EP2908191A2 - Frequenzregulierung eines Uhrresonators durch Einwirkung auf die Steifheit eines elastischen Rückstellmittels - Google Patents

Frequenzregulierung eines Uhrresonators durch Einwirkung auf die Steifheit eines elastischen Rückstellmittels Download PDF

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Publication number
EP2908191A2
EP2908191A2 EP15153321.3A EP15153321A EP2908191A2 EP 2908191 A2 EP2908191 A2 EP 2908191A2 EP 15153321 A EP15153321 A EP 15153321A EP 2908191 A2 EP2908191 A2 EP 2908191A2
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EP
European Patent Office
Prior art keywords
spiral
return means
elastic return
regulating device
resonator mechanism
Prior art date
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Granted
Application number
EP15153321.3A
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English (en)
French (fr)
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EP2908191A3 (de
EP2908191B1 (de
Inventor
Thierry Hessler
Davide Sarchi
Marc Stranczl
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Swatch Group Research and Development SA
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Swatch Group Research and Development SA
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Priority to EP15153321.3A priority Critical patent/EP2908191B1/de
Publication of EP2908191A2 publication Critical patent/EP2908191A2/de
Publication of EP2908191A3 publication Critical patent/EP2908191A3/de
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Publication of EP2908191B1 publication Critical patent/EP2908191B1/de
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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/02—Regulator or adjustment devices; Indexing devices, e.g. raquettes
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/063—Balance construction
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/26—Compensation of mechanisms for stabilising frequency for the effect of variations of the impulses
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/04—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat

Definitions

  • the invention relates to a method of frequency maintenance and regulation, around its natural frequency, of a clockwork resonator mechanism comprising at least one elastic return means which comprises at least one spiral or a torsion wire or a flexible guide, where at least one regulating device acting on said resonator mechanism is used with a periodic movement.
  • the invention also relates to a watch movement comprising at least one clock resonator mechanism designed to oscillate at a natural frequency, said clock resonator mechanism comprising at least one elastic return means comprising at least one hairspring or a wire of torsion or flexible guidance.
  • the invention also relates to a timepiece, more particularly a watch, comprising at least one such watch movement.
  • the invention relates to the field of time bases in mechanical watchmaking, in particular based on a spiral balance resonator mechanism.
  • the document EP 1 843 227 A1 of the same applicant describes a coupled resonator comprising a first low frequency resonator for example of the order of a few hertz and a second resonator at higher frequency, for example of the order of one kilohertz.
  • the invention is characterized in that the first resonator and the second resonator comprise permanent mechanical coupling means, said coupling making it possible to stabilize the frequency in the event of external disturbances, for example in the event of shocks.
  • the document CH 615 314 A3 in the name of PATEK PHILIPPE SA describes a mobile watch clock regulation unit, comprising an oscillating balance mechanically maintained by a spiral spring, and a vibrating member magnetically coupled with a fixed member for the synchronization of the balance.
  • the balance and the vibrating member are constituted by a single mobile element vibrating and oscillating simultaneously.
  • the vibration frequency of the vibrating member is an integer multiple of the oscillation frequency of the balance.
  • the invention proposes to manufacture a time base as accurate as possible.
  • the invention relates to a frequency maintenance and regulation method, around its natural frequency, of a clockwork resonator mechanism comprising at least one elastic return means which comprises at least one hairspring or a wire torsion or flexible guide, wherein at least one regulating device acting on said resonator mechanism with a periodic movement is used, characterized in that said periodic movement imposes a periodic modulation, with a regulation frequency which is between 0.9 times and 1.1 times the value of an integer multiple of said natural frequency, said integer being greater than or equal to 2 and less than or equal to 10, by controlling a periodic variation of the real part and / or the imaginary part of the rigidity of at least one said elastic return means.
  • said periodic movement imposes a periodic modulation of the resonant frequency of said resonator mechanism, by imposing a modulation of the section of at least one said elastic return means, and / or a modulation of the modulus of elasticity of at least one said elastic return means, and / or a modulation of the shape of at least one said elastic return means, and / or a modulation of the stresses at the attachment points of at least one said means elastic return.
  • At least one said regulator device is used to impart periodic movement to at least one component of said resonator mechanism or to a tooling influencing the position of such a component of said resonator mechanism and prints said periodic movement to a said resonator mechanism comprising at least one means of resilient return comprising at least one hairspring or a torsion wire or a flexible guide, and is made to act at least one said regulating device by controlling a periodic variation of the rigidity of said elastic return means by modulating its section and / or its modulus elasticity and / or its shape and / or stresses at its attachment points.
  • the invention also relates to a watch movement comprising at least one clock resonator mechanism designed to oscillate at a natural frequency, said clock resonator mechanism comprising at least one elastic return means comprising at least one hairspring or a wire of torsion or flexible guide, characterized in that said movement comprises at least one regulating device arranged to control a periodic variation of the rigidity of said elastic return means with a control frequency which is between 0.9 times and 1.1 times the value of an integer multiple of said natural frequency of said resonator, said integer being greater than or equal to 2 and less than or equal to 10, and in that said regulating device is arranged to print a periodic movement to at least one component of said resonator mechanism for exerting on said component a twisting or pulling or compressive force, and / or for printing a periodic movement to at least one tooling influencing the position of such a component of said resonator mechanism, and in that at least one said regulating device is arranged to impose a modulation of the section of at least one said elastic return means, and
  • the invention also relates to a timepiece, more particularly a watch, comprising at least one such watch movement.
  • the object of the invention is to manufacture a time base to make a mechanical timepiece, including a mechanical watch, as accurate as possible.
  • a parametric resonator system reduces the influence of the exhaust and thus make the watch more accurate.
  • a parametric oscillator uses, for the maintenance of oscillations, a parametric actuation which consists in varying one of the parameters of the oscillator with a regulation frequency ⁇ R between 0.9 times and 1.1 times the value of a multiple integer of the eigenfrequency ⁇ 0 of the oscillator system to be regulated, this integer being greater than or equal to 2, and which is preferably an integer multiple, in particular double, of the natural frequency ⁇ 0.
