Timepiece movement equipped with an inertia clutch

摘要

The movement has a centrifugal coupling mechanism with two coupling mobile parts (411, 412), where rotation of one of the mobile parts drives rotation of the other mobile part. The centrifugal coupling mechanism includes an inertial pawl secured to a hub (415) of the former mobile part and meshed with stops (416) secured to the latter mobile part. The inertial pawl is constituted by pressure levers (413) and strips (414), and the latter mobile part intermeshes with a weight pinion of an oscillating weight.