EP3265879B1 - Mouvement horloger à régulateur à résonance tridimensionnelle magnétique - Google Patents

Mouvement horloger à régulateur à résonance tridimensionnelle magnétique Download PDF

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Publication number
EP3265879B1
EP3265879B1 EP16707124.0A EP16707124A EP3265879B1 EP 3265879 B1 EP3265879 B1 EP 3265879B1 EP 16707124 A EP16707124 A EP 16707124A EP 3265879 B1 EP3265879 B1 EP 3265879B1
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EP
European Patent Office
Prior art keywords
oscillating
regulator
systems
timepiece
magnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP16707124.0A
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German (de)
English (en)
French (fr)
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EP3265879A1 (fr
Inventor
Mathias Buttet
Jean-Michel BLUMENTHAL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hublot SA
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Hublot SA
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Publication of EP3265879A1 publication Critical patent/EP3265879A1/fr
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    • 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
    • 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
    • G04B17/02—Oscillators acting by gravity, e.g. pendulum swinging in a plane
    • 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
    • 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
    • G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance

Definitions

  • the present invention relates to an oscillating regulator for a timepiece, and a timepiece assembly integrating such a regulator. It therefore also relates to a timepiece movement and a timepiece as such incorporating such a regulator, and particularly a watch, such as a wristwatch, as such incorporating such a regulator.
  • the accuracy of a conventional mechanical watch depends largely on the operation of its regulator.
  • the latter generally takes the form of an oscillating system, most of the time comprising a balance-spring assembly or a pendulum.
  • This oscillating system has a clean and stable operating frequency, which is used to impose controlled time measurement on the watch. It is linked to an energy accumulator, like a barrel, which delivers energy to an escapement via a gear train. The escapement then periodically transmits pulsations to the oscillating system to sustain its oscillations over time.
  • the energy distribution system to the oscillating system is designed to maintain the oscillating movements without disturbing them.
  • some solutions are based on complex mechanical systems.
  • vortex-based solutions the principle of which is to set the regulator in motion around one or more axes of rotation to finally make its overall operation less dependent on orientation.
  • These complex solutions are very expensive and the improvement in the precision of the regulator based on an oscillating system is only achieved at the cost of fine-tuning a complex mechanical system, which is not easy.
  • the document FR2210787 discloses an oscillating regulator for a timepiece, comprising two resonant oscillating systems each comprising a magnetic component suitable for exchanging magnetic energy during their oscillations, where the axes of the two oscillating systems have a different orientation.
  • the general object of the invention is to propose a solution for measuring time for a timepiece which does not include all or part of the drawbacks of the solutions of the state of the art.
  • a first object of the invention is to provide a time measurement solution making it possible to achieve high precision, in particular for use within a wristwatch, in particular making it possible to greatly reduce, or even cancel, the harmful effect of gravity on the isochronism of the watch.
  • a second object of the invention is to provide a space-saving solution for measuring time, compatible with use within a watch, in particular a wristwatch.
  • the invention is based on an oscillating regulator for a timepiece, as claimed in the appended claim 1.
  • magnetic component we mean a component sensitive to a magnetic field: it can be either a so-called magnetized component such as a permanent or non-permanent magnet, i.e. a component generating a specific magnetic field. important, that is to say a so-called magnetizable component, ie retaining almost no magnetic field after excitation, this is for example the case of materials called soft ferromagnetic materials.
  • the oscillating regulator for a timepiece comprises a primary oscillating system, exerting a magnetic force on at least one other secondary oscillating system, each secondary oscillating system being such that two secondary oscillating systems exert practically no magnetic force or even no magnetic force l on top of each other.
  • the primary oscillating system comprises at least one magnetic component comprising a magnetized component, in particular a magnet, and at least one secondary oscillating system comprising a magnetic component made of magnetizable material.
  • the oscillating regulator for a timepiece comprises three or an odd number of resonant oscillating systems greater than three, of different orientations.
