JPH0671917B2 - Gear change operation device - Google Patents
Gear change operation deviceInfo
- Publication number
- JPH0671917B2 JPH0671917B2 JP60045151A JP4515185A JPH0671917B2 JP H0671917 B2 JPH0671917 B2 JP H0671917B2 JP 60045151 A JP60045151 A JP 60045151A JP 4515185 A JP4515185 A JP 4515185A JP H0671917 B2 JPH0671917 B2 JP H0671917B2
- Authority
- JP
- Japan
- Prior art keywords
- operating
- positioning
- spring
- operating body
- engaging
- 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 - Lifetime
Links
Landscapes
- Forklifts And Lifting Vehicles (AREA)
- Lifting Devices For Agricultural Implements (AREA)
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
- Gear-Shifting Mechanisms (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 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、自転車フレームなどに固定する固定部材に、該固
定部材に対し回転自由に支持し、リターンばねをもつ変
速機を前記ばねの付勢方向と逆方向への往動操作と前記
ばねの付勢方向と同方向への復動操作とにより作動させ
る操作体とを備え、この操作体の操作により変速機を作
動させ、所定の変速段位に変速する如くした変速操作装
置に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention mainly relates to a gear shift operating device used for a bicycle, and more specifically, to a fixing member that is fixed to a bicycle frame or the like, and is rotatably supported with respect to the fixing member. An operating body that operates a transmission having a return spring by a forward operation in a direction opposite to the biasing direction of the spring and a returning operation in the same direction as the biasing direction of the spring; The present invention relates to a gear shift operation device that operates a transmission to shift gears to a predetermined gear position.
（従来の技術） 従来、此種変速操作装置として、実開昭57−111698号公
報に示されている如く、前記操作体と連動して回転し、
前記変速機の変速段位を設定する複数の係合部をもった
位置決め体と、前記固定部材に支持し、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位置決め機構
を設けて、この位置決め機構により前記操作体を変速段
位位置に確実に位置決めする如く成したものが知られて
いる。(Prior Art) Conventionally, as a gear shift operating device of this type, as described in Japanese Utility Model Laid-Open No. 57-111698, it rotates in conjunction with the operating body,
A positioning mechanism including a positioning body having a plurality of engaging portions for setting the shift position of the transmission and an engaging body supported by the fixing member and engaging with at least one of the engaging portions is provided. It is known that the operating body is surely positioned at the gear position by this positioning mechanism.
（発明が解決しようとする問題点） 所が、以上の如く位置決め機構を採用した場合、前記位
置決め体に、前記変速機のリターンばねの付勢力に打勝
つ大きさの抵抗を付与して、位置決め状態を確実に維持
できるようにする必要があるため、前記操作体を、前記
リターンばねの付勢方向と逆方向に往動操作する場合、
該操作体を、前記位置決め体の抵抗と前記リターンばね
の付勢力とを加算した力よりも大きい力で操作しなけれ
ばならず、操作性が非常に悪かったのである。(Problems to be solved by the invention) However, when the positioning mechanism is adopted as described above, the positioning body is provided with a resistance large enough to overcome the biasing force of the return spring of the transmission. Since it is necessary to reliably maintain the state, when operating the operating body in the forward direction in the direction opposite to the biasing direction of the return spring,
The operating body had to be operated with a force larger than the sum of the resistance of the positioning body and the biasing force of the return spring, and the operability was very poor.
本発明の目的は、従来の変速操作装置において、操作体
を変速機のリターンばねの付勢方向と逆方向に往動操作
して変速機を作動させる場合に操作性が悪い問題点を解
消しようとするもので、前記リターンばねの付勢方向と
逆方向に付勢する補正ばねを設けて、操作体を往動操作
する場合に必要な操作力を小さくし、軽く変速操作でき
るようにしたのである。SUMMARY OF THE INVENTION It is an object of the present invention to solve the problem of poor operability in a conventional shift operating device when the transmission is operated by moving the operating body forward in the direction opposite to the biasing direction of the return spring of the transmission. Therefore, by providing a correction spring for urging the return spring in a direction opposite to the urging direction of the return spring, the operation force required when the operation body is operated in the forward direction is reduced, and the shift operation can be performed lightly. is there.
（問題点を解決するための手段） しかして、本発明は、固定部材（２）と該固定部材
（２）に対し回転自由に支持し、リターンばねをもつ変
速機を前記ばねの付勢方向と逆方向への往動操作と前記
ばねの付勢方向と同方向への復動操作とにより作動させ
る操作体（３）と、該操作体（３）と連動して回転し、
前記変速機の変位段位を設定する位置決め体（41）を備
えた位置決め機構（４）とを有する変速操作装置であっ
て、前記位置決め体（41）と前記固定部材（２）との間
に、前記位置決め体（41）を前記変速機のばねの付勢方
向と逆方向に付勢する補正ばね（６）を設けたものであ
る。(Means for Solving the Problems) In the present invention, therefore, a fixed member (2) and a transmission having a return spring rotatably supported with respect to the fixed member (2) are provided in the biasing direction of the spring. And an operating body (3) that is operated by a forward moving operation in the opposite direction and a backward moving operation in the same direction as the biasing direction of the spring, and rotates in conjunction with the operating body (3),
A shift operation device having a positioning mechanism (4) having a positioning body (41) for setting the displacement stage of the transmission, wherein the positioning operation body (41) is provided between the positioning body (41) and the fixing member (2). A correction spring (6) for biasing the positioning body (41) in a direction opposite to the biasing direction of the spring of the transmission is provided.
