JP4195961B2

JP4195961B2 - Rotation switch

Info

Publication number: JP4195961B2
Application number: JP2001292447A
Authority: JP
Inventors: 晴彦三原
Original assignee: Panasonic Corp; Matsushita Electric Works Ltd
Current assignee: Panasonic Corp; Panasonic Electric Works Co Ltd
Priority date: 2001-09-25
Filing date: 2001-09-25
Publication date: 2008-12-17
Anticipated expiration: 2021-09-25
Also published as: JP2003100177A

Description

【０００１】
【発明の属する技術分野】
本発明は、二つの操作ハンドルが連動する回転スイッチに関するものである。
【０００２】
【従来の技術】
従来、オートマチック自動車のシフトレバーの操作位置を検出する回転スイッチには操作レバーが一つであったが、最近シーケンシャルマニュアルトランスミッションを搭載したＭＴ車にもシフトレバーの位置を検出するためのスイッチを設けるようなってきている。
【０００３】
【発明が解決しようとする課題】
ところで、上記のスイッチとしては、例えばリバース位置と、ニュートラル位置と、シフト位置と、シフト位置でのシフトアップ、シフトダウンの操作検出とが必要となり、そのため位置検出のための操作ハンドルと、シフトアップやシフトダウンの操作検出のための操作ハンドルを備え、両操作ハンドルに連動関係を持たせた回転スイッチが要求されているが、このような二つの操作ハンドルを備え且つ連動関係を持たせるためのスイッチでは大型化や組み立て性等が問題となってくる。
【０００４】
本発明は上記の点に鑑みて為されたもので、その目的とするところは、小型に製作することができ、しかも組み立てが容易で、またスイッチの切り換え位置の精度が高い回転スイッチを提供することにある。
【０００５】
【課題を解決するための手段】
上記目的を達成するために、請求項１の発明では、一方に出力端子群を備え、これら出力端子に電気的に接続された円弧状の複数の固定接点を並行配設した固定接点部を内側平面に配設し、固定接点部側を相対するように重ね結合して器体を構成する２つのベースブロックと、一端が軸で軸支されて該軸を中心として上記両ベースブロック間に形成される空間内をベースブロックに沿うようように回転自在に配置された、上記軸を要とする略扇状の第１の操作ハンドルと、上記軸に軸支されて該軸を中心として両空間内をベースブロックに沿い且つ第１の操作ハンドルに並行するように回転自在に配置された略棒状の第２の操作ハンドルと、第１の操作ハンドルの中央部に形成された開口窓と、回転移動方向で上記開口窓の両側に位置する第１の操作ハンドル部位に貫通するように設けられ、第１の操作ハンドルの両側部より夫々露出した接触面を上記両固定接点部の対応する固定接点に第１の操作ハンドルの回転移動時に接触・開離させる複数の第１の可動接点体群と、第１の操作ハンドルの開口窓に対応する第２の操作ハンドルの部位に貫通するように設けられ、第２の操作ハンドルの両側部より夫々露出した接触面の一方を開口窓を介して第１の操作ハンドル側の上記固定接点部の対応する固定接点に、接触面の他方を第２の操作ハンドル側の固定接点部の対応する固定接点に、第２の操作ハンドルの回転移動時に接触・開離させる複数の第２の可動接点体群とを有し、一方の操作ハンドルの他端部近辺に一体に、他方の操作ハンドルの回転移動軌跡に直交する方向に突出した突片を設け、この突片に他方の操作ハンドルを所定範囲で回転移動を規制とともに一方の操作ハンドルの回転時に他方の操作ハンドルを係合して共動回転させるように他方の操作ハンドルを貫挿させる切欠部を設けて成ることを特徴とする。
【０００６】
請求項２の発明では、請求項１の発明において、上記両操作ハンドルの各可動接点体は夫々の操作ハンドルの両側面に貫通する孔の両側開口部付近に夫々移動自在に収納した２つの可動接点と、両可動接点間に介在し夫々の可動接点の接触面を外方向に突出させるように付勢する導電材からなるコイルスプリングとで構成して成ることを特徴とする。
【０００７】
【発明の実施の形態】
以下本発明を一実施形態により説明する。
【０００８】
図２、図３は本実施形態の外観を示しており、本実施形態の回転スイッチは側面形状が略扇状の器体１と、この器体１の内部空間に並行に配置され、扇状の器体１の要部において一端が軸支され、該軸支点を中心として回転移動自在な二つの操作ハンドル２，３の操作部２Ａ，３Ａを器体１の端面の開口窓１５より外部へ突出させ、これら操作部２Ａ，２Ｂを例えば自動車のシフトレバーの機構部と連動させるための連動機構に連結させるて使用する。
【０００９】
器体１の一端部には外部にスイッチ信号を出力するための出力端子群４を備えたコネクタ部５を設けてある。
【００１０】
器体１は図４、図５に示す合成樹脂（ＰＢＴ）の成形品からなる第１のベースブロック１Ａと、図５，図６に示す合成樹脂（ＰＢＴ）の成形品からなる第２のベースブロック１Ｂとを重ね、外周縁部に形成した取り付け孔６…に挿通させたねじ体７にナット８を締結することで両ブロック１Ａ，１Ｂを結合固定することで構成される。
【００１１】
第１のベースブロック１Ａは、平面外形状が扇状に形成され、その内側には要部から中央部にかけて扇形のやや深めの凹平面１０Ａを形成するとともに、この凹平面１０から要部より見て先端方向にかけてはやや浅めの凹平面１０Ｂを形成し、凹平面１０Ａと凹平面１０Ｂとの境界部位には円弧状のリブ１１を一体に形成している。
【００１２】
凹平面１０Ａの要部には第２のベースブロック１Ｂに一体に形成した回転軸１２（図７参照）を受けるための軸受け穴１３を凹設している。
【００１３】
またリブ１１は中央部を一定幅切欠いてリブ１１の高さよりも低い面を形成し、この面を操作ハンドル２で保持する復帰用ねじりばね３０（図１３参照）をガイドするガイド部４１Ａとし、またガイド部４１Ａの両端のリブ１１に沿った立壁面で復帰用ねじりばね３０の移動を規制して復帰用ばね力を蓄積するためのストッパー４２Ａを構成している。
【００１４】
またベースブロック１Ａの先端部のやや中央よりの位置には内側方に一体突出させた突起片９を設けており、この突起片９は、後述するようにベースブロック１Ｂの先端部の周壁に形成される凹欠１４内に嵌る。そして凹平面１０Ｂは後述する図８の固定接点部１６Ａを配設する配設部を構成する。
【００１５】
上記のように構成されるベースブロック１Ａに重ね結合される他方のベースブロック１Ｂは図６、図７に示すように略扇形に形成され、その内側には扇形の要部位置からやや中央部に至るまで上記の凹平面１０Ａよりやや深い扇形の凹平面１７Ａを形成し、またこの凹平面１７Ａからベースブロック１Ｂの先部に至るまでの部位に凹平面１７Ａより更に深くなった凹平面１７Ｂを形成し、両凹平面１７Ａ、１７Ｂの境界部位には円弧状のリブ１８を一体に形成し、このリブ１８の中央部に中央部を一定幅切欠いてリブ１８の高さよりも低い面を形成し、この面を操作ハンドル３で保持する復帰用ねじりばね３５（図１１参照）を摺動させるガイド部４１Ｂとし、またこのガイド部４１Ｂの両端のリブ１８に沿った立壁面で復帰用ねじりばね３０の移動を規制して復帰用ばね力を蓄積するためのストッパー４２Ｂを構成している。
【００１６】
そして扇形の凹平面１７Ａの要部位には操作ハンドル３，２を回動自在に軸支する上述の回転軸１２を一体に突設している。
【００１７】
また凹平面１７Ｂの片側にはコネクタ部５を構成する出力端子群４が配設される凹溝１９が形成され、この凹溝１９の先端のベースブロック１Ｂの側壁にはプラグ差し込む口２０を開口している。この差し込み口２０から凹平面１０Ｂに至る凹溝１９の開口部にはベースブロック１Ａが被って凹溝１９の開口部を閉塞するようになっている。
【００１８】
また凹平面１７Ｂは、後述する図９の固定接点部１６Ｂを配設する配設部を構成する。
【００１９】
この凹平面１７Ｂに沿ったベースブロック１Ｂの先端部の周壁の中央部には上述の凹欠１４を形成している。この凹欠１４は図６（ａ）に示すよう中央から切欠口までの開口幅が広く、中央から奥端までの開口幅が狭く形成され、開口幅の広い側にベースブロック１Ａの突起片９を嵌めることで、図２（ａ）に示すように略Ｚ字状の開口窓１５が形成される。
