JP3958945B2

JP3958945B2 - Multiple switch device

Info

Publication number: JP3958945B2
Application number: JP2001253541A
Authority: JP
Inventors: 義美後藤; 達章川瀬
Original assignee: Alps Electric Co Ltd
Current assignee: Alps Alpine Co Ltd
Priority date: 2001-08-23
Filing date: 2001-08-23
Publication date: 2007-08-15
Anticipated expiration: 2021-08-23
Also published as: JP2003068163A; EP1286373A3; CN1402284A; CN1229833C; EP1286373A2

Description

【０００１】
【発明の属する技術分野】
本発明は多連スイッチ装置に係り、特にレンジフードの操作部に用いて好適な多連スイッチ装置に関するものである。
【０００２】
【従来の技術】
図１５は従来の多連スイッチ装置の一側面側から見た側面図である。同図に示すようにこの多連スイッチ装置は、一側面が開放された箱状のケーシング４１内に複数の操作体４２とリセット用の操作体４３とがケーシング４１の上面に一定間隔で設けられた開口４１ａから夫々上端部を復帰ばね５０の付勢力で突出させて上下動自在に保持されており、ケーシング４１内の複数の操作体４２とリセット用の操作体４３との各間には支持用突起４４を有する区画壁４５と金属片でなる固定接点４６とが夫々設けられている。
【０００３】
また、ケーシング４１内には、これら複数の操作体４２およびリセット用の操作体４３の夫々に形成された係合用突起（図示省略）と係合する１枚の係合用プレート４７が操作体４２の配列方向に向かって延びるように配設され、金属製の平板でなる共通端子４８が係合用プレート４７と略平行に取り付けられており、金属ばね板を曲折してなる可動接点４９が曲折部を区画壁４５と支持用突起４４との間に嵌入させて支持されいる。各可動接点４９は自身の弾発力で下端部を共通端子４８に圧接させて共通端子４８と電気的に接続され、曲折部よりも上側部分を各操作体４２の側部に形成された突部４２ａに係合させて上端部と所定間隔をもって対向する固定接点４６とで夫々スイッチ素子を構成している。
【０００４】
そして、いずれか１つの操作体４２の上端部を押下操作すると、上記係合用突起が係合用プレート４７と係合し、該操作体４２を押し込み状態に保持させると共に、該操作体４２の下動に伴って突部４２ａとの係合が解除されて可動接点４９が自身の弾発力で固定接点４６に接触し、押圧された操作体４２に対応するスイッチ素子がオンする。
【０００５】
また、リセット用の操作体４３の上端部を押下操作すると、係合用プレート４７の上記係合突起との係合が解除されて、押し込み状態に保持された操作体４２が復帰ばね５０の付勢力で上方へ復帰し、該操作体４２の上動に連動して突起４２ａにより可動接点４９が固定接点４６から引き離され該操作体４２に対応するスイッチ素子がオフ状態となる。
【０００６】
この多連スイッチ装置の組立は、ケーシング４１内に係合用プレート４７と共通端子４８と複数の固定接点４６とを取付収納して、複数の操作体４２とリセット用の操作体４３とを夫々上端部が復帰ばね５０で開口部４１ａから突出するようにケーシング４１に保持した後、複数の可動接点４９を夫々区画壁４５と支持用突起４４との間に嵌入して組立られる。
【０００７】
【発明が解決しようとする課題】
しかしながら、上述した従来の多連スイッチ装置にあっては、各可動接点４６の曲折部を区画壁４５と支持用突起４４との間に嵌入して、可動接点４９を夫々ケーシング４１内の複数の操作体４２と区画壁４５との狭スペースに組み込む作業は極めて煩雑で組立に手数を要するという問題があった。
【０００８】
また、この組み込み作業の際に、可動接点４９の上下端部が固定接点４６や共通端子４８にぶつかる等の要因で可動接点４９の曲折角度が変化し、可動接点４９のばね特性の変化によってスイッチ素子のスイッチング動作が不安定になるといった問題があった。
【０００９】
本発明は、このような従来技術の事情に鑑みてなされたもので、その目的は、組立作業性に優れ安定したスイッチング動作を得ることのできる多連スイッチ装置を提供することにある。
【００１０】
【課題を解決するための手段】
上記目的を達成するために、本発明の多連スイッチ装置は、ケーシングと該ケーシングに上下動自在に保持される複数の操作体と、この複数の操作体を上下動自在に保持する復帰ばねとを有する操作機構部と、
前記各操作体の上下動により夫々スイッチング動作を行う複数のスイッチ素子と該複数のスイッチ素子を外部機器に接続するための複数の端子と前記複数のスイッチ素子および前記複数の端子を支持した基台とを有する、前記操作機構部と別体で構成されたスイッチ機構部とを備えてなり、
前記基台が前記ケーシング内に固定されて前記操作機構部と前記スイッチ機構部とが一体化されている多連スイッチ装置であって、
前記複数のスイッチ素子は前記基台に固着された固定接点と該固定接点に接離する導電性を有する板ばね材で形成した可動接点とを夫々有し、前記操作体の下動に連動して前記可動接点を自身の弾性力で前記固定接点に弾接させると共に、前記操作体の上動に連動させて前記可動接点を自身の弾性力に抗して前記固定接点から離間せしめるようにし、
前記可動接点は一対のばね片を有し、前記操作体には前記一対のばね片の間に挿入される突起と、この突起から延出するように設けられた、前記一対のばね片の下面と夫々当接する腕部とを有し、
前記基台が前記複数の操作体の下側に配置され、
該基台上に前記複数のスイッチ素子が前記複数の操作体の配列方向に沿って一列に整列して配置されており、
前記可動接点が前記基台上に片持ち状態で固設されて、
前記可動接点の自由端側が前記複数の操作体の配列方向に向かって同一方向に延在されていることを最も主要な特徴としている。
【００１１】
また、上記構成において、前記可動接点は前記基台にかしめられて取り付けられている構成にしてある。
【００１２】
また、上記構成において、前記可動接点は平板状の支持部を有し、前記一対のばね片は、前記支持部の一縁から立ち上がり他縁側に折り返された構成にしてある。
【００１４】
【発明の実施の形態】
以下、本発明の多連スイッチ装置の一実施形態を図に基づいて説明する。図１〜図１１は本発明の一実施形態を説明するもので、図１は本発明の一実施形態に係わる多連スイッチ装置のカバーを取り外して一側面側から見た側面図、図２は該多連スイッチ装置の短手方向に沿う断面図である。