  • the oscillating regulator can comprise at least one platform connecting all the oscillating systems together.
  • each oscillating system can be mounted on the same platform so that each oscillating system only has a rotational movement with respect to this platform.
  • the oscillating systems can all be of the same type, in particular of the balance-spring or pendulum type.
  • the axes of rotation of each of its oscillating systems can be oriented at an angle less than or equal to 60 degrees with respect to a central axis, or the axes of rotation of each of its oscillating systems can be mounted on contiguous faces of a cube.
  • the invention also relates to a watch movement, characterized in that it comprises an oscillating regulator as described above.
  • the horological movement can comprise a power source and a train for the transmission of power from the power source to a single primary oscillating system, the magnetic components of which exert a magnetic force on each other secondary oscillating system of the regulator.
  • the secondary oscillating systems of the oscillating regulator can hardly exert any magnetic force on each other, or even exert no magnetic force on each other.
  • the invention also relates to a timepiece, in particular a watch or a wristwatch, characterized in that it comprises an oscillating regulator as described above or a timepiece movement as described above.
  • the timepiece may comprise a dial and the oscillating systems of the oscillating regulator may be evenly distributed around a central axis substantially perpendicular to the dial.
  • the invention also relates to a watch which comprises a single energy source, linked to a single primary oscillating system of the oscillating regulator by one or more gear train(es).
  • the invention also relates to a method for measuring time as claimed in the appended claim 14.
  • FIG. 1 thus represents an oscillating regulator, with three-dimensional resonance, according to one embodiment, which comprises a platform 1 forming a pyramid, on which are arranged three oscillating systems 20, 30, 40 operating in resonance, of the balance-spring type in this mode of achievement.
  • Platform 1 is fixed relative to the plate supporting the other components of the watch movement.
  • the platform 1 is in the form of a cube or part of a cube, of which three adjacent faces, perpendicular to each other, form support surfaces 2, 3, 4 respectively for each of the three identical oscillating systems.
  • each oscillating system 20, 30, 40 is of the spiral balance type.
  • the first spiral balance is arranged around an axis of rotation 22, mounted perpendicular to the surface 2.
  • This system oscillating further comprises in known manner a balance, comprising a rim 23 fulfilling the function of flywheel, mounted rotatably about the axis of rotation 22, by means of a spiral spring simply called balance spring 24
  • the balance-spring is commonly used in the field of watchmaking and will not be detailed here.
  • two other assemblies of the balance-spring type are arranged around axes of rotation 32, 42 arranged respectively on the surfaces 3, 4 of the platform 1, and forming two other oscillating systems of the regulator.
  • the oscillating regulator is composed of three complementary oscillating systems, all three of which have different orientations. In the proposed embodiment, these orientations are perpendicular to each other.
  • the oscillating systems can be mounted on three faces of a non-cubic pyramid, having non-perpendicular faces.
  • This pyramid may have a central axis and the three oscillating systems may be arranged on three planes of the pyramid distributed homogeneously around this central axis.
  • the three oscillating systems are arranged on three contiguous faces of a cube, that is to say that the surfaces 2, 3, 4 are perpendicular to each other and coincide with the three faces of a cube.
  • these surfaces could coincide with certain surfaces of a regular polyhedron, not necessarily cubic.
  • a technical problem with such a three-dimensional resonance oscillating regulator configuration stems from the size it requires due to the use of several oscillating systems and their arrangement in three dimensions of space.
  • a technical solution consists in minimizing the overall height of the regulator.
  • the surfaces 2, 3, 4 can be slightly inclined with respect to each other, that is to say that the axes of rotation 22, 32, 42 of the oscillating systems would have angles preferably less than or equal to 60 degrees, even less than or equal to 50 degrees.
  • the regulator according to the embodiment comprises a particular oscillating system 30, called primary oscillating system, associated, in a clockwork movement not shown, with a conventional energy distribution system, which allows for example a single wheel to escapement 7 to transmit to it energy pulses maintaining its oscillations, via an anchor for example, in a known manner.
  • a particular oscillating system 30, called primary oscillating system associated, in a clockwork movement not shown, with a conventional energy distribution system, which allows for example a single wheel to escapement 7 to transmit to it energy pulses maintaining its oscillations, via an anchor for example, in a known manner.
