Chronograph reset system

A system for resetting a chronograph timepiece, which is provided with a chronograph counting geartrain, which comprises at least a minute counter having a minute wheel set (4), and a seconds counter, which comprises a chronograph wheel set, the minute wheel set including a heart-piece, constituting a cam shape, mounted on a central axis of the minute wheel set and the chronograph wheel set including a heart-piece mounted on a central axis of the chronograph wheel set, the system comprising a hammer held blocked by a blocking means and able to be displaced from an inactive position, where the hammer is blocked by the blocking means, and an active position, when the hammer is unblocked, for resetting the chronograph in contact with the various heart-pieces of the wheel sets,

• the system comprising a flexible element connected between a reset control means and the hammer used for resetting the chronograph, the flexible element being configured so as to store energy during a displacement of the control means before unblocking the hammer by the blocking means to be able, when the hammer is unblocked, to restore this stored energy and drive the hammer to reset the chronograph,
• wherein the hammer is mounted in translation with a first longitudinal opening and a second longitudinal opening wherein are placed fixed rods, including a first screw in the first longitudinal opening of the hammer and a second screw in the second longitudinal opening of the hammer, the hammer displacing rectilinearly from the inactive position to the active reset position, the two screws being screwed into threads provided for this purpose on a base or a frame or a plate of the timepiece.