【００２０】
ベースブロック１Ａの凹平面１０Ｂに配設される固定接点部１６Ａ及びベースブロック１Ｂの凹平面１７Ｂに配設される固定接点部１６Ｂは共に、図，図９に示すように弧状の樹脂成形基板２１Ａ，２１Ｂと、基板面に露出する円弧状の後述する固定接点と、端部より突出せる出力端子群４とで構成され、ベースブロック１Ａ，１Ｂを結合したときに相対する面が固定接点の露出面となるように配置され、また各樹脂成形基板２１Ａ，２１Ｂの両端部には互いに接面する突出部２４ａ，２４ｂを相対向方向に夫々一体突出形成し、夫々の樹脂成形基板２１Ａ、２１Ｂの突出部２４ａ，２４ｂが対向接面することで、樹脂成形基板２１Ａ，２１Ｂ間に操作ハンドル２，３を移動させることができる空間が形成されようなっている。
【００２１】
ここで一方の樹脂成形基板２１Ａには図８に示すように等間隔で並行する３つの同心円弧線において、中央の円弧線上に二つの円弧状の固定接点２２ｃ１、２２ｃ２を夫々所定の長さで、所定の間隔を開けて形成しており、これら二つの固定接点２２ｃ１，２２ｃ２は共通接点を構成するもので同一の導電板により形成され、その導電板の一端より延長形成した共通の出力端子によって外部回路に接続される。一方外側の円弧線上には３つの固定接点２２ａ１〜２２ａ３を夫々所定の長さで、所定の間隔を開けて形成しており、夫々の固定接点２２ａ１〜２２ａ３は各別の導電板によって形成され、夫々の導電板の一端より延長形成した出力端子によって外部回路に接続される。また内側の円弧上にはほぼ中央に所定の長さの固定接点２２ｂ１を形成しており、この固定接点２２ｂ１を形成する導電板の一端より延長形成した出力端子により外部回路に接続される。
【００２２】
他方の樹脂成形基板２１Ｂには図９に示すように等間隔で並行する３つの同心円弧において、中央の円弧線上に３つの円弧状の固定接点２３ｃ１〜２３ｃ３を夫々所定の長さで、所定の間隔を開けて形成しており、これら三つの固定接点２３ｃ１〜２３ｃ３は共通接点を構成するもので同一の導電板により形成され、その導電板の一端より延長形成した共通の出力端子によって外部回路に接続される。一方外側の円弧線上には四つの固定接点２３ａ１〜２３ａ４が夫々所定の長さで、所定の間隔を開けて形成しており、中央の固定接点２３ａ２〜２３ａ３は同じ導電板によって形成され、両端の固定接点２３ａ１，２３ａ４は夫々別の導電板により形成し、夫々の導電板の一端より延長形成した出力端子によって外部回路に接続される。また内側の円弧線上には中央よりやや他端側に偏倚する位置に所定の長さの固定接点２３ｂ１を形成しており、この固定接点２３ｂ１を形成する導電板の一端より延長形成した出力端子によって外部回路に接続される。
【００２３】
ここで上記樹脂成形基板２１Ａ，２１Ｂの上述の３つの並行する円弧はベースブロック１Ａ，１Ｂの凹平面１０Ｂ，１７Ｂに配置した状態で回転軸１２の中心つまり、操作ハンドル２，３の回転中心を中心とする。
【００２４】
次に本実施形態に用いる操作ハンドル２，３について説明する。
【００２５】
まず操作ハンドル３は図１０に示すように外形状が扇形に形成された樹脂成形品からなり、一面側の一端側（扇形の要部側）にはベースブロック１Ａの回転軸１２を挿通させる軸孔２６を貫通させた円筒部２７を一体に設けてある。また操作ハンドル３の略中央位置に両側に至る段部３ａを形成して操作ハンドル３の上記一端側から略中央に至る部位を略中央から他端側に至る部位よりも円筒部２７の突出方向に高くしている。円筒部２７は操作ハンドル３の復帰用ばねである図１１（ａ）（ｂ）に示すねじりばね３５のねじり部３５ａを嵌めるばね座を構成する。
【００２６】
そして操作ハンドル３の一面側において、操作ハンドル３の他端両側間及び他端両側から段部３ａ近傍の位置に至る両側には立壁３ｂを一体に突出形成し、コ字型の立壁３ｂの両側先端の対向面には上記ねじりばね３５の両側脚片３５ｂ，３５ｂを弾接させて両側脚片３５ｂ，３５ｂの拡開角度を一定に規制するストッパー２９，２９を対向突設している。更にコ字状に形成された立壁３ｂに囲まれた部位には開口窓３ｄを形成している。
【００２７】
また立壁３の両側部の操作ハンドル３の先端部寄りに位置には、操作ハンドル３の両端方向が長手で中央が両側に広がった可動接点体装着用の孔３１ａ、３１ｂを夫々貫通形成してある。これらの孔３１ａ，３１ｂの両端部の位置は、操作ハンドル３をベースブロック１Ｂの回転軸１２に回転自在に軸支し、且つ固定接点部１６Ａ，１６Ｂを夫々バースブロック１Ａ，１Ｂの凹平面１０Ｂ，１７Ｂの所定配置して器体１内に組み込んだときに、固定接点部１６Ａ，１６Ｂに形成せる固定接点２２ａ１〜２２ａ３、２３ａ１〜２３ａ４を夫々配置している外側の円弧線と、固定接点２２ｃ１，２２ｃ２、２３ｃ１〜２３ｃ３を夫々配置している中央の円弧線とに跨る位置に形成され、また各孔３１ａ，３１ｂの幅方向の中心線を操作ハンドル３の回転中心を通る線上に位置させている。
【００２８】
更に先端側の立壁３ｂの周部には鍔部３ｃを一体突設して、この鍔部３ｃの操作ハンドル２の回転移動軌跡側に直交するように突出した片の略中央部には切欠部からなる開口部３２を形成している。またこの開口部３２の両側方向の中央位置に対応する鍔部３ｃの外面に操作部３Ａを一体突設している。
【００２９】
また操作ハンドル２は図１２に示すように幅狭の略棒状に形成された樹脂成形品からなり、一面側の一端部にベースブロック１Ａの回転軸１２を挿通させる軸孔３３を貫通させた円筒部３４を一体に設けてある。また操作ハンドル２の略中央位置には両側に至る段部２ａを形成して操作ハンドル２の上記一端側から略中央に至る部位を略中央から他端側に至る部位よりも円筒部３４の突出方向に高くしている。円筒部３４は操作ハンドル３の復帰用ばねである図１３（ａ）（ｂ）に示すねじりばね３０のねじり部３０ａを嵌めるばね座を構成する。そして上記段部２ａの近傍の一端側の両側に突出部２ｂを一体形成し、この突出部２ｂにねじりばね３０の両側脚片３０ｂ、３０ｂを弾接させて両側脚片３０ｂ、３０ｂの拡開角度を規制するストッパー３６，３６を一体突設している。
【００３０】
また段部２ａと操作ハンドル２の先端部との間の他面側の略中央部には厚肉部２ｄを形成してあり、この厚肉部２ｄには可動接点体装着用の孔３１ｃ、３１ｄを、一方の孔３１ｃの一端位置が他方の孔３１ｄの他端位置となるように並行させて貫通形成してある。そして一方孔３１ｃの両端部の位置は、操作ハンドル２をベースブロック１Ｂの回転軸１２に回転自在に軸支し、且つ固定接点部１６Ａ，１６Ｂを夫々バースブロック１Ａ，１Ｂの凹平面１０Ｂ，１７Ｂの所定配置して器体１内に組み込んだときに、固定接点部１６Ａ，１６Ｂに形成せる固定接点２２ａ１〜２２ａ３、２３ａ１〜２３ａ４を夫々配置している外側の円弧線と、固定接点２２ｃ１，２２ｃ２、２３ｃ１〜２３ｃ３を夫々配置している中央の円弧線とに跨る位置に形成され、また孔３１ｃの幅方向の中心線を操作ハンドル２の回転中心を通る線上に位置させている。
【００３１】
他方の孔３１ｄの両端部の位置は、固定設定部１６Ａ，１６Ｂの固定接点２２ｃ１，２２ｃ２、２３ｃ１〜２３ｃ３を夫々配置している中央の円弧線と、固定接点２２ｂ１、２３ｂ１を夫々配置している内側の円弧線とに跨る位置に形成され、また孔３１ｄの幅方向の中心線を操作ハンドル２の回転中心を通る線上に位置させている。
【００３２】
そして操作ハンドル２の先端部には鍔部２ｃを一体形成し、この鍔部２ｃの表面より操作部２Ａを一体突設している。
【００３３】
次に操作ハンドル２，３の各孔３１ａ、３１ｂ、３１ｃ、３１ｄ内に装着する可動接点体３７について図１４（ａ）（ｂ）に基づいて説明する。ここでは説明を簡略化するために操作ハンドル２の厚肉部２ｄに貫通形成せる孔３１ｃ内に装着している場合について説明する。
【００３４】
可動接点体３７は、図示するように二つのコ字状の可動接点３７Ａ，３７Ｂと、この可動接点３７Ａ，３７Ｂの間に介在して両可動接点３７Ａ，３７Ｂを付勢する導電材からなるコイルスプリング３７Ｃとで構成され、両可動接点３７Ａ，３７Ｂの接点面を形成する中央片が孔３１ｃの両端開口より露出するように孔３１ｃ内に内装される。そして操作ハンドル２の所定回転位置において、例えば固定接点部１６Ａの固定接点２２ａ１と２２ｃ１とに可動接点３７Ａの中央片の外面がコイルスプリング３７Ｃの付勢により弾接して両固定接点２２ａ１，２２ｃ１間を短絡し、反対側の固定接点部１６Ｂでは固定接点２３ａ１…、２３ｃ１…を設けてある位置の間の樹脂成形基板２１Ｂに一体形成した円弧状のリブ３８上に可動接点３７Ｂが乗り上げて開離状態となる。
【００３５】
