JPH08268369A - Liquid-pressure master cylinder operation lever for bar-handle vehicle - Google Patents
Liquid-pressure master cylinder operation lever for bar-handle vehicleInfo
- Publication number
- JPH08268369A JPH08268369A JP7073825A JP7382595A JPH08268369A JP H08268369 A JPH08268369 A JP H08268369A JP 7073825 A JP7073825 A JP 7073825A JP 7382595 A JP7382595 A JP 7382595A JP H08268369 A JPH08268369 A JP H08268369A
- Authority
- JP
- Japan
- Prior art keywords
- grip
- pivot
- hole
- knocker
- master cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L3/00—Brake-actuating mechanisms; Arrangements thereof
- B62L3/02—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
- B62L3/023—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever acting on fluid pressure systems
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、車体前部に操向用のハ
ンドルバーを備える自動二・三輪車や三・四輪バギー車
等のブレーキやクラッチを液圧で作動する液圧マスタシ
リンダの操作レバーに係り、詳しくは操作レバーの入出
力比と握り代の双方の調整を効果的に行なえるようにし
たバーハンドル車両用液圧マスタシリンダの操作レバー
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulic master cylinder for hydraulically actuating brakes and clutches of motorcycles, tricycles, three- and four-wheeled buggies, etc. equipped with a steering handlebar at the front of the vehicle body. The present invention relates to an operating lever, and more particularly to an operating lever for a hydraulic master cylinder for a bar handle vehicle, which is capable of effectively adjusting both the input / output ratio of the operating lever and the grip allowance.
【０００２】[0002]
【従来の技術】自動二輪車等のブレーキやクラッチを液
圧で作動するバーハンドル車両用の液圧マスタシリンダ
には、例えば特公平４−６６７４２号公報に示される操
作レバーが用いられている。この操作レバーはノッカー
と握り操作部とよりなり、ノッカーを第１ピボットにて
レバーホルダに回動可能に軸支し、また握り操作部を第
２ピボットにてノッカーに回動可能に軸支すると共に、
液圧マスタシリンダのピストンとノッカーの作用腕との
間にプッシュロッドを架設しており、更にノッカーと握
り操作部との間に入出力比調整機構を設けている。2. Description of the Related Art As a hydraulic master cylinder for a bar-handle vehicle in which a brake or a clutch of a motorcycle or the like is hydraulically operated, for example, an operation lever disclosed in Japanese Patent Publication No. 4-66742 is used. This operating lever is composed of a knocker and a grip operating portion, and the knocker pivotally supports the lever holder at the first pivot so as to be rotatable, and the grip operating portion pivotally pivots at the knocker at the second pivot. With
A push rod is installed between the piston of the hydraulic master cylinder and the working arm of the knocker, and an input / output ratio adjusting mechanism is provided between the knocker and the grip operation unit.
【０００３】上述の入出力比調整機構は、握り操作部に
長孔を形成して該長孔にアジャスト駒を回動可能に装着
し、該アジャスト駒の円筒胴部に深さの異なる複数のピ
ン孔を形成して、該ピン孔に、先端を液圧マスタシリン
ダのシリンダ孔に内挿されたピストンに当接させたプッ
シュロッドの後端を選択的に係合させ、前記長孔に弾持
されるアジャスト駒の保持部を、ピストンの軸線と異な
る方向に第１ピボットからの距離を異ならせて複数個形
成することにより、操作レバーの回動支点となる第１ピ
ボットとプッシュロッド押動点との長さを変更して、操
作レバーの入出力比を変更できるようにしている。In the above-mentioned input / output ratio adjusting mechanism, a long hole is formed in the grip operation portion, an adjusting piece is rotatably mounted in the long hole, and a plurality of pins having different depths are attached to the cylindrical body portion of the adjusting piece. A hole is formed, and the rear end of the push rod whose tip is brought into contact with the piston inserted in the cylinder hole of the hydraulic master cylinder is selectively engaged with the pin hole, and is elastically held in the long hole. By forming a plurality of adjusting piece holding portions at different distances from the first pivot in a direction different from the axis of the piston, a first pivot serving as a pivot fulcrum of the operating lever and a push rod pushing point are formed. The input / output ratio of the operating lever can be changed by changing the length of.
【０００４】[0004]
【発明が解決しようとする課題】このような入出力比調
整機構では、第１ピボットからプッシュロッド押動点ま
での出力長さが変更されるのに対して、第１ピボットか
ら握り操作部の握り部のの力点までの入力長さが常時一
定であるため、操作レバーにさほど大きな入出力比を設
定することはできなかった。また入出力比の変更は、握
り操作部を第２ピボットを支点に回動して行なうため、
握り操作部の握り部とハンドルバーのグリップとの間
隔、即ち握り代も同時に変更されてしまうという欠点が
ある。In such an input / output ratio adjusting mechanism, the output length from the first pivot to the push rod pushing point is changed, whereas the output length from the first pivot to the grip operating portion is changed. Since the input length up to the power point of the grip is always constant, it was not possible to set a very large input / output ratio on the operating lever. Further, since the input / output ratio is changed by rotating the grip operating portion around the second pivot as a fulcrum,
There is a drawback in that the distance between the grip of the grip operation unit and the grip of the handlebar, that is, the grip allowance is also changed at the same time.
【０００５】そこで本発明は、入出力比と握り代とを限
られた調整範囲で大きく設定することのできるバーハン
ドル車両用液圧マスタシリンダの操作レバーを提供する
ことを目的としている。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an operating lever for a hydraulic master cylinder for a bar handle vehicle in which the input / output ratio and the grip allowance can be set large within a limited adjustment range.
