JP4100983B2

JP4100983B2 - Slide switch

Info

Publication number: JP4100983B2
Application number: JP2002203662A
Authority: JP
Inventors: 修芳賀; 達章川瀬
Original assignee: Alps Electric Co Ltd
Current assignee: Alps Alpine Co Ltd
Priority date: 2002-07-12
Filing date: 2002-07-12
Publication date: 2008-06-11
Anticipated expiration: 2022-07-12
Also published as: JP2004047289A

Description

【０００１】
【発明の属する技術分野】
本発明は薄型のスライドスイッチに関する。
【０００２】
【従来の技術】
従来のスライドスイッチの図面を説明すると、図１７は従来のスライドスイッチに係り、分解された状態の平面図、図１８は従来のスライドスイッチに係り、カバーを取り去った状態を示す平面図、図１９は図１８の１９−１９線における断面図である。
【０００３】
次に、従来のスライドスイッチの構成を図１７〜図１９に基づいて説明すると、合成樹脂の成型品からなるケーシング５１は、平板状の基部５１ａと、この基部５１ａの四方の周辺部から延びる壁部５１ｂと、前方に位置する壁部５１ｂの中央部に設けられた切り欠き部５１ｃとを有し、このケーシング５１は、基部５１ａと反対側の壁部５１ｂ側が開放状態となっている。
【０００４】
薄い金属板からなる複数個（ここでは３個）の固定接点５２，５３，５４は、それぞれ接点部５２ａ、５３ａ、５４ａと、端子部５２ｂ、５３ｂ、５４ｂとを有し、この固定接点５２，５３，５４は、長手方向に一列に並設された状態で、基部５１ａに埋設して取り付けられている。
【０００５】
そして、固定接点５２，５３，５４が埋設された際、接点部５２ａ、５３ａ、５４ａは、それぞれケーシング５１内の表面から露出すると共に、端子部５２ｂ、５３ｂ、５４ｂは、後方に位置する壁部５１ｂから突出した状態となっている。
【０００６】
また、固定接点５２，５３，５４が埋設された際、接点部５２ａ、５３ａ間と接点部５３ａ、５４ａ間を含むその延長上では、合成樹脂からなる基部５１ａのみの存在となっており、このため、薄型の要求で基部５１ａが薄肉となった場合、成形後の合成樹脂の収縮や温度変化によって、接点部５２ａ、５３ａ間と接点部５３ａ、５４ａ間を含むその延長上で、変形や反り等が大きくなると共に、その箇所の強度が弱くなる。
【０００７】
ブリキの金属板からなるカバー５５は、平板状部５５ａと、この平板状部５５ａから折り曲げられた複数個の取付脚５５ｂとを有する。
そして、このカバー５５は、平板状部５５ａでケーシング５１の開放部を覆うように、平板状部５５ａを壁部５１ｂに当接させ、取付脚５５ｂが壁部５１ｂの外面に沿って折り曲げられることによって、ケーシング５１に取り付けられる。
【０００８】
合成樹脂の成型品からなる可動体５６は、操作部５６ａと、この操作部５６ａに繋がって設けられた四角状の保持部５６ｂと、この保持部５６ｂの一面側に設けられた収納部５６ｃと、保持部５６ｂの後部に設けられたクリック用の凹凸部５６ｄとを有する。
【０００９】
そして、この可動体５６は、保持部５６ｂが基部５１aとカバー５５とで囲まれた箇所に収納された状態で、操作部５６ａが切り欠き部５１ｃを通って外方に突出した状態となっており、可動体５６は、図１８，図１９の矢印Ａ方向と矢印Ｂ方向にスライド移動可能となっている。
【００１０】
また、可動体５６は、全体が合成樹脂の成型品で形成されているため、成型後の合成樹脂の収縮や温度変化によって、操作部５６ａや保持部５６ｂは、変形や反り等が大きくなると共に、その強度が弱くなる。
【００１１】
金属板からなる帯状の可動接点５７は、両端部に設けられた接点部５７ａと、中央部の両側から突出した突部５７ｂとを有する。
そして、この可動接点５７は、突部５７ｂが可動体５６に掛け止めされた状態で、収納部５６ｃに収納されて、可動接点５７が可動体５６に伴って移動可能となっている。
【００１２】
また、可動接点５７が可動体５６に取り付けられた際、接点部５７ａは、固定接点５２，５３，５４の接点部５２ａ、５３ａ、５４ａに摺動して、接点部５２ａ、５３ａ、５４ａに接離可能となっている。
また、一方の接点部５７ａは、接点部５２ａ、５３ａに接離可能であると共に、他方の接点部５７ａは、接点部５３ａ、５４ａに接離可能となっている。
【００１３】
そして、一方の接点部５７ａが接点部５２ａに接触している時は、他方の接点部５７ａが接点部５３ａに接触して、固定接点５２，５３間が導通した状態となり、また、一方の接点部５７ａが接点部５３ａに接触している時は、他方の接点部５７ａが接点部５４ａに接触して、固定接点５３，５４間が導通した状態となって、固定接点５３がコモン接点となっている。
【００１４】
リン青銅板からなる帯状のクリック用の弾性片５８は、全体がへ字状をなし、その中央部に凸部５８ａが設けられ、この弾性片５８は、基部５１aとカバー５５とで囲まれた箇所に収納され、両端部が壁部５１ｂに当接した状態で、凸部５８ａが凹凸部５６ｄに弾接した状態となっている。
【００１５】
そして、可動体５６がスライド動作した時、凸部５８ａが凹凸部５６ｄと係脱して、弾性片５８と可動体５６の協働によって、可動体５６の移動にクリック感を持たせるようになっている。
【００１６】
このような構成を有する従来のスライドスイッチは、固定接点５２，５３，５４を埋設したケーシング５１，カバー５５，可動体５６，可動接点５７，及び弾性片５８の５部品が組み合わされて構成されている。
【００１７】
そして、５部品が組み合わされて構成されたスライドスイッチは、操作部５６ａをスライド動作すると、可動体５６は、弾性片５８との協働によって、可動体５６がクリック感を持って移動すると共に、可動接点５７が移動して、固定接点５２，５３間、或いは固定接点５３，５４間を導通するようになっている。
【００１８】
【発明が解決しようとする課題】
従来のスライドスイッチは、固定接点５２，５３，５４を埋設したケーシング５１，カバー５５，可動体５６，可動接点５７，及び弾性片５８の５部品で構成されているため、部品点数が多くなって、組立性が悪く、コスト高になるという問題がある。
また、カバー５５とクリック用の弾性片５８が別部材で構成されているため、部品点数が多くなって、コスト高になるばかりか、その組立工数が多くなって、生産性が悪くなるという問題がある。
また、固定接点５２，５３，５４を埋設したケーシング５１は、接点部５２ａ、５３ａ間と接点部５３ａ、５４ａ間を含むその延長上では、合成樹脂からなる基部５１ａのみの存在となっており、このため、薄型の要求で基体５１ａが薄肉となった場合、成型後の合成樹脂の収縮や温度変化によって、接点部５２ａ、５３ａ間と接点部５３ａ、５４ａ間を含むその延長上で、変形や反り等が大きくなると共に、その箇所の強度が弱いという問題がある。
また、可動体５６と可動接点５７が別部品で構成されているため、その組立性が悪く、コスト高になるばかりか、可動接点５７は、帯状の両端部に接点部５７ａが設けられているため、可動接点５７のスパーンが短く、固定接点２，３、４への接触性が悪いという問題がある。
また、可動体５６は、全体が合成樹脂の成型品で形成されているため、成型後の合成樹脂の収縮や温度変化によって、操作部５６ａや保持部５６ｂは、変形や反り等が大きくなると共に、その強度が弱くなるという問題がある。
【００１９】
そこで、本発明は生産性が良く、安価であると共に、ケーシングや可動体の精度の良いスライドスイッチを提供することを目的とする。
【００２０】
【課題を解決するための手段】
上記課題を解決するための第１の解決手段として、複数個の固定接点を取り付けた絶縁製のケーシングと、このケーシングに取り付けられたカバーと、前記ケーシングと前記カバーとによって移動可能に保持された絶縁製の可動体と、前記固定接点に対して接離可能となるように、前記可動体に取り付けられた金属板からなる可動接点とを備え、前記固定接点を埋設した前記ケーシングと、前記可動接点を埋設した前記可動体と、クリック用の弾性片を一体に設けた前記カバーの３点部品で構成され、前記可動体に弾接した前記弾性片は、前記可動体の移動時に前記可動体と協働して、前記可動体の移動にクリック感を持たせるようにし、前記可動体は、操作部と、この操作部に繋がった保持部を有し、前記保持部の中央部に孔が設けられ、前記可動接点は、前記可動体の前記保持部に埋設して取り付けられ、前記保持部の一端側で支持された第１の接触片と、前記保持部の他端側で支持された第２の接触片を有し、前記第１，第２の接触片は前記保持部の前記孔内に位置し、前記第１，第２の接触片の自由端側は、互いに交叉した状態で配置され、前記第１，第２の接触片の自由端の先端部が前記固定接点に接離するようにした構成とした。
【００２１】
また、第２の解決手段として、前記ケーシングは、前記固定接点を埋設した平板状の基部と、この基部の平面から突出した状態で、前記可動体の移動方向に延びて設けられた壁部を有し、前記カバーは、平板状部と、この平板状部から折り曲げられた折曲片と、この折曲片から前記可動体の移動方向に延びて形成されたクリック用の前記弾性片を有し、前記カバーは、前記折曲片が前記壁部の壁面で支持された状態で前記ケーシングに取り付けられると共に、前記可動体に弾接した前記弾性片は、前記可動体の移動時に前記可動体と協働して、前記可動体の移動にクリック感を持たせるようにした構成とした。
【００２２】
また、第３の解決手段として、前記折曲片は間隔を置いて一対設けられ、この一対の折曲片が前記壁部の壁面で支持されると共に、前記弾性片が前記一対の折曲片間に跨って、両持ち型に形成された構成とした。
また、第４の解決手段として、前記カバーがステンレス製の金属板で形成された構成とした。
【００２３】
また、第５の解決手段として、前記カバーは、前記平板状部から折り曲げ形成された１個、又は複数個の取付用の腕部を有し、前記腕部の先端部には円弧状部が設けられ、前記円弧状部がプリント基板に半田付け可能とした構成とした。
【００２４】
また、第６の解決手段として、金属板からなる前記固定接点は、前記可動接点の移動方向に並設して、前記ケーシングの平板状の基部に埋設されて取り付けられると共に、金属板からなる補強板が隣り合う前記固定接点間の延長上で、前記固定接点間を横切るように前記基部に埋設された構成とした。
【００２５】
また、第７の解決手段として、前記補強板が前記固定接点と繋がって形成された構成とした。
また、第８の解決手段として、前記補強板が前記固定接点間の両延長上に設けられた構成とした。
また、第９の解決手段として、前記ケーシングは、前記基部の平面から突出した壁部を有し、前記固定接点と前記補強板が同一の金属板からなり、前記補強板と繋がる前記固定接点の端部に設けられた折曲部が前記壁部に埋設された構成とした。
【００２７】
また、第１１の解決手段として、前記保持部の外周部には、金属板からなる補強体が前記保持体の外周部を囲むように埋設された構成とした。
また、第１２の解決手段として、前記補強体が前記可動接点に繋がって形成された構成とした。
また、第１３の解決手段として、前記補強体が前記操作部側に延びた状態で、前記操作部に埋設された構成とした。
【００２８】
【発明の実施の形態】
本発明のスライドスイッチの図面を説明すると、図１は本発明のスライドスイッチの第１実施例に係る平面図、図２は本発明のスライドスイッチの第１実施例に係る分解斜視図、図３は本発明のスライドスイッチの第１実施例に係り、ケーシング内の状態を示す要部断面図、図４は図３の４−４線における断面図、図５は図３の５−５線における断面図である。
【００２９】
また、図６は本発明のスライドスイッチの第１実施例に係り、ケーシングの平面図、図７は図６の７−７線における断面図、図８は図６の８−８線における断面図、図９は図６の９−９線における断面図、図１０は本発明のスライドスイッチの第１実施例に係り、可動体の平面図、図１１は図１０の１１−１１線における断面図、図１２は図１０の１２−１２線における断面図、図１３は図１０の１３−１３線における断面図である。
【００３０】
また、図１４は本発明のスライドスイッチの第１実施例に係り、可動体の製造方法を示す要部の断面図、図１５は本発明のスライドスイッチの第２実施例に係り、カバーの斜視図、図１６は本発明のスライドスイッチの第２実施例に係り、その取付状態を示す要部の断面図である。
【００３１】
次に、本発明のスライドスイッチの第１実施例の構成を図１〜図１４に基づいて説明すると、合成樹脂の成型品からなるケーシング１は、特に図６〜図９に示すように、平板状の基部１ａと、この基部１ａの四方の周辺部から延びる壁部１ｂと、前方に位置する壁部１ｂの中央部に設けられた切り欠き部１ｃと、後方に位置する壁部１ｂの内面に設けられた段差部１ｄと、基部１ａの前方部に位置し、基部１から突出して設けられたガイド部１ｅと、外周面に設けられた凹部からなる係止部１ｆ（図２参照）とを有し、このケーシング１は、基部１ａと反対側の壁部１ｂ側が開放状態となっている。
【００３２】
薄い金属板からなる複数個（ここでは３個）の固定接点２，３，４は、それぞれ接点部２ａ、３ａ、４ａと、端子部２ｂ、３ｂ、４ｂとを有し、この固定接点２，３，４は、長手方向に一列に並設された状態で、基部１ａに埋設して取り付けられている。
【００３３】
そして、固定接点２，３，４が埋設された際、接点部２ａ、３ａ、４ａは、それぞれケーシング１内の表面から露出（図６のハッチングの部分）すると共に、端子部２ｂ、３ｂ、４ｂは、後方に位置する壁部１ｂから突出した状態となっている。
【００３４】
また、固定接点３の両側に位置する固定接点２，４は、端部に設けられた折曲部２ｃ、４ｃを有し、この折曲部２ｃ、４ｃは、ケーシング１の壁部１ｂの位置で埋設されて、ケーシング１の補強手段となっている。
【００３５】
更に、中央部に位置する固定接点３は、端部に設けられた折曲部３ｃと、両側に位置する固定接点２，４方向に延びた補強板３ｄを有し、折曲部３ｃは、ケーシング１の壁部１ｂの位置で埋設されて、ケーシング１の補強手段となっていると共に、補強板３ｄは、基部１ａに埋設されて、基部１ａの反り防止や補強手段となっている。
【００３６】
即ち、補強板３ｄは、接点部２ａ、３ａ間と接点部３ａ、４ａ間の延長上で、接点部２ａ、３ａ間と接点部３ａ、４ａ間の両延長上を横切るように配置されており、これによって、固定接点２，３間、及び固定接点３，４間の基部１ａに補強手段が形成されたものとなっている。
【００３７】
その結果、固定接点２，３，４が埋設された際、接点部２ａ、３ａ間と接点部３ａ、４ａ間の延長上には、補強板３ｄが介在したものとなっているため、薄型の要求で基体１ａが薄肉となった場合でも、成型後の合成樹脂の収縮や温度変化が生じても、接点部２ａ、３ａ間と接点部３ａ、４ａ間を含むその延長上での変形や反り等を抑えることができると共に、その箇所の強度を強くすることができ、従って、基部１ａ全体の反り防止と補強を行うことができる。
【００３８】
なお、補強板３ｄは、接点部間の両延長上に設けたもので説明したが、一方の延長上に設けても良く、また、補強板３ｄは、中央に位置する固定接点３に設けたもので説明したが、両側に位置する固定接点２，４に設けても良い。
また、補強板３は、固定接点と一体に設けたもので説明したが、固定接点から切り離された状態で形成しても良い。
【００３９】
ステンレス製の金属板からなるカバー５は、平板状部５ａと、この平板状部５ａから折り曲げられた一対の側壁５ｂと、この側壁５ｂからＬ字状に切り曲げされた腕部５ｃと、側壁５ｂに設けられた係止片５ｄと、平板状部５ａの前方から折り曲げられた前面壁５ｅと、平板状部５ａの後方で、間隔を置いて折り曲げられた一対の折曲片５ｆと、この一対の折曲片５ｆに跨って形成され、両持ち型に支持されたクリック用の帯状の弾性片５ｇとを有する。
【００４０】
このカバー５は、平板状部５ａでケーシング１の開放部を覆うように、平板状部５ａを壁部１ｂに当接させた状態で、係止片５ｄを係止部１ｆに折曲、係止して、ケーシング１に取り付けられる。
【００４１】
