JP2004047289A

JP2004047289A - Slide switch

Info

Publication number: JP2004047289A
Application number: JP2002203662A
Authority: JP
Inventors: Osamu Haga; 芳賀　修; Tatsuaki Kawase; 川瀬　達章
Original assignee: Alps Electric Co Ltd
Current assignee: Alps Alpine Co Ltd
Priority date: 2002-07-12
Filing date: 2002-07-12
Publication date: 2004-02-12
Anticipated expiration: 2022-07-12
Also published as: JP4100983B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive slide switch having excellent productivity, wherein a casing and a movable body have excellent accuracy. <P>SOLUTION: This switch is composed of three components, a casing 1 in which fixed contacts 2, 3 are embedded, a movable body 6 in which a movable contact 7 is embedded, and a cover 5 integrally provided with a clicking elastic piece 5g. Since the elastic piece 5g brought into elastic contact with the movable body 6 is designed so as to give clicking touch to the movement of the movable body 6 in cooperation with the movable body 6 when the movable body 6 is moved, an inexpensive slide switch using a small number of components such as three components, having excellent productivity, and very easy to assemble can be obtained. <P>COPYRIGHT: (C)2004,JPO

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５１ｂ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６８ａが設けられ、この弾性片５８は、基部５１ｂ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。
【００２６】
また、第１０の解決手段として、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。
【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の前方部の位置し、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。
【００４７】
なお、可動体６は、保持部６ｂに孔６ｃを設けたもので説明したが、孔６ｃを無くして、保持部６ｂの全体が薄板状に形成されたものでも良い。
【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]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a thin slide switch.
[0002]
[Prior art]
FIG. 17 is a plan view of the conventional slide switch in a disassembled state, FIG. 18 is a plan view of the conventional slide switch in a state where a cover is removed, and FIG. FIG. 19 is a sectional view taken along line 19-19 of FIG.
[0003]
Next, a 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 a wall extending from four peripheral portions of the base 51a. The casing 51 has a portion 51b and a cutout portion 51c provided at the center of the wall portion 51b located forward, and the casing 51 has an open state on the wall portion 51b side opposite to the base portion 51a.
[0004]
A plurality (three in this case) of fixed contacts 52, 53, 54 made of a thin metal plate have contact portions 52a, 53a, 54a and terminal portions 52b, 53b, 54b, respectively. The 53 and 54 are buried 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, 54 are buried, the contact portions 52a, 53a, 54a are respectively exposed from the surface inside the casing 51, and the terminal portions 52b, 53b, 54b are connected to the rear wall portion. It is in a state protruding from 51b.
[0006]
When the fixed contacts 52, 53, 54 are buried, only the base 51a made of synthetic resin is present on the extension including the portion between the contact portions 52a, 53a and the portion between the contact portions 53a, 54a. Therefore, when the thickness of the base body 51a is reduced due to a demand for thinness, deformation or warping occurs on the extension including the contact portions 52a and 53a and the contact portions 53a and 54a due to shrinkage and temperature change of the synthetic resin after molding. And the like become large, and the strength of the portion becomes weak.
[0007]
The cover 55 made of a tin metal plate has a flat portion 55a and a plurality of mounting legs 55b bent from the flat portion 55a.
The cover 55 is configured such that the flat portion 55a contacts the wall portion 51b so that the open portion of the casing 51 is covered with the flat portion 55a, and the mounting leg 55b is bent along the outer surface of the wall portion 51b. Is attached to the casing 51.
[0008]
The movable body 56 made of a synthetic resin molded product includes an operation part 56a, a rectangular holding part 56b provided so as to be connected to the operation part 56a, and a storage part 56c provided on one surface side of the holding part 56b. , A click projection / recess portion 56d provided at a rear portion of the holding portion 56b.
[0009]
The movable body 56 is in a state in which the operating portion 56a projects outward through the cutout portion 51c in a state where the holding portion 56b is housed in a location surrounded by the base portion 51b and the cover 55. The movable body 56 is slidable in directions indicated by arrows A and B in FIGS. 18 and 19.
[0010]
Further, since the movable body 56 is entirely formed of a molded product of synthetic resin, the operating 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 projecting from both sides of the center.
The movable contact 57 is stored in the storage portion 56c in a state where the protrusion 57b is hung on the movable body 56, and the movable contact 57 is movable with the movable body 56.
[0012]
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 detachable.
Further, one contact portion 57a can be connected to and separated from the contact portions 52a and 53a, and the other contact portion 57a can be connected to and separated from the contact portions 53a and 54a.
[0013]
When one of the contact portions 57a is in contact with the contact portion 52a, the other contact portion 57a is in contact with the contact portion 53a, and a state is established between the fixed contacts 52 and 53. When the portion 57a is in contact with the contact portion 53a, the other contact portion 57a comes into contact with the contact portion 54a, and the state between the fixed contacts 53 and 54 becomes conductive, and the fixed contact 53 becomes a common contact. ing.