  • regulator 2 the oscillator which serves for maintenance and frequency regulation of the other system maintained, which is called “the resonator” 1.
  • T is the kinetic energy
  • V the potential energy and the inertia I ( t )
  • the rigidity k ( t ) and the rest position x 0 ( t ) of said resonator are a periodic function of time
  • x is the generalized coordinate of the resonator.
  • the function f (t) takes the value 0 in the case of a non-forced oscillator.
  • This function f (t) can, again, be a periodic function, or be representative of a Dirac type pulse.
  • the invention consists in varying, by the action of a maintenance oscillator or regulator, one or the other, or all, the terms ⁇ (t), ⁇ (t), by modifying the real part and / or imaginary rigidity, with a regulation frequency ⁇ R which is between 0.9 times and 1.1 times the value of an integer multiple, this integer being greater than or equal to 2, in particular double, of the natural frequency ⁇ 0 of the system oscillator to be regulated.
  • the regulation frequency ⁇ R is an integer multiple, in particular double, of the natural frequency ⁇ 0 of the resonator system to be regulated.
  • the rest position x 0 (t) varies simultaneously with the parameters ⁇ (t), ⁇ (t), with a regulation frequency ⁇ R which is between 0.9 times and 1.1 times the value of a multiple integer, this integer being greater than or equal to 2, in particular double, of the natural frequency ⁇ 0 of the oscillator system to be regulated.
  • all the terms ⁇ (t), ⁇ (t), x 0 (t), vary with a control frequency ⁇ R which is preferably multiple integer, in particular double, of the natural frequency ⁇ 0 of the resonator system to be regulated.
  • the maintenance oscillator or regulator in addition to the modulation of the parametric terms, also introduces a nonparametric maintenance term f (t) , the amplitude of which is negligible once the parametric regime is reached [ WB Case, The pumping of a swing from the standing position, Am. J. Phys. 64, 215 (1996) )].
  • forcing term f (t) may be introduced by a second maintenance mechanism.
  • the principle can be reproduced in a timepiece or a watch which comprises a mechanical resonator balance sprung, with one end of the spiral attached to a ferrule integral with the balance, and the other end attached to a stud.
  • the oscillation can be maintained and the accuracy of the system is notoriously improved.
  • the maintenance is advantageously carried out with an integer multiple frequency, in particular double, of the frequency of the maintained resonator.
  • the mechanical means of maintenance can take different forms.
  • the present invention consists in varying the rigidity of the spiral.
  • the excitation at twice the frequency can be performed with a square signal, or with a pulse signal, it is not essential to have a sinusoidal excitation.
  • the maintenance regulator does not need to be very precise: its possible lack of precision only results in a loss of amplitude, but without variation of the frequency (except of course if this frequency is very variable, which is to be avoided).
  • these two oscillators, maintenance regulator and resonator maintained are not coupled, but one maintains the other, one-way.
  • the invention differs from the coupled oscillators known elsewhere: indeed, it is not desired, in the implementation of the invention, reversibility of energy transfer between two oscillators, but rather, in the whenever possible, a one-way energy transfer from one oscillator to the other.
  • the invention more particularly relates to the frequency regulation of a clock resonator by acting on the rigidity of an elastic return means.
  • the invention relates to a method of frequency regulation of a clock resonator mechanism 1 around its natural frequency ⁇ 0.
  • This method implements at least one regulating device 2 imparting a periodic movement to at least one component of the resonator mechanism 1 or to a tooling influencing the position or the rigidity of such a component of the resonator mechanism 1.
  • this periodic movement imposes a periodic modulation at least of the resonance frequency of the resonator mechanism 1, acting at least on the rigidity of an elastic return means that includes this resonator mechanism 1, with a regulation frequency ⁇ R which is included between 0.9 times and 1.1 times the value of an integer multiple of the natural frequency ⁇ 0, this integer being greater than or equal to 2 and less than or equal to 10.
  • the periodic movement imposes a periodic modulation of the resonant frequency of the resonator mechanism 1, imposing both a modulation of the rigidity of the resonator mechanism 1 and an inertial modulation of the mechanism resonator 1.
  • the periodic movement imposes a periodic modulation of the resonance frequency of the resonator mechanism 1, by imposing a modulation of the section of an elastic return means, in particular but not exclusively a spring, that comprises said resonator mechanism 1 and / or a modulation of the modulus of elasticity of an elastic return means that comprises the resonator mechanism 1, and / or a modulating the shape of an elastic return means that comprises the resonator mechanism 1.
  • this periodic movement may, again, impose a periodic modulation of the resonance frequency of the resonator mechanism 1, by imposing, again, a modulation of the active length of an elastic return means, in particular a spring , what does this resonator mechanism 1 involve?
  • the periodic movement imposes a periodic modulation of the resonance frequency of the resonator mechanism 1 by imposing both a modulation of the rigidity of the resonator mechanism 1, and a modulation of the rest point of the resonator mechanism 1.