そして、このカバー５が取り付けられた際、前面壁５ｅが前方の壁部１ｂに係止されると共に、後方に位置する折曲片５ｆは、壁部１ｂの段差部１ｄに当接、支持された状態となる。
即ち、折曲片５ｆは、壁部１ｂの壁面に支持された状態となっているため、弾性片５ｇの根本部が補強され、従って、折曲片５ｆは、弾性片５ｇからの力によって、外側に変形（逃げる）することが防止されている。
【００４２】
なお、弾性片５ｆは、両持ち型の支持状態のもので説明したが、片持ち型の支持でも良い。
【００４３】
合成樹脂の成型品からなる可動体６は、特に図１０〜図１３に示すように、操作部６ａと、この操作部６ａに繋がって設けられたロ字状の保持部６ｂと、この保持部６ｂの中央部に設けられた孔６ｃと、保持部６ｂの後部に設けられたクリック用の凸部６ｄとを有する。
【００４４】
そして、この可動体６は、保持部６ｂが基部１ｂとカバー５とで囲まれた箇所に収納された状態で、操作部６ａが切り欠き部１ｃを通って外方に突出した状態となっており、可動体６は、図１，図３の矢印Ａ方向と矢印Ｂ方向にスライド移動可能となっている。
【００４５】
また、可動体６が組み込まれた際、ケーシング１のガイド部１ｅは、孔６ｃ内に位置して、可動体６は、ガイド部１ｅと前方に位置する壁部１ｂとで挟まれた状態となって、可動体６がガイド部１ｅと壁部１ｂとの間でガイドされた状態で移動するようになっている。
【００４６】
更に、可動体６が組み込まれた際、可動体６の後方部は弾性片５ｇに弾接した状態となっており、可動体６がスライド動作した時、凸部６ｄが弾性片５ｇの凸部と係脱して、弾性片５ｇと可動体６の協働によって、可動体６の移動にクリック感を持たせるようになっている。
【００４８】
金属板からなる可動接点７は、特に図１０〜図１３に示すように、互いに並設された帯状の第１，第２の接触片７ａ、７ｂと、この第１，第２の接触片７ａ、７ｂの根本部で繋がった略ロ字状の第１の補強体７ｃと、この第１の補強体７ｃから直角に延びる帯状の第２の補強体７ｄとを有する。
【００４９】
そして、この可動接点７は、第１，第２の接触片７ａ、７ｂが孔６ｃ内に位置した状態で、ロ字状の第１の補強体７ｃはロ字状の保持部６ｂに埋設されると共に、第２の補強体７ｄは操作部６ａに埋設された状態となって、可動体６に取り付けられている。
【００５０】
また、可動接点７が可動体６に取り付けられた際、第１の接触片７ａの端部（根本部）は、保持部６ｂの一端側で支持されると共に、第２の接触片７ｂの端部（根本部）は、保持部６ｂの他端側で支持された状態となっている。
そして、第１，第２の接触片７ａ、７ｂは、その根本部から折り曲げられて、自由端側が互いに交叉した状態で配設されている。
【００５１】
即ち、保持部６ｂの一端側で支持された第１の接触片７ａの自由端部は、保持部６ｂの他端部側の近くまで延び、また、保持部６ｂの他端側で支持された第２の接触片７ｂの自由端部は、保持部６ｂの一端部側の近くまで延び、これによって、第１，第２の接触片７ａ、７ｂのスパーンが長くなって、固定接点２，３，４への接触状態を安定すると共に、その寿命を長くしている。
【００５２】
また、合成樹脂の成型品で形成された可動体６の保持部６ｂには、第１の補強体７ｃが埋設されているため、成型後の合成樹脂の収縮や温度変化が生じても、保持部６ｂの変形や反り等を抑えることができると共に、保持部６ｂの強度を強くすることができる。
更に、可動体６の操作部６ａには、第２の補強体７ｄが埋設されているため、成型後の合成樹脂の収縮や温度変化が生じても、操作部６ａの変形や反り等を抑えることができると共に、操作部６ａの強度を強くすることができる。
【００５３】
次に、このような構成を有する可動体６の製造方法を図１４に基づいて説明すると、第１，第２の金型１１，１２間には、空洞部（キャビティ）１３が設けられ、この空洞部１３内に金属板からなる可動接点７が配置された状態となっている。
この時、図１４に示すように、第２の補強体７ｄの近傍には、一対の押さえピン１４，１５が配置され、第２の補強体７ｄが挟まれた状態となっている。
【００５４】
次に、例えば、操作部６ａの先端部分の湯口から合成樹脂の湯が空洞部１３内に注入されると、第２の補強体７ｄは、湯圧によってその位置が変動しようとするが、第２の補強体７ｄは、一対の押さえピン１４，１５によって位置が規制されて、適正な位置で埋設された状態となる。
【００５５】
そして、このようにして製造された可動体６は、図１３に示すように、操作部６ａにおいては、押さえピン１４，１５によって形成された一対の凹部６ｅを有すると共に、この凹部６ｅの底面と第２の補強体７ｄとの間に形成された薄肉部６ｆを有する。
このようにして形成された薄肉部６ｆの存在によって、操作部６ａにおける絶縁が確実となる。
【００５６】
また、可動接点７は、可動体６と共にケーシング１に取り付けられるが、可動接点７が取り付けられた際、第１の接触片７ａは、固定接点２，３の接点部２ａ、３ａに摺動し、また、第２の接触片７ｂは、固定接点３，４の接点部３ａ、４ａに摺動して、それぞれ接離可能となっている。
【００５７】
そして、一方の第１の接触片７ａが接点部２ａに接触している時は、他方の第２の接触片７ｂが接点部３ａに接触して、固定接点２，３間が導通した状態となり、また、一方の第１の接触片７ａが接点部３ａに接触している時は、他方の第２の接触片７ｂが接点部４ａに接触して、固定接点３，４間が導通した状態となって、固定接点３がコモン接点となっている。
【００５８】
このような構成を有する本発明のスライドスイッチは、固定接点２，３，４を埋設したケーシング１と、クリック用の弾性片５ｇを一体に設けたカバー５と，可動接点７を埋設した可動体６の３部品が組み合わされて構成されている。
【００５９】
そして、３部品が組み合わされて構成されたスライドスイッチは、操作部６ａをスライド動作すると、可動体６は、弾性片５ｇとの協働によって、可動体６がクリック感を持って移動すると共に、可動接点７が移動して、固定接点２，３間、或いは固定接点３，４間を導通するようになっている。
【００６０】
また、このように構成された薄型のスライドスイッチは、図４，図７に示すように、基部１ａの一面がプリント基板８上に配置されて、プリント基板８に面実装されるようになっている。
この時、基部１ａの下面に設けられた突起１ｇがプリント基板８の孔（図示せず）に挿入されて位置決めされると共に、端子部２ｂ、３ｂ、４ｂ、及びカバー５の腕部５ｃは、プリント基板８上の配線パターン（図示せず）上に位置して、それぞれ半田付けされる。
その結果、端子部２ｂ、３ｂ、４ｂは所望の電気回路に接続されると共に、腕部５ｃは接地された状態となる。
【００６１】
また、図１５，図１６は本発明のスライドスイッチの第２実施例を示し、この第２実施例を説明すると、カバー５に設けられた腕部５ｃは、その先端部に円弧状部が形成されたものである。
その他の構成は、前記第１実施例と同様であり、同一部品に同一番号を付し、ここではその説明を省略する。
【００６２】
そして、このように構成されたスライドスイッチは、図１６に示すように、プリント基板８上に載置され、円弧状部を有する腕部５ｃが配線パターンに半田付けされる。
この時、円弧状部によって、腕部５ｃへの半田付性が良く、腕部５ｃにおける半田の量が多くなって、確実な半田付ができる。
【００６３】
また、第１実施例のようなＬ字状の腕部５ｃにおいては、折曲によるスプリングバックによって、Ｌ字状に折り曲げられた腕部５ｃにバラツキが生じ、これによって、平板状部５ａの上端と腕部５ｃの下端との間の寸法が精度良く出せないが、第２実施例のように、腕部５ｃに円弧状部を設けると、平板状部５ａの上端と腕部５ｃの下端との間の寸法が精度良く出せるようになる。
【００６４】
【発明の効果】
本発明のスライドスイッチは、複数個の固定接点を取り付けた絶縁製のケーシングと、このケーシングに取り付けられたカバーと、ケーシングとカバーとによって移動可能に保持された絶縁製の可動体と、固定接点に対して接離可能となるように、可動体に取り付けられた金属板からなる可動接点とを備え、固定接点を埋設したケーシングと、可動接点を埋設した可動体と、クリック用の弾性片を一体に設けたカバーの３点部品で構成され、可動体に弾接した弾性片は、可動体の移動時に可動体と協働して、可動体の移動にクリック感を持たせるようにした構成とした。
このような構成によって、部品点数が３点部品と少なく、組立性が極めて良好となって、生産性が良く、安価なスライドスイッチを提供できる。
【００６５】
また、ケーシングは、固定接点を埋設した平板状の基部と、この基部の平面から突出した状態で、可動体の移動方向に延びて設けられた壁部を有し、カバーは、平板状部と、この平板状部から折り曲げられた折曲片と、この折曲片から可動体の移動方向に延びて形成されたクリック用の弾性片を有し、カバーは、折曲片が壁部の壁面で支持された状態でケーシングに取り付けられると共に、可動体に弾接した弾性片は、可動体の移動時に可動体と協働して、可動体の移動にクリック感を持たせるようにした構成とした。
このような構成によって、クリック用の弾性片がカバーと一体化され、従来に比して部品点数が少なくなって、安価で、生産性の良好なスライドスイッチを提供することができる。
また、弾性片が結合された折曲片は、壁部の壁面に支持された状態となっているため、弾性片の根本部が補強され、従って、折曲片は、弾性片からの力によって、外側に変形（逃げる）することが防止されて、長期にわたって安定したクリックを提供できる。
【００６６】
また、折曲片は間隔を置いて一対設けられ、この一対の折曲片が壁部の壁面で支持されると共に、弾性片が一対の折曲片間に跨って、両持ち型に形成されたため、弾性片のバネ性を強くできて、強いクリック感を持たせることができる。
【００６７】
また、カバーがステンレス製の金属板で形成されたため、クリック感を持たせることができると共に、半田付の可能なカバーが得られる。
【００６８】
また、カバーは、平板状部から折り曲げ形成された１個、又は複数個の取付用の腕部を有し、腕部の先端部には円弧状部が設けられ、円弧状部がプリント基板に半田付け可能としたため、平板状部の上端と腕部の下端との間の寸法が精度良く出せると共に、腕部の半田付の確実なものが得られる。
【００６９】
また、金属板からなる固定接点は、可動接点の移動方向に並設して、ケーシングの平板状の基部に埋設されて取り付けられると共に、金属板からなる補強板が隣り合う固定接点間の延長上で、固定接点間を横切るように基部に埋設されたため、接点部間の延長上に補強板が介在し、薄型の要求で基体が薄肉となった場合でも、成型後の合成樹脂の収縮や温度変化が生じても、接点部間を含むその延長上での変形や反り等を抑えることができると共に、その箇所の強度を強くすることができ、従って、基部全体の反り防止と補強を行うことができる。
【００７０】
また、補強板が固定接点と繋がって形成されたため、補強板の形成が容易となって、生産性の良好なものが得られる。
【００７１】
また、補強板が固定接点間の両延長上に設けられたため、基部全体の反りを一層防止できると共に、補強を一層強固に行うことができる。
【００７２】
また、ケーシングは、基部の平面から突出した壁部を有し、固定接点に設けられた折曲部が壁部に埋設されたため、ケーシングの補強を行うことができる。
【００７３】
また、可動体は、操作部と、この操作部に繋がった保持部を有し、可動接点は、可動体の保持部に埋設して取り付けられ、保持部の一端側で支持された第１の接触片と、保持部の他端側で支持された第２の接触片を有し、第１，第２の接触片の自由端側は、互いに交叉した状態で配置され、第１，第２の接触片の自由端の先端部が固定接点に接離するようにしたため、可動体と可動接点とが一体化された状態となって、組立性が良く、安価であると共に、第１，第２の接触片のスパーンが長くなって、固定接点への接触状態が安定すると共に、その寿命を長くすることができる。
【００７４】
また、保持部の外周部には、金属板からなる補強体が保持体の外周部を囲むように埋設されたため、補強体の存在によって、合成樹脂の成型品で形成された可動体の保持部は、成型後の合成樹脂の収縮や温度変化が生じても、保持部の変形や反り等を抑えることができると共に、保持部の強度を強くすることができる。
【００７５】
また、補強体が可動接点に繋がって形成されたため、補強体の形成が容易となって、生産性の良好なものが得られる。
【００７６】
また、補強体が操作部側に延びた状態で、操作部に埋設されたため、可動体の成型後の合成樹脂の収縮や温度変化が生じても、操作部の変形や反り等を抑えることができると共に、操作部の強度を強くすることができる。
【図面の簡単な説明】
【図１】本発明のスライドスイッチの第１実施例に係る平面図。
【図２】本発明のスライドスイッチの第１実施例に係る分解斜視図。
【図３】本発明のスライドスイッチの第１実施例に係り、ケーシング内の状態を示す要部断面図。
【図４】図３の４−４線における断面図。
【図５】図３の５−５線における断面図。
【図６】本発明のスライドスイッチの第１実施例に係り、ケーシングの平面図。
【図７】図６の７−７線における断面図。
【図８】図６の８−８線における断面図。
【図９】図６の９−９線における断面図。
【図１０】本発明のスライドスイッチの第１実施例に係り、可動体の平面図。
【図１１】図１０の１１−１１線における断面図。
【図１２】図１０の１２−１２線における断面図。
【図１３】図１０の１３−１３線における断面図。
【図１４】本発明のスライドスイッチの第１実施例に係り、可動体の製造方法を示す要部の断面図。
【図１５】本発明のスライドスイッチの第２実施例に係り、カバーの斜視図。
【図１６】本発明のスライドスイッチの第２実施例に係り、その取付状態を示す要部の断面図。
【図１７】従来のスライドスイッチに係り、分解された状態の平面図。
【図１８】従来のスライドスイッチに係り、カバーを取り去った状態を示す平面図。
【図１９】図１８の１９−１９線における断面図。
【符号の説明】
１ケーシング
１ａ基部
１ｂ壁部
１ｃ切り欠き部
１ｄ段差部
１ｅガイド部
１ｆ係止部
１ｇ突起
２固定接点
２ａ接点部
２ｂ端子部
２ｃ折曲部
３固定接点
３ａ接点部
３ｂ端子部
３ｃ折曲部
３ｄ補強板
４固定接点
４ａ接点部
４ｂ端子部
４ｃ折曲部
５カバー
５ａ平板状部
５ｂ側壁
５ｃ腕部
５ｄ係止片
５ｅ前面壁
５ｆ折曲片
５ｇ弾性片
６可動体
６ａ操作部
６ｂ保持部
６ｃ孔
６ｄ凸部
６ｅ凹部
６ｆ薄肉部
７可動接点
７ａ第１の接触片
７ｂ第２の接触片
７ｃ第１の補強体
７ｄ第２の補強体
８プリント基板
１１第１の金型
１２第２の金型
１３空洞部
１４押さえピン
１５押さえピン[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a thin slide switch.
[0002]
[Prior art]
FIG. 17 relates to a conventional slide switch and is a disassembled plan view. FIG. 18 relates to a conventional slide switch, and FIG. 19 is a plan view showing a state where a cover is removed. FIG. 19 is a cross-sectional view taken along line 19-19 of FIG.
[0003]
Next, the configuration of a conventional slide switch will be described with reference to FIGS. 17 to 19. A casing 51 made of a synthetic resin molded product has a flat base 51a and walls extending from the four peripheral portions of the base 51a. The casing 51 has a notch 51c provided in the center of the wall 51b located in the front, and the casing 51 is open on the side of the wall 51b opposite to the base 51a.
