EP2891929B1 - Magnetic or electrostatic resonator - Google Patents

Magnetic or electrostatic resonator Download PDF

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Publication number
EP2891929B1
EP2891929B1 EP14186652.5A EP14186652A EP2891929B1 EP 2891929 B1 EP2891929 B1 EP 2891929B1 EP 14186652 A EP14186652 A EP 14186652A EP 2891929 B1 EP2891929 B1 EP 2891929B1
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EP
European Patent Office
Prior art keywords
mobile component
timepiece
resonator
mobile
drive member
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.)
Active
Application number
EP14186652.5A
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German (de)
French (fr)
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EP2891929A3 (en
EP2891929A2 (en
Inventor
Marc Stranczl
Gianni Di Domenico
Pascal Winkler
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.)
Nivarox Far SA
Original Assignee
Nivarox Far SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from EP13199427.9A external-priority patent/EP2887157B1/en
Priority claimed from EP14184158.5A external-priority patent/EP2889701B1/en
Priority claimed from EP14185638.5A external-priority patent/EP2998801A1/en
Priority to EP14186652.5A priority Critical patent/EP2891929B1/en
Application filed by Nivarox Far SA filed Critical Nivarox Far SA
Priority to US15/102,389 priority patent/US9651920B2/en
Priority to PCT/EP2014/076991 priority patent/WO2015096976A2/en
Priority to CN201480070592.2A priority patent/CN105849653B/en
Priority to RU2016130281A priority patent/RU2624713C1/en
Priority to JP2016541686A priority patent/JP6166847B2/en
Publication of EP2891929A2 publication Critical patent/EP2891929A2/en
Publication of EP2891929A3 publication Critical patent/EP2891929A3/en
Publication of EP2891929B1 publication Critical patent/EP2891929B1/en
Application granted granted Critical
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Anticipated expiration legal-status Critical

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C5/00—Electric or magnetic means for converting oscillatory to rotary motion in time-pieces, i.e. electric or magnetic escapements
    • G04C5/005—Magnetic or electromagnetic means
    • 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
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton

Definitions

  • the invention relates to a clock resonator comprising a mobile ring around an axis and arranged able to oscillate, and a trainer subjected to a torque in a watch movement.
  • the invention also relates to a watchmaking movement comprising, fixed on a plate, energy storage means arranged to deliver said torque to an actuating train of a mechanism comprising such an annular resonator, with a said fixed mobile by flexible blades to said platen, and a said trainer driven by said train, said trainer controlling means for displaying said movement.
  • the invention also relates to a timepiece comprising such a movement.
  • the invention relates to the field of the regulation of mechanical timepieces, in particular mechanical watches.
  • the document FR2132162 in the name of HORSTMANN MAGNETICS describes magnetic drive and exhaust mechanisms for rotor, in which the coupling existing between a mechanically oscillating member and a rotor is purely magnetic and without mechanical interaction.
  • the rotor comprises a disc made of ferromagnetic material and having on its entire periphery an even number of spokes or arms regularly distributed, and shaped so that the outer ends of each pair of arms or neighboring radii circumferentially are offset in an axial direction relative to the plane of symmetry perpendicular to the axis of rotation of the rotor.
  • the mechanism comprises an oscillating member, such a rotor whose axis of rotation is parallel to the oscillation direction of the oscillating member, and an annular magnetic member carried by the oscillating member and at least partially surrounding the periphery of the rotor , this rotor being magnetically coupled with the poles of the magnetic member so that the rotational driving moments oriented in the same direction as the rotation are exerted on the rotor at a large number of positions around the periphery of the rotor when oscillation of the oscillating organ.
  • an oscillating member such a rotor whose axis of rotation is parallel to the oscillation direction of the oscillating member
  • an annular magnetic member carried by the oscillating member and at least partially surrounding the periphery of the rotor , this rotor being magnetically coupled with the poles of the magnetic member so that the rotational driving moments oriented in the same direction as the rotation are exerted on the rotor at a large number of positions around the periphery of
  • the document BE530509A in the name of PHILIPS describes a device for stabilizing the speed of a motor, where this motor is loaded at least by a mechanical resonance system operating in the vicinity of its resonant frequency, the system of which the resisting torque, strongly increasing at the resonance, has a stabilizing effect on the rotational speed of the motor.
  • the invention proposes to create mechanisms that have a higher efficiency than conventional resonators.
  • the invention relates to a clock resonator according to claim 1.
  • the invention also relates to a watchmaking movement comprising, fixed on a plate, energy storage means arranged to deliver said torque to an actuating train of a mechanism comprising such an annular resonator, with a said fixed mobile by flexible blades to said platen, and a said trainer driven by said train, said trainer controlling means for displaying said movement.
  • the invention also relates to a timepiece comprising such a movement, characterized in that this piece is a watch.
  • the invention can be implemented with magnetic or electrostatic fields and is more particularly illustrated in a magnetic variant.
  • the invention relates to a clock resonator 6, comprising a mobile 7 arranged able to oscillate about an axis A, and a driver 8 subjected to a torque in a watch movement 10.
  • this resonator is a substantially annular magnetic or electrostatic resonator 6, the mobile 7 of which is excited periodically under the action induced by the movement of the driver 8, which driver 8 is arranged to exert an effort without contact on the mobile 7.
  • the mobile 7 is flexible and deformable at least in a plane perpendicular to the axis A, and mobile 7 comprises a first magnetic zone or electrified in a first step, and the driver 8 has a second magnetized zone or electrified according to a second no different from said first step, arranged to cooperate in attraction or repulsion with this first zone, so that the mobile 7 and the driver 8 together constitute a gear reduction mechanism or multiplier.
  • the interaction can be between a magnetic element, respectively electrified, and a conductive track, or dielectric respectively.
  • the mobile 7 comprises a first quantity of first magnetic or electrically polar masses 76 in a first step
  • the driver 8 comprises a second quantity of second magnetized polar masses 86 or electrified according to a second step different from the first step.
  • These second polar masses 86 are arranged to cooperate in attraction or repulsion with the first polar masses 76, so that the mobile 7 and the driver 8 together constitute a gear reduction mechanism or multiplier.
  • the first amount differs from the second amount.
  • the first quantity differs from the second quantity by one unit.
  • the speed of the driver 8 defines a speed of propagation of a wave of deformation in the material of the mobile 7 all around thereof.
  • the speed of the driver 8 defines a stationary oscillation wave of the mobile 7 between repetitive forms corresponding to stationary modes.
  • the movement of the driver 8 comprises at least one pivoting movement.
  • the movement of the driver 8 is a pivoting movement about the axis A.
  • the mobile 7 is fixed to a plate 5 that includes the watch movement 10 by a plurality of flexible blades 9.
  • these flexible blades 9 are more flexible than the mobile 7, arranged to hold the mobile 7 substantially centered on the axis A, and to restrict the oscillatory movements of the mobile 7 in the same plane P perpendicular to said axis A with limited displacements of the center of inertia of the mobile 7 lower than one tenth of the smallest outer dimension of the mobile 7 in the plane P.
  • these flexible blades 9 are more rigid than the mobile 7, arranged to maintain the mobile 7 substantially centered on the axis A, and to restrict the movements of the mobile 7 in a plane P perpendicular to said axis A with displacements limited to the center of inertia of the mobile 7 less than one-tenth of the smallest outer dimension of the mobile 7 in the plane P.
  • the mobile 7 is weighted on its periphery, continuously or periodically.
  • the mobile 7 is ballasted by a plurality of weights.
  • the mobile 7 has sections and / or variable thickness along its periphery.
  • the mobile 7 is made of micro-machinable material or silicon and has a rectangular section in any plane passing through the axis A.
  • the mobile 7 is monobloc with a plurality of flexible blades 9 connecting with a plate 5 that includes the watch movement 10.
  • the mobile 7 is in one piece with the plurality of flexible blades 9 and with the plate 5.
  • the mobile 7 has, in an unconstrained free state, a polygonal or multi-lobed shape in a plane P orthogonal to the axis A.
  • the mobile 7 is a ring coaxial with the coach 8.
  • the mobile 7 is a solid at least partially deformable in the direction of the axis A
  • the invention also relates to a clockwork movement 10 comprising, fixed on a plate 5, energy storage means 3, in particular a cylinder, arranged to deliver torque to an actuating gear 2 of a mechanism 1 comprising such an annular resonator 6, with such a mobile 7 fixed by flexible blades 9 to the plate 5, and such a driver 8, including an escape wheel, driven by the gear 2, the driver 8 preferably controlling means display 4 of the movement 10.
  • the invention also relates to a timepiece 100 comprising a movement 10.
  • this timepiece 100 is a watch.
  • the mobile 7 comprises first polar masses 76, and the driver 8 comprises second polar masses 86.
  • the number of polar masses on each structure is chosen so that, for a given angle of the driver 8, the masses polar at 12h and 6h of the mobile 7 and coach 8 are opposite each other and the polar masses at 3am and 9am are not opposite each other. For a low angular rotation e of the driver 8, the alignments are reversed.
  • the first polar masses 76 and the second polar masses 86 are aligned.
  • the first polar masses 76 and the second polar masses 86 are not aligned.
  • the alignments are reversed.
  • the polar masses are made with magnets:
  • the driver 8 is polarized radially outwardly and the mobile 7 is polarized radially towards the axis A.
  • the polar masses are aligned, they repel each other.
  • the polar masses are misaligned, they attract each other.
  • FIGS 9 to 11 similar to Figures 6 to 8 , show that by removing polar masses on the mobile 7, we can choose where we want to locate the interaction forces between the two elements.
  • the Figures 12 to 14 go further by keeping only four pairs of first polar masses 76 on the mobile 7, at 90 ° from each other.
  • FIGS 15 and 16 illustrate a first variant of the invention, which consists in using the principle described above to excite a mobile 7 in the form of a partial ring so that it resonates in so-called wineglass mode: the driver 8 synchronizes with the oscillations of the mobile 7 There is no mechanical interaction between the trainer 8 and the mobile 7.
  • the figure 15 is a diagram of the mechanism, where the ring-shaped mobile 7 is only excited at 12h, 3h, 6h and 9h.
  • the figure 16 illustrates its resonance mode in ellipses of variable eccentricity with permutation of the axes.
  • the figure 15A is a variant of the realization of the figure 15 , comprising anti-stall limiting means in the form of mechanical stops.
  • a toothed wheel 40 is secured to the driver 8, and the mobile 7 comprises stops in the form of pins 41.
  • these pins 41 oscillate with the mobile 7, without touching the toothed wheel 40.
  • the drive disc 8 tends to race and turn faster, but then the pins 41 collide with the toothed wheel 40, which avoid runaway.
  • FIGs 17 and 18 illustrate a second variant, which consists in using the principle described above with a mobile 7 in the form of a complete ring, for an excitation mode said hula-hop.
  • the figure 17 is a diagram of the mechanism, where the ring-shaped mobile 7 is excited over its entire circumference, the figure 18 illustrates its particular mode of resonance.
  • a third variant illustrated in figure 19 consists in stacking the driver 8 and the mobile 7, in order to oscillate the mobile 7 in three-dimensional, at least partially in the direction of the axis A, in height, according to the same principle as the first variant.
  • the disc thus takes a form of chips, as visible in figure 20 .
  • a fourth variant (not shown) is the off-plan version of the second variant very close to the third variant.
  • Another variant not illustrated, comprises a driver 8 which, instead of point magnets, has a track that interacts with magnets on the vibrating mobile 7, in the same way as with a magnet-magnets cooperation.
  • the invention makes it possible to eliminate the contacts in the regulating organ, makes it possible to obtain a better quality factor, and increases the efficiency.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromechanical Clocks (AREA)

Description

DomaineField deof l'inventionthe invention

L'invention concerne un résonateur d'horlogerie comportant un mobile en anneau autour d'un axe et agencé apte à osciller, et un entraîneur soumis à un couple dans un mouvement horloger.The invention relates to a clock resonator comprising a mobile ring around an axis and arranged able to oscillate, and a trainer subjected to a torque in a watch movement.