  • At least one said regulator device 2 is used to impart periodic movement to at least one component of the resonator mechanism 1, or to a tool that influences the position of such a component of the resonator mechanism. 1, and this periodic movement is imparted to a resonator mechanism 1 comprising at least one elastic return means 40 comprising at least one hairspring 4 or a torsion wire 46, or an elastic flexible guide including a virtual pivot (such as butterfly guide, or 4-necked RCC, combination of flexible blades, or set of crossed blades, or the like, which can be produced in one piece by the technologies of micro-machinable materials, "MEMS", “LIGA” or the like), and at least one said regulator device 2 by controlling a periodic variation of the rigidity of the elastic return means 40 by modulating its section and / or its modulus of elasticity and / or its form e and / or constraints at its attachment points.
  • a resonator mechanism 1 comprising at least one elastic return means 40 comprising at least one hairspring 4 or a torsion wire
  • shape modulation is meant here a deformation, under the effect of an external constraint, with respect to the idle form of the elastic return means, and not the normal deformation in service that takes for example a spiral spring during its contraction and its elongation. This is for example a deformation induced by contact, by aerodynamic friction, a contactless force such as a force of magnetic or electrostatic origin, or other.
  • the elastic return means 40 considered here is the means used to ensure the oscillation frequency of the resonator mechanism 1.
  • the preferred application of the invention concerns watches, especially for an application where the elastic return means 40 is constituted by a torsion wire.
  • this method is applied to a resonator mechanism 1 comprising at least one elastic return means 40 comprising at least one hairspring 4 or a torsion wire 46 or a flexible guide 46, and at least one such device is made to act.
  • regulator 2 by controlling a periodic variation of the real part and / or the imaginary part of the rigidity of this elastic return means 40, the real part of the rigidity defining the frequency of this resonator mechanism 1, and the imaginary part of the rigidity defining the quality factor of this resonator mechanism 1.
  • this method is applied to a sprung-balance assembly 3, the spiral 4 of which constitutes the elastic return means 40 and is held between a stud 5 at a first external end 6 and a ferrule 7 at a second inner end 8, and is made to act at least one such regulator device 2 by controlling a periodic variation of the real part and / or the imaginary part of the rigidity of the spiral 4.
  • the external terminal curve 17 of the hairspring 4 is doubled locally by an additional turn 18 fixed to this hairspring 4 at at least a first junction point 19, and is made periodically with the regulating device 2 of twists in opposite directions on the outer end curve 17 and on the additional turn 18, by acting on the peak 5 for the outer terminal curve 17, and on an end 18A opposite this first junction point 19 of the additional turn 18 for the additional turn 18.
  • This double torsion has the advantage of allowing the modification of the rigidity of the spiral, without modifying its position in its plane.
  • the external terminal curve 17 of the spiral 4 is locally doubled by an additional turn 18 fixed to this spring 4 at at least a first junction point 19, and a movement is made periodically with the regulating device 2 on an opposite end 18A. at this first junction point 19 of the additional coil 18.
  • the stiffness of the external terminal curve, and consequently that of the spiral, is thus modified. It is also possible to use the regulator device 2 to move the stud 5 and the end 18A.
  • an arm 20 is attached to the external terminal curve 17 of the hairspring 4 at at least a second junction point 21, and a movement is made periodically with the regulating device 2 on one end 22 of the arm 20 opposite this second point.
  • the arm 20 is chosen to be stiffer than the external terminal curve 17.
  • the spiral 4 is made with at least two conductive strips 41, 42, separated by insulating elements 43 and such a regulating device 2 is used to periodically apply a field to the two blades 41, 42 so as to modify the gap E1 ( Figure 7A ) or E2 ( Figure 7B ) between these two blades 41,42, and thus to change the total section and stiffness of the spiral 4. In a variant, they are periodically applied a different field.
  • the two blades 41, 42 are subjected to a different electromagnetic and / or electrostatic and / or magnetostatic field, by a movement printed on a ferromagnetic or magnetized or electrostatically conductive or electrised polar mass (in particular magnets or electrets) in the vicinity.
  • each blade so as to give rise to an electric or magnetic or electrostatic or magnetostatic force between them, and to approach them or to move them away from each other.
  • the rigidity of the spiral 4 is modified because its section varies.
  • the movement is preferably mechanically printed to these polar masses.
  • the two blades 41, 42 are subjected to an electric or electrostatic field so as to locally polarize the spiral 4 and locally modify its rigidity 4.
  • such a regulating device 2 comprising a rotating mobile 28 equipped with magnets 29 at its periphery and whose field cooperates periodically with at least one magnet 45 placed on the spiral 4 (one can imagine placing the magnet on the side of the ferrule), to periodically change the stiffness of the hairspring 4.
  • the prestressing of the hairspring and the radial position of the counting point are also periodically modified.