【００１５】
両図に示すようにこの多連スイッチ装置は、一側面が開放された長尺箱状のケーシング２と該ケーシング２に上下動自在に保持される複数の操作体３，４，５，６とを有する操作機構部１と、各操作体３，４，５，６の上下動により夫々スイッチング動作を行う複数のスイッチ素子２９，３０，３１，３２を備えたスイッチ機構部１４とから主に構成されており、ケーシング２は開放された一側面を閉蓋するカバー１３を有し、カバー１３と反対側の他側面には該ケーシング２の内外を連通させる筒部２ｃが一体的に形成されている。
【００１６】
図３は操作機構部の一側面側から見た側面図であり、同図に示すように操作機構部１は、ケーシング２内に複数の操作体３，４，５，６とリセット用の操作体７とがケーシング２の上面に一定間隔で設けられた開口２ａから夫々上端部を復帰ばね８の付勢力で突出させて上下動自在に保持されており、操作体３〜６には腕部９ａを有するリフト用突起９が各々設けられ、また、操作体６にはその上端部を押下操作した際にケーシング２に揺動自在に支持された駆動ピン１０と協動して復帰ばね８の弾発力に抗して該操作体６の押し込み状態を保持するハート型カム溝６ａが形成されている。
【００１７】
また、ケーシング２内には、操作体３，４，５およびリセット用の操作体７の夫々に形成された係合用突起（図示省略）と各々係合する複数の切欠を有する１枚の係合用プレート１１が操作体３，４，５の配列方向に沿って往復移動自在に配設され、ケーシング２の内壁と係合用プレート１１との間に該係合用プレート１１を復動方向（矢印Ｂ方向）に付勢する圧縮ばね１２が介挿されており、後述する基台１５を固定するための一対の凸部でなる固定部２ｂがケーシング２の短手方向に延びるように形成されている。
【００１８】
そして、操作体３，４，５のいずれか１つ例えば操作体３を押下操作すると、操作体３の上記係合用突起とこれに対応する係合用プレート１１の切欠とが係合し、この係合力から生じる分力により係合用プレート１１が圧縮ばね１２の付勢力に抗して往動方向（矢印Ａ方向）へ移動し、上記係合用突起が切欠を通過したときに、圧縮ばね１２の付勢力により係合用プレート１１が復動方向（矢印Ｂ方向）に復帰して操作体３の上記係合突起の上面を押さえ付けて操作体３をロックし、復帰ばね８の付勢力に抗して操作体３を押し込み状態に保持する。
【００１９】
このように、操作体３，４，５はその押下操作の途中で上記係合用突起と切欠との係合により係合用プレート１１を一度往動方向（矢印Ａ方向）へ移動させるため、操作体３，４，５のいずれか１つを押下操作すると、それ以前に押し込み状態に保持されていた別の操作体３，４，５はロックが解除されて復帰ばね８で上方へ復帰し、押下操作された操作体３，４，５のいずれか１つ自らは復動方向（矢印Ｂ方向）に復帰する係合用プレート１１により押し込み状態に維持される。
【００２０】
また、操作体３，４，５の全てを上方へ復帰させるときには、リセット用の操作体７を押下操作し、リセット用の操作体７の上記係合用突起がこれに対応する係合用プレート１１の切欠と係合することによって係合用プレート１１が圧縮ばね１２の付勢力に抗して往動方向（矢印Ａ方向）へ移動し、この間に復帰ばね８で操作体３，４，５が上方へ復帰される。リセット用の操作体７の上記係合用突起は、リセット用の操作体７が押し込み状態においても係合用プレート１１の切欠を通過することなく係合状態が維持されるため、リセット用の操作体７は押下操作を止めると復帰ばね８の付勢力で上方へ復帰する。
【００２１】
図４はスイッチ機構部の平面図、図５はその一側面側から見た側面図、図６は該スイッチ機構部に備わる基台の平面図、図７は図６の７−７に沿う断面図、図８は図６の８−８に沿う断面図、図９は図６の９−９に沿う断面図、図１０は該スイッチ機構部に備わる可動接点の平面図、図１１はその一側面側から見た側面図である。
【００２２】
図４及び図５に示すように、スイッチ機構部１４は、矩形平板状の基台１５に、複数の端子１６，１７，１８，１９，２０，２１と複数の可動接点２２，２３，２４，２５とが支持された構造となっている。
【００２３】
基台１５は、絶縁合成樹脂材で成型されてなるもので、図６に示すように、複数の角孔１５ａと複数の円形孔１５ｂ，１５ｃとが穿設されている。
【００２４】
端子１６は、導電性の金属平板から形成されてなるもので、先端部を突出させて基台１５にインサート成形によって支持されており、後端部が分岐して角孔１５ａ内に夫々露出し、この端子１６の各露出部分に切り起こしにより細幅の立ち上がり部１６ａと係止爪部１６ｂとからなる係止用爪１６ｃと二股状の位置決め用爪１６ｄとが一体的に形成されている（図７〜図９参照）。
【００２５】
端子１７は、導電性の金属平板から形成されてなるもので、先端部を突出させて基台１５にインサート成形によって支持されており、後端部が分岐して円形孔１５ｂ内に夫々露出し、この端子１７の各露出部分には鳩目金具のような固定接点１７ａ，１７ｂ，１７ｃが夫々固着されている。
【００２６】
端子１８〜２１は、端子１６，１７同様、導電性の金属平板から形成されてなるもので、先端部を突出させて基台１５にインサート成形によって支持されており、各後端部が夫々円形孔１５ｃ内に露出し、これら端子１８〜２１の各露出部分には鳩目金具が如き固定接点１８ａ，１９ａ，２０ａ，２１ａが各々固着されている。
【００２７】
可動接点２２〜２４は、導電性の薄板から形成されてなるもので、図１０及び図１１に示すように、平板状の支持部２６と、該支持部２６の一縁から立ち上がり他縁側に折り返された一対のばね片２７，２８とを有し、支持部２６には位置決め用孔２６ａと係止用孔２６ｂとが穿設されており、一対のばね片２７，２８の自由端側には鳩目金具が如き接点部２７ａ，２８ａが各々固着されいる。
【００２８】
また、可動接点２５は、図４に示すように、可動接点２２〜２４から片方のばね片２８を立ち上がり基点部寄りを残すように除去した点が可動接点２２〜２４と異なるのみで他は可動接点２２〜２４と同じ構成である。
【００２９】
これら可動接点２２〜２５は、位置決め用孔２６ａに基台１５の各角孔１５ａから突出する位置決め用爪１６ｄが挿通され、係止用孔２６ｂに挿入されて矢印Ｂ方向に倒し込まれた係止用爪１６ｃで支持部２６がかしめ付けられることで基台１５の上面に片持ち状態で支持されており、可動接点２２と固定接点１７ａ，１８ａとでスイッチ素子２９が構成され、可動接点２３と固定接点１７ｂ，１９ａとでスイッチ素子３０が構成されていると共に、可動接点２４と固定接点１７ｃ，２０ａとでスイッチ素子３１が構成され、可動接点２５と固定接点２１ａとでスイッチ素子３２が構成されている。