つまり可動接点３７Ａ或いは３７Ｂが跨る近接せる２条の円弧線上には配置された固定接点部１６Ａ，１６Ｂの固定接点は、両円弧線間に固定接点の接触面より高いリブ３８が介在するか否かにより可動接点３７Ａ或いは３７Ｂにより固定接点間が開離されるか、短絡されるかが決まるようになっており、図８，図９に示すように適宜円弧状のリブ３８を樹脂成形基板２１Ａ，２１Ｂに形成することで、各操作ハンドル２，３の各孔３１ａ〜３１ｃに装着した可動接点体３７の可動接点３７Ａ，３７Ｂによる固定接点間の短絡出力の有無の組み合わせによって操作ハンドル２，３の様々な回転位置を検出することができるようなっている。
【００３６】
また可動接点３７Ａ（又は３７Ｂ）の接触面を図１５（ａ）に示すようにＲ面とし、且つ可動接点３７Ａ（又は３７Ｂ）が乗り上げて接点開離を行うためのリブ３８の端面をＲ面に形成することで可動接点３７Ａ（又は３７Ｂ）のリブ３８への乗り上げを容易とし、また可動接点３７Ａ，３７Ｂのリブ３８への乗り上げが繰り返されることで、リブ３８の端面が図１５（ｂ）に示すように摩耗（ｘ）するが、同様に固定接点（符号を２２で示す）側接点面も摩耗（ｙ）するため摩耗のバランスが図れ、その結果乗り上げ点と接触位置とのずれは少ない。
【００３７】
更に図１６に示すように両側の固定接点（例えば２２ａ１，２２ｃ１）間にリブ３８を形成して、可動接点３７Ａがリブ３８に乗り上げることで固定接点２２ａ１，２２ｃ１間を両切りするようにし、アークの切れを良くしている。
【００３８】
また更にリブ３８の端面側に臨む両側の固定接点（図１５では２２ａ１及び２２ｃ１）の接点面の側縁と隣接するリブ３８の側縁との間には空隙ａを図に示すように設けてある端面との間には間隙を設けてある。
【００３９】
而して本実施形態の回転スイッチを組み立てるに当たっては、まず各操作ハンドル２，３の孔３１ａ〜３１ｄに可動接点体３７の各部材を装着した状態で円筒部２７，３４を互いに外側に向けて軸孔２６，３３が連通するように位置させて操作ハンドル２，３の他面側を重ねる。この場合軸孔２６，３３の開口部にはワッシャ（図示せず）を介在させる。そして操作ハンドル３の鍔部３ｃの開口部３２に操作ハンドル２の鍔部２ｃを両側方向に移動自在に嵌め込み、操作部２Ａを外部に突出させるとともに、操作ハンドル２の厚肉部２ｄを操作ハンドル３の開口窓３ｄ内に納め、厚肉部２ｄの端面を操作ハンドル３の反対側面に露出させる。
【００４０】
このとき操作ハンドル２の突出部２ｂの他面側が、操作ハンドル３の開口窓３ｄの両側の他面側に重なり、また操作ハンドル２の段部２ａ位置から鍔部２ｃに至る部位の一面が開口窓３ｄの両側の操作ハンドル３の他面よりやや低い高さとなる。
【００４１】
このように二つの操作ハンドル２，３を重ねて組み付けたブロックの両面側から固定接点部１６Ａ，１６Ｂの樹脂成形基板２１Ａ、２１Ｂを対向配置して、両側の突出部２４ａ、２４ｂ同士を面接させ、操作ハンドル２，３を介在させる形で結合する。このとき操作ハンドル３の鍔部３ｃは開口部３２内に操作ハンドル２の鍔部２ｃを臨ました状態で両樹脂成形基板２１Ａ，２１Ｂで形成される空間の外側開口周縁に被り且つ樹脂成形基板２１Ａ，２１Ｂの先端面に沿って移動自在に配置され、両操作ハンドル２，３の操作部２Ａ，３Ｂが外方に突出する。
【００４２】
そして固定接点部１６Ａ、１６Ｂを組み付けた後、操作ハンドル３の円筒部２７にねじりばね３５のねじり部３５ａを嵌め、ねじりばね３５のＶ字形に開いた両側脚片３５ｂ、３５ｂを対向方向に撓ませながら操作ハンドル３のストッパー２９，２９間に嵌め込んで両側脚片３５ｂ、３５ｂをストッパー２９，２９に弾接させる。同様に操作ハンドル２の円筒部３４にねじりばね３０のねじり部３０ａを嵌め、ねじりばね３０のＶ字形に開いた両側脚片３０ｂ、３０ｂを対向方向に撓ませながら操作ハンドル３のストッパー３６，３６間に嵌め込んで両側脚片３０ｂ、３０ｂをストッパー３６，３６に弾接させる。
【００４３】
更にねじりばね３０，３５を装着した後、操作ハンドル３の円筒部２７側をベースブロック１Ｂに向けて円筒部２７の軸孔２６と、介在せるワッシャの孔と、操作ハンドル２の円筒部３４の軸孔３３をベースブロック１Ｂの回転軸１２に被挿し、ベースブロック１Ｂの凹平面１７Ｂに固定接点部１６Ｂを配置し、凹溝１９に固定接点部１６Ａ，１６Ｂの一端部より突出せる出力端子群４を収納する。このとき上記ねじりばね３５の上記ストッパー２９，２９に接する位置よりも先側の両側脚片３５ｂ、３５ｂの部位がベースブロック１Ｂの中央部に形成せるリブ１８のガイド部４１Ｂの両端に設けたストッパ−４２Ｂ，４２Ｂに接し且つガイド部４１Ｂに対して移動可能に配置される。
【００４４】
また樹脂成形基板２１Ａ，２１Ｂにより形成された空間の外側開口縁に沿うように配置された操作ハンドル３の鍔部３ｃはベースブロック１Ｂの先端側周壁の裏面と樹脂成形基板２１Ａ，２１Ｂにより形成された空間の外側開口縁との間に形成される間隙に移動可能に収まることになる。ここで鍔部３ｃの長手方向の幅寸法をベースブロック１Ｂの先端側周壁に形成される凹欠１４の対応する方向の幅寸法よりも長く形成している。
【００４５】
そして操作ハンドル３の操作部３Ａはベースブロック１Ｂの凹平面１０Ｂの底部側に位置する側から凹欠１４を介してベースブロック１Ｂより外部に突出する。
【００４６】
さてベースブロック１Ｂへの組み付け後、操作ハンドル２の一面側からベースブロック１Ａを被着する。この際操作ハンドル２の円筒部３４の軸孔３３より突出した回転軸１２の先端をベースブロック１Ａの凹平面１０Ａの一端部に形成した軸受け穴１３に回転自在に嵌めるとともに、樹脂成形基板２１Ａをベースブロック１Ａの凹平面１０Ｂ内に配置する。この際ストッパー２６，２６に接している位置よりもねじり部３０ａ寄りのねじりばね３０の両側脚片３０ｂ，３０ｂの部位がベースブロック１Ａのリブ１１に形成せるガイド部４１Ａの両端に設けられたストッパー４２Ａ，４２Ａに接し且つガイド部４１Ａに対して移動可能に配置される。
【００４７】
このようにしてベースブロック１Ａにベースブロック１Ｂを被せた後、両ブロック１Ａ、１Ｂをねじ固定することで、操作ハンドル２，３及び固定接点部１６Ａ、１６Ｂを図１７に示すように器体１内に収納した回転スイッチが完成することになる。
【００４８】
次に本発明の回転スイッチの動作について図１（ａ）（ｂ）に基づいて簡単に説明する。まず各操作ハンドル２，３は例えば自動車のシフトレバーに結合された連動機構により回転操作が為されるようなっているものとし、シフトレバーが通常位置にある場合、操作ハンドル２，３は夫々に装着された各ねじりばね３０，３５がベースブロック１Ａ，１Ｂのストッパー４２Ａ，４２Ｂによって図示する状態に動きが規制され、操作ハンドル２の鍔部２ｃが操作ハンドル３の開口部３２の中央に位置した状態にあって、操作ハンドル２の操作部２Ａと操作ハンドル３の操作部３Ａとがほぼ重なる位置にある。
【００４９】
この状態で操作ハンドル３は操作ハンドル２の鍔部２ｃの右又は左の端面が操作ハンドル３の開口部３２の左又は右端の内側端面に当たる位置（図１（ｂ）の（イ）又は（ロ）の位置まで左又は右方向に回転させることができる。
【００５０】
この際、操作ハンドル３に装着しているねじりばね３５の左右の両側脚片３５ｂ、３５ｂの内回転方向側の脚片３０ｂはベースブロック１Ｂ側に設けた対応するストッパ−４２Ｂにより動きが規制され、他方の脚片３５ｂは操作ハンドル３の対応するストッパ２９の押圧力を受けて撓みながらガイド部４１Ｂ上を移動する。従って操作ハンドル３の操作力が解除されると、ねじりばね３５の撓んだ側の脚片３５ｂの復帰力を受けて操作ハンドル３は通常位置に復帰することになる。
【００５１】
一方、操作ハンドル２の操作部２Ａを図１（ａ）において左方向に回転操作させると、つまり開口部１４内に侵入している突起片９とは反対方向へ回転操作すると、鍔部２ｃが開口部３２の回転方向の内側面に衝合して操作ハンドル３を同方向に共動回転させる。この際操作ハンドル２に装着しているねじりばね３０の回転方向の脚片３０ｂはベースブロック１Ａ側に設けた対応するストッパ４１Ａにより動きが規制され、他方の脚片３０ｂは操作ハンドル２の対応するストッパ３６の押圧力を受けて撓みながらガイド部４２Ａ上を移動する。同時に操作ハンドル３に装着しているねじりばね３５の回転方向側の脚片３０ｂも上述と同様にベースブロック１Ｂ側に設けた対応するストッパ−４１Ｂにより動きが規制され、他方の脚片３５ｂは操作ハンドル３の対応するストッパー３６の押圧力を受けて撓みながらガイド部４２Ｂ上を移動する。
【００５２】
