JP2004199954A

JP2004199954A - Switch device

Info

Publication number: JP2004199954A
Application number: JP2002365579A
Authority: JP
Inventors: Satoru Konno; 悟今野
Original assignee: Alps Electric Co Ltd
Current assignee: Alps Alpine Co Ltd
Priority date: 2002-12-17
Filing date: 2002-12-17
Publication date: 2004-07-15

Abstract

<P>PROBLEM TO BE SOLVED: To provide a switch device easy to assemble and excellent in operation reliability. <P>SOLUTION: The switch device comprises a cover 1 and a case 2 constructing a cabinet, an external connection terminal 3 arranged in the cover 1, a circuit board 8 on which, a required circuit pattern including four sets of fixed contacts 4, 5, 6, 7 is formed, an LED 9 mounted on the circuit board 8, a click rubber 10 covering the upper surface of the circuit board 8, two cams 11, 12 jointed to the click rubber 10, and an operation knob 13 rocking movement freely held on the case 2. The cam 11 is put on hollow convex parts 22, 23, and convex parts 11d, 11e formed at the lower surface of the cam 11 are compulsorily fitted into convex parts 22e, 23e arranged on the summit surface of the convex pares 22, 23, and the cam 12 is put on hollow convex parts 24, 25, and convex parts 12d, 12e formed at the lower surface of the cam 12 are compulsorily fitted into convex parts 24e, 25e arranged on its summit surface of the hollow convex parts 24, 25. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、車載用パワーウインド装置などに適用されるスイッチ装置に係り、特に、クリックゴムに形成された中空凸部と該中空凸部を押圧するカムとの連結構造に関する。
【０００２】
【従来の技術】
従来より、例えば車載用パワーウインド装置などに適用されるスイッチ装置として、固定接点群が形成された配線基板と、固定接点群のそれぞれに対応する可動接点群を有する中空凸部が形成されたクリックゴムと、複数個の中空凸部に懸架されたカム（作動板）と、当該カムを介してクリックゴムの中空凸部に押圧力を付与し、固定接点群中の固定接点と可動接点群中の可動接点とを選択的に断続する操作つまみとを備えたものが知られている。
【０００３】
従来のこの種のスイッチ装置においては、図９に示すように、クリックゴム１０１に形成された中空凸部１０２の頂部に突起１０３が形成されると共に、カム１０４の対応する部分に係合孔１０５が開設されており、係合孔１０５内に突起１０３を挿入することによってクリックゴム１０１とカム１０４とが連結されている。なお、図中の符号１０６は固定接点、符号１０７は配線基板、符号１０８は可動接点、符号１０９は操作つまみ、符号１１０はスイッチ装置の筐体、符号１１１はＬＥＤを示している（例えば、特許文献１参照。）。
【０００４】
【特許文献１】
特開平８−１１１１４２号公報（図５）
【０００５】
【発明が解決しようとする課題】
ところで、前記従来例に係るスイッチ装置は、各固定接点１０６と各可動接点１０８とを対向にして配線基板１０７上にクリックゴム１０１を設定した後、係合孔１０５内に突起１０３を挿入して所定の２つの中空凸部１０２上にカム１０４を懸架し、次いで、カム１０４と操作つまみ１０９とを対向にして配線基板１０７上に筐体１１０を被着することにより組み立てられる。
【０００６】
前記構成のスイッチ装置は、カム１０４が中空凸部１０２の頂面によって安定に保持されるものであるが、中空凸部１０２の頂面には小径の突起１０３しか形成し得ず、また、突起１０３は低剛性なので、クリックゴム１０１とカム１０４との組立時に突起１０３を係合孔１０５内に正確かつ速やかに圧入することが難しく、組立に多大の労力を要するという不都合のあることが判明した。
【０００７】
もちろん、係合孔１０５の直径を突起１０３の直径に比べて充分に大きくすればかかる不都合は解消できるが、このようにするとクリックゴム１０１とカム１０４とが一体化されないので、組立中に僅かな力が加わっただけでカム１０４が脱落したり、クリックゴム１０１に対するカム１０４の設定位置がずれて組み立てられるといった不都合を生じやすいので、採用することはできない。
【０００８】
本発明は、かかる技術的課題を解決するためになされたものであって、その目的は、組立が容易で動作信頼性に優れたスイッチ装置を提供することにある。
【０００９】
【課題を解決するための手段】
本発明は、前記の課題を解決するため、スイッチ装置を、固定接点群が形成された配線基板と、前記固定接点群のそれぞれに対応する可動接点群を有する中空凸部が形成されたクリックゴムと、複数個の前記中空凸部に懸架されたカムと、当該カムを介して前記クリックゴムの中空凸部に押圧力を付与し前記固定接点群中の固定接点と前記可動接点群中の可動接点とを選択的に断続する操作つまみとを備え、前記中空凸部の頂面に凹部を形成すると共に前記カムに前記凹部内に嵌合可能な凸部を形成し、前記凹部内に前記凸部を強嵌合することにより前記クリックゴムと前記カムとを連結するという構成にした。
【００１０】
このように、カムに凸部を形成し中空凸部の頂面に凹部を形成すると、カムは金属や硬質プラスチックなどの高剛性の材料をもって形成されるので、柔軟性の中空凸部に凸部を形成する場合に比べて凸部の剛性を格段に高めることができ、一方、凹部は柔軟性なので、凹部に対する凸部の強嵌合を容易かつ確実に行うことができる。よって、クリックゴムに対するカムの組立を容易化でき、かつ、組立中にカムが脱落したりクリックゴムとカムとの間の位置ずれが発生することを防止できることから、良好な組立性を維持することができる。