【００３０】
そして、このスイッチ機構部１４はその基台１５をケーシング２の固定部２ｂ間に嵌入させることによって操作機構部１と一体化され、スイッチ機構部１４が操作機構部１と一体化されたときには、図１及び図２に示すように、複数の端子１６〜２１の各先端部がケーシング２の筒部２ｃ内に配置され、また、基台１５上に複数のスイッチ素子２９〜３２が複数の操作体３〜６の配列方向に沿って一列に整列して配置されて、可動接点２２〜２５の自由端側が複数の操作体３〜６の配列方向に向かって同一方向に延在された状態となっている。
【００３１】
次に、このように構成された多連スイッチ装置の組立方法について説明すると、先ず、複数の端子１６〜２１がインサート成形により取り付けられ固定接点１７ａ〜１７ｃ及び固定接点１８ａ，１９ａ，２０ａ，２１ａが固着された基台１５の各角孔１５ａから突出する位置決め用爪１６ｄ及び係止用爪１６ｃに、支持部２６の位置決め用孔２６ａと係止用孔２６ｂと夫々挿通し係止用爪１６ｃを矢印Ｂ方向に倒し込んで、係止用爪１６ｃで支持部２６をかしめ付けることにより可動接点２２〜２５を基台１５に支持して、スイッチ機構部１４を組み立てる。
【００３２】
次に、ケーシング２内に係合用プレート１１と圧縮ばね１２とを収容し、次いで、複数の操作体３，４，５のリフト用突起９を可動接点２２，２３，２４の一対のばね片２７，２８の間から挿入し、可動接点２２，２３，２４の一対のばね片２７，２８の下面に複数の操作体３，４，５の腕部９ａを夫々当接させた状態で、ケーシング２の固定部２ｂに基台１５を嵌入してスイッチ機構部１４をケーシング２に固定し、複数の操作体３，４，５をケーシング２の開口２ａに夫々配置する。
【００３３】
次に、操作体６とリセット用の操作体７とをケーシング２の開口２ａに夫々配置し、操作体６の腕部９ａを可動接点２５のばね片２７の下面と当接させ、次いで、ケーシング２の上面に復帰ばね８を取り付けて該復帰ばね８の付勢力で複数の操作体３〜６とリセット用の操作体７とを上方へ復帰させる。そして、ケーシング２に駆動ピン１０を支持して操作体６のハートカム型溝６ａに係合させた後、カバー１３をケーシング２に嵌め合わせて取り付ける。
【００３４】
このようにして多連スイッチ装置の組立は完了するが、組立後においては、可動接点２２〜２６の自由端側が上方へ復帰している複数の操作体３〜６のリフト用突起９の腕部９ａと係合して上方に持ち上げられて、スイッチ素子２９の接点部２７ａ，２８ａが夫々固定接点１８ａ，１７ａと間隙をもって対向し、スイッチ素子３０の接点部２７ａ，２８ａが夫々固定接点１９ａ，１７ｂと間隙をもって対向していると共に、スイッチ素子３１の接点部２７ａ，２８ａが夫々固定接点２０ａ，１７ｃと間隙をもって対向し、スイッチ素子３２の接点部２７ａが固定接点２１ａと間隙をもって対向した状態となっている。
【００３５】
本実施形態に係る多連スイッチ装置は上記したように構成・組み立てられており、次に、その動作について説明する。
【００３６】
この多連スイッチ装置は、台所の室壁に設置されるレンジフード等の外部機器に組み込まれて当該外部機器と複数の端子１６〜２１とを筒部２ｃに嵌挿されたコネクタで電気的に接続して端子１６に給電がなされた状態で使用され、上記レンジフードにおいて使用される場合には、屋外からの給気を行う空気通路のシャッタ装置と端子１７とを接続し、該レンジフードに装備された室内からの排気を行う換気扇装置と端子１８〜２０とを接続し、該レンジフードに備え付けられた照明器具と端子２１とを接続して、スイッチ素子２９〜３１が換気扇装置の運転制御とシャッタ装置の開閉制御とに割り当てられ、スイッチ素子３２が照明器具の点灯スイッチとして用いられる。
【００３７】
そして、例えば操作体３を押下操作すると、上述した係合用プレート１１の往復移動によって該操作体３が押し込み状態に保持され、該操作体３の下動に連動してスイッチ素子２９の可動接点２２が自身の弾性力でその接点部２７ａ，２８ａを夫々固定接点１８ａ，１７ａに弾接させてスイッチ素子２９がオン状態となり、これにより端子１６，１８間と端子１６，１７間とが導通して上記コネクタを介して換気扇装置とシャッタ装置とに給電がなされ、換気扇装置が運転しこれに合わせてシャッタ装置が空気通路を開状態とする。
【００３８】
また、この状態で操作体４又は５を押下操作すると、係合用プレート１１の往復移動によって操作体３が復帰ばね８で上方へ復帰し、該操作体３の上動に連動してその腕部９ａでスイッチ素子２９の可動接点２２の自由端側が持ち上げられて固定接点１８ａ，１７ａから接点部２７ａ，２８ａが離間し、スイッチ素子３がオフ状態となり、これに代わって操作体４又は５が押し込み状態に保持され、該操作体４又は５の下動に連動してスイッチ素子３０又は３１の可動接点２３又は２４が自身の弾性力でその接点部２７ａ，２８ａを夫々固定接点１９ａ，１７ｂ又は固定接点２０ａ，１７ｃに弾接させてスイッチ素子３０又は３１がオン状態となり、これにより端子１６，１９間又は端子１６，２０間が導通して上記コネクタを介して換気扇装置に給電がなされ換気扇装置による排気量が切り換えられる。
【００３９】
この際、端子１６，１７間の導通はスイッチ素子３０の可動接点２３の接点部２８ａと固定接点１７ｂとの弾接、又はスイッチ素子３１の可動接点２４の接点部２８ａとの固定接点１７ｃとの弾接により持続されるので、シャッタ装置による空気通路の開状態が保たれ給気が継続されるため換気扇装置による円滑な排気が維持される。
【００４０】
そして、排気が不必要になったときには、リセット用の操作体７を押下操作することで、操作体３，４，５が上方へ復帰して夫々の腕部９ａでスイッチ素子２９〜３１の全てが可動接点２２，２３，２４の自由端側を持ち上げられてオフ状態となり、換気扇装置の運転が停止しシャッタ装置による空気通路の状態が開状態から閉状態に戻る。
【００４１】
また、操作体３〜５が押し込み状態にあるか上方へ復帰した状態にあるのかの如何に係わらず、操作体６を押下操作すると、ハート型カム溝６ａと協動して駆動ピン１０が該操作体６を押し込み状態に保持し、該操作体６の下動に連動してスイッチ素子３２の可動接点２５が自身の弾性力でその接点部２７ａを固定接点２１ａに弾接させてスイッチ素子３２がオン状態となり、これにより端子１６，２１間が導通して上記コネクタを介して照明器具を点灯し、その点灯が不要となれば、押し込み状態にある操作体６を再度押下操作することで該操作体６が復帰ばね８の付勢力で上方へ復帰し、これに連動してその腕部９ａでスイッチ素子３２の可動接点２５が持ち上げられて固定接点２１ａから接点部２７ａが離間し、スイッチ素子３２がオフ状態に戻り照明器具が消灯する。