  • This primary oscillating system 30 is equipped with magnetic components 35, more particularly visible on the figure 2 .
  • two small magnetic flyweights are fixed to the rim 33, at 180 degrees around the axis 32 to guarantee a dynamic balance of the rim.
  • the two other oscillating systems called secondary oscillating systems, are also equipped with magnetic components 25, 45.
  • these magnetic components are likewise two magnetic flyweights evenly distributed on the edge 23, 43 of their balances .
  • the three oscillating systems, primary and secondary have the same structure, including magnetic components suitable for exchanging magnetic energy.
  • the two secondary oscillating systems 20, 40 are independent of each other.
  • their magnetic components 25, 45 exert no force (or a negligible force) on each other.
  • the magnetic components 35 of the primary oscillating system 30 are permanent magnets, more simply called magnets, while the magnetic components 25, 45 of the secondary oscillating systems 20, 40 are simple magnetizable elements, which are sensitive to the magnetic field exerted by the magnets of the primary oscillating system but exert almost no force on each other.
  • the magnetic components 25, 45 of the secondary oscillating systems are arranged offset at 90 degrees on their respective edge 23, 43, so that during their oscillations, which are in phase due to the resonance phenomenon which will be specified below, when one of them is in its closest possible position to the rim of the other secondary oscillator, the magnetic components of this other rim are in a position away from this magnetic component, from preferably the furthest position, of the order of 90 degrees from this position.
  • the embodiment has been described by way of non-limiting example, and there are many possible variants for the magnetic components of each oscillating system.
  • Each magnetic component of a secondary oscillating system can be in a magnetizable material of the ferromagnetic type, for example a soft iron pellet coated with an anti-corrosion layer, for example nickel.
  • Each magnetic component can be in the form of a magnetic cylinder, fixed in a hole made in the rim of an oscillating system.
  • the magnetic component may have another shape.
  • This attachment to the oscillating system can be done by driving, gluing, welding, or riveting in a socket.
  • the latter can be mounted mobile on the oscillating system, in particular by screwing thanks to a thread made around it.
  • the magnetic component can comprise a threaded zone for its fixing by screwing into a corresponding threaded opening of the oscillating system.
  • each magnetic component of cylindrical shape, extends in a direction perpendicular to the axis of rotation of the oscillating system.
  • the magnetic component could be fixed according to another orientation, for example parallel to this axis of rotation.
  • a magnetic component can be formed directly by a component of the oscillating system itself, for example part or all of the serge.
  • the magnetic components exert repulsive forces on each other for the transfer of magnetic energy from a primary oscillating system to another secondary.
  • this force could be a magnetic force of attraction.
  • the three oscillating systems 20, 30, 40 of this embodiment are of the same nature, have the same oscillating geometries. They will tend naturally towards coherent oscillations, in phase, by the phenomenon called resonance in the state of the art.
  • the primary oscillating system 30 will share part of its energy received with two secondary oscillating systems 20, 40, by a transmission of magnetic energy, as explained above, and this architecture will automatically induce the in-phase oscillations of the three oscillators 20, 30, 40, by the phenomenon of resonance.
  • this configuration allows the regulator to be less dependent on the effect of the gravitational force, to have an operation less dependent on its orientation, which is particularly interesting in an implementation within a wristwatch case. .
  • a first oscillating system of the regulator has its axis oriented in an unfavorable direction, increasing friction and resistance to its natural oscillation, in particular for example when its pendulum is in a perpendicular direction (i.e. say that its axis of rotation is horizontal), at least one other oscillating system will not be in this unfavorable direction.
  • this other oscillating system on the first oscillating system will oppose the harmful influence of the gravitational force and the result obtained at the output of the regulator will be on the one hand more precise than if there were no than the first oscillating system, and on the other hand more stable, since less dependent on the orientation of the regulator.
  • at least one other pendulum when a pendulum is in a vertical position, in which gravity generally upsets its ideal functioning, at least one other pendulum will be in a non-vertical position, and preferably close to the horizontal, of so as to benefit from a functioning less, if at all, disturbed by gravity.
