| 摘要 |
The described actuation device (100) comprises a casing (101), intended for attachment to the handlebars or to the frame of a bicycle, a cable-winding bush (104), angularly mobile in the casing (101) about a main axis (X) of the device (100), and rotatable support means of the bush in the casing. Such support means comprise a first support unit (155, 166) at an outer guide collar (145) of the cable-winding bush (104, 104', 104", 104'''), situated in an intermediate position of the bush in the direction of the main axis (X) of the device (100). An excellent distribution of the stresses between the bush (104, 104', 104", 104''') and the casing (101) is thus ensured, substantially reducing the risks of excessive deformation and breaking. |
