Patent classifications
G04C3/06
Self-adjustable horological oscillator
A horological movement (6) including: a plate (7); a mechanical resonator (8) including an oscillating balance (11) rotatably mounted relative to the plate (7), and a spiral spring (22) coupled to the balance (11); an electromagnetic regulator (29) coupled to the mechanical resonator (8) to regulate the frequency of the oscillations of the balance (11), and including at least one permanent magnet (30) fixedly mounted relative to the plate (7), at least one coil (31), a quartz or silicon resonator (32) and an electronic circuit (33) connected to the resonator (32) and to the coil (31), all mounted on the balance (11) while being completely included in an inner cavity (18) delimited by the latter.
Self-adjustable horological oscillator
A horological movement (6) including: a plate (7); a mechanical resonator (8) including an oscillating balance (11) rotatably mounted relative to the plate (7), and a spiral spring (22) coupled to the balance (11); an electromagnetic regulator (29) coupled to the mechanical resonator (8) to regulate the frequency of the oscillations of the balance (11), and including at least one permanent magnet (30) fixedly mounted relative to the plate (7), at least one coil (31), a quartz or silicon resonator (32) and an electronic circuit (33) connected to the resonator (32) and to the coil (31), all mounted on the balance (11) while being completely included in an inner cavity (18) delimited by the latter.
Timepiece provided with a mechanical movement and a device for correcting a displayed time
A watch formed by a mechanical movement incorporating a mechanical resonator, including a display displaying the actual time, a correction device formed by a device for detecting the passage of at least one hand through at least one reference time position and by an electronic correction circuit allowing an overall time error for the display to be determined, and a device for braking the mechanical resonator. The correction device is arranged such that it can correct the actual time displayed as a function of the overall time error (loss or gain) previously determined. For this purpose, the correction device is arranged such that the braking device can act on the mechanical resonator during a correction period to vary the running of the drive mechanism of the display, in order to correct the actual time displayed.
Timepiece
Provided is a timepiece that improves the ease of unwinding a spring. The timepiece has a bridge disposed between the rotor and the main plate when seen in a side view; a pawl lever that is disposed between the rotor and bridge in side view, moves bidirectionally in a direction toward and a direction away from the transmission wheel in conjunction with the rotor, and causes the transmission wheel to turn in one direction; a release mechanism that is disposed to the bridge, and can change between an engaged state in which the pawl lever and the transmission wheel are engaged, and a released state in which the pawl lever and the transmission wheel are not engaged; and a train bridge disposed in side view between the pawl lever and the rotor, and having a first hole disposed to a position superimposed with the release mechanism when seen in a plan view.
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.
Magnetic or electrostatic pivoting of a mobile timepiece element
A timepiece sub-assembly including a mobile timepiece element including first and second annular and opposite peripheral surfaces of revolution about a same pivot axis, and a device for guiding pivoting about a theoretical axis of a timepiece mechanism. The first surface is magnetically or electrically charged, and the device includes at least three first surfaces regularly arranged around the theoretical axis, oppositely magnetically or respectively electrically charged to the first surface to repulse it at a first interface. In a watch, the second surface is magnetically or electrically charged, and the device includes at least three second surfaces regularly arranged around the theoretical axis, oppositely magnetically or electrically charged to the second surface to repulse it at a second interface.
Regulating body for a wristwatch
Regulating body for a wristwatch, comprising: a generator provided with a rotor and a stator with M+N coils, M being a whole number higher than, or equal to, 1; and an electronic regulating circuit having a first load impedance with an adjustable value for adjusting the current in N of said M+N coils, and therefore the rotational speed of the rotor. Only a limited number of coils is therefore used for the braking, the other coils continuing to supply the electronic regulating circuit.
TIMEPIECE INCORPORATING AN ACTUATOR COMPRISING AN ELECTROMECHANICAL DEVICE
A timepiece (2) includes an actuator, which applies braking pulses to the balance, which has an electromechanical device (6) and an electric control circuit (8). The device (6) includes a flexible member (16), formed by an elastic blade (20) and a mechanical element (22) defining a braking pad, and an electromagnetic system (10) formed by a coil carried by the flexible member and by a permanent magnet rigidly connected to a support (18) of the electromechanical device. When an electric pulse is provided to the coil, an electromagnetic force of repulsion is engendered between the coil and the permanent magnet so the mechanical element moves to a position of contact with the balance. To stabilise the rest position of the flexible member, a magnetic element (26) is rigidly connected to the coil to exert a magnetic return force complementary to the force of the elastic blade is provided.
TIMEPIECE REGULATING MECHANISM WITH OPTIMISED MAGNETIC ESCAPEMENT
Timepiece regulating mechanism including an energy storage means delivering an output torque (CS), via a train (3), to a wheel set (4) forming a magnetic escapement mechanism (10) with a resonator wheel set (5) subjected to the torque from a return means (6) and cooperating therewith, either directly or via a magnetic stop member (7), this magnetic escapement mechanism (10) being arranged to operate when the wheel set (4) receives a torque higher than or equal to a maintenance torque (CE), and the train (3) includes a torque regulating means (30) arranged to deliver to the wheel set (4) a constant torque comprised between 1.0 and 2.0 times the maintenance torque (CE), the torque regulating means (30) including a fusee (8) of continuously variable cross-section, from which unwinds a chain (9), wound by a drum (21), directly or indirectly driven by the energy storage means (2).