[0004]
A plurality of (in this case, three) fixed contacts 52, 53, 54 made of thin metal plates have contact portions 52a, 53a, 54a and terminal portions 52b, 53b, 54b, respectively. 53 and 54 are embedded and attached to the base 51a in a state of being arranged in a line in the longitudinal direction.
[0005]
When the fixed contacts 52, 53, and 54 are embedded, the contact portions 52a, 53a, and 54a are exposed from the surface inside the casing 51, and the terminal portions 52b, 53b, and 54b are wall portions that are located rearward. It is in a state protruding from 51b.
[0006]
Further, when the fixed contacts 52, 53, 54 are embedded, only the base portion 51a made of synthetic resin is present on the extension including the contact portions 52a, 53a and the contact portions 53a, 54a. Because of the demand for thinness Part When 51a becomes thin, due to shrinkage and temperature change of the synthetic resin after molding, deformation, warpage, etc. increase on the extension including between the contact parts 52a, 53a and between the contact parts 53a, 54a, The strength of the part is weakened.
[0007]
The cover 55 made of a tin metal plate has a flat plate portion 55a and a plurality of mounting legs 55b bent from the flat plate portion 55a.
And this cover 55 makes the flat plate part 55a contact | abut to the wall part 51b so that the open part of the casing 51 may be covered with the flat plate part 55a, and the attachment leg 55b is bent along the outer surface of the wall part 51b. Is attached to the casing 51.
[0008]
The movable body 56 made of a synthetic resin molded product includes an operation portion 56a, a square holding portion 56b provided connected to the operation portion 56a, and a storage portion 56c provided on one surface side of the holding portion 56b. And an uneven portion 56d for click provided at the rear portion of the holding portion 56b.
[0009]
The movable body 56 has a holding portion 56b with a base 51. a And the cover 55 are housed in a portion surrounded by the cover 55, and the operation portion 56a protrudes outward through the cutout portion 51c. It can slide in the A direction and the arrow B direction.
[0010]
Further, since the movable body 56 is entirely formed of a synthetic resin molded product, the operation portion 56a and the holding portion 56b are greatly deformed and warped due to shrinkage and temperature change of the synthetic resin after molding. , Its strength is weakened.
[0011]
The strip-shaped movable contact 57 made of a metal plate has contact portions 57a provided at both ends, and protrusions 57b protruding from both sides of the central portion.
The movable contact 57 is accommodated in the accommodating portion 56 c in a state where the protrusion 57 b is hooked on the movable body 56, and the movable contact 57 is movable along with the movable body 56.
[0012]
Further, when the movable contact 57 is attached to the movable body 56, the contact portion 57a slides on the contact portions 52a, 53a, 54a of the fixed contacts 52, 53, 54 and contacts the contact portions 52a, 53a, 54a. It is possible to separate.
In addition, one contact portion 57a can contact and separate from the contact portions 52a and 53a, and the other contact portion 57a can contact and separate from the contact portions 53a and 54a.
[0013]
When one contact portion 57a is in contact with the contact portion 52a, the other contact portion 57a is in contact with the contact portion 53a, and the fixed contacts 52 and 53 are in a conductive state. When the portion 57a is in contact with the contact portion 53a, the other contact portion 57a is in contact with the contact portion 54a, and the fixed contact 53, 54 is in a conductive state, and the fixed contact 53 becomes a common contact. ing.
[0014]
The band-shaped click elastic piece 58 made of a phosphor bronze plate is formed in a generally U-shape and has a convex portion at the center. 58 a, and the elastic piece 58 has a base 51. a The projection 58a is elastically contacted with the concave-convex portion 56d in a state where both ends are in contact with the wall portion 51b.
[0015]
When the movable body 56 slides, the convex portion 58a is disengaged from the concave and convex portion 56d, and the movement of the movable body 56 is given a click feeling by the cooperation of the elastic piece 58 and the movable body 56. Yes.
[0016]
The conventional slide switch having such a configuration is configured by combining five parts of a casing 51 in which fixed contacts 52, 53, 54 are embedded, a cover 55, a movable body 56, a movable contact 57, and an elastic piece 58. Yes.
[0017]
In the slide switch configured by combining five parts, when the operation unit 56a is slid, the movable body 56 moves with a click feeling in cooperation with the elastic piece 58. The movable contact 57 is moved to conduct between the fixed contacts 52 and 53 or between the fixed contacts 53 and 54.
[0018]
[Problems to be solved by the invention]
Since the conventional slide switch is composed of five parts including the casing 51 in which the fixed contacts 52, 53, 54 are embedded, the cover 55, the movable body 56, the movable contact 57, and the elastic piece 58, the number of parts increases. There is a problem that the assemblability is poor and the cost is high.
Further, since the cover 55 and the click elastic piece 58 are formed of separate members, the number of parts is increased, resulting in an increase in cost and an increase in the number of assembly steps, resulting in poor productivity. There is.
In addition, the casing 51 in which the fixed contacts 52, 53, 54 are embedded has only a base portion 51a made of synthetic resin on its extension including the contact portions 52a, 53a and the contact portions 53a, 54a. For this reason, when the base 51a becomes thin due to a demand for thinness, deformation or temperature change between the contact portions 52a and 53a and between the contact portions 53a and 54a due to shrinkage or temperature change of the synthetic resin after molding. There is a problem that warpage or the like becomes large and the strength of the portion is weak.
In addition, since the movable body 56 and the movable contact 57 are formed of separate parts, the assemblability is poor and the cost is increased. The movable contact 57 is provided with contact portions 57a at both ends of the belt. Therefore, there is a problem that the span of the movable contact 57 is short and the contact property to the fixed contacts 2, 3, 4 is poor.
Further, since the movable body 56 is entirely formed of a synthetic resin molded product, the operation portion 56a and the holding portion 56b are greatly deformed and warped due to shrinkage and temperature change of the synthetic resin after molding. There is a problem that the strength is weakened.
[0019]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a slide switch that is highly productive and inexpensive and that has a high accuracy of a casing and a movable body.
[0020]
[Means for Solving the Problems]
