JPS6215396B2 - - Google Patents

Info

Publication number
JPS6215396B2
JPS6215396B2 JP59067163A JP6716384A JPS6215396B2 JP S6215396 B2 JPS6215396 B2 JP S6215396B2 JP 59067163 A JP59067163 A JP 59067163A JP 6716384 A JP6716384 A JP 6716384A JP S6215396 B2 JPS6215396 B2 JP S6215396B2
Authority
JP
Japan
Prior art keywords
engaging
positioning
operating
lever
positioning mechanism
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.)
Expired
Application number
JP59067163A
Other languages
Japanese (ja)
Other versions
JPS60209377A (en
Inventor
Masashi Nagano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimano Inc
Original Assignee
Shimano Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shimano Industrial Co Ltd filed Critical Shimano Industrial Co Ltd
Priority to JP6716384A priority Critical patent/JPS60209377A/en
Priority to US06/665,941 priority patent/US4751850A/en
Priority to DE8484308002T priority patent/DE3481505D1/en
Priority to EP84308002A priority patent/EP0157983B1/en
Publication of JPS60209377A publication Critical patent/JPS60209377A/en
Publication of JPS6215396B2 publication Critical patent/JPS6215396B2/ja
Priority to US07/079,465 priority patent/US4815330A/en
Priority to US07/259,145 priority patent/US4930368A/en
Priority to US07/260,058 priority patent/US4919004A/en
Granted legal-status Critical Current

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  • Mechanical Control Devices (AREA)
  • Control Of Electric Motors In General (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Transplanting Machines (AREA)

Description

【発明の詳細な説明】 (技術分野) 本発明は、主として自転車に使用する変速操作
装置、詳しくは、固定部材にレバー軸を介して操
作レバーを回動可能に支持し、前記レバーの操作
で変速機を作動させるごとくした変速操作装置に
関する。
DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a gear shift operating device mainly used for bicycles, and more particularly, to a gear shift operating device which is mainly used for bicycles, and more specifically, an operating lever is rotatably supported on a fixed member via a lever shaft, and the lever is operated. The present invention relates to a speed change operation device that operates a transmission.

(従来技術) 一般に、此種変速操作装置は、操作レバーの回
動操作で、変速機を所定の変速段位に切換える場
合、操作レバーを、前記変速段位に対応した適正
位置に回動操作する必要があるが、前記操作レバ
ーに変速機の復帰ばねに打勝つ抵抗を与えるよう
にしたフリクシヨン機構を設けた変速操作装置に
おいては、前記操作レバーを前記した適正位置に
操作することが難しく、一般にはオーバーシフト
を行ない、チエンが希望するスプロケツトに噛合
つたことを、ペダリングを行なう足の感触で感知
し、その後オーバーシフト相当分だけ前記レバー
を戻す操作を行なつているのである。
(Prior art) In general, in this type of shift operating device, when switching the transmission to a predetermined gear position by rotating the operating lever, it is necessary to rotate the operating lever to an appropriate position corresponding to the gear position. However, in a transmission operating device in which the operating lever is provided with a friction mechanism that provides resistance that overcomes the return spring of the transmission, it is difficult to operate the operating lever to the appropriate position, and generally After performing an overshift, the driver senses when the chain has engaged with the desired sprocket by the feel of his pedaling foot, and then returns the lever by the amount equivalent to the overshift.

所が、この操作は熟練を要するのみならず、シ
フト操作に多くの神経を使う必要があると共に前
記レバーの操作時間、即ち、前記レバーの操作開
始から、オーバーシフト分を戻して前記レバーか
ら手を離すまでの時間が長くなり、換言すると自
転車の駆動及び操縦に集中できない時間が長くな
り、特にロードレース等において、そのための時
間ロスが生ずる問題があつた。
However, this operation not only requires skill, but also requires the use of a lot of nerve in the shift operation. In other words, the time it takes to release the bicycle becomes longer, and in other words, the time it takes to concentrate on driving and steering the bicycle becomes longer, which poses the problem of time loss, especially in road races.

しかして以上の問題に対しては、変速操作装置
に、前記変速機の各変速段位に相当する係合部を
もつ位置決め部材と、前記係合部に切換係合する
係合体とから成る前記レバーの位置決め機構を設
けて、操作レバーを、変速段位に対応した適正位
置に、常に正しく回動作できるようにしたものが
提案されている。
However, in order to solve the above problem, the shift operating device includes the lever, which includes a positioning member having an engaging portion corresponding to each gear stage of the transmission, and an engaging body that switches and engages with the engaging portion. It has been proposed that a positioning mechanism is provided so that the operating lever can always be rotated correctly to the appropriate position corresponding to the gear position.

このように位置決め機構を変速操作装置に組込
んだ場合、前記レバーの操作は、前記係合体を係
合部の一つに切換えるだけの操作で変速機により
前記チエンを希望するスプロケツトに適確に掛換
えることができ、前記操作レバーの操作時間を短
縮できる利点があり、シフト操作に神経を使う必
要がなく、それだけ駆動及び操縦に神経を集中で
きるのである。
When the positioning mechanism is incorporated into the speed change operation device in this way, the lever operation allows the transmission to accurately move the chain to the desired sprocket by simply switching the engaging body to one of the engaging parts. This has the advantage of being reversible and shortening the operating time of the operating lever, and there is no need to worry about shifting operations, allowing you to concentrate on driving and steering.

所が、位置決め機構を組込む場合、多段スプロ
ケツト装置の歯組構成及びスプロケツト間の間隔
が同じものであれば問題はないのであるが、前記
スプロケツト間の間隔が異なるスプロケツト装置
に対しては、もともと使用できないし、また前記
歯組構成が異なるスプロケツト装置に対しては、
変速操作装置と変速機とを連結する操作ワイヤの
長さを調整し、前記位置決め機構で設定する位置
と、変速機における変速段位との位置合わせが必
要となるし、また、前記操作ワイヤが伸びた場合
でも、前記同様位置合わせが必要となるのであ
る。
However, when incorporating a positioning mechanism, there is no problem as long as the tooth configuration and spacing between the sprockets of the multi-stage sprocket device are the same, but if the sprocket device has different spacing between the sprockets, However, for sprocket devices with different tooth configurations,
It is necessary to adjust the length of the operating wire that connects the speed change operating device and the transmission, and to align the position set by the positioning mechanism with the gear position of the transmission. Even in this case, alignment is required as described above.

所で、以上の位置合わせは、特にロードレース
に使用するレース用自転車においては、レース中
に車輪を交換する必要があり、これら車輪に設け
る多段スプロケツト装置が変わるような場合、ス
プロケツト間の間隔が同じものであつても、前記
したごとく多段スプロケツト装置の各スプロケツ
トに対する変速機の位置が合わなくなり、これら
の位置合わせに長時間かかるため、レース用自転
車には適用できない問題があつた。
By the way, the above positioning is especially important for racing bicycles used in road races, where the wheels need to be replaced during the race, and when the multi-stage sprocket devices installed on these wheels are changed, the spacing between the sprockets must be adjusted. Even if they are the same, there is a problem that they cannot be applied to racing bicycles because the position of the transmission is not aligned with each sprocket of the multi-stage sprocket device as described above, and it takes a long time to align them.