【００４２】
しかして、この多連スイッチ装置にあっては、基台１５に複数のスイッチ素子２９〜３２と複数の端子１６〜２１とを支持してスイッチ機構部１４を形成し、基台１５をケーシング２に固定してスイッチ機構部１４が操作機構部１に一体化されているので、スイッチ素子２９〜３２をケーシング２外の広い作業スペースで組立上げてからケーシング２内に収容することができるため、スイッチ素子２９〜３２の組立作業の煩雑さを解消し、スイッチング動作の安定した多連スイッチ装置を得ることができる。
【００４３】
また、スイッチ素子２９〜３２の可動接点２２〜２５は基台１５にかしめられて取り付けられるので、その取付作業の簡素化を図ることができ、特にこの実施形態のように、一対のばね片２７，２８を１つの支持部２６で連結し、該支持部２６をかしめ付けて一対のばね片２７，２８を基台１５に同時に取り付けるようにすると、組立工数の低減をより一層促進することができる。
【００４４】
また、スイッチ素子２９〜３２の可動接点２２〜２５を導電性を有する板ばね材で形成して、夫々操作体３〜６の下動に連動して自身の弾性力で固定接点１７ａ，１７ｂ，１７ｃ及び固定接点１８ａ，１９ａ，２０ａ，２１ａに弾接させると共に、操作体２９〜３２の上動に連動して夫々固定接点１７ａ，１７ｂ，１７ｃ及び固定接点１８ａ，１９ａ，２０ａ，２１ａから離間せしめるようにしたので、簡単な構成でスイッチ素子２９〜３２を操作体３〜６の上下動に合わせてスイッチング動作させることができる。
【００４５】
またさらに、スイッチ素子２９〜３０を操作体３〜６の下側にその配列方向に沿って一列に整列配置し、スイッチ素子２９〜３２の可動接点２２〜２５を片持ち状態で基台１５に支持して夫々その自由端側を操作体３〜６の配列方向に向かって同一方向に延在させたので、各可動接点２２〜２５の自由端側を若干量持ち上げることでスイッチ素子２９〜３２のスイッチング動作を行うことができることから、操作体３〜６の上下動のストロークを従来技術と比較して短くすることができるため、多連スイッチ装置の上下方向における寸法を小さくしてその偏平化・コンパクト化を図ることができる。
【００４６】
尚、この実施形態では、係止用爪１６ｃを倒し込んで可動接点２２〜２５を基台１５に支持した場合について説明したが、図１２に示すように、可動接点２２〜２４の係止用孔２６ｂの形状を若干変更し、これと同様に可動接点２５の係止用孔２６ｂの形状も併せて変更して、図１３及び図１４に示すように、係止用孔２６ｂに挿入された係止用爪１６ｃの係止爪部１６ｂを捩ることで可動接点２２〜２５を基台１５に支持することも可能であり、この場合には、係止爪部１６ｂの下端のテーパ部分で支持部２６をかしめ付けることができるため、可動接点２２〜２５を簡単かつ一層強固に支持することができる。
【００４７】
【発明の効果】
本発明は、以上説明したような形態で実施され、以下に記載されるような効果を奏する。
【００４８】
本発明の多連スイッチ装置は、操作機構部とスイッチ機構部とで構成され、前記スイッチ機構部はこれが固定される前記操作機構部のケーシングの外側で基台に複数のスイッチ素子と複数に端子とを支持して組立を完了することができるため、組立作業性を向上させ複数のスイッチ素子の安定したスイッチング動作を得ることができる。
【００４９】
また、前記複数のスイッチ素子は前記基台に固着された固定接点と該固定接点に接離する可動接点とを夫々有し、該可動接点は前記基台にかしめられて取り付けられるので、その取付作業の簡素化を図ることができる。
【００５０】
また、前記可動接点を導電性を有する板ばね材で形成し、前記操作体の下動に連動して前記可動接点を自身の弾性力で前記固定接点に弾接させると共に、前記操作体の上動に連動させて前記可動接点を自身の弾性力に抗して前記固定接点から離間せしめるようにしたので、簡単な構成で複数のスイッチ素子を複数の操作体の上下動に合わせて夫々スイッチング動作させることができる。
【００５１】
またさらに、前記基台が前記複数の操作体の下側に配置され、該基台上に前記複数のスイッチ素子が前記複数の操作体の配列方向に沿って一列に整列して配置されており、前記可動接点が前記基台上に片持ち状態で固設されて、前記可動接点の自由端側が前記複数の操作体の配列方向に向かって同一方向に延在されているので、前記複数の操作体の上下動のストロークを短くすることができ、多連スイッチ装置の上下方向における寸法を小さくしてその偏平化・コンパクト化を図ることができる。
【図面の簡単な説明】
【図１】本発明の一実施形態に係わる多連スイッチ装置のカバーを取り外して一側面側から見た側面図である。
【図２】該多連スイッチ装置の短手方向に沿う断面図である。
【図３】該多連スイッチ装置を構成する操作機構部の一側面側から見た側面図である。
【図４】該多連スイッチ装置構成するスイッチ機構部の平面図である。
【図５】その一側面側から見た側面図である。
【図６】該スイッチ機構部に備わる基台の平面図である。
【図７】図６の７−７に沿う断面図である。
【図８】図６の８−８に沿う断面図である。
【図９】図６の９−９に沿う断面図である。
【図１０】該スイッチ機構部に備わる可動接点の平面図である。
【図１１】その一側面側から見た側面図である。
【図１２】該可動接点の変形例を示す平面図である。
【図１３】該スイッチ機構部の変形例を示す平面図である。
【図１４】その一側面側から見た側面図である。
【図１５】従来の多連スイッチ装置の一側面側から見た側面図である。
【符号の説明】
１操作機構部
２ケーシング
２ａ開口
２ｂ固定部
２ｃ筒部
３，４，５，６操作体
６ａハート型カム溝
７リセット用の操作体
８復帰ばね
９リフト用突起
９ａ腕部
１０駆動ピン
１１係合用プレート
１２圧縮ばね
１３カバー
１４スイッチ機構部
１５基台
１５ａ角孔
１５ｂ，１５ｃ円形孔
１６端子
１６ａ立ち上がり部
１６ｂ係止爪部
１６ｃ係止用爪
１６ｄ位置決め用爪
１７端子
１７ａ，１７ｂ，１７ｃ固定接点
１８端子
１８ａ固定接点
１９端子
１９ａ固定接点
２０端子
２０ａ固定接点
２１端子
２１ａ固定接点
２２，２３，２４，２５可動接点
２６支持部
２６ａ位置決め用孔
２６ｂ係止用孔
２７ばね片
２７ａ接点部
２８ばね片
２８ａ接点部
２９，３０，３１，３２スイッチ素子[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a multiple switch device, and more particularly to a multiple switch device suitable for use in an operation portion of a range hood.
