Patent Number: 7,613,077

Title: Alarm control mechanism

Abstract: An alarm control mechanism, which is of reduced size widthways and can trigger the striking mechanism with precision. The mechanism includes a group of coaxial wheels (1) including: an hour cam (3), which makes one revolution in 24 hours; a trigger wheel (4) provided with a pinion (6) and an external circular toothing (5), which cooperates with a striking mechanism trigger (30); a programming wheel (7) carrying a cam follower lever (8) and angularly positioned by means (25) for setting the alarm time; a retaining disc, which is called a surprise-piece (11) and is provided with a return spring (12); and a minute cam (14) that makes one revolution per hour. The lever (8) includes a pin (40), which can press against the cams (3, 14) and the surprise-piece (11), and a rack engaged on the pinion (6), such that a radial movement of the lever (8) pivots the trigger wheel (4) in relation to the programming wheel (7). The minute cam (14) includes two notches, for repeating the alarm striking mechanism after an interval of a few minutes.

Inventors: Goeller; Eric (Les Hopitaux Vieux, FR)

Assignee: Montres Breguet S.A.

International Classification: G04B 23/02 (20060101); G04B 19/00 (20060101)

Expiration Date: 1/03/02017