JP4087626B2

JP4087626B2 - Lever type switch

Info

Publication number: JP4087626B2
Application number: JP2002075248A
Authority: JP
Inventors: 伸之二宮
Original assignee: Alps Electric Co Ltd
Current assignee: Alps Alpine Co Ltd
Priority date: 2002-03-18
Filing date: 2002-03-18
Publication date: 2008-05-21
Anticipated expiration: 2022-03-18
Also published as: JP2003272483A

Description

【０００１】
【発明の属する技術分野】
本発明は携帯電話機等の電気機器に使用して好適なレバー型スイッチに関する。
【０００２】
【従来の技術】
従来のシーソー型スイッチの図面を例に説明すると、図８は従来のシーソー型スイッチの要部断面図、図９は従来のシーソー型スイッチの動作を示す断面図、図１０は図９の１０−１０線における断面図である。
【０００３】
次に、従来のシーソー型スイッチの構成を図８〜図１０に基づいて説明すると、絶縁基体５１の底壁５１ａには、金属板からなる２個の固定接点５２が取り付けられると共に、固定接点５２の接点部５２ａが底壁５１ａの一面から上方に突出して配置されている。
【０００４】
金属板が折り曲げられて形成されたカバー５３は、直方体状の箱形をなし、四角状の上面板５３ａと、上面板５３ａの４辺から下方に折り曲げられた４つの側面板５３ｂと、上面板５３ａに形成された矩形状の孔５３ｃと、側面板５３ｂからカバー５３内に突出して形成されたストッパー部５３ｄと、対向する側面板５３ｂに設けられた孔５３ｅと、側面板５３ｂの下端部に設けられた複数の爪部５３ｆとを有する。
【０００５】
そして、このカバー５３の下部には、下部の開放部を塞ぐように絶縁基体５１が配置され、爪部５３ｆが折り曲げされて、絶縁基体５１がカバー５３に取り付けられている。
【０００６】
絶縁材からなるスライド体５４は、上部に設けられた凹部５４ａと、下部に設けられた収納部５４ｂとを有し、このスライド体５４は、絶縁基体５１上に載置された状態で、カバー５３内に収納されて、横方向に移動可能となっている。
【０００７】
バネ性ある金属板が折り曲げられて形成された可動接点５５は、平板状の基部５５ａと、この基部５５ａの両側部から互いに対向して下方に折り曲げ形成されて、クリップ状をなした２個の第１，第２の接触部５５ｂ、５５ｃとを有する。
【０００８】
この可動接点５５は、基部５５ａを上方にした状態で、スライド体５４の収納部５４ｂに収納され、スライド体５４によって横方向に可動されるようになっている。
【０００９】
そして、可動接点５５は、図８に示すように、２個の第１，第２の接触部５５ｂ、５５ｃが２個の固定接点５２に接触していないＯＦＦ状態から、図９に示すように、２個の第１，第２の接触部５５ｂ、５５ｃが２個の固定接点５２に接触したＯＮ状態の時、第１，第２の接触部５５ｂ、５５ｃは、第１，第２の接触部５５ｂ、５５ｃの延びる方向に対して直交する方向に移動し、固定接点５２の接点部５２ａを挟持して、接点部５２ａに接触するようになっている。
【００１０】
即ち、可動接点５５は、第１，第２の接触部５５ｂ、５５ｃが基部５５ａよりも底壁５１ａに近い位置に配置され、固定接点５２が第１，第２の接触部５５ｂ、５５ｃに至るように延びた状態となっている。
【００１１】
絶縁材の成型品で形成された操作部材５６は、中心部に設けられた貫通孔５６ａと、この貫通孔５６ａの一方側に設けられた略扇状の第１の操作部５６ｂと、貫通孔５６ａの他方側に設けられた矩形状の第２の操作部５６ｃと、下部の中央部から下方に突出した作動部５６ｄとを有する。
【００１２】
そして、支持棒５７がカバー５３の孔５３ｅと操作部材５６の貫通孔５６ａに挿通され、支持棒５７の端部がカシメられて、操作部材５６が支持棒５７を介してカバー５３にシーソー動作可能に取り付けられている。
この時、作動部５６ｄは、スライド体５４の凹部５４ａに係合し、操作部材５６の下部には、ストッパー部５３ｄが対向すると共に、第１、第２の操作部５６ｂ、５６ｃが孔５３ｃから上方に突出した状態となっている。
【００１３】
次に、このような一回路切換の構成を有する従来のシーソー型スイッチの動作を説明すると、操作部材５６の未作動時においては、図８に示すように、２個の固定接点５２間がＯＦＦの状態で、第１の操作部５６ｂが外方に突出すると共に、第２の操作部５６ｃの下部がストッパー部５３ｄにぶつかった状態となっている。
【００１４】
この状態で、第１の操作部５６ｂを矢印Ａ１方向に押圧すると、操作部材５６は支持棒５７を支点としてシーソ動作を行い、図９，図１０に示すように、スライド体５４が作動部５６ｄによって横方向に可動されると共に、可動接点５５も横方向に可動し、その結果、可動接点５５の２個の第１，第２の接触部５５ｂ、５５ｃがそれぞれ２個の固定接点５２に接触して、固定接点５２間がＯＮ状態となる。
【００１５】
この時、第２の操作部５６ｃは、ストッパー部５３ｄから離れると共に、第２の操作部５６ｃが孔５３ｃから外方に突出した状態となる。
次に、図９の状態で、第２の操作部５６ｃを矢印Ａ２方向に押圧すると、操作部材５６は支持棒５７を支点としてシーソ動作を行い、図８に示すように、第２の操作部５６ｃがストッパー部５３ｄにぶつかって、操作部材５６の動作が停止する。
【００１６】
その間において、図８に示すように、スライド体５４が作動部５６ｄによって横方向に可動されると共に、可動接点５５も横方向に可動し、その結果、可動接点５５の２個の第１，第２の接触部５５ｂ、５５ｃは、２個の固定接点５２から離れて非接触状態となって、固定接点５２間がＯＦＦ状態となる。
このようにしてシーソー型スイッチの操作が行われる。
【００１７】
【発明が解決しようとする課題】
従来のシーソー型スイッチは、スライド体５４と可動接点５５が横方向に可動するため、横方向に大型になるという問題がある。
また、スライド体５４を必要とし、部品点数が多くなって、コスト高で、生産性が悪くなるという問題がある。
また、スイッチのＯＦＦ時、可動接点５５の第１，第２の接触部５５ｂ、５５ｃが２個の固定接点５２間に位置した状態となって、可動接点５５と固定接点５２との間が間隔が小さくなり、耐電圧が低くなるという問題がある。
また、可動接点５５は、第１，第２の接触部５５ｂ、５５ｃの延びる方向に対して直交する方向に移動して、固定接点５２を挟持するため、固定接点５２への第１，第２の接触部５５ｂ、５５ｃによる挟持がスムースにできず、第１，第２の接触部５５ｂ、５５ｃに変形を生じると問題がある。
また、操作部材５５は、支持棒５７でカバー５３に取り付けられるため、積み重ね方式による組立ができず、組立性が悪くなるという問題がある。
また、操作部材５６は、支持棒５７を中心として左右に延びる第１，第２の操作部５６ａを有するため、横方向に大型になるという問題がある。