[0014]
The strip-shaped elastic piece 58 for click made of a phosphor bronze plate has an overall letter shape, and a convex portion 68a is provided at the center thereof. The elastic piece 58 is surrounded by the base 51b and the cover 55. The convex portion 58a is in a state of being elastically contacted with the uneven portion 56d in a state where the convex portion 58a is stored in a place and both end portions abut on the wall portion 51b.
[0015]
Then, when the movable body 56 slides, the convex portion 58a is disengaged from the uneven portion 56d, and the elastic piece 58 and the movable body 56 cooperate to give a click feeling to the movement of the movable body 56. I have.
[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. I have.
[0017]
When the slide switch configured by combining the five parts slides the operation portion 56a, the movable body 56 moves with a click feeling by cooperation with the elastic piece 58, The movable contact 57 moves so as 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]
The conventional slide switch is composed of five parts: a casing 51 in which fixed contacts 52, 53, and 54 are embedded, a cover 55, a movable body 56, a movable contact 57, and an elastic piece 58. However, 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 as separate members, not only the number of parts is increased and the cost is increased, but also the number of assembling steps is increased and the productivity is deteriorated. There is.
In addition, the casing 51 in which the fixed contacts 52, 53, 54 are embedded has only the base 51a made of synthetic resin on the extension including between the contact portions 52a, 53a and between the contact portions 53a, 54a. For this reason, when the base 51a becomes thin due to the demand for thinness, deformation or temperature change due to shrinkage or temperature change of the synthetic resin after molding, including extension between the contact portions 52a, 53a and contact portions 53a, 54a. There is a problem that the warpage or the like becomes large and the strength of the portion is weak.
Further, since the movable body 56 and the movable contact 57 are formed as separate components, the assemblability is poor and the cost is increased. In addition, the movable contact 57 has contact portions 57a at both ends of the strip. Therefore, there is a problem that the span of the movable contact 57 is short and the contact with the fixed contacts 2, 3, and 4 is poor.
Further, since the movable body 56 is entirely formed of a molded product of synthetic resin, the operating portion 56a and the holding portion 56b are greatly deformed and warped due to shrinkage and temperature change of the synthetic resin after molding. However, there is a problem that its strength is weakened.
[0019]
Therefore, an object of the present invention is to provide a slide switch which has high productivity, is inexpensive, and has 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 to which a plurality of fixed contacts are attached, a cover attached to the casing, and a casing movably held by the casing and the cover. An insulating movable body, a movable contact made of a metal plate attached to the movable body so as to be able to contact and separate from the fixed contact, the casing having the fixed contact embedded therein; The movable body having a contact embedded therein and the three-piece part of the cover integrally provided with a click elastic piece are provided. The elastic piece elastically in contact with the movable body is provided with the movable body when the movable body moves. In cooperation with, the moving body has a click feeling.
[0021]
As a second solution, the casing includes a flat base having the fixed contact embedded therein, and a wall extending in the moving direction of the movable body while protruding from a plane of the base. The cover has a flat part, a bent piece bent from the flat part, 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 where the bent piece is supported by the wall surface of the wall, and the elastic piece elastically contacting the movable body is configured to move the movable body when the movable body moves. In cooperation with, the moving body has a click feeling.
[0022]
As a third solution, a pair of bent pieces are provided at an interval, and the pair of bent pieces are supported by a wall surface of the wall portion, and the elastic piece is formed of the pair of bent pieces. The structure was formed to be a double-supported type with a span.
As a fourth solution, the cover is formed of a stainless steel metal plate.
[0023]
As a fifth solution, the cover has one or a plurality of mounting arms bent from the flat plate-like portion, and an arc-shaped portion is provided at the tip of the arm. And the arc-shaped portion can be soldered to a printed circuit board.
[0024]
As a sixth solution, the fixed contacts made of a metal plate are juxtaposed in the moving direction of the movable contacts, embedded and attached to a flat base of the casing, and are reinforced by a metal plate. A plate is embedded in the base so as to extend between the fixed contacts on an extension between the adjacent fixed contacts.
[0025]
As a seventh solution, the reinforcing plate is formed so as 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 protruding from a plane of the base, and a bent portion provided on the fixed contact is embedded in the wall.
[0026]
