Patent ID: 11860583
Assignee: MANUFACTURE D'HORLOGERIE AUDEMARS PIGUET SA
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 6:
7. A chronograph mechanism with a flyback function, for a timepiece movement, comprising
at least one chronograph counter,
a transmission member capable of having a first, coupled, position, in which a kinematic link between a drive wheel of the timepiece movement and said chronograph counter is functional, and a second, uncoupled, position, in which the kinematic link is broken,
a brake that is able to move between a first position, in which the brake locks said chronograph counter, and at least one second position, in which the brake leaves said chronograph counter free to rotate,
a control unit that can be actuated by a user to alternately occupy a first state, corresponding to time measurement, and a second state, corresponding to the chronograph mechanism being stopped, said control unit being arranged to cooperate with said transmission member and with said brake to define their respective positions,
a zero-reset device,
wherein the chronograph mechanism comprises an actuating mechanism according to claim 1 in which said actuating lever performs the function of a zero-reset hammer of said zero-reset device, in relation with said chronograph counter, said actuating lever being set apart from said chronograph counter in the actuating lever's inactive position, and cooperating with said chronograph counter in the actuating lever's active position, in order to place said chronograph counter in a predefined configuration, and
wherein said control member is capable of acting on said transmission member and on said brake, to shift them to their second position, in response to the pressure applied to said control lever by the user.