Patent ID: 9645550
Date: 2017-05-09
CPC Classifications: G04B

Claim:
1. A timepiece part including: a frame supporting an energy source, a chassis comprising a support pivotably mounted inside said chassis around a first axis by a first pivoting system comprising first and second coaxial half-arbors, said chassis being pivotably mounted with respect to the frame around a second axis substantially perpendicular to the first axis by a second pivoting system comprising first and second coaxial half-arbors, and an escapement arranged on said support, the escapement comprising an escapement wheel and an escapement pinion connected with a shaft, wherein a first wheel supported by the first half-arbor of the first pivoting system forms a first gear train with a second wheel supported by the first half-arbor of the second pivoting system, and wherein a first wheel supported by the second half-arbor of the first pivoting system forms a gear train with a a second wheel supported by the first or second half-arbor of the second pivoting system, wherein: one of the wheels supported by the second pivoting system is kinematically connected to the energy source, and the other wheel supported by that pivoting system is stationary relative to the frame, and both wheels supported by the first pivoting system are kinematically connected with an input of a differential comprising transmission discs having a common axis of rotation being parallel to the shaft of the escapement, said differential being mounted on said support, said differential being arranged to transmit, at its output, the average of the rotations received at its inputs, said output being kinematically connected to the escapement, wherein, at the output of the differential, the rotations due to the movements of the support cancel each other out, said differential producing at its inputs two opposite rotations without any inverter such that, together with the pivoting systems, the differential maintains a substantially constant orientation.