ANNUAL DATA MECHANISM FOR A TIMEPIECE MOVEMENT

摘要

This mechanism comprises a data runner (1), a months satellite (11) with five teeth on a pitch for twelve, secured to the data runner (1), a fixed planetary toothset (9) and a drive member (3) for driving the data runner (1) comprising two drive fingers (3a, 3b), the first intersecting the path of the toothset of the data runner (1), the second intersecting the path of the toothset of the months satellite (11). The latter is connected to the planetary toothset (9) by a second satellite (10) secured to it and the number of teeth of which is equal to a multiple of twelve, the number of teeth of the planetary toothset (9) being chosen so that one of the five teeth of the months satellite (11) is aligned with the axes of the satellites (10, 11), of the drive member (3) and of the data runner (1) on the 30th of each month comprising less than 31 days.