L'invention concerne encore un mouvement d'horlogerie comportant, fixés sur une platine, un moyen de stockage d'énergie agencé pour délivrer ledit couple à un rouage d'actionnement d'un mécanisme comportant un tel résonateur annulaire, avec un dit mobile fixé par des lames flexibles à ladite platine, et un dit entraîneur entraîné par ledit rouage, ledit entraîneur commandant des moyens d'affichage dudit mouvement.The invention also relates to a watchmaking movement comprising, fixed on a plate, energy storage means arranged to deliver said torque to an actuating train of a mechanism comprising such an annular resonator, with a said fixed mobile by flexible blades to said platen, and a said trainer driven by said train, said trainer controlling means for displaying said movement.

L'invention concerne encore une pièce d'horlogerie comportant un tel mouvement.The invention also relates to a timepiece comprising such a movement.

L'invention concerne le domaine de la régulation des pièces d'horlogerie mécaniques, en particulier des montres mécaniques.The invention relates to the field of the regulation of mechanical timepieces, in particular mechanical watches.

Arrière-plan deBackground of l'inventionthe invention

Les nombreux contacts dans un organe réglant altèrent le facteur de qualité et le rendement. Il est de plus, difficile de concilier des fréquences très différentes entre les composants d'un résonateur.The numerous contacts in a regulating organ alter the quality factor and the yield. It is also difficult to reconcile very different frequencies between the components of a resonator.

Le document FR2132162 au nom de HORSTMANN MAGNETICS décrit des mécanismes d'entraînement et d'échappement magnétiques pour rotor, dans lesquels le couplage existant entre un organe oscillant mécaniquement et un rotor est purement magnétique et sans interaction mécanique. Le rotor comprend un disque en matériau ferromagnétique et présentant sur toute sa périphérie un nombre pair de rayons ou de bras régulièrement répartis, et conformés de façon à ce que les extrémités extérieures de chaque paire de bras ou rayons voisins circonférentiellement sont décalées dans une direction axiale par rapport au plan de symétrie perpendiculaire à l'axe de rotation du rotor. Le mécanisme comprend un organe oscillant, un tel rotor dont l'axe de rotation est parallèle à la direction d'oscillation de l'organe oscillant, et un organe magnétique annulaire porté par l'organe oscillant et entourant au moins partiellement la périphérie du rotor, ce rotor étant couplé magnétiquement avec les pôles de l'organe magnétique de sorte que les moments d'entraînement en rotation orientés dans le même sens que la rotation sont exercés sur le rotor au niveau d'un grand nombre de positions autour de la périphérie du rotor lors de l'oscillation de l'organe oscillant.The document FR2132162 in the name of HORSTMANN MAGNETICS describes magnetic drive and exhaust mechanisms for rotor, in which the coupling existing between a mechanically oscillating member and a rotor is purely magnetic and without mechanical interaction. The rotor comprises a disc made of ferromagnetic material and having on its entire periphery an even number of spokes or arms regularly distributed, and shaped so that the outer ends of each pair of arms or neighboring radii circumferentially are offset in an axial direction relative to the plane of symmetry perpendicular to the axis of rotation of the rotor. The mechanism comprises an oscillating member, such a rotor whose axis of rotation is parallel to the oscillation direction of the oscillating member, and an annular magnetic member carried by the oscillating member and at least partially surrounding the periphery of the rotor , this rotor being magnetically coupled with the poles of the magnetic member so that the rotational driving moments oriented in the same direction as the rotation are exerted on the rotor at a large number of positions around the periphery of the rotor when oscillation of the oscillating organ.

Le document BE530509A au nom de PHILIPS décrit un dispositif de stabilisation de la vitesse d'un moteur, où ce moteur est chargé au moins par un système de résonance mécanique fonctionnant dans le voisinage de sa fréquence de résonance, système dont le couple résistant, augmentant fortement à la résonance, exerce un effet stabilisateur sur la vitesse de rotation du moteur.The document BE530509A in the name of PHILIPS describes a device for stabilizing the speed of a motor, where this motor is loaded at least by a mechanical resonance system operating in the vicinity of its resonant frequency, the system of which the resisting torque, strongly increasing at the resonance, has a stabilizing effect on the rotational speed of the motor.

Résumésummary deof l'inventionthe invention

L'invention se propose de créer des mécanismes qui présentent un rendement supérieur aux résonateurs classiques.The invention proposes to create mechanisms that have a higher efficiency than conventional resonators.

A cet effet, l'invention concerne un résonateur d'horlogerie selon la revendication 1.For this purpose, the invention relates to a clock resonator according to claim 1.

L'invention concerne encore un mouvement d'horlogerie comportant, fixés sur une platine, un moyen de stockage d'énergie agencé pour délivrer ledit couple à un rouage d'actionnement d'un mécanisme comportant un tel résonateur annulaire, avec un dit mobile fixé par des lames flexibles à ladite platine, et un dit entraîneur entraîné par ledit rouage, ledit entraîneur commandant des moyens d'affichage dudit mouvement.The invention also relates to a watchmaking movement comprising, fixed on a plate, energy storage means arranged to deliver said torque to an actuating train of a mechanism comprising such an annular resonator, with a said fixed mobile by flexible blades to said platen, and a said trainer driven by said train, said trainer controlling means for displaying said movement.

L'invention concerne encore une pièce d'horlogerie comportant un tel mouvement, caractérisée en ce que cette pièce est une montre.The invention also relates to a timepiece comprising such a movement, characterized in that this piece is a watch.

