| 摘要 |
A cable adjustment device (12, 20) changes the effective length or tension of a control cable (14, 22) which extends between an actuating mechanism (16, 24) and a device (18, 26) to be operated thereby. In the case of a bicycle (10), the cable adjustment device (12, 20) is coupled to a bicycle actuating mechanism (16, 24) such as a brake lever (32) or a shifter to control a brake (18) or a derailleur (26). The actuating mechanism (16, 18) has a base or stationary member (30) and a movable member (32) coupled to the base member (30) for moving the control cable (14, 22). In the preferred embodiment, the cable adjustment device (12, 20) is coupled to the base member (30). Specifically, a cable guide portion (50) with an internal threaded bore (52) is integrally formed with the base member (30). This bore (52) threadedly receives an adjusting member (40) which engages the outer casing (14a) of the control cable (14, 22). A torsion spring (42) is coupled between the adjusting member (40) and the cable guide portion (50) to restrict rotational movement therebetween. Specifically, the adjusting member (40) has one or more longitudinally extending channels (80, 82) which are selectively engaged by a curved portion (95) of the torsion spring (42) to control the rotational movement of the adjusting member (40). <IMAGE> |