そして操作ハンドル２を操作力が（ハ）の位置で解除されると、操作ハンドル２はねじりばね３０の撓んだ側の脚片３５ｂの復帰力を受けて操作ハンドル２は通常位置に復帰することになる。同時に操作ハンドル３もねじりばね３０の撓んだ側の脚片３５の復帰力を受けて通常位置に復帰する。
【００５３】
操作ハンドル２の通常位置から図１（ａ）において右方向の回転は操作部２Ａが突起片９に当たってそれ以上の動きが規制され、操作ハンドル２の鍔部２ｃの端部が開口部３２の回転方向の内面に当たる位置まで移動しないため操作ハンドル３を共動回転させない。
【００５４】
このようにして操作ハンドル２，３が回転操作されると、例えば操作ハンドル３の各孔３１ａ、３１ｂに装着している可動接点体３７の一方の可動接点３７Ａが操作ハンドル３の回転角度に応じて固定接点部１６Ａの固定接点２２ａ１〜２２ａ３と固定接点２２ｃ１、２２ｃ２との間を短絡若しくは開離したスイッチ出力と、他方の稼働接点３７Ｂが固定接点部１６Ｂの固定接点２３ａ〜２３ａ４と固定接点２３ｃ１，２３ｃ２との間を短絡若しくは開離したスイッチ出力を発生する。
【００５５】
同様に操作ハンドル２では孔３１ｃに装着している可動接点体３５の一方の可動接点３７Ａが操作ハンドル３の回転角度に応じて固定接点部１６Ａの固定接点２２ａ１〜２２ａ３と固定接点２２ｃ１、２２ｃ２との間を短絡若しくは開離したスイッチ出力と、操作ハンドル３の開口窓３ｄに嵌められた厚肉部２ｄの固定接点部１６Ｂの面より露出する可動接点３７Ｂが固定接点部１６Ｂの固定接点２３ａ〜２３ａ４と固定接点２３ｃ１，２３ｃ２との間を短絡若しくは開離したスイッチ出力を発生し、更に孔３１ｄに装着している可動接点３７Ａが固定接点部１６Ａの固定接点２２ｂ１と固定接点２２ｃ１，２２ｃ２との間を短絡若しくは開離したスイッチ出力と、可動接点３７Ｂが固定接点部１６Ｂの固定接点２３ｂ１と固定接点２３ｃ１〜２３ｃ３との間を短絡若しくは開離したスイッチ出力を発生を発生する。
【００５６】
これら出力端子群４によって構成されるコネクタ部５から外部回路にスイッチ出力は取り出され、そのスイッチ出力の組み合わせを外部回路で判定することで、操作ハンドル２，３に連動機構を介して連結されるシフトレバーの位置を検出することができることになる。
【００５７】
尚図２（ａ）中、操作ハンドル２の鍔部２ｃの外側に装着されるフィルム状の防塵シートである。
【００５８】
【発明の効果】
請求項１の発明では、一方に出力端子群を備え、これら出力端子に電気的に接続された円弧状の複数の固定接点を並行配設した固定接点部を内側平面に配設し、固定接点部側を相対するように重ね結合して器体を構成する２つのベースブロックと、一端が軸で軸支されて該軸を中心として上記両ベースブロック間に形成される空間内をベースブロックに沿うようように回転自在に配置された、上記軸を要とする略扇状の第１の操作ハンドルと、上記軸に軸支されて該軸を中心として両空間内をベースブロックに沿い且つ第１の操作ハンドルに並行するように回転自在に配置された略棒状の第２の操作ハンドルと、第１の操作ハンドルの中央部に形成された開口窓と、回転移動方向で上記開口窓の両側に位置する第１の操作ハンドル部位に貫通するように設けられ、第１の操作ハンドルの両側部より夫々露出した接触面を上記両固定接点部の対応する固定接点に第１の操作ハンドルの回転移動時に接触・開離させる複数の第１の可動接点体群と、第１の操作ハンドルの開口窓に対応する第２の操作ハンドルの部位に貫通するように設けられ、第２の操作ハンドルの両側部より夫々露出した接触面の一方を開口窓を介して第１の操作ハンドル側の上記固定接点部の対応する固定接点に、接触面の他方を第２の操作ハンドル側の固定接点部の対応する固定接点に、第２の操作ハンドルの回転移動時に接触・開離させる複数の第２の可動接点体群とを有し、一方の操作ハンドルの他端部近辺に一体に、他方の操作ハンドルの回転移動軌跡に直交する方向に突出した突片を設け、この突片に他方の操作ハンドルを所定範囲で回転移動を規制とともに一方の操作ハンドルの回転時に他方の操作ハンドルを係合して共動回転させるように他方の操作ハンドルを貫挿させる切欠部を設けているので、固定接点部に対して操作ハンドルの可動接点体を接触・開離させるための構造をコンパクトにすることができ、そのため全体として小型化が可能となり、また一方の操作ハンドルの回転操作で他方の操作ハンドルを共動回転させる構造が簡単で、しかも他方の操作ハンドルの回転の単独操作も可能となり、操作ハンドルの多様な位置検出ができるという効果があり、更に操作ハンドルの回転によって接点開閉を行うため、円弧の外側に固定接点を配置することにより、切り換え位置の精度を良くできるという効果がある。
【００５９】
請求項２の発明では、請求項１の発明において、上記両操作ハンドルの各可動接点体は夫々の操作ハンドルの両側面に貫通する孔の両側開口部付近に夫々移動自在に収納した２つの可動接点と、両可動接点間に介在し夫々の可動接点の接触面を外方向に突出させるように付勢する導電材からなるコイルスプリングとで構成しているので、可動接点体の組み立てが容易で、しかも操作ハンドルのがたつきなどの影響を受けずコイルスプリングの力が一定となるため、接触圧力のばらつきが少なく安定した接触抵抗が得られ、また操作ハンドルとベースブロックとの間の摩擦が発生しないため安定したハンドル操作加重が得られるという効果がある。
【図面の簡単な説明】
【図１】本発明の動作説明図である。
【図２】（ａ）は同上の正面図である。
（ｂ）は同上の一側面図である。
（ｃ）は同上の下面図である。
【図３】（ａ）は同上の他側面図である。
（ｂ）は同上の上面図である。
【図４】（ａ）は同上に用いる一方のベースブロックの上面図である。
（ｂ）は同上に用いる一方のベースブロックの内側の側面図である。
【図５】（ａ）は同上に用いる一方のベースブロックにおける上面図である。
（ｂ）は同上に用いる一方のベースブロックの外側の側面図である。
（ｃ）は同上に用いる一方のベースブロックにおける下面図である。
（ｄ）は同上に用いる一方のベースブロックの水平断面図である。
【図６】（ａ）は同上に用いる他方のベースブロックの上面図である。
（ｂ）は同上に用いる他方のベースブロックの外側の側面図である。
【図７】（ａ）は同上に用いる一方のベースブロックにおける上面図である。
（ｂ）は同上に用いる一方のベースブロックの内側の側面図である。
（ｃ）は同上に用いる一方のベースブロックにおける下面図である。
（ｄ）は同上に用いる一方のベースブロックの水平断面図である。
【図８】（ａ）は同上に用いる一方の固定接点部の水平断面図である。
（ｂ）は同上に用いる一方の固定接点部の側断面図である。
（ｃ）は同上に用いる一方の固定接点部の内側からみた正面図である。
（ｄ）は同上に用いる一方の固定接点部の一側面図である。
【図９】（ａ）は同上に用いる他方の固定接点部の水平断面図である。
（ｂ）は同上に用いる他方の固定接点部の側断面図である。
（ｃ）は同上に用いる他方の固定接点部の内側からみた正面図である。
（ｄ）は同上に用いる他方の固定接点部の一側面図である。
【図１０】（ａ）は同上に用いる一方の操作ハンドルの水平断面図である。
（ｂ）は同上に用いる一方の操作ハンドルの一側面図である。
（ｃ）は同上に用いる一方の操作ハンドルの下面図である。
（ｄ）は同上に用いる一方の操作ハンドルの他側面図である。
（ｅ）は同上に用いる一方の操作ハンドルの正面図である。
【図１１】（ａ）は同上に用いる一方の復帰用ねじりばねの側面図である。
（ｂ）は同上に用いる一方の復帰用ねじりばねの正面図である。
【図１２】（ａ）は同上に用いる他方の操作ハンドルの一側面図である。
（ｂ）は同上に用いる他方の操作ハンドルの下面図である。
（ｃ）は同上に用いる他方の操作ハンドルの側断面図である。
（ｄ）は同上に用いる他方の操作ハンドルの上面図である。
（ｅ）は同上に用いる他方の操作ハンドルの正面図である。
【図１３】（ａ）は同上に用いる他方の復帰用ねじりばねの側面図である。
（ｂ）は同上に用いる他方の復帰用ねじりばねの正面図である。
【図１４】同上の可動接点体の配置説明図である。
【図１５】同上の可動接点と固定接点の説明図である。
【図１６】同上の可動接点と固定接点とリブの関係説明図である。
【図１７】同上の側面断面図である。
【符号の説明】
１器体
１Ａ，１Ｂベースブロック
２，３操作ハンドル[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rotary switch in which two operation handles are interlocked.
