JP2004146069A

JP2004146069A - Two-stage action see-saw switching device

Info

Publication number: JP2004146069A
Application number: JP2002306032A
Authority: JP
Inventors: Shinji Komatsu; 小松　慎二; Ruriko Yusa; 遊佐　るり子
Original assignee: Alps Electric Co Ltd
Current assignee: Alps Alpine Co Ltd
Priority date: 2002-10-21
Filing date: 2002-10-21
Publication date: 2004-05-20

Abstract

<P>PROBLEM TO BE SOLVED: To provide a two-stage action sea-saw switching device which it is easy to make compact and reduce cost. <P>SOLUTION: The device is provided with an operation knob 2 which can oscillate, an actuating plate 5 pressure-driven by the operation knob 2 through a drive part 3 or 4, a first and a second push switches 10a, 10b supporting both ends of the actuating plate 5, and a third push switch supporting a middle part 5c of the actuating plate 5. The drive part 3 is brought into contact with a part nearer to the push switch 10a than the push switch 10c of the actuating plate 5, and the drive part 4 is made in contact with a part nearer to the push switch 10b than the push switch 10c of the actuating plate. Further, the actuating plate 5 is to have formed a first and a second elastic parts 5d, 5e connecting the middle part 5c with each extended part 5a, 5b and a first and a second pressing power transmitting parts 5f, 5g protruded from each extended part 5a, 5b toward a bent part 5c. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、自動車のパワーウィンドウ用スイッチなどとして好適で、揺動可能に支持された操作ノブの傾倒角度に応じて１段目および２段目の電気信号を出力する２段動作シーソースイッチ装置に関する。
【０００２】
【従来の技術】
この種の２段動作シーソースイッチ装置としては、従来、揺動可能に支持された操作ノブと、駆動部を介して操作ノブからの押圧力が付与される一対の作動板と、各作動板を支持する２個１組、計４個のプッシュスイッチとを備え、操作ノブの傾倒方向に応じていずれか一方の作動板が押圧駆動されて傾倒し、その傾倒した作動板によってプッシュスイッチが作動されるという構成のものが提案されている（例えば、特許文献１参照）。かかる従来のシーソースイッチ装置は、操作ノブの揺動中心線までの距離が異なる位置に２個１組のプッシュスイッチを配設して、両プッシュスイッチを結ぶ直線を該揺動中心線に対して斜めに交差させると共に、平面視略平行四辺形の作動板の相対向する隅部２箇所を両プッシュスイッチにて支持することにより、操作ノブの傾倒角度に応じてこれら２個のプッシュスイッチが順次作動されるようになっている。
【０００３】
すなわち、操作者が操作ノブを傾倒操作して片側を下降させると、その下方に位置する駆動部が押し込まれて下降していき、対応する作動板が操作ノブの揺動中心線に近いプッシュスイッチを支点として傾倒するため、該揺動中心線から遠いプッシュスイッチが該作動板に押し込まれてオン動作する。この状態で操作ノブをさらに傾倒させて駆動部をさらに下降させると、今度は、該揺動中心線から遠いオン状態のプッシュスイッチを支点として作動板が傾倒するため、該揺動中心線に近いプッシュスイッチが該作動板に押し込まれてオン動作する。また、任意のプッシュスイッチをオン動作させた後、操作ノブに対する操作力を取り除くと、作動板に押し込まれていた該プッシュスイッチの復帰力によって該作動板が押し上げられるため、操作ノブは中立位置へ押し戻され、該プッシュスイッチはオフ状態に復帰する。なお、この従来提案では各プッシュスイッチを、基板上に配設した固定接点と、この固定接点に接離する可動接点を設けて座屈変形可能なクリックゴムとによって構成しており、このクリックゴムの頂部で作動板を支持し、操作時にクリックゴムが作動板に押し込まれて座屈変形するとクリック感を生起して可動接点と固定接点とが接触するようになっている。
【０００４】
かかる従来の２段動作シーソースイッチ装置は、４個のプッシュスイッチを比較的コンパクトに配設することができて操作感触も良好なため、自動車のパワーウィンドウ用スイッチなどとして好適である。その場合、一方の作動板によって作動される２個のプッシュスイッチが窓を開ける電気信号を出力し、他方の作動板によって作動される残り２個のプッシュスイッチが窓を閉める電気信号を出力することとし、かつ、操作ノブの揺動中心線から遠いプッシュスイッチはオン動作している間だけ開信号または閉信号を出力し、該揺動中心線に近いプッシュスイッチはオン動作すると窓を全開または全閉させる信号を出力するように設定しておけばよい。これにより、操作者は、操作ノブを浅い角度で傾倒させることによって窓を任意量だけ開閉するマニュアル操作が行え、操作ノブを深い角度で傾倒させることによって窓を自動的に全開全閉するオート操作が行える。
【０００５】
【特許文献１】
特開平８−１１１１４２号公報（第３〜５頁）
【０００６】
【発明が解決しようとする課題】
上述した従来の２段動作シーソースイッチ装置は、２個１組のプッシュスイッチを結ぶ直線を操作ノブの揺動中心線に対して斜めに交差させる等の工夫を施すことにより、ある程度のコンパクト化を実現してはいるが、さらなるコンパクト化や部品点数削減による低コスト化の要望に応えることは困難であった。
【０００７】