  • the regulator used implements a solution of three-dimensional resonance, by choosing at least two oscillating systems operating in resonance and oriented differently. This three-dimensional resonance makes it possible to obtain a result that is surprisingly more precise than all the resonance solutions previously tried in the state of the art.
  • the regulator comprises three oscillating systems.
  • Other embodiments can be obtained by choosing any other number of oscillating systems, at least two as mentioned above.
  • at least two oscillating systems do not have the same orientation.
  • all the oscillating systems will have a different orientation, and will be distributed homogeneously in space to optimize their non-dependence on the orientation of the regulator.
  • their axes of rotation can be equally distributed around a certain axis.
  • the main components of the oscillating systems such as a balance wheel, a hairspring, a pendulum, etc., can also be distributed homogeneously around this same axis.
  • oscillating systems retained in the embodiment described are of the balance-spring type.
  • any other oscillating system can alternatively be used, such as oscillating systems based on pendulum.
  • Each oscillating system is adjustable, in order to determine the ideal setting for their operation in resonance.
  • the oscillating systems are interconnected by means of one or, alternatively, two platforms, on which one or the ends of their axes are mounted.
  • all the balance wheels are topped by a balance bridge (shell) fitted with a gear system allowing adjustment of each of the hairsprings independently.
  • These platforms and the oscillating systems can also then form a compact and solid assembly, mechanically linked, and allowing a transmission of mechanical energy between the oscillating systems, complementary to the transmission of magnetic energy described, and favoring the setting in resonance of these different systems.
  • the entire regulator has its own oscillating property, its own oscillation frequency, called the resonance frequency.
  • the platform which is presented in a single piece, monolithic, and offers an arrangement with a small distance between the various oscillating systems.
  • the platform will advantageously be made of a material with favorable vibratory properties, such as brass, a noble metal, or the like.
  • a platform could be composed of separate parts fixed together. Certain ends of oscillating systems could be linked to a platform and other ends could remain free. All the regulator's oscillating systems are not necessarily linked to the same platform.
  • a specific, dedicated platform has been provided in the embodiment.
  • the platform function can be fulfilled by a component of the timepiece such as a plate, a dial, a bridge, etc.
  • the oscillating systems can be arranged on separate and independent platforms, or mounted in any way close to each other, the components magnetic enough to resonate them. It suffices that in their oscillations, magnetic components traverse a trajectory such that they pass nearby to exert an impulse on each other necessary and sufficient for the oscillation movement of the secondary oscillating systems.
  • some or even all of the other elements forming the watch movement are made of materials that are not very sensitive to magnetic fields.
  • each oscillating system is only mobile in rotation around its axis of rotation with respect to the rest of the watch, in particular with respect to one or more platforms of the watch to which it is linked.
  • the axis of rotation of each oscillating system is fixed relative to the clockwork movement or the watch.
  • the geometry of the platform 1 has been described by way of non-limiting example. It could naturally take any other shape, be formed of several surfaces that are not necessarily planar, but curved, or even of a single curved surface, since it allows the assembly according to different orientations of at least two oscillating systems.
  • the planes perpendicular to the axes of the various oscillating systems can thus form part of an irregular polyhedron, that is to say that certain surfaces of an irregular polyhedron could be perpendicular to the axes of rotation of the oscillating systems of the regulator.
  • the regulator described previously performs particularly well within a wristwatch. Of course, it is also useful for any wider implementation within any watch movement, for any timepiece.
  • the principle of the three-dimensional resonance regulator remains compatible with other approaches making it possible to improve the precision of the regulator.
  • it can for example be combined with a swirl-like solution.
  • the three-dimensional resonance regulator makes it possible to greatly reduce, or even cancel, the harmful effect of gravity and more generally of the various defects of the oscillating systems on the isochronism of the watch.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
EP16707124.0A 2015-03-04 2016-03-01 Mouvement horloger à régulateur à résonance tridimensionnelle magnétique Active EP3265879B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00292/15A CH710817B1 (fr) 2015-03-04 2015-03-04 Mouvement horloger à régulateur résonant à interaction magnétique.
PCT/EP2016/054300 WO2016139196A1 (fr) 2015-03-04 2016-03-01 Mouvement horloger à régulateur à résonance tridimensionnelle magnétique

