PROTECTION FOR THE STRIPS OF A MECHANICAL WATCH RESONATOR

    公开(公告)号:US20180136609A1

    公开(公告)日:2018-05-17

    申请号:US15793145

    申请日:2017-10-25

    CPC classification number: G04B43/002 G04B17/045 G04B17/10 G04B31/02

    Abstract: 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
    32.
    发明申请

    公开(公告)号:US20180113423A1

    公开(公告)日:2018-04-26

    申请号:US15672478

    申请日:2017-08-09

    CPC classification number: G04C5/005 G04B15/06 G04B15/10 G04B17/10 G04B17/26

    Abstract: 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.

    UNIVERSAL TIMEPIECE
    33.
    发明申请
    UNIVERSAL TIMEPIECE 有权
    通用时间

    公开(公告)号:US20140078869A1

    公开(公告)日:2014-03-20

    申请号:US14029112

    申请日:2013-09-17

    CPC classification number: G04B19/22 G04B19/223

    Abstract: The universal timepiece comprises a winter/summer switching mechanism (27, 29, 31, 25, 19, 19H, 19E, 20, 20H, 20E, 21, 21E, 21H, 22, 22E, 22H, 23, 23E, 23H, 11, 11A, 12, 12A, 13, 13A, 14, 14A, 15, 15A, 17) arranged to be driven intermittently by the movement to selectively displace some of the geographic indications carried by the dial (3) by 1/24th of a turn in order to change by one hour the local time associated with these geographic indications during a change from winter time to summer time or from summer time to winter time.

    Abstract translation: 通用钟表包括冬/夏切换机构(27,29,31,25,19,19H,19E,20,20H,20E,21,21E,21H,22,22E,22H,23,23E,23H,11 ,11A,12,12A,13,13A,14A,14A,15A,15A,17),其被布置成通过所述移动间歇地驱动,以选择性地将所述拨盘(3)承载的地理标志的某一位置移位1/24 在冬季时间到夏季时间或从夏季到冬季的时候,改变与这些地理标志相关的当地时间一小时。

    WINDING DEVICE FOR A HOROLOGICAL MOVEMENT OF A WATCH

    公开(公告)号:US20240419126A1

    公开(公告)日:2024-12-19

    申请号:US18641920

    申请日:2024-04-22

    Abstract: An apparatus (10) for winding a horological movement of a watch (20), including an electronic module (13) configured to control a motor (14) kinematically connected to a drive member intended to rotate a winding member of the watch (20). The apparatus (10) includes a support (11) for the watch (20) formed by a body having a central element (110) and at least one side element (111) arranged at a distance from each other so as to form a recess (118) intended to receive a strand (21) of a bracelet of the watch (20), the central element (110) and the side element (111) being adapted to apply opposing forces to the strand (21) so as to ensure that it is held in the recess (118).

    SPEED-REGULATING DEVICE FOR A ROTATING WHEEL SET OF A TIMEPIECE

    公开(公告)号:US20240337984A1

    公开(公告)日:2024-10-10

    申请号:US18606399

    申请日:2024-03-15

    CPC classification number: G04B17/30 G04B19/30

    Abstract: A timepiece with, in order to regulate the speed of rotation of a rotating wheel set, a regulating device including a microgenerator and an LED powered by the microgenerator without storage of electrical energy and arranged such that, for a range of functional speeds of the rotating wheel set, the corresponding range of frequencies of rotation of the rotor of the microgenerator generates, in its coils, an induced voltage range whose maximum voltage value for the maximum frequency is greater than a threshold voltage, preferably also the minimum voltage value for the minimum frequency, the motor device which drives the rotating wheel set being arranged to have a useful motor torque range allowing the rotating wheel set to be driven within the functional speed range. Also a related method.

    SHOCK-RESISTANT PIEZOELECTRIC ROTARY MOTOR, IN PARTICULAR FOR WATCHMAKING

    公开(公告)号:US20240210889A1

    公开(公告)日:2024-06-27

    申请号:US18528864

    申请日:2023-12-05

    CPC classification number: G04C3/12 H02N2/101 H02N2/123

    Abstract: A rotary piezoelectric motor, in particular for a timepiece, the motor including: a rotor configured to rotate and actuate a mechanical device, a stator configured to rotate the rotor, the stator including a piezoelectric actuator, the piezoelectric actuator including a moving element whose movement causes the rotor to rotate in a first direction, the piezoelectric actuator including only two electrically actuatable resonators, the two resonators being connected to the moving element to move it against the rotor to cause it to rotate, the two resonators being arranged relative to the moving element so as to cause the moving element to oscillate in first and second directions different from each other, each resonator including a centre of rotation, the two resonators being disposed relative to the moving element so that, around each centre of rotation, the torque resulting from all the acceleration forces being applied in the plane of each resonator is zero.

    TIMEPIECE MECHANISM PROVIDED WITH A MAGNETIC GEAR

    公开(公告)号:US20230062527A1

    公开(公告)日:2023-03-02

    申请号:US17869273

    申请日:2022-07-20

    Abstract: A mechanism (1) including a magnetic gear (2) including a first wheel (6B) and a second wheel (6C) provided with a first magnetic toothing (10) and a second magnetic toothing (12) respectively. The first and second magnetic toothings are respectively formed by first and second teeth made of a soft ferromagnetic material; and the magnetic gear (2) further includes a third wheel (6A) arranged between the first and second wheels (6B, 6C) and provided with a third magnetic toothing (8) formed by permanent magnetic poles, in particular by bipolar magnets. In general, the first wheel is a drive wheel, whereas the second wheel is driven into order to carry out a function or transmit a torque. The third intermediate wheel is preferably mounted such that it can rotate freely.

    CONTROL METHOD OF A DIRECT CURRENT ELECTRIC MOTOR

    公开(公告)号:US20200186059A1

    公开(公告)日:2020-06-11

    申请号:US16656848

    申请日:2019-10-18

    Abstract: The present invention concerns a method of controlling a rotational speed of a rotor (3) of a direct current electric motor (1) comprising an inductor circuit (A, B) for rotating the rotor, which is configured to rotate continuously and is equipped with permanent magnets. The method comprises: measuring the rotational speed of the rotor; determining a time drift in the rotor rotation compared to a reference signal; defining N speed thresholds with at least one being a variable speed threshold depending on the determined time drift, the N speed thresholds defining N+1 rotational speed ranges for the rotor; determining in which one of the N+1 rotational speed ranges the determined rotational speed of the rotor is; and finally selecting an action relative to the control of the inductor circuit, based on the determined rotational speed range, for controlling the rotational speed of the rotor.

    SHOCK PROTECTION FOR A STRIP RESONATOR WITH RCC PIVOTS

    公开(公告)号:US20190332057A1

    公开(公告)日:2019-10-31

    申请号:US16372768

    申请日:2019-04-02

    Abstract: A timepiece resonator mechanism including a structure and an inertia element oscillating about an axis, subjected to return forces exerted by a RCC flexure pivot with elastic resonator strips, which are each fixed to the structure and to the inertia element and essentially deformable in a plane perpendicular to the axis, straight and extending in parallel or coincident planes, the crossing, in projection onto a plane perpendicular to the axis, of their directions defining this axis, these strips are fixed on the inertia element side to a stiff element, comprised in an anti-shock element and on which are fixed the strips and which is integral with anti-shock flexible elements arranged to keep suspended the inertia element, the anti-shock element providing shock protection for the strips of the flexure pivot.

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