本発明は、このような従来技術の実情に鑑みてなされたもので、その目的は、コンパクト化および低コスト化が促進しやすい２段動作シーソースイッチ装置を提供することにある。
【０００８】
【課題を解決するための手段】
上述した目的を達成するため、本発明の２段動作シーソースイッチ装置では、揺動可能に支持された操作ノブと、この操作ノブの傾倒方向に対応して一対設けられた昇降可能な駆動部と、中間部の両側に第１の延出部と第２の延出部を設けてなり前記駆動部を介して前記操作ノブに押圧駆動される作動板と、この作動板の前記第１の延出部の先端部を支持する第１のプッシュスイッチと、前記作動板の前記第２の延出部の先端部を支持する第２のプッシュスイッチと、前記作動板の前記中間部を支持する第３のプッシュスイッチとを備え、かつ前記作動板が、前記中間部と前記第１の延出部とを連結する第１の弾性部と、前記第１の延出部から前記中間部側へ突設されて、前記操作ノブの押圧力で該第１の延出部が前記第１のプッシュスイッチを支点として傾倒されるときに該中間部を押圧駆動する第１の押圧力伝達部と、前記中間部と前記第２の延出部とを連結する第２の弾性部と、前記第２の延出部から前記中間部側へ突設されて、前記操作ノブの押圧力で該第２の延出部が前記第２のプッシュスイッチを支点として傾倒されるときに該中間部を押圧駆動する第２の押圧力伝達部とを有しており、一方の前記駆動部が、前記第１の延出部のうち前記第３のプッシュスイッチよりも前記第１のプッシュスイッチに近い部分に前記操作ノブからの押圧力を付与し、該駆動部が所定量下降する過程で前記第１の延出部が傾倒して前記第１のプッシュスイッチを作動させ、該駆動部がさらに下降する過程で前記第１の押圧力伝達部が前記中間部を介して前記第３のプッシュスイッチを作動させると共に、他方の前記駆動部が、前記第２の延出部のうち前記第３のプッシュスイッチよりも前記第２のプッシュスイッチに近い部分に前記操作ノブからの押圧力を付与し、該駆動部が所定量下降する過程で前記第２の延出部が傾倒して前記第２のプッシュスイッチを作動させ、該駆動部がさらに下降する過程で前記第２の押圧力伝達部が前記中間部を介して前記第３のプッシュスイッチを作動させるように構成した。
【０００９】
このように構成されるシーソースイッチ装置は、操作ノブを傾倒操作するといずれか一方の駆動部が下降して、作動板の一端または他端に近い部分に操作ノブからの押圧力を付与する。例えば、操作ノブの傾倒操作によって、一方の駆動部が作動板のうち第１の延出部の第３のプッシュスイッチよりも第１のプッシュスイッチに近い部分に操作ノブからの押圧力を付与する場合、作動板の第１の延出部はまず第３のプッシュスイッチを支点として傾倒するため第１のプッシュスイッチがオン動作し、この状態で操作ノブをさらに傾倒させると、今度はオン状態の第１のプッシュスイッチを支点として作動板が傾倒するため第３のプッシュスイッチがオン動作する。また、操作ノブを逆向きに傾倒操作して、他方の駆動部が作動板のうちの第２の延出部の第３のプッシュスイッチよりも第２のプッシュスイッチに近い部分に操作ノブからの押圧力を付与する場合にも同様に、まず第３のプッシュスイッチ側を支点として作動板の第２の延出部が傾倒して第２のプッシュスイッチがオン動作し、この状態で操作ノブをさらに傾倒させると第２のプッシュスイッチを支点として作動板が傾倒して第３のプッシュスイッチがオン動作する。したがって、共通の作動板に押圧駆動される３個のプッシュスイッチによって、第１のプッシュスイッチだけがオン状態のときに出力される信号と、第１および第３のプッシュスイッチが共にオン状態のときに出力される信号と、第２のプッシュスイッチだけがオン状態のときに出力される信号と、第２および第３のプッシュスイッチが共にオン状態のときに出力される信号という計４種類の電気信号を取り出すことができる。つまり、操作ノブの傾倒方向および傾倒角度に応じた４種類の電気信号が出力可能なシーソースイッチ装置を、少ない部品点数で実現することができ、プッシュスイッチおよび作動板の数が減らせるためコンパクト化も図りやすくなる。
【００１０】
しかも、操作ノブからの押圧力によって第１の延出部が第３のプッシュスイッチ側を支点として傾倒されるときには、第１の弾性部が弾性変形するので屈曲部には操作ノブからの押圧力が伝達されにくく、それゆえ第１のプッシュスイッチを作動させるときに第３のプッシュスイッチを誤作動させてしまう心配はない。また、最初にオン動作させた第１のプッシュスイッチを支点として第１の延出部が傾倒されるときには、第１の押圧力伝達部によって屈曲部を確実に押し込んで第３のプッシュスイッチを作動させることができると共に、第２の弾性部が弾性変形するので第２の延出部の先端部には操作ノブからの押圧力が伝達されにくく、それゆえ第２のプッシュスイッチを誤作動させてしまう心配はない。なお、この一連の動作は第２の延出部を傾倒させるときにも基本的に同等である。
【００１１】
かかる構成において、作動板が平面視略く字形であって、第３のプッシュスイッチを第１および第２のプッシュスイッチを結ぶ直線からずらして配置した場合には、三角形状の狭い領域内に作動板や各プッシュスイッチを配設することができてコンパクト化に有利であると共に、作動板の第１の延出部と第２の延出部との間に操作ノブの底面と対向するスペースが容易に確保できるため、第３のプッシュスイッチの側方に該スペースに臨出する照光体を設けることによって、照光タイプの２段動作シーソースイッチ装置を無理なく実現することができる。
【００１２】
あるいは、かかる構成において、作動板が前記中間部と前記第１および第２の延出部とを平面視一直線上に並べた形状であって、第１、第２および第３のプッシュスイッチを一直線上に配置した場合には、幅狭な領域内に作動板や各プッシュスイッチを配設することができるため、幅狭な２段動作シーソースイッチ装置が実現できる。
【００１３】
また、各プッシュスイッチが、固定接点と、この固定接点に接離する可動接点を設けて座屈変形可能なクリックゴムとを有し、このクリックゴムの頂部を作動板に係合させる構成とすれば、明瞭なクリック感と十分な復帰力が得られる安価なプッシュスイッチとなり、組立性も良好となるため好ましい。
【００１４】
【発明の実施の形態】
発明の実施の形態について図面を参照して説明すると、図１は本発明の一実施形態例に係る２段動作シーソースイッチ装置の斜視図、図２は該スイッチ装置の側面図、図３は該スイッチ装置の平面図、図４は該スイッチ装置に用いた作動板を示す図であり、図４（ａ）は斜視図、図４（ｂ）は平面図、図４（ｃ）は側面図である。また、図５〜図７は該スイッチ装置の動作説明図であり、図５は非操作時の状態、図６は１段目のスイッチオン状態、図７は２段目のスイッチオン状態をそれぞれ示している。
【００１５】
これらの図に示す２段動作シーソースイッチ装置は、自動車のパワーウィンドウ用スイッチとして使用されるものである。このシーソースイッチ装置は、外殻を形成するケーシング１と、このケーシング１上で図示せぬ支軸に揺動可能に支持された操作ノブ２と、この操作ノブ２の傾倒方向に対応して一対設けられた昇降可能な駆動部３，４と、駆動部３または駆動部４を介して操作ノブ２に押圧駆動される平面視略く字形の作動板５と、クリックゴム６ａ〜６ｃが突設されているゴムシート６と、このゴムシート６を載置している基板７とによって主に構成されている。
