JP2010143508A - Operating lever mounting structure of hydraulic master cylinder device - Google Patents

Operating lever mounting structure of hydraulic master cylinder device Download PDF

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JP2010143508A
JP2010143508A JP2008325179A JP2008325179A JP2010143508A JP 2010143508 A JP2010143508 A JP 2010143508A JP 2008325179 A JP2008325179 A JP 2008325179A JP 2008325179 A JP2008325179 A JP 2008325179A JP 2010143508 A JP2010143508 A JP 2010143508A
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circumferential groove
lever
piece
substrate portion
fitting recess
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JP4713630B2 (en
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Genichi Hatagoshi
弦一 波多腰
Toru Aonuma
亨 青沼
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Nissin Kogyo Co Ltd
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Nissin Kogyo Co Ltd
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Priority to JP2008325179A priority Critical patent/JP4713630B2/en
Priority to TW98144244A priority patent/TWI378880B/en
Priority to CN 200910262201 priority patent/CN101761522B/en
Publication of JP2010143508A publication Critical patent/JP2010143508A/en
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  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
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  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an operating lever mounting structure capable of simply performing attaching and detaching of a lever pin and facilitating assembling or changing work of the operating lever. <P>SOLUTION: The lever pin 9 is equipped with a shaft part 9a, a large diameter head part 9b, and a peripheral groove 9c provided at a projection base part of the shaft part 9a. A retaining member 12 is equipped with a substrate part 12a, a peripheral groove fit-in recessed part 12b opened to one side of the substrate part 12a and formed in a U shaped form, a rising piece 12c provided on the other side of the substrate part 12a, a resilient piece 12d extending from the rising piece 12c and elastically abutting on the peripheral surface of the shaft part 9a, and a turning restriction piece 12e extending from the substrate part 12a in the direction parallel to the substrate part 12a. A pair of turning preventive projections 13a, 13b which prevents the turning of the retaining member 12 by locking both the side edges of the turning restriction piece 12e are projectingly provided on a turning piece 3f of the operating lever 3. A switch mounting part 5e which prevents the peripheral groove fit-in recessed part 12b from moving to the direction separated from the peripheral groove 9c is provided and a vehicle body front side surface 5f of the switch mounting part 5e is made to be a separation preventing projection. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、液圧マスタシリンダ装置の操作レバー取付構造に係り、詳しくは、シリンダボディに突設したレバーブラケットに設けたレバー取付部と、操作レバーに形成した回動基部とを重合し、該回動基部と前記レバー取付部との重合部にピン挿通孔を貫通形成し、該ピン挿通孔にレバーピンを装着して前記操作レバーをレバーブラケットに回動可能に取り付けた液圧マスタシリンダ装置の操作レバー取付構造に関する。   The present invention relates to an operation lever mounting structure of a hydraulic master cylinder device, and more specifically, a lever mounting portion provided on a lever bracket protruding from a cylinder body and a rotation base formed on the operation lever are superposed, A hydraulic pressure master cylinder device in which a pin insertion hole is formed through the overlapping portion of the rotation base portion and the lever attachment portion, a lever pin is attached to the pin insertion hole, and the operation lever is rotatably attached to the lever bracket. The present invention relates to an operation lever mounting structure.

従来、液圧マスタシリンダ装置の操作レバー取付構造としては、ハンドルバーに取り付けた液圧マスタシリンダのシリンダボディに二股状のレバーブラケットを突設し、該レバーブラケットの一方のレバー取付部と他方のレバー取付部との間に、操作レバーの回動基部を挿入し、レバー取付部と回動基部の重合部に設けたピン挿通孔にレバーピンを装着して操作レバーをレバーブラケットに回動可能に取り付けるもの(例えば、特許文献1参照。)や、操作レバーの回動基部を二股状に形成し、マスタシリンダのシリンダボディに突設した板状のレバーブラケットを二股状の前記回動基部に挿入し、レバー取付部と回動基部の重合部にレバーピンを装着して操作レバーをレバーブラケットに回動可能に取り付けるもの(例えば、特許文献2参照。)があった。
実開昭54−128241号公報 特開2008−126989号公報
Conventionally, as an operation lever mounting structure of a hydraulic master cylinder device, a bifurcated lever bracket protrudes from a cylinder body of a hydraulic master cylinder mounted on a handlebar, and one lever mounting portion of the lever bracket and the other are mounted. Insert the rotation base of the operation lever between the lever mounting part and attach the lever pin to the pin insertion hole provided in the overlapping part of the lever mounting part and the rotation base so that the operation lever can be rotated to the lever bracket A rotating base of an attachment lever (for example, see Patent Document 1) or an operation lever is formed in a bifurcated shape, and a plate-like lever bracket protruding from the cylinder body of the master cylinder is inserted into the bifurcated rotational base. A lever pin is attached to the overlapping portion of the lever mounting portion and the rotation base portion, and the operation lever is rotatably attached to the lever bracket (for example, see Patent Document 2). .) There was.
Japanese Utility Model Publication No. 54-128241 JP 2008-126989 A

しかし、従来の操作レバー取付構造では、レバーピンの頭部と軸部の下端とに溝部をそれぞれ形成し、両溝部に止めリングを嵌入してレバーピンをレバーホルダへ固定したり、レバーピンの先端に雄ねじ部を形成し、回動基部から突出するレバーピンの雄ねじ部にナットを取り付けてレバーピンを操作レバーの回動基部に固定したりしていることから、レバーピンを着脱する際に工具が必要であり、操作レバーの交換に手間が掛かり、メンテナンス性が良くなかった。   However, in the conventional operation lever mounting structure, groove portions are formed in the head portion of the lever pin and the lower end of the shaft portion, and a retaining ring is fitted in both groove portions to fix the lever pin to the lever holder, or a male screw is attached to the tip of the lever pin. Since the nut is attached to the male screw part of the lever pin that protrudes from the rotating base and the lever pin is fixed to the rotating base of the operating lever, a tool is required to attach and detach the lever pin. Replacing the operating lever took time and maintenance was not good.

そこで本発明は、レバーピンを確実に装着できると共に、レバーピンの着脱を簡便に行うことができ、操作レバーの組み付け及び交換作業を容易に行うことができる液圧マスタシリンダ装置の操作レバー取付構造を提供することを目的としている。   Therefore, the present invention provides an operating lever mounting structure for a hydraulic master cylinder device that can securely mount the lever pin, can easily attach and detach the lever pin, and can easily assemble and replace the operating lever. The purpose is to do.

上記目的を達成するため、本発明の第1の構造では、液圧マスタシリンダのシリンダボディに突設したレバーブラケットのレバー取付部と、操作レバーの回動基部とを重合し、該回動基部と前記レバー取付部との重合部にピン挿通孔を貫通形成し、前記ピン挿通孔に挿入した前記レバーピンを抜止部材で抜け止めして装着することにより、前記操作レバーを前記レバーブラケットに回動可能に取り付けた液圧マスタシリンダ装置の操作レバー取付構造において、前記レバーピンは、前記ピン挿通孔に挿入される軸部と、該軸部の一端に設けられて前記重合部の一側面に当接する大径頭部と、前記重合部の他側面から突出した前記軸部の突出基部に設けられた周溝とを備え、前記抜止部材は、前記重合部の他側面に平行な面を有する基板部と、該基板部の一側方を開口させてU字状に形成した周溝嵌着凹部と、前記基板部の他側方から該基板部に直交する方向に屈曲した立上片と、該立上片から延出して前記周溝嵌着凹部と前記周溝とが嵌着したときに前記周溝より突出方向先端側の前記軸部の周面に弾発的に当接する弾発片と、前記基板部から該基板部に平行な方向に延出した回動規制片とを備え、前記重合部の他側面に前記回動規制片の両側縁が係止して前記抜止部材を回り止めする一対の回り止め突起を突設し、前記周溝嵌着凹部と前記周溝とが嵌着した状態で、且つ、前記回動規制片が前記回り止め突起に係止した状態で、前記重合部の他側面における前記基板部の他側方に対向する位置に、前記周溝嵌着凹部が前記周溝から離脱する方向に移動したときに前記基板部の他側方が当接して前記周溝嵌着凹部が前記周溝から離脱することを防止する離脱防止突起を設けたことを特徴としている。   In order to achieve the above object, in the first structure of the present invention, the lever mounting portion of the lever bracket projecting from the cylinder body of the hydraulic master cylinder and the rotating base portion of the operating lever are overlapped to form the rotating base portion. A pin insertion hole is formed through the overlapping portion of the lever mounting portion and the lever pin inserted into the pin insertion hole is secured by a retaining member to be mounted, so that the operation lever is pivoted to the lever bracket. In the operation lever mounting structure of the hydraulic master cylinder device that can be mounted, the lever pin is provided in a shaft portion inserted into the pin insertion hole and one end of the shaft portion and comes into contact with one side surface of the overlapping portion. A substrate portion having a large-diameter head and a circumferential groove provided in a protruding base portion of the shaft portion protruding from the other side surface of the overlapping portion, wherein the retaining member has a surface parallel to the other side surface of the overlapping portion; When, A circumferential groove fitting recess formed in a U shape by opening one side of the substrate part, a rising piece bent in a direction perpendicular to the substrate part from the other side of the substrate part, and the rising piece A resilient piece that elastically contacts the circumferential surface of the shaft portion on the distal side in the protruding direction from the circumferential groove when the circumferential groove fitting concave portion and the circumferential groove are fitted, and the substrate A pair of rotation restricting pieces extending in a direction parallel to the substrate portion from the portion, and a pair of edges that prevent both sides of the turn restricting pieces from being locked to the other side surface of the overlapping portion A rotation preventing projection is provided so that the circumferential groove fitting recess and the circumferential groove are fitted, and the rotation restricting piece is locked to the rotation preventing projection, and the other overlapping portions. When the circumferential groove fitting recess moves in a direction facing the other side of the substrate portion on the side surface in a direction away from the circumferential groove, the other side of the substrate portion There is characterized in that the circumferential groove fitting recess abuts is provided separation preventing protrusion for preventing the disengagement from the circumferential groove.