（作用） ターンばねの付勢方向と逆方向に往動操作する場合、該
操作体（３）に前記補正ばね（６）の付勢力が作用し
て、この操作体（３）の操作力は前記リターンばねの付
勢力から補正ばね（６）の付勢力を差引いた力に、位置
決め体（41）の回転抵抗を加算した力となり、前記補正
ばね（６）のない従来のものに比べて補正ばね（６）の
付勢力相当分だけ小さくなるのである。(Operation) When the forward operation is performed in the direction opposite to the biasing direction of the turn spring, the biasing force of the correction spring (6) acts on the operating body (3), and the operating force of the operating body (3) is The force obtained by subtracting the urging force of the correction spring (6) from the urging force of the return spring is added to the rotational resistance of the positioning body (41) to obtain a correction compared with the conventional one without the correction spring (6). That is, it becomes smaller by the amount corresponding to the biasing force of the spring (6).
又、前記操作体（３）と位置決め体（41）との連動部に
隙間（Ｋ）を設けることにより、操作体（３）を位置決
め体（41）に対し所定量以上過剰回転して変速すること
ができるのであり、又、往動操作後、操作体（３）は、
前記補正ばね（６）の影響を受けることなく、前記リタ
ーンばねの付勢力により前記位置決め体（41）に対し前
記隙間（Ｋ）量だけ前記リターンばねの付勢力により復
帰するのである。Further, by providing a gap (K) in the interlocking portion between the operating body (3) and the positioning body (41), the operating body (3) is excessively rotated by a predetermined amount or more with respect to the positioning body (41) to shift gears. After the forward operation, the operating body (3) is
The biasing force of the return spring returns the positioning body (41) by the biasing force of the return spring by the amount of the gap (K) without being affected by the correction spring (6).
（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。Embodiment An embodiment of the device of the present invention will be described below with reference to the drawings.
第１図に示した変速操作装置は、自転車の後ハブに装着
する多段スプロケット装着（図示せず）及びこの多段ス
プロケット装置における一つのスプロケットにチェンを
掛換える変速機（図示せず）と共に用いる変速操作装置
であって、自転車のフレームに溶接する直付台座（１）
或いはバンド部材などの固定手段を介して固定する固定
部材（２）と、この固定部材（２）に回転自在に支持
し、リターンばねをもつ変速機を前記ばねの付勢方向と
逆方向への往動操作と前記ばねの付勢方向と同方向への
復動操作とにより作動させる操作体（３）と、該操作体
（３）の位置決め機構（４）とを備え、前記操作体
（３）を前記変速機のリターンばねの付勢方向と逆方向
に往動操作することにより、前記変速機のチェン案内具
で案内するチェンを多段スプロケット装置におけるトッ
プ側スプロケットからロー側スプロケットに掛換え、ま
た、前記操作体（３）を前記リターンばねの付勢方向と
同方向に復動操作することにより前記チェン案内具を前
記リターンばねの付勢力で復動させて、前記チェンをロ
ー側スプロケットからトップ側スプロケットに掛換える
如く構成されている。The gear shift operating device shown in FIG. 1 is used with a multistage sprocket attachment (not shown) attached to a rear hub of a bicycle and a transmission (not shown) for changing a chain to one sprocket in the multistage sprocket device. An operating device that is a direct mount for welding to a bicycle frame (1)
Alternatively, a fixing member (2) that is fixed via a fixing member such as a band member and a transmission that is rotatably supported by the fixing member (2) and has a return spring are provided in a direction opposite to the biasing direction of the spring. The operating body (3) includes an operating body (3) which is operated by a forward moving operation and a returning operation in the same direction as the biasing direction of the spring, and a positioning mechanism (4) for the operating body (3). ) Is forwardly operated in the direction opposite to the biasing direction of the return spring of the transmission, the chain guided by the chain guide of the transmission is changed from the top sprocket to the low sprocket in the multi-stage sprocket device. Further, the chain guide is returned by the biasing force of the return spring by moving the operating body (3) back in the same direction as the biasing direction of the return spring, and the chain is moved from the low side sprocket. To It is as configuration replace hanging on the flop side sprocket.
尚、前記リターンばねは、前記操作体（３）の往動操作
量の増大に伴ない付勢力が大となり、前記操作体（３）
の往動操作に必要な操作力も増大する。The return spring has a large urging force as the forward movement amount of the operating body (3) increases, and the operating body (3)
The operating force required for the forward operation of the vehicle also increases.