[0002]
[Prior art]
FIG. 15 is a side view seen from one side of a conventional multiple switch device. As shown in the figure, in this multiple switch device, a plurality of operation bodies 42 and a reset operation body 43 are provided on the upper surface of the casing 41 at regular intervals in a box-shaped casing 41 whose one side is open. The upper ends of the openings 41a are protruded by the urging force of the return spring 50 so as to be movable up and down, and are supported between the plurality of operating bodies 42 in the casing 41 and the operating body 43 for resetting. A partition wall 45 having a projection 44 and a fixed contact 46 made of a metal piece are provided.
[0003]
Further, in the casing 41, a single engagement plate 47 that engages with an engagement protrusion (not shown) formed on each of the plurality of operation bodies 42 and the reset operation body 43. A common terminal 48 made of a metal flat plate is disposed so as to extend in the arrangement direction, and is mounted substantially parallel to the engagement plate 47, and a movable contact 49 formed by bending the metal spring plate has a bent portion. The partition wall 45 and the supporting projection 44 are inserted and supported. Each movable contact 49 is electrically connected to the common terminal 48 with its lower end pressed against the common terminal 48 by its own elastic force, and a protrusion formed on the side of each operating body 42 above the bent portion. Each of the switch elements is constituted by a fixed contact 46 which is engaged with the portion 42a and faces the upper end portion with a predetermined interval.
[0004]
When the upper end portion of any one of the operating bodies 42 is pressed, the engaging projection engages with the engaging plate 47 to hold the operating body 42 in a pushed state, and to move the operating body 42 downward. As a result, the engagement with the protrusion 42a is released, the movable contact 49 comes into contact with the fixed contact 46 by its own elastic force, and the switch element corresponding to the pressed operating body 42 is turned on.
[0005]
Further, when the upper end portion of the reset operation body 43 is pressed, the engagement of the engagement plate 47 with the engagement protrusion is released, and the operation body 42 held in the pushed state is biased by the return spring 50. In response to the upward movement of the operating body 42, the movable contact 49 is pulled away from the fixed contact 46 by the projection 42a, and the switch element corresponding to the operating body 42 is turned off.
[0006]
In this assembly of the multiple switch device, the engagement plate 47, the common terminal 48, and the plurality of fixed contacts 46 are mounted and housed in the casing 41, and the plurality of operation bodies 42 and the reset operation body 43 are respectively connected to the upper ends. After the part is held by the casing 41 so as to protrude from the opening 41 a by the return spring 50, the plurality of movable contacts 49 are respectively fitted between the partition wall 45 and the support protrusion 44 and assembled.
[0007]
[Problems to be solved by the invention]
However, in the conventional multiple switch device described above, the bent portion of each movable contact 46 is fitted between the partition wall 45 and the supporting projection 44, and the movable contacts 49 are respectively connected to the plurality of casings 41. The operation of assembling into the narrow space between the operating body 42 and the partition wall 45 is extremely complicated and requires a lot of time for assembly.
[0008]
Further, during this assembling work, the bending angle of the movable contact 49 changes due to factors such as the upper and lower ends of the movable contact 49 colliding with the fixed contact 46 and the common terminal 48. There has been a problem that the switching operation of the element becomes unstable.
[0009]
The present invention has been made in view of such circumstances of the prior art, and an object of the present invention is to provide a multiple switch device that is excellent in assembling workability and can obtain a stable switching operation.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, a multiple switch device of the present invention includes a casing, a plurality of operating bodies that are held by the casing so as to be movable up and down, and a return spring that holds the plurality of operating bodies so as to be movable up and down. An operation mechanism having
A plurality of switch elements that perform a switching operation by vertically moving each operating body, a plurality of terminals for connecting the plurality of switch elements to an external device, a plurality of switch elements, and a base that supports the plurality of terminals And a switch mechanism portion configured separately from the operation mechanism portion .
A array type switch device before Kimotodai said operating mechanism is fixed and said switching mechanism is integrated in the casing,
Each of the plurality of switch elements has a fixed contact fixed to the base and a movable contact formed of a conductive leaf spring material that contacts and separates from the fixed contact, and interlocks with the downward movement of the operation body. The movable contact is elastically contacted with the fixed contact by its own elastic force, and the movable contact is separated from the fixed contact against the elastic force of the operation body in conjunction with the upward movement of the operation body,
The movable contact has a pair of spring pieces, and the operating body has a protrusion inserted between the pair of spring pieces and a lower surface of the pair of spring pieces provided to extend from the protrusion. And arm portions that respectively contact,
The base is disposed below the plurality of operating bodies;
The plurality of switch elements are arranged on the base in a line along the arrangement direction of the plurality of operating bodies,
The movable contact is cantilevered on the base;
The main feature is that the free end side of the movable contact extends in the same direction toward the arrangement direction of the plurality of operating bodies .
[0011]
Moreover, the said structure WHEREIN: The said movable contact is made into the structure attached by being crimped to the said base.
[0012]
Moreover, the said structure WHEREIN: The said movable contact has a flat support part, The said pair of spring piece is set as the structure which stood | started up from the one edge of the said support part, and was bent by the other edge side .
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a multiple switch device of the present invention will be described with reference to the drawings. 1 to 11 illustrate an embodiment of the present invention. FIG. 1 is a side view of a multiple switch device according to an embodiment of the present invention with a cover removed and viewed from one side. FIG. It is sectional drawing which follows the transversal direction of this multiple switch apparatus.
[0015]
As shown in both figures, this multiple switch device includes a long box-like casing 2 with one side open, and a plurality of operating bodies 3, 4, 5, 6 held in the casing 2 so as to be movable up and down. And an operation mechanism unit 1 having a plurality of switch elements 29, 30, 31, and 32 that perform switching operations by vertically moving the operation bodies 3, 4, 5, and 6. The casing 2 has a cover 13 that closes one open side surface, and a cylindrical portion 2c that communicates the inside and outside of the casing 2 is integrally formed on the other side surface opposite to the cover 13. Yes.
[0016]
FIG. 3 is a side view as seen from one side of the operation mechanism unit. As shown in FIG. 3, the operation mechanism unit 1 includes a plurality of operation bodies 3, 4, 5, 6 and a reset operation in the casing 2. The body 7 and the upper surface of the casing 2 are held by the urging force of the return spring 8 from the openings 2a provided at regular intervals so that the body 7 is held up and down. Lifting protrusions 9 having 9a are provided, and the operation body 6 cooperates with a drive pin 10 swingably supported by the casing 2 when the upper end of the operation body 6 is pushed down. A heart-shaped cam groove 6a is formed to hold the operating body 6 in a pushed state against a resilient force.