【００１１】
また、本発明は、前記構成のスイッチ装置において、前記操作つまみを揺動可能に設定し、前記操作つまみを中立位置より第１の揺動方向に操作したときに作動される第１のカムと、当該第１のカムによって押圧される２つの中空凸部と、前記操作つまみを中立位置より第２の揺動方向に操作したときに作動される第２のカムと、当該第２のカムによって押圧される２つの中空凸部とを備えるという構成にした。
【００１２】
このように構成すると、操作つまみを第１の揺動方向に操作することによって第１のカムを作動し、当該第１のカムによって第１及び第２のスイッチ信号を出力させることができ、また、操作つまみを第２の揺動方向に操作することによって第２のカムを作動し、当該第２のカムによって第３及び第４のスイッチ信号を出力させることができるので、これら第１乃至第４のスイッチ信号を例えば車載用パワーウインドの開駆動信号、全開駆動信号、閉駆動信号及び全閉駆動信号として利用することにより、車載用パワーウインド装置に適用可能なスイッチ装置とすることができる。
【００１３】
また、本発明は、前記構成のスイッチ装置において、前記操作つまみの押圧力を前記カムの中心位置よりも一端側に偏った位置に作用し、前記操作つまみの押し込み操作量に応じて前記カムが懸架される複数個の前記中空凸部を順次座屈させるという構成にした。
【００１４】
このように、操作つまみの押圧力をカムの中心位置よりも一端側に偏った位置に作用させると、カムが懸架された複数個の中空凸部が同時に座屈されず、より大きな押圧力を受ける中空凸部が優先的に座屈される。例えば、カムの両端部を２個の中空凹部に懸架し、操作つまみの押圧力をカムの中心位置よりも一端側に偏った位置に作用させた場合、まず前記一端側の中空凹部のみを座屈させて可動接点と固定接点を接触させることにより第１のスイッチ信号を出力させ、次いで、操作つまみの押し込み操作量を増加して２個の中空凹部を共に座屈させ、第２のスイッチ信号を出力させることができるので、これら第１及び第２のスイッチ信号を例えば車載用パワーウインドの開駆動信号及び全開駆動信号として利用することにより、車載用パワーウインド装置に適用可能なスイッチ装置とすることができる。
【００１５】
また、本発明は、前記構成のスイッチ装置において、前記配線基板にＬＥＤを実装すると共に、前記クリックゴムに前記ＬＥＤからの発光を透過させるための光透過部を形成するという構成にした。
【００１６】
このように構成すると、操作つまみに所要の絵文字などを光によって表すことができるので、暗部における使い勝手が良いスイッチ装置とすることができる。
【００１７】
【発明の実施の形態】
以下、本発明に係るスイッチ装置の一実施形態例を、図１乃至図８に基づいて説明する。図１は実施形態例に係るスイッチ装置の分解斜視図、図２は実施形態例に係るスイッチ装置に備えられるクリックゴムとカムとの連結状態を示す要部拡大断面図、図３は実施形態例に係るスイッチ装置の一方向から見た側面図、図４は実施形態例に係るスイッチ装置の他の一方向から見た側面図、図５は実施形態例に係るスイッチ装置の第１操作状態を示す一方向から見た側面図、図６は実施形態例に係るスイッチ装置の第１操作状態を示す他の一方向から見た側面図、図７は実施形態例に係るスイッチ装置の第２操作状態を示す一方向から見た側面図、図８は実施形態例に係るスイッチ装置の第２操作状態を示す他の一方向から見た側面図である。
【００１８】
図１に示すように、本例のスイッチ装置は、筐体を構成するカバー１及びケース２と、前記カバー１内に設定される外部接続端子３と、４組の固定接点４，５，６，７を含む所要の回路パターンが形成され、前記カバー１内に収納されて前記外部接続端子３と電気的に接続された回路基板８と、当該回路基板８に実装されたＬＥＤ９と、前記回路基板８の上面に被着されるクリックゴム１０と、当該クリックゴム１０に連結される２つのカム１１，１２と、前記ケース２に揺動可能に保持される操作つまみ１３とから構成されている。
【００１９】
カバー１の側面部には係止突起１ａが形成され、ケース２の側面部には当該係止突起１ａの係合孔２ａが形成されていて、前記係止突起１ａを前記係合孔２ａに係合することにより、外部接続端子３、回路基板８、ＬＥＤ９、クリックゴム１０及びカム１１，１２を収納可能な内部空間を有する筐体が構成される。また、カバー１の一端には、下方に突出するコネクタ部１ｂが形成されており、外部接続端子３の先端部が収納される。このコネクタ部１ｂには、図示しない外部接続コネクタが接続される。一方、ケース２の上面には操作つまみ１３の取付部２ｂが突設されており、当該取付部２ｂには操作つまみ１３の取付軸２ｃが開設されていて、操作つまみ１３が当該取付軸２ｃを中心として揺動可能に取り付けられる。
【００２０】
クリックゴム１０は、回路基板８の上面に被着される本体部２１と、前記回路基板８における固定接点４，５，６，７の形成部と対応する位置に形成されたドーム状の中空凸部２２，２３，２４，２５と、前記回路基板８におけるＬＥＤ９の設定部と対応する位置に形成された光透過部２６とから構成されている。中空凸部２２は、図２に拡大して示すように、本体部２１より起立された円環部２２ａと、当該円環部２２ａの上端より形成された円錐形の弾性変形部２２ｂと、当該弾性変形部２２ｂの上端部に形成された可動接点設定部２２ｃとから構成されており、可動接点設定部２２ｃの下面には固定接点４を導通させるための可動接点２２ｄが設けられ、また、可動接点設定部２２ｃの頂面にはカム１１を連結するための凹部２２ｅが形成されている。なお、他の中空凸部２３，２４，２５も、これと同様に構成されるが、中空凸部２３はカム１１を連結する凹部２３ｅ、中空凸部２４，２５はカム１２を連結するための凹部２４ｅ，２５ｅをそれぞれ備える。一方、光透過部２６は、ＬＥＤ９からの発光を透過できるように薄肉に形成される。
【００２１】
カム１１は、操作つまみ１３の押圧力を受圧する受圧部１１ａと、当該受圧部１１ａの両端部に形成された押圧部１１ｂ，１１ｃと、各押圧部１１ｂ，１１ｃの下面に突設された凸部１１ｄ，１１ｅとから構成されている。カム１２もカム１１と同形同大であって、操作つまみ１３の押圧力を受圧する受圧部１２ａと、当該受圧部１２ａの両端部に形成された押圧部１２ｂ，１２ｃと、各押圧部１２ｂ，１２ｃの下面に突設された凸部１２ｄ，１２ｅとから構成されている。前記各凸部１１ｄ，１１ｅ，１２ｄ，１２ｅは、前記クリックゴム１０に形成された凹部２２ｅ，２３ｅ，２４ｅ，２５ｅ内に強嵌合可能なサイズに形成される。
【００２２】
操作つまみ１３は、指先で操作可能な大きさを有し、図３及び図４に示すように、前記ケース２に形成された取付軸２ｃの挿入孔１３ａと、前記カム１１の操作部１３ｂと、前記カム１２の操作部１３ｃと、前記ＬＥＤ９からの発光によって照光される絵文字１３ｄとが形成されている。この操作つまみ１３は、挿入孔１３ａ内に取付軸２ｃを挿入することによってケース２に揺動可能に取り付けられる。操作つまみ１３をケース２に取り付けたとき、図３及び図４に示すように、操作つまみ１３に形成された各操作部１３ｂ，１３ｃがそれぞれカム１１，１２の受圧部１１ａ，１２ａの中心位置より一方の押圧部（図４の例では、押圧部１１ｂ，１２ｂ）側に偏った位置に当接される。