Description sommaire des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre, en référence aux dessins annexés, où :

  • les figures 1 et 2 représentent, de façon schématisée et en vue en plan, un résonateur annulaire selon l'invention, avec un mobile en anneau dont l'excitation est effectuée par un entraîneur en forme de roue, la figure 1 dans une position où, à 12h et 6h, des premières masses polaires que comporte le mobile en anneau et des deuxièmes masses polaires que comporte l'entraîneur sont alignées, et où, à 3h et 9h, les premières masses polaires et les deuxièmes masses polaires ne sont pas alignées, et la figure 2,dans une position après une faible rotation d'angle de l'entraîneur, les alignements s'inversent ;
  • la figure 3 illustre une réalisation similaire où les masses polaires sont réalisées avec des aimants, et où, sur la figure 4, lorsque les masses polaires sont alignées, elles se repoussent, et sur la figure 5, lorsque les masses polaires sont désalignées, elles s'attirent ;
  • les figures 6 et 7 représentent le diagramme de la force d'interaction entre le mobile et l'entraîneur, en fonction de l'angle de l'entraîneur, correspondant à la figure 6, à 12h en figure 7, et à 9h en figure 8 ;
  • les figures 9 à 11 sont similaires aux figures 6 à 8, avec la suppression de certaines masses polaires sur le mobile, les groupes de masses polaires restants étant positionnés de façon périodique sur la périphérie,
  • les figures 12 à 14 sont aussi similaires aux figures 6 à 8, et ne conservent que quatre paires de premières masses polaires sur le mobile, à 90° les unes des autres ;
  • les figures 15 et 16 illustrent une première variante de l'invention, qui consiste à exciter un mobile en forme d'anneau partiel selon la figure 12, la figure 16 illustre le mode de résonance particulier ; la figure 15A est une variante de la réalisation de la figure 15, comportant des moyens de limitation anti-décrochage sous forme de butées mécaniques
  • les figures 17 et 18 illustrent une deuxième variante, qui consiste à exciter un mobile en forme d'anneau complet, la figure 18 illustre le mode de résonance particulier.
  • une troisième variante illustrée en figure 19 consiste à empiler l'entraîneur et le mobile, oscillant en tridimensionnel, selon la figure 20.
  • la figure 21 est un schéma-blocs illustrant une pièce d'horlogerie comportant un mouvement intégrant un mécanisme selon l'invention.
Other features and advantages of the invention will appear on reading the detailed description which follows, with reference to the appended drawings, in which:
  • the Figures 1 and 2 show schematically and in plan view, an annular resonator according to the invention, with a ring mobile whose excitation is performed by a wheel-shaped driver, the figure 1 in a position where, at 12h and 6h, the first polar masses that comprises the ring mobile and second polar masses that includes the trainer are aligned, and where, at 3h and 9h, the first polar masses and the second polar masses are not not aligned, and the figure 2 in a position after a slight angular rotation of the driver, the alignments are reversed;
  • the figure 3 illustrates a similar embodiment where the polar masses are made with magnets, and where, on the figure 4 when the polar masses are aligned, they repel each other, and on the figure 5 when the polar masses are misaligned, they attract each other;
  • the Figures 6 and 7 represent the diagram of the interaction force between the mobile and the coach, according to the angle of the coach, corresponding to the figure 6 , at 12h in figure 7 , and at 9am in figure 8 ;
  • the Figures 9 to 11 are similar to Figures 6 to 8 with the removal of some polar masses on the mobile, the remaining groups of polar masses being positioned periodically on the periphery,
  • the Figures 12 to 14 are also similar to Figures 6 to 8 , and keep only four pairs of first polar masses on the mobile, at 90 ° from each other;
  • the Figures 15 and 16 illustrate a first variant of the invention, which consists in exciting a mobile in the form of a partial ring according to the figure 12 , the figure 16 illustrates the particular resonance mode; the figure 15A is a variant of the realization of the figure 15 , comprising anti-stall limiting means in the form of mechanical stops
  • the Figures 17 and 18 illustrate a second variant, which consists in exciting a mobile in the form of a complete ring, the figure 18 illustrates the particular resonance mode.
  • a third variant illustrated in figure 19 consists in stacking the trainer and the mobile, oscillating in three-dimensional, according to the figure 20 .
  • the figure 21 is a block diagram illustrating a timepiece comprising a movement incorporating a mechanism according to the invention.

Description détaillée des modes de réalisation préférésDetailed Description of the Preferred Embodiments

On appellera dans la suite de l'exposé anneau un volume similaire à un tore ouvert, se déployant, refermé sur lui-même, autour d'un axe. Cet anneau est sensiblement de révolution autour de cet axe, mais non nécessairement exactement de révolution autour de cet axe.We will call in the following the ring presentation a volume similar to an open torus, unfolding, closed on itself, around an axis. This ring is substantially of revolution about this axis, but not necessarily exactly of revolution around this axis.

L'invention peut être mise en oeuvre avec la mise en jeu de champs magnétiques ou/et électrostatiques, elle est plus particulièrement illustrée dans une variante magnétique.The invention can be implemented with magnetic or electrostatic fields and is more particularly illustrated in a magnetic variant.

L'invention concerne un résonateur d'horlogerie 6, comportant un mobile 7 agencé apte à osciller autour d'un axe A, et un entraîneur 8 soumis à un couple dans un mouvement horloger 10.The invention relates to a clock resonator 6, comprising a mobile 7 arranged able to oscillate about an axis A, and a driver 8 subjected to a torque in a watch movement 10.

Selon l'invention, ce résonateur est un résonateur sensiblement annulaire 6 magnétique ou électrostatique, dont le mobile 7 est excité de façon périodique sous l'action induite par le mouvement de l'entraîneur 8, lequel entraîneur 8 est agencé pour exercer un effort sans contact sur le mobile 7.According to the invention, this resonator is a substantially annular magnetic or electrostatic resonator 6, the mobile 7 of which is excited periodically under the action induced by the movement of the driver 8, which driver 8 is arranged to exert an effort without contact on the mobile 7.

Le mobile 7 est flexible et déformable au moins dans un plan perpendiculaire à l'axe A, et ce mobile 7 comporte une première zone magnétique ou électrisée selon un premier pas, et l'entraîneur 8 comporte une deuxième zone magnétisée ou électrisée selon un deuxième pas différent dudit premier pas, agencée pour coopérer en attraction ou en répulsion avec cette première zone, de façon à ce que le mobile 7 et l'entraîneur 8 constituent ensemble un mécanisme réducteur ou multiplicateur de vitesse.The mobile 7 is flexible and deformable at least in a plane perpendicular to the axis A, and mobile 7 comprises a first magnetic zone or electrified in a first step, and the driver 8 has a second magnetized zone or electrified according to a second no different from said first step, arranged to cooperate in attraction or repulsion with this first zone, so that the mobile 7 and the driver 8 together constitute a gear reduction mechanism or multiplier.

