129 results about "Remontoire" patented technology

A timepiece, in particular a wristwatch, includes a constant-force device for acting on an oscillating system, the constant-force device including a switching unit and a tensioning module having a primary spring-energy store and a secondary spring-energy store. A seconds shaft bearing a seconds wheel and a cam plate is driven to rotate constantly by the secondary spring-energy store. The seconds wheel drives the oscillating system, and the cam plate acts on the switching unit for the periodic tensioning of the secondary spring-energy store by the primary spring-energy store.

A timepiece including a clockwork movement for measuring the time, and a striking work actuated by a barrel with a motor spring independent of the clockwork movement, this timepiece also including mechanical control means capable of being actuated manually to trigger the striking work, wherein the barrel is wound by means of a winding bar that ends, at its free end, in a toothed sector or rack and is kinematically connected to a winding push-button on the one hand, and to the motor spring of said striking work on the other hand.

Spring operated actuator devices for an electrical circuit breaker and/or electrical switching device include at least one clock spring comprising a disc shaped body with gear teeth and a spiral spring, a cam shaft holding the at least one clock spring with an inner end portion of the spiral spring attached to the cam shaft, and a drive cam held by the cam shaft adapted to be in communication with a follower that directs an actuator to open or close a mobile contact to maintain open and closed energy status of the electrical circuit. The at least one clock spring is configured as a closing spring of the spring operated actuator.

The present invention provides a hairspring supporting structure which can adjust the offset of the hairspring from a plane to a lowest limit, a hairspring balance wheel structure and a mechanical clock. The hairspring supporting structure of mechanical clock comprises a hairspring stud height position adjusting mechanism which shifts the hairspring stud in a vertical direction relatively to a hairspring stud ring. The hairspring stud is provided with a shaft which is inserted and penetrates the hairspring stud ring and a disc-shaped flange. The hairspring stud height position adjusting mechanism is provided with a hairspring stud height position adjustor which comprises the following components: an adjusting shaft which is matched with the hairspring stud ring; and an adjustor body which is provided with a reference frustum-shaped surface which is eccentric relatively the adjusting shaft at one side of the adjusting shaft. When the hairspring stud height position adjustor rotates along a central axis of the adjusting shaft, the adjustor body presses one end edge of the disc-shaped flange of the hairspring stud thereby shifting the hairspring stud upwards or downwards relatively to the hairspring stud ring.

A tuning-fork mechanical resonator for a mechanical clock movement with free escapement includes an oscillator of the tuning fork type, of which at least one first prong is intended to oscillate about a first axis and bears at least one first pin associated with at least one first fork tooth of a pallet assembly to cause this assembly to pivot between first and second angular positions and alternately lock and release an escapement wheel. The resonator comprises a conversion member secured to the first pin and designed to on the one hand, convert the oscillations of the first prong of the oscillator into rotational movements of the pallet assembly by transmitting first impulses thereto, and on the other hand, transmit mechanical energy from the pallet assembly to the first prong of the oscillator in the form of impulses.

The present invention relates to regulator organs for a mechanical timepiece, specifically a system based on the magnetic interaction between a resonator, for example in the form of a tuning fork, and an escapement wheel. The system is characterised in that there are several magnetic interaction zones (25) and (26) between the resonator (14) and the escapement wheel (9) that are arranged such that the torques produced at the escapement wheel by those interactions compensate each other if the escapement wheel is not synchronised with the frequency of the resonator. This results in a negligible torque on the escapement wheel when the latter rotates slowly in the direction of the arrow (24) or in the opposite direction. This makes it possible to start the timepiece at a low torque of the barrel spring and without a launch procedure or device and allows better resistance of the timepiece to withstand a loss of synchronisation in case of impact.

The timepiece movement is provided with an analogue device for displaying information whose value varies periodically or intermittently, this analogue display device including, on the one hand, an indicator provided with a first toothing, and on the other hand, a mechanism for the periodic or intermittent driving of the indicator. The drive mechanism is formed by an irreversible transmission system which ensures a shock resistant function for the indicator. The display device further includes a positioning jumper for the indicator generating a positioning force on the first toothing, which is sufficient to precisely position the indicator in a plurality of discrete display positions, but considerably insufficient to ensure a shock resistant function for the indicator. Thus, the indicator can be driven with a relatively low torque; which therefore requires less energy and makes it possible to provide a drive mechanism with a lower gear reduction for the drive torque transmission ratio.

There is provided a device for regulating the operation of a horological movement, including a magnetic escapement, which includes a resonator and a magnetic escapement mobile turning about an axis. The mobile includes at least one magnetic track with a plurality of magnets having an angular dimension that is greater than their radial dimension. The resonator includes at least one magnetic element for coupling to the magnetic track. The coupling element extends radially relative to the axis of rotation, and has a contour with a portion oriented substantially angularly when the resonator is in the rest position. When the mobile is driven in rotation, each magnet penetrates beneath the coupling element and gradually accumulates some potential magnetic energy. The magnet then exits from beneath the coupling element through the portion and the coupling element receives a pulse located around its rest position.

The invention provides a manual winding gear train, a clock machine core and a clock possessing the gear train capable of making the machine core itself set a winding torque below a specified level. The manual winding gear train of the machine core(2) of the clock(3) comprises a plurality of gears(60,70,41,42) meshed with each other to transmit the rotation of a shaft to a square hole wheel(37), an input side part(60) possessing an input side friction fastening part(67(H1)) and an output side part(70) possessing an output side friction fastening part(72(H2)). The input side part(60) and the output side part(70) are arranged correspondingly to each other at the respective friction parts and are rubbed and fastened with each other at the correspondingly arranged part. The manual winding gear train of the machine core(2) of the clock(3) also comprises an elastic mechanism(80) enabling one friction fastening part(72) to pushing the other friction fastening part(67).