【００２３】
本例のスイッチ装置の組立に際しては、まずカバー１内に外部接続端子３と回路基板８とを収納し、これら外部接続端子３と回路基板８とをはんだ付けなどにより電気的に接続する。次いで、回路基板８上にクリックゴム１０を被着し、回路基板８に形成された各固定接点４，５，６，７とクリックゴム１０に形成された各中空凸部２２，２３，２４，２５とを対向に配置する。しかる後に、クリックゴム１０の一端側に配置された２つの中空凸部２２，２３上にカム１１を載置し、可動接点設定部２２ｃ，２３ｃの頂面に形成された凹部２２ｅ，２３ｅ内に押圧部１１ｂ，１１ｃの下面に形成された凸部１１ｄ，１１ｅを強嵌合する。凹部２２ｅ，２３ｅに対する凸部１１ｄ，１１ｅの強嵌合は、各中空凸部２２，２３の弾性変形部２２ｂ，２３ｂが弾性変形され、可動接点２２ｄ，２３ｄが固定接点４，５と密着するまでカム１１をクリックゴム１０に押し付けることによって行うことができる。同様に、クリックゴム１０の他端側に配置された２つの中空凸部２４，２５上にカム１２を載置し、可動接点設定部２４ｃ，２５ｃの頂面に形成された凹部２４ｅ，２５ｅ内に押圧部１２ｂ，１２ｃの下面に形成された凸部１２ｄ，１２ｅを強嵌合する。これにより、クリックゴム１０とカム１１，１２とが一体化される。次いで、カバー１の側面部に形成された係止突起１ａをケース２の側面部には形成された係合孔２ａに係合することにより、カバー１とケース２とを一体化する。最後に、ケース２に形成された取付軸２ｃを操作つまみ１３に形成された挿入孔１３ａに挿入し、操作つまみ１３に形成された操作部１３ｂ，１３ｃをそれぞれカム１１，１２の受圧部１１ａ，１２ａに当接することによって組立を完了する。
【００２４】
以下、前記実施形態例に係るスイッチ装置の動作について説明する。
【００２５】
操作つまみ１３の非操作時には、図３及び図４に示すように、クリックゴム１０の中空凸部２２，２３，２４，２５がいずれも座屈されておらず、操作つまみ１３の各操作部１３ｂ，１３ｃはクリックゴム１０の弾性力によってカム１１，１２の受圧部１１ａ，１２ａに弾接されていて、各固定接点４，５，６，７と各可動接点２２ｄ，２３ｄ，２４ｄ，２５ｄとは非導通状態に保たれている。
【００２６】
この状態から操作つまみ１３を押圧操作して操作つまみ１３を前方に回転させると、図５に示すように、その押圧力がカム１１を介してクリックゴム１０の中空凸部２２，２３に伝達される。なお、この場合には、操作つまみ１３に形成された操作部１３ｃがカム１２の受圧部１２ａより離隔するため、クリックゴム１０の中空凸部２４，２５には操作つまみ１３の押圧力が伝達されない。そして、操作つまみ１３に形成された操作部１３ｂは、カム１１の押圧部１１ｂ側に偏った位置に当接されているため、中空凸部２３よりも中空凸部２２により大きな押圧力が作用し、図６に示すように、中空凸部２３より先に中空凸部２２が座屈される。これにより、回路基板８に形成された固定接点４と中空凸部２２内に設定された可動接点２２ｄとが接触して固定接点４が導通され、外部接続端子３より固定接点４が導通されたことによるスイッチオン信号が出力される。このスイッチオン信号は、本実施形態例に係るスイッチ装置を車載用パワーウインド装置の操作スイッチとして適用する場合、ウィンドを閉方向に動作させるための駆動信号として利用される。中空凸部２２が座屈されたとき、それに伴うクリック感触がカム１１を介して操作つまみ１３に伝達されるので、操作者は固定接点４を選択的にオン操作できたことをブラインドタッチで知ることができる。
【００２７】
この状態から操作つまみ１３への押圧力の付与を断つと、中空凸部２２に形成された弾性変形部２２ｂの復元力によりカム１１及び操作つまみ１３が押し上げられ、図３及び図４に示す初期状態に復帰する。これにより、固定接点４と可動接点２２ｄとの接触が解除され、固定接点部材４の導通が遮断されたことによるスイッチオフ信号が外部接続端子３から出力される。このスイッチオフ信号は、本実施形態例に係るスイッチ装置を車載用パワーウインド装置の操作スイッチとして適用する場合、ウィンドの閉動作を停止させるための駆動信号として利用される。
【００２８】
また、図５及び図６の状態から操作つまみ１３をさらにもう一段押し込むと、図７及び図８に示すように、その押圧力によって中空凸部２２と中空凸部２３とが共に座屈され、固定接点４と可動接点２２ｄとが接触して固定接点４が導通されると共に固定接点５と可動接点２３ｄとが接触して固定接点５が導通されて、外部接続端子３より固定接点４の導通及び固定接点５の導通に伴うスイッチオン信号が出力される。このスイッチオン信号は、実施形態例に係るスイッチ装置を車載用パワーウインド装置の操作スイッチとして適用する場合、ウィンドを全閉させるための駆動信号として利用される。中空凸部２２及び中空凸部２３が座屈されたとき、それに伴うクリック感触がカム１１を介して操作つまみ１３に伝達されるので、操作者は固定接点４と固定接点５とを同時にオン操作できたことをブラインドタッチで知ることができる。
【００２９】
この状態から操作つまみ１３への操作力の付与を断つと、中空凸部２２に形成された弾性変形部２２ｂの復元力及び中空凸部２３に形成された弾性変形部２３ｂの復元力によりカム１１及び操作つまみ１３が押し上げられ、図３及び図４に示す初期状態に復帰する。
【００３０】
一方、図３及び図４の状態から操作つまみ１３を時計方向に回転させた場合には、その押圧力がカム１２を介してクリックゴム１０の中空凸部２４，２５に伝達される。なお、この場合には、操作つまみ１３に形成された操作部１３ｂがカム１１の受圧部１１ａより離隔するため、クリックゴム１０の中空凸部２２，２３には操作つまみ１３の押圧力が伝達されない。そして、操作つまみ１３に形成された操作部１３ｃは、カム１２の押圧部１２ｂ側に偏った位置に当接されているため、中空凸部２５よりも中空凸部２４により大きな押圧力が作用し、中空凸部２５より先に中空凸部２４が座屈される。これにより、回路基板８に形成された固定接点６と中空凸部２４内に設定された可動接点２４ｄとが接触して固定接点６が導通され、外部接続端子３より固定接点６が導通されたことによるスイッチオン信号が出力される。このスイッチオン信号は、本実施形態例に係るスイッチ装置を車載用パワーウインド装置の操作スイッチとして適用する場合、ウィンドを開方向に動作させるための駆動信号として利用される。中空凸部２４が座屈されたとき、それに伴うクリック感触がカム１２を介して操作つまみ１３に伝達されるので、操作者は固定接点６を選択的にオン操作できたことをブラインドタッチで知ることができる。
【００３１】