【００１６】
図２に示すように、各クリックゴム６ａ〜６ｃの天井面には可動接点８が設けられており、基板７上には各可動接点８と対向する位置に固定接点９が設けられている。各可動接点８は、保持体であるクリックゴムが座屈変形すると下方の固定接点９と接触するので、対応する可動接点８と固定接点９とによってプッシュスイッチの接点部が構成されている。つまり、クリックゴム６ａを保持体とする第１のプッシュスイッチ１０ａと、クリックゴム６ｂを保持体とする第２のプッシュスイッチ１０ｂと、クリックゴム６ｃを保持体とする第３のプッシュスイッチ１０ｃとが、基板７上に配置されて、各クリックゴム６ａ〜６ｃの頂部が、作動板５の３箇所に設けられた係合孔１１内に挿入されて係合している。
【００１７】
この作動板５は、一体成形品ではあるが一枚板ではなく、中間部５ｃとその片側に延出する第１の延出部５ａとが、半円筒形状の肉薄な第１の弾性部１５ｄによって弾性的に連結されていると共に、中間部５ｃとその他側に延出する第２の延出部５ｂとが、半円筒形状の肉薄な第２の弾性部１５ｅによって弾性的に連結されている。また、この作動板５には、第１の延出部５ａの上面から中間部５ｃ側へ突設され中間部５ｃの上面と接する下面を備えた第１の押圧力伝達部５ｆと、第２の延出部５ｂの上面から中間部５ｃ側へ突設され中間部５ｃの上面と接する下面を備えた第２の押圧力伝達部５ｇとが形成されている。そして、第１の延出部５ａの先端部が第１のプッシュスイッチ１０ａの頂部と係合して支持され、かつ第２の延出部５ｂの先端部が第２のプッシュスイッチ１０ｂの頂部と係合して支持され、かつ中間部５ｃが第３のプッシュスイッチ１０ｃの頂部と係合して支持されている。なお、作動板５は平面視略く字形であり、第３のプッシュスイッチ１０ｃは、第１および第２のプッシュスイッチ１０ａ，１０ｂを結ぶ直線からずらした位置に配置されている。また、基板７上には第３のプッシュスイッチ１０ｃの側方に、ゴムシート６の開口部１２内に露出する照光体（ＬＥＤ）１３が実装してあり、この照光体１３は作動板５の第１の延出部５ａと第２の延出部５ｂとの間に臨出している。
【００１８】
操作ノブ２は、前記支軸の軸心である揺動中心線Ｌを中心に揺動可能であり、図２の時計回り方向と反時計回り方向へ回転操作されて傾倒する。そして、操作ノブ２が時計回り方向へ回転操作されて傾倒すると一方の駆動部３が押し込まれて下降し、操作ノブ２が反時計回り方向へ回転操作されて傾倒すると他方の駆動部４が押し込まれて下降するようになっている。ここで、一方の駆動部３の下端は、作動板５のうちの第１の延出部５ａの上面に当接されているが、この当接位置は第３のプッシュスイッチ１０ｃよりも第１のプッシュスイッチ１０ａに近い。他方の駆動部４の下端は、作動板５のうちの第２の延出部５ｂの上面に当接しているが、この当接位置は第３のプッシュスイッチ１０ｃよりも第２のプッシュスイッチ１０ｂに近い。したがって、操作ノブ２が傾倒操作されて駆動部３が下降すると、作動板５のうち第１の延出部５ａの上面の前記当接位置に操作ノブ２からの押圧力が付与され、また、操作ノブ２が逆向きに傾倒操作されて駆動部４が下降すると、作動板５のうち第２の延出部５ｂの上面の前記当接位置に操作ノブ２からの押圧力が付与されることになる。
【００１９】
次に、このように構成される２段動作シーソースイッチ装置の動作を図５〜図７を用いて説明する。操作ノブ２に対して図５の時計回りに回転する傾倒操作が行われると、駆動部３が操作ノブ２に押し込まれて下降するので、作動板５の第１の延出部５ａが、モーメント力の差により第３のプッシュスイッチ１０ｃを支点として図６に示すように傾倒していく。このとき、第１の弾性部５ｄが弾性変形するので、屈曲部５ｃには操作ノブ２の押圧力は伝達されにくい。そして、駆動部３が所定量下降するとクリックゴム６ａが第１の延出部５ａの先端部に押し込まれて座屈変形し、第１のプッシュスイッチ１０ａがオン動作する。また、こうして第１のプッシュスイッチ１０ａをオン動作させた後、操作ノブ２に対する操作力を取り除けば、座屈変形していたクリックゴム６ａが自身の弾性で元の形状に戻るので、第１の延出部５ａや駆動部３が押し上げられて操作ノブ２は図５に示す中立位置に復帰し、第１のプッシュスイッチ１０ａはオフ状態となる。本実施形態例においては、第１のプッシュスイッチ１０ａがオン状態のとき、窓を開ける電気信号が出力されるようにしてあるので、第１のプッシュスイッチ１０ａをオン／オフさせることによって操作者は任意量だけ窓を開けるマニュアル操作が行える。
【００２０】
また、第１のプッシュスイッチ１０ａをオン動作させた状態で操作ノブ２をさらに傾倒させると、駆動部３がさらに下降するため、第１の延出部５ａはオン状態の第１のプッシュスイッチ１０ａを支点として横臥するように傾倒していき、その過程で第１の押圧力伝達部５ｆが屈曲部５ｃを上から押し込んでいく。それゆえ、操作ノブ２を所定角度以上傾倒させることによって、図７に示すように、第１の押圧力伝達部５ｆが屈曲部５ｃを介してクリックゴム６ｃを座屈変形させ、第３のプッシュスイッチ１０ｃがオン動作する。このとき、第２の弾性部５ｅが弾性変形するので、第２の延出部５ｂには操作ノブ２の押圧力が伝達されにくい。本実施形態例においては、第１および第３のプッシュスイッチ１０ａ，１０ｃが共にオン状態になると、窓を全開させる電気信号が出力されるようにしてあるので、操作者は操作ノブ２を図５の時計回り方向へ大きく回転させて第３のプッシュスイッチ１０ｃをオン動作させることにより、自動的に窓を全開させるオート操作が行える。なお、第３のプッシュスイッチ１０ｃをオン動作させた後に操作ノブ２に対する操作力を取り除けば、座屈変形していたクリックゴム６ａ，６ｃが自身の弾性で元の形状に戻るので、作動板５や駆動部３が押し上げられて操作ノブ２は図５に示す中立位置に復帰し、第１および第３のプッシュスイッチ１０ａ，１０ｃは共にオフ状態となる。
【００２１】
操作ノブ２に対して図５の反時計回りに回転する傾倒操作が行われた場合の動作も基本的に同等であり、操作ノブ２に押し込まれた駆動部４が下降する過程で、第２の弾性部５ｅを弾性変形させながら第２の延出部５ｂが第３のプッシュスイッチ１０ｃを支点として傾倒していき、該延出部５ｂの先端部によって第２のプッシュスイッチ１０ｂがオン動作されるので、操作者は任意量だけ窓を閉めるマニュアル操作が行える。また、この状態で操作ノブ２をさらに傾倒させると、第２のプッシュスイッチ１０ｂを支点として第２の延出部５ｂが横臥するように傾倒していき、第１の弾性部５ｄを弾性変形させながら第２の押圧力伝達部５ｇが屈曲部５ｃを上から押し込んでいくので、第３のプッシュスイッチ１０ｃがオン動作され、これにより操作者は自動的に窓を全閉させるオート操作が行える。
【００２２】