[0017]
Further, in the casing 2, there is a single engagement member having a plurality of notches that respectively engage with engagement protrusions (not shown) formed on the operation bodies 3, 4, 5 and the reset operation body 7. A plate 11 is disposed so as to be reciprocally movable along the arrangement direction of the operating bodies 3, 4, and 5, and the engaging plate 11 is moved backward (in the direction of arrow B) between the inner wall of the casing 2 and the engaging plate 11. ), And a fixing portion 2b formed of a pair of convex portions for fixing a base 15 to be described later is formed so as to extend in the short direction of the casing 2.
[0018]
When one of the operating bodies 3, 4, 5, for example, the operating body 3 is pressed, the engaging protrusion of the operating body 3 engages with the notch of the engaging plate 11 corresponding to the engaging protrusion 11. When the engagement plate 11 moves in the forward movement direction (arrow A direction) against the urging force of the compression spring 12 due to the component force generated by the resultant force, the compression spring 12 is attached when the engagement protrusion passes through the notch. Due to the force, the engagement plate 11 returns in the backward movement direction (arrow B direction), presses the upper surface of the engagement protrusion of the operation body 3 to lock the operation body 3, and resists the urging force of the return spring 8. The operating body 3 is held in the pushed-in state.
[0019]
In this way, the operating bodies 3, 4 and 5 move the engaging plate 11 once in the forward movement direction (arrow A direction) by the engagement between the engaging protrusion and the notch during the pressing operation. When any one of 3, 4, and 5 is pressed down, the other operating bodies 3, 4, and 5 previously held in the pressed state are unlocked and returned upward by the return spring 8 and pressed. Any one of the operated operating bodies 3, 4, 5 is maintained in the pushed-in state by the engagement plate 11 that returns in the backward movement direction (arrow B direction).
[0020]
Further, when all of the operating bodies 3, 4, 5 are returned upward, the reset operating body 7 is pushed down, and the engaging protrusions of the reset operating body 7 are moved to the corresponding engaging plate 11. By engaging with the notch, the engagement plate 11 moves in the forward movement direction (arrow A direction) against the urging force of the compression spring 12, and the operating bodies 3, 4, 5 are moved upward by the return spring 8 during this time. Will be restored. Since the engaging protrusion of the reset operation body 7 is maintained without passing through the notch of the engagement plate 11 even when the reset operation body 7 is pushed, the reset operation body 7 is maintained. When the pressing operation is stopped, it returns upward by the urging force of the return spring 8.
[0021]
4 is a plan view of the switch mechanism, FIG. 5 is a side view as seen from one side, FIG. 6 is a plan view of a base provided in the switch mechanism, and FIG. 7 is a cross section taken along 7-7 in FIG. 8 is a sectional view taken along the line 8-8 in FIG. 6, FIG. 9 is a sectional view taken along the line 9-9 in FIG. 6, FIG. 10 is a plan view of the movable contact provided in the switch mechanism portion, and FIG. It is the side view seen from the side.
[0022]
As shown in FIGS. 4 and 5, the switch mechanism unit 14 includes a plurality of terminals 16, 17, 18, 19, 20, 21 and a plurality of movable contacts 22, 23, 24, 25 is supported.
[0023]
The base 15 is formed of an insulating synthetic resin material, and has a plurality of square holes 15a and a plurality of circular holes 15b, 15c as shown in FIG.
[0024]
The terminal 16 is formed from a conductive metal flat plate, and is supported by insert molding on the base 15 with the tip portion protruding, and the rear end portion is branched and exposed in the square holes 15a. A locking claw 16c composed of a narrow rising portion 16a and a locking claw portion 16b and a bifurcated positioning claw 16d are integrally formed by cutting and raising each exposed portion of the terminal 16 ( FIG. 7 to FIG. 9).
[0025]
The terminal 17 is formed of a conductive metal flat plate, and is supported by insert molding on the base 15 with the tip portion protruding, and the rear end portion branches to be exposed in the circular hole 15b. Fixed contacts 17a, 17b, 17c such as eyelet fittings are fixed to the exposed portions of the terminals 17, respectively.
[0026]
The terminals 18 to 21 are formed of a conductive metal flat plate, like the terminals 16 and 17, and are supported by insert molding on the base 15 with the front end protruding, and each rear end is circular. Fixed contacts 18a, 19a, 20a, and 21a such as eyelet fittings are fixed to the exposed portions of the terminals 18 to 21, respectively.
[0027]
The movable contacts 22 to 24 are formed of conductive thin plates. As shown in FIGS. 10 and 11, the movable contacts 22 to 24 rise from one edge of the support portion 26 and are folded back to the other edge side. A pair of spring pieces 27 and 28 are provided. A positioning hole 26a and a locking hole 26b are formed in the support portion 26, and the free ends of the pair of spring pieces 27 and 28 are provided on the free end side. Contact portions 27a and 28a such as eyelet fittings are fixed to each other.
[0028]
Further, as shown in FIG. 4, the movable contact 25 is different from the movable contacts 22 to 24 except that one of the spring pieces 28 is removed from the movable contacts 22 to 24 so as to leave a portion close to the base point. It is the same structure as the contacts 22-24.
[0029]
The movable contacts 22 to 25 are engaged when the positioning claws 16d protruding from the respective square holes 15a of the base 15 are inserted into the positioning holes 26a, inserted into the locking holes 26b, and tilted in the direction of the arrow B. The support portion 26 is caulked by the pawl 16c so that it is supported on the upper surface of the base 15 in a cantilevered state, and the switch element 29 is constituted by the movable contact 22 and the fixed contacts 17a and 18a. And the fixed contacts 17b and 19a constitute a switch element 30, the movable contact 24 and the fixed contacts 17c and 20a constitute a switch element 31, and the movable contact 25 and the fixed contact 21a constitute a switch element 32. Has been.
[0030]
And this switch mechanism part 14 is integrated with the operation mechanism part 1 by inserting the base 15 between the fixed parts 2b of the casing 2, and when the switch mechanism part 14 is integrated with the operation mechanism part 1, As shown in FIGS. 1 and 2, the tip portions of the plurality of terminals 16 to 21 are disposed in the cylindrical portion 2 c of the casing 2, and a plurality of switch elements 29 to 32 are operated on the base 15. A state in which the free ends of the movable contacts 22 to 25 are arranged in a line along the arrangement direction of the bodies 3 to 6 and extend in the same direction toward the arrangement direction of the plurality of operating bodies 3 to 6; It has become.
[0031]
Next, the assembly method of the multiple switch device configured as described above will be described. First, a plurality of terminals 16 to 21 are attached by insert molding, and fixed contacts 17a to 17c and fixed contacts 18a, 19a, 20a and 21a are provided. The positioning claw 16d and the locking claw 16c projecting from the square holes 15a of the fixed base 15 are inserted into the positioning hole 26a and the locking hole 26b of the support portion 26, respectively, and the locking claw 16c is inserted. The switch mechanism 14 is assembled by supporting the movable contacts 22 to 25 on the base 15 by tilting in the direction of arrow B and caulking the support 26 with the locking claws 16c.
[0032]
Next, the engaging plate 11 and the compression spring 12 are accommodated in the casing 2, and then the lift projections 9 of the plurality of operating bodies 3, 4, 5 are connected to the pair of spring pieces 27 of the movable contacts 22, 23, 24. , 28, and the casing 2 in a state where the arm portions 9a of the plurality of operating bodies 3, 4, 5 are in contact with the lower surfaces of the pair of spring pieces 27, 28 of the movable contacts 22, 23, 24, respectively. The base 15 is fitted into the fixed portion 2b to fix the switch mechanism portion 14 to the casing 2, and a plurality of operating bodies 3, 4, and 5 are arranged in the opening 2a of the casing 2, respectively.
[0033]
Next, the operating body 6 and the reset operating body 7 are respectively disposed in the opening 2a of the casing 2, the arm portion 9a of the operating body 6 is brought into contact with the lower surface of the spring piece 27 of the movable contact 25, and then the casing. The return spring 8 is attached to the upper surface of 2, and the plurality of operating bodies 3 to 6 and the reset operating body 7 are returned upward by the biasing force of the return spring 8. Then, after the drive pin 10 is supported on the casing 2 and engaged with the heart cam groove 6 a of the operating body 6, the cover 13 is fitted and attached to the casing 2.
[0034]
In this way, the assembly of the multiple switch device is completed, but after the assembly, the arm portions of the lift projections 9 of the plurality of operating bodies 3 to 6 in which the free ends of the movable contacts 22 to 26 are returned upward. 9a is engaged and lifted upward, the contact portions 27a and 28a of the switch element 29 are opposed to the fixed contacts 18a and 17a, respectively, and the contact portions 27a and 28a of the switch element 30 are respectively fixed contacts 19a and 17b. The contact portions 27a and 28a of the switch element 31 face the fixed contacts 20a and 17c with a gap, respectively, and the contact portion 27a of the switch element 32 faces the fixed contact 21a with a gap. ing.
[0035]
The multiple switch device according to the present embodiment is configured and assembled as described above, and the operation thereof will be described next.
[0036]
This multiple switch device is incorporated in an external device such as a range hood installed on the wall of a kitchen, and is electrically connected with a connector in which the external device and a plurality of terminals 16 to 21 are fitted and inserted into a cylindrical portion 2c. When the terminal 16 is connected and used in a state where power is supplied and used in the range hood, the shutter device of the air passage for supplying air from the outside and the terminal 17 are connected to the range hood. The ventilating fan device for exhausting air from the equipped room and the terminals 18 to 20 are connected, the lighting fixtures provided in the range hood and the terminal 21 are connected, and the switch elements 29 to 31 control the operation of the ventilating fan device. And the switch device 32 is used as a lighting switch of a lighting fixture.
[0037]
For example, when the operating body 3 is pressed, the operating body 3 is held in the pushed state by the reciprocating movement of the engaging plate 11 described above, and the movable contact 22 of the switch element 29 is interlocked with the downward movement of the operating body 3. The contact elements 27a and 28a are elastically contacted with the fixed contacts 18a and 17a by their own elastic force, so that the switch element 29 is turned on, whereby the terminals 16 and 18 and the terminals 16 and 17 are electrically connected. Power is supplied to the ventilation fan device and the shutter device via the connector, the ventilation fan device is operated, and the shutter device opens the air passage according to this operation.
[0038]
When the operating body 4 or 5 is pressed in this state, the operating body 3 is returned upward by the return spring 8 by the reciprocating movement of the engagement plate 11, and the arm portion is interlocked with the upward movement of the operating body 3. 9a, the free end side of the movable contact 22 of the switch element 29 is lifted, the contact portions 27a, 28a are separated from the fixed contacts 18a, 17a, the switch element 3 is turned off, and the operating body 4 or 5 is pushed in instead. The movable contact 23 or 24 of the switch element 30 or 31 is interlocked with the downward movement of the operating body 4 or 5, and the contact portions 27a and 28a are fixed to the fixed contacts 19a and 17b or fixed respectively by its own elastic force. The switch element 30 or 31 is turned on by elastic contact with the contacts 20a and 17c, whereby the terminals 16 and 19 or the terminals 16 and 20 are electrically connected to each other and the ventilation fan is connected via the connector. Exhaust amount by the feeding is performed ventilating fan device location is switched.
[0039]
At this time, the continuity between the terminals 16 and 17 is the elastic contact between the contact portion 28a of the movable contact 23 of the switch element 30 and the fixed contact 17b, or the fixed contact 17c with the contact portion 28a of the movable contact 24 of the switch element 31. Since it is sustained by elastic contact, the air passage by the shutter device is kept open and the air supply is continued, so that smooth exhaust by the ventilation fan device is maintained.
[0040]
When the exhaust is unnecessary, the operation body 3, 4 and 5 is returned upward by pressing the reset operation body 7, and all the switch elements 29 to 31 are moved by the respective arm portions 9a. However, the free ends of the movable contacts 22, 23, 24 are lifted to turn off, the operation of the ventilation fan device stops, and the state of the air passage by the shutter device returns from the open state to the closed state.
[0041]
When the operating body 6 is pressed down regardless of whether the operating bodies 3 to 5 are in the pushed-in state or the upwardly returned state, the drive pin 10 is moved in cooperation with the heart-shaped cam groove 6a. The operating body 6 is held in the depressed state, and the movable contact 25 of the switch element 32 elastically contacts the fixed contact 21a with its own elastic force in conjunction with the downward movement of the operating body 6 to switch the switch element 32. Is turned on so that the terminals 16 and 21 are electrically connected and the lighting fixture is lit through the connector. When the lighting is not necessary, the operation body 6 in the pushed-in state is pressed again. The operating body 6 is returned upward by the urging force of the return spring 8, and in conjunction with this, the movable contact 25 of the switch element 32 is lifted by the arm portion 9a, and the contact portion 27a is separated from the fixed contact 21a. 32 is o Lighting equipment is turned off to return to the state.
[0042]
Thus, in this multiple switch device, the base 15 is supported by the plurality of switch elements 29 to 32 and the plurality of terminals 16 to 21 to form the switch mechanism portion 14, and the base 15 is connected to the casing 2. Since the switch mechanism section 14 is integrated with the operation mechanism section 1 in a fixed manner, the switch elements 29 to 32 can be assembled in a wide working space outside the casing 2 and then accommodated in the casing 2. The complexity of the assembling work of the switch elements 29 to 32 can be eliminated, and a multiple switch device with a stable switching operation can be obtained.
[0043]
Further, since the movable contacts 22 to 25 of the switch elements 29 to 32 are caulked and attached to the base 15, it is possible to simplify the attaching operation, and in particular, as in this embodiment, a pair of spring pieces 27. , 28 are connected by a single support portion 26, and the support portion 26 is caulked to attach the pair of spring pieces 27, 28 to the base 15 at the same time, the assembly man-hour can be further reduced. .