(発明の目的) 本発明の目的は、操作レバーに対し、フリクシ
ヨン機構と位置決め機構とを設けると共に、この
位置決め機構の位置決め部材と係合体とを係合及
び非係合位置に選択的に変位させる操作機構とを
設けて、前記位置決め部材と係合体とを、係合位
置と非係合位置との選択により、前記フリクシヨ
ン機構と位置決め機構とを択一的又は併用的に選
択でき、しかも、位置決め機構からフリクシヨン
機構に切換え再び位置決め機構に復帰させる場合
でも、前記フリクシヨン機構をもとに操作した任
意な変速位置で、直ちに位置決め機構に切換える
ことができる変速操作装置を提供する点にある。
(Object of the Invention) An object of the present invention is to provide an operating lever with a friction mechanism and a positioning mechanism, and to selectively displace the positioning member and the engaging body of the positioning mechanism to engaged and non-engaged positions. An operating mechanism is provided, and the friction mechanism and the positioning mechanism can be selected alternatively or in combination by selecting the positioning member and the engaging body between an engaged position and a non-engaged position. To provide a speed change operating device which can immediately switch to a positioning mechanism at any speed change position operated based on the friction mechanism even when switching from a mechanism to a friction mechanism and returning to a positioning mechanism.

(発明の構成) 本発明の構成は、固定部材にレバー軸を介して
操作レバーを回動可能に支持し、前記レバーの操
作で変速機を作動させるごとくした変速操作装置
であつて、前記レバーに、前記変速機の復帰ばね
に対抗する回動抵抗を与えるフリクシヨン機構
と、前記変速機の変速段位を設定する複数の係合
部をもつ位置決め部材と、前記係合部の少なくと
も一つに係合する係合体とから成る前記レバーの
位置決め機構と、該位置決め機構の前記位置決め
部材中と係合体との一方を他方に対し変位させ、
前記位置決め部材と係合体との係合位置と非係合
位置とを選択する操作機構とを設けて、位置決め
機構を優先的に使用できながら、この位置決め機
構が機能しない場合、つまり位置合わせが必要な
場合には、フリクシヨン機構を用いて変速操作が
行なえ、しかも、フリクシヨン機構から位置決め
機構に切換える場合、前記フリクシヨン機構の作
動で変速した変速段位のまゝ直ちに位置決め機構
に切換えることができるようにしたのである。
(Structure of the Invention) The structure of the present invention is a speed change operating device in which an operating lever is rotatably supported on a fixed member via a lever shaft, and a transmission is actuated by operating the lever. a friction mechanism that provides rotational resistance against a return spring of the transmission; a positioning member having a plurality of engaging portions for setting a gear position of the transmission; and a positioning member that engages at least one of the engaging portions. a positioning mechanism for the lever comprising a mating engaging body, and displacing one of the positioning member and the engaging body of the positioning mechanism relative to the other;
An operating mechanism for selecting an engaged position and a non-engaged position between the positioning member and the engagement body is provided, and the positioning mechanism can be used preferentially, but if this positioning mechanism does not function, that is, alignment is required. In such a case, a gear shift operation can be performed using a friction mechanism, and when switching from a friction mechanism to a positioning mechanism, the gear can be immediately switched to the positioning mechanism while maintaining the gear position changed by the operation of the friction mechanism. It is.

(実施例) 以下本発明装置の実施例を図面に基づいて説明
する。
(Example) Hereinafter, an example of the apparatus of the present invention will be described based on the drawings.

図示した変速操作装置は、自転車用フレームF
の例えばトツプチユーブに固定する固定部材1
に、レバー軸2を介して操作レバー3を回動可能
に支持し、前記操作レバー3の操作で、操作ワイ
ヤーWを介してリヤ変速機(図示せず)を作動さ
せるようにしたものである。
The illustrated gear shift operation device is a bicycle frame F.
Fixing member 1 to be fixed to, for example, a top tube
An operating lever 3 is rotatably supported via a lever shaft 2, and when the operating lever 3 is operated, a rear transmission (not shown) is actuated via an operating wire W. .

しかして、本発明変速操作装置の基本構造は、
前記操作レバー3に、前記リヤ変速機の復帰ばね
に対抗する回動抵抗を与えるフリクシヨン機構4
と、前記リヤ変速機の変速段位を設定する複数の
係合部51…をもつ位置決め部材5と、前記係合
部51…の少なくとも一つに係合する係合体6と
から成る前記操作レバー3の位置決め機構7と、
該位置決め機構7の前記位置決め部材5と係合体
6との一方を他方に対し変位させ、前記位置決め
部材5と係合体6との係合位置と非係合位置とを
選択する操作機構8とを設けたものである。
Therefore, the basic structure of the speed change operating device of the present invention is as follows:
a friction mechanism 4 that provides rotational resistance to the operating lever 3 against a return spring of the rear transmission;
, a positioning member 5 having a plurality of engaging portions 51 for setting the gear position of the rear transmission, and an engaging body 6 that engages with at least one of the engaging portions 51. a positioning mechanism 7;
an operating mechanism 8 for displacing one of the positioning member 5 and the engaging body 6 of the positioning mechanism 7 relative to the other and selecting an engaged position and a non-engaged position between the positioning member 5 and the engaging body 6; It was established.

第1及び第2図に示した実施例において、前記
固定部材1は、その中心部に取付孔1aを設ける
と共に、側面には、中心にねじ孔2aをもつ筒状
の前記レバー軸2を前記取付孔1aの軸線と直交
する方向に突設している。そして前記取付孔1a
に挿通する取付ねじBと、自転車用フレームに溶
接により直付けするねじ筒10とから成る固定手
段により前記固定部材1を固定したものである。
尚、前記固定部材1は、締付バンドなどの固定手
段を用いて固定してもよい。
In the embodiment shown in FIGS. 1 and 2, the fixing member 1 has a mounting hole 1a in its center, and a cylindrical lever shaft 2 with a screw hole 2a in the center on its side. It protrudes in a direction perpendicular to the axis of the mounting hole 1a. and the mounting hole 1a
The fixing member 1 is fixed by fixing means consisting of a mounting screw B inserted through the bicycle frame and a threaded tube 10 directly attached to the bicycle frame by welding.
Note that the fixing member 1 may be fixed using fixing means such as a tightening band.

又、前記レバー軸2の外周面には、円形軸部2
bと非円形軸部2cとを設けて、前記円形軸部2
bに、前記操作レバー3を回転自由に支持し、又
前記非円形軸部2cに、筒状部91の一側にフラ
ンジ状の蓋部92をもつたキヤツプ9を回転不能
に支持している。
Further, a circular shaft portion 2 is provided on the outer peripheral surface of the lever shaft 2.
b and a non-circular shaft portion 2c, the circular shaft portion 2
b, the operating lever 3 is rotatably supported, and a cap 9 having a flange-like lid portion 92 on one side of a cylindrical portion 91 is non-rotatably supported on the non-circular shaft portion 2c. .

尚、前記レバー軸2は、固定部材1と別に形成
して、固定部材1に対し回転不能に取付けてもよ
い。
Note that the lever shaft 2 may be formed separately from the fixing member 1 and attached to the fixing member 1 in a non-rotatable manner.

又、前記操作レバー3は、そのボス部の中心に
設ける軸孔31部分を前記円形軸部2bに回動自
由に嵌合すると共に、前記軸孔31の一端から、
半径方向外方に拡がる受面32及び段部33を介
して内腔部34を設けており、この内腔部34
と、この内腔部34に挿嵌する前記キヤツプ9の
筒状部91との間に前記位置決め機構7を組込
み、また前記キヤツプ9の筒状部91の端面と前
記受面32との間に前記フリクシヨン機構4を設
けるように成すのである。
Further, the operating lever 3 has a shaft hole 31 provided at the center of the boss portion thereof rotatably fitted into the circular shaft portion 2b, and from one end of the shaft hole 31,
A lumen 34 is provided through a receiving surface 32 and a step 33 that expand radially outward, and this lumen 34
and the cylindrical portion 91 of the cap 9 that is inserted into the inner cavity 34, and the positioning mechanism 7 is incorporated between the end surface of the cylindrical portion 91 of the cap 9 and the receiving surface 32. The above-mentioned friction mechanism 4 is provided.