As a first means for solving the above problems, an insulating casing having a plurality of fixed contacts attached thereto, a cover attached to the casing, and the casing and the cover are held movably. An insulating movable body, and a movable contact made of a metal plate attached to the movable body so as to be capable of contacting and separating from the fixed contact; the casing in which the fixed contact is embedded; and the movable The movable body is composed of three parts, the movable body having a contact embedded therein and the cover integrally provided with a click elastic piece, and the elastic piece elastically contacting the movable body is movable when the movable body is moved. So that the movement of the movable body has a click feeling The movable body has an operation portion and a holding portion connected to the operation portion, a hole is provided in a central portion of the holding portion, and the movable contact is embedded in the holding portion of the movable body. A first contact piece supported on one end side of the holding part and a second contact piece supported on the other end side of the holding part, and the first and second contact pieces Is located in the hole of the holding portion, and the free end sides of the first and second contact pieces are arranged so as to cross each other, and the tip ends of the free ends of the first and second contact pieces So that the The configuration was as follows.
[0021]
As a second solution, the casing includes a flat plate-like base portion in which the fixed contact is embedded, and a wall portion that extends from the plane of the base portion and extends in the moving direction of the movable body. The cover includes a flat plate portion, a bent piece bent from the flat plate portion, and the elastic piece for click formed extending from the bent piece in the moving direction of the movable body. The cover is attached to the casing in a state in which the bent piece is supported by the wall surface of the wall portion, and the elastic piece elastically contacted with the movable body is configured so that the movable body moves when the movable body moves. In cooperation with the moving body, the moving body has a click feeling.
[0022]
As a third solving means, a pair of the bent pieces are provided at intervals, the pair of bent pieces are supported by the wall surface of the wall portion, and the elastic piece is the pair of bent pieces. It was set as the structure formed in the both-ends support type | mold over it.
As a fourth solution, the cover is formed of a stainless steel metal plate.
[0023]
As a fifth solving means, the cover has one or a plurality of mounting arm portions formed by bending from the flat plate-like portion, and an arc-shaped portion is provided at the tip of the arm portion. The arc-shaped portion is provided and can be soldered to the printed circuit board.
[0024]
Further, as a sixth solution, the fixed contact made of a metal plate is arranged in parallel in the moving direction of the movable contact and is embedded and attached to the flat base of the casing, and the reinforcement made of the metal plate. It was set as the structure by which the board was embed | buried under the said base so that it might cross between the said fixed contacts on the extension between the said adjacent fixed contacts.
[0025]
As a seventh solution, the reinforcing plate is formed to be connected to the fixed contact.
As an eighth solution, the reinforcing plate is provided on both extensions between the fixed contacts.
As a ninth solution, the casing has a wall portion protruding from the plane of the base portion, and the fixed contact And the reinforcing plate are made of the same metal plate, and the end of the fixed contact connected to the reinforcing plate The bent portion provided on the wall portion is embedded in the wall portion.
[0027]
As an eleventh solution, a reinforcing body made of a metal plate is embedded in the outer peripheral portion of the holding portion so as to surround the outer peripheral portion of the holding body.
Further, as a twelfth solving means, the reinforcing body is formed to be connected to the movable contact.
As a thirteenth solution, the reinforcing member is embedded in the operation unit in a state of extending to the operation unit side.
[0028]
DETAILED DESCRIPTION OF THE INVENTION
1 is a plan view according to a first embodiment of the slide switch of the present invention, FIG. 2 is an exploded perspective view according to the first embodiment of the slide switch of the present invention, and FIG. FIG. 4 relates to a first embodiment of the slide switch of the present invention, and is a cross-sectional view of the main part showing a state in the casing, FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. 3, and FIG. It is sectional drawing.
[0029]
6 is a plan view of the casing according to the first embodiment of the slide switch of the present invention, FIG. 7 is a sectional view taken along line 7-7 in FIG. 6, and FIG. 8 is a sectional view taken along line 8-8 in FIG. 9 is a sectional view taken along the line 9-9 in FIG. 6, FIG. 10 is a plan view of the movable body according to the first embodiment of the slide switch of the present invention, and FIG. 11 is a sectional view taken along the line 11-11 in FIG. 12 is a sectional view taken along line 12-12 of FIG. 10, and FIG. 13 is a sectional view taken along line 13-13 of FIG.
[0030]
14 is a cross-sectional view of the main part showing the manufacturing method of the movable body according to the first embodiment of the slide switch of the present invention. FIG. 15 is a perspective view of the cover according to the second embodiment of the slide switch of the present invention. FIGS. 16A and 16B are cross-sectional views of the main part of the second embodiment of the slide switch of the present invention showing the mounting state.
[0031]
Next, the configuration of the first embodiment of the slide switch of the present invention will be described with reference to FIGS. 1 to 14. A casing 1 made of a synthetic resin molded product is a flat plate as shown in FIGS. Base 1a, a wall 1b extending from the four peripheral portions of the base 1a, a notch 1c provided at the center of the wall 1b located at the front, and an inner surface of the wall 1b located at the rear Step portion 1d provided on the front side of the base portion 1a In And a guide portion 1e provided so as to protrude from the base portion 1 and a locking portion 1f (see FIG. 2) formed of a concave portion provided on the outer peripheral surface. The casing 1 is provided on the opposite side of the base portion 1a. The wall 1b side is in an open state.
[0032]
A plurality (three in this case) of fixed contacts 2, 3 and 4 made of thin metal plates have contact portions 2a, 3a and 4a and terminal portions 2b, 3b and 4b, respectively. 3 and 4 are embedded in the base 1a in a state of being arranged in a line in the longitudinal direction.
[0033]
When the fixed contacts 2, 3, and 4 are embedded, the contact portions 2a, 3a, and 4a are exposed from the surface inside the casing 1 (hatched portions in FIG. 6) and the terminal portions 2b, 3b, and 4b, respectively. Is in a state of protruding from the wall portion 1b located rearward.
