JP2004335430A

JP2004335430A - Changeover switch member for automobile

Info

Publication number: JP2004335430A
Application number: JP2003162963A
Authority: JP
Inventors: Kenichi Nakagawa; 賢一中川
Original assignee: BUNKA JIDOSHA KOGYO KK
Current assignee: BUNKA JIDOSHA KOGYO KK
Priority date: 2003-05-06
Filing date: 2003-05-06
Publication date: 2004-11-25
Anticipated expiration: 2023-05-06
Also published as: JP4009954B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a changeover switch member with high water proof insulating property and good manufacturing efficiency. <P>SOLUTION: A water proof insulation part 20 continuously formed on the projecting surfaces of switching terminals 7a, 7b of a switch body 1 and covering the switching terminals 7a, 7b is formed thicker than the circumferential surface of the switch body 1 near the projecting surface of the switching terminals 7a, 7b and extended in a direction of a projecting surface of a rotary terminal 3 on the outer circumferential surface of the switch body 1 by a prescribed creeping distance L2. The switching terminals 7a, 7b are arranged within the changeover switch member S with their sheet width direction perpendicular to the paper face. The creeping distance of a water leaking path generated due to the adhesive property or secular changes of the water proof insulation part 20 and the changeover switch member S becomes as long as L1+L2. Thereby, the invaded water is prevented from reaching the switching terminal 7a, insulation failure and corrosion occurring in the changeover switch member S are prevented, and unstable operation and malfunction can be prevented. The water proof insulation part 20 is solidified in a short time of 2 to 3 minutes with die molding a thermoplastic polyamide resin material, and it is characterised in that the changeover switch member S can be efficiently manufactured in a short time. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は自動車の搭載部材の動作を制御する自動車の切換スイッチ部材に関する。
【０００２】
【従来の技術】
自動車には、車体に取り付けられる各種の車載自動車部材の動作を制御する切換スイッチ部材が配設されているが、図３には、これらの切換スイッチ部材の内で、自動車のウインドーの開閉を制御する切換スイッチ部材Ｓとその周辺部の構成が示されており、この切換スイッチ部材Ｓは、回動端子３と切換端子７ａ、７ｂとが収納配設されるスイッチ本体１と、このスイッチ本体１の長手方向の一端面に連続して形成され、スイッチ本体１から突出配設される切換端子７ａ、７ｂの端部を覆う防水絶縁部２０ａとから構成されており、車体ドア１７内に配設されている。
切換スイッチ部材Ｓのスイッチ本体１内において、回動端子３は、一端部をスイッチ本体１の長手方向の他端面から回動自在に突出させて、回動軸２を中心に回動自在に配設されており、回動停止状態では、スプリング２２ａ、２２ｂによって、停止位置に安定に弾性保持されている。また、スイッチ本体１内には、切換端子７ａ、７ｂが、一端部を回動端子３と対向させ、他端部をスイッチ本体１の一端面から突出させて配設されている。
【０００３】
ところで、車体ドア１７内には、ウインドーモータ１４によって、時計回り方向と反時計回り方向とに切換回転自在な螺子駆動バー６が設けられ、この螺子駆動バー６と螺合され、図３の矢印Ｙ１方向或いはＹ２方向に移動自在な保持体１３が設けられている。保持体１３には保持バー１３ａ、１３ｂが一体に取り付けられ、保持バー１３ａの端部には、車体ドアー１７に取り付けられるウインドーガラスが固定保持され、保持バー１３ｂの端部には、所定の間隔を隔てて上限検出片１３ｃと下限検出片１３ｄとが一体に形成されている。
ウインドーガラス１６は、保持片１３のＹ１方向の移動によつて窓閉じ方向に移動し、保持片１３のＹ２方向の移動によって窓開き方向に移動するように構成されており、上限検出片１３ｃは、保持体１３のＹ１方向の移動によって、回動端子３のスイッチ本体１からの突出端部に近付き、窓閉じ状態となると回動端子３の突出端部を押上げ、スプリング２２ａ、２２ｂのばね力に抗して、回動端子３を回動軸２を中心に時計回り方向に回動させ、回動端子３の他端部を切換端子７ａの一端部と対接させるように構成されている。