又、図示した実施例では、前記固定部材（２）は、前記
操作体（３）を支持する大径軸部（21）と、該大径軸部
（21）に段部を介して連続する中径軸部（22）と、該中
径軸部（22）に段部を介して連続する小径軸部（23）と
を備えた円筒状に形成している。又、図示した実施例で
は、前記操作体（３）は、貫通孔をもった円筒状のボス
部（31）と、このボス部（31）の一側から径方向外方に
延びる操作部（図示せず）とによりレバー形状に掛設し
て、前記貫通孔の一端開口部に、前記大径軸部（21）に
嵌合する嵌合部を設けている。In the illustrated embodiment, the fixing member (2) is continuous with the large-diameter shaft portion (21) supporting the operating body (3) and the large-diameter shaft portion (21) via a step. It is formed in a cylindrical shape including a medium diameter shaft portion (22) and a small diameter shaft portion (23) continuous with the middle diameter shaft portion (22) via a step. Further, in the illustrated embodiment, the operating body (3) has a cylindrical boss portion (31) having a through hole, and an operating portion extending radially outward from one side of the boss portion (31). (Not shown), it is hooked in a lever shape, and a fitting portion that fits into the large-diameter shaft portion (21) is provided at one end opening portion of the through hole.
又、前記位置決め機構（４）は、前記変速機の変速段位
に相当する複数の係合部（41a）をもった位置決め体（4
1）と前記係合部（41a）の一つに係合する係合体（42）
とから成り、前記位置決め体（41）を前記小径軸部（2
3）に回転自由に支持し、又、前記係合体（42）を、板
ばね（５）を介して前記固定部材（２）に支持してお
り、又、前記ばね（５）により前記係合体（42）を前記
係合部（41a）方向に付勢し、勢記位置決め体（41）の
回転に抵抗を与えている。Further, the positioning mechanism (4) has a positioning body (4) having a plurality of engaging portions (41a) corresponding to the gear position of the transmission.
1) and an engaging body (42) that engages with one of the engaging portions (41a)
And the positioning body (41) is connected to the small diameter shaft portion (2
3) is rotatably supported, and the engaging body (42) is supported by the fixing member (2) through a leaf spring (5), and the engaging body is supported by the spring (5). The (42) is biased toward the engaging portion (41a) to give resistance to the rotation of the urging position determining body (41).
又、前記ボス部（31）の貫通孔内周面と前記位置決め体
（41）の外周部一側面との一方に複数個の係合凹部（3
2）を、また他方に前記係合凹部（32）と係合する係合
突起（43）を設けて、前記位置決め体（41）を前操作体
（３）の回転に連動させるようにしている。Further, a plurality of engaging recesses (3) are formed on one of the inner peripheral surface of the through hole of the boss portion (31) and one side surface of the outer peripheral portion of the positioning body (41).
2), and on the other hand, an engaging protrusion (43) for engaging with the engaging recess (32) is provided so that the positioning body (41) is interlocked with the rotation of the front operating body (3). .
しかして、第1,2図に示した実施例では、前記位置決め
体（41）と前記固定部材（２）との間に、前記位置決め
体（41）を前記変速機のリターンばねの付勢方向と逆方
向に付勢する補正ばね（６）を設けて、この補正ばね
（６）により前記操作体（３）の往動操作時に必要な操
作力を小さくできるようにしたのである。Therefore, in the embodiment shown in FIGS. 1 and 2, the positioning body (41) is provided between the positioning body (41) and the fixing member (2) in the biasing direction of the return spring of the transmission. A correction spring (6) for urging in the opposite direction is provided, and the correction spring (6) can reduce the operation force required during the forward movement operation of the operation body (3).
以上の構成において、前記補正ばね（６）は、コイルば
ねから成り、この補正ばね（６）を、前記ボス部（31）
の貫通孔内周面と前記中径軸部（22）外周面との間の空
間に挿入して、その一端を前記位置決め体（41）に、ま
た他端を前記大径軸部（21）と中径軸部（22）との間の
段部にそれぞれ係止するのである。In the above structure, the correction spring (6) is formed of a coil spring, and the correction spring (6) is connected to the boss portion (31).
Is inserted into the space between the inner peripheral surface of the through hole and the outer peripheral surface of the intermediate diameter shaft portion (22), and one end thereof is the positioning body (41) and the other end is the large diameter shaft portion (21). And the step portion between the medium diameter shaft portion (22).
又、この補正ばね（６）は、前記操作体（３）の往動操
作量の増大に伴ない付勢力が減少するのである。Further, the biasing force of the correction spring (6) decreases as the amount of forward movement of the operating body (3) increases.
又、前記位置決め体（41）は、前記小径軸部（23）に嵌
合する貫通孔をもった略円板状に形成して、その一側面
に、前記係合部（41a）を周方向に所定間隔を置いて複
数個設けるのであり、又、この係合部（41a）より径方
向内側に、多数の凹所から成るフリクション部（44）を
周設するのである。尚、前記係係合部（41a）は、貫通
孔から成るものであるが、その他凹状であってもよい。Further, the positioning body (41) is formed in a substantially disc shape having a through hole that fits into the small diameter shaft portion (23), and the engaging portion (41a) is circumferentially formed on one side surface thereof. A plurality of friction portions (44) are formed circumferentially on the inner side in the radial direction of the engaging portion (41a). The engaging engagement portion (41a) is formed of a through hole, but may be concave.
又、前記係合体（42）は、ボールを用いるのであるが、
その他ローラを用いてもよい。Further, the engagement body (42) uses a ball,
Other rollers may be used.