[0002]
[Prior art]
Conventionally, the rotary switch for detecting the operation position of the shift lever of an automatic vehicle has only one operation lever. However, a MT switch equipped with a sequential manual transmission has recently been provided with a switch for detecting the position of the shift lever. It ’s like that.
[0003]
[Problems to be solved by the invention]
By the way, as the above switch, for example, it is necessary to detect the reverse position, the neutral position, the shift position, and the shift up / down operation at the shift position. There is a need for a rotary switch that has an operation handle for detecting the operation of a downshift and that has an interlocking relationship with both operation handles. For switches, large size and ease of assembly become problems.
[0004]
The present invention has been made in view of the above points, and an object of the present invention is to provide a rotary switch that can be manufactured in a small size, that is easy to assemble, and that has a high switching position accuracy. There is.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, there is provided an inner side of a fixed contact portion provided with an output terminal group on one side and a plurality of arc-shaped fixed contacts electrically connected to the output terminals arranged in parallel. Two base blocks that are arranged in a plane and overlapped with each other so that the fixed contact portions are opposed to each other to form the body, and one end is pivotally supported by a shaft and formed between the two base blocks around the shaft. A first fan-shaped operating handle that requires the shaft and is rotatably arranged along the base block, and is supported by the shaft in both spaces around the shaft. A second rod-like operation handle that is rotatably arranged along the base block and parallel to the first operation handle, an opening window formed in the center of the first operation handle, and rotational movement On the two sides of the opening window in the direction The contact surfaces which are provided so as to penetrate through the operation handle portion of the first operation handle and are exposed from both side portions of the first operation handle are contacted / opened to the corresponding fixed contacts of the two fixed contact portions when the first operation handle is rotated. A plurality of first movable contact body groups to be separated from each other and a portion of the second operation handle corresponding to the opening window of the first operation handle are provided so as to be exposed from both side portions of the second operation handle. One of the contact surfaces is connected to the corresponding fixed contact of the fixed contact portion on the first operation handle side through the opening window, and the other contact surface is set to the corresponding fixed contact of the fixed contact portion on the second operation handle side. And a plurality of second movable contact groups that are brought into contact with and separated from each other when the second operating handle is rotationally moved, and the rotational movement locus of the other operating handle is integrally formed in the vicinity of the other end of the one operating handle. Protruding in the direction perpendicular to A protruding piece is provided, and the other operating handle is passed through the protruding piece so that the other operating handle is restricted from rotating within a predetermined range, and the other operating handle is engaged and co-rotated when one operating handle rotates. It is characterized by providing a notch portion to be inserted.
[0006]
According to a second aspect of the present invention, in the first aspect of the invention, the two movable contact bodies of the two operation handles are movably accommodated in the vicinity of both side opening portions of the holes penetrating the both side surfaces of the respective operation handles. It comprises a contact and a coil spring made of a conductive material that is interposed between the two movable contacts and biases the contact surface of each movable contact to protrude outward.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below with reference to an embodiment.
[0008]
2 and 3 show the external appearance of the present embodiment, and the rotary switch of the present embodiment is arranged in parallel with the fan 1 having a substantially fan-shaped side surface and the internal space of the fan body 1. One end is pivotally supported at the main part of the body 1, and the operation parts 2A and 3A of the two operation handles 2 and 3 that are rotatable around the pivot point are projected outside through the opening window 15 on the end surface of the body 1. These operation parts 2A and 2B are used by being connected to an interlocking mechanism for interlocking with a mechanism part of a shift lever of an automobile, for example.
[0009]
A connector portion 5 having an output terminal group 4 for outputting a switch signal to the outside is provided at one end portion of the vessel body 1.
[0010]
The container 1 includes a first base block 1A made of a synthetic resin (PBT) molded product shown in FIGS. 4 and 5, and a second base made of a synthetic resin (PBT) molded product shown in FIGS. The block 1B is overlapped, and the blocks 1A and 1B are coupled and fixed by fastening a nut 8 to a screw body 7 inserted through attachment holes 6 formed in the outer peripheral edge.
[0011]
The first base block 1A has a fan-like shape outside the plane, and a fan-shaped slightly deep concave plane 10A is formed on the inner side from the main part to the central part. A slightly shallow concave plane 10B is formed in the distal direction, and an arc-shaped rib 11 is integrally formed at a boundary portion between the concave plane 10A and the concave plane 10B.
[0012]
A bearing hole 13 for receiving the rotating shaft 12 (see FIG. 7) formed integrally with the second base block 1B is recessed in the main part of the concave plane 10A.
[0013]
Further, the rib 11 is formed with a guide portion 41A for guiding a return torsion spring 30 (see FIG. 13) holding the operation handle 2 by forming a surface lower than the height of the rib 11 by cutting out the central portion with a constant width. Further, a stopper 42A for restricting the movement of the return torsion spring 30 and accumulating the return spring force is constituted by standing wall surfaces along the ribs 11 at both ends of the guide portion 41A.
[0014]
In addition, a protruding piece 9 that is integrally protruded inward is provided at a position slightly from the center of the tip of the base block 1A, and this protruding piece 9 is formed on the peripheral wall of the tip of the base block 1B as will be described later. It fits in the recessed part 14 to be made. The concave plane 10B constitutes an arrangement portion for arranging a fixed contact portion 16A of FIG.
[0015]
The other base block 1B, which is overlapped with the base block 1A configured as described above, is formed in a substantially sector shape as shown in FIGS. A fan-shaped concave plane 17A that is slightly deeper than the concave plane 10A is formed, and a concave plane 17B that is deeper than the concave plane 17A is formed from the concave plane 17A to the tip of the base block 1B. Then, an arc-shaped rib 18 is integrally formed at the boundary portion between the both concave planes 17A and 17B, and a surface lower than the height of the rib 18 is formed at the center of the rib 18 by cutting out the central portion with a certain width. A return torsion spring 35 (see FIG. 11) that holds this surface with the operation handle 3 is used as a guide portion 41B for sliding, and the return torsion spring 3 is formed by standing wall surfaces along the ribs 18 at both ends of the guide portion 41B. Constitute a stopper 42B for to restrict the movement of the accumulated return spring force.
[0016]
And the above-mentioned rotating shaft 12 which pivotally supports the operation handles 3 and 2 is provided integrally projectingly at the main part of the fan-shaped concave plane 17A.
[0017]
Further, a concave groove 19 in which the output terminal group 4 constituting the connector portion 5 is disposed is formed on one side of the concave plane 17B, and a plug insertion port 20 is opened on the side wall of the base block 1B at the tip of the concave groove 19. is doing. The opening of the groove 19 extending from the insertion port 20 to the concave plane 10B is covered with the base block 1A so as to close the opening of the groove 19.
[0018]
Further, the concave plane 17B constitutes an arrangement portion for arranging a fixed contact portion 16B of FIG.
[0019]
The above-described recess 14 is formed in the central portion of the peripheral wall at the tip of the base block 1B along the concave plane 17B. As shown in FIG. 6A, the recess 14 has a wide opening width from the center to the notch opening and a narrow opening width from the center to the back end, and the protruding piece 9 of the base block 1A on the wide opening width side. As shown in FIG. 2A, a substantially Z-shaped opening window 15 is formed.
[0020]
The fixed contact portion 16A disposed on the concave plane 10B of the base block 1A and the fixed contact portion 16B disposed on the concave plane 17B of the base block 1B are both arc-shaped resin-molded substrates 21A as shown in FIGS. , 21B, an arc-shaped fixed contact which will be described later exposed on the substrate surface, and an output terminal group 4 which protrudes from the end, and the opposite surface when the base blocks 1A and 1B are joined is exposed to the fixed contact. Protrusions 24a and 24b that are arranged so as to face each other and are in contact with each other at both ends of each of the resin-molded substrates 21A and 21B are integrally projected in opposite directions, and the resin-molded substrates 21A and 21B Since the protruding portions 24a and 24b face each other, a space in which the operation handles 2 and 3 can be moved is formed between the resin molded substrates 21A and 21B.