一方、下限検出片１３ｄは、保持片１３のＹ２方向の移動によって、回動端子３のスイッチ本体１からの突出端部に近付き、窓開き状態になると回動端子３の突出端部を押し下げ、スプリング２２ａ、２２ｂのばね力に抗して、回動端子３を回動軸２を中心に反時計回り方向に回動作させ、回動端子３の他端部を切換端子７ｂの一端部と対接させるように構成されている。
【０００４】
また、切換端子７ａ〜７ｃの他端は、スイッチ本体１の長手方向の他端面から突出しており、スイッチ本体１の他端面に連続して、切換端子７ａ、７ｂの他端を覆って防水絶縁部２０ａが形成されている。切換端子７ａ、７ｂの他端は、リード線によってウインドー位置判定回路１０にそれぞれ接続され、ウインドー位置判定回路１０には、上限信号を出力する上限信号出力回路１１と、下限信号を出力する下限信号出力回路１２とが接続されている。
ところで、車体ドアー１７近傍の車内には、窓を開く際に操作されるウインドー開スイッチ５ａと窓を閉じる際に操作するウインドー閉スイッチ５ｂを備えたウインドースイッチ５が設けられ、ウインドー開スイッチ５ａとウインドー閉スイッチ５ｂとは、前述した螺子駆動バー６を回転駆動するウインドーモータ１４の動作を制御するモータ制御回路１５にそれぞれ接続され、同様にして、上限信号出力回路１１と下限信号出力回路１２とがモータ制御回路１５に接続されている。
【０００５】
以上に説明した切換スイッチ部材Ｓ、ウインドー位置判定回路１０、上限信号出力回路１１、下限信号出力回路１２、モータ制御回路１５、ウインドーモータ１４、螺子駆動バー６、及び保持体１３と保持体１３に一体形成される保持バー１３ａ、検出バー１３ｂ、上限検出片１３ｃ、下限検出片１３ｄは、車体ドアー１７内に配設され、ウインドー１６は車体ドアー１７に開閉自在に取り付けられ、ウインドースイッチ５は、車体ドアー１７近傍の車内に取り付けられている。
【０００６】
また、防水絶縁部２０ａは、スイッチ本体１と外周形状が同一で両端面が開口された樹脂材筒状ケースを、スイッチ本体１の端面に取り付け、樹脂材筒状ケース内にシリコン系のシール接着剤を、樹脂材筒状ケース内に充填し固化させることにより形成されている。この場合、必要に応じて、充填したシリコン系のシール接着剤の固化後に樹脂材筒状ケースを取り除くことも行なわれている。
【０００７】
【発明が解決しようとする課題】
前述したように、ウインドーガラス１６の開閉動作を制御する切換スイッチ部材Ｓは、車体ドアー１７内に配設され、外気に曝された雰囲気にあるので、例えば、雨天時には雨水に曝される。一方、切換スイッチ部材Ｓには、長年の使用による経年変化や切換スイッチ部材Ｓと防水絶縁部２０ａの接着性によって、図３に示すように、スイッチ本体１の切換端子７ａ、７ｂの突出端面と防水絶縁部２０ａ間に水漏隙路が発生し、この水漏隙路を沿面距離Ｌ１にわたって漏れ侵入した雨水が、切換端子７ａに達することがある。特に切換スイッチ部材Ｓの防水絶縁部２０ａに対する接着性がよくない場合に、このような状態になり易い。この状態では切換スイッチ部材Ｓに絶縁不良や腐食が発生して、切換スイッチ部材Ｓの動作が不安定になったり、誤動作を起こしたりすることがあった。
さらに、従来の防水絶縁部に使用されているシリコン系のシール接着剤は、固化時間がほぼ４〜６時間と長く、効率的に製造できないという問題があった。
【０００８】
本発明は、前述したようなこの種の切換スイッチ部材の防水絶縁処理の現状に鑑みてなされたものであり、その目的は、防水絶縁特性を大幅に高めることが可能で効率的に製造可能な切換スイッチ部材を提供することにある。
【０００９】
【課題を解決するための手段】
前記目的を達成するために、請求項１記載の発明は、自動車の車体に外気に露坐状態で配設され、スイッチ本体、該スイッチ本体の一端面から突設する切換端子、及び前記スイッチ本体の他端面から回動自在に突設し、前記切換端子のスイッチ切換を行なう回動端子を備え、前記切換端子に接続されるモータの動作切換を行なうことにより、該モータにより駆動される自動車部材の動作を制御する自動車の切換スイッチ部材であり、前記切換端子を覆って、前記スイッチ本体の一端面に連続して形成される絶縁防水部が、前記一端面の近傍から前記スイッチ本体の周面を覆って前記回動端子方向に、所定長延長して形成されていることを特徴とするものである。
【００１０】
請求項１記載の発明は、スイッチ本体、スイッチ本体の一端面から突設する切換端子、及びスイッチ本体の他端面から回動自在に突設し、切換端子のスイッチ切換を行なう回動端子を備え、自動車の車体に外気に露坐した状態で使用され、切換端子に接続されるモータの動作切換を行なうことにより、モータにより駆動される自動車部材の動作の制御を行なうが、切換端子を覆って、スイッチ本体の一端面に連続して形成される絶縁防水部が、一端面の近傍からスイッチ本体の周面を覆って回動端子方向に、所定長延長して形成されている。
このために、切換スイッチ部材と防水絶縁部の接着性や経年変化に起因して形成される外部からの侵入水の水漏路の沿面距離が大幅に延長され、外部からの侵入水の切換端子への到達を阻止することにより、切換端子と侵入水との接触を避け、切換スイッチ部材に発生する絶縁不良や腐食を防止して、切換スイッチ部材の不安定動作や誤動作が防止され、さらに、防水絶縁部を金型成形により形成することにより、切換スイッチ部材全体が短時間で効率的に製造される。
【００１１】
同様に前記目的を達成するために、請求項２記載の発明は、請求項１記載の自動車の切換スイッチ部材に対して、絶縁防水部の回動端子方向に所定長延長して形成される絶縁防水部の先端部には、スイッチ本体の軸芯方向に傾斜面がさらに形成され、前記先端部の端部位置から、前記スイッチ本体の外周には、前記傾斜面に連続して、同一傾斜度の傾斜面がさらに形成されていることを特徴とするものである。
【００１２】
請求項２記載の発明によると、請求項１記載の発明での作用に加えて、絶縁防水部の回動端子方向に所定長延長して形成される絶縁防水部の先端部に、スイッチ本体の軸芯方向に傾斜面がさらに形成され、この先端部の端部位置からスイッチ本体の周面に、前記傾斜面に連続して、同一傾斜度の傾斜面がさらに形成されているので、外部からの侵入水は、防水絶縁部の傾斜面からスイッチ本体の傾斜面に沿って流れ、侵入水が、防水絶縁部の回動端子側の先端位置から、防水絶縁部とスイッチ本体との対接面に、切換スイッチ部材と防水絶縁部の接着性や経年変化に起因して形成される水漏隙路に侵入し、切換端子に達することが確実に阻止される。
【００１３】
同様に前記目的を達成するために、請求項３記載の発明は、請求項１または請求項２記載の自動車の切換スイッチ部材の周面に対して、外部からの侵入水を前記切換スイッチ部材外に流下させる流下溝がさらに形成されていることを特徴とするものである。