As a tenth solution, the movable body has an operating part and a holding part connected to the operating part, and the movable contact is embedded and attached to the holding part of the movable body, It has a first contact piece supported on one end side of the holding section and a second contact piece supported on the other end side of the holding section, and the free end sides of the first and second contact pieces are The first and second contact pieces are disposed so as to intersect with each other, and the free ends of the first and second contact pieces come into contact with and separate from the fixed contact.
[0027]
Further, as an eleventh solution, a reinforcing member 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 member.
As a twelfth solution, the reinforcing member is formed so as to be connected to the movable contact.
Further, as a thirteenth solution, the reinforcing member is embedded in the operation part in a state of extending to the operation part side.
[0028]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a plan view of a slide switch according to a first embodiment of the present invention, FIG. 2 is an exploded perspective view of the slide switch according to the first embodiment of the present invention, and FIG. 3 is a sectional view of a main part showing a state inside the casing, FIG. 4 is a sectional view taken along line 4-4 in FIG. 3, and FIG. 5 is a sectional view taken along line 5-5 in FIG. It is sectional drawing.
[0029]
6 is a plan view of a casing, FIG. 7 is a sectional view taken along line 7-7 of FIG. 6, and FIG. 8 is a sectional view taken along line 8-8 of FIG. 9 is a sectional view taken along line 9-9 of FIG. 6, FIG. 10 is a plan view of a movable body according to the first embodiment of the slide switch of the present invention, and FIG. 11 is a sectional view taken along line 11-11 of FIG. 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]
FIG. 14 is a sectional view of a main part of a slide switch according to a first embodiment of the present invention, showing a method of manufacturing a movable body. FIG. 15 is a perspective view of a cover according to a second embodiment of the slide switch of the present invention. FIG. 16 and FIG. 16 are cross-sectional views of essential parts showing a mounted state of a slide switch according to a second embodiment of the present invention.
[0031]
Next, the structure of a slide switch according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 14. The casing 1 made of a synthetic resin molded product is, as shown in FIGS. Base 1a, a wall 1b extending from four sides of the base 1a, a notch 1c provided at the center of the front wall 1b, and an inner surface of the rear wall 1b. , A guide portion 1e located in front of the base 1a and protruding from the base 1, and a locking portion 1f (see FIG. 2) formed of a concave portion provided on the outer peripheral surface. This casing 1 has an open state on the wall 1b side opposite to the base 1a.
[0032]
A plurality (three in this case) of fixed contacts 2, 3 and 4 made of a thin metal plate have contact portions 2a, 3a and 4a and terminal portions 2b, 3b and 4b, respectively. 3 and 4 are buried and attached to the base 1a in a state of being arranged in a line in the longitudinal direction.
[0033]
When the fixed contacts 2, 3, 4 are buried, the contact portions 2a, 3a, 4a are respectively exposed from the surface in the casing 1 (hatched portions in FIG. 6) and the terminal portions 2b, 3b, 4b Is in a state protruding from the wall portion 1b located at the rear.
[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 ends, and the bent portions 2c and 4c are located at positions of the wall portion 1b of the casing 1. And serves as reinforcing means for the casing 1.
[0035]
Further, the fixed contact 3 located at the central portion has a bent portion 3c provided at an end portion, and a reinforcing plate 3d extending in the direction of the fixed contacts 2 and 4 located on both sides. It is buried at the position of the wall 1b of the casing 1 and serves as reinforcing means for the casing 1, and the reinforcing plate 3d is buried in the base 1a to prevent warpage of the base 1a and serve as reinforcing means.
[0036]
That is, the reinforcing plate 3d is disposed so as to cross over the extension between the contact portions 2a, 3a and between the contact portions 3a, 4a on the extension between the contact portions 2a, 3a and between the contact portions 3a, 4a. Thereby, reinforcing means is formed on the base 1a between the fixed contacts 2 and 3 and between the fixed contacts 3 and 4.
[0037]
As a result, when the fixed contacts 2, 3 and 4 are buried, the reinforcing plate 3d is interposed between the contact portions 2a and 3a and the extension between the contact portions 3a and 4a. Even if the base 1a becomes thinner due to a request, even if the synthetic resin after molding shrinks or changes in temperature, deformation or warping on the extension including the portions between the contact portions 2a and 3a and between the contact portions 3a and 4a. And the like can be suppressed, and the strength of the portion can be increased. Therefore, the entire base portion 1a can be prevented from warping and reinforced.
[0038]
Although the reinforcing plate 3d has been described as being provided on both extensions between the contact portions, it may be provided on one of the extensions, and the reinforcing plate 3d is provided on the fixed contact 3 located at the center. However, it may be provided in the fixed contacts 2 and 4 located on both sides.