上述したように本実施形態例に係る２段動作シーソースイッチ装置は、共通の作動板５に押圧駆動される３個のプッシュスイッチ１０ａ〜１０ｃによって、第１のプッシュスイッチ１０ａだけがオン状態のときに出力される信号と、第１および第３のプッシュスイッチ１０ａ，１０ｃが共にオン状態のときに出力される信号と、第２のプッシュスイッチ１０ｂだけがオン状態のときに出力される信号と、第２および第３のプッシュスイッチ１０ｂ，１０ｃが共にオン状態のときに出力される信号という計４種類の電気信号を取り出すことができる。つまり、操作ノブ２の傾倒方向および傾倒角度に応じた４種類の電気信号が出力可能なシーソースイッチ装置を、少ない部品点数で実現することができるため、低コスト化が図りやすい。しかも、作動板５が平面視略く字形で、３個のプッシュスイッチ１０ａ〜１０ｃを狭い領域内に配設できるため、コンパクト化も図りやすい。また、第３のプッシュスイッチ１０ｃの側方に、作動板５の第１の延出部５ａと第２の延出部５ｂとの間のスペースに臨出する照光体１３が設けてあるので、コンパクト化を損なうことなく照光タイプの２段動作シーソースイッチ装置が無理なく実現されている。
【００２３】
また、この２段動作シーソースイッチ装置は一枚板でない作動板５を用いているので、操作ノブ２からの押圧力によって第１の延出部５ａや第２の延出部５ｂが第３のプッシュスイッチ１０ｃを支点として傾倒されるときに、第１の弾性部５ｄや第２の弾性部５ｅが弾性変形して屈曲部５ｃに操作ノブ２からの押圧力が伝達されにくくなっており、それゆえ第１のプッシュスイッチ１０ａや第２のプッシュスイッチ１０ｂを作動させるときに第３のプッシュスイッチ１０ｃを誤作動させてしまう心配がない。また、オン動作させた第１のプッシュスイッチ１０ａや第２のプッシュスイッチ１０ｂを支点として第１の延出部５ａや第２の延出部５ｂが傾倒されるときには、第１の押圧力伝達部５ｆや第２の押圧力伝達部５ｇによって屈曲部５ｃを確実に押し込んで第３のプッシュスイッチ１０ｃを作動させることができると共に、弾性部５ｅまたは５ｄが弾性変形するため、残余のプッシュスイッチ１０ｂまたは１０ａには操作ノブ２からの押圧力が伝達されにくくて誤作動の心配がない。
【００２４】
なお、本実施形態例のようにプッシュスイッチ１０ａ〜１０ｃとして、可動接点８を設けたクリックゴム６ａ〜６ｃを採用し、各クリックゴム６ａ〜６ｃの頂部を作動板５の係合孔１１に係合させる構成とすれば、明瞭なクリック感と十分な復帰力が得られる安価なプッシュスイッチとなり、組立性も良好となるため好ましい。
【００２５】
図８は本発明の他の実施形態例に係る作動板を示す図であり、図８（ａ）は平面図、図８（ｂ）は側面図である。同図に示す作動板１５は、中間部１５ｃと第１および第２の延出部１５ａ，１５ｂとが平面視一直線上に並べてある点が、前記実施形態例と大きく異なる。ただし、この作動板１５にも、中間部１５ｃと第１の延出部１５ａとを連結する第１の弾性部１５ｄや、中間部１５ｃと第２の延出部１５ｂとを連結する第２の弾性部１５ｅや、第１の延出部１５ａから中間部１５ｃ側へ突設された第１の押圧力伝達部１５ｆや、第２の延出部１５ｂから中間部１５ｃ側へ突設された第２の押圧力伝達部１５ｇは形成されているので、操作ノブ２の押圧力で第１の延出部１５ａが第１のプッシュスイッチ１０ａを支点として傾倒されるときに第１の押圧力伝達部１５ｆが中間部１５ｃを押圧駆動し、また、操作ノブ２の押圧力で第２の延出部１５ｂが第２のプッシュスイッチ１０ｂを支点として傾倒されるときに第２の押圧力伝達部１５ｇが中間部１５ｃを押圧駆動する。
【００２６】
このような作動板１５を採用すると、第１、第２および第３のプッシュスイッチ１０ａ，１０ｂ，１０ｃを一直線上に配置することができるので、幅狭な領域内に作動板１５や各プッシュスイッチ１０ａ〜１０ｃを配設することができる。してがって、幅狭でコンパクトな２段動作シーソースイッチ装置が容易に実現できる。
【００２７】
なお、前記実施形態においては、プッシュスイッチがクリックゴムを保持体とする例を説明したが、プッシュスイッチはこれに限定されるものではなく、クリック感触を付与できるものであれば公知に属する任意のプッシュスイッチを用いることができる。
【００２８】
【発明の効果】
本発明は、以上説明したような形態で実施され、以下に記載されるような効果を奏する。
【００２９】
共通の作動板に押圧駆動される３個のプッシュスイッチによって４種類の電気信号を取り出すことができるので、操作ノブの傾倒方向および傾倒角度に応じた４種類の電気信号が出力可能な２段動作シーソースイッチ装置を少ない部品点数で実現することができて低コスト化に有利となり、プッシュスイッチおよび作動板の数が減らせるためコンパクト化も促進しやすくなる。また、一枚板でない作動板を用いており、その弾性部の弾性変形によってプッシュスイッチの誤作動が防止できるため、高い信頼性が確保されている。
【００３０】
また、作動板の第１および第２の延出部と中間部を平面視略く字形に並べた場合には、両延出部の間に臨出する照光体を第３のプッシュスイッチの側方に設けることによって、照光タイプの２段動作シーソースイッチ装置が無理なく実現できる。
【００３１】
また、作動板の第１および第２の延出部と中間部を平面視一直線上に並べた場合には、幅狭な領域内に作動板や各プッシュスイッチを配設することができるので、幅狭でコンパクトな２段動作シーソースイッチ装置が無理なく実現できる。
【図面の簡単な説明】
【図１】本発明の一実施形態例に係る２段動作シーソースイッチ装置を示す斜視図である。
【図２】図１のシーソースイッチ装置の側面図である。
【図３】図１のシーソースイッチ装置の平面図である。
【図４】図１のシーソースイッチ装置に用いた作動板を示す図である。
【図５】図１のシーソースイッチ装置の非操作時の状態を示す動作説明図である。
【図６】図１のシーソースイッチ装置の１段目のスイッチオン状態を示す動作説明図である。
【図７】図１のシーソースイッチ装置の２段目のスイッチオン状態を示す動作説明図である。
【図８】本発明の他の実施形態例に係る作動板を示す図である。
【符号の説明】
１　ケーシング
２　操作ノブ
３，４　駆動部
５，１５　作動板
５ａ，１５ａ　第１の延出部
５ｂ，１５ｂ　第２の延出部
５ｃ　中間部
５ｄ，１５ｄ　第１の弾性部
５ｅ，１５ｅ　第２の弾性部
５ｆ，１５ｆ　第１の押圧力伝達部
５ｇ，１５ｇ　第２の押圧力伝達部
６ａ〜６ｃ　クリックゴム
７　基板
８　可動接点
９　固定接点
１０ａ　第１のプッシュスイッチ
１０ｂ　第２のプッシュスイッチ
１０ｃ　第３のプッシュスイッチ
１１　係合孔
１５ｃ　中間部[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a two-stage seesaw switch device suitable for use as a power window switch or the like of an automobile and outputting first and second stage electric signals in accordance with the tilt angle of an operation knob that is swingably supported. .