Publications (2)

Publication Number Publication Date
EP3265879A1 EP3265879A1 (fr) 2018-01-10
EP3265879B1 true EP3265879B1 (fr) 2023-04-26

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EP16707124.0A Active EP3265879B1 (fr) 2015-03-04 2016-03-01 Mouvement horloger à régulateur à résonance tridimensionnelle magnétique

Country Status (6)

Country Link
US (1) US10481556B2 (ja)
EP (1) EP3265879B1 (ja)
JP (1) JP6723256B2 (ja)
CN (1) CN107533320B (ja)
CH (1) CH710817B1 (ja)
WO (1) WO2016139196A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP1610646S (ja) * 2017-09-14 2018-08-06
EP3719588B1 (fr) * 2019-04-03 2021-11-03 The Swatch Group Research and Development Ltd Oscillateur horloger auto-réglable

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2616681A (en) * 1948-07-15 1952-11-04 Sperry Corp Angular velocity responsive apparatus
US3183426A (en) * 1962-02-14 1965-05-11 Cons Electronics Ind Magnetically coupled constant speed system
CH594201B5 (ja) * 1972-12-13 1977-12-30 Ebauches Sa
DE602004028972D1 (de) 2004-09-22 2010-10-14 Antoine Preziuso Geneve Sa Tourbillon für Uhrwerk und dieses enthaltende Uhrwerk
CH698622B1 (fr) * 2004-12-21 2009-09-15 Gfpi S A Mouvement de pièce d'horlogerie comportant un différentiel et deux échappements.
WO2008101802A2 (fr) 2007-02-08 2008-08-28 Complitime Sa Mouvement de montre
CH702294B1 (fr) * 2009-11-16 2014-05-30 Complitime Sa Mouvement pour pièce d'horlogerie.
CH704063B1 (fr) 2010-11-09 2013-07-31 Complitime Sa Pièce d'horlogerie
CH704062A2 (fr) * 2010-11-09 2012-05-15 Montres Breguet Sa Dispositif antichoc magnétique pour la protection d'un composant horloger.
EP2615504A1 (fr) 2012-01-13 2013-07-17 Manufacture Roger Dubuis S.A. Mouvement d'horlogerie a balanciers inclinés
CH708038B1 (fr) 2013-05-07 2017-12-15 Hublot S A Genève Mouvement horloger à régulateur à résonance tridimensionelle.

Also Published As

Publication number Publication date
WO2016139196A1 (fr) 2016-09-09
CN107533320A (zh) 2018-01-02
US20180074459A1 (en) 2018-03-15
JP2018507412A (ja) 2018-03-15
CH710817B1 (fr) 2019-07-15
EP3265879A1 (fr) 2018-01-10
US10481556B2 (en) 2019-11-19
JP6723256B2 (ja) 2020-07-15
CH710817A2 (fr) 2016-09-15
CN107533320B (zh) 2020-04-21

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