さらに、第2の構造では、液圧マスタシリンダのシリンダボディに突設したレバーブラケットのレバー取付部と、操作レバーの回動基部とを重合し、該回動基部と前記レバー取付部との重合部にピン挿通孔を貫通形成し、前記ピン挿通孔に挿入した前記レバーピンを抜止部材で抜け止めして装着することにより、前記操作レバーを前記レバーブラケットに回動可能に取り付けた液圧マスタシリンダ装置の操作レバー取付構造において、前記レバーピンは、前記ピン挿通孔に挿入される軸部と、該軸部の一端に設けられて前記重合部の一側面に当接する大径頭部と、前記重合部の他側面から突出した前記軸部の突出基部に設けられた周溝とを備え、前記抜止部材は、前記重合部の他側面に平行な面を有する基板部と、該基板部の一側方を開口させてU字状に形成した周溝嵌着凹部と、前記基板部の他側方から該基板部に直交する方向に屈曲した立上片と、該立上片から延出して前記周溝嵌着凹部と前記周溝とが嵌着したときに前記周溝より突出方向先端側の前記軸部の周面に弾発的に当接する弾発片と、前記基板部から該基板部に平行な方向に延出した回動規制片とを備え、前記重合部の他側面に前記回動規制片の両側縁が係止して前記抜止部材を回り止めする一対の回り止め突起を突設し、前記周溝嵌着凹部と前記周溝とが嵌着した状態で、且つ、前記回動規制片が前記回り止め突起に係止した状態で、該一対の回り止め突起と前記回動規制片の両側縁との係止により、前記周溝嵌着凹部が前記周溝から離脱する方向への移動を防止することを特徴としている。   Further, in the second structure, the lever mounting portion of the lever bracket projecting from the cylinder body of the hydraulic master cylinder and the rotating base portion of the operation lever are overlapped, and the rotating base portion and the lever mounting portion are overlapped. A hydraulic master cylinder in which the operation lever is rotatably attached to the lever bracket by forming a pin insertion hole in the portion and preventing the lever pin inserted into the pin insertion hole from being attached with a retaining member. In the operation lever mounting structure of the apparatus, the lever pin includes a shaft portion that is inserted into the pin insertion hole, a large-diameter head that is provided at one end of the shaft portion and contacts one side surface of the overlapping portion, and the overlapping portion. And a circumferential groove provided on a protruding base portion of the shaft portion protruding from the other side surface of the portion, and the retaining member includes a substrate portion having a surface parallel to the other side surface of the overlapping portion, and one side of the substrate portion Open the way A U-shaped circumferential groove fitting recess, a rising piece bent in a direction perpendicular to the substrate portion from the other side of the substrate portion, and the circumferential groove fitting extending from the rising piece A resilient piece that elastically contacts the circumferential surface of the shaft portion on the distal side in the protruding direction from the circumferential groove when the recess and the circumferential groove are fitted, and a direction parallel to the substrate portion from the substrate portion A rotation restricting piece extending to the opposite side of the overlapping portion, and a pair of anti-rotation projections for locking the retaining member by locking both side edges of the rotation restricting piece, In a state where the circumferential groove fitting recess and the circumferential groove are fitted, and in a state where the rotation restricting piece is locked to the rotation preventing projection, both sides of the pair of rotation preventing projection and the rotation restricting piece The circumferential groove fitting concave portion is prevented from moving in a direction away from the circumferential groove by locking with the edge.

また、前記回動規制片は、前記基板部の他側方から、前記周溝嵌着凹部の開口方向と直交する方向に延出するものや、前記基板部の前記周溝嵌着凹部の開口部先端から、前記周溝嵌着凹部の開口方向と同一方向に延出するものや、前記基板部の前記周溝嵌着凹部の開口部先端から、前記周溝嵌着凹部の開口方向と直交する方向に延出するものでも良く、回動規制片の先端を折曲して摘み部を形成しても良い。   The rotation restricting piece extends from the other side of the substrate portion in a direction orthogonal to the opening direction of the circumferential groove fitting recess, or the opening of the circumferential groove fitting recess of the substrate portion. From the front end of the peripheral portion, the one extending in the same direction as the opening direction of the peripheral groove fitting recess, or from the front end of the peripheral groove fitting recess of the substrate portion, perpendicular to the opening direction of the peripheral groove fitting recess It may extend in the direction in which it is made, or the tip of the rotation restricting piece may be bent to form the knob.

さらに、前記基板部は、前記周溝をレバーピンを挿入する方向に押圧する押圧部を備えていても良い。また、前記抜止部材は、一枚の板状部材を、切抜き及び折曲して形成することもできる。   Further, the substrate portion may include a pressing portion that presses the circumferential groove in a direction in which a lever pin is inserted. Further, the retaining member can be formed by cutting and bending a single plate-like member.

本発明の液圧マスタシリンダ装置の操作レバー取付構造によれば、レバーピンの一端部に形成した周溝と、該一端部が突出するレバーブラケットと操作レバーとの重合部に設けた回り止め突起とに着脱可能に係合する抜止部材を用いることにより、簡単な構造でレバーピンを前記重合部に確実に装着できると共に、簡単な構造で着脱可能に保持させることができる。   According to the operation lever mounting structure of the hydraulic master cylinder device of the present invention, the circumferential groove formed at one end portion of the lever pin, and the detent projection provided at the overlapping portion of the lever bracket projecting from the one end portion and the operation lever By using the retaining member that is detachably engaged with the lever pin, the lever pin can be securely attached to the overlapping portion with a simple structure and can be held detachably with a simple structure.

第1の構造では、抜止部材は、周溝に抜止片の周溝嵌着凹部を嵌着した状態で、レバーピンを中心に回動規制片を回転させて、回動規制片を回り止め突起に係止させることにより、抜止部材の回り止めを図ることができる共に、離脱防止突起によって、抜止部材が周溝から離脱することを防止でき、レバーピンを重合部に確実に装着できる。また、回動規制片を回転させて回り止め突起から回動規制片を外し、抜止片を周溝から抜き出すことにより、レバーピンをピン挿通孔から外すことができるので、操作レバーの交換作業を簡便に行うことができメンテナンス性の向上を図ることができる。   In the first structure, the retaining member rotates the rotation restricting piece around the lever pin in a state where the circumferential groove fitting recess of the retaining piece is fitted in the circumferential groove, and the rotation restricting piece becomes the rotation preventing projection. By locking, the retaining member can be prevented from rotating, and the retaining member can be prevented from detaching from the circumferential groove by the separation preventing projection, and the lever pin can be securely attached to the overlapping portion. In addition, the lever pin can be removed from the pin insertion hole by rotating the rotation restricting piece, removing the rotation restricting piece from the anti-rotation protrusion, and removing the retaining piece from the circumferential groove, so the operation lever can be easily replaced. It is possible to improve the maintainability.