この状態から操作つまみ１３への押圧力の付与を断つと、中空凸部２４に形成された弾性変形部２４ｂの復元力によりカム１２及び操作つまみ１３が押し上げられ、図３及び図４に示す初期状態に復帰する。これにより、固定接点６と可動接点２４ｄとの接触が解除され、固定接点部材６の導通が遮断されたことによるスイッチオフ信号が外部接続端子３から出力される。このスイッチオフ信号は、本実施形態例に係るスイッチ装置を車載用パワーウインド装置の操作スイッチとして適用する場合、ウィンドの開動作を停止させるための駆動信号として利用される。
【００３２】
また、中空凸部２４が座屈された状態から操作つまみ１３をさらにもう一段押し込むと、その押圧力によって中空凸部２４と中空凸部２５とが共に座屈され、固定接点６と可動接点２４ｄとが接触して固定接点６が導通されると共に固定接点７と可動接点２５ｄとが接触して固定接点７が導通されて、外部接続端子３より固定接点６の導通及び固定接点７の導通に伴うスイッチオン信号が出力される。このスイッチオン信号は、実施形態例に係るスイッチ装置を車載用パワーウインド装置の操作スイッチとして適用する場合、ウィンドを全開させるための駆動信号として利用される。中空凸部２４及び中空凸部２５が座屈されたとき、それに伴うクリック感触がカム１２を介して操作つまみ１３に伝達されるので、操作者は固定接点６と固定接点７とを同時にオン操作できたことをブラインドタッチで知ることができる。
【００３３】
この状態から操作つまみ１３への操作力の付与を断つと、中空凸部２４に形成された弾性変形部２４ｂの復元力及び中空凸部２５に形成された弾性変形部２５ｂの復元力によりカム１２及び操作つまみ１３が押し上げられ、図３及び図４に示す初期状態に復帰する。
【００３４】
なお、図３及び図４の状態から操作つまみ１３を時計方向に回転させた場合については、図５乃至図８より容易に推測できるため、図示を省略する。
【００３５】
本実施形態例に係るスイッチ装置は、カム１１，１２に凸部１１ｄ，１１ｅ，１２ｄ，１２ｅを形成し、クリックゴム１０の中空凸部２２，２３，２４，２５の頂面に凹部２２ｅ，２３ｅ，２４ｅ，２５ｅを形成したので、柔軟性の中空凸部に凸部を形成し高剛性のカムに孔を開設する場合に比べて凸部の剛性を格段に高めることができ、凹部２２ｅ，２３ｅ，２４ｅ，２５ｅに対する凸部１１ｄ，１１ｅ，１２ｄ，１２ｅの強嵌合を容易かつ確実に行うことができる。よって、クリックゴム１０に対するカム１１，１２の組立を容易化でき、かつ、組立中にカム１１，１２が脱落したり、クリックゴム１０とカム１１，１２との間の位置ずれが発生することを防止できて、良好な組立性を維持することができる。
【００３６】
また、本実施形態例に係るスイッチ装置は、操作つまみ１３をケース２に対して揺動可能に設定し、操作つまみ１３を中立位置より第１の揺動方向に操作したときに作動される第１のカム１１と、当該第１のカム１１によって押圧される２つの中空凸部と、操作つまみ１３を中立位置より第２の揺動方向に操作したときに作動される第２のカム１２と、当該第２のカム１２によって押圧される２つの中空凸部とを備えたので、操作つまみ１３を第１の揺動方向に操作することによって第１及び第２のスイッチ信号を出力させることができ、また、操作つまみ１３を第２の揺動方向に操作することによって第３及び第４のスイッチ信号を出力させることができる。よって、これら第１乃至第４のスイッチ信号を例えば車載用パワーウインドの開駆動信号、全開駆動信号閉駆動信号及び全閉駆動信号として利用することにより、車載用パワーウインド装置に適用可能なスイッチ装置とすることができる。
【００３７】
また、本実施形態例に係るスイッチ装置は、操作つまみ１３の揺動操作に伴う押圧力をカム１１，１２の中心位置よりも一端側に偏った位置に作用するので、カム１１，１２が懸架された２個の中空凸部２２，２３又は２４，２５が同時に座屈されず、より大きな押圧力を受ける中空凸部２２，２４が優先的に座屈され、しかる後に他方の中空凸部２３，２５が座屈される。よって、操作つまみ１３の操作方向及び操作量を変更することによって４種類のスイッチ信号を取り出すことができ、これら４種類のスイッチ信号を例えば車載用パワーウインドの開駆動信号、全開駆動信号閉駆動信号及び全閉駆動信号として利用することにより、車載用パワーウインド装置に適用可能なスイッチ装置とすることができる。
【００３８】
また、本実施形態例に係るスイッチ装置は、配線基板８にＬＥＤ９を実装すると共にクリックゴム１０にＬＥＤ９からの発光を透過させるための光透過部２６を形成したので、操作つまみ１３に所要の絵文字などを光によって表すことができ、暗部における使い勝手が良いスイッチ装置とすることができる。
【００３９】
なお、前記実施形態例においては、操作つまみ１３がケース２に揺動可能に設定された揺動形のスイッチ装置を例にとって説明したが、操作つまみ１３がケース２にスライド可能に設定されたスライド形のスイッチ装置にも応用することができる。
【００４０】
【発明の効果】
以上説明したように、本発明のスイッチ装置は、カムに凸部を形成し、クリックゴムの中空凸部の頂面に凹部を形成したので、柔軟性の中空凸部に凸部を形成し高剛性のカムに当該凸部を強嵌合するための凹部又は開口を開設する場合に比べて凸部の剛性を格段に高めることができ、一方、凹部は柔軟性なので、凹部に対する凸部の強嵌合を容易かつ確実に行うことができる。よって、クリックゴムに対するカムの組立を容易化でき、かつ、組立中のカムが脱落したり、クリックゴムとカムとの間の位置ずれが発生することを防止できて、良好な組立性を維持することができる。
【図面の簡単な説明】
【図１】実施形態例に係るスイッチ装置の分解斜視図である。
【図２】実施形態例に係るスイッチ装置に備えられるクリックゴムとカムとの連結状態を示す要部拡大断面図である。
【図３】実施形態例に係るスイッチ装置の一方向から見た側面図である。
【図４】実施形態例に係るスイッチ装置の他の一方向から見た側面図である。
【図５】実施形態例に係るスイッチ装置の第１操作状態を示す一方向から見た側面図である。
【図６】実施形態例に係るスイッチ装置の第１操作状態を示す他の一方向から見た側面図である。
【図７】実施形態例に係るスイッチ装置の第２操作状態を示す一方向から見た側面図である。
【図８】実施形態例に係るスイッチ装置の第２操作状態を示す他の一方向から見た側面図である。
【図９】従来例に係るスイッチ装置の非操作状態の断面図である。
【符号の説明】
１カバー
２ケース
３外部接続端子
４，５，６，７固定接点
８回路基板
９ＬＥＤ
１０クリックゴム
１１，１２カム
１１ｄ，１１ｅ，１２ｄ，１２ｅ凸部
１３操作つまみ
２２，２３，２４，２５中空凸部
２２ｄ，２３ｄ，２４ｄ，２５ｄ可動接点
２２ｅ，２３ｅ，２４ｅ，２５ｅ凹部[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a switch device applied to an in-vehicle power window device and the like, and more particularly, to a connection structure of a hollow convex portion formed on a click rubber and a cam for pressing the hollow convex portion.
