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CN1651303B 用于自行车换档机构的控制索的致动装置 有权

用于自行车换档机构的控制索的致动装置
摘要：
一种用于自行车换挡机构的控制索致动装置，其包括外壳，所述外壳用于连接自行车的车把；绕索套筒，所述绕索套筒可以在外壳中绕装置的主轴线进行角运动；第一驱动机构，该机构作用在绕索套筒上以使它在第一角方向上转动；第二驱动机构，作用在绕索套筒上以使它在与第一角方向相反的第二角方向上转动；还包括分度装置，用于以可移动的方式将绕索套筒保持在预定角位置上。分度装置包括第一反作用装置，所述第一反作用装置在第一方向上反作用于绕索套筒的转动；还包括不同于第一反作用装置的第二反作用装置，所述第二反作用装置在第二方向上反作用于绕索套筒的转动，从而实现使得对于增档和减档都可以设置主动的致动的不对称的操作。
摘要（英）：

An actuation device for a control cable for a bicycle gearshift comprises a casing, intended for the attachment to the handlebar of the bicycle, a cable-winding bush, angularly mobile in the casing about a main axis of the device, a first driving mechanism, acting on the bush to rotate it in a first angular direction, a second driving mechanism, acting on the bush to rotate it in a second angular direction opposite the first, as well as indexing means for removably holding the bush in predetermined angular positions. The indexing means comprise first countering means, to counter the rotation of the bush in the first direction, and second countering means, distinct from the first countering means, to counter the rotation of the bush in the second direction. Asymmetric operation is thus obtained which allows active actuation to be set both for upward gearshifting and for downward gearshifting.

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