【００１４】
請求項３記載の発明によると、請求項１または請求項２記載で得られる作用に加えて、外部からの侵入水が、切換スイッチ部材の周面に形成される流下溝を、切換スイッチ部材外に流下するので、侵入水が、防水絶縁部の回動端子側の先端位置から、防水絶縁部とスイッチ本体との対接面に、切換スイッチ部材と防水絶縁部の接着性や経年変化に起因して形成される水漏隙路に侵入して、切換端子に達することがほぼ完全に阻止される。
【００１５】
同様に前記目的を達成するために、請求項４記載の発明は、請求項１ないし請求項３の何れかに記載の自動車の切換スイッチ部材において、前記切換スイッチ部材が、自動車のドアー内に配設され、自動車部材が前記ドアーに取り付けられるウインドーであり、前記切換スイッチ部材が前記ウインドーの開閉駆動モータの動作を切換制御することにより、前記ウインドーの開閉を制御することを特徴とするものである。
【００１６】
請求項４記載の発明によると、切換スイッチ部材が自動車のドアー内に配設された状態で、ドアーに取り付けられるウインドーを自動車部材として、切換スイッチ部材がウインドーの開閉駆動モータの動作を切換制御により、ウインドーの開閉を制御することにより、請求項１ないし請求項３の何れかに記載の発明での作用が実行される。
【００１７】
【発明の実施の形態】
［第１の実施の形態］
本発明の第１の実施の形態を図１を参照して説明する。
図１は本実施の形態の要部の構成を示す一部切開説明図である。
【００１８】
本実施の形態では、図１に示すように、スイッチ本体１の切換端子７ａ、７ｂの突出面に連続し、切換端子７ａ、７ｂを覆って形成される防水絶縁部２０が、切換端子７ａ、７ｂの突出面の近傍から、スイッチ本体１の外周面に直角に所定長だけ厚く形成され、さらに絶縁部２０は、スイッチ本体１の外周面に沿って、回動端子３の突出面方向に、所定の沿面距離Ｌ２にわたり延長して形成されている。
そして、本実施の形態では、絶縁部２０は、熱可塑性ポリアミド樹脂材の注型法による金型成形により形成されており、さらに、本実施の形態において、切換端子７ａ、７ｂは、板状の切換端子７ａ、７ｂの板幅方向を、図１の紙面に直角方向にして、切換スイッチ部材Ｓ内に配設されている。
本実施の形態のその他の部分の構成、及びウインドーの開閉動作の制御に使用される場合の周辺部の構成は、すでに図３を参照して説明した従来の自動車の切換スイッチ部材の場合と同一なので、重複する説明は行なわない。
【００１９】
本実施の形態が、ウインドーの開閉動作の制御に使用される場合の動作を、図３を流用して説明する。
車両のウインドーを閉じようとする場合、車内のオペレータがウインドー閉スイッチ５ｂを押し込んでいる間、ウインドー閉スイッチ５ｂから出力される閉信号Ｆｃによって、モータ制御回路１５からウインドーモータ１４に正転信号が入力され、螺子駆動バー６が矢印θ１に示すように反時計回り方向に回転し、螺子駆動バー６の回転によって、保持体１３が矢印Ｙ１方向に移動し、保持体１３の移動によって、保持バー１３ａを介してウインドーガラス１６が窓を閉じる方向に移動し、途中でオペレータが閉じスイッチ５ｂの押し込みを中止すると、その位置にウインドーガラス１６が停止し窓は半閉じ状態となる。
また、オペレータが閉じスイッチ５ｂの押し込みを継続すると、ウインドーガラス１６はさらに矢印Ｙ１方向に移動し、保持体１３の移動に伴って、上限検出片１３ｃが、回動端子３のスイッチ本体１からの突出端部に近付いて行き、ウインドーガラス１６が窓を完全に閉じた位置に達すると、上限検出片１３ｃによって、回動端子３の突出端部が押上げられ、スプリング２２ａ、２２ｂのばね力に抗して、回動軸２が回動軸２を中心に時計回り方向に回転し、回動端子３の他端部が切換端子７ａと対接する。
このようにして、回動端子３が切換端子７ａと対接状態になると、ウインドー位置判定回路１０が、ウインドー閉状態を判定し、上限信号出力回路１１から上限信号Ｆｕがモータ制御回路１５に入力され、モータ制御回路１５からの停止信号によって、ウインドーモータ１４が停止するので、ウインドーガラス１６で窓を完全に閉じられ窓閉状態になる。
【００２０】
一方、車両のウインドーを開こうとする場合、車内のオペレータがウインドー開スイッチ５ａを押し込んでいる間、ウインドー閉スイッチ５ａから出力される開信号Ｆｏによって、モータ制御回路１５からウインドーモータ１４に反転信号が入力され、螺子駆動バー６が矢印θ２に示すように時計回り方向に回転し、螺子駆動バー６の回転によって、保持体１３が矢印Ｙ２方向に移動し、保持体１３の移動によって、保持バー１３ａを介してウインドーガラス１６が窓を開く方向に移動し、途中でオペレータが開スイッチ５ａの押し込みを中止すると、その位置にウインドーガラス１６が停止し窓は半開状態となる。
また、オペレータが閉じスイッチ５ａの押し込みを継続すると、ウインドーガラス１６はさらに矢印Ｙ２方向に移動し、保持体１３の移動に伴って、下限検出片１３ｄが、回動端子３のスイッチ本体１からの突出端部に近付いて行き、ウインドーガラス１６が窓を完全に開いた状態となると、下限検出片１３ｄによって回動端子３の突出端部が押下げられ、スプリング２２ａ、２２ｂのばね力に抗して、回動軸２は回動軸２を中心に反時計回り方向に回転し、回動端子３の他端部が切換端子７ｂと対接する。
このようにして、回動端子３が切換端子７ｂと対接状態になると、ウインドー位置判定回路１０がウインドー開状態を判定し、下限信号出力回路１２から下限信号Ｆｄがモータ制御回路１５に入力され、モータ制御回路１５からの停止信号によって、ウインドーモータ１４が停止するので、ウインドーガラス１６は窓を完全に開いた位置で停止し窓が全開状態となる。
【００２１】
ところで、車体ドアー１７内は外気に曝された雰囲気であり、この車体ドアー１７内に配設される本実施の形態に係る自動車の切換スイッチ部材Ｓには、車体ドアー１７の外部から雨水などの侵入水が流入して付着することがある。
一方、切換スイッチ部材Ｓには、切換スイッチ部材Ｓと防水絶縁部２０との接着性や長年の使用による経年変形によって、図１に示すように、スイッチ本体１の切換端子７ａ、７ｂの突出端面及びスイッチ本体１の周面の一部と防水絶縁部２０間に、沿面距離Ｌ１＋Ｌ２にわたって、切換端子７ｂに達する水漏隙路が発生し、この水漏隙路を通って侵入水が切換端子７ａに達することがある。
【００２２】
この場合、本実施の形態では、スイッチ本体１の切換端子７ａ、７ｂの突出面に連続し、切換端子７ａ、７ｂを覆って形成される防水絶縁部２０が、切換端子７ａ、７ｂの突出面の近傍から、スイッチ本体１の外周面に直角に所定長だけ厚く形成され、さらに絶縁部２０は、スイッチ本体１の外周面に沿って、回動端子３の突出面方向に所定の沿面距離Ｌ２にわたり延長して形成されており、さらに、切換端子７ａ、７ｂは、板幅方向を図１の紙面に直角方向にして、切換スイッチ部材Ｓ内に配設されている。