又、この係合体（42）を前記係合部（41a）方向に付勢
する前記板ばね（５）は、前記固定部材（２）の小径軸
部（23）側先端に回転不能に嵌合する非円形の嵌合孔を
もった円板状に形成して、前記係合体（42）との対向部
位に、径方向に延びる長孔から成る保持部（51）を設け
て、前記係合体（42）の前記位置決め体（41）との共回
いを防いでいる。The leaf spring (5) for urging the engaging body (42) toward the engaging portion (41a) is non-rotatably fitted to the tip of the fixing member (2) on the small diameter shaft portion (23) side. Is formed in a disc shape having a non-circular fitting hole, and a holding portion (51) consisting of a long hole extending in the radial direction is provided at a portion facing the engaging body (42), and the engaging body is formed. The co-rotation of (42) with the positioning body (41) is prevented.
又、図示した変速操作装置には、前記操作体（３）の係
合凹部（32）と前記位置決め体（41）の係合突起（43）
との間に、前記操作体（３）の位置決め体（41）に対す
る回転を許容し、この操作体（３）の往動操作時、該操
作体（３）をオーバーシフト量に対応して復動させる隙
間（Ｋ）を設けて、操作体（３）を往動操作量に対し前
記隙間（Ｋ）相当量だけ前記位置決め体（41）に対しフ
リーに復動させる如く成す一方、前記位置決め機構
（４）を作動と不作動とに切換える切換体（７）と、前
記位置決め機構（４）の非作動時、前記操作体（３）の
回転にフリクションを与えるフリクション機構（８）と
を設けて、このフリクション機構（８）によるトフリク
ションにより前記操作体（３）の操作位置を維持する如
く成している。Further, in the illustrated gear shift operating device, the engaging recess (32) of the operating body (3) and the engaging projection (43) of the positioning body (41) are included.
And the rotation of the operating body (3) with respect to the positioning body (41) is allowed, and when the operating body (3) is moved forward, the operating body (3) is returned in response to the overshift amount. A gap (K) for moving is provided so that the operating body (3) is freely returned to the positioning body (41) by an amount corresponding to the gap (K) with respect to the forward operation amount. A switching body (7) for switching (4) between operation and non-operation, and a friction mechanism (8) for giving a friction to the rotation of the operating body (3) when the positioning mechanism (4) is inoperative are provided. The operation position of the operation body (3) is maintained by the friction of the friction mechanism (8).
前記フリクション機構（８）は、前記位置決め体（41）
に設けるフリクション部（44）と、前記係合体（42）及
び板ばね（５）とから成り、前記切換体（７）の操作で
前記係合体（42）を前記保持部（51）に沿って前記係合
部（41a）に対し位置決め体（41）の径方向内方に移動
させることにより係合体（42）が前記フリクション部
（44）に係合して、前記位置決め体（41）の回転、延い
ては該位置決め体（41）と連動して回転する操作体
（３）の回転に所定のフリクションを与えるようにして
いる。The friction mechanism (8) includes the positioning body (41).
A friction part (44) provided on the upper part, an engaging body (42) and a leaf spring (5), and the engaging body (42) is moved along the holding part (51) by operating the switching body (7). When the positioning body (41) is moved inward in the radial direction with respect to the engagement portion (41a), the engagement body (42) engages with the friction portion (44) to rotate the positioning body (41). Further, a predetermined friction is given to the rotation of the operating body (3) which rotates in conjunction with the positioning body (41).
又、前記切換体（７）は、前記小径軸部（23）に回転自
由に嵌合する貫通孔をもった円板部（71）と、この円板
部の外周部に設ける操作部（72）とから成り、前記円板
部（71）に、前記係合体（42）との対向部位から周方向
に向って径方向内方に延びるガイド孔（73）を設けて、
切換体（７）の回転により前記係合体（42）を保持部
（51）に沿って位置決め体（41）の径方向にのみ移動さ
せるようにしている。Further, the switching body (7) has a disc portion (71) having a through hole that is rotatably fitted in the small diameter shaft portion (23), and an operation portion (72) provided on the outer peripheral portion of the disc portion. And a guide hole (73) extending radially inward in the circumferential direction from a portion facing the engaging body (42) is provided in the disc portion (71),
The engagement body (42) is moved along the holding portion (51) only in the radial direction of the positioning body (41) by the rotation of the switching body (7).
又、図中、（９）は前記直付台座（１）に設けるねじ孔
に螺合して前記固定部材（２）を固定する締付ねじ、
（10）は前記位置決め機構（４）部分を覆うカバー、
（11）は前記板ばね（５）の押し座金である。Further, in the figure, (9) is a tightening screw that is screwed into a screw hole provided in the directly mounted pedestal (1) to fix the fixing member (2),
(10) is a cover for covering the positioning mechanism (4),
(11) is a push washer of the leaf spring (5).
以上の如く構成した変速操作装置は、既知の通り操作体
（３）のボス部（31）とリターンばねをもった変速機の
例えばリンク部材とを、操作ワイヤにより連結して前記
操作体（３）の往動操作又は復動操作により前記リンク
部材を揺動させ、チェン案内具を多段スプロケット装置
の軸方向に移動させて所定の変速段に変速するのであ
る。As is known, in the gear shift operating device configured as described above, the boss (31) of the operating body (3) and, for example, a link member of a transmission having a return spring are connected by an operating wire. ) The forward and backward movement operations of (1) cause the link member to swing to move the chain guide tool in the axial direction of the multi-stage sprocket device to shift gears to a predetermined shift speed.
