Backlash-compensating mechanism for a timepiece movement

Backlash-compensating mechanism for a timepiece movement, comprising a cam (39), an actuating member (28) bearing against the cam (39) and a wheel (33) coaxial to the cam (39) and intended to be driven by a gear train (2) of the movement, the cam (39) and the wheel (33) being connected to each other such that one revolution of the wheel (33) comprises a sequence of a first phase in which the wheel (33) drives the cam (39) whilst the co-operation between the cam (39) and the actuating member (28) cocks the latter, a second phase in which the actuating member (28) uncocks and causes the cam (39) to effect an instantaneous jump, and a third phase in which the cam (39) is immobilised and the wheel (33) continues to advance until it catches up with the cam (39) to once again drive it during the first phase of the following revolution, characterised in that it further comprises resilient means (54) acting between the cam (39) and the wheel (33) and applying a return torque to the wheel (33) during the third phase.