このために、本実施の形態では、水漏路の沿面距離がＬ１＋Ｌ２となり、従来の切換スイッチ部材の水漏路の沿面距離Ｌ１よりも長くなり、外部からの侵入水の切換端子７ｂへの到達を阻止することにより、切換端子７ｂの侵入水との接触を避け、切換スイッチ部材Ｓに発生する絶縁不良や腐食を防止して、切換スイッチ部材Ｓの不安定動作や誤動作を防止することが可能になる。
【００２３】
この場合、発明者等の統計的解析によると、従来の切換スイッチ部材には、所定時間使用後にほぼ５％の水漏れ不良品が発生したが、本実施の形態によると、同一の所定時間使用後の水漏れ不良品の発生率をほぼ０とすることが可能であった。
また、本実施の形態では、絶縁部２０が、熱可塑性ポリアミド樹脂材の注型法による金型成形により形成されているので、従来のシリコン系のシール接着剤で形成される防水絶縁部２０ａが、固化に４〜６時間を要したのに比して、本実施の形態の防水絶縁部２０は２〜３分で固化し、さらに金型成形により形成されるので、切換スイッチ部材Ｓを短時間で効率的に製造することが可能になる。
【００２４】
［第２の実施の形態］
本実施の形態の第２の実施の形態を図２を参照して説明する。
本実施の形態では、同図に示すように、スイッチ本体１Ａの回動端子３側の周面が、防水絶縁部２０の回動端子３側の先端位置から、防水絶縁部２０の回動端子３側の先端部の傾斜面と、同一の傾斜面に形成されており、さらに、防水絶縁部２０の周面とスイッチ本体１Ａの周面とに、防水絶縁部２０の周面やスイッチ本体１Ａの周面に付着した侵入水を流下させる複数の流下溝２１が形成されている。
本実施の形態のその他の部分の構成、及びウインドーの開閉動作の制御に使用される場合の周辺部の構成は、すでに図１を参照して説明した第１の実施の形態と同一なので、重複する説明は行なわない。
【００２５】
本実施の形態では、防水絶縁部２０の傾斜面部に付着した侵入水は、防水絶縁部２０の傾斜面からスイッチ本体１Ａの回動端子３側の傾斜面に沿って流れ、その殆どがスイッチ本体１Ａの傾斜周面に形成された流下溝２１から流れ落ち、防水絶縁部２０の回動端子３側の先端位置から、防水絶縁部２０とスイッチ本体１Ａとの対接面に、経年変化や切換スイッチ部材Ｓと防水絶縁部２０の接着性に起因して形成される水漏隙路から侵入して、切換端子７ｂに達することがほほ完全に防止され、防水絶縁部２０の切換端子７ａ、７ｂを覆う周面に付着した侵入水も直ちに、該周面に形成された流下溝２１から流れ落ち防水絶縁部２０に留まることはなくなる。
本実施の形態のその他の動作は、すでに説明した第１の実施の形態での動作と同一なので、重複する説明は行なわない。
【００２６】
このようにして、本実施の形態によると、切換スイッチ部材Ｓに発生する絶縁不良や腐食の防止効果をさらに高め、切換スイッチ部材Ｓの不安定動作や誤動作の防止効果をより高めることが可能になる。
【００２７】
【発明の効果】
請求項１記載の発明に係る自動車の切換スイッチ部材は、スイッチ本体、スイッチ本体の一端面から突設する切換端子、及びスイッチ本体の他端面から回動自在に突設し、切換端子のスイッチ切換を行なう回動端子を備え、自動車の車体に外気に露坐した状態で使用され、切換端子に接続されるモータの動作切換を行なうことにより、モータにより駆動される自動車部材の動作の制御を行なうが、切換端子を覆って、スイッチ本体の一端面に連続して形成される絶縁防水部が、一端面の近傍からスイッチ本体の周面を覆って回動端子方向に、所定長延長して形成されている。
このために、切換スイッチ部材と防水絶縁部の接着性や経年変化に起因して形成される外部からの侵入水の水漏路の沿面距離が大幅に延長され、外部からの侵入水の切換端子への到達を阻止ることにより、切換スイッチ部材に発生する絶縁不良や腐食を防止して、切換スイッチ部材の不安定動作や誤動作を防止することが可能になり、さらに、防水絶縁部を金型成形により形成することにより、切換スイッチ部材全体を短時間で効率的に製造することが可能になる。
【００２８】
請求項２記載の発明によると、請求項１記載の発明で得られる効果に加えて、絶縁防水部の回動端子方向に所定長延長して形成される絶縁防水部の先端部に、スイッチ本体の軸芯方向に傾斜面がさらに形成され、この先端部の端部位置からスイッチ本体の周面に、前記傾斜面に連続して、同一傾斜度の傾斜面がさらに形成されているので、外部からの侵入水は、防水絶縁部の傾斜面からスイッチ本体の傾斜面に沿って流れ、侵入水が、防水絶縁部の回動端子側の先端位置から、防水絶縁部とスイッチ本体との対接面に、切換スイッチ部材と防水絶縁部の接着性や経年変化に起因して形成される水漏隙路に侵入し、切換端子に達することを確実に阻止することが可能になる。
【００２９】
請求項３記載の発明によると、請求項１または請求項２記載で得られる効果に加えて、外部からの侵入水が、切換スイッチ部材の周面に形成される流下溝を、切換スイッチ部材外に流下するので、侵入水が、防水絶縁部の回動端子側の先端位置から、防水絶縁部とスイッチ本体との対接面に、切換スイッチ部材と防水絶縁部の接着性や経年変化に起因して形成される水漏隙路に侵入して、切換端子に達することをほぼ完全に阻止することが可能になる。
【００３０】
請求項４記載の発明によると、切換スイッチ部材が自動車のドアー内に配設された状態で、ドアーに取り付けられるウインドーを自動車部材として、切換スイッチ部材がウインドーの開閉駆動モータの動作を切換制御により、ウインドーの開閉を制御することにより、請求項１ないし請求項３の何れかで得られる効果を実現することが可能になる。
【図面の簡単な説明】
【図１】本発明の第１の実施の形態の要部の構成を示す一部切開説明図である。
【図２】本発明の第２の実施の形態の要部の構成を示す説明図である。
【図３】ウインドーの開閉動作の制御に使用される従来の自動車の切換スイッチ部材とその周辺部との全体構成を示す説明図である。
【符号の説明】
１、１Ａスイッチ本体
２回動軸
３回動端子
５ａウインドー開スイッチ
５ｂウインドー閉スイッチ
６螺子駆動バー
７ａ、７ｂ切換端子
１０ウインドー位置判定回路
１１上限信号出力回路
１２下限信号出力回路
１３保持体
１４ウインドーモータ
１５モータ制御回路
１６ウインドー
１７車体ドアー
２０防水絶縁部
２１流下溝
Ｓ切換スイッチ部材[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a changeover switch member of a vehicle for controlling the operation of a mounting member of the vehicle.