しかして、前記操作体（３）を前記リターンばねの付勢
方向と逆方向に往動操作すると、先ず操作体（３）は、
隙間（Ｋ）量だけ位置決め体（41）に対し前記リターン
ばねの付勢力に抗してフリー回転し、係合凹部（32）と
係合突起（43）とが係合して、操作体（３）と位置決め
体（41）とが一体化する。尚、前記隙間（Ｋ）がない構
造のものにおいては、操作体（３）が位置決め体（41）
に対しフリー回転しないのであり、操作体（３）の回転
に連動して前記位置決め体（41）が動くのである。Then, when the operating body (3) is operated to move forward in the direction opposite to the biasing direction of the return spring, first, the operating body (3) is
The positioning body (41) rotates freely by the amount of the gap (K) against the biasing force of the return spring, and the engagement recess (32) and the engagement projection (43) are engaged with each other, so that the operating body ( 3) and the positioning body (41) are integrated. In the structure having no gap (K), the operating body (3) is the positioning body (41).
On the other hand, it does not rotate freely, and the positioning body (41) moves in conjunction with the rotation of the operating body (3).
そして、前記操作体（３）を更に往動操作すると、前記
操作ワイヤが引張られて、前記リターンばねの撓み量が
増大し、操作体（３）に作用する往動方向への付勢力が
増大すると同時に、操作体（３）は、補正ばね（６）の
付勢力により往動操作方向に付勢されるのである。When the operating body (3) is further operated in the forward direction, the operating wire is pulled, the amount of bending of the return spring is increased, and the urging force acting on the operating body (3) in the forward direction is increased. At the same time, the operating body (3) is biased in the forward operation direction by the biasing force of the correction spring (6).
従って、操作体（３）の往動操作に必要な操作力は、前
記リターンばねの付勢力（F1）から補正ばね（６）の付
勢力（F2）を差引いた力（F3）に、前記位置決め体（4
1）の回転抵抗（Ｒ）を加算した力（F3＋Ｒ）であれば
よいのである。その結果、操作体（３）を、前記付勢力
（F1）＋回転抵抗（Ｒ）の力に打勝って往動操作する必
要のあった従来のものに比べて、往動操作に必要な操作
力を、前記補正ばね（６）の付勢力相当分だけ小さくで
き、それだけ操作体（３）を軽く往動操作することがで
きるのである。Therefore, the operation force required for the forward operation of the operation body (3) is the force (F 3 ) obtained by subtracting the urging force (F 2 ) of the correction spring (6) from the urging force (F 1 ) of the return spring. , The positioning body (4
The force (F 3 + R) obtained by adding the rotational resistance (R) of 1) is sufficient. As a result, the operation body (3) is required for the forward movement operation as compared with the conventional operation body which has to overcome the force of the urging force (F 1 ) + rotational resistance (R) to perform the forward movement operation. The operating force can be reduced by an amount corresponding to the biasing force of the correction spring (6), and the operating body (3) can be lightly moved forward as much.
又、前記操作体（３）の往動操作により係合体（42）が
係合部（41a）（41a）間の境界を乗越えてロー側の係合
部と係合すると、操作体（３）は、前記隙間（Ｋ）量だ
け過剰回転することになる。そして、この過剰回転によ
り前記変速機のチェン案内具は、多段スプロケット装置
における各スプロケットに対しオーバーシフトし、該チ
ェン案内具で案内するチェンは所望のスプロケットに掛
換えられるのである。When the engaging body (42) crosses the boundary between the engaging portions (41a) and (41a) and engages with the low side engaging portion by the forward operation of the operating body (3), the operating body (3) Will over-rotate by the amount of the gap (K). Due to this excessive rotation, the chain guide of the transmission is overshifted with respect to each sprocket in the multi-stage sprocket device, and the chain guided by the chain guide is replaced with a desired sprocket.
次に、前記操作体（３）の操作力を釈放すると、前記補
正ばね（６）の付勢力が操作体（３）に作用しなくな
り、該操作体（３）は、前記リターンばねの付勢力によ
り前記位置決め体（41）に対し前記隙間（Ｋ）相当量フ
リーに復動し、前記位置決め機構（４）で設定した適正
位置に保持されるものである。又、前記チェン案内具も
前記操作体（３）のフリー復動量に対応して復動し、所
望のスプロケットに対し適正位置に停止するのである。Next, when the operating force of the operating body (3) is released, the biasing force of the correction spring (6) ceases to act on the operating body (3), and the operating body (3) is biased by the return spring. By this means, the positioning body (41) is freely moved back by an amount corresponding to the gap (K), and is held at the proper position set by the positioning mechanism (4). Further, the chain guide tool also returns in response to the free return amount of the operating body (3) and stops at the proper position with respect to the desired sprocket.
