Patent ID: 8439556
Filing Date: 2013-05-14
Classification: G04B

Abstract:
1. An escape wheel for a timepiece mechanism, including a plurality of toothed wheels, which are coaxial, pivot synchronously about a pivot axis and include at least a first toothed impulse wheel in a first impulse plane and at least a second toothed release wheel in a second stopping plane, parallel to or merged with the first impulse plane, wherein said second toothed release wheel includes at least one moveable gear which includes, on the one hand, at least one release tooth, radially moveable relative to said pivot axis and returned to a position of balance by first return means, and on the other hand, at least one locking tooth, returned in a first radial direction towards a stop position by second return means, and further wherein said release tooth includes drive means, arranged to cooperate, when said release tooth is driven in a second radial direction opposite to said first radial direction, with complementary drive means comprised in said locking tooth to drive said locking tooth in said second radial direction, and wherein, when said release tooth is driven in the first radial direction, said drive means is arranged to move at a distance from said complementary drive means without driving said locking tooth.