[0002]
[Prior art]
The vehicle is provided with a changeover switch member for controlling the operation of various onboard vehicle members mounted on the vehicle body. FIG. FIG. 1 shows a configuration of a switching switch member S and a peripheral portion thereof. The switching switch member S includes a switch body 1 in which a rotating terminal 3 and switching terminals 7a and 7b are housed and arranged, and a switch body 1 And a waterproof insulating portion 20a which is formed continuously on one end surface in the longitudinal direction and covers the ends of the switching terminals 7a and 7b protruding from the switch main body 1. Have been.
In the switch main body 1 of the changeover switch member S, one end of the rotation terminal 3 is rotatably protruded from the other end surface in the longitudinal direction of the switch main body 1 so as to be rotatable around the rotation shaft 2. When the rotation is stopped, the springs 22a and 22b stably elastically hold the stop position. In the switch body 1, switching terminals 7 a and 7 b are provided with one end facing the rotating terminal 3 and the other end protruding from one end surface of the switch body 1.
[0003]
Incidentally, a screw drive bar 6 which is rotatable in a clockwise direction and a counterclockwise direction by a window motor 14 is provided in the vehicle body door 17 and is screwed with the screw drive bar 6, as shown in FIG. A holding body 13 that is movable in the direction of the arrow Y1 or Y2 is provided. Holding bars 13a and 13b are integrally attached to the holding body 13, a window glass attached to the vehicle body door 17 is fixedly held at an end of the holding bar 13a, and a predetermined portion is fixed to an end of the holding bar 13b. An upper limit detection piece 13c and a lower limit detection piece 13d are integrally formed with an interval therebetween.
The window glass 16 is configured to move in the window closing direction by the movement of the holding piece 13 in the Y1 direction, and to move in the window opening direction by the movement of the holding piece 13 in the Y2 direction. Moves toward the protruding end of the rotary terminal 3 from the switch body 1 by the movement of the holder 13 in the Y1 direction, and pushes up the protruding end of the rotary terminal 3 when the window is closed, so that the springs 22a and 22b The rotating terminal 3 is rotated clockwise around the rotating shaft 2 against the spring force, and the other end of the rotating terminal 3 is brought into contact with one end of the switching terminal 7a. ing.
On the other hand, the lower limit detecting piece 13d approaches the protruding end of the rotating terminal 3 from the switch body 1 by the movement of the holding piece 13 in the Y2 direction, and pushes down the protruding end of the rotating terminal 3 when the window is opened, The rotating terminal 3 is rotated counterclockwise around the rotating shaft 2 against the spring force of the springs 22a and 22b, and the other end of the rotating terminal 3 is paired with one end of the switching terminal 7b. It is configured to make contact.
[0004]
The other ends of the switching terminals 7a to 7c protrude from the other end surface of the switch body 1 in the longitudinal direction, and are continuous with the other end surface of the switch body 1 to cover the other ends of the switching terminals 7a and 7b to be waterproof and insulated. A portion 20a is formed. The other ends of the switching terminals 7a and 7b are connected to a window position determination circuit 10 by lead wires, respectively. The window position determination circuit 10 has an upper limit signal output circuit 11 for outputting an upper limit signal and a lower limit signal for outputting a lower limit signal. The output circuit 12 is connected.
By the way, a window switch 5 having a window open switch 5a operated to open a window and a window close switch 5b operated to close a window is provided in the vehicle near the vehicle body door 17, and the window open switch 5a is provided. And the window close switch 5b are connected to a motor control circuit 15 for controlling the operation of the window motor 14 for driving the screw drive bar 6 to rotate, and similarly, an upper limit signal output circuit 11 and a lower limit signal output circuit 12 are connected to the motor control circuit 15.
[0005]
The changeover switch member S, the window position determination circuit 10, the upper limit signal output circuit 11, the lower limit signal output circuit 12, the motor control circuit 15, the window motor 14, the screw drive bar 6, the holding body 13 and the holding body 13 described above. The holding bar 13a, the detection bar 13b, the upper limit detection piece 13c, and the lower limit detection piece 13d, which are formed integrally with the vehicle body, are disposed in the vehicle body door 17, and the window 16 is attached to the vehicle body door 17 so as to be openable and closable. Is mounted in the vehicle near the vehicle body door 17.
[0006]
The waterproof insulating portion 20a is formed by attaching a resin cylindrical case having the same outer peripheral shape as the switch main body 1 and having both open ends to the end surface of the switch main body 1, and bonding a silicone seal inside the resin cylindrical case. It is formed by filling and solidifying an agent into a resin material cylindrical case. In this case, if necessary, the resin-made cylindrical case is removed after the filled silicone seal adhesive is solidified.
[0007]
[Problems to be solved by the invention]
As described above, the changeover switch member S for controlling the opening / closing operation of the window glass 16 is provided in the vehicle body door 17 and is in an atmosphere exposed to the outside air, and is exposed to rainwater in rainy weather, for example. On the other hand, as shown in FIG. 3, the changeover switch member S has a protruding end face of the changeover terminals 7a and 7b of the switch body 1 due to aging due to long-term use and the adhesiveness between the changeover switch member S and the waterproof insulating portion 20a. A water leak path may be generated between the waterproof insulating portions 20a, and rainwater leaking and entering the water leak path over the creeping distance L1 may reach the switching terminal 7a. In particular, when the changeover switch member S has poor adhesion to the waterproof insulating portion 20a, such a state is likely to occur. In this state, insulation failure or corrosion occurs in the changeover switch member S, so that the operation of the changeover switch member S becomes unstable or malfunctions.