[0002]
[Prior art]
Conventionally, as a two-stage operation seesaw switch device of this type, an operation knob supported so as to be swingable, a pair of operation plates to which a pressing force from the operation knob is applied via a driving unit, and each operation plate A pair of two supporting switches, a total of four push switches, and one of the operating plates is pressed and tilted according to the tilting direction of the operation knob, and the push switch is operated by the tilted operating plate. There has been proposed a configuration having such a configuration (see, for example, Patent Document 1). In such a conventional seesaw switch device, a pair of push switches is disposed at positions where the distance to the swing center line of the operation knob is different, and a straight line connecting both push switches is defined with respect to the swing center line. The two push switches are sequentially crossed diagonally, and the two opposing corners of the substantially parallelogram-shaped operating plate are supported by the two push switches, so that these two push switches are sequentially turned in accordance with the tilt angle of the operation knob. Activated.
[0003]
That is, when the operator tilts the operation knob to lower one side, the drive unit located below is pushed down and moves down, and the corresponding operation plate is pushed by a push switch close to the swing center line of the operation knob. As a result, the push switch far from the swing center line is pushed into the operation plate to turn on. In this state, when the operating knob is further tilted to further lower the drive unit, the operating plate is tilted with the on-state push switch distant from the swing center line as a fulcrum. The push switch is pushed into the operation plate to turn on. Further, when the operation force on the operation knob is removed after turning on any push switch, the operation plate is pushed up by the return force of the push switch pushed into the operation plate, so that the operation knob is moved to the neutral position. Pushed back, the push switch returns to the off state. In this conventional proposal, each push switch is constituted by a fixed contact disposed on a substrate and a click rubber which is provided with a movable contact which comes into contact with and separates from the fixed contact and is capable of buckling deformation. When the click rubber is pushed into the operation plate and buckled and deformed during operation, a click feeling is generated and the movable contact and the fixed contact come into contact with each other.
[0004]
Such a conventional two-stage operation seesaw switch device is suitable as a power window switch or the like of an automobile because four push switches can be relatively compactly arranged and the operation feeling is good. In that case, two push switches operated by one operation plate output an electric signal for opening the window, and the other two push switches operated by the other operation plate output an electric signal for closing the window. And a push switch far from the swing center line of the operation knob outputs an open signal or a close signal only while the switch is on, and a push switch near the swing center line opens or fully opens the window when the push switch is on. What is necessary is just to set so that the signal to close may be output. This allows the operator to manually open and close the window by an arbitrary amount by tilting the operation knob at a shallow angle, and to automatically open and close the window automatically by tilting the operation knob at a deep angle. Can be performed.
[0005]
[Patent Document 1]
JP-A-8-111142 (pages 3 to 5)
[0006]
[Problems to be solved by the invention]
The above-described conventional two-stage operation seesaw switch device is designed to have a certain degree of compactness by devising, for example, obliquely intersecting a straight line connecting a pair of push switches with the swing center line of the operation knob. Although it has been realized, it has been difficult to meet the demand for cost reduction by further downsizing and reducing the number of parts.
[0007]
The present invention has been made in view of such a situation of the related art, and an object of the present invention is to provide a two-stage operation seesaw switch device in which reduction in size and cost can be easily promoted.
[0008]
[Means for Solving the Problems]
In order to achieve the above-described object, in the two-stage operation seesaw switch device of the present invention, an operation knob that is swingably supported and a pair of vertically movable drive units that correspond to the tilt direction of the operation knob are provided. An operation plate provided with a first extension portion and a second extension portion on both sides of the intermediate portion, the operation plate being pressed and driven by the operation knob via the driving portion; and the first extension portion of the operation plate. A first push switch that supports a distal end of the extension, a second push switch that supports a distal end of the second extension of the operating plate, and a second push switch that supports the intermediate portion of the operating plate. And a push switch, wherein the operating plate includes a first elastic portion connecting the intermediate portion and the first extension portion, and a first elastic portion protruding from the first extension portion toward the intermediate portion. The first extension portion is provided with the first push switch by the pressing force of the operation knob. A first pressing force transmitting portion that presses and drives the intermediate portion when tilted with the fulcrum as a fulcrum; a second elastic portion that connects the intermediate portion and the second extending portion; The intermediate portion is protruded from the extending portion to the intermediate portion side, and presses and drives the intermediate portion when the second extending portion is tilted with the second push switch as a fulcrum by the pressing force of the operation knob. A second pressing force transmitting unit, and one of the driving units is configured to control the operation of a part of the first extension unit closer to the first push switch than the third push switch. In the process of applying a pressing force from a knob, the first extension portion is tilted in the process of lowering the drive unit by a predetermined amount to activate the first push switch, and the drive unit is further lowered in the process of further lowering. A first pressing force transmitting unit that operates the third push switch via the intermediate unit; And the other drive unit applies a pressing force from the operation knob to a portion of the second extension portion closer to the second push switch than the third push switch, and In the process of lowering the portion by a predetermined amount, the second extension portion is tilted to operate the second push switch, and in the process of further lowering the drive portion, the second pressing force transmitting portion is moved by the intermediate portion. The third push switch is configured to be operated via the.