即ち、前記フリクシヨン機構4は、前記操作レ
バー3における内腔部34内の受面32に見合う
大きさの摩擦部41aをもち、前記レバー軸2の
非円形軸部2cに回転不能で、かつ軸方向移動可
能に嵌挿する摩擦板41を形成して、該摩擦板4
1を前記非円形軸部2cに嵌挿する一方、前記キ
ヤツプ9の外側端面に押込圧を加える頭部42a
と前記レバー軸2のねじ孔2aに進退自由に螺合
するねじ部42bとをもつた調節ボルト42をバ
ネ座金43を介して前記ねじ孔2aに螺合して、
この調節ボルト42の回動操作で、前記キヤツプ
9を介して前記摩擦板41を前記操作レバー3の
受面32に圧接させる押圧力を変えて、前記操作
レバー3に、前記固定部材1に対し、ひいては前
記操作ワイヤーWを介して、前記変速機の復帰ば
ねに対抗する回動抵抗を与え、かつこの抵抗を調
節できるように成したのである。
That is, the friction mechanism 4 has a friction portion 41a of a size corresponding to the receiving surface 32 in the inner cavity 34 of the operating lever 3, and is attached to the non-circular shaft portion 2c of the lever shaft 2 in a non-rotatable manner. A friction plate 41 that is fitted and inserted so as to be movable in a direction is formed, and the friction plate 4
1 into the non-circular shaft portion 2c, and a head 42a that applies pushing pressure to the outer end surface of the cap 9.
and a threaded portion 42b that is screwed freely forward and backward into the threaded hole 2a of the lever shaft 2, and is threaded into the threaded hole 2a via a spring washer 43,
By rotating the adjusting bolt 42, the pressing force that presses the friction plate 41 against the receiving surface 32 of the operating lever 3 via the cap 9 is changed, and the operating lever 3 is pressed against the fixed member 1. In addition, through the operation wire W, rotational resistance is applied to the return spring of the transmission, and this resistance can be adjusted.

つぎに、前記位置決め機構7は、前記位置決め
部材5及び球状の前記係合体6と、該係合体6を
保持し、かつ、前記位置決め部材5の係合部51
に付勢する保持部材71とから構成したもので、
前記位置決め部材5は、筒状に形成して、前記操
作レバー3の内腔部34内の段部33に載置して
相対回転不能に取付けるのであり、この部材5の
内周面における上側の対向個所に、それぞれ前記
変速機の変速段位に相当する孔状の前記係合部5
1…を形成し、かつこの部材5の内周面における
下側に、前記係合体6に対する非係合部52を形
成すると共に、前記係合部51…を非係合部52
との間に、前記係合体6を乗り越え可能に保持す
る内向き凸状の保持壁53を形成するのである。
Next, the positioning mechanism 7 holds the positioning member 5 and the spherical engaging body 6, and the engaging part 51 of the positioning member 5.
It is composed of a holding member 71 that urges the
The positioning member 5 is formed into a cylindrical shape, and is mounted on the step 33 in the inner cavity 34 of the operating lever 3 so as to be non-rotatable. The engaging portions 5 each have a hole shape corresponding to a gear position of the transmission at opposing locations.
1... and a non-engaging part 52 for the engaging body 6 is formed on the lower side of the inner circumferential surface of this member 5, and the engaging part 51... is formed as a non-engaging part 52.
An inwardly convex retaining wall 53 is formed between the retaining wall 53 and the retaining wall 53, which retains the engaging body 6 so that it can be climbed over.

また、前記係合体6の保持部材71は、弾性板
を円弧状とし前記キヤツプ9の筒状部91周りを
軸方向に移動可能に形成して、円弧方向の中間部
位両側に、1対の前記係合体6,6を保持して常
時半径方向外方に付勢する保持部71a,71a
を形成すると共に、円弧方向の中間部位に、前記
キヤツプ9の蓋部92に対し、操作レバー3の軸
心方向に進退自由で、かつ相対回転不能に係合す
る係合片71bを形成するのであり、これに伴つ
て、前記蓋部92には、前記係合片71bの係合
孔92aを形成する。そして、前記保持部材71
は、前記キヤツプ9の筒状部91と位置決め部材
5との間に介装し、かつ係合片71bをこの係合
孔92aに係合させて、前記保持部71a,71
aに係合体6,6を係合した状態で、該係合体
6,6が、前記位置決め部材5における上側の各
係合部51に…に対する係合位置と、下側の非係
合部52に対する非係合位置とに亘つて、操作レ
バー3の軸芯方向に変位可能に成すのである。
The holding member 71 of the engaging body 6 has an elastic plate shaped like an arc and is movable in the axial direction around the cylindrical portion 91 of the cap 9. Holding parts 71a, 71a that hold the engaging bodies 6, 6 and always urge them radially outward
At the same time, an engaging piece 71b is formed at an intermediate portion in the arcuate direction to be able to move forward and backward in the axial direction of the operating lever 3 and engage with the lid part 92 of the cap 9 in a manner that prevents relative rotation. Accordingly, an engagement hole 92a for the engagement piece 71b is formed in the lid portion 92. And the holding member 71
is interposed between the cylindrical part 91 of the cap 9 and the positioning member 5, and the engaging piece 71b is engaged with the engaging hole 92a, so that the holding parts 71a, 71
In the state in which the engaging bodies 6, 6 are engaged with the positioning member 5, the engaging bodies 6, 6 are placed in the engagement position with respect to each of the upper engaging portions 51 of the positioning member 5 and the lower non-engaging portion 52. The operating lever 3 is movable in the axial direction between the disengaged position and the disengaged position.

つぎに、前記位置決め機構7における位置決め
部材5と係合体6との係合位置と非係合位置とを
選択する前記操作機構8は、第1及び第2図のご
とく前記保持部材71と位置決め部材5との間に
回転自由に挿入する筒体81と、該筒体81の一
側に設けて前記キヤツプ9の蓋部92と操作レバ
ー3のボス部対向面との間に回転自由で、かつ軸
方向移動不能に介装するフランジ部82と、該フ
ランジ部82の一側に取付ける操作部83とから
構成したもので、前記筒体81に前記操作部83
の回転操作により、前記係合体6を前記位置決め
部材5に対する係合位置と非係合位置とに切換変
位させる切換孔84を、周方向に沿い、かつ軸芯
方向に傾斜するごとく設けるのである。
Next, the operating mechanism 8 that selects an engagement position and a non-engagement position between the positioning member 5 and the engaging body 6 in the positioning mechanism 7 operates the holding member 71 and the positioning member as shown in FIGS. 5, and a cylinder 81 provided on one side of the cylinder 81 to be freely rotatable between the lid 92 of the cap 9 and the boss portion facing surface of the operating lever 3. It is composed of a flange portion 82 that is installed so as not to be movable in the axial direction, and an operating portion 83 that is attached to one side of the flange portion 82.
A switching hole 84 is provided along the circumferential direction and inclined in the axial direction for switching and displacing the engaging body 6 between an engaging position and a non-engaging position with respect to the positioning member 5 by the rotational operation.