Furthermore, the conventional silicone-based seal adhesive used for the waterproof insulating portion has a problem that the solidification time is as long as about 4 to 6 hours and cannot be manufactured efficiently.
[0008]
The present invention has been made in view of the current state of the waterproof insulation treatment of this type of changeover switch member as described above, and the object is to significantly increase the waterproof insulation properties and to efficiently manufacture the switch insulation member. A changeover switch member is provided.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, an invention according to claim 1 is provided with a switch body, a switching terminal protruding from one end face of the switch body, the switch body being provided in a body of an automobile in a state of being exposed to outside air, and the switch body. An automobile member driven by the motor by switching the operation of a motor connected to the switching terminal by rotatably projecting from the other end surface of the motor terminal and switching the switching of the switching terminal. A switching switch member for an automobile for controlling the operation of the switch body, wherein an insulating waterproof portion continuously formed on one end face of the switch body and covering the switching terminal is provided on a peripheral surface of the switch body from near the one end face. And is formed so as to extend a predetermined length in the direction of the rotating terminal so as to cover the rotating terminal.
[0010]
The invention according to claim 1 includes a switch main body, a switching terminal protruding from one end face of the switch main body, and a rotating terminal protruding from the other end face of the switch main body to be rotatable and performing switch switching of the switching terminal. It is used in a state of being exposed to outside air on the body of an automobile, and controls the operation of an automobile member driven by the motor by switching the operation of a motor connected to the switching terminal. The insulating waterproof portion continuously formed on one end surface of the switch body is formed to extend a predetermined length in the direction of the rotating terminal from the vicinity of the one end surface to cover the peripheral surface of the switch body.
For this reason, the creepage distance of the water leak path of the intruding water from the outside formed due to the adhesion between the changeover switch member and the waterproof insulating portion and the aging is greatly extended, and the switching terminal of the intruding water from the outside is increased. By preventing the switch from reaching the switch terminal, contact between the switch terminal and the intruding water is avoided, insulation failure and corrosion occurring in the switch member are prevented, and unstable operation and malfunction of the switch member are prevented. By forming the waterproof insulating portion by molding, the entire switch member can be efficiently manufactured in a short time.
[0011]
Similarly, in order to achieve the above object, an invention according to claim 2 is an insulation formed by extending a predetermined length in the direction of the rotation terminal of the insulating waterproof part with respect to the changeover switch member of the vehicle according to claim 1. An inclined surface is further formed at the distal end of the waterproof portion in the axial direction of the switch body. From the end position of the distal end, the outer periphery of the switch body is continuously connected to the inclined surface at the same inclination. Is further formed.
[0012]
According to the second aspect of the present invention, in addition to the function of the first aspect of the present invention, the switch body is provided at the tip of the insulating waterproof part formed by extending the insulating waterproof part by a predetermined length in the rotating terminal direction. An inclined surface is further formed in the axial direction, and an inclined surface having the same degree of inclination is further formed on the peripheral surface of the switch body from the end position of the front end portion so as to be continuous with the inclined surface. Water flows along the slope of the switch body from the inclined surface of the waterproof insulating portion, and the intruding water flows from the tip end of the waterproof insulating portion on the rotating terminal side to the contact surface between the waterproof insulating portion and the switch body. In addition, it can be reliably prevented from entering the water leak path formed due to the adhesion between the changeover switch member and the waterproof insulating portion and the aging, and reaching the changeover terminal.
[0013]
Similarly, in order to achieve the above-mentioned object, the invention according to claim 3 is directed to prevent the intrusion of water from the outside into the peripheral surface of the switch member of the vehicle according to claim 1 or 2 from the outside of the switch member. And a flow-down groove for flowing down the water is further formed.
[0014]
According to the third aspect of the present invention, in addition to the effect obtained in the first or second aspect, the intrusion water from the outside causes the flow-down groove formed on the peripheral surface of the changeover switch member to form the outside of the changeover switch member. Water penetrates from the tip of the waterproof insulating part on the rotating terminal side to the contact surface between the waterproof insulating part and the switch body due to the adhesion between the changeover switch member and the waterproof insulating part and aging. It is almost completely prevented that it penetrates the formed water leakage path and reaches the switching terminal.
[0015]
Similarly, in order to achieve the above object, according to a fourth aspect of the present invention, in the vehicle changeover switch member according to any one of the first to third aspects, the changeover switch member is arranged in a door of the vehicle. The vehicle member is a window attached to the door, and the changeover switch member controls the opening and closing of the window by switching the operation of an opening / closing drive motor of the window. .
[0016]
According to the invention described in claim 4, in a state where the changeover switch member is disposed in the door of the vehicle, the window attached to the door is used as the vehicle member, and the changeover switch member controls the operation of the opening / closing drive motor of the window by switching control. By controlling the opening and closing of the window, the operation of the invention according to any one of claims 1 to 3 is executed.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
[First Embodiment]
A first embodiment of the present invention will be described with reference to FIG.
FIG. 1 is a partially cutaway explanatory view showing a configuration of a main part of the present embodiment.
[0018]
In the present embodiment, as shown in FIG. 1, the waterproof insulating portion 20 that is continuous with the projecting surfaces of the switching terminals 7a and 7b of the switch body 1 and that is formed to cover the switching terminals 7a and 7b includes the switching terminals 7a and 7b. 7b, is formed to be thicker by a predetermined length at right angles to the outer peripheral surface of the switch main body 1 from the vicinity of the protruding surface of the switch body 1, and further, the insulating portion 20 extends along the outer peripheral surface of the switch main body 1 in the direction of the protruding surface of the rotary terminal 3. It is formed to extend over a predetermined creeping distance L2.
Further, in the present embodiment, the insulating portion 20 is formed by molding a thermoplastic polyamide resin material by a casting method. Further, in the present embodiment, the switching terminals 7a and 7b are plate-shaped. The switching terminals 7a and 7b are arranged in the switching switch member S with the width direction of the switching terminals 7a and 7b being perpendicular to the paper surface of FIG.
The configuration of the other parts of this embodiment and the configuration of the peripheral part when used for controlling the opening and closing operation of the window are the same as those of the conventional switch member of the conventional vehicle described with reference to FIG. Therefore, a duplicate description will not be given.
[0019]
The operation in the case where the present embodiment is used for controlling the opening and closing operation of the window will be described with reference to FIG.
