Patent ID: 8794823
Filing Date: 2014-08-05
Classification: G04C,Y10T

Abstract:
1. A magnetic resonator, for a timepiece, comprising: an oscillator of the tuning-fork type having first and second branches arranged substantially in the form of a U, at least a first of said branches supporting at least one first permanent magnet defining a first magnetic field; and an escape wheel, designed to be arranged in engagement with a first mobile of a watchwork gear train in order to allow said escape wheel to be driven by a power source of the timepiece, said escape wheel being situated within range of said first permanent magnet in order to undergo the influence of said first magnetic field, wherein said escape wheel is free and supports at least two permanent magnets, preferably at least four, arranged so that the vibrations of said first branch of said tuning fork, on the one hand, control the rotation speed of said escape wheel and, on the other hand, are sustained periodically by the magnetic interaction between said first permanent magnet of said tuning fork and said permanent magnets of said escape wheel in order to define a free escapement.