[0002]
[Prior art]
Conventionally, as a switch device applied to, for example, an in-vehicle power window device, a wiring board on which a fixed contact group is formed and a click having a hollow convex portion having a movable contact group corresponding to each of the fixed contact group are formed. Rubber, a cam (operating plate) suspended on a plurality of hollow protrusions, and a pressing force applied to the hollow protrusions of the click rubber via the cams, so that the fixed contact in the fixed contact group and the movable contact group in the fixed contact group. And an operation knob for selectively intermittently connecting to and from a movable contact.
[0003]
In this type of conventional switch device, as shown in FIG. 9, a projection 103 is formed on the top of a hollow convex portion 102 formed on a click rubber 101, and an engagement hole 105 is formed on a corresponding portion of a cam 104. The click rubber 101 and the cam 104 are connected by inserting the protrusion 103 into the engagement hole 105. In the drawings, reference numeral 106 denotes a fixed contact, reference numeral 107 denotes a wiring board, reference numeral 108 denotes a movable contact, reference numeral 109 denotes an operation knob, reference numeral 110 denotes a housing of a switch device, and reference numeral 111 denotes an LED (for example, Patent Reference 1).
[0004]
[Patent Document 1]
JP-A-8-111142 (FIG. 5)
[0005]
[Problems to be solved by the invention]
By the way, in the switch device according to the conventional example, after setting the click rubber 101 on the wiring board 107 with each fixed contact 106 and each movable contact 108 facing each other, the protrusion 103 is inserted into the engagement hole 105. The cam 104 is suspended on two predetermined hollow protrusions 102, and then the housing 104 is attached on the wiring board 107 with the cam 104 and the operation knob 109 facing each other.
[0006]
In the switch device having the above-described configuration, the cam 104 is stably held by the top surface of the hollow protrusion 102, but only the small-diameter protrusion 103 can be formed on the top surface of the hollow protrusion 102. 103 has low rigidity, so it is difficult to accurately and quickly press-fit the projection 103 into the engagement hole 105 when assembling the click rubber 101 and the cam 104, and it has been found that there is an inconvenience that a large amount of labor is required for assembly. .
[0007]
Of course, if the diameter of the engagement hole 105 is made sufficiently larger than the diameter of the protrusion 103, such a disadvantage can be solved. However, since the click rubber 101 and the cam 104 are not integrated, a slight This cannot be adopted because it is likely to cause inconveniences such as the cam 104 dropping off or the cam 104 being displaced from the click rubber 101 only by the application of a force.
[0008]
The present invention has been made to solve such a technical problem, and an object of the present invention is to provide a switch device which is easy to assemble and has excellent operation reliability.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a switch device including a wiring board on which a fixed contact group is formed, and a click rubber having a hollow convex portion having a movable contact group corresponding to each of the fixed contact groups. And a cam suspended by the plurality of hollow convex portions, and a pressing force applied to the hollow convex portion of the click rubber through the cam to move the fixed contacts in the fixed contact group and the movable contacts in the movable contact group. An operation knob for selectively intermittently connecting and disconnecting the contact, forming a concave portion on the top surface of the hollow convex portion, forming a convex portion that can be fitted in the concave portion on the cam, and forming the convex portion in the concave portion. The click rubber and the cam are connected by strongly fitting the parts.
[0010]
In this manner, when the convex portion is formed on the cam and the concave portion is formed on the top surface of the hollow convex portion, the cam is formed of a highly rigid material such as metal or hard plastic, so that the convex portion is formed on the flexible hollow convex portion. Is formed, the rigidity of the convex portion can be remarkably increased as compared with the case where the concave portion is formed. On the other hand, since the concave portion is flexible, the strong fitting of the convex portion to the concave portion can be performed easily and reliably. Therefore, it is possible to easily assemble the cam with the click rubber and to prevent the cam from dropping out during the assembling or to prevent the click rubber and the cam from being displaced from each other. Can be.
[0011]
The present invention also provides the switch device having the above-mentioned configuration, wherein the operation knob is set to be swingable, and a first cam that is operated when the operation knob is operated in a first swing direction from a neutral position. Two hollow projections pressed by the first cam, a second cam operated when the operation knob is operated in a second swing direction from a neutral position, and a second cam operated by the second cam. It is configured to have two hollow convex portions to be pressed.
[0012]
With this configuration, the first cam can be operated by operating the operation knob in the first swing direction, and the first cam can output the first and second switch signals. By operating the operation knob in the second swinging direction, the second cam can be operated, and the second and third cams can output the third and fourth switch signals. By using the switch signal of No. 4 as, for example, an open drive signal, a fully open drive signal, a close drive signal, and a fully closed drive signal of the vehicle-mounted power window, a switch device applicable to the vehicle-mounted power window device can be obtained.
[0013]
Further, according to the present invention, in the switch device having the above configuration, the pressing force of the operation knob is applied to a position deviated to one end side from the center position of the cam, and the cam is operated in accordance with a pushing operation amount of the operation knob. The plurality of suspended hollow projections are sequentially buckled.
[0014]
As described above, when the pressing force of the operation knob is applied to a position deviated to one end side from the center position of the cam, the plurality of hollow protrusions on which the cam is suspended are not buckled at the same time, and a larger pressing force is applied. The hollow protrusion to be received is buckled preferentially. For example, when both ends of the cam are suspended in two hollow recesses, and the pressing force of the operation knob is applied to a position biased to one end side from the center position of the cam, first, only the hollow recesses at the one end side are seated. The first switch signal is output by bending and contacting the movable contact and the fixed contact, and then the operation amount of the operating knob is increased to buckle the two hollow recesses together, thereby obtaining the second switch signal. Can be output, for example, by using these first and second switch signals as an open drive signal and a fully open drive signal of an in-vehicle power window, to obtain a switch device applicable to an in-vehicle power window device. be able to.
[0015]
Further, according to the present invention, in the switch device having the above configuration, an LED is mounted on the wiring board, and a light transmitting portion for transmitting light emitted from the LED is formed on the click rubber.