When the window of the vehicle is to be closed, while the operator in the vehicle is pushing down the window closing switch 5b, the motor control circuit 15 sends a forward rotation signal to the window motor 14 by the closing signal Fc output from the window closing switch 5b. Is input, the screw drive bar 6 rotates counterclockwise as shown by the arrow θ1, and the rotation of the screw drive bar 6 causes the holding body 13 to move in the arrow Y1 direction. When the window glass 16 moves in the direction to close the window via the bar 13a and the operator stops pushing the closing switch 5b halfway, the window glass 16 stops at that position and the window is in a semi-closed state.
When the operator continues to push the closing switch 5b, the window glass 16 further moves in the direction of the arrow Y1. When the window glass 16 reaches the position where the window is completely closed, the protruding end of the rotary terminal 3 is pushed up by the upper limit detecting piece 13c, and the springs 22a and 22b The rotating shaft 2 rotates clockwise around the rotating shaft 2 against the force, and the other end of the rotating terminal 3 comes into contact with the switching terminal 7a.
In this way, when the rotating terminal 3 comes into contact with the switching terminal 7a, the window position determination circuit 10 determines the window closed state, and the upper limit signal Fu is input from the upper limit signal output circuit 11 to the motor control circuit 15. Then, the window motor 14 is stopped by the stop signal from the motor control circuit 15, so that the window is completely closed by the window glass 16 and the window is closed.
[0020]
On the other hand, when opening the window of the vehicle, while the operator in the vehicle is pushing down the window open switch 5a, the motor control circuit 15 inverts the window motor 14 by the open signal Fo output from the window close switch 5a. When the signal is input, the screw drive bar 6 rotates clockwise as shown by the arrow θ2, and the rotation of the screw drive bar 6 causes the holder 13 to move in the direction of the arrow Y2. When the window glass 16 moves in the opening direction of the window via the bar 13a, and the operator stops pushing the open switch 5a on the way, the window glass 16 stops at that position and the window is in a half-open state.
When the operator continues to push the closing switch 5a, the window glass 16 further moves in the direction of the arrow Y2. When the window glass 16 is in a state in which the window is completely opened, the lower end detecting piece 13d pushes down the protruding end of the rotary terminal 3 to reduce the spring force of the springs 22a and 22b. On the contrary, the rotating shaft 2 rotates counterclockwise around the rotating shaft 2, and the other end of the rotating terminal 3 comes into contact with the switching terminal 7b.
In this way, when the rotating terminal 3 comes into contact with the switching terminal 7b, the window position determination circuit 10 determines whether the window is open, and the lower limit signal Fd is input from the lower limit signal output circuit 12 to the motor control circuit 15. Since the window motor 14 is stopped by the stop signal from the motor control circuit 15, the window glass 16 stops at the position where the window is completely opened, and the window is fully opened.
[0021]
By the way, the inside of the vehicle door 17 is an atmosphere exposed to the outside air, and the changeover switch member S of the vehicle according to the present embodiment disposed inside the vehicle body door 17 includes rainwater or the like from outside the vehicle door 17. Infiltration water may enter and adhere.
On the other hand, as shown in FIG. 1, the protruding end faces of the switching terminals 7a and 7b of the switch body 1 are formed on the changeover switch member S due to the adhesion between the changeover switch member S and the waterproof insulating portion 20 and the aging deformation due to long-term use. In addition, a water leak path reaching the switching terminal 7b is generated between the part of the peripheral surface of the switch body 1 and the waterproof insulating portion 20 over the creepage distance L1 + L2, and intruding water passes through the water leak path to switch the switching terminal 7a. May be reached.
[0022]
In this case, in the present embodiment, the waterproof insulating portion 20 which is continuous with the protruding surfaces of the switching terminals 7a and 7b of the switch body 1 and is formed so as to cover the switching terminals 7a and 7b is provided on the protruding surface of the switching terminals 7a and 7b. , Is formed to be thicker by a predetermined length at right angles to the outer peripheral surface of the switch main body 1, and furthermore, the insulating portion 20 is formed along the outer peripheral surface of the switch main body 1 by a predetermined creeping distance L2 in the direction of the protruding surface of the rotary terminal 3. Further, the switching terminals 7a and 7b are disposed in the switching switch member S with the plate width direction perpendicular to the paper surface of FIG.
For this reason, in the present embodiment, the creepage distance of the water leakage path is L1 + L2, which is longer than the creepage distance L1 of the water leakage path of the conventional changeover switch member, and reaches the switching terminal 7b of the intruding water from outside. Can prevent contact of the switching terminal 7b with the intruding water, prevent insulation failure and corrosion occurring in the switching member S, and prevent unstable operation and malfunction of the switching member S. become.
[0023]
In this case, according to the statistical analysis of the inventors, about 5% of defective water leakage occurred in the conventional changeover switch member after use for a predetermined time, but according to the present embodiment, use of the same changeover switch member for the same predetermined time has It was possible to make the occurrence rate of the later defective water leakage almost zero.
Further, in the present embodiment, since the insulating portion 20 is formed by die molding of a thermoplastic polyamide resin material by a casting method, the waterproof insulating portion 20a formed by a conventional silicone-based seal adhesive is used. In contrast to the case where the solidification takes 4 to 6 hours, the waterproof insulating portion 20 of the present embodiment is solidified in 2 to 3 minutes, and is formed by die molding. It becomes possible to manufacture efficiently in a short time.
[0024]
[Second embodiment]
A second embodiment of the present embodiment will be described with reference to FIG.
In the present embodiment, as shown in the drawing, the peripheral surface of the switch body 1A on the side of the rotating terminal 3 is moved from the distal end position of the waterproof insulating section 20 on the side of the rotating terminal 3 to the rotating terminal of the waterproof insulating section 20. The peripheral surface of the waterproof insulating part 20 and the peripheral surface of the switch main body 1A are formed on the same inclined surface as the inclined surface of the front end portion on the third side. There are formed a plurality of flow-down grooves 21 for flowing down the intruding water adhered to the peripheral surface of.
The configuration of the other parts of this embodiment and the configuration of the peripheral part when used for controlling the opening and closing operations of the window are the same as those of the first embodiment already described with reference to FIG. Will not be described.
