Movement comprising a striking device

A movement (2, 42) incorporating a striking device (4, 44) comprising a gong (10), a hammer (6, 6a, 6b, 6c, 7) rotationally mobile around a first axis of rotation (14) and a spring (12) for rotationally driving the hammer, the hammer having a body (8) with a striking beak (9) arranged in a zone at a distance from the first axis of rotation, the drive spring being arranged to be able to apply a driving force to the body of the hammer so as to cause it to rotate in a first direction that brings the striking beak closer to the gong and allows the striking beak to strike the gong, the striking device (4, 44) comprising a hammer actuating mechanism for winding the hammer from a lock position of the body of the hammer, in which the striking beak is separated from the gong, by rotating this body in a second direction, opposite to the first direction, to an end position of said body, so as to load the drive spring, and then to release the hammer so that it can strike the gong under the action of the driving force;

• wherein the striking device comprises an anti-bounce device (5, 5a, 5b, 5c, 45) which is arranged so that it can be alternately:
• in a first configuration, in which the anti-bounce device stops the body of the hammer from moving in the first direction of rotation, starting at least at a first intermediate position between the lock position and the end position of this body, before the striking beak can touch the gong, whether the latter is vibrating or not;
• and
• in a second configuration, different from the first configuration, in which the anti-bounce device does not stop the hammer from rotating in the first direction of rotation between the end position of said body and a contact position, at which the striking beak reaches the gong, provided that the anti-bounce device is in this second configuration when the body shifts through a second intermediate position between the lock position and the end position;
• the anti-bounce device does not brake the body of the hammer at least between the second intermediate position and the contact position, preferably between the end position and the contact position;
• wherein the striking device is arranged such that, after each strike, the body of the hammer is subjected to a return movement, rising at least to the first intermediate position without reaching the end position;
• and wherein the striking device is arranged such that the anti-bounce device is:
• kept in the first configuration when the hammer is locked and said body is therefore in the lock position;
• brought into the second configuration, each time the hammer is wound by the actuating mechanism or after the hammer is released before the body (8) of this hammer reaches the second intermediate position;
• then returned to the first configuration during said return movement of said body;
• and
• then remains in the first configuration until the hammer is locked again or wound again by the actuating mechanism;
• said body thus being subjected to a single, partial bounce after each strike.