Further, the reinforcing plate 3 has been 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, an arm portion 5c cut from the side wall 5b into an L shape, and a side wall. 5b, a locking piece 5d, a front wall 5e bent from the front of the flat part 5a, and a pair of bent pieces 5f bent at an interval behind the flat part 5a. It has a band-shaped elastic piece for click 5g which is formed so as to straddle a pair of bent pieces 5f and is supported by a double-supporting type.
[0040]
The cover 5 is formed by bending the locking piece 5d to the locking portion 1f while keeping the flat portion 5a in contact with the wall 1b so that the open portion of the casing 1 is covered by the flat portion 5a. 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 comes into contact with and is supported by the step 1d of the wall 1b. State.
That is, since the bent piece 5f is supported by the wall surface of the wall portion 1b, the root of the elastic piece 5g is reinforced. Therefore, the bent piece 5f is moved by the force from the elastic piece 5g. Deformation (runaway) to the outside is prevented.
[0042]
Although the elastic piece 5f has been described as a double-supported support state, it may be a single-supported type.
[0043]
As shown in FIGS. 10 to 13, the movable body 6 made of a synthetic resin molded product includes an operation unit 6 a, a square-shaped holding unit 6 b provided so as to be connected to the operation unit 6 a, It has a hole 6c provided at the center of 6b and a convex portion 6d for clicking provided at the rear of the holding portion 6b.
[0044]
The movable body 6 is in a state in which the operating unit 6a projects outward through the notch 1c in a state where the holding unit 6b is housed in a location surrounded by the base 1b and the cover 5. 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 1e of the casing 1 is located in the hole 6c, and the movable body 6 is sandwiched between the guide 1e and the wall 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 incorporated, the rear portion of the movable body 6 is in a state of being 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. With the cooperation of the elastic piece 5g and the movable body 6, the movement of the movable body 6 has a click feeling.
[0047]
Although the movable body 6 has been described with the holding portion 6b provided with the hole 6c, the holding portion 6b may be formed in a thin plate shape without the hole 6c.
[0048]
As shown in FIGS. 10 to 13, the movable contact 7 made of a metal plate includes first and second strip-shaped contact pieces 7 a and 7 b arranged side by side with each other, and the first and second contact pieces 7 a. , 7b, and a first reinforcing member 7c having a substantially rectangular shape and connected at a root portion of the first reinforcing member 7b, and a second reinforcing member 7d having a band shape extending perpendicularly from the first reinforcing member 7c.
[0049]
The movable contact 7 is embedded in the square-shaped first reinforcing member 7c in the square-shaped holding portion 6b with the first and second contact pieces 7a and 7b positioned in the holes 6c. At the same time, the second reinforcing member 7d is mounted on the movable member 6 in a state of being buried in the operation portion 6a.
[0050]
When the movable contact 7 is attached to the movable body 6, the end (root) of the first contact piece 7a is supported by one end of the holding portion 6b, and the end of the second contact piece 7b. The part (root part) is supported by the other end of the holding part 6b.
The first and second contact pieces 7a and 7b are bent from their roots and are disposed with their free ends crossing each other.
[0051]
That is, the free end of the first contact piece 7a supported at one end of the holding portion 6b extends to near the other end of the holding portion 6b, and is supported at the other end of the holding portion 6b. The free end of the second contact piece 7b extends to near the one end side of the holding part 6b, whereby the span of the first and second contact pieces 7a, 7b becomes longer, and the fixed contacts 2, 3 , 4 and the life thereof is extended.
[0052]
Further, since the first reinforcing member 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 after molding shrinks or changes in temperature, it is held. 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 member 7d is embedded in the operating portion 6a of the movable body 6, even if the synthetic resin after molding is shrunk or changes in temperature, deformation or warpage of the operating portion 6a is suppressed. And the strength of the operation unit 6a can be increased.
[0053]
Next, a method of manufacturing the movable body 6 having such a configuration will be described with reference to FIG. 14. A cavity (cavity) 13 is provided between the first and second molds 11 and 12. The movable contact 7 made of a metal plate is arranged in the cavity 13.
At this time, as shown in FIG. 14, a pair of holding pins 14, 15 are arranged near the second reinforcing member 7d, and the second reinforcing member 7d is sandwiched.
[0054]
Next, for example, when synthetic resin hot water is injected into the hollow portion 13 from the gate at the tip of the operation portion 6a, the position of the second reinforcing member 7d tends to fluctuate due to the hot water pressure. The position of the second reinforcing member 7d is regulated by the pair of holding pins 14 and 15, and the reinforcing member 7d is buried at an appropriate position.
[0055]