第2の構造では、抜止部材は、回動規制片を回り止め突起を設けた方向に向けて周溝嵌着凹部を周溝に形成すると共に、回動規制片を回り止め突起に係止させることにより、抜止部材の回り止めを図ることができる共に、前記回り止め突起の回動規制片との係合により、抜止部材が周溝から離脱することを防止でき、レバーピンを重合部に確実に装着できる。また、抜止片を周溝から抜き出し、回動規制片を回り止め突起から外すことにより、レバーピンをピン挿通孔から外すことができるので、操作レバーの交換作業を簡便に行うことができメンテナンス性の向上を図ることができる。   In the second structure, the retaining member forms the circumferential groove fitting recess in the circumferential groove so that the rotation regulating piece is directed in the direction in which the rotation preventing projection is provided, and the rotation regulating piece is locked to the rotation preventing projection. Thus, the retaining member can be prevented from rotating, and the retaining member can be prevented from detaching from the circumferential groove by the engagement of the rotation preventing projection with the rotation restricting piece, so that the lever pin is securely attached to the overlapping portion. Can be installed. In addition, the lever pin can be removed from the pin insertion hole by removing the retaining piece from the circumferential groove and removing the rotation restricting piece from the rotation-preventing projection. Improvements can be made.

また、前記回動規制片を、前記基板部の他側方から、前記周溝嵌着凹部の開口方向と直交する方向に延出したり、前記基板部の前記周溝嵌着凹部の開口部先端から、前記周溝嵌着凹部の開口方向と同一方向に延出したり、前記基板部の前記周溝嵌着凹部の開口部先端から、前記周溝嵌着凹部の開口方向と直交する方向に延出することにより、基板部と一体に簡単に形成することができ、さらに、回動規制片の先端を折曲して摘み部を形成すれば、該摘み部を持って、回動規制片を回り止め突起に容易に係止させることができる。さらに、抜止片に、周溝をレバーピンを挿入する方向に押圧する押圧部を形成することにより、レバーピンと抜止部材の振動やガタ付きを抑えることができる。また、前記抜止部材を、一枚の板状部材を切り抜き及び折曲して形成すれば、抜止部材を安価に製造でき、コストの低減化を図ることができる。   Further, the rotation restricting piece extends from the other side of the substrate part in a direction orthogonal to the opening direction of the circumferential groove fitting recess, or the opening end of the circumferential groove fitting recess of the substrate part Extending in the same direction as the opening direction of the circumferential groove fitting recess, or extending from the opening end of the circumferential groove fitting recess of the substrate portion in a direction perpendicular to the opening direction of the circumferential groove fitting recess. By pulling out, it can be easily formed integrally with the substrate part.Further, if the knob is formed by bending the tip of the rotation restricting piece, the rotation restricting piece is held by holding the knob. It can be easily locked to the rotation stop projection. Furthermore, by forming a pressing portion that presses the circumferential groove in the direction in which the lever pin is inserted in the retaining piece, it is possible to suppress vibration and backlash of the lever pin and the retaining member. Further, if the retaining member is formed by cutting and bending a single plate-like member, the retaining member can be manufactured at low cost, and the cost can be reduced.

図1乃至図4は本発明の第1形態例を示す液圧マスタシリンダ装置の操作レバー取付構造を示す図で、図1は操作レバー取付構造を示す要部説明図、図2は図3のII−II断面図、図3は液圧マスタシリンダ装置の一部断面側面図、図4はレバーピンと抜止部材の分解斜視図である。   1 to 4 are views showing an operating lever mounting structure of a hydraulic master cylinder device showing a first embodiment of the present invention, FIG. 1 is an explanatory view of a main part showing the operating lever mounting structure, and FIG. II-II sectional view, FIG. 3 is a partial sectional side view of a hydraulic master cylinder device, and FIG. 4 is an exploded perspective view of a lever pin and a retaining member.

本形態例に示す液圧マスタシリンダ装置1は、液圧マスタシリンダ2と操作レバー3とを組み合わせたフロントブレーキ用の液圧マスタシリンダ装置で、バーハンドル車両の車体前部で前輪を操向するハンドルバー4に取り付けている。   A hydraulic master cylinder device 1 shown in the present embodiment is a hydraulic master cylinder device for a front brake in which a hydraulic master cylinder 2 and an operation lever 3 are combined. The hydraulic master cylinder device 1 steers front wheels at the front of a vehicle body of a bar handle vehicle. It is attached to the handlebar 4.

液圧マスタシリンダ2は、シリンダボディ5の上部にリザーバ5aを一体に備えたリザーバ一体型で、シリンダボディ5には、車体取付ブラケット5bを一体に形成し、前記車体取付ブラケット5bとホルダ6とでアクセルグリップ7よりも車体内側のハンドルバー8を包持し、車体取付ブラケット5bとホルダ6とをボルトで締結してハンドルバー8の車体前部側に取り付けている。   The hydraulic master cylinder 2 is a reservoir-integrated type in which a reservoir 5a is integrally provided on an upper portion of a cylinder body 5, and a body mounting bracket 5b is integrally formed on the cylinder body 5, and the body mounting bracket 5b, the holder 6, Thus, the handle bar 8 inside the vehicle body is held with respect to the accelerator grip 7, and the vehicle body mounting bracket 5b and the holder 6 are fastened with bolts and attached to the front side of the handle bar 8 on the vehicle body.

シリンダボディ5の車体前部側には、略矩形の板状に形成したレバーブラケット5cを一体に突設し、該レバーブラケット5cには、操作レバー3を取り付けるためのレバーピン9を挿通するピン挿通孔5dを穿設している。シリンダボディ5の車体下側の前記レバーブラケット5c側には、スイッチ取付部5eを突設し、該スイッチ取付部5eにブレーキランプスイッチ10をビス11で固着している。   A lever bracket 5c formed in a substantially rectangular plate shape is integrally provided on the vehicle body front side of the cylinder body 5, and a pin insertion through which a lever pin 9 for attaching the operation lever 3 is inserted into the lever bracket 5c. A hole 5d is formed. A switch mounting portion 5e is provided on the lever bracket 5c side of the cylinder body 5 below the vehicle body, and a brake lamp switch 10 is fixed to the switch mounting portion 5e with a screw 11.

操作レバー3は、回動基部3aと、グリップ部3bと、作用腕3cと、スイッチ作動片3dとを備えている。前記回動基部3aは、前記レバーブラケット5cを差し込み可能な間隔を空けて上下に突設した回動片3e,3fを備え、操作レバー3の基端側が開口する二股状に形成している。回動片3e,3fには、前記レバーブラケット5cを回動片3e,3f間に挿入して重ね合わせた状態で(本発明の重合部)前記ピン挿通孔5dと同軸となるピン挿通孔3g,3hを穿設している。また、車体下方側に配置する回動片3fには、前記スイッチ作動片3dを形成している。   The operation lever 3 includes a rotation base portion 3a, a grip portion 3b, an action arm 3c, and a switch operation piece 3d. The pivot base 3a includes pivot pieces 3e and 3f that protrude upward and downward with an interval in which the lever bracket 5c can be inserted, and is formed in a bifurcated shape in which the proximal end side of the operation lever 3 is opened. A pin insertion hole 3g that is coaxial with the pin insertion hole 5d in a state where the lever bracket 5c is inserted between the rotation pieces 3e and 3f and overlapped with the rotation pieces 3e and 3f (overlapping portion of the present invention). , 3h. Further, the switch operating piece 3d is formed on the rotating piece 3f arranged on the lower side of the vehicle body.

レバーピン9はピン挿通孔3e,5d,3fに挿入される軸部9aと、該軸部9aの一端に設けられて車体上方側の回動片3eの外側面に当接する大径頭部9bと、車体下方側の回動片3fから突出した軸部9aの突出基部に設けられた周溝9cとを備えている。   The lever pin 9 includes a shaft portion 9a that is inserted into the pin insertion holes 3e, 5d, and 3f, and a large-diameter head portion 9b that is provided at one end of the shaft portion 9a and contacts the outer surface of the rotating piece 3e on the vehicle body upper side. And a circumferential groove 9c provided at the protruding base portion of the shaft portion 9a protruding from the rotating piece 3f on the vehicle body lower side.