【０００６】[0006]
【課題を解決するための手段】上述の目的に従い、本発
明は、液圧マスタシリンダのレバーホルダに第１ピボッ
トにて回動可能に軸支されるノッカーと、該ノッカーに
第２ピボットにて回動可能に軸支される握り操作部と、
前記液圧マスタシリンダのシリンダ孔に内挿されたピス
トンに先端を当接させ、後端を前記ノッカーの作用腕に
回動可能に軸支されるプッシュロッドと、前記握り操作
部を前記第２ピボットを支点に回動して、握り操作部の
握り部とハンドルバー間の握り代を変更する握り代調整
機構とを備えたバーハンドル車両用液圧マスタシリンダ
の操作レバーにおいて、前記ノッカーに前記第１ピボッ
トを囲うガイド孔を形成して、該ガイド孔に対向する一
対の被ガイド面を形成して、該ガイド孔に、被ガイド面
と摺接する２つのガイド面と、該ガイド面と平行に貫通
するめねじ孔とを持った駒部材を収容すると共に、該駒
部材を前記第１ピボットに回動可能に軸支し、前記ノッ
カーにアジャストボルトを挿通し、該アジャストボルト
の軸部を前記ガイド孔を通して前記めねじ孔に螺合した
入出力比調整機構を設けたことを特徴としている。According to the above object, the present invention provides a knocker pivotally supported by a first pivot on a lever holder of a hydraulic master cylinder and a second pivot on the knocker. A grip operation unit pivotally supported,
The piston inserted in the cylinder hole of the hydraulic master cylinder has its tip abutted and its rear end rotatably supported by the working arm of the knocker, and the grip operation part is the second. In the operation lever of the bar handle vehicle hydraulic master cylinder, which is equipped with a grip allowance adjusting mechanism for rotating about a pivot as a fulcrum and changing a grip allowance between the grip part of the grip operation part and the handlebar, the knocker is provided with A guide hole that surrounds the first pivot is formed, a pair of guided surfaces that face the guide hole are formed, and two guide surfaces that are in sliding contact with the guided surface and are parallel to the guide surface are formed in the guide hole. A piece member having a female screw hole penetrating therethrough, the piece member is rotatably supported by the first pivot, the adjustment bolt is inserted into the knocker, and the shaft portion of the adjustment bolt is Guy It is characterized in that a output ratio adjustment mechanism screwed into the female screw hole through the pores.
【０００７】握り代調整機構としては、例えば実公平３
−５７５８８号公報に示される如き公知の構成を用いれ
ばよい。この握り代調整機構は、円筒胴部の外周面に深
さの異なるピン孔を複数形成したアジャスト駒を握り操
作部に回動可能に設け、該ピン孔に、先端を液圧マスタ
シリンダのピストンに当接させたプッシュロッドの後端
を選択的に係合させることにより、握り操作部の握り部
とハンドルバーのグリップとの間の握り代を調整できる
ようにしている。The grip allowance adjusting mechanism is, for example,
A publicly known configuration as shown in Japanese Patent Publication No. 57588 may be used. This grip allowance adjusting mechanism is provided with an adjusting piece, which has a plurality of pin holes having different depths formed on the outer peripheral surface of a cylindrical body, rotatably provided in a grip operating portion, and a tip of the adjusting piece is provided in a piston of a hydraulic master cylinder. By selectively engaging the rear end of the push rod brought into contact with the grip, the grip allowance between the grip of the grip operating portion and the grip of the handlebar can be adjusted.
【０００８】[0008]
【作用】上述の入出力比調整機構は、アジャストボルト
の螺回によって駒部材が移動するが、駒部材は操作レバ
ーの回動支点となる第１ピボットに軸支されているた
め、駒部材に対してノッカーが車体前後方向へ移動する
こととなる。これにより、入出力比の入力長さと出力長
さを構成する第１ピボットと握り操作部の力点とプッシ
ュロッド押動部の三点のうち、第１ピボットが固定で、
力点となる握り操作部の握り部とプッシュロッドの後端
を回動可能に支持するプッシュロッド押動部の二点が第
１ピボット回りに移動する。この移動により、第１ピボ
ットから握り操作部の握り部までの入力長さと、同じく
第１ピボットからプッシュロッド押動部までの出力長さ
が反比例で変更され、レバーが大きな割合で変更される
ようになる。In the above-mentioned input / output ratio adjusting mechanism, the piece member is moved by the screwing of the adjusting bolt, but the piece member is pivotally supported by the first pivot which is the pivotal fulcrum of the operating lever, so that the piece member is supported. On the other hand, the knocker moves in the front-rear direction of the vehicle body. As a result, of the three points of the first pivot, which constitutes the input length and the output length of the input / output ratio, the force point of the grip operation section and the push rod pushing section, the first pivot is fixed,
Two points, that is, the grip portion of the grip operation portion, which serves as a force point, and the push rod pushing portion that rotatably supports the rear end of the push rod move around the first pivot. Due to this movement, the input length from the first pivot to the grip of the grip operation section and the output length from the first pivot to the push rod pushing section are changed in inverse proportion, and the lever is changed at a large rate. become.
【０００９】また、入出力比調整機構に握り代調整機構
との併用により、第２ピボットを支点に握り操作部の握
り部を大きな範囲で回動させることができるので、握り
操作部の握り部とグリップとの間の握り代を大きな範囲
で設定することができるようになる。Further, by using the input / output ratio adjusting mechanism together with the grip allowance adjusting mechanism, the grip portion of the grip operating portion can be rotated in a large range around the second pivot, so that the grip portion of the grip operating portion can be rotated. It becomes possible to set the grip allowance between the grip and the grip in a large range.
【００１０】[0010]
【実施例】以下、本発明をフロントブレーキに適用した
一実施例を、図面に基づいて説明する。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１には、右
端のアクセルグリップ２の内側位置に、フロントブレー
キ用の液圧マスタシリンダ装置３が取付けられている。
この液圧マスタシリンダ装置３は、ハンドルバー１をシ
リンダボディ４の車体取付け腕４ａとブラケット５とで
包持して、ハンドルバー１の車体前部側にボルト止めさ
れる液圧マスタシリンダ６と、シリンダボディ４から突
出する上下一対のレバーホルダ４ｂ，４ｃに回動可能に
軸着されるブレーキレバー７とからなっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a front brake will be described below with reference to the drawings. A hydraulic pressure master cylinder device 3 for a front brake is attached to a handlebar 1 that steers the front wheels in the front part of the vehicle body of a bar-handle vehicle, inside the accelerator grip 2 at the right end.
In this hydraulic master cylinder device 3, a handlebar 1 is wrapped by a vehicle body mounting arm 4a of a cylinder body 4 and a bracket 5, and a hydraulic master cylinder 6 is bolted to the front side of the handlebar 1 in the vehicle body. , A brake lever 7 pivotally mounted on a pair of upper and lower lever holders 4b and 4c protruding from the cylinder body 4.
【００１１】シリンダボディ４には、有底のシリンダ孔
８がハンドルバー１に沿って形成され、該シリンダ孔８
の開口側にピストン９が内挿されており、ピストン９
は、シリンダ孔底部の液圧室に縮設されたリターンスプ
リング（いずれも図示しない）にて常時開口部方向へ弾
発され、その後退限をシリンダ孔８の開口端に係着した
サークリップ１０にて支承されている。A bottomed cylinder hole 8 is formed in the cylinder body 4 along the handlebar 1.
The piston 9 is inserted in the opening side of the
Is always elastically urged toward the opening by a return spring (not shown) that is compressed in the hydraulic chamber at the bottom of the cylinder hole, and its retract limit is attached to the opening end of the cylinder hole 8. Supported by.
【００１２】ブレーキレバー７は、レバーホルダ４ｂ，
４ｃに第１ピボット１１にて回動可能に軸支される板状
のノッカー１２と、該ノッカー１２に第２ピボット１３
にて回動可能に軸支される棒状の握り操作部１４とから
なる二分割型で、前記ピストン９とノッカー１２の作用
腕１２ａとの間にはプッシュロッド１５が架設されてい
る。The brake lever 7 includes a lever holder 4b,
4c, a plate-like knocker 12 pivotally supported by a first pivot 11 and a second pivot 13 on the knocker 12.
It is a two-part type consisting of a rod-shaped gripping operation portion 14 rotatably supported by a push rod 15, and a push rod 15 is installed between the piston 9 and the working arm 12a of the knocker 12.
【００１３】ノッカー１２には、第１ピボット１１との
間に入出力比調整機構１６が設けられ、該ノッカー１２
からシリンダ孔８の後方へ突出する作動側の作用腕１２
ａに、上下方向へ貫通する軸孔１２ｂと、該軸孔１２ｂ
から作用腕１２ａのシリンダ孔側面へテーパ状に拡がる
挿通孔１２ｃとが形成されると共に、ノッカー１２の反
作動側へ突出するストッパ片１２ｄとシリンダボディ４
との間に、リターンスプリング１７が車体幅方向に向け
て縮設されている。The knocker 12 is provided with an input / output ratio adjusting mechanism 16 between the knocker 12 and the first pivot 11.
Working arm 12 protruding from the rear of the cylinder hole 8
a, a shaft hole 12b penetrating in the vertical direction, and the shaft hole 12b.
A through hole 12c that extends in a tapered shape from the side of the working arm 12a to the side of the cylinder hole of the working arm 12a, and the stopper piece 12d and the cylinder body 4 that protrude toward the counter-actuating side of the knocker 12 are formed.
The return spring 17 is contracted in the width direction of the vehicle body.
【００１４】握り操作部１４には、第２ピボット１３に
軸支される回動基部１４ａからアクセルグリップ２の前
方へ突出する握り部１４ｂが設けられており、回動基部
１４ａの作動側にはノッカー１２の作用腕１２ａとの間
に握り代調整機構１８が設けられ、また回動基部１４ａ
の反作動側へ突出するストッパ片１４ｃとノッカー１２
との間にリターンスプリング１９が車体前後方向へ向け
て縮設されている。The grip operating portion 14 is provided with a grip portion 14b protruding forward of the accelerator grip 2 from a rotating base portion 14a pivotally supported by the second pivot 13, and an operating side of the rotating base portion 14a is provided. A grip allowance adjusting mechanism 18 is provided between the knocker 12 and the working arm 12a, and the rotating base 14a is provided.
Stopper piece 14c and knocker 12 projecting to the opposite side of the
A return spring 19 is contracted in the front-rear direction of the vehicle body.
【００１５】またプッシュロッド１５は、後端を作用腕
１２ａの挿通孔１２ｃから差し込んで、軸孔１２ｂに装
着される円筒状の支軸２０へ圧入され、先端をピストン
９の球面状凹部９ａに係止して、支軸２０を支点に回動
可能に支持されており、該支軸２０が本発明でいうプッ
シュロッド押動点となる。ノッカー１２とシリンダボデ
ィ４との間のリターンスプリング１７は、前記液圧室内
のリターンスプリングよりも小さいセット荷重が設定さ
れていて、第１ピボット１１を支点にノッカー１２と握
り操作部１４とを作動方向（図１の時計方向）へ回動
し、プッシュロッド１５の先端が、後退限をサークリッ
プ１０との当接にて規制されるピストン９の球面状凹部
９ａとの空隙を埋めるべく付勢している。The push rod 15 has its rear end inserted through the insertion hole 12c of the working arm 12a, is press-fitted into the cylindrical support shaft 20 mounted in the shaft hole 12b, and has its front end in the spherical recess 9a of the piston 9. It is locked and rotatably supported by the support shaft 20 as a fulcrum, and the support shaft 20 serves as a push rod pushing point in the present invention. The return spring 17 between the knocker 12 and the cylinder body 4 has a set load smaller than that of the return spring in the hydraulic chamber, and operates the knocker 12 and the grip operating portion 14 with the first pivot 11 as a fulcrum. Direction (clockwise in FIG. 1), the tip of the push rod 15 is urged so as to fill the space between the piston 9 and the spherical recess 9a of the piston 9, which is restricted by the contact with the circlip 10. are doing.
【００１６】前記入出力比調整機構１６は、ノッカー１
２に第１ピボット１１を囲って形成されるガイド孔２１
と、該ガイド孔２１の内部で第１ピボット１１に回動可
能に軸支される駒部材２２と、ガイド孔２１を通して駒
部材２２に螺着されるアジャストボルト２３とからなっ
ている。上記ガイド孔２１は車体前後方向に長い矩形孔
で形成され、ハンドルバー１の交差方向へ相対向して延
びる２つの面を被ガイド面２１ａ，２１ａとしている。
駒部材２２は、ガイド孔２１の被ガイド面２１ａ，２１
ａと摺接する２つのガイド面２２ａ，２２ａを有する矩
形板によって形成されており、一側部寄りの軸孔２２ｂ
に第１ピボット１１が挿通されると共に、他側部寄りに
めねじ孔２２ｃがガイド面２２ａ，２２ａと平行に貫通
形成されている。またアジャストボルト２３は、軸部２
３ａをノッカー１２のボルト挿通孔２４に車体前部側よ
りロックナット２５を介して差し込み、ガイド孔２１を
通して駒部材２２のめねじ孔２２ｃに螺着すると共に、
めねじ孔２２ｃから突出させた軸部２３ａの先端をガイ
ド孔２１の車体側面へ掛け渡して装着される。The input / output ratio adjusting mechanism 16 includes the knocker 1
2 is a guide hole 21 formed around the first pivot 11.
And a piece member 22 pivotally supported by the first pivot 11 inside the guide hole 21, and an adjusting bolt 23 screwed to the piece member 22 through the guide hole 21. The guide hole 21 is formed as a rectangular hole that is long in the front-rear direction of the vehicle body, and two surfaces extending opposite to each other in the intersecting direction of the handlebar 1 are guided surfaces 21a and 21a.
The piece member 22 includes the guided surfaces 21 a, 21 of the guide hole 21.
It is formed by a rectangular plate having two guide surfaces 22a, 22a that are in sliding contact with a, and a shaft hole 22b near one side.
The first pivot 11 is inserted therethrough, and a female screw hole 22c is formed so as to penetrate toward the other side in parallel with the guide surfaces 22a, 22a. In addition, the adjustment bolt 23 is
3a is inserted into the bolt insertion hole 24 of the knocker 12 from the front side of the vehicle body through the lock nut 25, is screwed into the female screw hole 22c of the piece member 22 through the guide hole 21, and
The tip end of the shaft portion 23a protruding from the female screw hole 22c is hung over the side surface of the vehicle body of the guide hole 21 to be mounted.
【００１７】このように構成される入出力比調整機構１
６は、ノッカー１２の車体前部側面へ当接させたロック
ナット２５を緩めて、アジャストボルト２３を回転する
ことにより、ガイド孔２１の被ガイド面２１ａ，２１ａ
が駒部材２２のガイド面２２ａ，２２ａを摺接して、ノ
ッカー１２と握り操作部１４とが一体となって、第１ピ
ボット１１を支点に車体前方または後方へ移動し、更に
ノッカー１２の移動に連れて、プッシュロッド１５がピ
ストン側の先端を支点に揺動する。The input / output ratio adjusting mechanism 1 thus configured
6 loosens the lock nut 25 brought into contact with the vehicle body front side surface of the knocker 12 and rotates the adjusting bolt 23, so that the guided surfaces 21 a, 21 a of the guide hole 21.
Makes sliding contact with the guide surfaces 22a, 22a of the piece member 22, and the knocker 12 and the grip operating portion 14 are integrated with each other to move forward or backward of the vehicle body about the first pivot 11 as a fulcrum, and further to move the knocker 12. Along with this, the push rod 15 swings around the piston-side tip as a fulcrum.
【００１８】また前記握り代調整機構１８は、ノッカー
１２の作用腕１２ａに圧入される係合ピン２６と、握り
操作部１４の回動基部１４ａの作動側で上下方向に貫通
する軸孔１４ｄ及び該軸孔１４ｄに連続して回動基部１
４ａのノッカー側へ開口するピン孔１４ｅと、前記軸孔
１４ｄに装着される調整ダイヤル２７とからなってい
る。調整ダイヤル２７は、軸孔１４ｄに回転可能に装着
される円筒部２７ａと、該円筒部２７ａの上部に連続す
る大径のダイヤル２７ｂとからなっており、円筒部２７
ａの外周面には深さの異なる４個のピン孔２７ｃが等間
隔で凹設され、またダイヤル２７ｂの上面には、ピン孔
２７ｃの形成位置を示す数字２７ｄがピン孔２７ｃと対
応して刻設されている。Further, the grip allowance adjusting mechanism 18 includes an engaging pin 26 press-fitted into the working arm 12a of the knocker 12, a shaft hole 14d vertically penetrating on the operating side of the rotating base portion 14a of the grip operating portion 14, and The rotation base 1 is continuous with the shaft hole 14d.
4a, a pin hole 14e opening to the knocker side, and an adjusting dial 27 mounted in the shaft hole 14d. The adjustment dial 27 includes a cylindrical portion 27a that is rotatably mounted in the shaft hole 14d, and a large-diameter dial 27b that is continuous with the upper portion of the cylindrical portion 27a.
Four pin holes 27c having different depths are provided at equal intervals on the outer peripheral surface of a, and a numeral 27d indicating the formation position of the pin holes 27c is formed on the upper surface of the dial 27b in correspondence with the pin holes 27c. It is carved.
【００１９】ノッカー１２の作用腕１２ａに突設された
係合ピン２６は、握り操作部１４の回動基部１４ａに開
口するピン孔１４ｅへ差し込まれ、調整ダイヤル２７の
ピン孔２７ｃのいずれかと選択的に係合し、調整ダイヤ
ル２７の回転によって他のピン孔２７ｃと係合すること
により、第２ピボット１３を支点に握り操作部１４を回
動させるようになっている。握り操作部１４のストッパ
片１４ｃとノッカー１２間のリターンスプリング１９
は、握り操作部１４を作動方向（図１の時計方向）へ弾
発して、係合ピン２６とピン孔１４ｅとが常時係合する
ようにしている。The engaging pin 26 projecting from the working arm 12a of the knocker 12 is inserted into the pin hole 14e opened in the rotation base portion 14a of the grip operating portion 14 and selected from any one of the pin holes 27c of the adjusting dial 27. By engaging with each other and engaging with the other pin hole 27c by the rotation of the adjusting dial 27, the grip operating portion 14 is rotated around the second pivot 13 as a fulcrum. A return spring 19 between the stopper piece 14c of the grip operation portion 14 and the knocker 12
Makes the gripping operation portion 14 elastically spring in the operating direction (clockwise direction in FIG. 1) so that the engagement pin 26 and the pin hole 14e are always engaged.
【００２０】次に本実施例の作動を説明する。図１で
は、駒部材２２がガイド孔２１の略中央に位置してお
り、ブレーキレバー７の回動支点となる第１ピボット１
１から握り操作部１４の握り部１４ｂの力点１４ｆまで
の入力長さがＬ１となり、同じく第１ピボット１１から
プッシュロッド１５の押動点となる支軸２０まので長さ
がＬ２となっている。Next, the operation of this embodiment will be described. In FIG. 1, the piece member 22 is located substantially in the center of the guide hole 21, and the first pivot 1 that serves as a rotation fulcrum of the brake lever 7 is shown.
The input length from 1 to the force point 14f of the grip portion 14b of the grip operation portion 14 is L1, and the length from the first pivot 11 to the support shaft 20 which is the pushing point of the push rod 15 is L2. .
【００２１】また、図１からノッカー１２と握り操作部
１４と支軸２０とが第１ピボット１１を支点に車体前方
へ一体に移動した図４では、第１ピボット１１が固定で
あるのに対し、握り操作部１４の力点１４ｆとプッシュ
ロッド押動点である支軸２０が車体前方へ位置を移し
て、第１ピボット１１から握り操作部１４の力点１４ｆ
までの入力長さがＬ１が図１よりも長く、同じく第１ピ
ボット１１から支軸２０までの出力長さＬ２が図１より
も短く変更される。逆に、図１からノッカー１２と握り
操作部１４と支軸２０とが第１ピボット１１を支点に車
体後方へ一体に移動した図５では、固定の第１ピボット
１１に対して、握り操作部１４の力点１４ｆと支軸２０
が車体後方へ位置を移し、第１ピボット１１から握り操
作部１４の握り部１４ｂの力点１４ｆまでの入力長さＬ
１が図１よりも短く、同じく第１ピボット１１から支軸
２０までの出力長さＬ２が図１よりも長く変更される。Further, in FIG. 4 in which the knocker 12, the grip operating portion 14 and the support shaft 20 are integrally moved to the front of the vehicle body about the first pivot 11 as a fulcrum from FIG. 1, the first pivot 11 is fixed. The force point 14f of the grip operating portion 14 and the support shaft 20 which is the push rod pushing point move to the front of the vehicle body, and the force point 14f of the grip operating portion 14 moves from the first pivot 11.
1 is longer than that in FIG. 1, and similarly, the output length L2 from the first pivot 11 to the support shaft 20 is shorter than that in FIG. On the contrary, in FIG. 5, in which the knocker 12, the grip operation unit 14, and the support shaft 20 are integrally moved rearward of the vehicle body about the first pivot 11 as a fulcrum, the grip operation unit is fixed with respect to the fixed first pivot 11. 14 power point 14f and spindle 20
Moves to the rear of the vehicle body, and the input length L from the first pivot 11 to the power point 14f of the grip portion 14b of the grip operation portion 14
1 is shorter than that in FIG. 1, and similarly, the output length L2 from the first pivot 11 to the support shaft 20 is changed to be longer than that in FIG.
【００２２】図６は、入出力比調整機構１６と握り代調
整機構１８との作動を説明する概略図で、入出力比調整
機構１６によって図４及び図５を車体前後方向へ移動す
る第２ピボット１３と支軸２０は、それぞれ図６におい
て２点の範囲を移動する。また握り代調整機構１８によ
る握り代調整をしない場合には、握り操作部１４の力点
１４ｆは、２本の一点鎖線で示す握り部１４ｂ上の二点
Ａ，Ｂの範囲に位置するのみであるが、入出力比調整機
構１６に握り代調整機構１８を併用した場合には、握り
部１４ｂが第２ピボット１３を支点に回動して、点Ａが
２本の二点鎖線で示す握り部１４ｂ上のＡ１〜Ａ２の角
度を、また点Ｂが２本の実線で示す握り部１４ｂ上のＢ
１〜Ｂ２の角度をそれぞれ回動できるようになり、更
に、力点１４ｆが点Ａ１〜Ａ２と点Ｂ１〜Ｂ２の角度を
移動するのに伴って、第１ピボット１１から力点１４ｆ
までの入力長さＬ１（図６では図示せず）も変更するこ
とが可能となる。FIG. 6 is a schematic view for explaining the operation of the input / output ratio adjusting mechanism 16 and the grip allowance adjusting mechanism 18. The second input / output ratio adjusting mechanism 16 moves FIGS. 4 and 5 in the longitudinal direction of the vehicle body. The pivot 13 and the support shaft 20 move within a range of two points in FIG. When the grip allowance adjustment mechanism 18 does not adjust the grip allowance, the force point 14f of the grip operating portion 14 is only located within the range of two points A and B on the grip portion 14b indicated by the two-dot chain line. However, when the grip allowance adjusting mechanism 18 is used together with the input / output ratio adjusting mechanism 16, the grip portion 14b rotates about the second pivot 13 as a fulcrum, and the point A is a grip portion indicated by two double-dotted lines. 14b shows the angles A1 and A2 on 14b, and point B shows two solid lines on B on the grip 14b.
1 to B2 can be rotated respectively, and further, as the force point 14f moves the angle between the points A1 to A2 and the points B1 to B2, the force point 14f from the first pivot 11 can be changed.
It is also possible to change the input length L1 up to (not shown in FIG. 6).
【００２３】本実施例は、入出力比調整機構１６によっ
て、入出力比となる入力長さＬ１と出力長さＬ２とが反
比例で変更されるので、配置スペース等の関係から入出
力比の調整範囲となるガイド孔２１の被ガイド面２１
ａ，２１ａの長さが制約される場合にも、ブレーキレバ
ー７に従来よりも大きな入出力比を設定することが可能
となり、ライダーの体格や好みに合わせて幅広く対応す
ることができるようになる。また握り代調整機構１８に
よる握り代調整は勿論のこと、入出力比調整機構１６に
握り代調整機構１８を併用することにより、第２ピボッ
ト１３を支点とする握り操作部１４の回動範囲を拡げ
て、握り部１４ｂとアクセルグリップ２との間の握り代
を大きな範囲で設定することができ、入出力比と同様
に、握り代もライダーの好みや体格に幅広く対応するこ
とが可能となる。In this embodiment, the input / output ratio adjusting mechanism 16 changes the input / output ratio, ie, the input length L1 and the output length L2, in inverse proportion to each other. Guided surface 21 of guide hole 21 that is within range
Even when the lengths of a and 21a are restricted, it is possible to set a larger input / output ratio to the brake lever 7 than in the past, and it is possible to widely cope with the rider's physique and taste. . In addition to the adjustment of the grip allowance by the grip allowance adjusting mechanism 18, by using the grip allowance adjusting mechanism 18 together with the input / output ratio adjusting mechanism 16, the turning range of the grip operating portion 14 with the second pivot 13 as a fulcrum can be set. The grip allowance between the grip portion 14b and the accelerator grip 2 can be set in a wide range by widening, and the grip allowance can widely correspond to the rider's taste and physique as well as the input / output ratio. .
【００２４】尚、本発明の操作レバーは、クラッチレバ
ーとしての使用も可能である。またガイド孔の被ガイド
面は、必ずしもハンドルバーと交差方向に設ける必要は
ない。アジャストボルトの軸部は、少なくとも駒部材の
めねじ孔に螺着すればよく、先端はガイド孔に掛け渡さ
なくとも差支えない。The operating lever of the present invention can also be used as a clutch lever. Further, the guided surface of the guide hole does not necessarily have to be provided in the direction intersecting with the handle bar. The shaft portion of the adjusting bolt may be screwed into at least the female screw hole of the piece member, and the tip does not need to be hung over the guide hole.