しかして、以上の構成において、前記フリクシ
ヨン機構4及び位置決め機構7は、それぞれ各別
の操作で互いに独立的に作動状態と不作動状態と
に切換えできるのである。即ち、フリクシヨン機
構4は、調節ボルト42の回転操作により、前記
変速機の復帰ばねに対抗する回転抵抗を調節可能
に与える作動状態と、回転抵抗を零とする不作動
状態とに切換えできるのであり、また前記操作レ
バー3の位置決め機構7は、前記操作機構8の操
作部83の回転操作により、前記係合体6を前記
位置決め部材5に対する係合位置と非係合位置と
に変位させて、前記操作レバー3を、前記リヤ変
速機を多段スプロケツトの各変速段位に対応する
変速操作装置に位置決め作動する状態と、位置決
め不作動する状態とに切換えできるのである。
Therefore, in the above configuration, the friction mechanism 4 and the positioning mechanism 7 can be switched between the operating state and the non-operating state independently of each other by separate operations. That is, by rotating the adjustment bolt 42, the friction mechanism 4 can be switched between an operating state in which it adjustably provides rotational resistance against the return spring of the transmission, and an inoperative state in which the rotational resistance is zero. Furthermore, the positioning mechanism 7 of the operating lever 3 displaces the engaging body 6 between an engaging position and a non-engaging position with respect to the positioning member 5 by a rotational operation of the operating part 83 of the operating mechanism 8. The operating lever 3 can be switched between a state in which the rear transmission is operated to position the gear shift operating device corresponding to each gear stage of the multi-stage sprocket, and a state in which it is not operated in position.

斯くして、前記フリクシヨン機構4のみ作動状
態とした場合には、操作レバー3を、変速段位に
相当する回動位置を越えるごとくオーバーシフト
気味に操作した後において、この回動位置に戻し
操作することにより、前記変速機の切換作動を行
なえるのである。
In this way, when only the friction mechanism 4 is activated, the operating lever 3 is operated to overshift beyond the rotational position corresponding to the gear position, and then returned to this rotational position. This makes it possible to perform the switching operation of the transmission.

また、前記操作レバー3の位置決め機構7のみ
作動状態とした場合には、操作レバー3をオーバ
ーシフトした後、戻し操作する無駄な操作を行な
うことなく、常に変速機を正確に所望の変速操作
位置に操作でき、熟練者でなくとも、また、シフ
ト操作に神経を使うことなく、簡単かつ迅速に変
速操作を完了できるのである。
Furthermore, when only the positioning mechanism 7 of the control lever 3 is activated, the transmission can always be accurately positioned at the desired shift operation position without having to carry out unnecessary operations such as returning the control lever 3 after overshifting. It can be operated easily and quickly, and even non-experts can easily and quickly complete the shift operation without having to worry about shifting.

しかして、以上の構成において、例えば、レー
ス用自転車に適用する場合、前記位置決め機構7
を優先させ、該位置決め機構7を用いて簡単かつ
迅速に変速操作を行なうことができると共に、レ
ース途中で車輛を交換した場合、この車輪に装着
する多段スプロケツト装置の歯組構成などが変わ
り、前記位置決め機構7及びリヤ変速機における
各変速段の変速位置が合わなくなれば、これらの
位置合わせを行なわなくとも、前記操作機構8を
操作するだけで、前記位置決め機構7を不作動状
態として、前記調節ボルト42の調節操作を行な
い、前記フリクシヨン機構を作動状態として該フ
リクシヨン機構4を用いることができるのであ
り、従つて、面倒な前記位置合わせを行なうこと
なく、そのままレースを続けられることになるの
である。
In the above configuration, for example, when applied to a racing bicycle, the positioning mechanism 7
Priority is given to the gear shift operation using the positioning mechanism 7, and when the vehicle is changed during a race, the gear configuration of the multi-stage sprocket device attached to the wheel changes, and the above-mentioned If the positioning mechanism 7 and the shift positions of the respective gears in the rear transmission do not match, simply operating the operating mechanism 8 will put the positioning mechanism 7 in the inactive state and the adjustment will be performed without aligning these positions. By adjusting the bolts 42, the friction mechanism 4 can be used with the friction mechanism in operation, and therefore the race can be continued without having to perform the troublesome positioning. .

尚、前記した用い方において、前記フリクシヨ
ン機構4を、前記調節ボルト42の操作で、作動
状態としたり不作動状態とするように説明した
が、前記フリクシヨン機構4は、前記位置決め機
構7を作動状態にしている場合でも作動状態にす
ることもできる。
In the above-described usage, it has been explained that the friction mechanism 4 is set in the operating state or in the non-operating state by operating the adjustment bolt 42. It can also be activated even when the

斯くする場合には、前記位置決め機構7の動作
をより確実に行なえることになるし、また、位置
決め機構7を不作動状態に切換えた場合でも、前
記調節ボルト42を操作して前記フリクシヨン機
構4を作動状態にする必要がなく、特にロードレ
ースでの車輪交換時に前記位置決め機構7を不作
動状態に切換える場合、前記調節ボルト42によ
るフリクシヨン調節作業を不要にできるのであ
る。
In this case, the operation of the positioning mechanism 7 can be performed more reliably, and even when the positioning mechanism 7 is switched to the inoperative state, the adjustment bolt 42 can be operated to adjust the friction mechanism 4. There is no need to put the positioning mechanism 7 into the operative state, and especially when the positioning mechanism 7 is switched to the inoperative state when changing wheels in a road race, the friction adjustment work using the adjustment bolt 42 can be made unnecessary.

次に、第3及び第4図に示した実施例について
説明する。この実施例のものと前記した第1及び
第2図に示したものとの相違点は、前記操作機構
8を、前記キヤツプ9に設けて、前記調節ボルト
42の操作だけで、前記フリクシヨン機構4と位
置決め機構7とを択一的に選択できるように成し
た点である。尚、第1乃至第2図のものと基本的
に同一の部品については同一符号を用いた。
Next, the embodiment shown in FIGS. 3 and 4 will be described. The difference between this embodiment and the one shown in FIGS. 1 and 2 described above is that the operating mechanism 8 is provided in the cap 9, and the friction mechanism 4 can be adjusted by simply operating the adjusting bolt 42. The point is that the positioning mechanism 7 and the positioning mechanism 7 can be selected alternatively. Note that the same reference numerals are used for parts that are basically the same as those shown in FIGS. 1 and 2.

即ち、前記位置決め機構7は、前記操作レバー
3の内腔部34に嵌入して相対回転不能に取付け
る前記位置決め部材5と、球状の前記係止体6の
保持部材72とにより構成し、この保持部材72
は、円弧状とし拡径状に付勢作動するように形成
したばね筒73に、外向き保持孔74aをもつた
保持体74を取付け、かつこの保持孔74aに前
記係止体6を保持させて、この係止体6を、前記
ばね筒73の拡径及び縮径方向の撓みにより、前
記位置決め部材5に対する係合位置と非係合位置
とに亘り半径方向に変位できるように成したので
ある。
That is, the positioning mechanism 7 is constituted by the positioning member 5 that is fitted into the inner cavity 34 of the operation lever 3 and is attached so as not to be relatively rotatable, and the holding member 72 of the spherical locking body 6. member 72
A holder 74 having an outward holding hole 74a is attached to a spring cylinder 73 formed in an arc shape so as to be biased to expand its diameter, and the locking body 6 is held in this holding hole 74a. The locking body 6 is configured to be able to be displaced in the radial direction between an engagement position and a non-engagement position with respect to the positioning member 5 by bending the spring tube 73 in the diameter expansion and diameter contraction directions. be.

