US 7,320,543 B2
Timepiece including a striking mechanism with instantaneous release
Eric Goeller, Les Hôpitaux Vieux (France)
Assigned to Montres Breguet S.A., L'Abbaye (Switzerland)
Filed on Dec. 14, 2006, as Appl. No. 11/610,918.
Claims priority of application No. 05112171 (EP), filed on Dec. 14, 2005.
Prior Publication US 2007/0131810 A1, Jun. 14, 2007
Int. Cl. G04F 1/00 (2006.01); G04F 3/00 (2006.01); G04B 21/00 (2006.01)
U.S. Cl. 368—100  [368/267] 18 Claims
OG exemplary drawing
 
1. A timepiece including a watch movement and a repeater striking mechanism which is automatically released by the watch movement, wherein the striking mechanism includes a release lever fitted with a click which is pivotably mounted on the release lever and which meshes with the teeth of a ratchet detent wheel such that, during automatic release, a release cam driven by the motion work of the watch movement causes the release lever to pivot towards the detent wheel and the click drives the detent wheel in rotation,
wherein the striking mechanism includes a winding cam which cooperates with an associated shoulder of the release lever to control the winding of the release lever against a spring, wherein the release lever is held in its wound position by a locking device, and wherein the release cam releases the striking mechanism by unlocking the locking device.