  • a rotating mobile 28 is used that is inhomogeneously magnetized to periodically modify the rigidity of the spring 4 by the phenomenon of magnetostriction.
  • a regulator device 2 comprising a similar rotating mobile 28, this time equipped with electrets at its periphery, and whose electric field cooperates periodically with at least one electret placed on the external terminal curve 17 of the spiral 4, to periodically change the rigidity of the spiral 4, by the phenomenon of piezoelectricity.
  • the rigidity is modulated through a temperature variation.
  • the regulation frequency ⁇ R is twice the natural frequency ⁇ 0.
  • the relative amplitude of the modulation of the real part of the rigidity of the resonator mechanism 1 is greater than twice the inverse of the quality factor of the resonator mechanism 1.
  • the invention also relates to a watch movement 10, comprising at least one clocking resonator mechanism 1 designed to oscillate at a natural frequency ⁇ 0, this clock resonator mechanism 1 comprising at least one elastic return means 40 comprising at least a hairspring 4 or a torsion wire 46 or a flexible guide.
  • this movement 10 comprises at least one regulating device 2 controlling a periodic variation of the rigidity of the elastic return means 40 with a regulation frequency ⁇ R, which is between 0.9 times and 1.1 times the value of an integer multiple of the natural frequency ⁇ 0 of the resonator 1, said integer being greater than or equal to 2 and less than or equal to 10.
  • the clockwork resonator mechanism 1 comprises at least one balance spring-balance 3, the spiral 4 constitutes the elastic return means 40 and is held between a stud 5 at a first outer end 6 and a ferrule 7 to a second internal end 8, and the regulator device 2 controls a periodic variation of the rigidity of the spiral 4.
  • the movement 10 comprises an additional turn 18 fixed to this spring 4 in at least a first junction point 19 and lining locally with the external terminal curve 17 of the spiral 4.
  • the regulating device 2 periodically makes twists of opposite directions on the outer terminal curve 17 and on the additional turn 18, by acting on the stud 5 for the outer terminal curve 17, and on one end 18A of the additional turn 18 opposite this first connection point 19.
  • the movement 10 comprises an additional turn 18 fixed to this spring 4 at at least a first junction point 19 and lining locally with the external terminal curve 17 of the spring 4, and the regulating device 2 periodically moves on an end 18A of the additional turn 18 opposite this first junction point 19.
  • the additional turn 18 is either of flexibility equivalent to that of the external terminal curve 17, or much more rigid than the external terminal curve 17.
  • the movement 10 comprises an arm 20 fixed to the outer end curve 17 of the hairspring 4 at at least a second junction point 21, and the regulating device 2 periodically moves on one end 22 of the arm 20 opposite to this second junction point 21.
  • the arm 20 is more rigid than the external terminal curve 17.
  • the movement 10 comprises, in the vicinity of the outer terminal curve 17 of the spiral 4, another turn 23 which is maintained at a first end by a support 24 operated by the regulating device 2, and which is free at a second end 25 arranged to periodically come into contact with the external terminal curve 17 under the action of the regulating device 2 on this support 24.
  • the hairspring 4 comprises at least two conductive strips 41, 42, separated by insulating elements 43, and the regulating device 2 is arranged to periodically subject the two blades 41, 42 to an electric and / or magnetic field (in the broad sense , according to the definition of fields above), so as to change the gap E1, E2, between the two blades 41, 42, and thus to modify the total section and the rigidity of the spiral 4.
  • the regulator 2 is arranged to periodically subject the two blades 41, 42 to a different electric field.
  • the regulating device 2 comprises a rotating mobile 28 equipped with magnets 29 at its periphery and whose magnetic field cooperates periodically with at least one magnet 45 placed on the external terminal curve 17 of the spiral 4, to periodically modify the rigidity of the spiral 4 .
  • the resonator mechanism 1 comprises at least one rocker 26 comprising a ferrule 7 holding a torsion wire 46 which constitutes the elastic return means 40, and the regulating device 2 controls a periodic variation of the tension of the torsion wire 46.
  • layers or electrostatic elements may be implemented to vary the rigidity of a spring or spiral by covering it partially or completely with a piezoelectric layer activated by a small electronic module.
  • the regulation frequency ⁇ R of the regulating device 2 is twice the natural frequency ⁇ 0 of the resonator mechanism 1.
  • the invention also relates to a timepiece, more particularly a watch, comprising at least one such watch movement 10.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Electric Clocks (AREA)
  • Vibration Prevention Devices (AREA)
  • Control Of Position Or Direction (AREA)
EP15153321.3A 2014-02-17 2015-01-30 Frequenzregulierung eines Uhrresonators durch Einwirkung auf die Steifheit eines elastischen Rückstellmittels Active EP2908191B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15153321.3A EP2908191B1 (de) 2014-02-17 2015-01-30 Frequenzregulierung eines Uhrresonators durch Einwirkung auf die Steifheit eines elastischen Rückstellmittels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14155433.7A EP2908188B1 (de) 2014-02-17 2014-02-17 Regulierung eines resonators einer uhr durch einwirkung auf die steifheit eines elastischen rückstellmittels
EP15153321.3A EP2908191B1 (de) 2014-02-17 2015-01-30 Frequenzregulierung eines Uhrresonators durch Einwirkung auf die Steifheit eines elastischen Rückstellmittels