そして、前記操作機構8は、前記キヤツプ9の
蓋部92に、前記ばね筒73の対向端部の外周縁
に対し、キヤツプ9の進入操作により前記ばね筒
73を縮径させるカム面85を設けて、第3図の
ごとく前記キヤツプ9を退出位置とした前記フリ
クシヨン機構4の不作動時においては、カム面8
5を不作動位置に位置させて前記位置決め機構7
を作動状態、即ち、球状の係合体6と孔状の係合
部51とが係合した状態にすべく成し、かつ、前
記キヤツプ9を進出させた前記フリクシヨン機構
4の作動時においては、このカム面85を作動位
置迄移動させ、ばね筒73を縮径作動させて前記
位置決め機構7を不作動状態、即ち係合体6と係
合部51とが離脱した状態にすべく成すのであ
る。
The operating mechanism 8 is provided with a cam surface 85 on the lid portion 92 of the cap 9, which causes the spring tube 73 to contract in diameter when the cap 9 enters the cap 9, relative to the outer periphery of the opposite end of the spring tube 73. As shown in FIG. 3, when the friction mechanism 4 is inactive with the cap 9 in the retracted position, the cam surface 8
5 in the inoperative position and the positioning mechanism 7
When the friction mechanism 4 is activated, that is, the spherical engaging body 6 and the hole-shaped engaging portion 51 are engaged, and the cap 9 is advanced, This cam surface 85 is moved to the operating position, and the spring tube 73 is operated to reduce its diameter, thereby placing the positioning mechanism 7 in an inoperative state, that is, a state in which the engaging body 6 and the engaging portion 51 are disengaged.

従つて、この実施例によれば、前記調節ボルト
42を操作するだけで、前記フリクシヨン機構4
及び位置決め機構7を択一的に簡単かつ迅速に選
択できるのである。
Therefore, according to this embodiment, the friction mechanism 4 can be adjusted simply by operating the adjustment bolt 42.
The positioning mechanism 7 can be easily and quickly selected as an alternative.

次に、第5乃至第7図に示した実施例について
説明する。この実施例のものと前記した第3及び
第4図に示したものとの相違点は、前記位置決め
機構7の位置決め部材5及び係合体6として、ラ
チエツト及び該ラチエツト係脱自由に係合する突
起を用いるごとくした点である。尚、第3乃至第
4図のものと基本的に同一の部品については同一
符号を用いた。
Next, the embodiment shown in FIGS. 5 to 7 will be described. The difference between this embodiment and those shown in FIGS. 3 and 4 described above is that the positioning member 5 and engaging body 6 of the positioning mechanism 7 include a ratchet and a protrusion that freely engages with the ratchet. The point is that it is like using . Note that the same reference numerals are used for parts that are basically the same as those shown in FIGS. 3 and 4.

即ち、前記位置決め機構7の位置決め部材5
は、非円形孔をもつた筒状に形成して、前記レバ
ー軸2の非円形軸部2cに軸方向移動自由で、回
転不能に支持すると共に、上側部位に外向きフラ
ンジ54を設けて、該フランジ54の下面に複数
の前記係合部51…をラチエツト状に形成し、か
つ下側部位に前記フランジ51の下方に対向する
ごとく止め輪55を支持するのである。
That is, the positioning member 5 of the positioning mechanism 7
is formed into a cylindrical shape with a non-circular hole, is supported on the non-circular shaft portion 2c of the lever shaft 2 so as to be freely movable in the axial direction and non-rotatable, and is provided with an outward flange 54 on the upper portion, A plurality of engaging portions 51 are formed in a ratchet shape on the lower surface of the flange 54, and a retaining ring 55 is supported at the lower portion so as to face downwardly from the flange 51.

また、前記位置決め機構7の係止体6は、前記
位置決め部材5周りの前記フランジ54と止め輪
55との間に回動及び軸方向移動自由に配置する
筒体61と、該筒体61の周りに配設して、前記
操作レバー3の内腔部周壁に対し軸方向移動自由
にスプライン嵌合する複数の案内体62…とを備
え、前記筒体61の上面に前記係合部51…に係
脱自由に係止する上向き状の突起63を形成する
のである。
The locking body 6 of the positioning mechanism 7 includes a cylindrical body 61 disposed around the positioning member 5 between the flange 54 and the retaining ring 55 so as to be freely rotatable and axially movable. A plurality of guide bodies 62 are disposed around the operating lever 3 and are spline-fitted to the inner circumferential wall of the operating lever 3 so as to be freely movable in the axial direction. An upwardly directed protrusion 63 is formed to freely engage and disengage.

そして、前記位置決め機構7は、前記位置決め
部材5に、前記係止体6を前記係合部51に係止
するごとく挿嵌し、かつこの係止体6を係止方向
に付勢するスプリングSを挿嵌した後、該スプリ
ングSの後部に前記止め輪55を当てがつて取付
けることにより、全体にユニツト状に組立てすべ
く成したのであり、斯く組立てた位置決め機構7
は、前記位置決め部材5を前記レバー軸2の非円
形軸部2cに嵌挿して、前記止め輪55を、前記
操作レバー3における内腔部34の受面32に載
置すると共に、前記係止体6の案内体62…を内
腔部34の周壁にスプライン嵌合させるのであ
る。
The positioning mechanism 7 inserts the locking body 6 into the positioning member 5 so as to lock it in the engaging portion 51, and the spring S biases the locking body 6 in the locking direction. After inserting the retaining ring 55 into the rear part of the spring S, the retaining ring 55 is attached to the rear part of the spring S, thereby assembling the entire assembly into a unit.
The positioning member 5 is fitted into the non-circular shaft portion 2c of the lever shaft 2, the retaining ring 55 is placed on the receiving surface 32 of the inner cavity 34 of the operating lever 3, and the locking The guide bodies 62 of the body 6 are spline-fitted to the peripheral wall of the inner cavity 34.

また一方、前記操作機構8は、前記キヤツプ9
の筒状部91外周を非円形にして、前記位置決め
部材5の非円形孔に回転不能に挿入すると共に、
前記位置決め部材5の上端面に座金Aを載置し
て、前記調節ボルト42の回転操作で、前記キヤ
ツプ9を進入作動させて前記座金Aを押圧するこ
とにより、座金Aで前記係止体6の各案内体62
…を押圧して、前記係止体6を前記位置決め部材
5の係止部51…に対する非係止位置まで移動さ
せ、かつ前記キヤツプ9を退出作動させることに
より、前記スプリングSの押圧力で、前記係止体
6を前記係止部51…に対する非係止位置に復帰
すべく成すのである。
On the other hand, the operating mechanism 8 is connected to the cap 9.
The outer periphery of the cylindrical part 91 is made non-circular, and the cylindrical part 91 is inserted non-rotatably into the non-circular hole of the positioning member 5,
A washer A is placed on the upper end surface of the positioning member 5, and by rotating the adjusting bolt 42, the cap 9 is moved in and the washer A is pressed, so that the locking body 6 is moved by the washer A. Each guide body 62 of
By pressing..., moving the locking body 6 to a non-locking position with respect to the locking part 51 of the positioning member 5, and moving the cap 9 out, the pressing force of the spring S causes This is done to return the locking body 6 to the non-locking position with respect to the locking portions 51.

そして、前記操作機構8における前記調節ボル
ト42とキヤツプ9との関係については第7図の
ごとく構成するのである。
The relationship between the adjustment bolt 42 and the cap 9 in the operating mechanism 8 is constructed as shown in FIG.