【００２５】[0025]
【発明の効果】本発明は、液圧マスタシリンダのレバー
ホルダに第１ピボットにて回動可能に軸支されるノッカ
ーと、該ノッカーに第２ピボットにて回動可能に軸支さ
れる握り操作部と、前記液圧マスタシリンダのシリンダ
孔に内挿されたピストンに先端を当接させ、後端を前記
ノッカーの作用腕に回動可能に軸支されるプッシュロッ
ドと、前記握り操作部を前記第２ピボットを支点に回動
して、握り操作部の握り部とハンドルバーのクリップと
の間の握り代を変更する握り代調整機構とを備えるバー
ハンドル車両用液圧マスタシリンダの操作レバーであっ
て、前記ノッカーに前記第１ピボットを囲うガイド孔を
形成して、該ガイド孔に対向する一対の被ガイド面を形
成して、該ガイド孔に、被ガイド面と摺接する２つのガ
イド面と、該ガイド面と平行に貫通するめねじ孔とを持
った駒部材を収容すると共に、該駒部材を前記第１ピボ
ットに回動可能に軸支し、前記ノッカーにアジャストボ
ルトを挿通し、該アジャストボルトの軸部を前記ガイド
孔を通して前記めねじ孔に螺合した入出力比調整機構を
設けたことにより、入出力比調整機構によって、入出力
比となる入力長さと出力長さとが反比例で変更されるの
で、配置スペース等の関係から、入出力比の調整範囲と
なるガイド孔の被ガイド面の長さが制約される場合に
も、操作レバーに従来よりも大きな入出力比を設定し
て、ライダーの好みや体格に幅広く対応できるようにな
る。また握り代調整機構の単独使用による握り代調整は
勿論のこと、入出力比調整機構に握り代調整機構を併用
することにより、第２ピボットを支点とする握り操作部
の回動範囲を拡げて握り代を大きな範囲で設定できるよ
うになり、入出力比と同様に握り代もライダーの好みや
体格に合わせて幅広く調整することが可能となる。According to the present invention, a knocker pivotally supported on a lever holder of a hydraulic master cylinder by a first pivot, and a grip pivotally supported on the knocker by a second pivot. An operating portion, a push rod whose tip is brought into contact with a piston inserted in a cylinder hole of the hydraulic master cylinder, and a rear end of which is pivotally supported by an operating arm of the knocker, and the grip operating portion. Operation of a hydraulic master cylinder for a bar handle vehicle provided with a grip allowance adjusting mechanism for rotating the second pivot as a fulcrum to change a grip allowance between the grip of the grip operating part and the clip of the handlebar. A lever, wherein a guide hole that surrounds the first pivot is formed in the knocker, a pair of guided surfaces that face the guide hole are formed, and two guide surfaces that slidably contact the guided surface are formed in the guide hole. Guide surface and the guy A piece member having a female screw hole penetrating in parallel with the surface is housed, the piece member is rotatably supported by the first pivot, and an adjusting bolt is inserted into the knocker, and an axis of the adjusting bolt is inserted. By providing the input / output ratio adjusting mechanism in which the portion is screwed into the female screw hole through the guide hole, the input length and the output length, which are the input / output ratio, are inversely changed by the input / output ratio adjusting mechanism. Even if the length of the guided surface of the guide hole, which is the adjustment range of the input / output ratio, is restricted due to the arrangement space, etc., set a larger input / output ratio on the operating lever and set the rider You will be able to support a wide range of tastes and physiques. In addition to adjusting the grip allowance by using the grip allowance adjusting mechanism alone, by using the grip allowance adjusting mechanism together with the input / output ratio adjusting mechanism, the range of rotation of the grip operating section with the second pivot as the fulcrum can be expanded. The grip allowance can be set in a large range, and the grip allowance as well as the input / output ratio can be widely adjusted according to the rider's preference and physique.
【図１】本発明の一実施例を示す一部断面平面図FIG. 1 is a partial sectional plan view showing an embodiment of the present invention.
【図２】図１のII−II断面図FIG. 2 is a sectional view taken along line II-II of FIG.
【図３】図１のIII −III 断面図FIG. 3 is a sectional view taken along the line III-III in FIG.
【図４】図１のブレーキレバーを入出力比調整機構によ
って作動した状態を示す一部断面平面図4 is a partial cross-sectional plan view showing a state where the brake lever of FIG. 1 is operated by an input / output ratio adjusting mechanism.
【図５】図１のブレーキレバーを入出力比調整機構によ
って作動した状態を示す一部断面平面図5 is a partial sectional plan view showing a state where the brake lever of FIG. 1 is operated by an input / output ratio adjusting mechanism.
【図６】入出力比調整機構と握り代調整機構との作動を
説明する概略図FIG. 6 is a schematic diagram illustrating the operation of an input / output ratio adjusting mechanism and a grip allowance adjusting mechanism.
１…ハンドルバー ２…アクセルグリップ ３…液圧マスタシリンダ装置 ４…シリンダボディ ４ｂ，４ｃ…レバーホルダ ６…液圧マスタシリンダ ７…ブレーキレバー ８…シリンダ孔 ９…ピストン ９ａ…球面状凹部 １０…サークリップ １１…第１ピボット １２…ノッカー １２ａ…ノッカー１２の作用腕 １２ｂ…軸孔 １２ｃ…挿通孔 １２ｄ…ストッパ片 １３…第２ピボット １４…握り操作部 １４ｄ…握り操作部１４の回動基部１４ａの軸孔 １４ｅ…軸孔１４ｄに連続するピン孔 １５…プッシュロッド １６…入出力比調整機構 １７，１９…リターンスプリング １８…握り代調整機構 ２０…支軸 ２１…ガイド孔 ２１ａ…ガイド孔２１の被ガイド面 ２２…駒部材 ２２ａ…ガイド面 ２２ｂ…軸孔 ２２ｃ…めねじ孔 ２３…アジャストボルト ２３ａ…アジャストボルト２３の軸部 ２５…ロックナット ２６…係合ピン ２７…調整ダイヤル ２７ａ…調整ダイヤル２７の円筒部 ２７ｂ…調整ダイヤル２７のダイヤル ２７ｃ…円筒部２７ａの外周面に形成されたピン孔 Ｌ１…第１ピボット１１から握り操作部１４の握り部１
４ｂの力点１４ｆまでの入力長さ Ｌ２…第１ピボット１１から支軸２０までの出力長さ1 ... Handlebar 2 ... Accelerator grip 3 ... Hydraulic master cylinder device 4 ... Cylinder body 4b, 4c ... Lever holder 6 ... Hydraulic master cylinder 7 ... Brake lever 8 ... Cylinder hole 9 ... Piston 9a ... Spherical recess 10 ... Sir Clip 11 ... 1st pivot 12 ... Knocker 12a ... Working arm 12b of knocker 12 ... Shaft hole 12c ... Insertion hole 12d ... Stopper piece 13 ... Second pivot 14 ... Grip operation part 14d ... Grip operation part 14 of rotation base part 14a. Shaft hole 14e ... Pin hole continuous with shaft hole 14d 15 ... Push rod 16 ... Input / output ratio adjusting mechanism 17, 19 ... Return spring 18 ... Grip margin adjusting mechanism 20 ... Spindle 21 ... Guide hole 21a ... Cover of guide hole 21 Guide surface 22 ... Piece member 22a ... Guide surface 22b ... Shaft hole 22c ... Female screw hole 23 ... Adjust bolt 23a ... Shaft portion of the adjustment bolt 23 ... Lock nut 26 ... Engagement pin 27 ... Adjustment dial 27a ... Cylindrical portion of the adjustment dial 27 27b ... Dial of the adjustment dial 27 27c ... Pin hole formed on the outer peripheral surface of the cylindrical portion 27a L1 ... from the first pivot 11 to the grip portion 1 of the grip operation portion 14
Input length up to the force point 14f of 4b L2 ... Output length from the first pivot 11 to the support shaft 20
Claims (1)
１ピボットにて回動可能に軸支されるノッカーと、該ノ
ッカーに第２ピボットにて回動可能に軸支される握り操
作部と、前記液圧マスタシリンダのシリンダ孔に内挿さ
れたピストンに先端を当接させ、後端を前記ノッカーの
作用腕に回動可能に軸支されるプッシュロッドと、前記
握り操作部を前記第２ピボットを支点に回動して、握り
操作部の握り部とハンドルバー間の握り代を変更する握
り代調整機構とを備えたバーハンドル車両用液圧マスタ
シリンダの操作レバーにおいて、前記ノッカーに前記第
１ピボットを囲うガイド孔を形成して、該ガイド孔に対
向する一対の被ガイド面を形成して、該ガイド孔に、被
ガイド面と摺接する２つのガイド面と、該ガイド面と平
行に貫通するめねじ孔とを持った駒部材を収容すると共
に、該駒部材を前記第１ピボットに回動可能に軸支し、
前記ノッカーにアジャストボルトを挿通し、該アジャス
トボルトの軸部を前記ガイド孔を通して前記めねじ孔に
螺合した入出力比調整機構を設けたことを特徴とするバ
ーハンドル車両用液圧マスタシリンダの操作レバー。1. A knocker pivotally supported by a first pivot on a lever holder of a hydraulic master cylinder, and a grip operation unit pivotally supported on the knocker by a second pivot. The piston inserted in the cylinder hole of the hydraulic master cylinder has its tip abutted and its rear end rotatably supported by the working arm of the knocker, and the grip operation part is the second. In the operating lever of the bar handle vehicle hydraulic master cylinder, which is provided with a grip allowance adjusting mechanism for rotating about a pivot as a fulcrum and changing a grip allowance between the grip of the grip operating part and the handlebar, the knocker is provided with A guide hole that surrounds the first pivot is formed, a pair of guided surfaces that face the guide hole are formed, and two guide surfaces that are in sliding contact with the guided surface and are parallel to the guide surface are formed in the guide hole. Female thread penetrating into Accommodating a piece member having a hole, and pivotally supporting the piece member on the first pivot,
A hydraulic steering master cylinder for a bar handle vehicle, characterized in that an input / output ratio adjusting mechanism is provided in which an adjusting bolt is inserted into the knocker, and a shaft portion of the adjusting bolt is screwed into the female screw hole through the guide hole. Operating lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7073825A JPH08268369A (en) | 1995-03-30 | 1995-03-30 | Liquid-pressure master cylinder operation lever for bar-handle vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7073825A JPH08268369A (en) | 1995-03-30 | 1995-03-30 | Liquid-pressure master cylinder operation lever for bar-handle vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08268369A true JPH08268369A (en) | 1996-10-15 |
Family
ID=13529324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7073825A Pending JPH08268369A (en) | 1995-03-30 | 1995-03-30 | Liquid-pressure master cylinder operation lever for bar-handle vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08268369A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6263754B1 (en) * | 1998-07-28 | 2001-07-24 | Sram Corporation | Two axis hand lever |
| US7377367B2 (en) | 2005-02-18 | 2008-05-27 | Shimano Inc. | Hydraulic disc brake lever assembly |
| US7389642B2 (en) | 2005-02-18 | 2008-06-24 | Shimano Inc. | Hydraulic disc brake lever assembly |
| CN104890795A (en) * | 2014-03-04 | 2015-09-09 | 利奇机械工业股份有限公司 | Oil pressure brake control group for bicycle |
| JP2019081441A (en) * | 2017-10-30 | 2019-05-30 | 日信工業株式会社 | Hydraulic master cylinder device for bar handle vehicle |
| JP2019189145A (en) * | 2018-04-27 | 2019-10-31 | 日信工業株式会社 | Fluid pressure master cylinder device for bar handle vehicle |
-
1995
- 1995-03-30 JP JP7073825A patent/JPH08268369A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6263754B1 (en) * | 1998-07-28 | 2001-07-24 | Sram Corporation | Two axis hand lever |
| US7377367B2 (en) | 2005-02-18 | 2008-05-27 | Shimano Inc. | Hydraulic disc brake lever assembly |
| US7389642B2 (en) | 2005-02-18 | 2008-06-24 | Shimano Inc. | Hydraulic disc brake lever assembly |
| US7654366B2 (en) | 2005-02-18 | 2010-02-02 | Shimano Inc. | Hydraulic disc brake lever assembly |
| CN104890795A (en) * | 2014-03-04 | 2015-09-09 | 利奇机械工业股份有限公司 | Oil pressure brake control group for bicycle |
| JP2019081441A (en) * | 2017-10-30 | 2019-05-30 | 日信工業株式会社 | Hydraulic master cylinder device for bar handle vehicle |
| JP2019189145A (en) * | 2018-04-27 | 2019-10-31 | 日信工業株式会社 | Fluid pressure master cylinder device for bar handle vehicle |
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