G04C3/06

Natural escapement

An escapement mechanism including a stop member between a resonator and two escape wheel sets each subjected to a torque, and each including a magnetized or ferromagnetic track over a period. The stop member includes at least one magnetized or ferromagnetic pole shoe, transversely movable with respect to travel of a surface of the track. The pole shoe or the track creates a magnetic field between the pole shoe and the surface, and the pole shoe is confronted by a magnetic field barrier on the track just before each transverse motion of the stop member actuated by the period action of the resonator. The escape wheel sets are each arranged to cooperate alternately with the stop member, and are connected to each other by a direct kinematic connection.

Natural escapement

An escapement mechanism including a stop member between a resonator and two escape wheel sets each subjected to a torque, and each including a magnetized or ferromagnetic track over a period. The stop member includes at least one magnetized or ferromagnetic pole shoe, transversely movable with respect to travel of a surface of the track. The pole shoe or the track creates a magnetic field between the pole shoe and the surface, and the pole shoe is confronted by a magnetic field barrier on the track just before each transverse motion of the stop member actuated by the period action of the resonator. The escape wheel sets are each arranged to cooperate alternately with the stop member, and are connected to each other by a direct kinematic connection.

Contactless cylinder escapement mechanism for timepieces

An escapement mechanism including an escape wheel subjected to a rotational torque and a resonator integral with a pivotally mounted regulating wheel set. The escape wheel includes plural actuators regularly spaced on a periphery thereof, each arranged to cooperate directly with at least a first track of the regulating wheel set. Each actuator includes a first magnetically, or respectively electrically charged, or ferromagnetic or respectively electrostatically conductive surface, to cooperate with the first track which is magnetically, or respectively electrically charged, or ferromagnetic or respectively electrostatically conductive, to repel or attract each first surface of the actuator, and each actuator includes a mechanical stop member to cooperate, in an end-of-travel stop arrangement, with at least a first complementary stop surface included in the regulating wheel set to constitute therewith an autonomous escapement mechanism.

ESCAPEMENT WITH ESCAPE WHEEL WITH FIELD RAMPS AND NON-RETURN

A timepiece escapement mechanism including a resonator and an escape wheel arranged to cooperate with this resonator directly or indirectly through a stopper forming part of this escapement mechanism, this escape wheel including a succession of tracks carrying magnetic or electrostatic field potential ramps arranged to cooperate with the resonator or respectively with the stopper, this escapement mechanism comprising a non-return device arranged to oppose the recoil of the escape wheel, and the stopper cooperates, on the one hand, with a plate forming part of the resonator and, on the other, with these magnetic or electrostatic field potential ramps by at least one pole shoe forming part of the stopper and arranged to move in the field corresponding to the magnetic or electrostatic field potential ramps.

CONTACTLESS CYLINDER ESCAPEMENT MECHANISM FOR TIMEPIECES

An escapement mechanism including an escape wheel subjected to a rotational torque and a resonator integral with a pivotally mounted regulating wheel set. The escape wheel includes plural actuators regularly spaced on a periphery thereof, each arranged to cooperate directly with at least a first track of the regulating wheel set. Each actuator includes a first magnetically, or respectively electrically charged, or ferromagnetic or respectively electrostatically conductive surface, to cooperate with the first track which is magnetically, or respectively electrically charged, or ferromagnetic or respectively electrostatically conductive, to repel or attract each first surface of the actuator, and each actuator includes a mechanical stop member to cooperate, in an end-of-travel stop arrangement, with at least a first complementary stop surface included in the regulating wheel set to constitute therewith an autonomous escapement mechanism.

Timepiece assembly comprising a watch and a system for correcting the time

A timepiece assembly includes a watch having a mechanical movement and an analogue time display, the running of which is set by a mechanical resonator, and a support for the watch. To correct a time displayed by the analogue display, the timepiece assembly includes a correction system which is formed by a mechanical device incorporated into the watch and by an electrical device incorporated into the support. The mechanical device includes a magnet supported by an elastic blade and is arranged in the watch to brake the oscillating mechanical resonator, for example by applying periodic braking, or to momentarily stop its oscillation by exerting a magnetic force on the magnet with a magnetic field produced by a coil of the electrical device and passing through the case of the watch, to carry out essentially a set correction of the time displayed.

Timepiece assembly comprising a watch and a system for correcting the time

A timepiece assembly includes a watch having a mechanical movement and an analogue time display, the running of which is set by a mechanical resonator, and a support for the watch. To correct a time displayed by the analogue display, the timepiece assembly includes a correction system which is formed by a mechanical device incorporated into the watch and by an electrical device incorporated into the support. The mechanical device includes a magnet supported by an elastic blade and is arranged in the watch to brake the oscillating mechanical resonator, for example by applying periodic braking, or to momentarily stop its oscillation by exerting a magnetic force on the magnet with a magnetic field produced by a coil of the electrical device and passing through the case of the watch, to carry out essentially a set correction of the time displayed.

MECHANICAL TIMEPIECE
20250181035 · 2025-06-05 ·

Provided is a mechanical timepiece in which rotation is maintained even when a torque caused by a spring force of a hairspring is decreased. The mechanical timepiece includes a power spring, a balance wheel, a hairspring, a permanent magnet, a coil, a soft magnetic core, and rate adjustment means. The permanent magnet is arranged so that, at a position of 0, an S-pole portion is opposed to a first end portion with a first interval and an N-pole portion is opposed to a second end portion with a second interval, and, at a position of 180, the S-pole portion is opposed to the second end portion with a third interval and the N-pole portion is opposed to the first end portion with a fourth interval.

Mechanical timepiece

A mechanical timepiece includes: a hairspring; a permanent magnet; a soft magnetic core; a control circuit for performing rate adjustment based on a counter-electromotive voltage caused in a coil by a motion of the permanent magnet accompanying a forward direction motion and a reverse direction motion of the balance wheel. The permanent magnet is arranged so that, under a state in which the hairspring is brought to an equilibrium length, a direction of magnetization is directed to the first end portion side or the second end portion side.