As shown in FIG. 13, the movable body 6 thus manufactured has a pair of recesses 6e formed by the holding pins 14, 15 in the operation section 6a, and the bottom of the recess 6e It has a thin portion 6f formed between the second reinforcing member 7d.
Due to the presence of the thin portion 6f thus formed, insulation in the operation portion 6a is ensured.
[0056]
The movable contact 7 is attached to the casing 1 together with the movable body 6. When the movable contact 7 is attached, the first contact piece 7a slides on the contact portions 2a and 3a of the fixed contacts 2 and 3. Further, the second contact piece 7b slides on the contact portions 3a, 4a of the fixed contacts 3, 4, and can be brought into and away from each other.
[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 a state is established between the fixed contacts 2 and 3. When one of the first contact pieces 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 state between the fixed contacts 3 and 4 is conducted. 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 clicking is integrally provided, and a movable body in which a movable contact 7 is embedded. 6 are combined and configured.
[0059]
When the slide switch configured by combining the three parts slides 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]
In the thin slide switch thus configured, as shown in FIGS. 4 and 7, one surface of the base 1a is disposed on the printed circuit board 8, and is mounted on the printed circuit board 8. I have.
At this time, the projection 1g provided on the lower surface of the base 1a is inserted and positioned in a hole (not shown) of the printed circuit board 8, and the terminals 2b, 3b, 4b and the arm 5c of the cover 5 are It is located on a wiring pattern (not shown) on the printed circuit board 8 and soldered.
As a result, the terminals 2b, 3b, and 4b are connected to a desired electric circuit, and the arm 5c is grounded.
[0061]
15 and 16 show a slide switch according to a second embodiment of the present invention. The second embodiment will be described. The arm 5c provided on the cover 5 has an arc-shaped portion formed at the tip end thereof. It was done.
The other configuration is the same as that of the first embodiment, the same components are denoted by the same reference numerals, and description thereof is omitted here.
[0062]
Then, the slide switch thus configured is mounted on the printed circuit board 8 as shown in FIG. 16, and the arm 5c having the arc-shaped portion is soldered to the wiring pattern.
At this time, due to the arc-shaped portion, the solderability to the arm 5c is good, the amount of solder in the arm 5c increases, 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 into an L-shape varies due to the springback caused by the bending. Although the dimension between the lower end of the arm 5c and the lower end of the arm 5c cannot be obtained with high accuracy, when the arm 5c is provided with an arcuate portion as in the second embodiment, the upper end of the flat plate 5a and the lower end of the arm 5c are not provided. Dimensions can be accurately obtained.
[0064]
【The invention's effect】
A slide switch according to the present invention includes an insulating casing to which a plurality of fixed contacts are attached, a cover attached to the casing, an insulating movable body movably held by the casing and the cover, and a fixed contact. A movable contact made of a metal plate attached to the movable body so that the movable contact can be separated from the casing, a casing in which the fixed contact is embedded, a movable body in which the movable contact is embedded, and an elastic piece for clicking. The elastic piece, which is composed of a three-piece part of the cover provided integrally and elastically contacts the movable body, cooperates with the movable body when the movable body moves so that the movable body has a click feeling. It was.
With such a configuration, the number of parts is as small as three parts, the assemblability is extremely good, and a slide switch with good productivity and low cost can be provided.
[0065]
Further, the casing has a flat base in which the fixed contact is embedded, and a wall protruding from the plane of the base and extending in the moving direction of the movable body. The cover has a bent piece bent from the flat plate 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 and that elastically contacts the movable body cooperates with the movable body when the movable body moves so that the movable body has a click feeling when moving. did.
With such a configuration, the elastic piece for clicking is integrated with the cover, so that the number of parts is reduced as compared with the related art, and an inexpensive slide switch with good productivity can be provided.
In addition, since the bent piece to which the elastic piece is connected is supported by the wall surface of the wall, the root of the elastic piece is reinforced, and therefore, the bent piece is caused by the force from the elastic piece. , Is prevented from being deformed outward (escape), and a stable click can be provided for a long period of time.
[0066]
Further, a pair of bent pieces are provided at an interval, and the pair of bent pieces are supported by the wall surface of the wall portion, and the elastic piece is formed in a double-supporting type across the pair of bent pieces. Therefore, the elasticity of the elastic piece can be enhanced, and a strong clicking feeling can be provided.
[0067]
Further, since the cover is formed of a stainless steel metal plate, a click feeling can be provided, and a cover that can be soldered can be obtained.
[0068]