[0025]
In the present embodiment, infiltration water adhering to the inclined surface of the waterproof insulating portion 20 flows from the inclined surface of the waterproof insulating portion 20 along the inclined surface of the switch body 1A on the side of the rotating terminal 3, and most of the water flows therethrough. The water flows down from the downflow groove 21 formed on the inclined peripheral surface of the switch 1A, and the secular change and the change-over switch are applied to the contact surface between the waterproof insulating unit 20 and the switch body 1A from the tip end position of the waterproof insulating unit 20 on the rotating terminal 3 side. It is almost completely prevented from entering from the water leak path formed due to the adhesiveness between the member S and the waterproof insulating portion 20 and reaching the switching terminal 7b, and the switching terminals 7a and 7b of the waterproof insulating portion 20 are removed. The intruding water adhering to the peripheral surface to be covered does not immediately flow down from the flow-down groove 21 formed on the peripheral surface and remains in the waterproof insulating portion 20.
Other operations of the present embodiment are the same as the operations of the first embodiment described above, and therefore, will not be described repeatedly.
[0026]
Thus, according to the present embodiment, it is possible to further enhance the effect of preventing insulation failure and corrosion occurring in the changeover switch member S, and further enhance the effect of preventing the changeover switch member S from becoming unstable or malfunctioning. Become.
[0027]
【The invention's effect】
According to the first aspect of the present invention, there is provided a switching switch member for an automobile, comprising: a switch body, a switching terminal protruding from one end face of the switch body, and a rotatable projection protruding from the other end face of the switch body. Is used in a state of being exposed to the outside of a vehicle body of a vehicle, and controls operation of a vehicle member driven by the motor by switching operation of a motor connected to the switching terminal. However, an insulating waterproof portion continuously formed on one end surface of the switch body, covering the switching terminal, is formed by extending a predetermined length in the direction of the rotating terminal from the vicinity of the one end surface to cover the peripheral surface of the switch body. Have been.
For this reason, the creepage distance of the water leak path of the intruding water from the outside formed due to the adhesion between the changeover switch member and the waterproof insulating portion and the aging is greatly extended, and the switching terminal of the intruding water from the outside is increased. By preventing the switch from reaching, it is possible to prevent insulation failure and corrosion occurring in the changeover switch member, prevent unstable operation and malfunction of the changeover switch member, and furthermore, mold the waterproof insulation portion to a mold. By forming by molding, the entire changeover switch member can be efficiently manufactured in a short time.
[0028]
According to the second aspect of the present invention, in addition to the effects obtained by the first aspect of the present invention, the switch body is provided at the distal end of the insulating waterproof part formed by extending the insulating waterproof part by a predetermined length in the rotating terminal direction. An inclined surface is further formed in the axial direction of the switch, and an inclined surface having the same degree of inclination is further formed on the peripheral surface of the switch body from the end position of the distal end portion so as to be continuous with the inclined surface. Water flows from the inclined surface of the waterproof insulating portion along the inclined surface of the switch body, and the intruding water flows from the distal end position of the waterproof insulating portion on the rotating terminal side to contact the waterproof insulating portion with the switch body. It is possible to reliably prevent the water from entering the water leak path formed due to the adhesion between the changeover switch member and the waterproof insulating portion and aging on the surface and reaching the changeover terminal.
[0029]
According to the third aspect of the present invention, in addition to the effects obtained in the first or second aspect, inflow of water from the outside causes the flow-down groove formed on the peripheral surface of the changeover switch member to cause the outside of the changeover switch member. Water penetrates from the tip of the waterproof insulating part on the rotating terminal side to the contact surface between the waterproof insulating part and the switch body due to the adhesion between the changeover switch member and the waterproof insulating part and aging. It is possible to almost completely prevent the water leakage path formed as described above from entering the switching terminal.
[0030]
According to the invention described in claim 4, in a state where the changeover switch member is disposed in the door of the vehicle, the window attached to the door is used as the vehicle member, and the changeover switch member controls the operation of the opening / closing drive motor of the window by switching control. By controlling the opening and closing of the window, it is possible to realize the effects obtained in any one of claims 1 to 3.
[Brief description of the drawings]
FIG. 1 is a partially cutaway explanatory view showing a configuration of a main part of a first embodiment of the present invention.
FIG. 2 is an explanatory diagram illustrating a configuration of a main part of a second embodiment of the present invention.
FIG. 3 is an explanatory view showing the entire configuration of a changeover switch member of a conventional automobile used for controlling the opening and closing operation of a window and its peripheral portion.
[Explanation of symbols]
1, 1A Switch body 2 Rotating shaft 3 Rotating terminal 5a Window open switch 5b Window close switch 6 Screw drive bar 7a, 7b Switching terminal 10 Window position determination circuit 11 Upper limit signal output circuit 12 Lower limit signal output circuit 13 Holder 14 Win Doe motor 15 Motor control circuit 16 Window 17 Body door 20 Waterproof insulating part 21 Downflow groove S Changeover switch member

Claims

A switch main body, a switching terminal protruding from one end surface of the switch main body, and a switching terminal protruding from the other end surface of the switch main body, the switching terminal protruding from the other end surface of the switch main body. A switching switch member for a vehicle, comprising a rotating terminal for performing switch switching, and performing operation switching of a motor connected to the switching terminal to control operation of a vehicle member driven by the motor.
An insulating waterproof portion continuously formed on one end surface of the switch body, covering the switching terminal, extends a predetermined length in the direction of the rotating terminal from the vicinity of the one end surface to cover the peripheral surface of the switch body. A changeover switch member for an automobile, wherein the changeover switch member is formed as follows.

An inclined surface in the axial direction of the switch body is provided at the tip of the insulating waterproof part formed by extending the insulating waterproof part by a predetermined length in the direction of the rotation terminal of the insulating waterproof part. A changeover switch for a motor vehicle, wherein a slope having the same degree of inclination is further formed on an outer periphery of the switch body from an end position of the tip end, the slope being continuous with the slope. Element.

3. A motor vehicle according to claim 1, further comprising a downflow groove formed in a peripheral surface of the switch member of the vehicle according to claim 1 or 2 to allow intrusion of water from outside to flow outside the switch member. Changeover switch member.

4. The changeover switch member according to claim 1, wherein the changeover switch member is a window disposed in a door of the vehicle, and the vehicle member is attached to the door. A changeover switch member for an automobile, wherein the member controls the opening and closing of the window by switching and controlling the operation of the opening and closing drive motor of the window.