L'interaction peut se faire entre un élément magnétique, respectivement électrisé, et une piste conductrice, ou respectivement diélectrique.The interaction can be between a magnetic element, respectively electrified, and a conductive track, or dielectric respectively.

Plus particulièrement, dans un mode de réalisation non limitatif illustré par les figures, le mobile 7 comporte une première quantité de premières masses polaires 76 magnétiques ou électrisées selon un premier pas, et l'entraîneur 8 comporte une deuxième quantité de deuxièmes masses polaires 86 magnétisées ou électrisées selon un deuxième pas différent du premier pas. Ces deuxièmes masses polaires 86 sont agencées pour coopérer en attraction ou en répulsion avec les premières masses polaires 76, de façon à ce que le mobile 7 et l'entraîneur 8 constituent ensemble un mécanisme réducteur ou multiplicateur de vitesse.More particularly, in a non-limiting embodiment illustrated by the figures, the mobile 7 comprises a first quantity of first magnetic or electrically polar masses 76 in a first step, and the driver 8 comprises a second quantity of second magnetized polar masses 86 or electrified according to a second step different from the first step. These second polar masses 86 are arranged to cooperate in attraction or repulsion with the first polar masses 76, so that the mobile 7 and the driver 8 together constitute a gear reduction mechanism or multiplier.

Plus particulièrement, la première quantité diffère de la deuxième quantité.More particularly, the first amount differs from the second amount.

Plus particulièrement, la première quantité diffère de la deuxième quantité d'une unité.More particularly, the first quantity differs from the second quantity by one unit.

De façon particulière, la vitesse de l'entraîneur 8 définit une vitesse de propagation d'une onde de déformation dans le matériau du mobile 7 tout autour de celui-ci.In particular, the speed of the driver 8 defines a speed of propagation of a wave of deformation in the material of the mobile 7 all around thereof.

Plus particulièrement, la vitesse de l'entraîneur 8 définit une onde stationnaire d'oscillation du mobile 7 entre des formes répétitives correspondant à des modes stationnaires.More particularly, the speed of the driver 8 defines a stationary oscillation wave of the mobile 7 between repetitive forms corresponding to stationary modes.

De façon particulière, le mouvement de l'entraîneur 8 comporte au moins un mouvement de pivotement.In particular, the movement of the driver 8 comprises at least one pivoting movement.

Plus particulièrement, et tel qu'illustré de façon non limitative par les figures, le mouvement de l'entraîneur 8 est un mouvement de pivotement autour de l'axe A.More particularly, and as illustrated in a non-limiting manner by the figures, the movement of the driver 8 is a pivoting movement about the axis A.

Dans une exécution particulière, tel que visible sur les figures 15 et 17, le mobile 7 est fixé à une platine 5 que comporte le mouvement horloger 10 par une pluralité de lames flexibles 9.In a particular embodiment, as visible on the figures 15 and 17 , the mobile 7 is fixed to a plate 5 that includes the watch movement 10 by a plurality of flexible blades 9.

Dans une première variante ces lames flexibles 9 sont plus souples que le mobile 7, agencées pour maintenir le mobile 7 sensiblement centré sur l'axe A, et pour restreindre les mouvements d'oscillation du mobile 7 dans un même plan P perpendiculaire audit axe A avec des déplacements limités du centre d'inertie du mobile 7 inférieurs au dixième de la plus petite dimension extérieure du mobile 7 dans le plan P.In a first variant these flexible blades 9 are more flexible than the mobile 7, arranged to hold the mobile 7 substantially centered on the axis A, and to restrict the oscillatory movements of the mobile 7 in the same plane P perpendicular to said axis A with limited displacements of the center of inertia of the mobile 7 lower than one tenth of the smallest outer dimension of the mobile 7 in the plane P.

Dans une deuxième variante ces lames flexibles 9 sont plus rigides que le mobile 7, agencées pour maintenir le mobile 7 sensiblement centré sur l'axe A, et pour restreindre les mouvements du mobile 7 dans un même plan P perpendiculaire audit axe A avec des déplacements limités du centre d'inertie du mobile 7 inférieurs au dixième de la plus petite dimension extérieure du mobile 7 dans le plan P.In a second variant these flexible blades 9 are more rigid than the mobile 7, arranged to maintain the mobile 7 substantially centered on the axis A, and to restrict the movements of the mobile 7 in a plane P perpendicular to said axis A with displacements limited to the center of inertia of the mobile 7 less than one-tenth of the smallest outer dimension of the mobile 7 in the plane P.

De façon particulière, le mobile 7 est lesté sur sa périphérie, de façon continue ou périodique.In particular, the mobile 7 is weighted on its periphery, continuously or periodically.

De façon particulière, le mobile 7 est lesté par une pluralité de masselottes.In a particular way, the mobile 7 is ballasted by a plurality of weights.

De façon particulière, le mobile 7 présente des sections ou/et des épaisseurs variables le long de sa périphérie.In particular, the mobile 7 has sections and / or variable thickness along its periphery.

De façon avantageuse, le mobile 7 est en matériau micro-usinable ou en silicium et a une section rectangulaire dans tout plan passant par l'axe A.Advantageously, the mobile 7 is made of micro-machinable material or silicon and has a rectangular section in any plane passing through the axis A.

De façon avantageuse, le mobile 7 est monobloc avec une pluralité de lames flexibles 9 de liaison avec une platine 5 que comporte le mouvement horloger 10.Advantageously, the mobile 7 is monobloc with a plurality of flexible blades 9 connecting with a plate 5 that includes the watch movement 10.

De façon avantageuse, le mobile 7 est monobloc avec la pluralité de lames flexibles 9 et avec la platine 5.Advantageously, the mobile 7 is in one piece with the plurality of flexible blades 9 and with the plate 5.

Dans une exécution particulière, le mobile 7 a, dans un état libre non contraint, une forme polygonale ou polylobée dans un plan P orthogonal à l'axe A.In a particular embodiment, the mobile 7 has, in an unconstrained free state, a polygonal or multi-lobed shape in a plane P orthogonal to the axis A.

Dans une exécution particulière illustrée par les figures 1 à 19, le mobile 7 est un anneau coaxial à l'entraîneur 8.In a particular embodiment illustrated by the Figures 1 to 19 , the mobile 7 is a ring coaxial with the coach 8.

Dans une exécution particulière, tel que visible sur la figure 20, le mobile 7 est un solide au moins partiellement déformable selon la direction de l'axe AIn a particular embodiment, as visible on the figure 20 , the mobile 7 is a solid at least partially deformable in the direction of the axis A

L'invention concerne encore un mouvement d'horlogerie 10 comportant, fixés sur une platine 5, un moyen de stockage d'énergie 3, notamment un barillet, agencé pour délivrer du couple à un rouage 2 d'actionnement d'un mécanisme 1 comportant un tel résonateur annulaire 6 , avec un tel mobile 7 fixé par des lames flexibles 9 à la platine 5, et un tel entraîneur 8, notamment une roue d'échappement, entraîné par le rouage 2, l'entraîneur 8 commandant de préférence des moyens d'affichage 4 du mouvement 10.The invention also relates to a clockwork movement 10 comprising, fixed on a plate 5, energy storage means 3, in particular a cylinder, arranged to deliver torque to an actuating gear 2 of a mechanism 1 comprising such an annular resonator 6, with such a mobile 7 fixed by flexible blades 9 to the plate 5, and such a driver 8, including an escape wheel, driven by the gear 2, the driver 8 preferably controlling means display 4 of the movement 10.

L'invention concerne encore une pièce d'horlogerie 100 comportant un mouvement 10. De préférence cette pièce d'horlogerie 100 est une montre.The invention also relates to a timepiece 100 comprising a movement 10. Preferably, this timepiece 100 is a watch.

Plus particulièrement, les figures illustrent des variantes avantageuses de réalisation.More particularly, the figures illustrate advantageous embodiments.

Le mobile 7 comporte des premières masses polaires 76, et l'entraîneur 8 comporte des deuxièmes masses polaires 86. Le nombre de masses polaires sur chaque structure est choisi de manière à ce que, pour un angle donné de l'entraîneur 8, les masses polaires à 12h et 6h du mobile 7 et de l'entraîneur 8 sont en face l'une de l'autre et les masses polaires à 3h et 9h ne sont pas en face l'une de l'autre. Pour une faible rotation d'angle e de l'entraîneur 8, les alignements s'inversent.The mobile 7 comprises first polar masses 76, and the driver 8 comprises second polar masses 86. The number of polar masses on each structure is chosen so that, for a given angle of the driver 8, the masses polar at 12h and 6h of the mobile 7 and coach 8 are opposite each other and the polar masses at 3am and 9am are not opposite each other. For a low angular rotation e of the driver 8, the alignments are reversed.

Sur la figure 1, à 12h et 6h, les premières masses polaires 76 et les deuxièmes masses polaires 86 sont alignées. À 3h et 9h, les premières masses polaires 76 et les deuxièmes masses polaires 86 ne sont pas alignées. Sur la figure 2, avec une faible rotation d'angle θ de l'entraîneur 8, les alignements s'inversent.On the figure 1 at 12h and 6h, the first polar masses 76 and the second polar masses 86 are aligned. At 3 o'clock and 9 o'clock, the first polar masses 76 and the second polar masses 86 are not aligned. On the figure 2 with a slight angular rotation θ of the driver 8, the alignments are reversed.

Sur la figure 3, les masses polaires sont réalisées avec des aimants: L'entraîneur 8 est polarisé radialement vers l'extérieur et le mobile 7 est polarisé radialement vers l'axe A. Sur la figure 4, lorsque les masses polaires sont alignées, elles se repoussent. Sur la figure 5, lorsque les masses polaires sont désalignées, elles s'attirent.On the figure 3 , the polar masses are made with magnets: The driver 8 is polarized radially outwardly and the mobile 7 is polarized radially towards the axis A. On the figure 4 when the polar masses are aligned, they repel each other. On the figure 5 when the polar masses are misaligned, they attract each other.

On peut donc tracer le diagramme de la force d'interaction en fonction de l'angle de l'entraîneur 8, correspondant à la figure 6, entre le mobile 7 et l'entraîneur 8, à 12h en figure 7, et à 9h en figure 8.It is therefore possible to draw the diagram of the interaction force as a function of the angle of the driver 8, corresponding to the figure 6 , between the mobile 7 and the coach 8, at 12 o'clock in figure 7 , and at 9am in figure 8 .

Les figures 9 à 11, similaires aux figures 6 à 8, montrent que, en supprimant des masses polaires sur le mobile 7, on peut choisir où l'on veut localiser les forces d'interaction entre les deux éléments. Les figures 12 à 14 vont plus loin en en conservant que quatre paires de premières masses polaires 76 sur le mobile 7, à 90° les unes des autres.The Figures 9 to 11 , similar to Figures 6 to 8 , show that by removing polar masses on the mobile 7, we can choose where we want to locate the interaction forces between the two elements. The Figures 12 to 14 go further by keeping only four pairs of first polar masses 76 on the mobile 7, at 90 ° from each other.

Les figures 15 et 16 illustrent une première variante de l'invention, qui consiste à utiliser le principe décrit précédemment pour exciter un mobile 7 en forme d'anneau partiel pour qu'il résonne en mode dit wineglass: l'entraîneur 8 se synchronise avec les oscillations du mobile 7. Il n'y a aucune interaction mécanique entre l'entraîneur 8 et le mobile 7.The Figures 15 and 16 illustrate a first variant of the invention, which consists in using the principle described above to excite a mobile 7 in the form of a partial ring so that it resonates in so-called wineglass mode: the driver 8 synchronizes with the oscillations of the mobile 7 There is no mechanical interaction between the trainer 8 and the mobile 7.

La figure 15 est un schéma du mécanisme, où le mobile 7 en forme d'anneau est uniquement excité à 12h, 3h, 6h et 9h. La figure 16 illustre son mode de résonance en ellipses d'excentricité variable avec permutation des axes.The figure 15 is a diagram of the mechanism, where the ring-shaped mobile 7 is only excited at 12h, 3h, 6h and 9h. The figure 16 illustrates its resonance mode in ellipses of variable eccentricity with permutation of the axes.

La figure 15A est une variante de la réalisation de la figure 15, comportant des moyens de limitation anti-décrochage sous forme de butées mécaniques. Sur un deuxième niveau, parallèle à celui des masses polaires 86 de l'entraîneur 8, une roue dentée 40 est solidaire de l'entraîneur 8, et le mobile 7 comporte des butées sous forme de goupilles 41. En fonctionnement normal, ces goupilles 41 oscillent avec le mobile 7, sans toucher la roue dentée 40. En cas de décrochement, le disque entraîneur 8 a tendance à s'emballer et à tourner plus vite, mais alors les goupilles 41 entrent en collision avec la roue dentée 40, ce qui évite l'emballement.The figure 15A is a variant of the realization of the figure 15 , comprising anti-stall limiting means in the form of mechanical stops. On a second level, parallel to that of the pole masses 86 of the driver 8, a toothed wheel 40 is secured to the driver 8, and the mobile 7 comprises stops in the form of pins 41. In normal operation, these pins 41 oscillate with the mobile 7, without touching the toothed wheel 40. In case of recess, the drive disc 8 tends to race and turn faster, but then the pins 41 collide with the toothed wheel 40, which avoid runaway.

Les figures 17 et 18 illustrent une deuxième variante, qui consiste à utiliser le principe décrit précédemment avec un mobile 7 en forme d'anneau complet, pour une excitation en mode dit hula-hop. La figure 17 est un schéma du mécanisme, où le mobile 7 en forme d'anneau est excité sur toute sa circonférence, la figure 18 illustre son mode de résonance particulier.The Figures 17 and 18 illustrate a second variant, which consists in using the principle described above with a mobile 7 in the form of a complete ring, for an excitation mode said hula-hop. The figure 17 is a diagram of the mechanism, where the ring-shaped mobile 7 is excited over its entire circumference, the figure 18 illustrates its particular mode of resonance.

Une troisième variante illustrée en figure 19 consiste à empiler l'entraîneur 8 et le mobile 7, afin de faire osciller le mobile 7 en tridimensionnel, au moins partiellement selon la direction de l'axe A, en hauteur, selon le même principe que la première variante. Le disque prend donc une forme de chips, tel que visible en figure 20.A third variant illustrated in figure 19 consists in stacking the driver 8 and the mobile 7, in order to oscillate the mobile 7 in three-dimensional, at least partially in the direction of the axis A, in height, according to the same principle as the first variant. The disc thus takes a form of chips, as visible in figure 20 .

Une quatrième variante (non illustrée) est la version hors plan de la deuxième variante très proche de la troisième variante.A fourth variant (not shown) is the off-plan version of the second variant very close to the third variant.

Une autre variante, non illustrée, comporte un entraîneur 8 qui, au lieu d'aimants ponctuels, comporte une piste qui interagit avec des aimants sur le mobile 7 vibrant, de la même manière qu'avec une coopération aimants-aimants.Another variant, not illustrated, comprises a driver 8 which, instead of point magnets, has a track that interacts with magnets on the vibrating mobile 7, in the same way as with a magnet-magnets cooperation.

L'invention permet de supprimer les contacts dans l'organe réglant, permet l'obtention d'un meilleur facteur de qualité, et augmente le rendement. De plus, l'entraîneur 8, de préférence constitué par une roue d'échappement, tourne à basse fréquence et le mobile 7, de préférence un anneau, résonne à haute fréquence.The invention makes it possible to eliminate the contacts in the regulating organ, makes it possible to obtain a better quality factor, and increases the efficiency. In addition, the driver 8, preferably consisting of an escape wheel, rotates at low frequency and the mobile 7, preferably a ring, resonates at high frequency.

La réalisation selon la figure 15, avec un mobile 7 en anneau incomplet, réduit à certaines plages angulaires, permet de forcer une vibration en mode wineglass.The realization according to the figure 15 , with a mobile 7 ring incomplete, reduced to certain angular ranges, allows forcing a vibration in wineglass mode.

Claims (20)

  1. Timepiece resonator (6) including a mobile component (7) ring-shaped about an axis (A) and arranged to be capable of oscillation about said axis (A), and a drive member (8) subjected to a torque inside a timepiece movement (10), characterized in that said resonator is a substantially annular magnetic or electrostatic resonator (6) of which said mobile component (7) is periodically excited under the action induced by the motion of said drive member (8), said drive member (8) is arranged to exert a contactless force on said mobile component (7), said mobile component (7) being flexible and deformable at least in a plane (P) which is perpendicular to said axis (A) and in which said mobile component (7) oscillates, and said mobile component (7) including a first area magnetically or electrically charged at a first pitch angle, and said drive member (8) including a second area magnetically or electrically charged at a second pitch angle different from said first pitch angle, arranged to cooperate in attraction or in repulsion with said first area, such that said mobile component (7) and said drive member (8) together form a speed reducing or increasing mechanism, and characterized in that the speed of said drive member (8) defines a speed of propagation of a wave of deformation in the material of said mobile component (7) all round the latter, and defines a standing wave of oscillation of said mobile component (7) between repetitive shapes corresponding to standing modes.
  2. Timepiece resonator (6) according to claim 1, characterized in that said mobile component (7) includes a first quantity of first pole pieces (76) magnetically or electrically charged at a first pitch angle, and in that said drive member (8) includes a second quantity of second pole pieces (86) magnetically or electrically charged at a second pitch angle different from said first pitch angle, arranged to cooperate in attraction or in repulsion with said first pole pieces (76), such that said mobile component (7) and said drive member (8) together form a speed reducing or increasing mechanism.
  3. Timepiece resonator (6) according to claim 2, characterized in that said first quantity differs from said second quantity.
  4. Timepiece resonator (6) according to claim 3, characterized in that said first quantity differs from said second quantity by one unit.
  5. Timepiece resonator (6) according to one of the preceding claims, characterized in that the movement of said drive member (8) includes at least one pivoting motion.
  6. Timepiece resonator (6) according to the preceding claim, characterized in that said movement of said drive member (8) is a pivoting motion about said axis (A).
  7. Timepiece resonator (6) according to one of the preceding claims, characterized in that said mobile component (7) is secured to a plate (5) included in said timepiece movement (10) by a plurality of flexible strips (9), more flexible than said mobile component (7), arranged to maintain said mobile component (7) substantially centred on said axis (A), and to restrict the motions of said mobile component (7) in the same plan (P) perpendicular to said axis (A) with limited displacements of the centre of inertia of said mobile component (7) less than one tenth of the smallest external dimension of said mobile component (7) in said plane (P).
  8. Timepiece resonator (6) according to one of the preceding claims, characterized in that said mobile component (7) is secured to a plate (5) included in said timepiece movement (10) by a plurality of flexible strips (9), more rigid than said mobile component (7), arranged to maintain said mobile component (7) substantially centred on said axis (A), and to restrict the motions of said mobile component (7) in the same plan (P) perpendicular to said axis (A) with limited displacements of the centre of inertia of said mobile component (7) less than one tenth of the smallest external dimension of said mobile component (7) in said plane (P).
  9. Timepiece resonator (6) according to one of the preceding claims, characterized in that said mobile component (7) is weighted on the periphery thereof, in a continuous or periodic manner.
  10. Timepiece resonator (6) according to the preceding claim, characterized in that said mobile component (7) is weighted by a plurality of inertia-blocks.
  11. Timepiece resonator (6) according to one of the preceding claims, characterized in that said mobile component (7) has variable cross sections and/or thicknesses along the periphery thereof.
  12. Timepiece resonator (6) according to one of the preceding claims, characterized in that said mobile component (7) is made of micromachinable material or silicon and has a rectangular cross section in every plane passing through said axis (A).
  13. Timepiece resonator (6) according to the preceding claim, characterized in that said mobile component (7) is made integral with a plurality of flexible strips (9) for connection to a plate (5) included in said timepiece movement (10).
  14. Timepiece resonator (6) according to the preceding claim, characterized in that said mobile component (7) is integral with said plurality of flexible strips (9) and with said plate (5).
  15. Timepiece resonator (6) according to one of the preceding claims, characterized in that, in an unrestricted free state, said mobile component (7) has a polygonal or polylobate shape in a plane (P) orthogonal to said axis (A).
  16. Timepiece resonator (6) according to one of the preceding claims, characterized in that said drive member (8) includes, on a second level, parallel to that of said second pole pieces (86), a toothed wheel (40) integral with said drive member (8), and in that said mobile component (7) includes stops in the form of pins (41) which, in normal operation, oscillate with said mobile component (7) without touching said toothed wheel (40), and hook said toothed wheel (40) in the event of loss of synchronization, to prevent any racing.
  17. Timepiece resonator (6) according to one of claims 1 to 16, characterized in that said mobile component (7) is a ring coaxial to said drive member (8).
  18. Timepiece resonator (6) according to one of claims 1 to 17, characterized in that said mobile component (7) is a solid at least partially deformable in the direction of said axis (A).
  19. Timepiece movement (10) including, secured on a plate (5), an energy storage means (3) arranged to deliver said torque to a gear train (2) for actuating a timepiece resonator including an annular resonator (6) according to one of the preceding claims, with a said mobile component (7) secured by flexible strips (9) to said plate (5), and a said drive member (8) driven by said gear train (2), said drive member (8) controlling display means (4) of said movement (10).
  20. Timepiece (100) including a movement (10) according to the preceding claim, characterized in that the timepiece is a watch.
EP14186652.5A 2013-12-23 2014-09-26 Magnetic or electrostatic resonator Active EP2891929B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP14186652.5A EP2891929B1 (en) 2013-12-23 2014-09-26 Magnetic or electrostatic resonator
JP2016541686A JP6166847B2 (en) 2013-12-23 2014-12-09 Magnetic and / or electrostatic resonator
US15/102,389 US9651920B2 (en) 2013-12-23 2014-12-09 Magnetic and/or electrostatic resonator
RU2016130281A RU2624713C1 (en) 2013-12-23 2014-12-09 Magnetic or electrostatic resonator
PCT/EP2014/076991 WO2015096976A2 (en) 2013-12-23 2014-12-09 Magnetic or electrostatic resonator
CN201480070592.2A CN105849653B (en) 2013-12-23 2014-12-09 magnetic and/or electrostatic resonator

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP13199427.9A EP2887157B1 (en) 2013-12-23 2013-12-23 Optimised escapement
EP14184158.5A EP2889701B1 (en) 2013-12-23 2014-09-09 Clock synchronisation mechanism
EP14185638.5A EP2998801A1 (en) 2014-09-19 2014-09-19 Magnetic clock escapement and device for controlling the operation of a clock movement
EP14186652.5A EP2891929B1 (en) 2013-12-23 2014-09-26 Magnetic or electrostatic resonator

Publications (3)

Publication Number Publication Date
EP2891929A2 EP2891929A2 (en) 2015-07-08
EP2891929A3 EP2891929A3 (en) 2016-07-06
EP2891929B1 true EP2891929B1 (en) 2017-11-22

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EP14186652.5A Active EP2891929B1 (en) 2013-12-23 2014-09-26 Magnetic or electrostatic resonator

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3627242B1 (en) 2018-09-19 2021-07-21 The Swatch Group Research and Development Ltd Optimised magneto-mechanical timepiece escapement mechanism

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE530509A (en) *
GB1361672A (en) * 1971-03-30 1974-07-30 Horstmann Magnetics Ltd Magnetic rotor drives

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EP2891929A2 (en) 2015-07-08

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