又、前記操作体（３）を前記リターンばねの付勢方向と
同方向に復動操作する場合は、前記往動操作時の場合と
同様、前記リターンばねの付勢力（F1）から補正ばね
（６）の付勢力（F2）を差引いた力（F3）に位置決め体
（41）の回転抵抗（Ｒ）を加算した力（F3＋Ｒ）で復動
操作することができるのである。Further, when the operating body (3) is operated to return in the same direction as the biasing direction of the return spring, the biasing force (F 1 ) of the return spring is used to correct the correction spring, as in the case of the forward operation. The reciprocating operation can be performed by the force (F 3 + R) obtained by adding the rotational resistance (R) of the positioning body (41) to the force (F 3 ) obtained by subtracting the urging force (F 2 ) of (6).
この場合、操作体（３）を、リターンばねの付勢力
（F1）から前記位置決め体（41）の回転抵抗（Ｒ）を差
引いた力で往動操作することができた従来のものに比べ
て、復動操作に必要な操作力は、前記補正ばね（６）の
付勢力（F2）相当分だけ大きくなるが、そもそも復動操
作に必要な操作力は往動操作に必要な操作力に対し非常
に小さかったのであるから、復動操作に必要な操作力が
前記補正ばね（６）の付勢力相当分だけ大きくなって
も、操作性が悪くなることはないのである。In this case, the operating body (3) can be moved forward by a force obtained by subtracting the rotational resistance (R) of the positioning body (41) from the urging force (F 1 ) of the return spring. The operation force required for the backward movement operation is increased by an amount corresponding to the biasing force (F 2 ) of the correction spring (6), but the operation force required for the backward movement operation is originally required for the forward movement operation. Since it was very small, the operability does not deteriorate even if the operation force required for the backward movement operation is increased by the amount corresponding to the biasing force of the correction spring (6).
又、前記位置決め機構（４）の作動体制からフリクショ
ン機構（８）の作動体制に切換える場合は、切換体
（７）を第２図において時計方向に回動するのであっ
て、この切換体（７）の操作力が、ガイド孔（73）から
係合体（42）に作用し、該係合体（42）が、板ばね
（５）の保持部（51）に沿って位置決め体（41）の径方
向内方側に移動し、係合体（42）の係合部（41a）との
係合が離脱して位置決め機構（４）が作動不能となる一
方、前記係合体（42）がフリクション部（44）に係合
し、この係合によりフリクション部（44）に所定のフリ
クションが与えられて、フリクション機構（８）が作動
する体制となるのである。When switching from the operating system of the positioning mechanism (4) to the operating system of the friction mechanism (8), the switching body (7) is rotated clockwise in FIG. ) Acts on the engaging body (42) from the guide hole (73), and the engaging body (42) moves along the holding portion (51) of the leaf spring (5) to the diameter of the positioning body (41). In the direction inward, the engagement body (42) disengages from the engagement portion (41a) and the positioning mechanism (4) becomes inoperable, while the engagement body (42) causes the friction portion ( The friction mechanism (8) is engaged with the friction mechanism (8) by a predetermined friction being applied to the friction portion (44).
従って、このフリクション機構（８）を作動させて、操
作体（３）を操作することができるのであり、又、この
操作体（３）の操作位置を前記フリクション機構（８）
により維持することができるのである。Therefore, the operating body (3) can be operated by operating the friction mechanism (8), and the operating position of the operating body (3) can be set to the friction mechanism (8).
Can be maintained by.
又、フリクション機構（８）の作動体制から位置決め機
構（４）の作動体制に切換える場合は、前記切換体
（７）を第７図において反時計方向に回動するのであっ
て、この切換体（７）の操作力が、ガイド孔（73）から
係合体（42）に作用し、該係合体（42）が板ばね（５）
の保持部（51）に沿って位置決め体（41）の径方向外方
側に移動し、この係合体（42）のフリクション部（44）
との係合が離脱して、フリクション機構（８）が作動不
能となる一方、前記係合体（42）が係合部（41a）に係
合し、位置決め機構（４）は作動体制となるのである。Further, when switching from the operating system of the friction mechanism (8) to the operating system of the positioning mechanism (4), the switching body (7) is rotated counterclockwise in FIG. The operation force of 7) acts on the engaging body (42) from the guide hole (73), and the engaging body (42) causes the leaf spring (5).
Of the positioning body (41) along the holding portion (51) of the positioning body (41) in the radial direction, and the friction portion (44) of the engaging body (42).
Since the friction mechanism (8) becomes inoperable due to the disengagement from the engagement mechanism (8), the engagement body (42) engages with the engagement portion (41a), and the positioning mechanism (4) is in the operating system. is there.
又、位置決め機構（４）における位置決め体（41）及び
係合体（42）を利用し、前記位置決め体（41）にフリク
ション部（44）を設け、このフリクション部（44）に前
記係合体（42）を係合させる如く成したから、フリクシ
ョン機構（８）の構造を非常に簡単にでき、このフリク
ション機構（８）を備えた装置を小形化できるのであ
る。Further, the positioning body (41) and the engaging body (42) in the positioning mechanism (4) are used to provide a friction portion (44) on the positioning body (41), and the engaging body (42) is provided on the friction portion (44). ) Is engaged, the structure of the friction mechanism (8) can be made very simple, and the device provided with this friction mechanism (8) can be miniaturized.
