Actuation device for a control cable for a bicycle gearshift

Abstract

A bicycle control cable actuation device having: a casing, configured for fixing to bicycle handlebars, a cable-winding bush, on which the control cable is wound and which is angularly mobile in the casing about a main axis (A) of the device, an indexing bush that is coaxial to and associated with the cable-winding bush to removably hold the cable-winding bush in predetermined positions that are angularly spaced from each other by predetermined indexing angles (α), a manoeuvring mechanism, operative on the cable-winding bush to rotate it in a first angular direction (R) about the main axis (A) of the device, to obtain an upward gearshifting; and, a predetermined circumferential clearance corresponding to a predetermined gearshifting extra-stroke angle (β) is provided between the cable-winding bush and the indexing bush.

Dependencies are inferred from the claim text.