抜止部材12は、回動片3fに平行な面を有する基板部12aと、該基板部12aの一側方を開口させてU字状に形成した周溝嵌着凹部12bと、前記基板部12aの他側方から該基板部12aに直交する方向に屈曲した立上片12cと、該立上片12cの一側部から延出して周溝嵌着凹部12bと前記周溝9cとが嵌着したときに前記周溝9cより突出方向先端側の軸部9aの周面に弾発的に当接する弾発片12dと、基板部12aの他側方から該基板部12aに平行な方向で、且つ、周溝嵌着凹部12bの開口方向と直交する方向に延出する回動規制片12eとを備え、該回動規制片12eの先端部は、立上片12cの方向に折り返されて摘み部12fが形成されている。   The retaining member 12 includes a substrate portion 12a having a surface parallel to the rotating piece 3f, a circumferential groove fitting recess 12b formed in a U shape by opening one side of the substrate portion 12a, and the substrate portion 12a. A rising piece 12c bent from the other side in a direction orthogonal to the substrate portion 12a, and a circumferential groove fitting recess 12b and the circumferential groove 9c extending from one side portion of the rising piece 12c are fitted. A resilient piece 12d that elastically contacts the circumferential surface of the shaft portion 9a on the distal side in the protruding direction from the circumferential groove 9c, and a direction parallel to the substrate portion 12a from the other side of the substrate portion 12a, And a rotation restricting piece 12e extending in a direction orthogonal to the opening direction of the circumferential groove fitting recess 12b, and the tip of the turn restricting piece 12e is folded back in the direction of the rising piece 12c. A portion 12f is formed.

前記回動片3fの下面には、回動規制片12eの両側縁が係止して抜止部材12を回り止めする一対の回り止め突起13a,13bが突設されている。回り止め突起13a,13bは、操作レバー3の非作動時において液圧マスタシリンダ2の軸線とそれぞれ平行に設けられ、さらに、回り止め突起13a,13bの対向面間の中心線T1は、ピン挿通孔3gの中心より車体後部側に配置している。また、車体前方側に位置する回り止め突起13aの車体前方側には、回り止め突起13aの突出端面と回動片3fの下面との間を斜面で連続させたガイド面13cを設けている。また、周溝嵌着凹部12bの開口端の寸法D1は、前記レバーピン9の周溝9cに挿入可能で、且つ、前記レバーピン9の直径D2よりも小さい寸法に形成されている。   A pair of anti-rotation protrusions 13a and 13b are provided on the lower surface of the rotation piece 3f so that both side edges of the rotation restricting piece 12e are locked to prevent the retaining member 12 from rotating. The anti-rotation protrusions 13a and 13b are provided in parallel with the axis of the hydraulic master cylinder 2 when the operation lever 3 is not operated, and the center line T1 between the opposing surfaces of the anti-rotation protrusions 13a and 13b is inserted into the pin. It arrange | positions from the center of the hole 3g to the vehicle body rear part side. In addition, a guide surface 13c is provided on the vehicle body front side of the rotation prevention projection 13a located on the vehicle body front side. The guide surface 13c has a slope between the protruding end surface of the rotation prevention projection 13a and the lower surface of the rotating piece 3f. In addition, the dimension D1 of the opening end of the circumferential groove fitting recess 12b can be inserted into the circumferential groove 9c of the lever pin 9 and is smaller than the diameter D2 of the lever pin 9.

液圧マスタシリンダ2と操作レバー3との組み付けは、まず、レバーブラケット5cと回動片3e,3fとを重ね合わせて重合させた状態で、レバーピン9を車体上方側からピン挿通孔3g,5d,3hに順に挿入し、大径頭部9bをレバーブラケット5cと回動片3e,3fとの重合部の上面に当接させるとともに、重合部の下面から周溝9cより先端側の軸部9aを突出させ、周溝9cに抜止部材12を装着してレバーピン9を抜け止めする。   The hydraulic master cylinder 2 and the operating lever 3 are assembled in the state where the lever bracket 5c and the rotating pieces 3e and 3f are superposed and superposed, and the lever pin 9 is inserted into the pin insertion holes 3g and 5d from above the vehicle body. 3h in order, the large-diameter head portion 9b is brought into contact with the upper surface of the overlapping portion of the lever bracket 5c and the rotating pieces 3e, 3f, and the shaft portion 9a on the tip side from the circumferential groove 9c from the lower surface of the overlapping portion. And the retaining member 12 is attached to the circumferential groove 9c to prevent the lever pin 9 from coming off.

抜止部材12の装着は、まず、図1の想像線に示すように、抜止片12cの周溝嵌着凹部12bの開口を車体後部側に向けてレバーピン9の前方に位置させるとともに、回動規制片12fの延出端をレバーピン9に対して車体外側方向、即ち操作レバー3のグリップ部3b側に向けた状態とし、車体前方からレバーピン9の周溝9cに周溝嵌着凹部12bを挿入する。これにより、周溝9cに基板部12aが嵌着されるとともに弾発片12eがレバーピン9の突出方向先端側の軸部9aの周面に弾発的に当接する。この状態から、矢印Aに示すように、回動規制片12fを車体前方側を通って車体内側位置までレバーピン9を中心にして略180度回転させ、回り止め突起13aを乗り越えて回り止め突起13a,13b間に係合させることにより、抜止部材12が抜け止めされる。さらに、この回動規制片12eが回り止め突起13a,13bに係止した状態で、基板部12aの他側方に対向する位置には、スイッチ取付部5eが突設されており、該スイッチ取付部5eの車体前方側面5fが本発明の離脱防止突起となり、該車体前方側面5fによって、周溝嵌着凹部12bが周溝9cから離脱する方向に移動したときに基板部12aの他側方が当接して周溝嵌着凹部12bが周溝9cから離脱することを防止し、抜止部材12をピン挿通孔3g,5d,3hに確実に装着させることができる。   First, as shown in the imaginary line in FIG. 1, the retaining member 12 is mounted with the opening of the circumferential groove fitting recess 12b of the retaining piece 12c facing the rear side of the vehicle body in front of the lever pin 9 and the rotation restriction. The extending end of the piece 12f is directed toward the outer side of the vehicle body with respect to the lever pin 9, that is, toward the grip portion 3b of the operation lever 3, and the circumferential groove fitting recess 12b is inserted into the circumferential groove 9c of the lever pin 9 from the front of the vehicle body. . Thereby, the board | substrate part 12a is fitted by the circumferential groove 9c, and the elastic piece 12e elastically contact | abuts to the surrounding surface of the axial part 9a of the protrusion direction front end side of the lever pin 9. FIG. From this state, as shown by an arrow A, the rotation restricting piece 12f passes through the front side of the vehicle body and is rotated approximately 180 degrees around the lever pin 9 to the vehicle body inner side position. , 13b, the retaining member 12 is prevented from coming off. Further, a switch mounting portion 5e is projected at a position facing the other side of the substrate portion 12a in a state where the rotation restricting piece 12e is locked to the rotation preventing projections 13a and 13b. The vehicle body front side surface 5f of the portion 5e serves as a detachment prevention protrusion of the present invention, and the vehicle body front side surface 5f causes the other side of the substrate portion 12a to move in the direction in which the circumferential groove fitting recess 12b is detached from the circumferential groove 9c. It is possible to prevent the circumferential groove fitting concave portion 12b from coming off from the circumferential groove 9c, and the retaining member 12 can be securely attached to the pin insertion holes 3g, 5d, and 3h.

さらに、操作レバー3を交換する際には、回動規制片12fを、前記回り止め突起13aを乗り越えて前記矢印Aと反対方向に略180度回動し、基板部12aを周溝9cから取り外すと共に、弾発片12eと軸部9aとの当接を解除して、抜止部材12をレバーピン9から取り外す。これにより、工具を用いることなくレバーピン9をピン挿通孔3g,5d,3hから簡単に取り外して操作レバー3の交換作業を行うことができ、メンテナンス性の向上を図ることができる。   Further, when exchanging the operation lever 3, the rotation restricting piece 12f is turned over approximately 180 degrees in the direction opposite to the arrow A over the rotation preventing projection 13a, and the substrate portion 12a is removed from the circumferential groove 9c. At the same time, the contact between the bullet piece 12 e and the shaft portion 9 a is released, and the retaining member 12 is removed from the lever pin 9. Thereby, the lever pin 9 can be easily removed from the pin insertion holes 3g, 5d, and 3h without using a tool, and the operation lever 3 can be replaced, thereby improving the maintainability.