[0021]
Here, in one resin-molded substrate 21A, two concentric arcs parallel to each other at equal intervals as shown in FIG. 8 have two arc-shaped fixed contacts 22c1 and 22c2 with a predetermined length on the central arc line, respectively. These two fixed contacts 22c1 and 22c2 form a common contact and are formed by the same conductive plate, and are externally connected by a common output terminal formed extending from one end of the conductive plate. Connected to the circuit. On the other hand, on the outer arc line, three fixed contacts 22a1 to 22a3 are respectively formed with a predetermined length and a predetermined interval, and each fixed contact 22a1 to 22a3 is formed by a separate conductive plate, Each of the conductive plates is connected to an external circuit by an output terminal extended from one end. A fixed contact 22b1 having a predetermined length is formed on the inner arc approximately at the center, and is connected to an external circuit by an output terminal formed extending from one end of a conductive plate forming the fixed contact 22b1.
[0022]
As shown in FIG. 9, in the other resin-molded substrate 21B, three arcuate fixed contacts 23c1 to 23c3 having a predetermined length and a predetermined length are arranged on a central arc line in three concentric arcs parallel at equal intervals. These three fixed contacts 23c1 to 23c3 form a common contact, are formed by the same conductive plate, and are connected to an external circuit by a common output terminal formed extending from one end of the conductive plate. Connected. On the other hand, on the outer arc line, four fixed contacts 23a1 to 23a4 are formed with predetermined lengths and predetermined intervals, respectively, and the central fixed contacts 23a2 to 23a3 are formed by the same conductive plate, The fixed contacts 23a1 and 23a4 are formed by separate conductive plates, and are connected to an external circuit by an output terminal formed extending from one end of each conductive plate. A fixed contact 23b1 having a predetermined length is formed on the inner arc line at a position deviated slightly toward the other end side from the center, and an output terminal extended from one end of the conductive plate forming the fixed contact 23b1. Connected to external circuit.
[0023]
Here, the above-mentioned three parallel arcs of the resin-molded substrates 21A and 21B are arranged on the concave planes 10B and 17B of the base blocks 1A and 1B, and are the centers of the rotary shafts 12, that is, the rotation centers of the operation handles 2 and 3. The center.
[0024]
Next, the operation handles 2 and 3 used in this embodiment will be described.
[0025]
First, as shown in FIG. 10, the operation handle 3 is made of a resin molded product whose outer shape is formed in a fan shape, and a shaft through which the rotating shaft 12 of the base block 1A is inserted into one end side (fan-shaped main portion side) of one surface side. A cylindrical portion 27 penetrating the hole 26 is integrally provided. Further, a stepped portion 3a extending to both sides is formed at a substantially central position of the operation handle 3 so that the portion of the operation handle 3 extending from the one end side to the substantially central portion protrudes from the portion extending from the approximate center to the other end side. To be high. The cylindrical portion 27 constitutes a spring seat into which the torsion portion 35a of the torsion spring 35 shown in FIGS. 11 (a) and 11 (b), which is a return spring for the operation handle 3, is fitted.
[0026]
Further, on one side of the operation handle 3, standing walls 3b are integrally formed on both sides of the other end of the operation handle 3 and on both sides from the other end to the position in the vicinity of the stepped portion 3a, and both sides of the U-shaped standing wall 3b are formed. Stoppers 29 and 29 are provided so as to face each other at the front end of the torsion spring 35 so that both side leg pieces 35b and 35b of the torsion spring 35 are brought into elastic contact with each other and the expansion angle of both side leg pieces 35b and 35b is regulated to be constant. Furthermore, the opening window 3d is formed in the part enclosed by the standing wall 3b formed in the U-shape.
[0027]
In addition, holes 31a and 31b for mounting the movable contact body, in which both end directions of the operation handle 3 are long and the center is widened on both sides, are formed in the both sides of the standing wall 3 near the tip of the operation handle 3. is there. The positions of both end portions of these holes 31a and 31b are such that the operation handle 3 is rotatably supported on the rotating shaft 12 of the base block 1B, and the fixed contact portions 16A and 16B are recessed planes 10B of the berth blocks 1A and 1B, respectively. , 17B and the arcuate lines on the outer side where the fixed contacts 22a1 to 22a3 and 23a1 to 23a4 to be formed on the fixed contact portions 16A and 16B are respectively arranged when incorporated in the vessel 1 and the fixed contact 22c1 , 22c2, and 23c1 to 23c3 are formed so as to straddle the central arc line, and the center line in the width direction of each hole 31a and 31b is positioned on a line passing through the rotation center of the operation handle 3. Yes.
[0028]
Further, a flange portion 3c is integrally provided on the peripheral portion of the standing wall 3b on the distal end side, and a notch portion is provided at a substantially central portion of a piece protruding so as to be orthogonal to the rotational movement locus side of the operation handle 2 of the flange portion 3c. The opening part 32 which consists of is formed. Further, an operation portion 3A is integrally provided on the outer surface of the flange portion 3c corresponding to the center position in the both sides of the opening portion 32.
[0029]
Further, as shown in FIG. 12, the operation handle 2 is formed of a resin molded product formed in a substantially rod shape having a narrow width, and is a cylinder having a shaft hole 33 through which the rotating shaft 12 of the base block 1A is inserted at one end portion on one surface side. The part 34 is provided integrally. Further, a step portion 2a extending to both sides is formed at a substantially central position of the operation handle 2 so that the portion of the operation handle 2 extending from the one end side to the substantially central portion protrudes from the portion extending from the approximate center to the other end side. The direction is high. The cylindrical portion 34 constitutes a spring seat into which the torsion portion 30a of the torsion spring 30 shown in FIGS. 13A and 13B, which is a return spring for the operation handle 3, is fitted. And the protrusion part 2b is integrally formed in the both sides of the one end side of the vicinity of the said step part 2a, and both the leg pieces 30b and 30b of the torsion spring 30 are elastically contacted with this protrusion part 2b, and both side leg pieces 30b and 30b are expanded. Stoppers 36 and 36 for restricting the angle are integrally projected.
[0030]
Further, a thick portion 2d is formed at a substantially central portion on the other surface side between the step portion 2a and the distal end portion of the operation handle 2. The thick portion 2d has a hole 31c for mounting a movable contact body, 31d is formed in parallel so that one end position of one hole 31c is the other end position of the other hole 31d. The positions of both end portions of the one hole 31c are such that the operation handle 2 is rotatably supported on the rotating shaft 12 of the base block 1B, and the fixed contact portions 16A and 16B are recessed planes 10B and 17B of the berth blocks 1A and 1B, respectively. When the fixed contacts 22a1 to 22a3 and 23a1 to 23a4 are formed on the fixed contact portions 16A and 16B, respectively, and the fixed contact points 22c1 and 22c2 are arranged. , 23c1 to 23c3, and the center arc line in the width direction of the hole 31c is positioned on a line passing through the rotation center of the operation handle 2.
[0031]
The positions of both end portions of the other hole 31d are the central arc line where the fixed contacts 22c1, 22c2, and 23c1 to 23c3 of the fixed setting portions 16A and 16B are disposed, and the fixed contacts 22b1 and 23b1, respectively. The center line in the width direction of the hole 31d is positioned on a line passing through the rotation center of the operation handle 2.
[0032]
A flange 2c is integrally formed at the tip of the operation handle 2, and the operation portion 2A is integrally projected from the surface of the flange 2c.
[0033]
Next, the movable contact body 37 mounted in the holes 31a, 31b, 31c, 31d of the operation handles 2, 3 will be described with reference to FIGS. 14 (a) and 14 (b). Here, in order to simplify the description, a case will be described in which the operation handle 2 is mounted in a hole 31c formed through the thick portion 2d of the operation handle 2.
[0034]
As shown in the figure, the movable contact body 37 includes two U-shaped movable contacts 37A and 37B, and a coil made of a conductive material interposed between the movable contacts 37A and 37B and energizing the movable contacts 37A and 37B. A spring 37C is formed in the hole 31c so that a central piece that forms the contact surface of both the movable contacts 37A and 37B is exposed from both ends of the hole 31c. At the predetermined rotation position of the operation handle 2, for example, the outer surface of the central piece of the movable contact 37A is elastically contacted with the fixed contacts 22a1 and 22c1 of the fixed contact portion 16A by the bias of the coil spring 37C, and between the fixed contacts 22a1 and 22c1. In the fixed contact portion 16B on the opposite side, the movable contact 37B rides on the arc-shaped rib 38 formed integrally with the resin molded substrate 21B between the positions where the fixed contacts 23a1,. It becomes.
[0035]
In other words, the fixed contacts of the fixed contact portions 16A and 16B arranged on the two adjacent arc lines across which the movable contact 37A or 37B straddles are ribs higher than the contact surface of the fixed contact between the arc lines. Thus, it is determined whether the fixed contacts are separated or short-circuited by the movable contact 37A or 37B. As shown in FIGS. 8 and 9, an arc-shaped rib 38 is appropriately formed on the resin molded substrate 21A, By forming it in 21B, the operation handles 2 and 3 of the operation handles 2 and 3 are combined depending on the combination of the presence or absence of short-circuit output between the fixed contacts by the movable contacts 37A and 37B of the movable contact body 37 mounted in the holes 31a to 31c of the operation handles 2 and 3, Various rotational positions can be detected.
[0036]
Further, the contact surface of the movable contact 37A (or 37B) is an R surface as shown in FIG. 15 (a), and the end surface of the rib 38 on which the movable contact 37A (or 37B) rides and performs contact release is the R surface. By forming the movable contact point 37A (or 37B) on the rib 38, the end point of the rib 38 is changed to the end surface of the rib 38 by repeating the movement of the movable contact points 37A and 37B on the rib 38 as shown in FIG. Wear (x) as shown in FIG. 5, but the contact surface of the fixed contact (denoted by reference numeral 22) is also worn (y), so that the wear can be balanced, and as a result, there is little deviation between the landing point and the contact position. .