【００１８】
そこで、本発明は横方向に小型で、安価で生産性の良好なレバー型スイッチを提供することを目的とする。
【0019】
【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、底壁を有する絶縁基体と、前記底壁の一面から上方に突出した状態で前記底壁に取り付けられた少なくとも2個の固定接点と、この固定接点に接離可能な可動接点と、この可動接点を操作するための回動動作可能な操作部材とを備え、前記可動接点は、バネ性ある金属板が折り曲げられて形成され、開放部を設けて互いに前記金属板の板面が対向して配置された第1，第2の基部と、互いに間隔を置いて配置され、前記第1，第2の基部の上部を連結する第1，第2の連結部と、この第1，第2の連結部間に位置した状態で、互いに対向するように前記第1，第2の基部から上方に突出して設けられた少なくとも2個の第1，第2の接触部とを備え、前記固定接点は、前記第1，第2の基部間に位置する前記開放部と、前記第1，第2の接触部間に位置し、回動動作可能に保持された前記操作部材の操作によって、前記可動接点が前記固定接点の延びる方向に上下動して、前記第1，第2の接触部を介して2個の前記固定接点間をＯＮ、ＯＦＦするようにしたレバー型スイッチであって、前記底壁には、上方に突出して設けられた台座部と、該台座部の上面に設けられた凹部とを有し、該凹部に前記操作部材に設けられた支承部が係合され、前記操作部材が前記支承部を支点として回動動作可能となると共に、前記操作部材は、付勢部材によって常時付勢され、前記操作部材の操作時に、前記付勢部材によって前記操作部材が元の状態に復帰するようになっており、少なくとも 2 個の前記固定接点の内、一方の前記固定接点は、前記支承部の近傍に配置されると共に、他方の前記固定接点は、前記支承部から遠い位置に配置され、前記可動接点は、前記第 1 、第 2 の連結部が、互いに間隔を置いて独立状態でそれぞれ U 字状に折り曲げられて形成されると共に、前記第 1 ，第 2 の連結部間に画成される孔内には、 U 字状の前記第 1 、第 2 の連結部にて上部が連結された前記第 1 、第 2 の基部から突出して設けられた前記第 1 、第 2 の接触部が配置され、前記第 1 、第 2 の基部が、前記第 1 、第 2 の接触部及び U 字状の前記第 1 、第 2 の連結部の頂部よりも前記庭壁に近い位置に配置されており、前記固定接点は、前記絶縁基体の前記庭壁から前記可動接点の前記第 1 、第 2 の基部間に位置する前記開放部を通って前記第 1 、第 2 の接触部に至るように延設されており、前記操作部材の回動操作に伴って、前記可動接点の第 1 、第 2 の接触部を突出させている前記第 1 、第 2 の基部間の前記開放部側から、前記第 1 、第 2 の連結部の頂部側に位置する前記第 1 、第 2 の接触部に至って、前記第 1 、第 2 の連結部の頂部間を、前記支承部の遠い位置に配置された他方の前記固定接点の先端が突き抜けるように、前記可動接点が前記固定接点の延びる方向に上下動して、前記第 1 、第 2 の接触部を介して 2 個の前記固定接点間をＯＮ、ＯＦＦする構成とした。
【００２１】
また、第2の解決手段として、前記操作部材の下部には、前記可動接点を収容するための収容部と、前記可動接点を掛け止めするための支持部が設けられ、前記可動接点は、前記収容部に収容された状態で、前記支持部に掛け止めされて前記操作部材に取り付けられた構成とした。
また、第3の解決手段として、前記操作部材の下部には肩部を有し、この肩部が前記可動接点の前記連結部の頂部を押圧するようにした構成とした。
【００２２】
また、第4の解決手段として、前記操作部材の下部には、捻りコイルバネからなる前記付勢部材を収納するための収納部が設けられ、この収納部に収納された前記捻りコイルバネの一端側が前記底壁に弾接すると共に、前記捻りコイルバネの他端側が前記操作部材に弾接した構成とした。
【００２３】
また、第5の解決手段として、高さの高い前記固定接点と、高さの低い前記固定接点という、高さの異なる２個の前記固定接点を有した構成とした。
【００２４】
また、第6の解決手段として、前記操作部材は、前記支承部の一端側から横方向に延びる扇状の操作部を有し、前記操作部材を取り付けるためのカバーが前記絶縁基体に取り付けられると共に、前記カバーに設けられた孔から前記操作部が外方に突出した構成とした。
【００２５】
また、第7の解決手段として、前記操作部材の上部が前記カバーの内面に当接して、前記操作部材が前記絶縁基体と前記カバーとで挟持されて、回動動作可能に保持された構成とした。
【００２６】
【発明の実施の形態】
本発明のレバー型スイッチの図面を説明すると、図１は本発明のレバー型スイッチに係り、絶縁基体を切り欠きした状態を示す分解斜視図、図２は本発明のレバー型スイッチに係り、カバーの上面板を取り去った状態を示す平面図、図３は本発明のレバー型スイッチに係り、操作部材の取付状態を示す要部断面図である。
【００２７】
また、図４は本発明のレバー型スイッチに係り、可動接点と付勢部材の取付状態を示す要部断面図、図５は本発明のレバー型スイッチに係り、操作部材の未操作状態を示す動作説明図、図６は本発明のレバー型スイッチに係り、操作部材を操作した状態を示す動作説明図、図７は本発明のレバー型スイッチの参考例に係り、可動接点の斜視図である。
【００２８】
次に、本発明のレバー型スイッチの構成を図１〜図６に基づいて説明すると、絶縁材の成型品からなる箱形をなした絶縁基体１は、矩形状の底壁１ａと、この底壁１ａの３つの辺から上方に延びる３つの側壁１ｂと、底壁１ａの上面から上方に突出する台座部１ｃと、この台座部１ｃの上面に設けられた円弧状の凹部１ｄと、対向する側壁１ｂの外周面に設けられた楔状の複数個の掛け止め部１ｅとを有する。
【００２９】
金属板からなる２個の固定接点２は、底壁１ａに埋設して取り付けられ、底壁１ａの一面（上面）から上方に突出して延びる接点部２ａと、側壁１ｂから外方に突出して延びる端子部２ｂとを有する。
そして、この２個の固定接点２の接点部２ａは、互いに底壁１ａから延びる高を異にし、高さの高い一方の固定接点２は、台座部１ｃの近傍に位置し、また、高さの低い他方の固定接点２は、台座部１ｃから遠い位置に配置されている。
【００３０】
金属板が折り曲げられて形成されたカバー３は、四角形状の上面板３ａと、上面板３ａの４辺から下方に折り曲げられた４つの側面板３ｂと、上面板３ａに形成された矩形状の孔３ｃと、対向する側面板３ｂの下端部から横方向に突出する係止片３ｄとを有する。
【００３１】
そして、このカバー３は、上面板３ａで絶縁基体１の上方開口部を覆うように、絶縁基体１の上方から被せながら、側面板３ｂを側壁１ｂの外周面に沿って下方に押し込むと、係止片３ｄが楔状の掛け止め部１ｅを乗り越えて、係止片３ｄが掛け止め部１ｅの下端部に掛け止めされて、カバー３が絶縁基体１に取り付けられる。
このカバー３が取り付けられた際、１つの側面板３ｂが絶縁基体１の側壁１ｂの存在しない箇所を覆うようになっている。
【００３２】
絶縁材の成型品で形成された操作部材４は、本体部４ａと、本体部４ａの下部に設けられた凹部からなる収容部４ｂと、この収容部４ａの天井部に相当する一対の肩部４ｃと、この肩部４ｃの位置に設けられた係止部４ｄと、収容部４ｂと並設された状態で、本体部４ａの下部に設けられた凹部からなる収納部４ｅと、収容部４ｂと収納部４ｅ間に位置した状態で、本体部４ａの下部に設けられた半円柱状の支承部４ｆと、支承部４ｆの一端側から横方向に延びた状態で、本体部４ａの上面に形成された扇状の操作部４ｇと、収容部４ｂの下部に設けられた支持部４ｈとを有する。
【００３３】
そして、操作部材４の支承部４ｆが絶縁基体１の凹部１ｄ内に係合すると共に、操作部材４の上面がカバー３の上面板３ａの内面に当接して、操作部材４は、絶縁基体１とカバー３間に挟持されて、回動動作可能に保持されている。
この時、支承部４ｆの近傍には、高さの高い固定接点２が配置されると共に、高さの低い固定接点２は、支承部４ｆから遠い位置に配置された状態となっている。
【００３４】
更に、操作部材４の収容部４ｂ内の中央部には、２個の固定接点２が突入した状態となっている。
バネ性ある金属板がＵ字状に折り曲げられて形成された可動接点５は、開放部５ａを設けて互いに対向して配置された帯状の第１，第２の基部５ｂ、５ｃと、互いに間隔を置いて配置され、第１，第２の基部５ｂ、５ｃを連結するＵ字状の第１，第２の連結部５ｄ、５ｅと、この第１，第２の連結部５ｄ、５ｅ間に設けられた孔５ｆと、第１，第２の連結部５ｄ、５ｅ間の孔５ｆ内に位置した状態で、互いに対向するように第１，第２の基部５ｂ、５ｃから突出して設けられたクリップ状の少なくとも２個の第１，第２の接触部５ｇ、５ｈとを有する。
【００３５】
そして、この可動接点５は、第１，第２の接触部５ｇ、５ｈ側を上方にして、操作部材４の横方向から収容部４ｂに収容される。すると、第１，第２の連結部５ｄ、５ｅの頂部が操作部材４の肩部４ｃに対向すると共に、第１，第２の基部５ｂ、５ｃの下端部が支持部４ｈに掛け止めされて、可動接点５が操作部材４に取り付けられる。
【００３６】
また、可動接点５が操作部材４に取り付けられた際、第１，第２の基部５ｂ、５ｃが第１，第２の接触部５ｇ、５ｈよりも底壁１ａに近い位置に配置されると共に、２個の固定接点２は、第１，第２の基部５ｂ、５ｃ間に位置する開放部５ａを通って第１，第２の接触部５ｇ、５ｈに至るように延びている。
【００３７】
そして、操作部材４が支承部４ｆを支点として回動動作した際、可動接点５は、操作部材４に掛け止めされた状態で、肩部４ｃによって第１，第２の連結部５ｄ、５ｅの頂部が押されて、可動接点５は操作部材４と共に回転動作し、その結果、第１，第２の接触部５ｇ、５ｈは、固定接点２の接点部２ａの延びる方向に上下動して、２個の第１，第２の接触部５ｇ、５ｈのそれぞれが２個の固定接点２の接点部２ａに接離して、２個の固定接点２間をＯＮ状態、或いはＯＦＦ状態にする。
【００３８】
この実施例では、２個の固定接点２間がＯＦＦ時、２個の第１，第２の接触部５ｇ、５ｈのそれぞれが２個の固定接点２から離れた状態となっていて、ＯＮ時に、２個の第１，第２の接触部５ｇ、５ｈのそれぞれが２個の固定接点２に接触するようになっているが、２個の内の一方の第１，第２の接触部５ｇ、５ｈがＯＦＦ時とＯＮ時に、２個の内の一方の固定接点２と常時接触し、２個の内の他方の第１，第２の接触部５ｇ、５ｈが２個の内の他方の固定接点２に接離するようにして、ＯＦＦ状態とＯＮ状態を得るようにしても良い。
【００３９】
捻りコイルバネからなる付勢部材６は、巻回部６ａと、巻回部６ａの両端部に設けられた折り曲げ端部６ｂ、６ｃとを有し、この付勢部材６は、特に、図４に示すように、１つの側壁１ｂと操作部材４の収納部４ｅで囲まれた箇所に収納されて、箱形の絶縁基体１内に配置されている。
【００４０】
そして、この付勢部材６が取り付けられた際、一端部６ｂが底壁１ａの上面に弾接すると共に、他端部６ｃが操作部４ｇの下部に弾接して、操作部４ｇが上面板３ａの孔３ｃから外方に突出した状態で、本体部４ａの上面が上面板３ａの内面にぶつかって、操作部４ｇの上方への移動が停止し、また、付勢部材６によって、操作部材４が常時付勢されて、自動復帰するようになっている。
【００４１】
次に、このような一回路切換の構成を有する本発明のレバー型スイッチの動作を説明すると、操作部材４の未作動時においては、図４，図５に示すように、２個の第１，第２の接触部５ｇ、５ｈが上方に位置して、２個の固定接点２間がＯＦＦの状態となっている。
【００４２】
この状態で、操作部４ｇを矢印Ａ１方向に押圧すると、操作部材４は、付勢部材６に抗して、支承部４ｆを支点として回動動作を行い、図６に示すように、可動接点５は操作部材４と共に回動して、２個の第１，第２の接触部５ｇ、５ｈが固定接点２の延びる方向、即ち、下方に移動して、その結果、可動接点５の２個の第１，第２の接触部５ｇ、５ｈがそれぞれ２個の固定接点２に接触して、固定接点２間がＯＮ状態となる。
【００４３】
次に、図６の状態で、操作部４ｇの矢印Ａ１方向への押圧を解除すると、操作部材４は、付勢部材６によって、図４，図５に示すように、押圧前の状態に自動的に復帰する。
その間において、可動接点５は操作部材４と共に回動して、２個の第１，第２の接触部５ｇ、５ｈが固定接点２の延びる方向、即ち、上方に移動して、その結果、可動接点５の２個の第１，第２の接触部５ｇ、５ｈがそれぞれ２個の固定接点２から離れて非接触状態となって、固定接点２間がＯＦＦ状態となる。
このようにしてレバー型スイッチの操作が行われる。
【００４４】
図７は本発明のレバー型スイッチの可動接点の参考例を示し、この参考例を図７に基づいて説明すると、Ｕ字状に折り曲げられた可動接点５は、開放部５ａを設けて互いに対向して配置された帯状の第１，第２の基部５ｂ、５ｃと、互いに間隔を置いて配置され、第１，第２の基部５ｂ、５ｃの下部を連結する第１，第２の連結部５ｄ、５ｅと、この第１，第２の連結部５ｄ、５ｅ間に位置した状態で、互いに対向するように第１，第２の基部５ｂ、５ｃの上部から突出して設けられたクリップ状の少なくとも２個の第１，第２の接触部５ｇ、５ｈとを有する。
【００４５】
そして、２個の固定接点２は、第１，第２の基部５ｂ、５ｃ間に位置する開放部５ａを通って第１，第２の接触部５ｇ、５ｈに至るように延びている。
その他の構成は、前記実施例と同様であり、ここではその説明を省略する。
【００４６】
【発明の効果】
本発明のレバー型スイッチは、底壁を有する絶縁基体と、底壁の一面から上方に突出した状態で底壁に取り付けられた少なくとも２個の固定接点と、この固定接点に接離可能な可動接点と、この可動接点を操作するための回動動作可能な操作部材とを備え、可動接点は、バネ性ある金属板が折り曲げられて形成され、開放部を設けて互いに対向して配置された第１，第２の基部と、互いに間隔を置いて配置され、第１，第２の基部を連結する第１，第２の連結部と、この第１，第２の連結部間に位置した状態で、互いに対向するように第１，第２の基部から突出して設けられた少なくとも２個の第１，第２の接触部とを備え、固定接点は、第１，第２の基部間に位置する開放部と、第１，第２の接触部間に位置し、回動動作可能に保持された操作部材の操作によって、可動接点が固定接点の延びる方向に上下動して、第１，第２の接触部を介して２個の固定接点間をＯＮ、ＯＦＦするようにした構成とした。
即ち、可動接点の第１，第２の接触部が固定接点の延びる方向に上下動するため、従来に比して横方向に小型化できると共に、第１，第２の接触部が固定接点から上方に逃げるため、２個の固定接点間に接触部が逃げる従来に比して、耐電圧を大きくすることができる。
また、従来のスライド体が不要となって、部品点数が少なく、安価で、生産性が良く、且つ、小型のものが提供できる。
また、第１，第２の接触部で固定接点を挟持して接触するため、その接触が安定し、接触抵抗の少ないものが得られる。
また、可動接点の第１，第２の接触部は、第１，第２の接触部の延びる方向で、固定接点に接触して挟持するため、従来に比して、第１，第２の接触部の変形の少ないものが得られる。
【００４７】
また、可動接点は、第１，第２の連結部がＵ字状に折り曲げられて形成されると共に、第１，第２の連結部間に設けられた孔内には、第１，第２の接触部が配置され、第１，第２の基部が第１，第２の接触部よりも底壁に近い位置に配置されて、固定接点が前記第１，第２の基部の開放部を通って第１，第２の接触部に至るようにしたため、両側に位置する連結部によって接触部が保護され、可動接点の組み立て時における接触部の変形を少なくできる。
【００４８】
また、操作部材の下部には、可動接点を収容するための収容部と、可動接点を掛け止めするための支持部が設けられ、可動接点は、収容部に収容された状態で、支持部に掛け止めされて操作部材に取り付けられたため、可動接点の取付が簡素化できて、組立性の良好なものが得られる。
また、このような構成によって、可動接点の取付が安定し、耐振性の良好な可動接点の取付ができる。
【００４９】
また、操作部材の下部には肩部を有し、この肩部が可動接点の連結部の頂部を押圧するようにしたため、操作部材の動きに追従して、可動接点が確実に可動するものが得られる。
【００５０】
また、操作部材は、付勢部材によって常時付勢され、操作部材の操作時、付勢部材によって操作部材が元の状態の復帰するようにしたため、操作性の簡単なものが得られる。
【００５１】
また、操作部材の下部には、捻りコイルバネからなる付勢部材を収納するための収納部が設けられ、この収納部に収納された捻りコイルバネの一端側が底壁に弾接すると共に、捻りコイルバネの他端側が操作部材に弾接したため、構成の簡単な操作部材の復帰構造が提供できる。
【００５２】
また、高さの異なる２個の固定接点を有したため、接触部の移動量の大きな側に高さの低い固定接点を配置すれば、高さ方向を抑えることができて、小型のものが得られる。
【００５３】
また、底壁には、上方に突出して設けられた台座部と、この台座部の上面に設けられた凹部とを有し、操作部材の下部に設けられた支承部が凹部に係合され、操作部材が支承部を支点として回動動作可能としたため、操作部材の支承構造が簡単で、従来の支持棒が不要となって、安価で、生産性の良好なものが得られる。
【００５４】
また、操作部材は、支承部の一端側から横方向に延びる扇状の操作部を有し、操作部材を取り付けるためのカバーが絶縁基体に取り付けられると共に、カバーに設けられた孔から操作部が外方に突出したため、操作部が１個で済み、従来に比して、横方向に一層、小型化を図ることができる。
【００５５】
また、操作部材の上部がカバーの内面に当接して、操作部材が絶縁基体とカバーとで挟持されて、シーソー動作可能に保持されたため、操作部材の保持が簡単で、安価で、生産性の良好なものが得られる。
【００５６】
また、高さの高い固定接点は、支承部の近傍に配置されれると共に、高さの低い固定接点は、支承部から遠い位置に配置されたため、接触部の移動量の大きな側に高さの低い固定接点を配置できて、高さ方向を抑えることができて、小型のものが得られる。
【図面の簡単な説明】
【図１】本発明のレバー型スイッチに係り、絶縁基体を切り欠きした状態を示す分解斜視図。
【図２】本発明のレバー型スイッチに係り、カバーの上面板を取り去った状態を示す平面図。
【図３】本発明のレバー型スイッチに係り、操作部材の取付状態を示す要部断面図。
【図４】本発明のレバー型スイッチに係り、可動接点と付勢部材の取付状態を示す要部断面図。
【図５】本発明のレバー型スイッチに係り、操作部材の未操作状態を示す動作説明図。
【図６】本発明のレバー型スイッチに係り、操作部材を操作した状態を示す動作説明図。
【図7】本発明のレバー型スイッチの参考例に係り、可動接点の斜視図。
【図８】従来のシーソー型スイッチの要部断面図。
【図９】従来のシーソー型スイッチの動作を示す断面図。
【図１０】図９の１０−１０線における断面図。
【符号の説明】
１絶縁基体
１ａ底壁
１ｂ側壁
１ｃ台座部
１ｄ凹部
１ｅ掛け止め部
２固定接点
２ａ接点部
２ｂ端子部
３カバー
３ａ上面板
３ｂ側面板
３ｃ孔
３ｄ係止片
４操作部材
４ａ本体部
４ｂ収容部
４ｃ肩部
４ｄ係止部
４ｅ収納部
４ｆ支承部
４ｇ操作部
５可動接点
５ａ開放部
５ｂ第１の基部
５ｃ第２の基部
５ｄ第１の連結部
５ｅ第２の連結部
５ｆ孔
５ｇ第１の接触部
５ｈ第２の接触部
５ｊ係止片
６付勢部材
６ａ巻回部
６ｂ端部
６ｃ端部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lever-type switch suitable for use in an electric device such as a mobile phone.
[0002]
[Prior art]
FIG. 8 is a cross-sectional view of a main part of a conventional seesaw switch, FIG. 9 is a sectional view showing the operation of the conventional seesaw switch, and FIG. 10 is a cross-sectional view of FIG. It is sectional drawing in 10 lines.
[0003]
Next, the configuration of a conventional seesaw type switch will be described with reference to FIGS. 8 to 10. Two fixed contacts 52 made of a metal plate are attached to the bottom wall 51 a of the insulating base 51, and the fixed contacts 52. The contact portion 52a is disposed so as to protrude upward from one surface of the bottom wall 51a.
[0004]
The cover 53 formed by bending a metal plate has a rectangular parallelepiped box shape, a rectangular upper surface plate 53a, four side plates 53b bent downward from four sides of the upper surface plate 53a, and an upper surface plate. A rectangular hole 53c formed in 53a, a stopper portion 53d formed to protrude from the side plate 53b into the cover 53, a hole 53e provided in the opposite side plate 53b, and a lower end portion of the side plate 53b A plurality of claw portions 53f provided.
[0005]
The insulating base 51 is disposed at the lower part of the cover 53 so as to close the opening of the lower part, the claw part 53f is bent, and the insulating base 51 is attached to the cover 53.
[0006]
The slide body 54 made of an insulating material has a recess 54 a provided in the upper part and a storage part 54 b provided in the lower part. The slide body 54 is placed on the insulating base 51 and covers the cover. It is accommodated in 53 and can move in the horizontal direction.
[0007]
A movable contact 55 formed by bending a metal plate having a spring property is formed of a plate-like base portion 55a and two clip-like shapes formed by bending downward from both sides of the base portion 55a. It has 1st, 2nd contact part 55b, 55c.
[0008]
The movable contact 55 is accommodated in the accommodating portion 54b of the slide body 54 with the base 55a facing upward, and is movable in the lateral direction by the slide body 54.
[0009]
Then, as shown in FIG. 8, the movable contact 55 is in an OFF state where the two first and second contact portions 55b and 55c are not in contact with the two fixed contacts 52, as shown in FIG. When the two first and second contact portions 55b and 55c are in the ON state in which they are in contact with the two fixed contacts 52, the first and second contact portions 55b and 55c are the first and second contact portions. It moves in a direction orthogonal to the direction in which the portions 55b and 55c extend, sandwiches the contact portion 52a of the fixed contact 52, and comes into contact with the contact portion 52a.
[0010]
That is, in the movable contact 55, the first and second contact portions 55b and 55c are disposed closer to the bottom wall 51a than the base portion 55a, and the fixed contact 52 reaches the first and second contact portions 55b and 55c. It is in the extended state.
[0011]
The operation member 56 formed of a molded product of an insulating material includes a through hole 56a provided in the center portion, a substantially fan-shaped first operation portion 56b provided on one side of the through hole 56a, and the through hole 56a. The second operation portion 56c having a rectangular shape provided on the other side, and the operation portion 56d protruding downward from the central portion of the lower portion.
[0012]
Then, the support bar 57 is inserted into the hole 53e of the cover 53 and the through hole 56a of the operation member 56, the end of the support bar 57 is crimped, and the operation member 56 can perform a seesaw operation on the cover 53 via the support bar 57. Is attached.
At this time, the operating portion 56d is engaged with the concave portion 54a of the slide body 54, the stopper portion 53d is opposed to the lower portion of the operating member 56, and the first and second operating portions 56b and 56c are inserted from the holes 53c. It is in a state of protruding upward.
[0013]
Next, the operation of a conventional seesaw type switch having such a one-circuit switching configuration will be described. When the operation member 56 is not operated, the distance between the two fixed contacts 52 is OFF as shown in FIG. In this state, the first operation portion 56b protrudes outward, and the lower portion of the second operation portion 56c hits the stopper portion 53d.
[0014]
In this state, when the first operating portion 56b is pressed in the direction of the arrow A1, the operating member 56 performs a seesaw operation with the support rod 57 as a fulcrum, and the slide body 54 is actuated portion 56d as shown in FIGS. As a result, the movable contact 55 is also moved in the horizontal direction. As a result, the two first and second contact portions 55b and 55c of the movable contact 55 are in contact with the two fixed contacts 52, respectively. Thus, the fixed contact 52 is turned on.
[0015]
At this time, the second operation portion 56c is separated from the stopper portion 53d, and the second operation portion 56c protrudes outward from the hole 53c.
Next, when the second operating portion 56c is pressed in the direction of arrow A2 in the state of FIG. 9, the operating member 56 performs a seesaw operation with the support rod 57 as a fulcrum, and as shown in FIG. 56c hits the stopper portion 53d, and the operation of the operation member 56 stops.
[0016]
In the meantime, as shown in FIG. 8, the slide body 54 is moved in the lateral direction by the operating portion 56d, and the movable contact 55 is also moved in the lateral direction. As a result, the two first and first movable contacts 55 are moved. The two contact portions 55b and 55c are separated from the two fixed contacts 52 and are in a non-contact state, and the space between the fixed contacts 52 is OFF.
In this way, the seesaw type switch is operated.
[0017]
[Problems to be solved by the invention]
The conventional seesaw type switch has a problem in that the slide body 54 and the movable contact 55 move in the horizontal direction, resulting in a large size in the horizontal direction.
Further, there is a problem that the slide body 54 is required, the number of parts is increased, the cost is high, and the productivity is deteriorated.
When the switch is turned off, the first and second contact portions 55b and 55c of the movable contact 55 are positioned between the two fixed contacts 52, and the distance between the movable contact 55 and the fixed contact 52 is set. Has a problem that the withstand voltage decreases and the withstand voltage decreases.
The movable contact 55 moves in a direction orthogonal to the direction in which the first and second contact portions 55b and 55c extend to sandwich the fixed contact 52. There is a problem if the first and second contact portions 55b and 55c are deformed without being smoothly held by the contact portions 55b and 55c.
Further, since the operation member 55 is attached to the cover 53 by the support rod 57, there is a problem that the assembly by the stacking method cannot be performed and the assemblability is deteriorated.
Moreover, since the operation member 56 has the 1st, 2nd operation part 56a extended right and left centering on the support rod 57, there exists a problem that it becomes large in a horizontal direction.
[0018]
Accordingly, an object of the present invention is to provide a lever type switch that is small in the lateral direction, inexpensive, and has good productivity.
[0019]
[Means for Solving the Problems]
  As a first means for solving the above problems, an insulating base having a bottom wall, at least two fixed contacts attached to the bottom wall in a state of protruding upward from one surface of the bottom wall, and A movable contact that can be moved toward and away from the fixed contact; and an operation member that can be rotated to operate the movable contact. The movable contact is formed by bending a metal plate having a spring property, and has an open portion. Provide each otherThe plate surface of the metal plateThe first and second bases arranged opposite to each other and spaced apart from each other, the first and second basesTop ofFrom the first and second bases so as to face each other in a state of being positioned between the first and second connection parts and the first and second connection partsUpwardAnd at least two first and second contact portions provided so as to protrude, and the fixed contact is located between the first and second base portions, and the first and second contact portions. The movable contact moves up and down in the direction in which the fixed contact extends by the operation of the operation member that is positioned between the contact portions and is held so as to be capable of rotating, via the first and second contact portions. ON / OFF between the two fixed contactsThe lever-type switch has a pedestal portion protruding upward and a concave portion provided on an upper surface of the pedestal portion, and a support provided on the operation member in the concave portion. The operation member can be rotated about the support portion as a fulcrum, and the operation member is always urged by the urging member, and when the operation member is operated, The operating member is adapted to return to its original state, at least 2 Of the fixed contacts, one of the fixed contacts is disposed in the vicinity of the support portion, the other fixed contact is disposed at a position far from the support portion, and the movable contact is the first contact. 1 The second 2 Are connected to each other in an independent state at intervals. U And is formed by being bent into a letter shape. 1 , Number 2 In the hole defined between the connecting parts, U The letter-shaped first 1 The second 2 The upper part is connected at the connecting part. 1 The second 2 Projecting from the base of the first 1 The second 2 The contact portion is disposed, 1 The second 2 The base of the first 1 The second 2 Contact part and U The letter-shaped first 1 The second 2 The stationary contact is disposed closer to the garden wall than the top of the connecting portion, and the fixed contact extends from the garden wall of the insulating base to the movable contact. 1 The second 2 Through the opening located between the bases of the 1 The second 2 To the contact portion of the movable contact, and in accordance with the turning operation of the operation member, 1 The second 2 Projecting the contact portion of the first 1 The second 2 From the open part side between the base parts of the 1 The second 2 The first part located on the top side of the connecting part 1 The second 2 To the contact portion of the 1 The second 2 The movable contact moves up and down in the extending direction of the fixed contact so that the tip of the other fixed contact disposed at a position far from the support portion penetrates between the tops of the connecting portions of 1 The second 2 Through the contact 2 ON / OFF between the fixed contactsThe configuration.
[0021]
The second2As a means for solving this problem, a lower portion of the operation member is provided with a housing portion for housing the movable contact and a support portion for latching the movable contact, and the movable contact is housed in the housing portion. In such a state, it is configured to be hooked on the support portion and attached to the operation member.
The secondThreeAs a means for solving this problem, the operation member has a shoulder at the bottom, and the shoulder presses the top of the connecting portion of the movable contact.
[0022]
  MaNo.FourAs a means for solving this problem, a storage portion for storing the biasing member made of a torsion coil spring is provided at a lower portion of the operation member, and one end side of the torsion coil spring stored in the storage portion is elasticated to the bottom wall. The other end side of the torsion coil spring is in elastic contact with the operation member.
[0023]
  The secondFiveAs a solution toThe fixed contact point having a high height and the fixed contact point having a low height,A configuration having two fixed contacts with different heights.
[0024]
  The second6As a means for solving the problem, the operation member has a fan-like operation portion extending in a lateral direction from one end side of the support portion, and a cover for attaching the operation member is attached to the insulating base and provided on the cover. The operation part protrudes outward from the formed hole.
[0025]
  The second7As a solution to this, the upper part of the operation member is in contact with the inner surface of the cover, and the operation member is sandwiched between the insulating base and the cover and held so as to be rotatable..
[0026]
DETAILED DESCRIPTION OF THE INVENTION
The lever type switch of the present invention will be described. FIG. 1 relates to the lever type switch of the present invention, and is an exploded perspective view showing a state in which the insulating base is cut away. FIG. 2 relates to the lever type switch of the present invention and covers FIG. 3 is a cross-sectional view of an essential part showing a mounting state of an operation member according to the lever type switch of the present invention.
[0027]
  FIG. 4 relates to the lever-type switch of the present invention, and is a cross-sectional view of the main part showing the mounting state of the movable contact and the biasing member. FIG. FIG. 6 relates to the lever type switch of the present invention, FIG. 6 illustrates the operation of the operating member, and FIG. 7 illustrates the lever type switch of the present invention.referenceIt is a perspective view of a movable contact in connection with an example.
[0028]
Next, the structure of the lever-type switch of the present invention will be described with reference to FIGS. 1 to 6. A box-shaped insulating base 1 made of a molded product of an insulating material includes a rectangular bottom wall 1a and a bottom wall. The three side walls 1b extending upward from the three sides of the wall 1a, the pedestal portion 1c protruding upward from the upper surface of the bottom wall 1a, and the arc-shaped recess 1d provided on the upper surface of the pedestal portion 1c are opposed to each other. And a plurality of wedge-shaped latching portions 1e provided on the outer peripheral surface of the side wall 1b.
[0029]
The two fixed contacts 2 made of a metal plate are embedded and attached to the bottom wall 1a, and extend to project outward from one side (upper surface) of the bottom wall 1a and extend outward from the side wall 1b. Terminal portion 2b.
The contact portions 2a of the two fixed contacts 2 have different heights extending from the bottom wall 1a, and one of the high fixed contacts 2 is located in the vicinity of the pedestal portion 1c and has a height. The other fixed contact 2 having a low height is disposed at a position far from the pedestal portion 1c.
[0030]
The cover 3 formed by bending a metal plate has a rectangular upper surface plate 3a, four side plates 3b bent downward from four sides of the upper surface plate 3a, and a rectangular shape formed on the upper surface plate 3a. It has the hole 3c and the locking piece 3d which protrudes from the lower end part of the opposing side surface board 3b to a horizontal direction.
[0031]
Then, when the side plate 3b is pushed downward along the outer peripheral surface of the side wall 1b while covering the upper side of the insulating base 1 so that the upper surface plate 3a covers the upper opening of the insulating base 1, the cover 3 is engaged. The stop piece 3d gets over the wedge-shaped stop portion 1e, the stop piece 3d is hooked on the lower end portion of the stop portion 1e, and the cover 3 is attached to the insulating base 1.
When the cover 3 is attached, one side plate 3b covers a portion where the side wall 1b of the insulating base 1 does not exist.
[0032]
The operation member 4 formed of a molded product of an insulating material includes a main body portion 4a, a housing portion 4b formed of a recess provided in a lower portion of the main body portion 4a, and a pair of shoulder portions corresponding to the ceiling portion of the housing portion 4a. 4c, a locking part 4d provided at the position of the shoulder 4c, a storage part 4e formed of a recess provided in the lower part of the main body part 4a in a state of being arranged in parallel with the storage part 4b, and a storage part 4b And a semi-cylindrical support portion 4f provided at the lower portion of the main body portion 4a in a state of being positioned between the storage portion 4e and the upper surface of the main body portion 4a in a state of extending laterally from one end side of the support portion 4f. It has the formed fan-shaped operation part 4g and the support part 4h provided in the lower part of the accommodating part 4b.
[0033]
The support member 4f of the operation member 4 engages in the recess 1d of the insulating base 1, and the upper surface of the operation member 4 contacts the inner surface of the upper surface plate 3a of the cover 3. And the cover 3 are held so as to be capable of rotating.
At this time, the fixed contact 2 having a high height is disposed in the vicinity of the support portion 4f, and the fixed contact 2 having a low height is disposed at a position far from the support portion 4f.
[0034]
Furthermore, the two fixed contacts 2 have entered into the central portion in the accommodating portion 4 b of the operation member 4.
The movable contact 5 formed by bending a metal plate having a spring shape into a U-shape is spaced apart from the first and second strip-shaped bases 5b and 5c which are arranged opposite to each other by providing an open part 5a. The U-shaped first and second connecting portions 5d and 5e that connect the first and second base portions 5b and 5c are disposed between the first and second connecting portions 5d and 5e. In a state of being located in the hole 5f between the provided hole 5f and the first and second connecting portions 5d and 5e, the first and second base portions 5b and 5c are provided so as to face each other. It has at least two clip-shaped first and second contact portions 5g and 5h.
[0035]
  The movable contact 5 is accommodated in the accommodating portion 4b from the lateral direction of the operation member 4 with the first and second contact portions 5g and 5h facing upward. Then, the top portions of the first and second connecting portions 5d and 5e are opposed to the shoulder portion 4c of the operation member 4, and the lower ends of the first and second base portions 5b and 5c aresupportThe movable contact 5 is attached to the operation member 4 by being latched by the portion 4h.
[0036]
Further, when the movable contact 5 is attached to the operation member 4, the first and second base portions 5b and 5c are disposed at a position closer to the bottom wall 1a than the first and second contact portions 5g and 5h. The two fixed contacts 2 extend so as to reach the first and second contact portions 5g and 5h through the open portion 5a located between the first and second base portions 5b and 5c.
[0037]
Then, when the operation member 4 rotates with the support portion 4f as a fulcrum, the movable contact 5 is hooked on the operation member 4 and the shoulder portions 4c of the first and second connecting portions 5d and 5e. When the top portion is pushed, the movable contact 5 rotates together with the operation member 4, and as a result, the first and second contact portions 5g and 5h move up and down in the extending direction of the contact portion 2a of the fixed contact 2, Each of the two first and second contact portions 5g and 5h contacts and separates from the contact portion 2a of the two fixed contacts 2, and the two fixed contacts 2 are turned on or off.
[0038]
In this embodiment, when the space between the two fixed contacts 2 is OFF, each of the two first and second contact portions 5g, 5h is separated from the two fixed contacts 2, and when it is ON, Each of the two first and second contact portions 5g and 5h comes into contact with the two fixed contacts 2, but one of the two first and second contact portions 5g. When 5h is OFF and ON, one of the two fixed contacts 2 is always in contact, and the other of the two first and second contact portions 5g and 5h is the other of the two. You may make it obtain an OFF state and an ON state by contacting / separating to the fixed contact 2.
[0039]
The biasing member 6 made of a torsion coil spring has a winding portion 6a and bent end portions 6b and 6c provided at both ends of the winding portion 6a. As shown, it is housed in a location surrounded by one side wall 1 b and the housing portion 4 e of the operation member 4 and is disposed in the box-shaped insulating substrate 1.
[0040]
When the urging member 6 is attached, the one end 6b is elastically contacted with the upper surface of the bottom wall 1a, the other end 6c is elastically contacted with the lower portion of the operating portion 4g, and the operating portion 4g is With the upper surface of the main body portion 4a colliding with the inner surface of the upper surface plate 3a in a state of protruding outward from the hole 3c, the upward movement of the operation portion 4g is stopped, and the operation member 4 is moved by the biasing member 6. It is always energized and automatically returns.
[0041]
Next, the operation of the lever type switch of the present invention having such a one-circuit switching configuration will be described. When the operation member 4 is not operated, as shown in FIGS. The second contact portions 5g and 5h are positioned above, and the space between the two fixed contacts 2 is OFF.
[0042]
In this state, when the operation portion 4g is pressed in the direction of the arrow A1, the operation member 4 rotates with the support portion 4f as a fulcrum against the urging member 6, and as shown in FIG. 5 rotates together with the operation member 4, and the two first and second contact portions 5g and 5h move in the direction in which the fixed contact 2 extends, i.e., downward. The first and second contact portions 5g and 5h come into contact with the two fixed contacts 2, respectively, and the space between the fixed contacts 2 is turned on.
[0043]
Next, when the pressing of the operation portion 4g in the arrow A1 direction is released in the state of FIG. 6, the operation member 4 is automatically returned to the state before the pressing by the biasing member 6 as shown in FIGS. Will return.
In the meantime, the movable contact 5 rotates together with the operation member 4, and the two first and second contact portions 5g and 5h move upward in the direction in which the fixed contact 2 extends, that is, move upward. The two first and second contact portions 5g and 5h of the contact 5 are separated from the two fixed contacts 2 to be in a non-contact state, and the space between the fixed contacts 2 is turned off.
In this way, the lever type switch is operated.
[0044]
  FIG. 7 shows a lever type switch according to the present invention.Reference for movable contactsHere is an examplereferenceAn example will be described with reference to FIG. 7. The movable contact 5 bent in a U-shape is provided with strip-shaped first and second base portions 5 b and 5 c provided with an open portion 5 a and opposed to each other. The first and second connecting portions 5d and 5e, which are arranged at intervals and connect the lower portions of the first and second base portions 5b and 5c, are positioned between the first and second connecting portions 5d and 5e. In this state, at least two clip-like first and second contact portions 5g and 5h are provided so as to protrude from the upper portions of the first and second base portions 5b and 5c so as to face each other.
[0045]
The two fixed contacts 2 extend so as to reach the first and second contact portions 5g and 5h through the open portion 5a located between the first and second base portions 5b and 5c.
Other configurations are the same as those in the above embodiment, and the description thereof is omitted here.
[0046]
【The invention's effect】
The lever-type switch of the present invention includes an insulating base having a bottom wall, at least two fixed contacts attached to the bottom wall in a state of protruding upward from one surface of the bottom wall, and a movable contactable and separable to the fixed contacts. A contact point and a rotatable operation member for operating the movable contact, and the movable contact is formed by bending a metal plate having a spring property, and is disposed opposite to each other by providing an opening. The first and second bases are disposed at a distance from each other, and are positioned between the first and second connection parts and the first and second connection parts that connect the first and second base parts. And at least two first and second contact portions provided so as to protrude from the first and second base portions so as to face each other, and the fixed contact is between the first and second base portions. Positioned between the open part and the first and second contact parts, and held so as to be able to rotate. By the operation of the work member, it moves up and down in the direction movable contact of extension of the fixed contacts, first, second contact portions ON between two fixed contacts through, has a structure which is adapted turned OFF.
That is, since the first and second contact portions of the movable contact move up and down in the direction in which the fixed contact extends, it is possible to reduce the size in the lateral direction as compared with the prior art, and the first and second contact portions are separated from the fixed contact. Since it escapes upward, the withstand voltage can be increased as compared with the conventional case where the contact portion escapes between the two fixed contacts.
In addition, the conventional slide body is unnecessary, and the number of parts is small, the cost is low, the productivity is high, and the small size can be provided.
Further, since the first and second contact portions sandwich and contact the fixed contact, the contact is stable and a contact resistance is reduced.
Further, since the first and second contact portions of the movable contact are in contact with the fixed contact in the extending direction of the first and second contact portions, the first and second contact portions are compared with the conventional one. A thing with little deformation | transformation of a contact part is obtained.
[0047]
The movable contact is formed by bending the first and second connecting portions into a U shape, and the first and second connecting portions are formed in the holes provided between the first and second connecting portions. The first and second base portions are disposed closer to the bottom wall than the first and second contact portions, and the fixed contact points the open portions of the first and second base portions. Since the first and second contact portions are passed through, the contact portions are protected by the connecting portions located on both sides, and deformation of the contact portions during assembly of the movable contact can be reduced.
[0048]
In addition, a housing part for housing the movable contact and a support part for latching the movable contact are provided at the lower part of the operation member, and the movable contact is accommodated in the housing part while being accommodated in the housing part. Since it is hooked and attached to the operation member, the attachment of the movable contact can be simplified, and a good assembly property can be obtained.
In addition, with such a configuration, the movable contact can be stably mounted and the movable contact having good vibration resistance can be mounted.
[0049]
In addition, since the lower part of the operation member has a shoulder, and this shoulder presses the top of the connecting part of the movable contact, the movable contact can move reliably following the movement of the operation member. can get.
[0050]
In addition, since the operation member is always urged by the urging member and the operation member is returned to the original state by the urging member when the operation member is operated, a simple operability can be obtained.
[0051]
In addition, a storage portion for storing a biasing member made of a torsion coil spring is provided at the lower part of the operation member, and one end side of the torsion coil spring stored in the storage portion is in elastic contact with the bottom wall, and other than the torsion coil spring. Since the end side is in elastic contact with the operation member, a return structure of the operation member with a simple configuration can be provided.
[0052]
In addition, since it has two fixed contacts with different heights, if a fixed contact with a low height is arranged on the side where the moving amount of the contact portion is large, the height direction can be suppressed, and a small size can be obtained. It is done.
[0053]
Further, the bottom wall has a pedestal portion that protrudes upward, and a concave portion that is provided on the upper surface of the pedestal portion, and a support portion that is provided at the lower portion of the operation member is engaged with the concave portion, Since the operation member is capable of rotating with the support portion as a fulcrum, the support structure of the operation member is simple, a conventional support bar is not required, and an inexpensive product with good productivity can be obtained.
[0054]
The operating member has a fan-shaped operating portion extending laterally from one end side of the support portion. A cover for attaching the operating member is attached to the insulating base, and the operating portion is removed from a hole provided in the cover. Since it protrudes in the direction, only one operation portion is required, and the size can be further reduced in the lateral direction as compared with the conventional case.
[0055]
In addition, since the upper part of the operation member is in contact with the inner surface of the cover, the operation member is sandwiched between the insulating base and the cover and is held so as to be able to operate the seesaw. A good one is obtained.
[0056]
In addition, the fixed contact with a high height is arranged in the vicinity of the support part, and the fixed contact with a low height is arranged at a position far from the support part. A low fixed contact can be arranged, the height direction can be suppressed, and a small size can be obtained.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a state in which an insulating base is cut away in a lever type switch of the present invention.
FIG. 2 is a plan view showing a state in which a top plate of a cover is removed according to the lever type switch of the present invention.
FIG. 3 is a cross-sectional view of a principal part showing a mounting state of an operation member according to the lever type switch of the present invention.
FIG. 4 is a cross-sectional view of an essential part showing a mounting state of a movable contact and a biasing member in the lever type switch of the present invention.
FIG. 5 is an operation explanatory diagram showing an unoperated state of the operation member according to the lever type switch of the present invention.
FIG. 6 is an operation explanatory view showing a state in which an operation member is operated according to the lever type switch of the present invention.
[Fig. 7] The lever type switch of the present invention.referenceThe perspective view of a movable contact in connection with an example.
FIG. 8 is a cross-sectional view of a main part of a conventional seesaw type switch.
FIG. 9 is a cross-sectional view showing the operation of a conventional seesaw type switch.
10 is a cross-sectional view taken along line 10-10 in FIG.
[Explanation of symbols]
1 Insulating substrate
1a Bottom wall
1b side wall
1c pedestal
1d recess
1e Latch part
2 Fixed contacts
2a Contact part
2b terminal
3 Cover
3a Top plate
3b Side plate
3c hole
3d locking piece
4 Operation members
4a Body
4b receiving section
4c shoulder
4d Locking part
4e storage section
4f Bearing
4g operation unit
5 movable contacts
5a Open part
5b first base
5c second base
5d 1st connection part
5e 2nd connection part
5f hole
5g first contact part
5h Second contact part
5j Locking piece
6 Biasing member
6a winding part
6b end
6c end

Claims

An insulating base having a bottom wall; at least two fixed contacts attached to the bottom wall in a state of protruding upward from one surface of the bottom wall; a movable contact that can be contacted with and separated from the fixed contact; and the movable contact The movable contact is formed by bending a metal plate having a spring property, and an opening is provided so that the plate surfaces of the metal plate face each other. The first and second bases, and the first and second connection parts that are spaced apart from each other and connect the upper portions of the first and second base parts, and the first and second connection parts. At least two first and second contact portions provided so as to protrude upward from the first and second base portions so as to face each other in a state of being positioned between the portions, and the fixed contact is Positioned between the opening portion located between the first and second base portions and the first and second contact portions, and capable of rotating. The movable contact moves up and down in the direction in which the fixed contact extends by the operation of the operation member held on, and the two fixed contacts are turned on and off via the first and second contact portions. A lever-type switch, wherein the bottom wall includes a pedestal portion protruding upward and a recess provided on the upper surface of the pedestal portion; The provided support portion is engaged, and the operation member can be rotated about the support portion as a fulcrum, and the operation member is always urged by the urging member, and when the operation member is operated, The operation member is restored to its original state by the urging member, and one of the at least two fixed contacts is disposed in the vicinity of the support portion, and the other The fixed contact is far from the support portion. Disposed, the movable contact, the first, second coupling part is, while being formed by bending into a U-shape each independently state spaced from each other, said first, second connecting portions the bore defined between, U-shaped first, the upper is connected by a second connecting portion first, the first which protrudes from the second base, the is disposed second contact portion, the first, second base portion, said first and second contact portions and the U-shaped said first, close to the yard wall than the top portion of the second coupling part is arranged at a position, the fixed contact, the first of said movable contact from said yard wall of the insulating substrate, the first through the opening located between the second base, the second contact It is extended to reach the part, with the rotation operation of the operation member, the first movable contact, wherein is made to protrude the second contact portion first, before between second base From the open side, the first, the located at the top side of the second coupling part first, led to the second contact portion, the first, between the top portion of the second coupling portion, said support portion to penetrate the tip of the deployed other of said fixed contact at a position far, moved up and down in the direction in which the moving contact extension of the fixed contact, the first two of the through the second contact portion A lever-type switch characterized in that the fixed contacts are turned on and off .

A lower part of the operation member is provided with a housing part for housing the movable contact and a support part for latching the movable contact, and the movable contact is housed in the housing part. 2. The lever-type switch according to claim 1 , wherein the lever-type switch is attached to the operation member by being hooked to the support portion.

3. The lever type switch according to claim 2, wherein a shoulder portion is provided at a lower portion of the operation member, and the shoulder portion presses a top portion of the coupling portion of the movable contact.

A storage portion for storing the biasing member made of a torsion coil spring is provided at a lower portion of the operation member, and one end side of the torsion coil spring stored in the storage portion is in elastic contact with the bottom wall, and the twist lever switch according to any one of claims 1 to 3, the other end of the coil spring is characterized in that elastic contact with the operating member.

Lever switch according to any one of claims 1 to 4, wherein the tall the fixed contact, that lower the fixed contact heights, that had two of said fixed contacts of different heights .

The operating member has a fan-shaped operating portion extending in a lateral direction from one end side of the support portion, and a cover for attaching the operating member is attached to the insulating base, and the hole is provided in the cover. lever switch according to any one of claims 1 to 5 in which the operation unit is characterized in that outwardly projecting.

7. The lever according to claim 6 , wherein an upper portion of the operation member abuts against an inner surface of the cover, and the operation member is held between the insulating base and the cover so as to be rotatable. Type switch.