BETÄTIGUNGSVERFAHREN UND VORRICHTUNG FÜR DAS BETÄTIGUNGSSEIL EINER FAHRRADGANGSCHALTUNG

摘要

A method for carrying out gearshifting in a bicycle gearshift through an actuation device (100; 200; 300; 400) is described that comprises a mobile mechanical member (104; 204) to control the gearshift, wherein every gearshifting operation corresponds to a movement of predetermined amount of the mobile member (104; 204), characterised in that it comprises the following steps:
- active initial movement of the mobile member (104; 204) for a first amount (²1) equal to only a portion of the amount (²1+²2) of the movement corresponding to gearshifting;
- automatic final movement of the mobile member (104; 204) for a second amount (²2) equal to the remaining portion of the amount (²1+²2) of the movement corresponding to gearshifting. Devices (100; 200; 300; 400) capable of implementing such a method are also described.