[0034]
Further, the fixed contacts 2 and 4 located on both sides of the fixed contact 3 have bent portions 2c and 4c provided at the end portions, and the bent portions 2c and 4c are positions of the wall portion 1b of the casing 1. The reinforcing means of the casing 1 is embedded.
[0035]
Furthermore, the fixed contact 3 located in the center has a bent portion 3c provided at the end, and a reinforcing plate 3d extending in the directions of the fixed contacts 2 and 4 located on both sides. The bent portion 3c It is embedded at the position of the wall portion 1b of the casing 1 and serves as a reinforcing means for the casing 1, and the reinforcing plate 3d is embedded in the base portion 1a to prevent warping and reinforce the base portion 1a.
[0036]
That is, the reinforcing plate 3d is arranged so as to cross between the contact portions 2a, 3a and between the contact portions 3a, 4a, and between the contact portions 2a, 3a and between the contact portions 3a, 4a. Thus, reinforcing means is formed between the fixed contacts 2 and 3 and the base 1 a between the fixed contacts 3 and 4.
[0037]
As a result, when the fixed contacts 2, 3, 4 are embedded, the reinforcement plate 3 d is interposed between the contact portions 2 a, 3 a and the extension between the contact portions 3 a, 4 a. Even if the base 1a becomes thin as required, even if the synthetic resin after molding shrinks or changes in temperature, deformation or warpage on the extension including the contact portions 2a, 3a and the contact portions 3a, 4a. Etc. can be suppressed, and the strength of the portion can be increased. Therefore, it is possible to prevent warpage and reinforce the entire base portion 1a.
[0038]
The reinforcing plate 3d is described as being provided on both extensions between the contact portions. However, the reinforcing plate 3d may be provided on one of the extensions, and the reinforcing plate 3d is provided on the fixed contact 3 located in the center. As described above, the fixed contacts 2 and 4 located on both sides may be provided.
The reinforcing plate 3 is described as being provided integrally with the fixed contact, but may be formed in a state separated from the fixed contact.
[0039]
The cover 5 made of a stainless steel metal plate includes a flat plate portion 5a, a pair of side walls 5b bent from the flat plate portion 5a, arm portions 5c cut from the side walls 5b into an L shape, and side walls. A locking piece 5d provided on 5b, a front wall 5e bent from the front of the flat plate portion 5a, a pair of bent pieces 5f bent at intervals behind the flat plate portion 5a, It has a strip-shaped elastic piece 5g for click, which is formed across a pair of bent pieces 5f and supported by both ends.
[0040]
The cover 5 is formed by bending the engaging piece 5d into the engaging portion 1f in a state where the flat portion 5a is in contact with the wall portion 1b so that the open portion of the casing 1 is covered with the flat portion 5a. It is stopped and attached to the casing 1.
[0041]
When the cover 5 is attached, the front wall 5e is locked to the front wall 1b, and the bent piece 5f located at the rear is in contact with and supported by the step 1d of the wall 1b. It becomes the state.
That is, since the bent piece 5f is supported by the wall surface of the wall portion 1b, the base portion of the elastic piece 5g is reinforced, and accordingly, the bent piece 5f is caused by the force from the elastic piece 5g. Deformation (escape) to the outside is prevented.
[0042]
The elastic piece 5f has been described as being supported in a double-sided manner, but can be supported in a cantilevered manner.
[0043]
As shown in FIGS. 10 to 13 in particular, the movable body 6 made of a synthetic resin molded product includes an operation portion 6a, a square-shaped holding portion 6b connected to the operation portion 6a, and the holding portion. It has the hole 6c provided in the center part of 6b, and the convex part 6d for a click provided in the rear part of the holding | maintenance part 6b.
[0044]
And this movable body 6 will be in the state which the operation part 6a protruded outside through the notch part 1c in the state in which the holding | maintenance part 6b was accommodated in the location enclosed by the base 1b and the cover 5. FIG. The movable body 6 is slidable in the directions of arrows A and B in FIGS.
[0045]
When the movable body 6 is assembled, the guide portion 1e of the casing 1 is located in the hole 6c, and the movable body 6 is sandwiched between the guide portion 1e and the wall portion 1b located in front. Thus, the movable body 6 moves while being guided between the guide portion 1e and the wall portion 1b.
[0046]
Further, when the movable body 6 is assembled, the rear portion of the movable body 6 is in elastic contact with the elastic piece 5g, and when the movable body 6 slides, the convex portion 6d becomes the convex portion of the elastic piece 5g. The movement of the movable body 6 is given a click feeling by the cooperation of the elastic piece 5 g and the movable body 6.
[0048]
As shown in FIGS. 10 to 13 in particular, the movable contact 7 made of a metal plate includes strip-shaped first and second contact pieces 7a and 7b arranged in parallel to each other, and the first and second contact pieces 7a. , 7b and a first reinforcing body 7c having a substantially square shape and a second reinforcing body 7d having a strip shape extending perpendicularly from the first reinforcing body 7c.
[0049]
The movable contact 7 has the first and second contact pieces 7a and 7b positioned in the hole 6c, and the first reinforcing body 7c having a square shape is embedded in the holder 6b having a square shape. At the same time, the second reinforcing body 7d is embedded in the operation portion 6a and attached to the movable body 6.
[0050]
When the movable contact 7 is attached to the movable body 6, the end portion (root portion) of the first contact piece 7a is supported on one end side of the holding portion 6b and the end of the second contact piece 7b. The part (root part) is in a state of being supported on the other end side of the holding part 6b.
The first and second contact pieces 7a and 7b are bent from their roots and are arranged with their free ends crossing each other.
[0051]
That is, the free end portion of the first contact piece 7a supported on one end side of the holding portion 6b extends to near the other end side of the holding portion 6b, and is supported on the other end side of the holding portion 6b. The free end portion of the second contact piece 7b extends to the vicinity of one end side of the holding portion 6b, whereby the spans of the first and second contact pieces 7a, 7b are lengthened, and the fixed contacts 2, 3 , 4 is stabilized and the life is extended.
[0052]