図5乃至図15は本発明の他の形態例を示すもので、第1形態例と同様の構成要素を示すものには、同一の符号を付して、その詳細な説明は省略する。図5は本発明の第2形態例を示すレバーピンと抜止部材の分解斜視図で、本形態例の抜止部材14は、一対の立上片12c,12cを備え、一方の立上片12cに前記第1形態例と同様の弾発片12dを設け、他方の立上片12cに、前記レバーピン9の突出方向先端側の軸部9aの周面に弾発的に当接する弾発片12gを前記弾発片12dと対向して設けた構造となっており、一対の弾性片12d,12gによって、レバーピン9の軸部9aの先端部両側面を弾発的に支持するようにしている。   FIGS. 5 to 15 show other embodiments of the present invention. Components that are the same as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. FIG. 5 is an exploded perspective view of a lever pin and a retaining member showing a second embodiment of the present invention. The retaining member 14 of the present embodiment includes a pair of rising pieces 12c and 12c, and one rising piece 12c includes the above-described rising pieces 12c. The same resilient piece 12d as in the first embodiment is provided, and the other rising piece 12c is provided with a resilient piece 12g that resiliently contacts the peripheral surface of the shaft portion 9a on the distal end side in the protruding direction of the lever pin 9. The structure is provided so as to be opposed to the elastic piece 12d, and the pair of elastic pieces 12d and 12g elastically support both side surfaces of the tip portion of the shaft portion 9a of the lever pin 9.

図6及び図7は、本発明の第3形態例を示し、図6は抜止部材をレバーピンに装着した状態の要部説明図、図7は抜止部材とレバーピンの分解斜視図である。本形態の抜止部材15は、第1形態例の抜止部材12の周溝嵌着凹部12bの両側の基板部12aに車体下方に向けて湾曲した押圧部12h,12hをそれぞれ備えた構造となっており、基板部12aを周溝9cに装着した際に、押圧部12h,12hが周溝9cをレバーピン9を挿入する方向に押圧し、回動片3eの上面に当接する大径頭部9bと、前記押圧部12h,12hの押圧力とでレバーピン9のガタ付きを抑制している。   6 and 7 show a third embodiment of the present invention. FIG. 6 is an explanatory view of a main part in a state where the retaining member is attached to the lever pin, and FIG. 7 is an exploded perspective view of the retaining member and the lever pin. The retaining member 15 of the present embodiment has a structure in which pressing portions 12h and 12h that are curved toward the lower side of the vehicle body are provided on the substrate portions 12a on both sides of the circumferential groove fitting recess 12b of the retaining member 12 of the first embodiment. When the base plate portion 12a is mounted in the circumferential groove 9c, the pressing portions 12h and 12h press the circumferential groove 9c in the direction in which the lever pin 9 is inserted, and the large-diameter head portion 9b that contacts the upper surface of the rotating piece 3e The play of the lever pin 9 is suppressed by the pressing force of the pressing portions 12h and 12h.

図8及び図9は、本発明の第4形態例を示し、図8は操作レバー取付構造を示す要部説明図、図9はレバーピンと抜止部材の分解斜視図である。本形態例の抜止部材16の回動規制片12iは、基板部12aの周溝嵌着凹部12bの開口部先端から、周溝嵌着凹部12bの開口方向に延出している。また、弾発片12jは、基板部12aの他側部をコ字状に折り返して形成した折返し立上片12kを介して周溝嵌着凹部12bの開口方向に延出している。   8 and 9 show a fourth embodiment of the present invention, FIG. 8 is an explanatory view of a main part showing an operation lever mounting structure, and FIG. 9 is an exploded perspective view of a lever pin and a retaining member. The rotation restricting piece 12i of the retaining member 16 of the present embodiment extends from the opening end of the circumferential groove fitting recess 12b of the substrate portion 12a in the opening direction of the circumferential groove fitting recess 12b. The elastic piece 12j extends in the opening direction of the circumferential groove fitting recess 12b via a folded up piece 12k formed by folding the other side of the substrate portion 12a into a U shape.

回り止め突起13d,13eは、操作レバー3の非作動時において回動規制片12iを、液圧マスタシリンダの軸線と直交し、且つ、ピン挿通孔3hの最も車体内側の接線T2方向に係止させる位置に配置される。また、回り止め突起13dは車体前後方向及び内外方向の幅を回り止め突起13cよりも広く形成すると共に、車体外側から内側に向けて漸次薄肉に、且つ、車体内側部が、車体内側に向けて漸次幅が狭くなるように形成し、ガイド面13fとなっている。   The anti-rotation protrusions 13d and 13e lock the rotation restricting piece 12i in a direction perpendicular to the axis of the hydraulic master cylinder when the operation lever 3 is not operated and in the direction of the tangent T2 inside the vehicle body of the pin insertion hole 3h. It is arranged at the position to make it. Further, the anti-rotation protrusion 13d has a width in the vehicle front-rear direction and inward and outward directions wider than that of the anti-rotation protrusion 13c, and gradually becomes thinner from the outside of the vehicle body to the inside, and the vehicle body inner portion faces the vehicle body inside. The guide surface 13f is formed so that the width gradually decreases.

上述の抜止部材16の装着は、まず、図8の想像線に示すように、弾性片12jを車体後方側に向けて、周溝嵌着凹部12bをレバーピン9の周溝9cに挿入し、基板部12aを周溝9cに嵌着すると共に、弾発片12jを突出方向先端側の軸部9aに当接させる。この状態から、矢印Bに示すように、回動規制片12iをレバーピン9を中心に、車体前方に略90度回動して、回り止め突起13dを乗り越えて回り止め突起13d,13e間に係合する。この係合によって、抜止部材16が回り止めされると共に、レバーピン9が抜け止めされ、また、スイッチ取付部5eの車体前方側面5fによって、抜止部材16の離脱を防止する。また、操作レバー3を交換する際には、回動規制片12iを、前記回り止め突起13dを乗り越えて前記矢印Bと反対方向に略90度回動し、基板部12aを周溝9cから取り外すと共に、弾発片12jと軸部9aとの当接を解除して、抜止部材12をレバーピン9から取り外す。   As shown in the imaginary line in FIG. 8, the mounting of the above-described retaining member 16 is performed by first inserting the circumferential groove fitting recess 12b into the circumferential groove 9c of the lever pin 9 with the elastic piece 12j facing the vehicle body rear side, The portion 12a is fitted into the circumferential groove 9c, and the elastic piece 12j is brought into contact with the shaft portion 9a on the front end side in the protruding direction. From this state, as shown by the arrow B, the rotation restricting piece 12i is rotated approximately 90 degrees forward of the vehicle body around the lever pin 9 and gets over the anti-rotation protrusion 13d and is engaged between the anti-rotation protrusions 13d and 13e. Match. By this engagement, the retaining member 16 is prevented from rotating, and the lever pin 9 is prevented from coming off, and the retaining member 16 is prevented from being detached by the vehicle body front side surface 5f of the switch mounting portion 5e. When the operation lever 3 is replaced, the rotation restricting piece 12i is turned approximately 90 degrees in the direction opposite to the arrow B over the rotation preventing projection 13d, and the substrate portion 12a is removed from the circumferential groove 9c. At the same time, the contact between the bullet piece 12 j and the shaft portion 9 a is released, and the retaining member 12 is removed from the lever pin 9.

図10は、本発明の第5形態例を示すレバーピンと抜止部材の分解斜視図で、本形態例の抜止部材17は、第4形態例の抜止部材16の折返し立上片12kを省略し、立上片12cの一側部から弾発片12mを周溝嵌着凹部12bの開口方向に延出している
図11は、本発明の第6形態例を示すレバーピンと抜止部材の分解斜視図で、本形態例の抜止部材18は、一対の立上片12c,12cを備え、一方の立上片12cに前記第5形態例と同様の弾発片12mを設け、他方の立上片12cに、前記レバーピン9の突出方向先端側の軸部9aの周面に弾発的に当接する弾発片12nを前記弾発片12mと対向して設けた構造となっており、一対の弾性片12m,12nによって、レバーピン9の軸部9aの先端部両側面を弾発的に支持するようにしている。
FIG. 10 is an exploded perspective view of the lever pin and the retaining member showing the fifth embodiment of the present invention. The retaining member 17 of the present embodiment omits the folded up piece 12k of the retaining member 16 of the fourth embodiment, An elastic piece 12m is extended from one side of the rising piece 12c in the opening direction of the circumferential groove fitting recess 12b. FIG. 11 is an exploded perspective view of a lever pin and a retaining member showing a sixth embodiment of the present invention. The retaining member 18 of this embodiment is provided with a pair of rising pieces 12c, 12c, one of the rising pieces 12c is provided with a resilient piece 12m similar to that of the fifth embodiment, and the other rising piece 12c is provided. The lever pin 9 has a structure in which an elastic piece 12n that elastically contacts the peripheral surface of the shaft portion 9a on the front end side in the protruding direction is provided to face the elastic piece 12m, and a pair of elastic pieces 12m. , 12n elastically supports both side surfaces of the tip portion of the shaft portion 9a of the lever pin 9. I am doing it.

図12及び図13は、本発明の第7形態例を示し、図12は操作レバー取付構造を示す要部説明図、図13はレバーピンと抜止部材の分解斜視図である。本形態例の抜止部材19の回動規制片12pは、基板部12aの周溝嵌着凹部12bの開口部先端から、周溝嵌着凹部12bの開口方向と直交する方向に延出し、先端に摘み部12qを備えている。また、弾発片12rは、基板部12aの他側部をコ字状に折り返して形成した折返し立上片12sを介して周溝嵌着凹部12bの開口方向に延出している。   12 and 13 show a seventh embodiment of the present invention, FIG. 12 is an explanatory view of a main part showing an operation lever mounting structure, and FIG. 13 is an exploded perspective view of a lever pin and a retaining member. The rotation restricting piece 12p of the retaining member 19 of the present embodiment extends from the opening end of the circumferential groove fitting recess 12b of the substrate portion 12a in a direction perpendicular to the opening direction of the circumferential groove fitting recess 12b, and extends to the tip. A knob 12q is provided. The elastic piece 12r extends in the opening direction of the circumferential groove fitting recess 12b via a folded up piece 12s formed by folding the other side of the substrate portion 12a into a U shape.

また、回り止め突起13g,13hは、操作レバー3の非作動時において液圧マスタシリンダ2の軸線とそれぞれ平行に設けられ、さらに、回り止め突起13g,13hの対向面間の中心線T3は、ピン挿通孔3gの中心より車体後部側に配置している。さらに、車体前方側に位置する回り止め突起13gは、車体後方側に位置する回り止め突起13hよりも車体前後方向及び車体内外方向に大きく形成され、車体前方側には、回り止め突起13gの突出端面と回動片3fの下面との間を斜面で連続させたガイド面13iを設けている。   Further, the anti-rotation protrusions 13g and 13h are provided in parallel with the axis of the hydraulic master cylinder 2 when the operation lever 3 is not operated, and the center line T3 between the opposing surfaces of the anti-rotation protrusions 13g and 13h is It arrange | positions from the center of the pin insertion hole 3g to the vehicle body rear part side. Further, the anti-rotation protrusion 13g located on the front side of the vehicle body is formed larger in the vehicle front-rear direction and the inside / outside direction of the vehicle body than the anti-rotation protrusion 13h located on the rear side of the vehicle body. A guide surface 13i is provided in which the end surface and the lower surface of the rotating piece 3f are continuous with an inclined surface.

上述の抜止部材19の装着は、まず、図12の想像線に示すように、回動規制片12pが車体前方に突出させた状態で、グリップ部3b側から、周溝嵌着凹部12bをレバーピン9の周溝9cに挿入し、基板部12aを周溝9cに嵌着し、弾発片12rを突出方向先端側の軸部9aに当接させる。この状態から、矢印Cに示すように、回動規制片12pをレバーピン9を中心に、車体内側に略90度回動させて、回り止め突起13gを乗り越えて回動規制片12pを回り止め突起13g,13h間に係合する。この係合によって、抜止部材19が回り止めされると共に、レバーピン9が抜け止めされ、さらに、前記一対の回り止め突起13g,13hと回動規制片12pの両側縁との係止により、周溝嵌着凹部12bが周溝9cから離脱する方向への移動を防止する。   First, as shown in the imaginary line in FIG. 12, the above-described retaining member 19 is mounted with the circumferential groove fitting recess 12b from the grip portion 3b side in the state where the rotation restricting piece 12p protrudes forward of the vehicle body. 9 is inserted into the circumferential groove 9c, the base plate portion 12a is fitted into the circumferential groove 9c, and the elastic piece 12r is brought into contact with the shaft portion 9a on the distal end side in the protruding direction. From this state, as shown by an arrow C, the rotation restricting piece 12p is turned about 90 degrees inward of the vehicle body around the lever pin 9, and over the anti-rotation protrusion 13g, the rotation restricting piece 12p is turned. Engage between 13g and 13h. By this engagement, the retaining member 19 is prevented from rotating, the lever pin 9 is prevented from coming off, and the circumferential groove is retained by the engagement between the pair of rotation preventing projections 13g, 13h and both side edges of the rotation restricting piece 12p. The fitting concave portion 12b is prevented from moving in the direction of separating from the circumferential groove 9c.

また、操作レバー3を交換する際には、回動規制片12pを、前記回り止め突起13gを乗り越えて前記矢印Cと反対方向に略90度回動させ、基板部12aを周溝9cから取り外すと共に、弾発片12rと軸部9aとの当接を解除して、抜止部材19をレバーピン9から取り外す。   When exchanging the operation lever 3, the rotation restricting piece 12p is rotated approximately 90 degrees in the direction opposite to the arrow C over the rotation preventing projection 13g, and the substrate portion 12a is removed from the circumferential groove 9c. At the same time, the contact between the bullet 12 r and the shaft portion 9 a is released, and the retaining member 19 is removed from the lever pin 9.

また、本形態例の抜止部材19の装着は、回動規制片12pを車体内側に突出させて、車体前方から周溝嵌着凹部12bをレバーピン9の周溝9cに挿入し、基板部12aを周溝9cに嵌着し、弾発片12rを突出方向先端側の軸部9aに当接させると共に、回動規制片12pを回り止め突起13g,13h間に係合させるようにしても良い。   Further, the retaining member 19 of this embodiment is mounted by causing the rotation restricting piece 12p to protrude toward the inside of the vehicle body, inserting the circumferential groove fitting recess 12b into the circumferential groove 9c of the lever pin 9 from the front of the vehicle body, and mounting the substrate portion 12a. It may be fitted in the circumferential groove 9c so that the elastic piece 12r is brought into contact with the shaft portion 9a on the front end side in the protruding direction and the rotation restricting piece 12p is engaged between the rotation preventing projections 13g and 13h.

図14は、本発明の第8形態例を示すレバーピンと抜止部材の分解斜視図で、本形態例の抜止部材20は、第7形態例の抜止部材19の折返し立上片12sを省略して、基端部12dの一側部から弾発片12tを周溝嵌着凹部12bの開口方向に延出している。   FIG. 14 is an exploded perspective view of a lever pin and a retaining member showing an eighth embodiment of the present invention. The retaining member 20 of this embodiment omits the folded up piece 12s of the retaining member 19 of the seventh embodiment. The elastic piece 12t extends from one side of the base end 12d in the opening direction of the circumferential groove fitting recess 12b.

図15は、本発明の第9形態例を示すレバーピンと抜止部材の分解斜視図で、本形態例の抜止部材21は、一対の立上片12c,12cを備え、一方の立上片12cに前記第8形態例と同様の弾発片12tを設け、他方の立上片12cに、前記レバーピン9の突出方向先端側の軸部9aの周面に弾発的に当接する弾発片12uを前記弾発片12tと対向して設けた構造となっており、一対の弾性片12t,12uによって、レバーピン9の軸部9aの先端部両側面を弾発的に支持するようにしている。   FIG. 15 is an exploded perspective view of a lever pin and a retaining member showing a ninth embodiment of the present invention. The retaining member 21 of the present embodiment includes a pair of rising pieces 12c and 12c, and one rising piece 12c has a pair of rising pieces 12c and 12c. A resilient piece 12t similar to that of the eighth embodiment is provided, and a resilient piece 12u that resiliently contacts the peripheral surface of the shaft portion 9a on the leading end side in the protruding direction of the lever pin 9 is provided on the other rising piece 12c. The structure is provided so as to face the elastic piece 12t, and the pair of elastic pieces 12t and 12u elastically support both side surfaces of the tip portion of the shaft portion 9a of the lever pin 9.

尚、本発明のレバー取付構造は上述の各形態例に限るものではなく、シリンダボディに二股状のレバーブラケットを突設し、該レバーブラケットの一方のレバー取付部と他方のレバー取付部との間に、操作レバーに形成した板状の回動基部を挿入し、レバー取付部と回動基部の重合部にレバーピンを装着して操作レバーをレバーブラケットに回動可能に取り付けたものでも良く、この場合、回り止め突起は、レバーピンの周溝を備えた一端部が突出するレバーブラケットに形成する。さらに、レバーブラケットと回動基部の双方を板状に形成して重合するものでも良く。前記レバーピンの一端部が突出するレバーブラケットと回動基部のいずれか一方に回り止め突起を設ければ良い。また、本発明のレバー取付構造はフロントブレーキ用の液圧マスタシリンダ装置に適用されるものに限らず、クラッチ用の液圧マスタシリンダ装置にも適用することができる。   The lever mounting structure of the present invention is not limited to the above-described embodiments. A bifurcated lever bracket protrudes from the cylinder body, and one lever mounting portion of the lever bracket and the other lever mounting portion are connected to each other. Between them, a plate-shaped rotation base formed on the operation lever may be inserted, and a lever pin may be attached to the overlapping part of the lever mounting portion and the rotation base to attach the operation lever to the lever bracket, In this case, the anti-rotation protrusion is formed on the lever bracket from which one end portion including the peripheral groove of the lever pin protrudes. Further, both the lever bracket and the rotating base may be formed in a plate shape and overlapped. What is necessary is just to provide a rotation prevention protrusion in any one of the lever bracket from which the one end part of the said lever pin protrudes, and a rotation base. Further, the lever mounting structure of the present invention is not limited to being applied to a hydraulic master cylinder device for a front brake, but can also be applied to a hydraulic master cylinder device for a clutch.

本発明の第1形態例を示す操作レバー取付構造を示す要部説明図である。It is principal part explanatory drawing which shows the operation lever attachment structure which shows the 1st example of this invention. 図3のII-II断面図である。It is II-II sectional drawing of FIG. 同じく液圧マスタシリンダ装置の一部断面側面図である。It is a partial cross section side view of a hydraulic master cylinder device similarly. 同じくレバーピンと抜止部材の分解斜視図である。It is an exploded perspective view of a lever pin and a retaining member in the same manner. 本発明の第2形態例を示すレバーピンと抜止部材の分解斜視図である。It is a disassembled perspective view of the lever pin and securing member which shows the 2nd example of the present invention. 本発明の第3形態例を示す抜止部材をレバーピンに装着した状態の要部説明図である。It is principal part explanatory drawing of the state which mounted | wore the lever pin with the securing member which shows the 3rd example of this invention. 同じく抜止部材とレバーピンの分解斜視図である。Similarly, it is an exploded perspective view of a retaining member and a lever pin. 本発明の第4形態例を示す操作レバー取付構造を示す要部説明図である。It is principal part explanatory drawing which shows the operation lever attachment structure which shows the 4th example of this invention. 同じくレバーピントと抜止部材の分解斜視図である。FIG. 6 is an exploded perspective view of the lever focus and the retaining member. 本発明の第5形態例を示すレバーピンと抜止部材の分解斜視図である。It is a disassembled perspective view of the lever pin and retaining member which shows the 5th example of this invention. 本発明の第6形態例を示すレバーピンと抜止部材の分解斜視図である。It is a disassembled perspective view of the lever pin and securing member which shows the 6th form example of this invention. 本発明の第7形態例を示す操作レバー取付構造を示す要部説明図である。It is principal part explanatory drawing which shows the operation lever attachment structure which shows the 7th example of this invention. 同じくレバーピンと抜止部材の分解斜視図である。It is an exploded perspective view of a lever pin and a retaining member in the same manner. 同じく本発明の第8形態例を示すレバーピンと抜止部材の分解斜視図である。It is a disassembled perspective view of the lever pin and retaining member which similarly shows the 8th form example of this invention. 同じく本発明の第9形態例を示すレバーピンと抜止部材の分解斜視図である。It is a disassembled perspective view of the lever pin and retaining member which similarly shows the 9th form example of this invention.

符号の説明Explanation of symbols

1…液圧マスタシリンダ装置、2…液圧マスタシリンダ、3…操作レバー、3a…回動基部、3b…グリップ部、3c…作用腕、3d…スイッチ作動子、3e,3f…回動片、3g,3h…ピン挿通孔、4…ハンドルバー、5…シリンダボディ、5a…リザーバ、5b…車体取付ブラケット、5c…レバーブラケット、5d…ピン挿通孔、5e…スイッチ取付部、5f…車体前方側面、6…ホルダ、7…アクセルグリップ、8…ハンドルバー、9…レバーピン、9a…軸部、9b…大径頭部、9c…周溝、10…ブレーキランプスイッチ、11…ボルト、12…抜止部材、12a…基板部、12b…周溝嵌着凹部、12c…立上片、12d,12g,12j,12m,12n,12r,12t…弾発片、12e,12i,12p…回動規制片、12f,12q…摘み部、12h…押圧部、12k,12s…折返し立上片、13a,13b,13d,13e,13g,13h…回り止め突起、13c,13f,13i…ガイド面、14,15,16,17,18,19,20,21…抜止部材   DESCRIPTION OF SYMBOLS 1 ... Hydraulic master cylinder apparatus, 2 ... Hydraulic master cylinder, 3 ... Operation lever, 3a ... Turning base, 3b ... Grip part, 3c ... Working arm, 3d ... Switch actuator, 3e, 3f ... Turning piece, 3g, 3h ... pin insertion hole, 4 ... handlebar, 5 ... cylinder body, 5a ... reservoir, 5b ... vehicle body mounting bracket, 5c ... lever bracket, 5d ... pin insertion hole, 5e ... switch mounting portion, 5f ... front side of vehicle body 6 ... Holder, 7 ... Accelerator grip, 8 ... Handlebar, 9 ... Lever pin, 9a ... Shaft, 9b ... Large diameter head, 9c ... Circumferential groove, 10 ... Brake lamp switch, 11 ... Bolt, 12 ... Stopping member , 12a ... substrate portion, 12b ... circumferential groove fitting recess, 12c ... upright piece, 12d, 12g, 12j, 12m, 12n, 12r, 12t ... bullet piece, 12e, 12i, 12p ... rotation restricting piece 12f, 12q ... knob part, 12h ... pressing part, 12k, 12s ... folded up piece, 13a, 13b, 13d, 13e, 13g, 13h ... detent protrusion, 13c, 13f, 13i ... guide surface, 14, 15, 16, 17, 18, 19, 20, 21 ... retaining member

Claims (8)