[0037]
Further, as shown in FIG. 16, a rib 38 is formed between the fixed contacts (for example, 22a1 and 22c1) on both sides, and the movable contact 37A rides on the rib 38 so that the fixed contacts 22a1 and 22c1 are both cut off. The cut is good.
[0038]
Further, a gap a is provided between the side edge of the contact surface of the fixed contacts (22a1 and 22c1 in FIG. 15) on both sides facing the end surface of the rib 38 and the side edge of the adjacent rib 38 as shown in the figure. A gap is provided between a certain end face.
[0039]
Thus, when assembling the rotary switch of the present embodiment, first, the cylindrical portions 27 and 34 are directed outward with the respective members of the movable contact body 37 mounted in the holes 31a to 31d of the operation handles 2 and 3, respectively. Position the shaft holes 26 and 33 to communicate with each other and overlap the other surfaces of the operation handles 2 and 3. In this case, washers (not shown) are interposed in the openings of the shaft holes 26 and 33. Then, the flange 2c of the operation handle 2 is fitted into the opening 32 of the flange 3c of the operation handle 3 so as to be movable in both directions, the operation portion 2A is projected to the outside, and the thick portion 2d of the operation handle 2 is moved to the operation handle. 3, and the end face of the thick part 2 d is exposed to the opposite side of the operation handle 3.
[0040]
At this time, the other surface side of the protruding portion 2b of the operation handle 2 overlaps the other surface side of both sides of the opening window 3d of the operation handle 3, and one surface of the portion from the step 2a position of the operation handle 2 to the collar portion 2c is opened. The height is slightly lower than the other surfaces of the operation handle 3 on both sides of the window 3d.
[0041]
In this way, the resin molded substrates 21A and 21B of the fixed contact portions 16A and 16B are arranged to face each other from both sides of the block in which the two operation handles 2 and 3 are assembled and overlapped so that the protruding portions 24a and 24b on both sides are in contact with each other. The operation handles 2 and 3 are coupled to each other. At this time, the flange portion 3c of the operation handle 3 covers the outer peripheral edge of the space formed by the resin molded substrates 21A and 21B with the flange portion 2c of the operation handle 2 facing the opening portion 32, and the resin molded substrate 21A. , 21B is movably disposed along the distal end surface, and the operation portions 2A, 3B of the operation handles 2, 3 project outward.
[0042]
Then, after assembling the fixed contact portions 16A and 16B, the torsion portion 35a of the torsion spring 35 is fitted into the cylindrical portion 27 of the operation handle 3, and both leg pieces 35b and 35b opened in a V shape of the torsion spring 35 are bent in the opposite direction. The both side leg pieces 35b and 35b are elastically brought into contact with the stoppers 29 and 29 by being fitted between the stoppers 29 and 29 of the operation handle 3. Similarly, the torsion portion 30a of the torsion spring 30 is fitted into the cylindrical portion 34 of the operation handle 2, and the stoppers 36, 36 of the operation handle 3 are bent while the leg pieces 30b, 30b opened in a V shape of the torsion spring 30 are bent in the opposite direction. The both side leg pieces 30b, 30b are elastically brought into contact with the stoppers 36, 36 by being inserted therebetween.
[0043]
Further, after the torsion springs 30 and 35 are mounted, the shaft portion 26 of the cylindrical portion 27, the hole of the washer interposed, and the cylindrical portion 34 of the operating handle 2 are arranged with the cylindrical portion 27 side of the operating handle 3 facing the base block 1B. An output terminal group in which the shaft hole 33 is inserted into the rotating shaft 12 of the base block 1B, the fixed contact portion 16B is arranged on the concave plane 17B of the base block 1B, and the concave groove 19 protrudes from one end of the fixed contact portions 16A and 16B. 4 is stored. At this time, the stoppers provided at both ends of the guide portions 41B of the ribs 18 formed at the center of the base block 1B are the portions of the both side leg pieces 35b, 35b ahead of the positions of the torsion springs 35 in contact with the stoppers 29, 29. -42B and 42B are arranged so as to be movable with respect to the guide portion 41B.
[0044]
Further, the flange portion 3c of the operation handle 3 arranged along the outer opening edge of the space formed by the resin molded substrates 21A and 21B is formed by the rear surface of the peripheral wall at the front end side of the base block 1B and the resin molded substrates 21A and 21B. It will be movably contained in the gap formed between the outer opening edge of the space. Here, the width dimension in the longitudinal direction of the flange 3c is formed longer than the width dimension in the corresponding direction of the recess 14 formed in the peripheral wall on the front end side of the base block 1B.
[0045]
And the operation part 3A of the operation handle 3 protrudes outside from the base block 1B through the recess 14 from the side located on the bottom side of the concave plane 10B of the base block 1B.
[0046]
Now, after assembling to the base block 1B, the base block 1A is attached from one side of the operation handle 2. At this time, the tip of the rotary shaft 12 protruding from the shaft hole 33 of the cylindrical portion 34 of the operation handle 2 is rotatably fitted in the bearing hole 13 formed in one end portion of the concave plane 10A of the base block 1A, and the resin molded substrate 21A is fitted. It arrange | positions in the concave plane 10B of the base block 1A. At this time, the stoppers provided at both ends of the guide portion 41A that the portions of the both side leg pieces 30b, 30b of the torsion spring 30 closer to the torsion portion 30a than the position in contact with the stoppers 26, 26 are formed on the rib 11 of the base block 1A. 42A and 42A are arranged so as to be movable with respect to the guide portion 41A.
[0047]
After the base block 1A is covered with the base block 1A in this way, both the blocks 1A and 1B are fixed with screws, so that the operation handles 2 and 3 and the fixed contact portions 16A and 16B are shown in FIG. The rotary switch housed inside is completed.
[0048]
Next, the operation of the rotary switch according to the present invention will be briefly described with reference to FIGS. First, it is assumed that the operation handles 2 and 3 are rotated by an interlocking mechanism coupled to a shift lever of an automobile, for example. When the shift lever is in the normal position, the operation handles 2 and 3 are respectively The movement of the mounted torsion springs 30 and 35 is restricted to the state shown in the figure by the stoppers 42A and 42B of the base blocks 1A and 1B, and the collar portion 2c of the operation handle 2 is positioned at the center of the opening 32 of the operation handle 3. In this state, the operation portion 2A of the operation handle 2 and the operation portion 3A of the operation handle 3 are in a position where they substantially overlap.
[0049]
In this state, the operation handle 3 has a position where the right or left end surface of the collar portion 2c of the operation handle 2 hits the inner end surface of the left or right end of the opening 32 of the operation handle 3 ((b) in FIG. ) To the left or right.
[0050]
At this time, the movement of the leg pieces 30b on the inner rotation direction side of the left and right leg pieces 35b, 35b of the torsion spring 35 attached to the operation handle 3 is restricted by the corresponding stopper 42B provided on the base block 1B side. The other leg piece 35b moves on the guide portion 41B while receiving the pressing force of the corresponding stopper 29 of the operation handle 3 and bending. Therefore, when the operation force of the operation handle 3 is released, the operation handle 3 returns to the normal position in response to the return force of the leg piece 35b on the side where the torsion spring 35 is bent.
[0051]
On the other hand, when the operating portion 2A of the operating handle 2 is rotated in the left direction in FIG. 1A, that is, when the operating portion 2A is rotated in the direction opposite to the protruding piece 9 entering the opening 14, the collar portion 2c is moved. The operation handle 3 is rotated in the same direction by colliding with the inner surface of the opening 32 in the rotation direction. At this time, the movement of the leg piece 30b in the rotational direction of the torsion spring 30 attached to the operation handle 2 is restricted by the corresponding stopper 41A provided on the base block 1A side, and the other leg piece 30b corresponds to the operation handle 2. It moves on the guide part 42A while receiving the pressing force of the stopper 36 and bending. At the same time, the movement of the leg piece 30b on the rotational direction side of the torsion spring 35 attached to the operation handle 3 is also restricted by the corresponding stopper 41B provided on the base block 1B side, and the other leg piece 35b is operated. It moves on the guide part 42B while receiving the pressing force of the corresponding stopper 36 of the handle 3 and bending.
[0052]
When the operation handle 2 is released at the position (c), the operation handle 2 receives the restoring force of the leg piece 35b on the bent side of the torsion spring 30, and the operation handle 2 returns to the normal position. It will be. At the same time, the operating handle 3 also receives the restoring force of the leg piece 35 on the bent side of the torsion spring 30 and returns to the normal position.
[0053]
In the clockwise rotation in FIG. 1A from the normal position of the operation handle 2, the operation portion 2 </ b> A hits the protruding piece 9 and further movement is restricted, and the end portion of the collar portion 2 c of the operation handle 2 is rotated by the opening portion 32. The operation handle 3 is not co-rotated because it does not move to the position where it hits the inner surface in the direction.
[0054]
When the operation handles 2 and 3 are rotated in this way, for example, one movable contact 37A of the movable contact body 37 mounted in each hole 31a and 31b of the operation handle 3 corresponds to the rotation angle of the operation handle 3. The switch output in which the fixed contacts 22a1 to 22a3 and the fixed contacts 22c1 and 22c2 of the fixed contact portion 16A are short-circuited or separated, and the other operating contact 37B is the fixed contacts 23a to 23a4 and the fixed contacts 23c1 of the fixed contact portion 16B. , 23c2 is short-circuited or disconnected.
[0055]
Similarly, in the operation handle 2, one movable contact 37 </ b> A of the movable contact body 35 mounted in the hole 31 c is fixed to the fixed contacts 22 a 1 to 22 a 3 and the fixed contacts 22 c 1 and 22 c 2 of the fixed contact portion 16 A according to the rotation angle of the operation handle 3. The switch output that is short-circuited or separated between the movable contact 37B and the movable contact 37B that is exposed from the surface of the fixed contact portion 16B of the thick portion 2d that is fitted to the opening window 3d of the operation handle 3 are fixed contacts 23a to 23a of the fixed contact portion 16B. 23a4 and the fixed contacts 23c1 and 23c2 are short-circuited or separated from each other to generate a switch output, and the movable contact 37A mounted in the hole 31d is connected between the fixed contact 22b1 and the fixed contacts 22c1 and 22c2 of the fixed contact portion 16A. The switch output is short-circuited or separated, and the movable contact 37B is a fixed contact 23b1 and a fixed contact 23c1 of the fixed contact 16B. The switch output you release shorted or open between 23c3 generates occur.
[0056]
The switch output is taken out to the external circuit from the connector section 5 constituted by these output terminal groups 4, and the combination of the switch outputs is determined by the external circuit, so that it is connected to the operation handles 2 and 3 through the interlocking mechanism. The position of the shift lever can be detected.
[0057]
In FIG. 2 (a), it is a film-like dustproof sheet attached to the outside of the collar portion 2c of the operation handle 2.
[0058]
【The invention's effect】
According to the first aspect of the present invention, a fixed contact portion is provided on one inner side plane, which is provided with an output terminal group on one side, and in which a plurality of arc-shaped fixed contacts electrically connected to the output terminals are arranged in parallel. Two base blocks that constitute a body by overlapping and joining the part sides facing each other, and a space formed between the two base blocks with one end pivotally supported by a shaft as a base block A substantially fan-shaped first operating handle that is pivotally disposed along the shaft and is pivotally supported by the shaft, and is supported by the shaft along the base block in both spaces with the shaft as a center. A substantially rod-shaped second operation handle that is rotatably arranged so as to be parallel to the operation handle, an opening window formed at the center of the first operation handle, and on both sides of the opening window in the rotational movement direction. Penetration through the first operating handle A plurality of first contact surfaces that are exposed from both side portions of the first operation handle and are contacted / separated when the first operation handle is rotationally moved to the corresponding fixed contacts of the two fixed contact portions. The movable contact body group and the second operation handle corresponding to the opening window of the first operation handle are provided so as to penetrate through one of the contact surfaces exposed from both sides of the second operation handle. The second operation handle is connected to the corresponding fixed contact of the fixed contact portion on the first operation handle side through the opening window, the other contact surface to the corresponding fixed contact portion of the fixed contact portion on the second operation handle side. And a plurality of second movable contact body groups that are contacted / separated at the time of rotational movement, and project in a direction perpendicular to the rotational movement locus of the other operation handle integrally with the vicinity of the other end of one operation handle. Provided with a protruding piece, Since the rotation movement of the operation handle is restricted within a predetermined range, a notch portion is provided through which the other operation handle is inserted so that the other operation handle is engaged and rotated together when the one operation handle rotates. The structure for bringing the movable contact body of the operation handle into contact with and separating from the fixed contact portion can be made compact, so that the overall size can be reduced, and the other operation can be performed by rotating one operation handle. The structure of rotating the handle in a co-rotation is simple, and the operation of the other operation handle can be performed independently, and it is possible to detect various positions of the operation handle. By arranging the fixed contact outside the arc, there is an effect that the accuracy of the switching position can be improved.
[0059]
According to a second aspect of the present invention, in the first aspect of the invention, the two movable contact bodies of the two operation handles are movably accommodated in the vicinity of both side opening portions of the holes penetrating the both side surfaces of the respective operation handles. Since it is composed of a contact and a coil spring made of a conductive material that is interposed between both movable contacts and urges the contact surface of each movable contact to protrude outward, the assembly of the movable contact body is easy. In addition, since the force of the coil spring is constant without being affected by shakiness of the operation handle, stable contact resistance is obtained with little variation in contact pressure, and there is no friction between the operation handle and the base block. Since it does not occur, there is an effect that a stable steering operation weight can be obtained.
[Brief description of the drawings]
FIG. 1 is an operation explanatory diagram of the present invention.
FIG. 2 (a) is a front view of the same.
(B) is the one side view same as the above.
(C) is a bottom view of the above.
FIG. 3A is another side view of the same.
(B) is a top view of the same.
FIG. 4A is a top view of one base block used in the above.
(B) is a side view of the inside of one base block used in the above.
FIG. 5A is a top view of one base block used in the above.
(B) is a side view of the outer side of one base block used in the above.
(C) is a bottom view of one base block used in the above.
(D) is a horizontal sectional view of one base block used in the above.
FIG. 6A is a top view of the other base block used in the above.
(B) is the side view of the outer side of the other base block used for the same as the above.
FIG. 7A is a top view of one base block used in the above.
(B) is a side view of the inside of one base block used in the above.
(C) is a bottom view of one base block used in the above.
(D) is a horizontal sectional view of one base block used in the above.
FIG. 8A is a horizontal sectional view of one fixed contact portion used in the above.
(B) is a sectional side view of one fixed contact portion used in the above.
(C) is the front view seen from the inside of one fixed contact part used for the same as the above.
(D) is one side view of one fixed contact part used for the same as the above.
FIG. 9A is a horizontal sectional view of the other fixed contact portion used in the above.
(B) is a sectional side view of the other fixed contact portion used in the above.
(C) is the front view seen from the other fixed contact part used for the same as the above.
(D) is one side view of the other fixed contact part used for the same as the above.
FIG. 10A is a horizontal sectional view of one operation handle used in the above.
(B) is a side view of one operation handle used in the above.
(C) is a bottom view of one operation handle used in the above.
(D) is the other side view of one operation handle used for the same as the above.
(E) is a front view of one operation handle used in the above.
FIG. 11A is a side view of one return torsion spring used in the above.
(B) is a front view of one return torsion spring used in the above.
FIG. 12 (a) is a side view of the other operation handle used in the above.
(B) is a bottom view of the other operation handle used in the above.
(C) is a side sectional view of the other operation handle used in the above.
(D) is a top view of the other operation handle used in the above.
(E) is a front view of the other operation handle used in the above.
FIG. 13A is a side view of the other return torsion spring used in the above.
(B) is a front view of the other return torsion spring used in the above.
FIG. 14 is an explanatory view of the arrangement of the movable contact body of the above.
FIG. 15 is an explanatory diagram of the movable contact and the fixed contact of the above.
FIG. 16 is a diagram for explaining the relationship between the movable contact, the fixed contact and the rib.
FIG. 17 is a side sectional view of the above.
[Explanation of symbols]
1 body
1A, 1B base block
2,3 Operation handle

Claims

On one side, an output terminal group is provided, and a fixed contact portion in which a plurality of arc-shaped fixed contacts electrically connected to these output terminals are arranged in parallel is arranged on the inner plane, and the fixed contact portions are opposed to each other. Two base blocks that are overlapped to form the body,
A substantially fan-shaped first member that is pivotally arranged in a space formed between the base blocks and having one end pivotally supported by a shaft so as to be rotatable along the base block. The operation handle of
A substantially rod-shaped second operation handle that is pivotally supported by the shaft and is rotatably arranged along the base block in both spaces around the shaft and in parallel with the first operation handle;
An opening window formed in the center of the first operating handle;
The contact surfaces which are provided so as to penetrate through the first operation handle portions located on both sides of the opening window in the rotational movement direction and which are respectively exposed from both sides of the first operation handle are fixed to the corresponding fixed contact portions. A plurality of first movable contact body groups which are brought into contact / separated when the first operating handle is rotated and moved to the contact;
One of the contact surfaces that are provided so as to penetrate through a portion of the second operation handle corresponding to the opening window of the first operation handle and are exposed from both side portions of the second operation handle via the opening window. When the second operation handle is rotated, the other contact surface is contacted and opened when the second operation handle is rotated, and the fixed contact portion corresponding to the fixed contact portion on the operation handle side is connected to the corresponding fixed contact portion of the second contact point. A plurality of second movable contact body groups to be separated;
A projecting piece that protrudes in the direction perpendicular to the rotational movement locus of the other operation handle is provided integrally near the other end of one operation handle, and the other operation handle is restricted from rotating within a predetermined range on this projecting piece. A rotary switch comprising a notch portion through which the other operation handle is inserted so that the other operation handle is engaged and rotated together when the one operation handle rotates.

Each movable contact body of the two operation handles has two movable contacts movably housed in the vicinity of both side openings of the holes penetrating both side surfaces of the respective operation handles, and each movable contact interposed between the two movable contacts. 2. The rotary switch according to claim 1, comprising a coil spring made of a conductive material that urges the contact surface to protrude outward.