Device and method for adjusting the rate of a watch

    公开(公告)号:US10948879B2

    公开(公告)日:2021-03-16

    申请号:US15957949

    申请日:2018-04-20

    IPC分类号: G04D7/12 G04B18/02

    摘要: A method for adjusting the rate of a watch with an oscillator arranged to generate oscillation at a nominal frequency N0, with a servo-system including a master oscillator arranged to generate excitation oscillation at an excitation frequency NE, which is approximately equal to, or equal to the nominal frequency N0, or to an integer multiple of this nominal frequency N0, the watch is subjected to excitation oscillation or to a modulated motion, generated by the master oscillator, during a transition phase after which the oscillator of the watch is stabilised at excitation frequency NE, and there is incorporated in the servo-system a winder for mechanical or automatic watches, arranged to move a support on which such a watch is fixed.

    Protection for the strips of a mechanical watch resonator

    公开(公告)号:US10216149B2

    公开(公告)日:2019-02-26

    申请号:US15793145

    申请日:2017-10-25

    摘要: Strip resonator for a mechanical watch movement, comprising a structure, an oscillating inertial element, and elastic strips forming a flat bearing for the inertial element, and a flat, anti-shock device arranged to protect each strip from rupture in the event of a shock, and including a first prestressed flexible element arranged to allow a variation in length during the expansion or contraction of a strip within a range of lengths corresponding to normal operation of this strip under the action of a stress of intensity lower than a first threshold, and to prevent the expansion or contraction of this strip when it is subjected to a tensile or respectively compressive stress of intensity higher than the first threshold, and the resonator includes, for the three-dimensional anti-shock protection of the strips, in an axial direction perpendicular to a main plane, axial protection means, which include, on the one hand, axial banking members for limiting the axial travel of at least one inertial element, and on the other hand, an axial anti-shock device comprising a second axially prestressed flexible element.

    Optimised timepiece movement
    6.
    发明授权

    公开(公告)号:US10114340B2

    公开(公告)日:2018-10-30

    申请号:US15672478

    申请日:2017-08-09

    摘要: Timepiece movement including a flexible strip resonator cooperating with a magnetic escapement mechanism, wherein an escape wheel set includes tangential magnetized areas repelling first magnetized areas of an inertial element of the resonator, this movement includes isochronism correction means combining the first magnetized areas and compensating magnets on the escape wheel set, each arranged in proximity to a tangential magnetized area and producing a leakage field in a different direction from that of the field of the tangential magnetized area, the leakage field intensity being low compared to that of the field of the second tangential magnetized area, and this leakage field interacting with one of the first magnetized areas to produce a low variation in the operation of the resonator mechanism.

    Regulating device
    9.
    发明授权
    Regulating device 有权
    调节装置

    公开(公告)号:US09389591B2

    公开(公告)日:2016-07-12

    申请号:US14564581

    申请日:2014-12-09

    IPC分类号: G04C5/00 G04C3/10

    CPC分类号: G04C5/005 G04C3/105

    摘要: The invention concerns a magnetic device for regulating the relative angular velocity of a wheel and of at least one magnetic dipole integral with an oscillating device. The wheel or the dipole is driven by a driving torque. The wheel includes a periodic, ferromagnetic pole path which alternates according to a center angle and the at least one dipole is arranged to permit magnetic coupling with the ferromagnetic path and oscillation of the dipole at the natural frequency of the oscillating element during the relative motion of the wheel and of the magnetic dipole to regulate the relative angular velocity. The wheel further includes an assembly to dissipate the kinetic energy of the at least one dipole when it moves away from the ferromagnetic path.

    摘要翻译: 本发明涉及一种用于调节车轮的相对角速度和与振荡装置一体化的至少一个磁偶极子的磁性装置。 车轮或偶极子由驱动扭矩驱动。 车轮包括周期性铁磁极路径,其根据中心角度交替,并且至少一个偶极子被布置成允许在铁磁路径的磁耦合和偶极子的振荡在振荡元件的固有频率期间在相对运动期间 车轮和磁偶极子调节相对角速度。 车轮还包括当远离铁磁路径移动时消散至少一个偶极子的动能的组件。

    Horological movement comprising an escapement provided with a magnetic system

    公开(公告)号:US12045011B2

    公开(公告)日:2024-07-23

    申请号:US17189359

    申请日:2021-03-02

    IPC分类号: G04B15/08 G04B15/14

    CPC分类号: G04B15/08 G04B15/14

    摘要: A horological movement including a mechanical resonator and a hybrid escapement including an escapement wheel and a pallet assembly with at least one magnetic pallet-stone formed of a magnet and associated with a mechanical banking, the escapement wheel including a periodic magnetised structure defining increasing gradients of magnetic potential energy for the magnetic pallet-stone, and protruding parts associated with the increasing gradients of magnetic potential energy. When the force torque is equal to a nominal force torque or has a value within at least an upper part of a given range of values, one of the protruding parts of the escapement wheel is subjected to at least one shock on the mechanical banking of the pallet assembly after the magnetic pallet-stone has climbed any one of the increasing gradients of magnetic potential energy, thus dissipating at least partially a kinetic energy of the escapement wheel.