A strong current boosting rotation automatic return direction controller for clock rotating needle comprises a clock rotating needle control system, a balancing point slipping change resistor system, a motor system and a spring torque control system, wherein the clock rotating needle control system comprises a horizontal circular and a horizontal rotating shaft, a top connection rod and a top are arranged below the centre of the rotating shaft and three rotating heavy pointers different in length and weight are arranged above the centre, the lower side of the resistor stripe fixing plate is provided with the balancing point, the middle part is provided with two conductive stripes and the upper side is provided with two resistor stripes; the spring torque control system comprises an empennage shaft and a spring wound on the shaft, two ends of the spring are fixed outer of the empennage shaft, the centre of the spring steel bar is fixed on the slot sliding block of the empennage shaft, the spring steel bar is fixed that the length of the spring steel bars at two ends of the spring is the same with the spring rotating resilience force; the changing current from the slipping change resistor is input into the motor and the motor drives the empennage shaft and the empennage to rotate together with the rotating shaft of the clock rotating needle control system synchronously.

The invention relates to an escapement gear, an escapement wheel employing the escapement gear, an anchor-shaped escapement, a movement, a mechanical timepiece and a method of torque transmission, capable of rapidly transmitting torque during alternating of impacting surfaces. In the escapement gear (1) of the escapement wheel (2) of the anchor-shaped escapement of the mechanical timepiece, a locking corner (30) which connects a stop surface (10) and an impacting surface (20) becomes a first convexly curved surface portion (31). A convexly curved second portion (21) is arranged on impacting surface (20) at a place being continuous with the first convexly curved surface portion (31) of the locking corner (30). The second convexly curved surface portion (21) may extend over the entire impacting surface (20). At a place further away from the locking corner (30) on the impacting surface (20), the radius of curvature R2 of the second curvedly convex surface portion (21) becomes larger. A portion which is continuous with the second curvedly convex surface portion (21) of the impacting surface (20) surface may be planar.

A timepiece movement including, fixed on a same plate, a gear train subjected to a torque in a timepiece movement, and an energy storage to deliver a torque to the gear train for actuating a mechanical mechanism synchronizing rotational speed of the gear train with a resonator having a given natural resonant frequency included in the timepiece movement. The resonator is an annular resonator including a ring disposed around an axis. The ring is arranged to be periodically deformed under an action induced by motion of a drive member, included in this mechanism, and the drive member is driven in a pivoting motion, directly or indirectly, by the gear train.

The mechanical timepiece movement includes at least one barrel, a set of gear wheels driven at one end by the barrel, and an escapement mechanism of a local oscillator with a resonator in the form of a sprung balance and a feedback system for the timepiece movement. The escapement mechanism is driven at another end of the set of gear wheels. The feedback system includes at least one precise reference oscillator combined with a frequency comparator to compare the frequency of the two oscillators and a mechanism for regulating the local oscillator resonator to slow down or accelerate the resonator based on the result of a comparison in the frequency comparator.

Watch with a timepiece movement, a resonator mechanism, including a magnetic escapement mechanism including an escape wheel set including a magnetized track, with a succession of areas according to a scrolling period in which its magnetic features are repeated, each area including an increasing magnetic field ramp followed by a magnetic field barrier with an increasing field and of higher field gradient that that of the ramp, the track includes a continuous, closed magnetic layer over the entire periphery of the escape wheel set, of constant thickness and variable width, whose geometry defines these magnetic field ramps and barriers, this escape wheel set cooperating with a sprung balance via a pivoting magnetic stop member comprising a pole piece arranged to cooperate alternately with an internal track and an external track of the magnetic layer.

The invention provides swing wheels, a clock movement provided with the swing wheels and a clock provided with the clock movement. The swing wheels are capable of easily adjusting the error rate to reduce errors of a release catch so that the characteristic of stable error rate is obtained. The swing wheels are characterized in that the swing wheels are provided with a swing shaft (30) and a balance spring. A balance wheel (20) is outwardly embedded at the swing shaft (30). The inner end portion of the balance spring is connected with the swing shaft (30).The wing wheels are formed in such a manner that when the inner peripheral surface (40a) of the balance spring (40) is lengthened along an axis of the swing shaft (30), the inner peripheral surface (40a) and a central axis (O) of the swing shaft (30) are intersected.

The invention relates to a timekeeper, at least having a minute hand, a seconds hand and a clockwork mechanism with a mechanism for adjusting the minute hand. The mechanism comprises an adjusting shaft moving between a conventional position and an adjusting position in an axial direction, the adjusting shaft is coupled with a center-wheel group of the clockwork mechanism such that rotation of theshaft adjusts the minute hand. The adjusting shaft co-operates with a zeroing mechanism, the zeroing mechanism drives the second hand in a zero position when the adjusting shaft moves in the axial adjusting position and locks the seconds hand in the zero position when the adjusting shaft is in the adjusting position, and releases the seconds hand when the adjusting shaft moves in the conventionalposition again. According to the invention, the center-wheel group of the clockwork mechanism has a lock mechanism, the lock mechanism can obtain 60 locking positions, so that the minute hand can move among 60 positions the minute hand by rotating the adjusting shaft in the adjusting position, and each of 60 positions corresponds one minute scale.

A clockwork movement with a tourbillon unit, including a base plate, a mobile cage mounted rotatably on the base plate and connected to a second pinion, a balance mounted on the mobile cage and an escape wheel mounted on the mobile cage and being in operative connection with the balance, a balance wheel stop mechanism being capable to be brought into engagement with the balance, wherein it further includes a setting mechanism controlled by an external actuating device for any angular orientation of the mobile cage.