尚、以上説明した実施例では、操作体（３）に連動して
回転する位置決め体（41）を、複数の係合部（41a）を
もった板状に形成したが、その他、少なくとも一つの転
動体を支持した板状或いは少なくとも一つの係合突起を
もった板状に形成してもよいのであって、その構造は特
に限定されるものでない。要は、操作体（３）と連動し
て回転し、変速機の変速段位を設定することができる構
造であればよい。又、位置決め体（41）を、前記転動体
或いは係合突起をもった形状に形成する場合、この位置
決め体の転動体或いは係合突起に係合する複数の係合部
を固定部材（２）側に設けるのである。In addition, in the embodiment described above, the positioning body (41) that rotates in conjunction with the operating body (3) is formed in a plate shape having a plurality of engaging portions (41a). It may be formed in a plate shape supporting the rolling elements or a plate shape having at least one engaging projection, and its structure is not particularly limited. In short, any structure may be used as long as it rotates in conjunction with the operating body (3) and can set the gear position of the transmission. Further, when the positioning body (41) is formed in a shape having the rolling element or the engaging projection, a plurality of engaging portions that engage with the rolling element or the engaging projection of the positioning body are fixed to the fixing member (2). It is provided on the side.
又、以上の実施例では、操作体（３）と位置決め体（4
1）との間に隙間（Ｋ）を設けたが、この隙間（Ｋ）は
必らずしも必要でない。Further, in the above embodiments, the operating body (3) and the positioning body (4
Although a gap (K) is provided between the above and 1), this gap (K) is not absolutely necessary.
又、本発明の装置は、リヤ側変速機用として使用する
他、フロント側変速機用として使用してもよい。The device of the present invention may be used not only for the rear transmission but also for the front transmission.
（発明の効果） 以上の如く本発明は、前記操作体（３）と連動して回転
し、変速機の変速段位を設定する位置決め体（41）、前
記操作体（３）を回転自由に支持する固定部材（２）と
の間に、前記位置決め体（41）を前記変速機のリターン
ばねの付勢方向と逆方向に付勢する補正ばね（６）を設
けたから、前記操作体（３）を前記リターンばねの付勢
方向と逆方向に往動操作する場合、該操作体（３）に前
記補正ばね（６）の付勢力が作用して、操作体（３）の
往動操作に必要な操作力は、前記リターンばねの勢力か
ら補正ばね（６）の付勢力を差引いた力に、前記位置決
め体（41）の回転抵抗を加算した力であればよいのであ
り、従って、前記リターンの付勢力に前記位置決め体
（41）の回転抵抗を加算した力に打勝って往動操作する
必要のあった従来のものに比べて前記補正ばね（６）の
付勢力相当分だけ小さくでき、それだけ操作体（３）を
軽く往動操作することができるのである。(Effects of the Invention) As described above, the present invention rotatably supports the positioning body (41) that rotates in conjunction with the operating body (3) and sets the gear shift stage of the transmission, and the operating body (3). A correction spring (6) for urging the positioning body (41) in a direction opposite to the urging direction of the return spring of the transmission is provided between the fixing member (2) and the operating body (3). When the forward movement is performed in the direction opposite to the urging direction of the return spring, the urging force of the correction spring (6) acts on the operating body (3) and is required for the forward movement operation of the operating body (3). The operation force may be a force obtained by adding the rotational resistance of the positioning body (41) to the force obtained by subtracting the biasing force of the correction spring (6) from the force of the return spring. It is necessary to overcome the force obtained by adding the rotational resistance of the positioning body (41) to the urging force to perform the forward operation. Tsu compared with the conventional ones can be reduced by the biasing force equivalent of the correction spring (6), it is possible to forward gently operate correspondingly operating body (3).
又、実施例の如く操作体（３）と位置決め体（41）との
連動部に隙間（Ｋ）を設けることにより、操作体（３）
を位置決め体（41）に対し所定量以上過剰回転して変速
することができながら、しかも、変速操作後、前記操作
体（３）を前記補正ばね（６）の影響を受けることな
く、その操作量に対し前記隙間量だけ確実に復動させる
ことができるのである。Further, by providing a gap (K) in the interlocking portion between the operating body (3) and the positioning body (41) as in the embodiment, the operating body (3)
Can perform gear shifting by rotating the positioning body (41) excessively by a predetermined amount or more, and yet, after the gear shifting operation, the operating body (3) is operated without being affected by the correction spring (6). It is possible to reliably move back by the gap amount with respect to the amount.