液圧マスタシリンダのシリンダボディに突設したレバーブラケットのレバー取付部と、操作レバーの回動基部とを重合し、該回動基部と前記レバー取付部との重合部にピン挿通孔を貫通形成し、前記ピン挿通孔に挿入した前記レバーピンを抜止部材で抜け止めして装着することにより、前記操作レバーを前記レバーブラケットに回動可能に取り付けた液圧マスタシリンダ装置の操作レバー取付構造において、
前記レバーピンは、前記ピン挿通孔に挿入される軸部と、該軸部の一端に設けられて前記重合部の一側面に当接する大径頭部と、前記重合部の他側面から突出した前記軸部の突出基部に設けられた周溝とを備え、前記抜止部材は、前記重合部の他側面に平行な面を有する基板部と、該基板部の一側方を開口させてU字状に形成した周溝嵌着凹部と、前記基板部の他側方から該基板部に直交する方向に屈曲した立上片と、該立上片から延出して前記周溝嵌着凹部と前記周溝とが嵌着したときに前記周溝より突出方向先端側の前記軸部の周面に弾発的に当接する弾発片と、前記基板部から該基板部に平行な方向に延出した回動規制片とを備え、前記重合部の他側面に前記回動規制片の両側縁が係止して前記抜止部材を回り止めする一対の回り止め突起を突設し、前記周溝嵌着凹部と前記周溝とが嵌着した状態で、且つ、前記回動規制片が前記回り止め突起に係止した状態で、前記重合部の他側面における前記基板部の他側方に対向する位置に、前記周溝嵌着凹部が前記周溝から離脱する方向に移動したときに前記基板部の他側方が当接して前記周溝嵌着凹部が前記周溝から離脱することを防止する離脱防止突起を設けたことを特徴とする液圧マスタシリンダ装置の操作レバー取付構造。
The lever mounting part of the lever bracket protruding from the cylinder body of the hydraulic master cylinder and the rotating base part of the operating lever are overlapped, and a pin insertion hole is formed through the overlapping part of the rotating base part and the lever mounting part In the operation lever mounting structure of the hydraulic master cylinder device in which the operation lever is rotatably attached to the lever bracket by mounting the lever pin inserted into the pin insertion hole while preventing the lever pin from coming off.
The lever pin includes a shaft portion that is inserted into the pin insertion hole, a large-diameter head that is provided at one end of the shaft portion and is in contact with one side surface of the overlapping portion, and the protrusion protruding from the other side surface of the overlapping portion. A circumferential groove provided in a protruding base portion of the shaft portion, and the retaining member is U-shaped by opening a substrate portion having a surface parallel to the other side surface of the overlapping portion and one side of the substrate portion. A circumferential groove fitting recess formed on the substrate portion, a rising piece bent in a direction perpendicular to the substrate portion from the other side of the substrate portion, and the circumferential groove fitting recess and the circumference extending from the rising piece. A resilient piece that elastically contacts the circumferential surface of the shaft portion on the distal side in the protruding direction from the circumferential groove when the groove is fitted, and extends from the substrate portion in a direction parallel to the substrate portion. A pair of detents, each of which is provided with a rotation restricting piece, and both side edges of the rotation restricting piece engage with the other side surface of the overlapping portion to prevent the retaining member from rotating. In the state where the protrusion is provided, the circumferential groove fitting recess and the circumferential groove are fitted, and the rotation restricting piece is locked to the anti-rotation protrusion, When the circumferential groove fitting recess moves in a direction away from the circumferential groove at a position facing the other side of the substrate portion, the other side of the substrate portion comes into contact with the circumferential groove fitting recess. An operation lever mounting structure for a hydraulic master cylinder device, characterized in that a release prevention protrusion is provided for preventing the release from the circumferential groove.
液圧マスタシリンダのシリンダボディに突設したレバーブラケットのレバー取付部と、操作レバーの回動基部とを重合し、該回動基部と前記レバー取付部との重合部にピン挿通孔を貫通形成し、前記ピン挿通孔に挿入した前記レバーピンを抜止部材で抜け止めして装着することにより、前記操作レバーを前記レバーブラケットに回動可能に取り付けた液圧マスタシリンダ装置の操作レバー取付構造において、
前記レバーピンは、前記ピン挿通孔に挿入される軸部と、該軸部の一端に設けられて前記重合部の一側面に当接する大径頭部と、前記重合部の他側面から突出した前記軸部の突出基部に設けられた周溝とを備え、前記抜止部材は、前記重合部の他側面に平行な面を有する基板部と、該基板部の一側方を開口させてU字状に形成した周溝嵌着凹部と、前記基板部の他側方から該基板部に直交する方向に屈曲した立上片と、該立上片から延出して前記周溝嵌着凹部と前記周溝とが嵌着したときに前記周溝より突出方向先端側の前記軸部の周面に弾発的に当接する弾発片と、前記基板部から該基板部に平行な方向に延出した回動規制片とを備え、前記重合部の他側面に前記回動規制片の両側縁が係止して前記抜止部材を回り止めする一対の回り止め突起を突設し、前記周溝嵌着凹部と前記周溝とが嵌着した状態で、且つ、前記回動規制片が前記回り止め突起に係止した状態で、該一対の回り止め突起と前記回動規制片の両側縁との係止により、前記周溝嵌着凹部が前記周溝から離脱する方向への移動を防止することを特徴とする液圧マスタシリンダ装置の操作レバー取付構造。
The lever mounting part of the lever bracket protruding from the cylinder body of the hydraulic master cylinder and the rotating base part of the operating lever are overlapped, and a pin insertion hole is formed through the overlapping part of the rotating base part and the lever mounting part In the operation lever mounting structure of the hydraulic master cylinder device in which the operation lever is rotatably attached to the lever bracket by mounting the lever pin inserted into the pin insertion hole while preventing the lever pin from coming off.
The lever pin includes a shaft portion that is inserted into the pin insertion hole, a large-diameter head that is provided at one end of the shaft portion and is in contact with one side surface of the overlapping portion, and the protrusion protruding from the other side surface of the overlapping portion. A circumferential groove provided in a protruding base portion of the shaft portion, and the retaining member is U-shaped by opening a substrate portion having a surface parallel to the other side surface of the overlapping portion and one side of the substrate portion. A circumferential groove fitting recess formed on the substrate portion, a rising piece bent in a direction perpendicular to the substrate portion from the other side of the substrate portion, and the circumferential groove fitting recess and the circumference extending from the rising piece. A resilient piece that elastically contacts the circumferential surface of the shaft portion on the distal side in the protruding direction from the circumferential groove when the groove is fitted, and extends from the substrate portion in a direction parallel to the substrate portion. A pair of detents, each of which is provided with a rotation restricting piece, and both side edges of the rotation restricting piece engage with the other side surface of the overlapping portion to prevent the retaining member from rotating. A pair of anti-rotation projections in a state in which the protrusion is protruded, the circumferential groove fitting recess and the circumferential groove are fitted, and the rotation restricting piece is locked to the anti-rotation projection. An operation lever mounting structure for a hydraulic master cylinder device, wherein the circumferential groove fitting recess prevents the circumferential groove fitting recess from moving away from the circumferential groove by locking with both side edges of the rotation restricting piece.
前記回動規制片は、前記基板部の他側方から、前記周溝嵌着凹部の開口方向と直交する方向に延出することを特徴とする請求項1又は2記載の液圧マスタシリンダ装置の操作レバー取付構造。 3. The hydraulic master cylinder device according to claim 1, wherein the rotation restricting piece extends from the other side of the substrate portion in a direction orthogonal to an opening direction of the circumferential groove fitting recess. Operation lever mounting structure. 前記回動規制片は、前記基板部の前記周溝嵌着凹部の開口部先端から、前記周溝嵌着凹部の開口方向と同一方向に延出することを特徴とする請求項1又は2記載の液圧マスタシリンダ装置の操作レバー取付構造。 The said rotation control piece is extended in the same direction as the opening direction of the said circumferential groove fitting recessed part from the opening part front-end | tip of the said circumferential groove fitting recessed part of the said board | substrate part. The operation lever mounting structure of the hydraulic master cylinder device. 前記回動規制片は、前記基板部の前記周溝嵌着凹部の開口部先端から、前記周溝嵌着凹部の開口方向と直交する方向に延出することを特徴とする請求項1又は2記載の液圧マスタシリンダ装置の操作レバー取付構造。 The rotation restricting piece extends from a front end of the circumferential groove fitting recess of the substrate portion in a direction orthogonal to the opening direction of the circumferential groove fitting recess. The operation lever mounting structure of the hydraulic master cylinder device described. 前記回動規制片は、先端を折曲して形成した摘み部を備えていることを特徴とする請求項1乃至5のいずれか1項記載の液圧マスタシリンダ装置の操作レバー取付構造。 The operating lever mounting structure for a hydraulic master cylinder device according to any one of claims 1 to 5, wherein the rotation restricting piece includes a knob formed by bending the tip. 前記基板部は、前記周溝をレバーピンを挿入する方向に押圧する押圧部を備えていることを特徴とする請求項1乃至6のいずれか1項記載の液圧マスタシリンダ装置の操作レバー取付構造。 7. The operation lever mounting structure for a hydraulic master cylinder device according to claim 1, wherein the substrate portion includes a pressing portion that presses the circumferential groove in a direction in which a lever pin is inserted. . 前記抜止部材は、一枚の板状部材を、切抜き及び折曲して形成することを特徴とする請求項1乃至7のいずれか1項記載の車両用液圧マスタシリンダ装置の操作レバー取付構造。 8. The operation lever mounting structure for a hydraulic master cylinder device for a vehicle according to claim 1, wherein the retaining member is formed by cutting and bending a single plate-like member. .
JP2008325179A 2008-12-22 2008-12-22 Operation lever mounting structure of hydraulic master cylinder device Expired - Fee Related JP4713630B2 (en)

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TW98144244A TWI378880B (en) 2008-12-22 2009-12-22 Operating lever mounting device for hydraulic master cylinder system
CN 200910262201 CN101761522B (en) 2008-12-22 2009-12-22 Operation rod installation structure for hydraulic main cylinder device

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JP2016068869A (en) * 2014-09-30 2016-05-09 日信工業株式会社 Bar handle vehicular brake controlling device
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