 1 so as to be movable. Since the second movable side contact portion 12 and the second fixed side contact portion 4a of the detection switch are formed on the lower surface side of the slide member 11 opposite to the upper surface side where the lock cam is formed, By effectively utilizing the dead space on the lower surface side of the slide member 11, the outer shape of the switch device can be reduced and the cost can be reduced, and the strength of the mounting portion can be improved by incorporating the detection switch in the same case. The position accuracy can also be improved.
[0039]
In the above-described embodiment, the fixed terminal 4 and the second fixed contact 4a of the detection switch are formed of a conductive metal plate. Instead, the detection switch is formed of a conductive wire. In this case, the material cost is reduced, and the cost can be further reduced.
[0040]
In addition, the second movable contact 12 formed of a torsion coil spring of a detection switch is configured to be engaged with the guide portion 11g formed on the lower surface side of the slide member 11. However, instead of this, the case 1 The guide portion 11g may be formed on the inner bottom surface of the second storage portion 1c, and the second movable side contact 12 may be locked. In this case as well, the same effect as the above-described configuration can be obtained. Of course.
[0041]
【The invention's effect】
As described above, the configuration of the switch device of the present invention includes the first fixed side contact, the conductor plate having the first movable side contact that is contacted with and separated from the first fixed side contact, and the conductor plate. A first switch part comprising a central terminal to be supported and a spring member that is bent between the conductive plate and the central terminal and supports the conductive plate to the central terminal so as to be swingable; A second switch portion comprising a side contact and a second movable side contact that is brought into and out of contact with the second fixed side contact, and a direction in which the conductor plate is substantially perpendicular to the sliding movement direction due to the spring property of the spring member A slide member that displaces the first movable-side contact to and away from the first fixed-side contact, and displaces the second movable-side contact to contact and separate from the second fixed-side contact, and the slide member Is movably held between the protruding position and the locked position, and the first switch The second fixed side contact includes a pair of fixed terminals disposed opposite to each other in the case, and the second movable side contact includes a pair of fixed terminals. Since it consists of a torsion coil spring having an arm portion that comes into contact with the terminal, the configuration of the detection switch portion can be simplified, the size and cost can be reduced, and the handling of the torsion coil spring is easy and difficult to deform. Therefore, the assembly workability is also improved. In addition, it is possible to hold on with a long stroke, and the contact portion can be stabilized by sliding contact.
[0042]
Further, the pair of fixed terminals are disposed on the inner bottom surface side of the case, and the second movable contact is a slide member that faces a forming surface of the lock means formed on the upper surface side of the slide member in the case. Therefore, by effectively using the dead space on the lower surface side of the slide member, the outer shape of the switch device can be reduced, and it is possible to reduce the cost, and the detection switch can be used in the same case. By incorporating it, the strength of the mounting part and the on-position accuracy can be improved.
[0043]
Further, on the lower surface side of the slide member, a guide portion made of a protrusion and a pair of hook-shaped holding portions are formed with the guide portion interposed therebetween, and a winding portion of the second movable side contact made of a torsion coil spring is formed. Because it is locked to the guide part and the pair of arm parts are elastically contacted with the holding part, it can be integrated and assembled easily, and the pre-tension is applied to the pair of arm parts in advance. The contact pressure can be easily secured.
[0044]
In addition, since a partition is formed between the first switch portion and the second switch portion on the inner bottom portion of the case, an arc generated in the power switch portion on the primary side is detected by the detection switch on the secondary side. Therefore, the reliability of the switch is improved.
[0045]
In addition, since the first switch unit is a power switch for switching the AC power source on the primary side and the second switch unit is a detection switch for switching the DC power source on the secondary side, it is small in size and inexpensive. A power switch with a corresponding detection switch can be provided.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing when a switch device according to an embodiment of the present invention is off.
FIG. 2 is a plan view showing a state in which a part of the cover and the slide member are broken when the switch device of the present invention is also off.
FIG. 3 is a longitudinal sectional view showing when the detection switch portion of the switch device of the present invention is turned on.
FIG. 4 is a plan view showing a state in which the cover and the slide member are partially broken when the detection switch portion of the switch device of the present invention is turned on.
FIG. 5 is a longitudinal sectional view showing when the detection switch unit and the power switch unit of the switch device of the present invention are on.
FIG. 6 is a plan view showing a state in which a cover and a slide member are partially broken when the detection switch unit and the power switch unit of the switch device of the present invention are turned on.
FIG. 7 is a partial perspective view showing an engagement state between a movable contact and a slide member of the detection switch of the present invention.
[Explanation of symbols]
1 case
1a Bulkhead
1b First storage section
1c Second storage part
1d Mounting protrusion
1e Shaft hole
1f Return spring locking part
2 Peripheral terminals
2a First fixed contact
3 Central terminal
3a Support arm locking projection
3b Spring locking projection
4 Fixed terminal
4a Second fixed contact
5 frames
5a Mounting leg
6 Return spring
7 Support arm
8 Conductor plate
8a side wall
8b Window hole
8c Locking hole
8d contact part
9 First movable contact
10 Reversing coil spring (spring member)
11 Slide member
11a base
11b Operation unit
11c Conductor plate storage
11d Working surface
11e Protrusion
11f Return spring storage
11g Guide part
11h Holding part
12 Second movable contact (torsion coil spring)
12a winding part
12b Arm part
13 Cover
13a Mounting arm

Claims

A conductive plate having a first fixed-side contact, a first movable-side contact that is brought into and out of contact with the first fixed-side contact, a central terminal that supports the conductive plate, and the conductive plate and the central terminal. A first switch portion, which is bent between and is provided with a spring member which swingably supports the conductor plate on the central terminal, a second fixed side contact, and the second fixed side contact A second switch part composed of a second movable contact that is brought into contact with and away from the first movable part, and the first movable plate by displacing the conductor plate in a direction substantially perpendicular to the sliding movement direction by the spring property of the spring member. A slide member that causes the side contact to contact and separate from the first fixed side contact and displaces the second movable side contact to contact and separate from the second fixed side contact, and locks the slide member to the protruding position. Holding the first switch part movably in position, and And a case with a built-in serial the second switch portion, the second fixed side contact comprises a pair of fixed terminals so as to face disposed on the inner bottom surface side of the case, the second movable-side contacts, Ri Do from the torsion coil spring having an arm portion which is in contact with the pair of fixed terminals arranged on the lower surface of the slide member, the lower surface side of the slide member includes a guide portion comprises a projection, A pair of hook-shaped holding portions are formed across the guide portion, and the winding portion of the second movable contact made of a torsion coil spring is inserted and locked into the guide portion, and the pair of arms In the initial state, the second movable side contact and the second fixed side contact made up of a pair of fixed terminals are spaced apart at a constant interval, and the contact is turned off. The slide member is pushed in. And the second movable side contact comes into contact with the second fixed side contact to turn on the contact, and even if the slide member is pushed in, the pair of arm portions of the second movable side contact is A switch device characterized in that the contact is maintained in an ON state by bending and contacting with the second fixed side contact .

Before Stories second movable side contact, billing, characterized in that said slide forming surface of the locking means formed on the upper surface of the member in said case is disposed on the lower surface of the slide member facing Item 2. The switch device according to item 1.

The switch device according to claim 1 , wherein a partition wall is formed between the first switch portion and the second switch portion at an inner bottom portion of the case.

A first power supply switch of the switch unit is for AC power switching of the primary side, according to claim 1 to 3, wherein the second switch unit is detecting switch for DC power source switching of the secondary side The switch apparatus in any one of.