第１図は本発明装置の一実施例を示す拡大縦断面図、第
２図は横断平面図、第３図は操作体と位置決め体との連
動部における断面図、第４図は位置決め体のみの平面
図、第５図は操作体のみの平面図、第６図及び第７図は
位置決め機構の作動体制からフリクション機構の作動体
制に切換えた場合の第１図及び第２図に対応した説明図
である。 （２）……固定部材 （３）……操作体 （４）……位置決め機構 （41）……位置決め体 （６）……補正ばね （Ｋ）……隙間FIG. 1 is an enlarged vertical sectional view showing an embodiment of the device of the present invention, FIG. 2 is a cross-sectional plan view, FIG. 3 is a sectional view of an interlocking portion between an operating body and a positioning body, and FIG. FIG. 5 is a plan view of only the operating body, and FIGS. 6 and 7 are explanations corresponding to FIGS. 1 and 2 when the operating system of the positioning mechanism is switched to the operating system of the friction mechanism. It is a figure. (2) …… Fixing member (3) …… Operating body (4) …… Positioning mechanism (41) …… Positioning body (6) …… Compensation spring (K) …… Gap
Claims (2)
回転自由に支持し、リターンばねをもつ変速機を前記ば
ねの付勢方向と逆方向への往動操作と前記ばねの付勢方
向と同方向への復動操作とにより作動させる操作体
（３）と、該操作体（３）と連動して回転し、前記変速
機の変位段位を設定する位置決め体（41）を備えた位置
決め機構（４）とを有する変速操作装置であって、前記
位置決め体（41）と前記固定部材（２）との間に、前記
位置決め体（41）を前記変速機のばねの付勢方向と逆方
向に付勢する補正ばね（６）を設けたことを特徴とする
変速操作装置。1. A fixing member (2) and a transmission, which is rotatably supported by the fixing member (2) and has a return spring, and a forward movement operation in a direction opposite to an urging direction of the spring and a movement of the spring. An operating body (3) that is actuated by a return operation in the same direction as the biasing direction, and a positioning body (41) that rotates in conjunction with the operating body (3) and sets the displacement stage of the transmission. A shift operation device having a positioning mechanism (4) provided therein, wherein the positioning body (41) is biased by a spring of the transmission between the positioning body (41) and the fixing member (2). A gear shift operating device comprising a correction spring (6) for urging in a direction opposite to the direction.
部に隙間（Ｋ）を設けたことを特徴とする特許請求の範
囲第１項記載の変速操作装置。2. The gear shift operating device according to claim 1, wherein a gap (K) is provided in an interlocking portion between the operating body (3) and the positioning body (41).
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60045151A JPH0671917B2 (en) | 1985-03-07 | 1985-03-07 | Gear change operation device |
| US06/836,420 US5020387A (en) | 1985-03-07 | 1986-03-05 | Lever shifting device for a bicycle |
| FR868603177A FR2578507B1 (en) | 1985-03-07 | 1986-03-06 | DEVICE FOR FORMING A SPEED CHANGE LEVER FOR A BICYCLE |
| DE19863607548 DE3607548A1 (en) | 1985-03-07 | 1986-03-07 | LEVER CONTROL DEVICE FOR A BICYCLE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60045151A JPH0671917B2 (en) | 1985-03-07 | 1985-03-07 | Gear change operation device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33074191A Division JPH0532190A (en) | 1991-12-13 | 1991-12-13 | Shift operation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61205586A JPS61205586A (en) | 1986-09-11 |
| JPH0671917B2 true JPH0671917B2 (en) | 1994-09-14 |
Family
ID=12711273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60045151A Expired - Lifetime JPH0671917B2 (en) | 1985-03-07 | 1985-03-07 | Gear change operation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0671917B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0711028Y2 (en) * | 1987-07-13 | 1995-03-15 | 島野工業株式会社 | Bicycle gear shift operation device |
| JP2675585B2 (en) * | 1988-07-29 | 1997-11-12 | 株式会社シマノ | Gear lever for bicycle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2467767A1 (en) * | 1979-10-19 | 1981-04-30 | Huret Roger | CONTROL KNOB FOR CYCLE DERAILLEUR |
| JPS59146322A (en) * | 1983-02-12 | 1984-08-22 | Shimano & Co Ltd | Variable speed operating device for bicycle |
-
1985
- 1985-03-07 JP JP60045151A patent/JPH0671917B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61205586A (en) | 1986-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6659895B2 (en) | Motion sensor for use with a bicycle sprocket assembly | |
| US5957002A (en) | Dual lever type derailleur gear unit for a bicycle | |
| TWI572520B (en) | Bicycle operating device | |
| US7150205B2 (en) | Handgrip shifter for a bicycle | |
| EP1674388B1 (en) | Bicycle control apparatus with a position setting idler member | |
| US4732425A (en) | Seat reclining mechanism for vehicles | |
| US4768395A (en) | Bicycle speed change lever assembly | |
| JPS61215190A (en) | Variable speed operating device | |
| US6293882B1 (en) | Operating force compensating apparatus for a bicycle transmission | |
| US5609078A (en) | High-torsion ratchet mechanism assembly for a ratchet screwdriver | |
| JPH0671917B2 (en) | Gear change operation device | |
| EP1826114B1 (en) | Assembly of a bicycle frame and a low profile derailleur | |
| US4196643A (en) | Operating lever for a bicycle derailleur | |
| US5607116A (en) | Fishing reel reversal preventive device | |
| US4829195A (en) | Starter | |
| JPH0532190A (en) | Shift operation device | |
| JPS61205585A (en) | Speed change operating device | |
| JPH0249196Y2 (en) | ||
| JP3388015B2 (en) | Support mechanism for operating lever in lever device | |
| JPS58101893A (en) | Interior finish transmission for bicycle | |
| JPH0138675Y2 (en) | ||
| JPH0333591Y2 (en) | ||
| JPS5850113Y2 (en) | Constant contact clutch release mechanism using clutch cable | |
| JPH0732991Y2 (en) | Change clutch release device for motorcycles | |
| US2844970A (en) | Transmission control external tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |