JPS6037494U

JPS6037494U - Bicycle gear shift lever

Info

Publication number: JPS6037494U
Application number: JP12985883U
Authority: JP
Inventors: 三村　康夫
Original assignee: 丸石自転車株式会社
Priority date: 1983-08-24
Filing date: 1983-08-24
Publication date: 1985-03-15
Also published as: JPH0139273Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の自転車用変速レバーの斜面図、第２図は
この考案に係る自転車用変速レバーの斜面図、第３図は
同上変速レバーのハウジング内平面図、第４図は同上の
正面図、第５図は同上の左側面図、第６図は第２カム部
材の係止部を示す同上の右側面図、第７図は同じ（係止
部の要部を示す斜面図、第８図は第１カム部材と第２カ
ム部材の関係を示すもので、第８図ａは第１カム部材の
回動に伴い第２カム部材が第２スプリングの弾性に抗し
て回動させられる状態を示す図、第８図すは第２カム部
材の係止部内側に設けた係止面にピンを係止して第１カ
ム部材の回動を係留する状態を示す図、第８図Ｃはピン
の係止面における係止を解放して第１カム部材が第１ス
プリングの附勢に従って回動する状態を示す図である。３・・・基板、７・・・ワイヤー、８・・・第１カム部
材、１０・・・第１スプリング、１５・・・操作レバー
、１６・・・第２カム部材、１８・・・第２スプリング
、２０・・・係止部、２１・・・ピン、２２・・・係止
面。Figure 1 is a slope view of a conventional bicycle gear shift lever, Figure 2 is a slope view of a bicycle gear shift lever according to this invention, Figure 3 is a plan view of the interior of the housing of the same gear lever, and Figure 4 is a front view of the same as above. Figure 5 is a left side view of the same as above, Figure 6 is a right side view of the same as above showing the locking part of the second cam member, and Figure 7 is the same (slope view showing the main part of the locking part, Figure 8 shows the relationship between the first cam member and the second cam member, and Figure 8a shows the relationship between the first cam member and the second cam member when the second cam member rotates against the elasticity of the second spring. FIG. 8 is a diagram showing a state in which the pin is locked to the locking surface provided inside the locking portion of the second cam member to lock the rotation of the first cam member, FIG. Figure C is a diagram showing a state in which the locking surface of the pin is released and the first cam member rotates according to the bias of the first spring. 3... Board, 7... Wire, 8 ...First cam member, 10... First spring, 15... Operation lever, 16... Second cam member, 18... Second spring, 20... Locking part, 21... ...Pin, 22...Locking surface.

Claims

[Scope of utility model registration request]

a first cam member connected to one end of a wire connected to a two-speed internal transmission and pivoted to a substrate so as to be biased in a normal direction of the transmission by a first spring; a second cam member adjacent to the first cam member and pivotally attached to the substrate via a second spring so as to be biased in the same direction as the first cam member; An operating lever and a pin are provided, and the second cam member is provided with a locking portion for the pin, and the locking portion has an inner peripheral portion having a curved locking surface, and a first cam member on the other half thereof. When the cam member rotates against the elasticity of the first spring, a sliding surface that collides with the pin and causes the second cam member to rotate against the elasticity of the second spring, and a guide for the pin on the other half. an outer peripheral portion having a surface, and when the first cam member is rotated by the operating lever against the elasticity of the first spring, the second cam member is rotated against the elasticity of the second spring; At the same time, when the pin is guided to a locking surface provided on the inner periphery of the locking portion and the operating lever is further actuated in the same direction, the locking of the pin is released by the locking surface. Shift control lever for bicycles