In addition, since the first reinforcing body 7c is embedded in the holding portion 6b of the movable body 6 formed of a synthetic resin molded product, even if the synthetic resin shrinks or changes in temperature after molding, the holding body 6b holds the first reinforcing body 7c. The deformation and warpage of the portion 6b can be suppressed, and the strength of the holding portion 6b can be increased.
Further, since the second reinforcing body 7d is embedded in the operation portion 6a of the movable body 6, even if the synthetic resin after molding shrinks or changes in temperature, the deformation or warpage of the operation portion 6a is suppressed. In addition, the strength of the operation unit 6a can be increased.
[0053]
Next, a manufacturing method of the movable body 6 having such a configuration will be described with reference to FIG. 14. A cavity portion (cavity) 13 is provided between the first and second molds 11 and 12. The movable contact 7 made of a metal plate is disposed in the hollow portion 13.
At this time, as shown in FIG. 14, a pair of pressing pins 14 and 15 are disposed in the vicinity of the second reinforcing body 7d, and the second reinforcing body 7d is sandwiched therebetween.
[0054]
Next, for example, when synthetic resin hot water is injected into the cavity 13 from the gate at the tip of the operation portion 6a, the position of the second reinforcing body 7d tends to fluctuate due to the hot water pressure. The position of the second reinforcing body 7d is regulated by the pair of pressing pins 14 and 15, and is embedded in an appropriate position.
[0055]
As shown in FIG. 13, the movable body 6 manufactured in this way has a pair of recesses 6e formed by the pressing pins 14 and 15 in the operation portion 6a, and the bottom surface of the recess 6e. It has a thin portion 6f formed between the second reinforcing body 7d.
The presence of the thin portion 6f formed in this way ensures insulation in the operation portion 6a.
[0056]
The movable contact 7 is attached to the casing 1 together with the movable body 6, but when the movable contact 7 is attached, the first contact piece 7 a slides on the contact portions 2 a and 3 a of the fixed contacts 2 and 3. In addition, the second contact piece 7b slides on the contact portions 3a and 4a of the fixed contacts 3 and 4 and can be contacted and separated.
[0057]
When one of the first contact pieces 7a is in contact with the contact portion 2a, the other second contact piece 7b is in contact with the contact portion 3a, and the fixed contacts 2 and 3 are electrically connected. In addition, when one first contact piece 7a is in contact with the contact portion 3a, the other second contact piece 7b is in contact with the contact portion 4a, and the fixed contacts 3 and 4 are electrically connected. Thus, the fixed contact 3 is a common contact.
[0058]
The slide switch of the present invention having such a configuration includes a casing 1 in which fixed contacts 2, 3 and 4 are embedded, a cover 5 in which an elastic piece 5g for click is integrally provided, and a movable body in which a movable contact 7 is embedded. 6 parts are combined.
[0059]
When the slide switch configured by combining the three parts slides on the operation unit 6a, the movable body 6 moves with a click feeling in cooperation with the elastic piece 5g. The movable contact 7 is moved to conduct between the fixed contacts 2 and 3 or between the fixed contacts 3 and 4.
[0060]
Further, the thin slide switch configured in this manner is mounted on the printed circuit board 8 by placing one surface of the base 1a on the printed circuit board 8 as shown in FIGS. Yes.
At this time, the protrusion 1g provided on the lower surface of the base 1a is inserted into a hole (not shown) of the printed circuit board 8 and positioned, and the terminal portions 2b, 3b, 4b and the arm portion 5c of the cover 5 are It is located on a wiring pattern (not shown) on the printed board 8 and soldered.
As a result, the terminal portions 2b, 3b, and 4b are connected to a desired electric circuit, and the arm portion 5c is grounded.
[0061]
FIGS. 15 and 16 show a second embodiment of the slide switch according to the present invention. The second embodiment will be described. The arm portion 5c provided on the cover 5 is formed with an arc-shaped portion at the tip thereof. It has been done.
Other configurations are the same as those in the first embodiment, and the same parts are denoted by the same reference numerals, and the description thereof is omitted here.
[0062]
Then, as shown in FIG. 16, the slide switch configured as described above is placed on the printed circuit board 8, and the arm portion 5c having an arc-shaped portion is soldered to the wiring pattern.
At this time, due to the arc-shaped portion, the solderability to the arm portion 5c is good, the amount of solder in the arm portion 5c is increased, and reliable soldering can be performed.
[0063]
Further, in the L-shaped arm portion 5c as in the first embodiment, the arm portion 5c bent in the L-shape is uneven due to the springback caused by the bending, and thereby the upper end of the flat plate-like portion 5a. However, if the arm portion 5c is provided with an arcuate portion as in the second embodiment, the upper end of the flat plate portion 5a and the lower end of the arm portion 5c The dimension between can be accurately obtained.
[0064]
【The invention's effect】
The slide switch of the present invention includes an insulating casing having a plurality of fixed contacts, a cover attached to the casing, an insulating movable body held movably by the casing and the cover, and a fixed contact. A movable contact made of a metal plate attached to the movable body, and a casing with a fixed contact embedded therein, a movable body with the movable contact embedded therein, and an elastic piece for click. Consists of three-piece parts of a cover provided integrally, and the elastic piece elastically contacting the movable body cooperates with the movable body when moving the movable body to give a click feeling to the movement of the movable body It was.
With such a configuration, the number of parts is as small as three parts, the assemblability is extremely good, the productivity is good, and an inexpensive slide switch can be provided.
[0065]
The casing has a flat plate-like base portion in which a fixed contact is embedded, and a wall portion provided to extend in the moving direction of the movable body in a state of protruding from the flat surface of the base portion. A bent piece bent from the flat plate-like portion and a click elastic piece formed extending from the bent piece in the moving direction of the movable body. The elastic piece that is attached to the casing while being supported by the elastic member and elastically contacted with the movable body cooperates with the movable body at the time of movement of the movable body, and has a configuration that gives a click feeling to the movement of the movable body. did.
With such a configuration, the click elastic piece is integrated with the cover, the number of parts is reduced as compared with the conventional one, and a low-cost and highly productive slide switch can be provided.
Further, since the bent piece to which the elastic piece is coupled is supported by the wall surface of the wall portion, the base part of the elastic piece is reinforced, and therefore the bent piece is caused by the force from the elastic piece. Further, it is possible to provide a stable click over a long period of time by preventing deformation (escape) to the outside.
[0066]
In addition, a pair of bent pieces are provided at an interval, the pair of bent pieces are supported by the wall surface of the wall portion, and an elastic piece is formed between the pair of bent pieces in a doubly supported manner. Therefore, the spring property of the elastic piece can be strengthened, and a strong click feeling can be given.
[0067]
Further, since the cover is formed of a stainless steel metal plate, it is possible to provide a click feeling and obtain a solderable cover.
[0068]
Further, the cover has one or a plurality of mounting arm portions formed by bending from the flat plate-like portion, and an arc-shaped portion is provided at the tip of the arm portion, and the arc-shaped portion is formed on the printed circuit board. Since soldering is possible, the dimension between the upper end of the flat plate portion and the lower end of the arm portion can be accurately obtained, and a reliable soldering of the arm portion can be obtained.
[0069]
In addition, the fixed contact made of a metal plate is juxtaposed in the moving direction of the movable contact, embedded in the flat base portion of the casing and attached, and the reinforcing plate made of the metal plate extends between adjacent fixed contacts. Since the base is embedded so as to cross between the fixed contacts, a reinforcing plate is interposed on the extension between the contact points, and even if the base becomes thin due to thinness requirements, the shrinkage and temperature of the synthetic resin after molding Even if a change occurs, it is possible to suppress deformation and warping on the extension including between the contact portions, and to increase the strength of the portion, and therefore to prevent and reinforce the entire base portion. Can do.
[0070]
In addition, since the reinforcing plate is connected to the fixed contact, the reinforcing plate can be easily formed, and a product with good productivity can be obtained.
[0071]
In addition, since the reinforcing plate is provided on both extensions between the fixed contacts, it is possible to further prevent warping of the entire base portion and to further strengthen the reinforcement.
[0072]
Moreover, since the casing has the wall part protruded from the plane of the base part, and the bending part provided in the fixed contact was embed | buried under the wall part, the casing can be reinforced.
[0073]
The movable body has an operation portion and a holding portion connected to the operation portion, and the movable contact is embedded and attached to the holding portion of the movable body, and is supported by one end side of the holding portion. The contact piece has a second contact piece supported on the other end side of the holding portion, and the free end sides of the first and second contact pieces are arranged so as to cross each other. Since the tip of the free end of the contact piece is in contact with and away from the fixed contact, the movable body and the movable contact are integrated, and the assembly is good and inexpensive. The span of the contact piece 2 becomes longer, the contact state with the fixed contact is stabilized, and the life of the contact piece can be extended.
[0074]
In addition, since a reinforcing body made of a metal plate is embedded in the outer peripheral portion of the holding portion so as to surround the outer peripheral portion of the holding body, the holding portion of the movable body formed of a synthetic resin molded product due to the presence of the reinforcing body Even if the synthetic resin after molding shrinks or changes in temperature, the holding portion can be prevented from being deformed or warped, and the strength of the holding portion can be increased.
[0075]
Further, since the reinforcing body is formed to be connected to the movable contact, the reinforcing body can be easily formed, and a product with good productivity can be obtained.
[0076]
In addition, since the reinforcement body is embedded in the operation section in a state of extending to the operation section side, it is possible to suppress deformation or warping of the operation section even when the synthetic resin shrinks or changes in temperature after the movable body is molded. In addition, the strength of the operation unit can be increased.
[Brief description of the drawings]
FIG. 1 is a plan view according to a first embodiment of a slide switch of the present invention.
FIG. 2 is an exploded perspective view according to the first embodiment of the slide switch of the present invention.
FIG. 3 is a cross-sectional view of a principal part showing a state in the casing according to the first embodiment of the slide switch of the present invention.
4 is a cross-sectional view taken along line 4-4 of FIG.
5 is a cross-sectional view taken along line 5-5 of FIG.
FIG. 6 is a plan view of a casing according to the first embodiment of the slide switch of the present invention.
7 is a cross-sectional view taken along line 7-7 in FIG.
8 is a cross-sectional view taken along line 8-8 in FIG.
9 is a cross-sectional view taken along line 9-9 in FIG.
FIG. 10 is a plan view of a movable body according to the first embodiment of the slide switch of the present invention.
11 is a cross-sectional view taken along line 11-11 in FIG.
12 is a sectional view taken along line 12-12 of FIG.
13 is a cross-sectional view taken along line 13-13 in FIG.
FIG. 14 is a cross-sectional view of the main part showing the method of manufacturing the movable body according to the first embodiment of the slide switch of the present invention.
FIG. 15 is a perspective view of a cover according to a second embodiment of the slide switch of the present invention.
FIG. 16 is a cross-sectional view of a main part showing a mounting state according to the second embodiment of the slide switch of the present invention.
FIG. 17 is an exploded plan view of a conventional slide switch.
FIG. 18 is a plan view showing a state in which a cover is removed according to a conventional slide switch.
19 is a cross-sectional view taken along line 19-19 in FIG.
[Explanation of symbols]
1 casing
1a base
1b Wall
1c Notch
1d Stepped part
1e Guide part
1f Locking part
1g protrusion
2 Fixed contacts
2a Contact part
2b terminal
2c bent part
3 Fixed contacts
3a Contact part
3b terminal
3c bent part
3d reinforcing plate
4 Fixed contacts
4a Contact part
4b Terminal section
4c Folding part
5 Cover
5a Flat part
5b side wall
5c Arm
5d Locking piece
5e Front wall
5f bent piece
5g elastic piece
6 Movable body
6a Operation part
6b Holding part
6c hole
6d convex part
6e recess
6f Thin part
7 Movable contacts
7a First contact piece
7b Second contact piece
7c 1st reinforcement body
7d second reinforcement
8 Printed circuit board
11 First mold
12 Second mold
13 Cavity
14 Holding pin
15 Holding pin

Claims

An insulating casing having a plurality of fixed contacts attached thereto, a cover attached to the casing, an insulating movable body movably held by the casing and the cover, and a contact with the fixed contacts. A movable contact made of a metal plate attached to the movable body so as to be separable, the casing in which the fixed contact is embedded, the movable body in which the movable contact is embedded, and an elastic piece for click The elastic piece, which is constituted by three parts of the cover integrally provided, and elastically contacted with the movable body cooperates with the movable body during the movement of the movable body, so that the movement of the movable body is clicked. The movable body has an operation portion and a holding portion connected to the operation portion, and a hole is provided in a central portion of the holding portion. Said A first contact piece that is embedded in and attached to the holding part of the moving body and supported on one end side of the holding part; and a second contact piece supported on the other end side of the holding part, The first and second contact pieces are located in the hole of the holding portion, and the free end sides of the first and second contact pieces are arranged in a state of crossing each other, and the first and second contact pieces are arranged. A slide switch characterized in that a tip end of a free end of a contact piece comes in contact with and separates from the fixed contact .

The casing has a flat plate-like base portion in which the fixed contact is embedded, and a wall portion extending in the moving direction of the movable body in a state protruding from the flat surface of the base portion, and the cover is flat plate-like Part, a bent piece bent from the flat plate-like part, and an elastic piece for click formed extending from the bent piece in the moving direction of the movable body, and the cover includes the bent part The elastic piece, which is attached to the casing in a state where the piece is supported by the wall surface of the wall portion and elastically contacts the movable body, cooperates with the movable body when the movable body moves, and the movable body 2. The slide switch according to claim 1, wherein a click feeling is given to the movement of the slide switch.

A pair of the bent pieces are provided at an interval, the pair of bent pieces are supported by the wall surface of the wall portion, and the elastic piece is formed in a double-supported manner across the pair of bent pieces. The slide switch according to claim 2, wherein the slide switch is provided.

4. The slide switch according to claim 2, wherein the cover is made of a stainless steel metal plate.

The cover has one or a plurality of mounting arm portions formed by bending from the flat plate-like portion, and an arc-shaped portion is provided at a tip portion of the arm portion, and the arc-shaped portion is printed. 5. The slide switch according to claim 2, wherein the slide switch can be soldered to the substrate.

The fixed contact made of a metal plate is juxtaposed in the moving direction of the movable contact, embedded in a flat base portion of the casing and attached, and a reinforcing plate made of a metal plate is between the adjacent fixed contacts. 6. The slide switch according to claim 1, wherein the slide switch is embedded in the base portion so as to cross between the fixed contacts.

The slide switch according to claim 6, wherein the reinforcing plate is connected to the fixed contact.

8. The slide switch according to claim 6, wherein the reinforcing plate is provided on both extensions between the fixed contacts.

The casing has a wall portion protruding from the plane of the base portion, the fixed contact and the reinforcing plate are made of the same metal plate, and a bent portion provided at an end portion of the fixed contact connected to the reinforcing plate Is embedded in the wall portion, the slide switch according to any one of claims 6 to 8.

The slide switch according to any one of claims 1 to 9, wherein a reinforcing body made of a metal plate is embedded in the outer peripheral portion of the holding portion so as to surround the outer peripheral portion of the holding body.

The slide switch according to claim 10, wherein the reinforcing body is formed to be connected to the movable contact.

The slide switch according to claim 10 or 11 , wherein the reinforcing body is embedded in the operation portion in a state of extending to the operation portion side.