The cover has one or a plurality of mounting arms bent from a flat plate-like portion, and an arc-shaped portion is provided at the tip of the arm portion, and the arc-shaped portion is attached to the printed circuit board. Since soldering is enabled, 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 contacts made of a metal plate are juxtaposed in the moving direction of the movable contact, are buried and attached to the flat base of the casing, and the reinforcing plate made of a metal plate is extended between adjacent fixed contacts. Since it is embedded in the base so as to cross between the fixed contacts, even if a reinforcing plate is interposed on the extension between the contacts and the base becomes thin due to the demand for thinness, 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 the point between the contact portions, and also to increase the strength of the portion, and thus to prevent and reinforce the entire base portion. Can be.
[0070]
Further, since the reinforcing plate is formed so as to be connected to the fixed contact, the reinforcing plate can be easily formed, and a product having good productivity can be obtained.
[0071]
In addition, since the reinforcing plate is provided on both extensions between the fixed contacts, warpage of the entire base can be further prevented, and reinforcement can be performed more firmly.
[0072]
In addition, the casing has a wall protruding from the plane of the base, and the bent portion provided on the fixed contact is embedded in the wall, so that the casing can be reinforced.
[0073]
In addition, the movable body has an operation unit and a holding unit connected to the operation unit, and the movable contact is embedded and attached to the holding unit of the movable body, and is supported by one end of the holding unit. A contact piece and a second contact piece supported at the other end of the holding portion, 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 comes in contact with and separates from the fixed contact, the movable body and the movable contact are integrated, so that the assemblability is good, the cost is low, and the first and second contacts are not required. The span of the second contact piece is elongated, so that the contact state with the fixed contact is stabilized, and the life thereof can be extended.
[0074]
Also, since the reinforcing member 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 member, the holding portion of the movable body formed of a synthetic resin molded product due to the presence of the reinforcing member. With this method, even if the synthetic resin shrinks or changes in temperature after molding, deformation and warpage of the holding portion can be suppressed, and the strength of the holding portion can be increased.
[0075]
Further, since the reinforcing member is formed so as to be connected to the movable contact, the reinforcing member can be easily formed, and a product having good productivity can be obtained.
[0076]
In addition, since the reinforcing body is buried in the operation section while extending to the operation section side, even if the synthetic resin shrinks or changes in temperature after molding of the movable body, deformation or warpage of the operation section can be suppressed. In addition to this, the strength of the operation unit can be increased.
[Brief description of the drawings]
FIG. 1 is a plan view of a slide switch according to a first embodiment of the present invention.
FIG. 2 is an exploded perspective view of the slide switch according to the first embodiment of the present invention.
FIG. 3 is a sectional view of a main part showing a state inside a casing according to the first embodiment of the slide switch of the present invention.
FIG. 4 is a sectional view taken along line 4-4 in FIG. 3;
FIG. 5 is a sectional view taken along line 5-5 in FIG. 3;
FIG. 6 is a plan view of a casing according to the first embodiment of the slide switch of the present invention.
FIG. 7 is a sectional view taken along the line 7-7 in FIG. 6;
FIG. 8 is a sectional view taken along line 8-8 in FIG. 6;
FIG. 9 is a sectional view taken along line 9-9 in FIG. 6;
FIG. 10 is a plan view of a movable body according to the first embodiment of the slide switch of the present invention.
FIG. 11 is a sectional view taken along line 11-11 of FIG. 10;
FIG. 12 is a sectional view taken along line 12-12 of FIG. 10;
FIG. 13 is a sectional view taken along line 13-13 of FIG. 10;
FIG. 14 is a sectional view of a main part showing a method for manufacturing a 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 sectional view of a main part of a slide switch according to a second embodiment of the present invention, showing a mounted state thereof.
FIG. 17 is an exploded plan view of a conventional slide switch.
FIG. 18 is a plan view showing a state where a cover is removed according to a conventional slide switch.
FIG. 19 is a sectional view taken along the line 19-19 in FIG. 18;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Casing 1a Base 1b Wall 1c Notch 1d Step 1e Guide 1f Engagement 1g Projection 2 Fixed contact 2a Contact 2b Terminal 2c Bend 3 Fixed contact 3a Contact 3b Terminal 3c Bend 3d Reinforcement plate 4 Fixed contact 4a Contact 4b Terminal 4c Bend 5 Cover 5a Flat plate 5b Side wall 5c Arm 5d Locking piece 5e Front wall 5f Bending piece 5g Elastic piece 6 Movable body 6a Operating part 6b Holding part 6c Hole 6d Convex portion 6e Concave portion 6f Thin portion 7 Movable contact 7a First contact piece 7b Second contact piece 7c First reinforcement 7d Second reinforcement 8 Printed circuit board 11 First mold 12 Second mold Mold 13 Cavity part 14 Holding pin 15 Holding pin