即ち、前記調節ボルト42の頭部裏面における
外周縁の相対向する部位に、1対の円弧状凹部
p,pを、長さ方向両側に連続する傾斜面rを介
して形成すると共に、前記キヤツプ9の表面にお
ける前記凹部p,pに対応する部位に、該凹部
p,pに嵌入する1対の円弧状凸部q,qを、長
さ方向両側に連続する傾斜面sを介して形成し
て、前記調節ボルト42を進入方向に回転操作す
ることにより、その頭部を前記キヤツプ9に接近
作動させて、前記凹部p,pに前記凸部q,qを
嵌入させるのであり、この状態における前記調節
ボルト42の回転操作位置を前記位置決め機構7
の作動位置とするのであり、この位置では、前記
凹部pと凸部qとが嵌合しているので、調節ボル
ト42の抜止めを防止できる。
That is, a pair of arcuate recesses p, p are formed at opposing portions of the outer circumferential edge of the back surface of the head of the adjustment bolt 42 via sloped surfaces r that are continuous on both sides in the length direction, and the cap A pair of arcuate convex portions q, q that fit into the concave portions p, p are formed at portions corresponding to the concave portions p, p on the surface of 9 via sloped surfaces s that are continuous on both sides in the length direction. Then, by rotating the adjusting bolt 42 in the advancing direction, its head is brought closer to the cap 9, and the protrusions q, q are fitted into the recesses p, p. The rotational operation position of the adjustment bolt 42 is determined by the positioning mechanism 7.
In this position, the concave portion p and the convex portion q are fitted, so that the adjustment bolt 42 can be prevented from coming off.

この場合、前記調節ボルト42を操作する手に
おいて、前記凹部p,pと凸部q,qとが嵌合作
動したことを触感で判別できるのである。
In this case, with the hand operating the adjustment bolt 42, it can be tactilely determined that the recesses p, p and the protrusions q, q have engaged with each other.

そして、前記調節ボルト42を進入方向にさら
に回転操作すると、前記凹部pに嵌入した前記キ
ヤツプ9の凸部qがこの凹部pから離脱して、
次々に回動して来る凹部pに対し嵌入・離脱する
動作を繰返して前記キヤツプ9を押込むのであ
り、これにより、前記位置決め機構7が不作動状
態になると共に、前記フリクシヨン機構4が作動
状態に切換えられるのである。
Then, when the adjustment bolt 42 is further rotated in the advancing direction, the convex part q of the cap 9 that has been fitted into the concave part p is separated from the concave part p.
The cap 9 is pushed into and out of the concave portions p which are rotated one after another by repeating the insertion and removal operations, and as a result, the positioning mechanism 7 becomes inactive and the friction mechanism 4 becomes active. It can be switched to .

また、前記フリクシヨン機構4は、前記レバー
軸2に対し、底板46を介して載置し、前記調節
ボルト42の回転操作で、前記キヤツプ9を進入
作動させて、前記位置決め機構7を不作動状態に
したとき、前記キヤツプ9による押圧力で、第6
図に示したごとく前記底板46と操作レバー3と
の間、及び前記係止体6と座金Aとの間、及び前
記キヤツプ9と前記操作レバー3との対向外周部
間で、前記押圧力に見合うフリクシヨンを生じさ
せるように成すのである。
Further, the friction mechanism 4 is placed on the lever shaft 2 via a bottom plate 46, and when the adjustment bolt 42 is rotated, the cap 9 is moved in and the positioning mechanism 7 is placed in an inoperative state. , the pressing force of the cap 9 causes the sixth
As shown in the figure, the pressing force is applied between the bottom plate 46 and the operating lever 3, between the locking body 6 and the washer A, and between the opposing outer peripheral portions of the cap 9 and the operating lever 3. This is done in such a way as to produce a corresponding friction.

従つて、この実施例によつても、前記調節ボル
ト42を操作するだけで、前記フリクシヨン機構
4及び位置決め機構7を択一的に簡単かつ迅速に
選択できるのである。
Therefore, also in this embodiment, the friction mechanism 4 and the positioning mechanism 7 can be selected easily and quickly by simply operating the adjustment bolt 42.

所で、前記位置決め機構7の位置決め部材5に
設けたラチエツト状の係合部51…は、操作レバ
ー3を変速機のリターンばねの押圧力に対抗する
方向に回転操作するときの傾斜角度を、反対方向
に回転操作するときの傾斜角度にくらべて、係合
体6の離脱抵抗が小さくなるごとく緩やかに形成
するのが好ましく、斯くすることにより、両方向
の操作力の大きさを均すことができる。
Incidentally, the ratchet-shaped engaging portions 51 provided on the positioning member 5 of the positioning mechanism 7 adjust the inclination angle when the operating lever 3 is rotated in a direction opposing the pressing force of the return spring of the transmission. It is preferable to form the angle of inclination gently so that the resistance to disengagement of the engaging body 6 is smaller than that when rotating in the opposite direction, and by doing so, the magnitude of the operating force in both directions can be equalized. .

次に、前記位置決め機構7と操作機構8は、前
記した3つの実施例のごとく構成する外、第8乃
至第10図の各実施例のごとく構成することもで
きる。
Next, the positioning mechanism 7 and the operating mechanism 8 may be constructed as in each of the embodiments shown in FIGS. 8 to 10, in addition to being constructed as in the three embodiments described above.

即ち、第8図において、前記位置決め機構5
は、前記操作レバー3の内腔部34内において、
その底部に、周方向に係合部51…を配設した円
板状の前記位置決め部材5を載置すると共に、そ
の上位に、ばね板75に係合体6の保持体76を
取付けた前記保持体77を配置して、該保持部材
77のばね75の両側を前記内腔部34の開口縁
に相対回転不能に係止する。そして、前記操作機
構8は、前記位置決め部材5における前記係止体
6の内周側に、前記ばね板75方向に突出する突
起56を設けると共に、前記調節ボルト42の進
入操作により非回転状態で進入作動する押圧体8
6を設けて、該押圧体86で前記ばね板75の中
間部を押圧して、前記調節ボルト42を、第8図
のごとく非進入位置に位置させたとき、前記係合
体6を前記位置決め部材5に対する係合位置に位
置させ、かつ前記調節ボルト42を進入させるこ
とにより前記ばね板75は、中間部が押込まれ、
その周部が前記突起56に当接して、前記係合体
6を前記位置決め部材5の係合部51から離脱作
動させて、非係合位置に位置させるようにしたも
のである。そして、この第8図に示したものは、
前記位置決め部材5と前記内腔部34の底部との
間に摩擦部材44を設けて、前記調節ボルト42
の進入操作で、ばね板75及び突起56を介して
前記位置決め部材5によりこの摩擦部材44を加
圧してフリクシヨンを発生させるフリクシヨン機
構4を設けて、前記調節ボルト42の非進入及び
進入位置への操作により、前記位置決め機構7と
フリクシヨン機構4とを択一的に選択できるよう
に成したのである。
That is, in FIG. 8, the positioning mechanism 5
is in the inner cavity 34 of the operating lever 3,
At the bottom thereof, the disc-shaped positioning member 5 having engaging portions 51 disposed in the circumferential direction is placed, and above the positioning member 5, the holding body 76 of the engaging body 6 is attached to a spring plate 75. The body 77 is arranged so that both sides of the spring 75 of the holding member 77 are fixed to the opening edge of the inner cavity 34 so as not to rotate relative to each other. The operating mechanism 8 is provided with a protrusion 56 protruding toward the spring plate 75 on the inner peripheral side of the locking body 6 in the positioning member 5, and is in a non-rotating state when the adjusting bolt 42 is inserted. Pressing body 8 that operates to enter
6 is provided, and when the pressing body 86 presses the intermediate portion of the spring plate 75 and the adjusting bolt 42 is positioned at the non-advancing position as shown in FIG. By positioning the spring plate 75 in the engagement position with respect to the spring plate 75 and advancing the adjustment bolt 42, the middle portion of the spring plate 75 is pushed in.
The peripheral portion thereof comes into contact with the protrusion 56, and the engaging body 6 is actuated to disengage from the engaging portion 51 of the positioning member 5, and is placed in a non-engaging position. And what is shown in Figure 8 is
A friction member 44 is provided between the positioning member 5 and the bottom of the inner cavity 34, and the adjusting bolt 42
A friction mechanism 4 is provided which presses the friction member 44 by the positioning member 5 via the spring plate 75 and the protrusion 56 to generate friction when the adjusting bolt 42 is moved into the non-entering position and into the entering position. The positioning mechanism 7 and the friction mechanism 4 can be selectively selected by operation.

また、第9図に示したものでは、位置決め機構
7は、操作レバー3の内腔部34に嵌入する筒状
の位置決め部材5と、該部材5の内周側に配置し
て係合体6を半径方向外方に付勢するばね筒73
と、係合体6の保持部材94とから成り、該保持
部材94は、前記操作機構8を兼ねるもので、調
節ボルト42の進入操作で、非回転状態で進入作
動する押圧体95に設けて、該押圧体95の非進
入及び進入作動により、前記係合体6を、周方向
に変位作動させ、前記位置決め部材5に対する係
合位置と非係合位置とを選択できるようにしたも
のである。そして、この第9図に示したものは、
前記内腔部34の底部において、固定部材(図示
せず)に対し回転不能に摩擦板45を設け、前記
押圧体95の進入作動で前記操作レバー3に対し
フリクシヨンを発生させるフリクシヨン機構4を
設けて、前記調節ボルト42の操作により、前記
位置決め機構7とフリクシヨン機構4とを択一的
に選択できるように成したのである。
In addition, in the one shown in FIG. 9, the positioning mechanism 7 includes a cylindrical positioning member 5 that fits into the inner cavity 34 of the operating lever 3, and an engaging body 6 disposed on the inner circumferential side of the member 5. Spring cylinder 73 that urges outward in the radial direction
and a holding member 94 of the engaging body 6, the holding member 94 also serving as the operating mechanism 8, and is provided on a pressing body 95 that is operated to enter in a non-rotating state when the adjusting bolt 42 is entered, The engagement body 6 is displaced in the circumferential direction by the non-intrusion and intrusion operations of the pressing body 95, so that an engagement position and a non-engagement position with respect to the positioning member 5 can be selected. And what is shown in this Figure 9 is
A friction plate 45 is provided at the bottom of the inner cavity 34 so as not to rotate with respect to a fixed member (not shown), and a friction mechanism 4 is provided that generates friction against the operating lever 3 when the pressing body 95 enters. Thus, by operating the adjustment bolt 42, the positioning mechanism 7 and the friction mechanism 4 can be selectively selected.

また、第10図においては、位置決め機構7
は、孔状の係合部51…をもつた位置決め部材5
と係合体6と該係合体6を保持して前記係合部5
1に対し付勢する保持部材78とにより形成する
と共に、操作機構8は、調節ボルト(図示せず)
の進入操作で、前記位置決め部材5の係合体側に
沿つて進入作動する作動体88を設けて、この作
動体88の進入により、前記係合部51に対し係
合位置にある係合体6を、保持部材78の付勢力
に抗して離間させ、この作動体88で前記係合部
51の開口を蓋状に閉じて、非係合位置に位置さ
せるように成したのである。
In addition, in FIG. 10, the positioning mechanism 7
is a positioning member 5 having hole-shaped engaging portions 51...
and the engaging body 6. Holding the engaging body 6, the engaging part 5
1, and the operating mechanism 8 includes an adjustment bolt (not shown).
An actuating body 88 is provided that moves along the engagement body side of the positioning member 5 when the actuating body 88 approaches the engagement body 6 in the engagement position with respect to the engagement portion 51. , the engaging portion 51 is moved apart against the biasing force of the holding member 78, and the opening of the engaging portion 51 is closed like a lid by the actuating body 88, so that the engaging portion 51 is placed in the non-engaging position.

以上説明した各実施例において、位置決め機構
7を不作動として、フリクシヨン機構4に切換え
る場合、位置決め部材5と係合体6とを係合しな
い非係合位置に操作して行なうのであつて、前記
位置決め部材5と係合体6との一方は、操作レバ
ー3と共廻いすることになるから、フリクシヨン
機構7の作動により任意の変速段位に変速したと
き、前記係合体6は、前記変速段位に対応した位
置決め部材5における任意な係合部51に対応す
ることになる。
In each of the embodiments described above, when the positioning mechanism 7 is inactivated and switched to the friction mechanism 4, the positioning member 5 and the engaging body 6 are operated to a non-engaged position where they do not engage. Since one of the member 5 and the engaging body 6 rotates together with the operating lever 3, when the gear is shifted to an arbitrary gear position by the operation of the friction mechanism 7, the engaging body 6 is rotated to correspond to the gear position. This corresponds to an arbitrary engaging portion 51 in the positioning member 5.

従つて、フリクシヨン機構4の作動状態から再
び位置決め機構7を作動状態に切換える場合、フ
リクシヨン機構4の作動で変速した前記変速段位
のまゝ直ちに位置決め機構7の作動状態、即ち、
前記係合体6を前記係合部51に係合させること
ができるのであつて、位置決め機構7からフリク
シヨン機構4に切換えたときの変速段位に一旦戻
した後フリクシヨン機構4から位置決め機構7に
復帰させる手間を不要にできる。それだけ、切換
操作を迅速に行なうことができるのである。
Therefore, when switching the positioning mechanism 7 from the operating state of the friction mechanism 4 to the operating state again, the operating state of the positioning mechanism 7 is immediately changed to the operating state of the positioning mechanism 7 while remaining at the gear position changed by the operation of the friction mechanism 4.
The engaging body 6 can be engaged with the engaging portion 51, and after the gear position is once returned to the gear position at which the positioning mechanism 7 was switched to the friction mechanism 4, the friction mechanism 4 is returned to the positioning mechanism 7. It can save you time and effort. This allows the switching operation to be performed quickly.

尚、前記位置決め部材5と係合体6との係合及
び非係合位置を選択する操作機構8については、
以上説明したものに限定されるものでなく、両者
の一方を他方に対し変位させ、両者の係合及び非
係合位置を選択させ得る各種の機構を選定でき
る。
Regarding the operating mechanism 8 for selecting the engagement and non-engagement positions between the positioning member 5 and the engagement body 6,
The present invention is not limited to those described above, and various mechanisms can be selected that can displace one of the two relative to the other and select the engagement and non-engagement positions of the two.

また、以上の説明では、リヤ変速機に対するも
のについて説明したが、フロント変速機に対する
ものにも適用し得ることは云う迄もない。
Further, in the above description, the explanation has been made regarding the rear transmission, but it goes without saying that the present invention can also be applied to the front transmission.

(発明の効果) 以上のごとく本発明は、操作レバーに対し、フ
リクシヨン機構と位置決め機構とを設けると共
に、この位置決め機構の位置決め部材と係合体と
を係合及び非係合位置に選択的に変位させる操作
機構とを設けたので、前記フリクシヨン機構と位
置決め機構とを必要に応じて選択することが可能
となり、ひいては位置決め機構を優先的に用いる
ことができ、この位置決め機構により、操作レバ
ーの操作による変速を簡単にかつ、迅速に行なえ
ながら、操作ワイヤが伸びたり、或いは多段スプ
ロケツト装置の歯組構成などが変わつて前記位置
決め機構が、前記ワイヤの長さを調節しないと機
能しない場合には、フリクシヨン機構を用いて変
速操作が行なえるのであつて、特にロードレース
に用いる自転車に適用する場合、前記ワイヤの長
さ調節のためのロスタイムをなくし得るのであ
る。
(Effects of the Invention) As described above, the present invention provides an operating lever with a friction mechanism and a positioning mechanism, and selectively displaces the positioning member and the engaging body of the positioning mechanism to the engaged and non-engaged positions. Since the friction mechanism and the positioning mechanism are provided, it is possible to select the friction mechanism and the positioning mechanism as necessary, and the positioning mechanism can be used preferentially. Although the gear can be changed easily and quickly, if the operating wire is stretched or the tooth configuration of the multi-stage sprocket device is changed and the positioning mechanism cannot function unless the length of the wire is adjusted, the friction Since the speed change operation can be performed using the mechanism, especially when applied to a bicycle used for road racing, it is possible to eliminate the loss time for adjusting the length of the wire.

しかも、位置決め機構からフリクシヨン機構に
切換えた後、再び位置決め機構に切換える場合、
操作レバーを前記位置決め機構からフリクシヨン
機構に切換えた変速段位(例えばトツプ位置)に
戻さなくとも、前記フリクシヨン機構の動作のも
とに変速した変速段位(例えばロー位置)のまゝ
で、直ちに位置決め機構に切換えられるのであつ
て、それだけ選択操作が迅速、かつ容易に行なう
ことができるのである。
Moreover, when switching from the positioning mechanism to the friction mechanism and then switching back to the positioning mechanism,
Even if the operating lever is not returned to the gear position at which the positioning mechanism was switched to the friction mechanism (for example, the top position), the positioning mechanism is immediately switched to the gear position at which the gear position was changed (for example, the low position) under the operation of the friction mechanism. Therefore, the selection operation can be performed quickly and easily.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案の実施例を示すもので、第1図は
要部の断面正面図、第2図は組立前の状態を示す
説明図、第3図は他の実施例の要部断面正面図、
第4図は第3図のものの組立前の状態を示す説明
図、第5図は他の実施例の要部断面正面図、第6
図は第5図のものの組立前の状態を示す説明図、
第7図は第5及び第6図におけるキヤツプと調節
ボルトとの具体的関係を示す説明図、第8乃至第
10図は他の実施例を示す断面説明図である。 1…固定部材、2…レバー軸、3…操作レバ
ー、4…フリクシヨン機構、5…位置決め部材、
51…係合部、6…係合体、7…位置決め機構、
8…操作機構。
The drawings show an embodiment of the present invention; FIG. 1 is a cross-sectional front view of the main part, FIG. 2 is an explanatory diagram showing the state before assembly, and FIG. 3 is a cross-sectional front view of the main part of another embodiment. ,
FIG. 4 is an explanatory diagram showing the state before assembly of the one shown in FIG. 3, FIG. 5 is a sectional front view of main parts of another embodiment, and FIG.
The figure is an explanatory diagram showing the state of the one in Figure 5 before assembly,
FIG. 7 is an explanatory diagram showing the specific relationship between the cap and the adjustment bolt in FIGS. 5 and 6, and FIGS. 8 to 10 are cross-sectional explanatory diagrams showing other embodiments. DESCRIPTION OF SYMBOLS 1... Fixed member, 2... Lever shaft, 3... Operation lever, 4... Friction mechanism, 5... Positioning member,
51... Engaging portion, 6... Engaging body, 7... Positioning mechanism,
8...Operating mechanism.

Claims (1)

【特許請求の範囲】[Claims] 1 固定部材にレバー軸を介して操作レバーを回
動可能に支持し、前記レバーの操作で変速機を作
動させる如くした変速操作装置であつて、前記レ
バーに、前記変速機の復帰ばねに対抗する回動抵
抗を与えるフリクシヨン機構と、前記変速機の変
速段位を設定する複数の係合部をもつ位置決め部
材と、前記係合部の少なくとも一つに係合する係
合体とから成る前記レバーの位置決め機構と、該
位置決め機構の前記位置決め部材と係合体との一
方を他方に対し変位させ、前記位置決め部材と係
合体との係合位置と非係合位置とを選択する操作
機構とを備えていることを特徴とする変速操作装
置。
1 A speed change operation device in which an operating lever is rotatably supported on a fixed member via a lever shaft, and a transmission is actuated by operation of the lever, and the lever is provided with a mechanism that opposes a return spring of the transmission. The lever includes a friction mechanism that provides rotational resistance, a positioning member having a plurality of engaging parts that sets the gear position of the transmission, and an engaging body that engages at least one of the engaging parts. a positioning mechanism; and an operation mechanism for displacing one of the positioning member and the engaging body of the positioning mechanism relative to the other and selecting an engaged position and a non-engaged position between the positioning member and the engaging body. A speed change operation device characterized by:
JP6716384A 1984-04-03 1984-04-03 Speed variation operating device Granted JPS60209377A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP6716384A JPS60209377A (en) 1984-04-03 1984-04-03 Speed variation operating device
US06/665,941 US4751850A (en) 1984-04-03 1984-10-29 Speed change operating device for a bicycle
DE8484308002T DE3481505D1 (en) 1984-04-03 1984-11-19 CONTROL DEVICE FOR A BICYCLE GEAR.
EP84308002A EP0157983B1 (en) 1984-04-03 1984-11-19 Speed change operating device for a bicycle
US07/079,465 US4815330A (en) 1984-04-03 1987-07-30 Speed change operating device for a bicycle
US07/259,145 US4930368A (en) 1984-04-03 1988-10-18 Speed change operating device for a bicycle
US07/260,058 US4919004A (en) 1984-04-03 1988-10-20 Speed change operating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6716384A JPS60209377A (en) 1984-04-03 1984-04-03 Speed variation operating device

Publications (2)

Publication Number Publication Date
JPS60209377A JPS60209377A (en) 1985-10-21
JPS6215396B2 true JPS6215396B2 (en) 1987-04-07

Family

ID=13336947

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6716384A Granted JPS60209377A (en) 1984-04-03 1984-04-03 Speed variation operating device

Country Status (1)

Country Link
JP (1) JPS60209377A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61215190A (en) * 1985-03-20 1986-09-24 株式会社シマノ Variable speed operating device
US4699018A (en) * 1986-02-14 1987-10-13 Maeda Industries, Ltd. Bicycle speed change lever assembly
JPS62247992A (en) * 1986-04-19 1987-10-29 マエダ工業株式会社 Speed-change operating lever device for bicycle
JPS62191293A (en) * 1986-02-14 1987-08-21 マエダ工業株式会社 Speed-change operation lever device for bicycle
JPH0226797Y2 (en) * 1986-02-14 1990-07-20

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4924829U (en) * 1972-06-08 1974-03-02

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58190289U (en) * 1982-06-14 1983-12-17 マエダ工業株式会社 Operation lever

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4924829U (en) * 1972-06-08 1974-03-02

Also Published As

Publication number Publication date
JPS60209377A (en) 1985-10-21

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