[0009]
In the seesaw switch device configured as described above, when the operation knob is tilted, one of the drive units is lowered to apply a pressing force from the operation knob to a portion near one end or the other end of the operation plate. For example, by tilting the operation knob, one drive unit applies a pressing force from the operation knob to a portion of the operation plate closer to the first push switch than the third push switch of the first extension unit. In this case, the first extension of the operation plate is first tilted with the third push switch as a fulcrum, so that the first push switch is turned on. In this state, when the operation knob is further tilted, the first extension is turned on. The third push switch is turned on because the operation plate is tilted with the first push switch as a fulcrum. In addition, the operation knob is tilted in the opposite direction, and the other drive unit is moved from the operation knob to a portion of the operation plate closer to the second push switch than the third push switch of the second extension portion. Similarly, when the pressing force is applied, first, the second extension portion of the operation plate is tilted with the third push switch side as a fulcrum, and the second push switch is turned on. When further tilted, the operation plate tilts with the second push switch as a fulcrum, and the third push switch is turned on. Therefore, the signal output when only the first push switch is in the ON state by the three push switches pressed and driven by the common operation plate, and the signal output when both the first and third push switches are in the ON state , A signal output when only the second push switch is on, and a signal output when both the second and third push switches are on. The signal can be extracted. In other words, a seesaw switch device capable of outputting four types of electric signals according to the tilt direction and tilt angle of the operation knob can be realized with a small number of parts, and the number of push switches and operation plates can be reduced, thereby reducing the size. Also easier to plan.
[0010]
Further, when the first extension portion is tilted with the third push switch side as a fulcrum due to the pressing force from the operation knob, the first elastic portion is elastically deformed, so that the pressing force from the operation knob is applied to the bent portion. Is hardly transmitted, and therefore there is no fear that the third push switch is erroneously operated when the first push switch is operated. Further, when the first extension portion is tilted with the first push switch that was first turned on as a fulcrum, the bent portion is securely pushed in by the first pressing force transmitting portion to operate the third push switch. In addition, since the second elastic portion is elastically deformed, it is difficult for the pressing force from the operation knob to be transmitted to the distal end portion of the second extension portion, and therefore, the second push switch is erroneously operated. Don't worry about it. This series of operations is basically the same when tilting the second extension.
[0011]
In this configuration, when the operation plate is substantially rectangular in plan view and the third push switch is displaced from a straight line connecting the first and second push switches, the operation is performed within a narrow triangular area. A plate and each push switch can be arranged, which is advantageous for compactness, and a space facing the bottom surface of the operation knob is provided between the first extension portion and the second extension portion of the operation plate. Since it can be easily secured, by providing an illuminating body projecting into the space on the side of the third push switch, an illuminated type two-stage operation seesaw switch device can be realized without difficulty.
[0012]
Alternatively, in such a configuration, the operating plate has a shape in which the intermediate portion and the first and second extending portions are aligned on a straight line in a plan view, and the first, second, and third push switches are directly connected. When arranged on a line, the operating plate and each push switch can be arranged in a narrow area, so that a narrow two-stage operation seesaw switch device can be realized.
[0013]
Further, each push switch has a fixed contact, and a click rubber that is provided with a movable contact that comes into contact with and separates from the fixed contact and that can be buckled and deformed, and the top of the click rubber is engaged with the operation plate. It is preferable to use an inexpensive push switch capable of obtaining a clear click feeling and a sufficient return force, and to improve the assemblability.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a perspective view of a two-stage operation seesaw switch device according to an embodiment of the present invention, FIG. 2 is a side view of the switch device, and FIG. FIG. 4 is a plan view of the switch device, FIG. 4 is a diagram showing an operation plate used in the switch device, FIG. 4 (a) is a perspective view, FIG. 4 (b) is a plan view, and FIG. 4 (c) is a side view. is there. FIGS. 5 to 7 are explanatory diagrams of the operation of the switch device. FIG. 5 shows a non-operating state, FIG. 6 shows a first-stage switch-on state, and FIG. 7 shows a second-stage switch-on state. Is shown.
[0015]
The two-stage operation seesaw switch device shown in these figures is used as a power window switch of an automobile. The seesaw switch device includes a casing 1 forming an outer shell, an operation knob 2 swingably supported on a support shaft (not shown) on the casing 1, and a pair of operation knobs 2 corresponding to the tilting direction of the operation knob 2. Drive units 3 and 4 which can be moved up and down, an operation plate 5 which is pressed and driven by the operation knob 2 via the drive unit 3 or the drive unit 4 and has a substantially rectangular shape in plan view, and click rubbers 6a to 6c protrude. It is mainly constituted by a rubber sheet 6 provided and a substrate 7 on which the rubber sheet 6 is placed.
[0016]
As shown in FIG. 2, a movable contact 8 is provided on the ceiling surface of each of the click rubbers 6a to 6c, and a fixed contact 9 is provided on the substrate 7 at a position facing each movable contact 8. Each movable contact 8 comes into contact with the lower fixed contact 9 when the click rubber, which is a holder, buckles and deforms. Therefore, the corresponding movable contact 8 and the fixed contact 9 constitute a contact portion of the push switch. That is, the first push switch 10a using the click rubber 6a as a holder, the second push switch 10b using the click rubber 6b as a holder, and the third push switch 10c using the click rubber 6c as a holder The tops of the click rubbers 6 a to 6 c are inserted into and engaged with engagement holes 11 provided at three places of the operation plate 5.
[0017]
The operation plate 5 is an integrally molded product, but is not a single plate. The intermediate portion 5c and the first extension portion 5a extending to one side thereof are formed of a thin first elastic portion 15d having a semi-cylindrical shape. And the intermediate portion 5c and the second extending portion 5b extending to the other side are elastically connected by a thin semi-cylindrical second elastic portion 15e. . The operating plate 5 has a first pressing force transmitting portion 5f having a lower surface protruding from the upper surface of the first extending portion 5a toward the intermediate portion 5c and in contact with the upper surface of the intermediate portion 5c; And a second pressing force transmitting portion 5g having a lower surface protruding from the upper surface of the extending portion 5b toward the intermediate portion 5c and having a lower surface in contact with the upper surface of the intermediate portion 5c. The tip of the first extension 5a is engaged with and supported by the top of the first push switch 10a, and the tip of the second extension 5b is connected to the top of the second push switch 10b. The intermediate portion 5c is engaged with and supported by the top of the third push switch 10c. The operation plate 5 has a substantially rectangular shape in plan view, and the third push switch 10c is arranged at a position shifted from a straight line connecting the first and second push switches 10a and 10b. An illuminator (LED) 13 that is exposed in the opening 12 of the rubber sheet 6 is mounted on the side of the third push switch 10 c on the substrate 7. It protrudes between the first extension 5a and the second extension 5b.
[0018]
The operation knob 2 can swing about a swing center line L which is the axis of the support shaft, and is tilted by being rotated in the clockwise direction and the counterclockwise direction in FIG. When the operation knob 2 is rotated clockwise and tilted, one drive unit 3 is pushed down and lowered, and when the operation knob 2 is rotated counterclockwise and tilted, the other drive unit 4 is pressed. And descend. Here, the lower end of the one drive unit 3 is in contact with the upper surface of the first extension 5a of the operation plate 5, and this contact position is more than the third push switch 10c. Near the push switch 10a. The lower end of the other drive unit 4 is in contact with the upper surface of the second extension portion 5b of the operation plate 5, but this contact position is closer to the second push switch 10b than to the third push switch 10c. Close to. Therefore, when the operation knob 2 is tilted and the drive unit 3 is lowered, a pressing force from the operation knob 2 is applied to the contact position on the upper surface of the first extension 5a of the operation plate 5, When the operation unit 2 is tilted in the opposite direction and the drive unit 4 descends, a pressing force from the operation knob 2 is applied to the contact position on the upper surface of the second extension 5b of the operation plate 5. become.
[0019]
Next, the operation of the two-stage operation seesaw switch device configured as described above will be described with reference to FIGS. When the tilting operation of rotating the operation knob 2 in the clockwise direction in FIG. 5 is performed, the driving unit 3 is pushed down by the operation knob 2 and descends, so that the first extension 5a of the operation plate 5 Due to the difference in force, the third push switch 10c is tilted with the fulcrum as shown in FIG. At this time, since the first elastic portion 5d is elastically deformed, the pressing force of the operation knob 2 is hardly transmitted to the bent portion 5c. Then, when the drive unit 3 is lowered by a predetermined amount, the click rubber 6a is pushed into the tip of the first extension 5a and is buckled and the first push switch 10a is turned on. After the first push switch 10a is turned on in this way, if the operating force on the operation knob 2 is removed, the click rubber 6a that has been buckled and deformed returns to its original shape due to its own elasticity. The extension knob 5a and the drive unit 3 are pushed up, the operation knob 2 returns to the neutral position shown in FIG. 5, and the first push switch 10a is turned off. In this embodiment, when the first push switch 10a is in the ON state, an electric signal for opening the window is output. Therefore, by turning on / off the first push switch 10a, the operator can perform the operation. Manual operation of opening windows by an arbitrary amount can be performed.
[0020]
Further, when the operation knob 2 is further tilted while the first push switch 10a is turned on, the driving unit 3 is further lowered, so that the first extension unit 5a is turned on. And the first pressing force transmitting portion 5f pushes the bent portion 5c from above in the process. Therefore, by tilting the operation knob 2 by a predetermined angle or more, as shown in FIG. 7, the first pressing force transmitting portion 5f buckles and deforms the click rubber 6c via the bent portion 5c, and the third push The switch 10c turns on. At this time, since the second elastic portion 5e is elastically deformed, the pressing force of the operation knob 2 is not easily transmitted to the second extending portion 5b. In this embodiment, when both the first and third push switches 10a and 10c are turned on, an electric signal for fully opening the window is output. When the third push switch 10c is turned on by largely rotating in the clockwise direction, the automatic operation of automatically fully opening the window can be performed. If the operating force on the operating knob 2 is removed after the third push switch 10c is turned on, the click rubbers 6a and 6c that have been buckled and deformed return to their original shapes due to their own elasticity. The operating knob 2 returns to the neutral position shown in FIG. 5, and the first and third push switches 10a and 10c are both turned off.
[0021]
The operation in the case where the tilting operation of rotating the operation knob 2 in the counterclockwise direction in FIG. 5 is performed is basically the same. While elastically deforming the elastic portion 5e, the second extending portion 5b tilts around the third push switch 10c as a fulcrum, and the tip of the extending portion 5b turns on the second push switch 10b. Therefore, the operator can perform a manual operation of closing the window by an arbitrary amount. Further, when the operation knob 2 is further tilted in this state, the second extension portion 5b is tilted so as to lie on the second push switch 10b as a fulcrum, and the first elastic portion 5d is elastically deformed. While the second pressing force transmitting portion 5g pushes the bent portion 5c from above, the third push switch 10c is turned on, whereby the operator can automatically perform the automatic operation of completely closing the window.
[0022]
As described above, the two-stage operation seesaw switch device according to the present embodiment is configured such that the three push switches 10a to 10c pressed and driven by the common operation plate 5 cause only the first push switch 10a to be in the ON state. , A signal output when both the first and third push switches 10a and 10c are on, a signal output when only the second push switch 10b is on, It is possible to extract a total of four types of electric signals, that is, signals output when both the second and third push switches 10b and 10c are in the ON state. That is, a seesaw switch device capable of outputting four types of electric signals according to the tilt direction and the tilt angle of the operation knob 2 can be realized with a small number of components, so that the cost can be easily reduced. In addition, since the operation plate 5 has a substantially rectangular shape in a plan view and the three push switches 10a to 10c can be arranged in a narrow area, the size can be easily reduced. Further, since the illuminating body 13 is provided on the side of the third push switch 10c so as to project into the space between the first extension portion 5a and the second extension portion 5b of the operation plate 5, An illuminated two-stage operation seesaw switch device has been realized without difficulty without compromising compactness.
[0023]
Further, since the two-stage operation seesaw switch device uses the operating plate 5 which is not a single plate, the first extension portion 5a and the second extension portion 5b are moved to the third extension by the pressing force from the operation knob 2. When tilted with the push switch 10c as a fulcrum, the first elastic portion 5d and the second elastic portion 5e are elastically deformed, so that the pressing force from the operation knob 2 is hardly transmitted to the bent portion 5c. Therefore, there is no fear of erroneously operating the third push switch 10c when operating the first push switch 10a or the second push switch 10b. When the first extension 5a or the second extension 5b is tilted with the first push switch 10a or the second push switch 10b turned on as a fulcrum, the first pressing force transmission unit The third push switch 10c can be operated by reliably pushing the bent portion 5c by the 5f or the second pressing force transmitting portion 5g, and the elastic portion 5e or 5d is elastically deformed. The pressing force from the operation knob 2 is hardly transmitted to 10a, so that there is no fear of malfunction.
[0024]
As in the present embodiment, click rubbers 6a to 6c provided with movable contacts 8 are employed as push switches 10a to 10c, and the tops of the click rubbers 6a to 6c are engaged with the engagement holes 11 of the operation plate 5. This configuration is preferable because it is an inexpensive push switch that provides a clear click feeling and a sufficient return force, and also has good assemblability.