Claims

An insulating casing to which a plurality of fixed contacts are attached; a cover attached to the casing; an insulating movable body movably held by the casing and the cover; A movable contact made of a metal plate attached to the movable body so as to be detachable, the casing having the fixed contact embedded therein, the movable body having the movable contact embedded therein, and an elastic piece for clicking The elastic piece, which is constituted by a three-point part of the cover provided integrally with the movable body and which elastically contacts the movable body, cooperates with the movable body during the movement of the movable body so that the movable body has a click feeling. A slide switch characterized by having

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

The bent pieces are provided in a pair at intervals, and the pair of bent pieces are supported by the wall surface of the wall portion, and the elastic piece straddles between the pair of bent pieces to form a double-supported type. The slide switch according to claim 2, wherein the slide switch is formed.

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

The cover has one or a plurality of attachment arms bent from the flat plate-like portion, and an arc-shaped portion is provided at a tip end 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 a substrate.

The fixed contacts made of a metal plate are juxtaposed in the moving direction of the movable contact, embedded and attached to a flat base of the casing, and a reinforcing plate made of a metal plate is provided between the adjacent fixed contacts. The slide switch according to any one of claims 1 to 5, wherein the slide switch is embedded in the base so as to extend between the fixed contacts on an extension.

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

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

9. The casing according to claim 6, wherein the casing has a wall protruding from a plane of the base, and a bent portion provided on the fixed contact is embedded in the wall. 9. Slide switch.

The movable body has an operating part and a holding part connected to the operating part, and the movable contact is embedded and attached to the holding part of the movable body, and is supported at one end side of the holding part. A first contact piece and a second contact piece supported on the other end side of the holding portion, wherein the free end sides of the first and second contact pieces are arranged so as to cross each other; The slide switch according to any one of claims 1 to 9, wherein tips of free ends of the first and second contact pieces come into contact with and separate from the fixed contact.

The slide switch according to claim 10, wherein a reinforcing member made of a metal plate is embedded in an outer peripheral portion of the holding portion so as to surround the outer peripheral portion of the holding member.

The slide switch according to claim 11, wherein the reinforcing member is formed to be connected to the movable contact.

13. The slide switch according to claim 11, wherein the reinforcement body is buried in the operation unit while extending toward the operation unit.