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JP4268494B2 - Contamination prevention structure for pedal switch - Google Patents

Contamination prevention structure for pedal switch Download PDF

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Publication number
JP4268494B2
JP4268494B2 JP2003351816A JP2003351816A JP4268494B2 JP 4268494 B2 JP4268494 B2 JP 4268494B2 JP 2003351816 A JP2003351816 A JP 2003351816A JP 2003351816 A JP2003351816 A JP 2003351816A JP 4268494 B2 JP4268494 B2 JP 4268494B2
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Japan
Prior art keywords
plunger
stopper
pedal
guide member
cup
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Expired - Fee Related
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JP2005116446A (en
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一幹 吉武
智明 仲井
啓輔 宮原
好記 古澤
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Priority to CNB2004100808096A priority patent/CN100355000C/en
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Publication of JP4268494B2 publication Critical patent/JP4268494B2/en
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  • Push-Button Switches (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Mechanisms For Operating Contacts (AREA)

Description

本発明は、ペダルの作動状態を検出するためのペダルスイッチにおける夾雑物の付着防止構造に関するものである。   The present invention relates to a structure for preventing adhesion of foreign substances in a pedal switch for detecting an operating state of a pedal.

車体後部に設けられたストップランプを、ブレーキペダルに連動して点灯させるために、ブレーキペダルが踏み込まれたことを検出するペダルスイッチが自動車には設けられている。このペダルスイッチは、固定接点が組み込まれ且つ車体側に固定されたケーシングと、ケーシングに一体形成された筒状をなすガイド部材に摺合し且つ可動接点と連動連結されたプランジャとからなり、ガイド部材の先端開口から突出したプランジャのブレーキペダルの揺動運動に連動した進退移動により、固定接点と可動接点との間の電気的な導通を断続させるようになっている。   In order to light a stop lamp provided at the rear of the vehicle body in conjunction with the brake pedal, a pedal switch for detecting that the brake pedal has been depressed is provided in the automobile. The pedal switch includes a casing in which a fixed contact is incorporated and fixed to the vehicle body side, and a plunger that is slidably coupled to a cylindrical guide member that is integrally formed with the casing and that is interlocked with the movable contact. The electrical continuity between the fixed contact and the movable contact is interrupted by advancing and retreating in conjunction with the swinging motion of the brake pedal of the plunger protruding from the tip opening of the plunger.

このペダルスイッチとして、柔軟な膜からなるシール部材を接点取付部の直前に装着し、塵埃などの夾雑物が接点部に侵入して接触不良を起こすことを防止するようにした構造が知られている(特許文献1の第6図を参照されたい)。
特公平6−101272号公報
As this pedal switch, a structure is known in which a sealing member made of a flexible film is attached immediately before the contact mounting portion to prevent foreign matters such as dust from entering the contact portion and causing poor contact. (See FIG. 6 of Patent Document 1).
Japanese Patent Publication No. 6-101272

しかるに、上記従来の構造によると、プランジャのガイド部材から突出した部分に塵埃などが付着することは防止し得ないので、この部分に摺動不良が発生する可能性は払拭できない上、元来が小さな部品で成り立っているこの種のスイッチの内部に更にシール部材を組み込むことは、部品点数及び組立工数の増加を招き、スイッチの製造コストの増大に繋がるという不都合がある。   However, according to the conventional structure, it is impossible to prevent dust from adhering to the portion protruding from the guide member of the plunger. Incorporating a seal member in the inside of this type of switch made up of small parts increases the number of parts and the number of assembly steps, leading to an increase in the manufacturing cost of the switch.

このような課題を解決し、部品点数及び組立工数の増加を招かずに、ペダルスイッチ7におけるプランジャ15の摺動部に夾雑物が付着し難くするために、本発明の請求項1は、車体(3)側に揺動自在に支持されたペダルレバー(2)の作動状態を検出すべく、車体(3)側に固定された筒状のガイド部材(14)に摺動自在に嵌合して当該ガイド部材(14)より支持された接点開閉用のプランジャ(15)を備えるペダルスイッチにおける夾雑物の付着防止構造であって、前記ペダルレバー(2)にカップ形のストッパ(9)がその底部(9b)をもって固定装着され、前記ペダルレバー(2)の非操作時に、前記プランジャ(15)の先端が前記ストッパ(9)の前記底部(9b)内面に当接し、前記ストッパ(9)の筒状のカップ形部分(9a)の内径寸法が、前記ガイド部材の先端部を緩く受容できる大きさに設定されており、前記ペダルレバーの非操作時に、前記ストッパの前記カップ形部分が前記ガイド部材及び前記プランジャ(15)の先端部を覆い、前記ペダルレバー(2)の踏み込みにより、前記カップ形部分(9a)を含んで前記ストッパ(9)が前記ガイド部材(14)及び前記プランジャ(15)の先端部より離れることを特徴としているIn order to solve such problems and make it difficult for foreign matter to adhere to the sliding portion of the plunger 15 in the pedal switch 7 without increasing the number of parts and the number of assembly steps, claim 1 of the present invention provides a vehicle body. In order to detect the operating state of the pedal lever (2) supported so as to be swingable on the (3) side, it is slidably fitted to a cylindrical guide member (14) fixed on the vehicle body (3) side. In the pedal switch having the contact opening / closing plunger (15) supported by the guide member (14), the foreign matter is prevented from adhering to the pedal lever (2). When the pedal lever (2) is not operated, the tip of the plunger (15) comes into contact with the inner surface of the bottom (9b) of the stopper (9), and the stopper (9) Cylindrical cup The inner diameter dimension of the portion (9a) is set to a size that can loosely receive the distal end portion of the guide member, and when the pedal lever is not operated, the cup-shaped portion of the stopper is connected to the guide member and the plunger ( 15), and when the pedal lever (2) is stepped on, the stopper (9) including the cup-shaped portion (9a) is moved from the guide member (14) and the distal ends of the plunger (15). It is characterized by leaving .

このような本発明によれば、ペダルレバーの非操作時は、ガイド部材及びプランジャの先端部が常にストッパのカップ形部分(カバー)で覆われるので、塵埃などの夾雑物がプランジャの摺動部に付着せずに済む。特に、カバー(カップ形部分)をストッパに一体形成し得るので、別部材のカバーをスイッチに組み付ける必要が無いため、部品点数および組立工数の増加を招かずに済む。また、ストッパのカップ形部分(カバー)の内周径を相対的に大きくすることにより、各部材間の位置精度のばらつきに左右されずにストッパを組み付けることができる。
According to the present invention, when the pedal lever is not operated, the guide member and the tip of the plunger are always covered with the cup-shaped portion (cover) of the stopper. It is not necessary to adhere to. In particular, since the cover ( cup-shaped part ) can be integrally formed with the stopper, there is no need to assemble a cover of a separate member to the switch, so that it is not necessary to increase the number of parts and the number of assembly steps. Moreover, by making the inner peripheral diameter of the cup-shaped portion (cover) of the stopper relatively large, the stopper can be assembled without being affected by variations in positional accuracy between the members.

以下に添付の図面を参照して本発明について詳細に説明する。   Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

図1は、本発明が適用されたブレーキペダルの周辺を示している。このブレーキペダル1のレバー2は、ダッシュボードアッパ3の内面に固定されたペダルブラケット4に、その上端がピン5をもって揺動可能に支持されている。そしてレバー2の中間部が、図示されないマスターシリンダのピストンに連結されている。   FIG. 1 shows the periphery of a brake pedal to which the present invention is applied. The lever 2 of the brake pedal 1 is supported by a pedal bracket 4 fixed to the inner surface of the dashboard upper 3 so that the upper end of the lever 2 can swing with a pin 5. And the intermediate part of the lever 2 is connected with the piston of the master cylinder which is not illustrated.

ペダルブラケット4の上部には、スイッチブラケット6が一体的に設けられており、本発明に係るペダルスイッチ7が、このスイッチブラケット6に取り付けられている。   A switch bracket 6 is integrally provided on the top of the pedal bracket 4, and a pedal switch 7 according to the present invention is attached to the switch bracket 6.

レバー2の側面には、ストッパブラケット8が溶接付けされている。このストッパブラケット8には、ペダルスイッチ7の取付位置と対応する位置に、比較的軟質なゴム材で形成されたストッパ9が取り付けられている。   A stopper bracket 8 is welded to the side surface of the lever 2. A stopper 9 made of a relatively soft rubber material is attached to the stopper bracket 8 at a position corresponding to the attachment position of the pedal switch 7.

ペダルスイッチ7は、図2に詳しく示したように、両端が開口し、且つ軸方向中間部に隔壁11が設けられた筒状のケーシング12と、ケーシング12の一方の開口を塞ぐカバー13と、カバー13に一体形成された小径の筒状をなすガイド部14に摺合したプランジャ15と、ケーシング12の一方の開口面側に設けられた固定接点16と、中間隔壁11と固定接点16との間にコイルばね17によって弾発的に浮動支持された可動接点18と、プランジャ15を突出方向へ弾発付勢するコイルばね19と、固定接点16に連結され、且つケーシング12の他方の開口側に内設された端子ピン20とからなっている。そしてケーシング12の他方の開口側が、ストップランプ回路(図示せず)に固定接点を接続する雄カプラCをなしている。   As shown in detail in FIG. 2, the pedal switch 7 includes a cylindrical casing 12 having both ends opened and a partition wall 11 provided in an axially intermediate portion, a cover 13 that closes one opening of the casing 12, Between the plunger 15 slidably engaged with the guide portion 14 having a small-diameter cylindrical shape integrally formed with the cover 13, the fixed contact 16 provided on one opening surface side of the casing 12, and the intermediate partition 11 and the fixed contact 16. A movable contact 18 that is elastically supported by a coil spring 17, a coil spring 19 that elastically biases the plunger 15 in a protruding direction, and a fixed contact 16, and is connected to the other opening side of the casing 12. The terminal pin 20 is provided internally. The other opening side of the casing 12 forms a male coupler C that connects a fixed contact to a stop lamp circuit (not shown).

プランジャ15は、ガイド部14の開口からその先端を幾分か突出させた状態で抜け止めされており、コイルばね19の弾発力に抗してプランジャ15を押し込むことにより、プランジャ15の内側端に押されて可動接点18が固定接点16から離間し、電気的な導通が断たれるようになっている。   The plunger 15 is prevented from coming off with its tip protruding somewhat from the opening of the guide portion 14. By pushing the plunger 15 against the elastic force of the coil spring 19, the inner end of the plunger 15 is stopped. As a result, the movable contact 18 is separated from the fixed contact 16 and the electrical conduction is cut off.

このペダルスイッチ7は、ガイド部14の外周面に形成された雄ねじを合成樹脂製のクリップ21に形成された雌ねじに螺合することにより、スイッチブラケット6に固定される。   The pedal switch 7 is fixed to the switch bracket 6 by screwing a male screw formed on the outer peripheral surface of the guide portion 14 with a female screw formed on the synthetic resin clip 21.

これにより、ブレーキペダル1の非操作時は、レバー2に設けられたストッパ9に当接してペダルスイッチ7のプランジャ15が押し込まれ、ストップランプ回路への通電が断たれてストップランプが消灯する。そしてブレーキペダル1を踏み込むと、プランジャ15の先端からストッパ9が離れてプランジャ15が突出し、可動接点18が固定接点16に接触してストップランプ回路への電流が流れてストップランプが点灯する。   As a result, when the brake pedal 1 is not operated, the plunger 15 of the pedal switch 7 is pushed in contact with the stopper 9 provided on the lever 2, the power supply to the stop lamp circuit is cut off, and the stop lamp is turned off. When the brake pedal 1 is depressed, the stopper 9 moves away from the tip of the plunger 15, the plunger 15 protrudes, the movable contact 18 contacts the fixed contact 16, current flows to the stop lamp circuit, and the stop lamp is turned on.

ストッパ9は、一方が開放されたカップ形をなし、その底壁9bがストッパブラケット8に取り付けられており、ブレーキペダル1の非操作時は、その底壁9bの内面にプランジャ15の先端が当接するようになっている。そしてカップ形をなす部分9aの内方にプランジャ15及びガイド部14の先端部を緩く受容するようになっている。このように、カップ形をなす部分9aの内周径寸法を、ガイド部14の先端部を緩く受容できる大きさとすることにより、各部材間の位置精度のばらつきに左右されずにストッパ9を組み付けることができる。   The stopper 9 has an open cup shape, and its bottom wall 9b is attached to the stopper bracket 8. When the brake pedal 1 is not operated, the tip of the plunger 15 contacts the inner surface of the bottom wall 9b. It comes to touch. And the front-end | tip part of the plunger 15 and the guide part 14 is loosely received inside the part 9a which makes | forms a cup shape. In this way, by setting the inner peripheral diameter of the cup-shaped portion 9a to a size that can accept the tip of the guide portion 14 loosely, the stopper 9 is assembled without being affected by variations in positional accuracy between the members. be able to.

このストッパ9によると、ブレーキペダル1の非操作時は、ストッパ9のカップ形をなす部分9aの内方に受容されてガイド部14の開口端とプランジャ15の先端部とが覆い隠されるため、プランジャ15の摺動部に塵埃などの夾雑物が付着することが防止される。   According to this stopper 9, when the brake pedal 1 is not operated, it is received inside the cup-shaped portion 9a of the stopper 9 and the opening end of the guide portion 14 and the tip end portion of the plunger 15 are covered. It is possible to prevent foreign matters such as dust from adhering to the sliding portion of the plunger 15.

ブレーキペダル1を踏み込んでいる間は、ガイド部14の開口端およびプランジャ15の先端部は露出するが、隠蔽されている時間に比して露出時間は圧倒的に少ないので、この間に及ぼされる影響は殆ど無視し得る。   While the brake pedal 1 is depressed, the opening end of the guide portion 14 and the tip end portion of the plunger 15 are exposed, but the exposure time is overwhelmingly shorter than the concealed time. Is almost negligible.

以上、プランジャ15に外力が加わると接点が開く、所謂常閉接点を持つスイッチを例示して本発明を詳しく説明したが、本発明は上記に限定されず、プランジャ15に外力が加わると接点が閉じるように構成された常開接点のスイッチにも等しく適用可能である。更に、上記実施例は、ペダルストロークの初期に接点が閉じるものに対する適用例のみを上げたが、本発明は、例えば、クラッチペダルを一杯に踏み込まないとエンジンが始動できないようにするクラッチインターロック機構のように、ペダルが一杯に踏み込まれた時に接点が閉じるように構成されたものにも適用可能である。   The present invention has been described in detail by exemplifying a switch having a so-called normally closed contact that opens when an external force is applied to the plunger 15. However, the present invention is not limited to the above, and the contact is opened when an external force is applied to the plunger 15. The present invention is equally applicable to normally open contact switches configured to close. Furthermore, while the above embodiment has only been applied to the case where the contact is closed at the initial stage of the pedal stroke, the present invention provides a clutch interlock mechanism that prevents the engine from starting unless the clutch pedal is fully depressed, for example. As described above, the present invention is also applicable to a configuration in which the contact is closed when the pedal is fully depressed.

本発明にかかるペダルスイッチにおける夾雑物の付着防止構造は、部品点数及び組立工数の増加を招かずに、ペダルスイッチにおけるプランジャの摺動部に塵埃などの夾雑物が付着することを防止し得るので、プランジャ式リミットスイッチ等の防塵構造として有用である。   The structure for preventing the adhesion of foreign matters in the pedal switch according to the present invention can prevent foreign matters such as dust from adhering to the sliding portion of the plunger in the pedal switch without increasing the number of parts and the number of assembly steps. It is useful as a dust-proof structure for plunger type limit switches.

本発明が適用されたブレーキペダル周辺の側面図である。It is a side view of the brake pedal periphery to which the present invention is applied. 本発明が適用されたペダルスイッチの断面図である。It is sectional drawing of the pedal switch to which this invention was applied.

符号の説明Explanation of symbols

1 ブレーキペダル
2 レバー
7 ペダルスイッチ
9 ストッパ
9a カップ状部分
14 ガイド部
15 プランジャ
DESCRIPTION OF SYMBOLS 1 Brake pedal 2 Lever 7 Pedal switch 9 Stopper 9a Cup-shaped part 14 Guide part 15 Plunger

Claims (1)

車体側に揺動自在に支持されたペダルレバーの作動状態を検出すべく、車体側に固定された筒状のガイド部材に摺動自在に嵌合して当該ガイド部材より支持された接点開閉用のプランジャを備えるペダルスイッチにおける夾雑物の付着防止構造であって、
前記ペダルレバーにカップ形のストッパがその底部をもって固定装着され、前記ペダルレバーの非操作時に、前記プランジャの先端が前記ストッパの前記底部内面に当接し、前記ストッパの筒状のカップ形部分の内径寸法が、前記ガイド部材の先端部を緩く受容できる大きさに設定されており、前記ペダルレバーの非操作時に、前記ストッパの前記カップ形部分が前記ガイド部材及び前記プランジャの先端部を覆い、前記ペダルレバーの踏み込みにより、前記カップ形部分を含んで前記ストッパが前記ガイド部材及び前記プランジャの先端部より離れることを特徴とするペダルスイッチにおける夾雑物の付着防止構造。
For detecting the operating state of a pedal lever supported swingably on the vehicle body side, for contact opening and closing that is slidably fitted to a cylindrical guide member fixed on the vehicle body side and supported by the guide member In the pedal switch having the plunger of
A cup-shaped stopper is fixedly attached to the pedal lever with its bottom, and when the pedal lever is not operated, the tip of the plunger contacts the inner surface of the bottom of the stopper, and the inner diameter of the cylindrical cup-shaped portion of the stopper The dimension is set to a size that can loosely receive the tip of the guide member, and when the pedal lever is not operated, the cup-shaped portion of the stopper covers the guide member and the tip of the plunger, A structure for preventing foreign matter from adhering to a pedal switch , wherein the stopper, including the cup-shaped portion, is separated from the guide member and the tip end portion of the plunger when the pedal lever is depressed .
JP2003351816A 2003-10-10 2003-10-10 Contamination prevention structure for pedal switch Expired - Fee Related JP4268494B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2003351816A JP4268494B2 (en) 2003-10-10 2003-10-10 Contamination prevention structure for pedal switch
CNB2004100808096A CN100355000C (en) 2003-10-10 2004-10-09 Structure for preventing other materials attaching on pedal switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003351816A JP4268494B2 (en) 2003-10-10 2003-10-10 Contamination prevention structure for pedal switch

Publications (2)

Publication Number Publication Date
JP2005116446A JP2005116446A (en) 2005-04-28
JP4268494B2 true JP4268494B2 (en) 2009-05-27

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CN (1) CN100355000C (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100811693B1 (en) * 2007-05-02 2008-03-11 주식회사 동희산업 Device for fixing pedal switch of automotive vehicle
KR100811694B1 (en) * 2007-05-02 2008-03-11 주식회사 동희산업 Device for fixing pedal switch of automotive vehicle
KR101189351B1 (en) 2009-09-01 2012-10-09 기아자동차주식회사 One Touch Stop Lamp Switch of Vehicle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08119092A (en) * 1994-10-20 1996-05-14 Tokico Ltd Pneumatic type booster device
JPH09226542A (en) * 1996-02-29 1997-09-02 Suzuki Motor Corp Pedal device

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CN1606111A (en) 2005-04-13
CN100355000C (en) 2007-12-12
JP2005116446A (en) 2005-04-28

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