[0044]
Further, the movable contacts 22 to 25 of the switch elements 29 to 32 are formed of a conductive leaf spring material, and the fixed contacts 17a, 17b, 17c and fixed contacts 18a, 19a, 20a, and 21a are elastically contacted, and are moved away from fixed contacts 17a, 17b, and 17c and fixed contacts 18a, 19a, 20a, and 21a in conjunction with the upward movement of the operating bodies 29-32. Thus, the switching elements 29 to 32 can be switched in accordance with the vertical movement of the operating bodies 3 to 6 with a simple configuration.
[0045]
Further, the switch elements 29 to 30 are arranged in a line along the arrangement direction below the operation bodies 3 to 6, and the movable contacts 22 to 25 of the switch elements 29 to 32 are cantilevered to the base 15. Since the free end sides of the movable contacts 22 to 25 are extended in the same direction toward the arrangement direction of the operating bodies 3 to 6, the switch elements 29 to 32 are slightly lifted by slightly lifting the free end sides of the movable contacts 22 to 25. Therefore, the vertical movement stroke of the operating bodies 3 to 6 can be shortened as compared with the prior art.・ Compact size can be achieved.
[0046]
In this embodiment, the case where the locking claw 16c is tilted down and the movable contacts 22 to 25 are supported on the base 15 has been described. However, as shown in FIG. 12, the locking contacts 22 to 24 are locked. The shape of the hole 26b was slightly changed, and the shape of the locking hole 26b of the movable contact 25 was also changed in the same manner, and the hole 26b was inserted into the locking hole 26b as shown in FIGS. It is also possible to support the movable contacts 22 to 25 on the base 15 by twisting the locking claw portion 16b of the locking claw 16c. In this case, the movable claw portion 16b is supported by a tapered portion at the lower end of the locking claw portion 16b. Since the part 26 can be crimped, the movable contacts 22 to 25 can be supported easily and more firmly.
[0047]
【The invention's effect】
The present invention is implemented in the form as described above, and has the following effects.
[0048]
The multiple switch device according to the present invention includes an operation mechanism section and a switch mechanism section, and the switch mechanism section includes a plurality of switch elements and a plurality of terminals on a base outside the casing of the operation mechanism section to which the switch mechanism section is fixed. As a result, the assembly workability can be improved and a stable switching operation of a plurality of switch elements can be obtained.
[0049]
Further, each of the plurality of switch elements has a fixed contact fixed to the base and a movable contact that contacts and separates from the fixed contact, and the movable contact is attached by being crimped to the base. The work can be simplified.
[0050]
In addition, the movable contact is formed of a conductive leaf spring material, and the movable contact is elastically contacted with the fixed contact by its own elastic force in conjunction with the downward movement of the operation body. Since the movable contact is separated from the fixed contact against its own elastic force in conjunction with the movement, a plurality of switch elements can be switched according to the vertical movement of a plurality of operating bodies with a simple configuration. Can be made.
[0051]
Still further, the base is disposed below the plurality of operation bodies, and the plurality of switch elements are arranged on the base in a line along the arrangement direction of the plurality of operation bodies. The movable contact is fixed on the base in a cantilever state, and the free end side of the movable contact extends in the same direction toward the arrangement direction of the plurality of operating bodies. The vertical movement stroke of the operating body can be shortened, and the size of the multiple switch device in the vertical direction can be reduced to make it flat and compact.
[Brief description of the drawings]
FIG. 1 is a side view of a multiple switch device according to an embodiment of the present invention as viewed from one side surface with a cover removed.
FIG. 2 is a cross-sectional view of the multiple switch device along the short direction.
FIG. 3 is a side view as seen from one side of an operation mechanism section constituting the multiple switch device.
FIG. 4 is a plan view of a switch mechanism unit constituting the multiple switch device.
FIG. 5 is a side view seen from one side surface thereof.
FIG. 6 is a plan view of a base provided in the switch mechanism.
7 is a cross-sectional view taken along 7-7 in FIG.
8 is a cross-sectional view taken along 8-8 in FIG.
9 is a cross-sectional view taken along 9-9 of FIG.
FIG. 10 is a plan view of a movable contact provided in the switch mechanism.
FIG. 11 is a side view seen from one side surface thereof.
FIG. 12 is a plan view showing a modification of the movable contact.
FIG. 13 is a plan view showing a modification of the switch mechanism.
FIG. 14 is a side view seen from one side surface thereof.
FIG. 15 is a side view seen from one side of a conventional multiple switch device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Operation mechanism part 2 Casing 2a Opening 2b Fixing part 2c Tube part 3,4,5,6 Operation body 6a Heart-shaped cam groove 7 Reset operation body 8 Return spring 9 Lifting protrusion 9a Arm part 10 Drive pin 11 For engagement Plate 12 Compression spring 13 Cover 14 Switch mechanism 15 Base 15a Square hole 15b, 15c Circular hole 16 Terminal 16a Rising part 16b Locking claw 16c Locking claw 16d Positioning claw 17 Terminals 17a, 17b, 17c Fixed contact 18 Terminal 18a Fixed contact 19 Terminal 19a Fixed contact 20 Terminal 20a Fixed contact 21 Terminal 21a Fixed contact 22, 23, 24, 25 Movable contact 26 Support part 26a Positioning hole 26b Locking hole 27 Spring piece 27a Contact part 28 Spring piece 28a Contact part 29, 30, 31, 32 Switch element

Claims

An operating mechanism having a casing, a plurality of operating bodies held by the casing in a vertically movable manner, and a return spring for holding the plurality of operating bodies so as to freely move up and down ;
A plurality of switch elements that perform a switching operation by vertically moving each operating body, a plurality of terminals for connecting the plurality of switch elements to an external device, a plurality of switch elements, and a base that supports the plurality of terminals And a switch mechanism portion configured separately from the operation mechanism portion .
A array type switch device before Kimotodai said operating mechanism is fixed and said switching mechanism is integrated in the casing,
Each of the plurality of switch elements has a fixed contact fixed to the base and a movable contact formed of a conductive leaf spring material that contacts and separates from the fixed contact, and interlocks with the downward movement of the operation body. The movable contact is elastically contacted with the fixed contact by its own elastic force, and the movable contact is separated from the fixed contact against the elastic force of the operation body in conjunction with the upward movement of the operation body,
The movable contact has a pair of spring pieces, and the operating body has a protrusion inserted between the pair of spring pieces and a lower surface of the pair of spring pieces provided to extend from the protrusion. And arm portions that respectively contact,
The base is disposed below the plurality of operating bodies;
The plurality of switch elements are arranged on the base in a line along the arrangement direction of the plurality of operating bodies,
The movable contact is cantilevered on the base;
The multiple switch device, wherein a free end side of the movable contact extends in the same direction toward an arrangement direction of the plurality of operating bodies .

The multiple switch device according to claim 1, wherein the movable contact is attached by caulking to the base.

3. The multiple switch according to claim 1, wherein the movable contact has a flat plate-like support portion, and the pair of spring pieces rise from one edge of the support portion and are folded back to the other edge side. apparatus.