[0025]
FIG. 8 is a view showing an operation plate according to another embodiment of the present invention. FIG. 8 (a) is a plan view, and FIG. 8 (b) is a side view. The operation plate 15 shown in the figure is greatly different from the above embodiment in that the intermediate portion 15c and the first and second extension portions 15a and 15b are arranged on a straight line in a plan view. However, the operation plate 15 also has a first elastic portion 15d for connecting the intermediate portion 15c and the first extension portion 15a, and a second elastic portion 15d for connecting the intermediate portion 15c and the second extension portion 15b. An elastic portion 15e, a first pressing force transmitting portion 15f protruding from the first extending portion 15a toward the intermediate portion 15c, and a first pressing force transmitting portion 15f protruding from the second extending portion 15b toward the intermediate portion 15c. Since the second pressing force transmitting portion 15g is formed, the first pressing force transmitting portion is formed when the first extension portion 15a is tilted about the first push switch 10a by the pressing force of the operation knob 2. 15f presses and drives the intermediate portion 15c, and when the second extension portion 15b is tilted about the second push switch 10b as a fulcrum by the pressing force of the operation knob 2, the second pressing force transmitting portion 15g is moved. The intermediate portion 15c is driven to be pressed.
[0026]
When such an operation plate 15 is employed, the first, second, and third push switches 10a, 10b, and 10c can be arranged in a straight line, so that the operation plate 15 and each of the push switches can be arranged in a narrow area. 10a to 10c can be provided. Accordingly, a narrow and compact two-stage operation seesaw switch device can be easily realized.
[0027]
In the above-described embodiment, an example in which the push switch uses the click rubber as the holder has been described. However, the push switch is not limited to this, and any push switch that can impart a click feeling can be used. A push switch can be used.
[0028]
【The invention's effect】
The present invention is implemented in the form described above, and has the following effects.
[0029]
Four types of electric signals can be extracted by three push switches pressed and driven by a common operation plate, so that a two-stage operation capable of outputting four types of electric signals according to the tilt direction and tilt angle of the operation knob. The seesaw switch device can be realized with a small number of parts, which is advantageous for cost reduction, and the number of push switches and operation plates can be reduced, so that it is easy to promote compactness. In addition, since an operation plate that is not a single plate is used, and a malfunction of the push switch can be prevented by the elastic deformation of the elastic portion, high reliability is secured.
[0030]
Further, when the first and second extending portions and the intermediate portion of the operation plate are arranged in a substantially rectangular shape in plan view, the illuminating body projecting between the two extending portions is located on the side of the third push switch. The two-stage operation seesaw switch device of the illuminated type can be realized without difficulty.
[0031]
Further, when the first and second extending portions and the intermediate portion of the operation plate are aligned on a straight line in a plan view, the operation plate and each push switch can be arranged in a narrow area, A narrow and compact two-stage operation seesaw switch device can be realized without difficulty.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a two-stage operation seesaw switch device according to an embodiment of the present invention.
FIG. 2 is a side view of the seesaw switch device of FIG. 1;
FIG. 3 is a plan view of the seesaw switch device of FIG. 1;
FIG. 4 is a view showing an operation plate used in the seesaw switch device of FIG. 1;
FIG. 5 is an operation explanatory view showing a state when the seesaw switch device of FIG. 1 is not operated.
FIG. 6 is an operation explanatory diagram showing a first-stage switch-on state of the seesaw switch device of FIG. 1;
7 is an operation explanatory diagram showing a second-stage switch-on state of the seesaw switch device in FIG. 1;
FIG. 8 is a view showing an operation plate according to another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Casing 2 Operation knob 3, 4 Drive part 5, 15 Operating plate 5a, 15a First extension part 5b, 15b Second extension part 5c Intermediate part 5d, 15d First elastic part 5e, 15e Second Elastic parts 5f, 15f First pressing force transmitting parts 5g, 15g Second pressing force transmitting parts 6a to 6c Click rubber 7 Substrate 8 Movable contact 9 Fixed contact 10a First push switch 10b Second push switch 10c Third Push switch 11 engagement hole 15c middle part

Claims

An operation knob supported so as to be swingable, a pair of vertically movable drive units corresponding to the tilt direction of the operation knob, and a first extension portion and a second extension portion on both sides of the intermediate portion An operating plate, which is pressed and driven by the operation knob via the driving unit, a first push switch that supports a distal end of the first extending portion of the operating plate, A second push switch that supports a tip portion of the second extension portion, and a third push switch that supports the intermediate portion of the operation plate,
A first elastic portion connecting the intermediate portion and the first extending portion; and an operating plate protruding from the first extending portion toward the intermediate portion, and A first pressing force transmitting portion that presses and drives the intermediate portion when the first extending portion is tilted with the first push switch as a fulcrum, and the intermediate portion and the second extending portion; A second elastic portion connecting the extension portion and the second extension portion, the second extension portion protruding from the second extension portion toward the intermediate portion, and the second extension portion is pressed by the operation knob so that the second extension portion is in contact with the second elastic portion. A second pressing force transmitting portion that presses and drives the intermediate portion when tilted with the push switch as a fulcrum,
One of the drive units applies a pressing force from the operation knob to a portion of the first extension portion that is closer to the first push switch than the third push switch, and the drive portion is In the process of lowering by a fixed amount, the first extension portion is tilted to operate the first push switch, and in the process of further lowering of the drive portion, the first pressing force transmitting portion is moved through the intermediate portion. Activating the third push switch,
The other drive unit applies a pressing force from the operation knob to a portion of the second extension portion closer to the second push switch than the third push switch, and In the process of lowering by a fixed amount, the second extension portion tilts to operate the second push switch, and in the process of further lowering of the driving portion, the second pressing force transmitting portion passes through the intermediate portion. A two-stage operation seesaw switch device, wherein the third push switch is operated.

2. The device according to claim 1, wherein the operation plate has a substantially rectangular shape in a plan view, and the third push switch is displaced from a straight line connecting the first and second push switches. Stepping operation seesaw switch device.

2. The push plate according to claim 1, wherein the operation plate has a shape in which the intermediate portion and the first and second extension portions are aligned on a straight line in a plan view, and the first, second, and third pushers are arranged. A two-stage operation seesaw switch device, wherein the switches are arranged on a straight line.

The push switch according to any one of claims 1 to 3, wherein each of the push switches includes a fixed contact, and a click rubber that is provided with a movable contact that is in contact with and separated from the fixed contact and is capable of buckling deformation. A two-stage operation seesaw switch device wherein a top portion is engaged with the operation plate.