Publications (3)

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EP2908191A2 true EP2908191A2 (de) 2015-08-19
EP2908191A3 EP2908191A3 (de) 2015-09-02
EP2908191B1 EP2908191B1 (de) 2020-03-18

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EP14155433.7A Active EP2908188B1 (de) 2014-02-17 2014-02-17 Regulierung eines resonators einer uhr durch einwirkung auf die steifheit eines elastischen rückstellmittels
EP15153321.3A Active EP2908191B1 (de) 2014-02-17 2015-01-30 Frequenzregulierung eines Uhrresonators durch Einwirkung auf die Steifheit eines elastischen Rückstellmittels

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EP14155433.7A Active EP2908188B1 (de) 2014-02-17 2014-02-17 Regulierung eines resonators einer uhr durch einwirkung auf die steifheit eines elastischen rückstellmittels

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US (1) US9201400B2 (de)
EP (2) EP2908188B1 (de)
JP (1) JP5997305B2 (de)
CN (1) CN104849994B (de)
RU (1) RU2015105166A (de)

Cited By (2)

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WO2024141600A1 (fr) * 2022-12-28 2024-07-04 Csem Système réglant pour mouvement horloger
WO2024141601A1 (fr) * 2022-12-28 2024-07-04 Rolex Sa Système réglant pour mouvement horloger

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EP2908184B1 (de) * 2014-02-17 2017-10-18 The Swatch Group Research and Development Ltd. Wartungs- und Regulierungsverfahren eines Uhrenresonators
WO2018177774A1 (fr) * 2017-03-28 2018-10-04 The Swatch Group Research And Development Ltd Piece d'horlogerie mecanique comprenant un mouvement dont la marche est amelioree par un dispositif de correction
EP3457223A1 (de) * 2017-09-14 2019-03-20 The Swatch Group Research and Development Ltd Piezoelektrisches element für einen schaltkreis zur frequenzselbstregulierung, schwingendes mechanisches system und dieses umfassende vorrichtung
EP3457224B1 (de) * 2017-09-14 2020-10-28 The Swatch Group Research and Development Ltd Piezoelektrisches element für einen schaltkreis zur frequenzselbstregulierung, schwingendes mechanisches system und dieses umfassende vorrichtung, und herstellungsverfahren eines solchen piezoelektrischen elements
CH714480A2 (fr) 2017-12-20 2019-06-28 Swatch Group Res & Dev Ltd Dispositif de réglage autonome de la longueur active d'un spiral.
EP3629103B1 (de) * 2018-09-28 2021-05-12 The Swatch Group Research and Development Ltd Uhr, die ein mechanisches uhrwerk umfasst, dessen ganggenauigkeit durch eine elektronische vorrichtung reguliert wird
EP4009115A1 (de) * 2020-12-02 2022-06-08 Omega SA Spiralfeder für resonatormechanismus eines uhrwerks, der mit mitteln zum ausgleichen der starrheit ausgestattet ist
EP4016193A1 (de) * 2020-12-18 2022-06-22 Omega SA Resonatormechanismus eines uhrwerks mit flexibler führung, die mit mitteln zur einstellung der steifigkeit ausgestattet ist
EP4187326A1 (de) * 2021-11-29 2023-05-31 Omega SA Spiralfeder für resonatormechanismus eines uhrwerks, der mit mitteln zum ausgleichen der starrheit ausgestattet ist
EP4357858A1 (de) * 2022-10-18 2024-04-24 Omega SA Spiralfeder für resonatormechanismus einer uhr mit mitteln zur einstellung der steifigkeit
CN115603698B (zh) * 2022-11-28 2023-05-05 电子科技大学 一种基于弹性软化效应的可调谐薄膜体声波谐振器
CN118583161B (zh) * 2024-06-11 2025-06-20 浙江大学 一种谐振式微小型旋转调制平台
JP7700352B1 (ja) * 2024-12-04 2025-06-30 善郎 水野 機械式時計の精度向上装置

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Publication number Priority date Publication date Assignee Title
WO2024141600A1 (fr) * 2022-12-28 2024-07-04 Csem Système réglant pour mouvement horloger
WO2024141601A1 (fr) * 2022-12-28 2024-07-04 Rolex Sa Système réglant pour mouvement horloger

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US20150234356A1 (en) 2015-08-20
RU2015105166A (ru) 2016-09-10
JP5997305B2 (ja) 2016-09-28
EP2908191A3 (de) 2015-09-02
CN104849994A (zh) 2015-08-19
HK1213646A1 (zh) 2016-07-08
US9201400B2 (en) 2015-12-01
EP2908191B1 (de) 2020-03-18
RU2015105166A3 (de) 2018-09-20
EP2908188A1 (de) 2015-08-19
CN104849994B (zh) 2017-12-05
JP2015152604A (ja) 2015-08-24
EP2908188B1 (de) 2018-06-27

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