[0016]
With this configuration, a pictogram or the like required for the operation knob can be represented by light, so that a switch device that is easy to use in a dark area can be provided.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a switch device according to the present invention will be described with reference to FIGS. FIG. 1 is an exploded perspective view of a switch device according to an embodiment, FIG. 2 is an enlarged sectional view of a main part showing a connection state between a click rubber and a cam provided in the switch device according to the embodiment, and FIG. 4 is a side view of the switch device according to the embodiment viewed from one direction, FIG. 4 is a side view of the switch device according to the embodiment viewed from another direction, and FIG. 5 illustrates a first operation state of the switch device according to the embodiment. FIG. 6 is a side view as viewed from one direction, FIG. 6 is a side view as viewed from another direction showing a first operation state of the switch device according to the embodiment, and FIG. 7 is a second operation of the switch device according to the embodiment. FIG. 8 is a side view showing the second operation state of the switch device according to the embodiment when viewed from another direction, showing the state.
[0018]
As shown in FIG. 1, the switch device of the present embodiment includes a cover 1 and a case 2 constituting a housing, an external connection terminal 3 set in the cover 1, and four sets of fixed contacts 4, 5, 6. , 7, a circuit board 8 housed in the cover 1 and electrically connected to the external connection terminals 3, an LED 9 mounted on the circuit board 8, It comprises a click rubber 10 attached to the upper surface of the substrate 8, two cams 11 and 12 connected to the click rubber 10, and an operation knob 13 held swingably on the case 2. .
[0019]
A locking projection 1a is formed on the side surface of the cover 1, and an engagement hole 2a for the locking projection 1a is formed on the side surface of the case 2. The locking projection 1a is connected to the engagement hole 2a. The engagement forms a housing having an internal space in which the external connection terminal 3, the circuit board 8, the LED 9, the click rubber 10, and the cams 11 and 12 can be stored. At one end of the cover 1, a connector part 1 b protruding downward is formed, and the tip of the external connection terminal 3 is housed. An external connector (not shown) is connected to the connector portion 1b. On the other hand, a mounting portion 2b of the operation knob 13 is projected from the upper surface of the case 2, and a mounting shaft 2c of the operation knob 13 is opened on the mounting portion 2b, and the operation knob 13 connects the mounting shaft 2c. Mounted pivotally as a center.
[0020]
The click rubber 10 includes a main body 21 attached to the upper surface of the circuit board 8, and a dome-shaped hollow protrusion formed at a position corresponding to a formation portion of the fixed contact 4, 5, 6, 7 on the circuit board 8. And a light transmitting section 26 formed at a position corresponding to the setting section of the LED 9 on the circuit board 8. As shown in an enlarged manner in FIG. 2, the hollow convex portion 22 includes an annular portion 22 a rising from the main body portion 21, a conical elastic deformation portion 22 b formed from an upper end of the annular portion 22 a, A movable contact setting portion 22c formed at an upper end portion of the elastic deformation portion 22b. A movable contact 22d for conducting the fixed contact 4 is provided on a lower surface of the movable contact setting portion 22c. A concave portion 22e for connecting the cam 11 is formed on the top surface of the contact setting portion 22c. The other hollow projections 23, 24, and 25 are configured in the same manner. However, the hollow projection 23 is a recess 23e for connecting the cam 11, and the hollow projections 24 and 25 are for connecting the cam 12. Concave portions 24e and 25e are provided, respectively. On the other hand, the light transmitting portion 26 is formed to be thin so as to transmit light emitted from the LED 9.
[0021]
The cam 11 includes a pressure receiving portion 11a for receiving the pressing force of the operation knob 13, pressing portions 11b and 11c formed at both ends of the pressure receiving portion 11a, and a convex formed on the lower surface of each of the pressing portions 11b and 11c. It is composed of sections 11d and 11e. The cam 12 also has the same shape and the same size as the cam 11, and has a pressure receiving portion 12a for receiving a pressing force of the operation knob 13, pressing portions 12b and 12c formed at both ends of the pressure receiving portion 12a, and each pressing portion 12b. , 12c are formed on the lower surfaces of the projections 12d, 12e. Each of the protrusions 11d, 11e, 12d, 12e is formed in a size that can be firmly fitted into the recesses 22e, 23e, 24e, 25e formed in the click rubber 10.
[0022]
The operation knob 13 has a size that can be operated with a fingertip. As shown in FIGS. 3 and 4, the operation knob 13 includes an insertion hole 13 a of the mounting shaft 2 c formed in the case 2, and an operation portion 13 b of the cam 11. , An operating portion 13c of the cam 12, and a pictogram 13d illuminated by light emission from the LED 9. The operation knob 13 is swingably attached to the case 2 by inserting the attachment shaft 2c into the insertion hole 13a. When the operation knob 13 is attached to the case 2, as shown in FIGS. 3 and 4, each of the operation portions 13 b and 13 c formed on the operation knob 13 is moved from the center position of the pressure receiving portions 11 a and 12 a of the cams 11 and 12, respectively. It is in contact with a position biased toward one of the pressing portions (the pressing portions 11b and 12b in the example of FIG. 4).
[0023]
When assembling the switch device of this embodiment, first, the external connection terminals 3 and the circuit board 8 are housed in the cover 1, and the external connection terminals 3 and the circuit board 8 are electrically connected by soldering or the like. Next, the click rubber 10 is applied on the circuit board 8, and the fixed contacts 4, 5, 6, 7 formed on the circuit board 8 and the hollow projections 22, 23, 24, 24, And 25 are arranged to face each other. Thereafter, the cam 11 is placed on the two hollow convex portions 22 and 23 arranged on one end side of the click rubber 10, and is inserted into the concave portions 22e and 23e formed on the top surfaces of the movable contact setting portions 22c and 23c. The protrusions 11d and 11e formed on the lower surfaces of the pressing parts 11b and 11c are strongly fitted. The strong fitting of the projections 11d, 11e to the recesses 22e, 23e is performed until the elastically deforming portions 22b, 23b of the hollow projections 22, 23 are elastically deformed and the movable contacts 22d, 23d come into close contact with the fixed contacts 4,5. This can be performed by pressing the cam 11 against the click rubber 10. Similarly, the cam 12 is placed on the two hollow projections 24, 25 arranged on the other end side of the click rubber 10, and the cams 12 are formed in the recesses 24e, 25e formed on the top surfaces of the movable contact setting sections 24c, 25c. The protrusions 12d and 12e formed on the lower surfaces of the pressing portions 12b and 12c are firmly fitted. Thereby, the click rubber 10 and the cams 11 and 12 are integrated. Next, the cover 1 and the case 2 are integrated by engaging the locking projections 1a formed on the side surface of the cover 1 with the engagement holes 2a formed on the side surface of the case 2. Finally, the mounting shaft 2c formed on the case 2 is inserted into the insertion hole 13a formed on the operation knob 13, and the operation portions 13b and 13c formed on the operation knob 13 are pressed by the pressure receiving portions 11a and 11a of the cams 11 and 12, respectively. The assembly is completed by abutting on 12a.
