The invention relates to an actuation device (10) for a control cable for a bicycle gearshift, comprising: - a casing (14), configured for fixing to bicycle handlebars, - a cable-winding bush (22), on which the control cable is wound and which is angularly mobile in the casing (14) about a main axis (A) of the device (10), - an indexing bush (26) coaxial to the cable-winding bush (22) and associated with it to removably hold the cable-winding bush (22) in predetermined angular positions, angularly spaced apart each other by predetermined indexing angles (±), - a manoeuvring mechanism (30), operative on the cable-winding bush (22) to rotate it in a first angular direction (R) about the main axis (A) of the device (10), to obtain an upward gearshifting. Between the cable-winding bush (22) and the indexing bush (26) it is provided a coupling (40) with a predetermined circumferential clearance (42) corresponding to a predetermined gearshifting extra-stroke angle (²).
ACTUATION DEVICE FOR A CONTROL CABLE FOR A BICYCLE GEARSHIFT
BETÄTIGUNGSVORRICHTUNG FÜR EINEN SEILZUG FÜR EINE FAHRRADGANGSCHALTUNG
DISPOSITIF D'ACTIONNEMENT POUR CÂBLE DE CONTRÔLE D'UN CHANGEMENT DE VITESSES DE BICYCLETTE
2016-12-07
Patent
Electronic Resource
English
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
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