[0024]
Hereinafter, the operation of the switch device according to the embodiment will be described.
[0025]
When the operation knob 13 is not operated, as shown in FIGS. 3 and 4, none of the hollow convex portions 22, 23, 24, and 25 of the click rubber 10 is buckled, and the operation portions 13b of the operation knob 13 are not buckled. , 13c are elastically contacted with the pressure receiving portions 11a, 12a of the cams 11, 12 by the elastic force of the click rubber 10, and the fixed contacts 4, 5, 6, 7 and the movable contacts 22d, 23d, 24d, 25d are separated from each other. It is kept off.
[0026]
In this state, when the operation knob 13 is pressed to rotate the operation knob 13 forward, the pressing force is transmitted to the hollow convex portions 22 and 23 of the click rubber 10 via the cam 11 as shown in FIG. You. In this case, since the operation portion 13c formed on the operation knob 13 is separated from the pressure receiving portion 12a of the cam 12, the pressing force of the operation knob 13 is not transmitted to the hollow convex portions 24 and 25 of the click rubber 10. . Since the operating portion 13b formed on the operating knob 13 is in contact with the cam 11 at a position biased toward the pressing portion 11b, a larger pressing force acts on the hollow convex portion 22 than the hollow convex portion 23. As shown in FIG. 6, the hollow convex portion 22 is buckled before the hollow convex portion 23. As a result, the fixed contact 4 formed on the circuit board 8 comes into contact with the movable contact 22 d set in the hollow projection 22, and the fixed contact 4 is made conductive, and the fixed contact 4 is made conductive from the external connection terminal 3. Switch-on signal is output. This switch-on signal is used as a drive signal for operating the window in the closing direction when the switch device according to the present embodiment is applied as an operation switch of an in-vehicle power window device. When the hollow convex portion 22 is buckled, the click feeling accompanying the buckling is transmitted to the operation knob 13 via the cam 11, so that the operator knows that the fixed contact 4 can be selectively turned on by blind touch. be able to.
[0027]
In this state, when the application of the pressing force to the operation knob 13 is stopped, the cam 11 and the operation knob 13 are pushed up by the restoring force of the elastic deformation portion 22b formed in the hollow convex portion 22, and the initial state shown in FIGS. Returns to the state. As a result, the contact between the fixed contact 4 and the movable contact 22d is released, and a switch-off signal due to the interruption of conduction of the fixed contact member 4 is output from the external connection terminal 3. This switch-off signal is used as a drive signal for stopping a window closing operation when the switch device according to the present embodiment is applied as an operation switch of a vehicle-mounted power window device.
[0028]
Further, when the operation knob 13 is further pushed in further from the state of FIGS. 5 and 6, as shown in FIGS. 7 and 8, the hollow convex portion 22 and the hollow convex portion 23 are buckled together by the pressing force, The fixed contact 4 comes in contact with the movable contact 22d to make the fixed contact 4 conductive, and the fixed contact 5 comes in contact with the movable contact 23d to make the fixed contact 5 conductive. In addition, a switch-on signal accompanying the conduction of the fixed contact 5 is output. This switch-on signal is used as a drive signal for fully closing the window when the switch device according to the embodiment is applied as an operation switch of a vehicle-mounted power window device. When the hollow convex portion 22 and the hollow convex portion 23 are buckled, the click sensation accompanying the buckling is transmitted to the operation knob 13 via the cam 11, so that the operator simultaneously turns on the fixed contacts 4 and 5 simultaneously. You can know what you can do with a blind touch.
[0029]
When the application of the operating force to the operation knob 13 is stopped in this state, the cam 11 is restored by the restoring force of the elastically deforming portion 22b formed on the hollow convex portion 22 and the restoring force of the elastically deforming portion 23b formed on the hollow convex portion 23. Then, the operation knob 13 is pushed up to return to the initial state shown in FIGS.
[0030]
On the other hand, when the operation knob 13 is rotated clockwise from the state of FIGS. 3 and 4, the pressing force is transmitted to the hollow convex portions 24 and 25 of the click rubber 10 via the cam 12. In this case, since the operating portion 13b formed on the operating knob 13 is separated from the pressure receiving portion 11a of the cam 11, the pressing force of the operating knob 13 is not transmitted to the hollow convex portions 22, 23 of the click rubber 10. . Since the operation portion 13c formed on the operation knob 13 is in contact with the cam 12 at a position biased toward the pressing portion 12b, a larger pressing force acts on the hollow convex portion 24 than the hollow convex portion 25. The hollow convex portion 24 is buckled before the hollow convex portion 25. As a result, the fixed contact 6 formed on the circuit board 8 comes into contact with the movable contact 24 d set in the hollow projection 24, and the fixed contact 6 is made conductive, and the fixed contact 6 is made conductive from the external connection terminal 3. Switch-on signal is output. This switch-on signal is used as a drive signal for operating the window in the opening direction when the switch device according to the present embodiment is applied as an operation switch of an in-vehicle power window device. When the hollow convex portion 24 is buckled, the click sensation accompanying the buckling is transmitted to the operation knob 13 via the cam 12, so that the operator can know by blind touch that the fixed contact 6 can be selectively turned on. be able to.
[0031]
When the application of the pressing force to the operation knob 13 is stopped from this state, the cam 12 and the operation knob 13 are pushed up by the restoring force of the elastic deformation portion 24b formed in the hollow convex portion 24, and the initial state shown in FIGS. Return to the state. As a result, the contact between the fixed contact 6 and the movable contact 24d is released, and a switch-off signal due to the interruption of conduction of the fixed contact member 6 is output from the external connection terminal 3. This switch-off signal is used as a drive signal for stopping the opening operation of the window when the switch device according to the present embodiment is applied as an operation switch of an in-vehicle power window device.
[0032]
Further, when the operating knob 13 is further pushed in further from the state where the hollow convex portion 24 is buckled, the pressing force causes the hollow convex portion 24 and the hollow convex portion 25 to buckle together, and the fixed contact 6 and the movable contact 24 d And the fixed contact 6 is conducted, and the fixed contact 7 and the movable contact 25d are brought into contact with each other to conduct the fixed contact 7, and the external connection terminal 3 conducts the conduction of the fixed contact 6 and the conduction of the fixed contact 7. The accompanying switch-on signal is output. This switch-on signal is used as a drive signal for fully opening a window when the switch device according to the embodiment is applied as an operation switch of a vehicle-mounted power window device. When the hollow convex portion 24 and the hollow convex portion 25 are buckled, a click feeling accompanying the buckling is transmitted to the operation knob 13 via the cam 12, so that the operator simultaneously turns on the fixed contact 6 and the fixed contact 7. You can know what you can do with a blind touch.
[0033]
When the application of the operating force to the operation knob 13 is stopped in this state, the cam 12 is restored by the restoring force of the elastic deformation portion 24b formed in the hollow projection 24 and the elastic deformation portion 25b formed in the hollow projection 25. Then, the operation knob 13 is pushed up to return to the initial state shown in FIGS.
[0034]
Note that the case where the operation knob 13 is rotated clockwise from the state of FIGS. 3 and 4 can be easily estimated from FIGS.
[0035]
In the switch device according to the present embodiment, the cams 11 and 12 have protrusions 11 d, 11 e, 12 d and 12 e formed therein, and the recesses 22 e and 23 e are formed on the top surfaces of the hollow protrusions 22, 23, 24 and 25 of the click rubber 10. , 24e and 25e, the rigidity of the convex portion can be remarkably increased as compared with the case where the convex portion is formed in the flexible hollow convex portion and the hole is opened in the high rigidity cam, and the concave portions 22e and 23e are formed. , 24e, 25e can be easily and reliably engaged with the projections 11d, 11e, 12d, 12e. Therefore, it is possible to easily assemble the cams 11 and 12 with respect to the click rubber 10, and to prevent the cams 11 and 12 from dropping during the assembling and the displacement between the click rubber 10 and the cams 11 and 12. It is possible to prevent the problem and maintain good assemblability.
[0036]
Further, the switch device according to the present embodiment sets the operation knob 13 to be swingable with respect to the case 2 and operates the operation knob 13 when the operation knob 13 is operated in the first swing direction from the neutral position. A first cam 11, two hollow projections pressed by the first cam 11, a second cam 12 which is operated when the operation knob 13 is operated in the second swing direction from the neutral position. And two hollow projections pressed by the second cam 12, so that the first and second switch signals can be output by operating the operation knob 13 in the first swing direction. The third and fourth switch signals can be output by operating the operation knob 13 in the second swing direction. Therefore, by using these first to fourth switch signals as, for example, an open drive signal, a fully open drive signal closed drive signal, and a fully closed drive signal of an in-vehicle power window, a switch device applicable to an in-vehicle power window device is provided. It can be.
[0037]
Further, in the switch device according to the present embodiment, the pressing force accompanying the swinging operation of the operation knob 13 acts on a position biased to one end side from the center position of the cams 11 and 12, so that the cams 11 and 12 are suspended. The two hollow projections 22, 23 or 24, 25 are not buckled at the same time, and the hollow projections 22, 24 receiving a greater pressing force are preferentially buckled, and then the other hollow projection 23, , 25 are buckled. Therefore, by changing the operation direction and the operation amount of the operation knob 13, four types of switch signals can be taken out, and these four types of switch signals are used as, for example, an open drive signal of a vehicle-mounted power window, a fully open drive signal, and a close drive signal. By using it as a fully closed drive signal, a switch device applicable to an in-vehicle power window device can be provided.
[0038]
In the switch device according to the present embodiment, the LED 9 is mounted on the wiring board 8 and the light transmitting portion 26 for transmitting the light emitted from the LED 9 is formed on the click rubber 10. And the like can be represented by light, and a switch device that is easy to use in a dark portion can be provided.
[0039]
In the above embodiment, the swing type switch device in which the operation knob 13 is set to be swingable on the case 2 is described as an example, but the operation knob 13 is set to be slidable on the case 2. It can also be applied to switch devices of the form.
[0040]
【The invention's effect】
As described above, in the switch device of the present invention, the convex portion is formed on the cam, and the concave portion is formed on the top surface of the hollow convex portion of the click rubber. The rigidity of the convex portion can be significantly increased as compared with a case where a concave portion or an opening for firmly fitting the convex portion with the rigid cam is provided. On the other hand, since the concave portion is flexible, the strength of the convex portion with respect to the concave portion is increased. Fitting can be performed easily and reliably. Accordingly, it is possible to easily assemble the cam with the click rubber, and to prevent the cam being assembled from falling off or causing a positional shift between the click rubber and the cam, thereby maintaining good assemblability. be able to.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a switch device according to an embodiment.
FIG. 2 is an enlarged sectional view of a main part showing a connection state between a click rubber and a cam provided in the switch device according to the embodiment.
FIG. 3 is a side view of the switch device according to the embodiment as viewed from one direction.
FIG. 4 is a side view of the switch device according to the embodiment as viewed from another direction.
FIG. 5 is a side view showing a first operation state of the switch device according to the embodiment, as viewed from one direction.
FIG. 6 is a side view showing a first operation state of the switch device according to the embodiment as viewed from another direction.
FIG. 7 is a side view showing a second operation state of the switch device according to the embodiment, as viewed from one direction.
FIG. 8 is a side view showing a second operation state of the switch device according to the embodiment, as viewed from another direction.
FIG. 9 is a cross-sectional view of a conventional switch device in a non-operation state.
[Explanation of symbols]
1 Cover
2 cases
3 External connection terminal
4,5,6,7 Fixed contacts
8 Circuit board
9 LED
10 Click rubber
11,12 cam
11d, 11e, 12d, 12e convex
13 Operation knob
22,23,24,25 hollow convex part
22d, 23d, 24d, 25d movable contact
22e, 23e, 24e, 25e recess

Claims

A wiring board on which a fixed contact group is formed, a click rubber formed with a hollow convex portion having a movable contact group corresponding to each of the fixed contact groups, and a cam suspended by a plurality of the hollow convex portions, An operation knob for applying a pressing force to the hollow convex portion of the click rubber through the cam to selectively intermittently connect and disconnect the fixed contact in the fixed contact group and the movable contact in the movable contact group; The click rubber and the cam are formed by forming a concave portion on the top surface of the convex portion and forming a convex portion that can be fitted into the concave portion on the cam and firmly fitting the convex portion into the concave portion. A switch device which is connected.

A first cam which is set when the operation knob is set to be swingable, and which is operated when the operation knob is operated from a neutral position in a first swing direction, and two first cams which are pressed by the first cam; A hollow convex portion, a second cam operated when the operation knob is operated in a second swing direction from a neutral position, and two hollow convex portions pressed by the second cam. The switch device according to claim 1, wherein:

The pressing force of the operation knob is applied to a position deviated to one end side from the center position of the cam, and the plurality of hollow convex portions on which the cam is suspended are sequentially seated according to the amount of pushing operation of the operation knob. The switch device according to claim 1, wherein the switch device is bent.

2. The switch device according to claim 1, wherein an LED is mounted on the wiring board, and a light transmitting portion for transmitting light emitted from the LED is formed on the click rubber. 3.