EP2995999B1 - Synchronisation of clock resonators - Google Patents

Synchronisation of clock resonators Download PDF

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Publication number
EP2995999B1
EP2995999B1 EP14186911.5A EP14186911A EP2995999B1 EP 2995999 B1 EP2995999 B1 EP 2995999B1 EP 14186911 A EP14186911 A EP 14186911A EP 2995999 B1 EP2995999 B1 EP 2995999B1
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EP
European Patent Office
Prior art keywords
axis
resonator
coupling member
groove
mobile coupling
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
EP14186911.5A
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German (de)
French (fr)
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EP2995999A1 (en
Inventor
Jean-Jacques Born
Jean-Luc Helfer
Jérôme Favre
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.)
Swatch Group Research and Development SA
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Swatch Group Research and Development 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 EP14184155.1A external-priority patent/EP2908189A3/en
Priority claimed from CH01361/14A external-priority patent/CH709535B1/en
Application filed by Swatch Group Research and Development SA filed Critical Swatch Group Research and Development SA
Priority to EP14186911.5A priority Critical patent/EP2995999B1/en
Priority to JP2015150444A priority patent/JP5957129B2/en
Priority to CN201510548700.9A priority patent/CN105467812B/en
Priority to US14/847,090 priority patent/US9354609B2/en
Priority to RU2015138391A priority patent/RU2685745C2/en
Publication of EP2995999A1 publication Critical patent/EP2995999A1/en
Priority to HK16111305.9A priority patent/HK1223162A1/en
Publication of EP2995999B1 publication Critical patent/EP2995999B1/en
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Anticipated expiration legal-status Critical

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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
    • G04B18/04—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat
    • 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
    • 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
    • G04B17/045—Oscillators acting by spring tension with oscillating blade springs
    • 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
    • G04B15/00—Escapements
    • G04B15/02—Escapements permanently in contact with the regulating mechanism
    • 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
    • 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
    • G04B17/08—Oscillators with coil springs stretched and unstretched axially
    • 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
    • G04B17/10—Oscillators with torsion strips or springs acting in the same manner as torsion strips, e.g. weight oscillating in a horizontal 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
    • G04B17/20—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
    • 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 mobile coupler for the synchronization of a plurality of clock resonators of the same frequency and each having an interface pin arranged to transmit a torque to its respective resonator, and each said interface pin periodically traversing a planar closed trajectory, wherein said mobile coupler comprises, integral with a pivoting structure about a pivot axis and which comprises means for receiving a torque, means for holding said pins equidistant from said axis.
  • the invention also relates to a movement comprising, mounted on a plate by its fixed elements, at least one such balanced resonator.
  • the invention also relates to a watch comprising such a movement.
  • the invention relates to the field of clock resonators.
  • the invention proposes to minimize the forces at the fastenings of a resonator mechanism to the fixed elements of the movement, such as platinum, and therefore to guarantee the optimal operation of the system, insensitivity to external constraints, longevity and the reliability of such a mechanism.
  • the invention relates to a mobile coupler for the synchronization of a plurality of clock resonators of the same frequency and each having an interface pin arranged to transmit a torque to its respective resonator, and each said pin of interface periodically traversing a plane closed trajectory, where the mobile coupler comprises, integral with a pivoting structure about a pivot axis and which comprises means for receiving a torque, means for holding said pins equidistant from said axis .
  • said holding means comprise, integral with said structure, a plurality of grooves each substantially radial with respect to said axis, in a plane perpendicular to said axis, for receiving each said pin, said grooves being arranged symmetrically two-by-two with respect to a main groove, straight and passing through said axis, in a plane perpendicular to said axis, and in which main groove freely slides a main pad, which cooperates with a plurality of bars each arranged to be articulated by a side to one of said pins, and articulated on the other side to said main pad.
  • the invention also relates to a balanced resonator comprising a plurality of clock resonators of the same frequency, and each having an interface pin arranged to transmit a torque to its respective resonator and each said interface pin periodically traversing a closed flat trajectory , and comprising such a mobile coupler arranged to cooperate with said interface pins, characterized in that said mobile coupler is the only mechanical connection between the movable elements of said resonators.
  • the invention also relates to a movement comprising, mounted on a plate by its fixed elements, at least one such balanced resonator.
  • the invention also relates to a watch comprising such a movement.
  • the invention relates to a mobile coupler 8 for the synchronization of a plurality of clocking resonators of the same frequency 21, 22, and each comprising an interface pin 71, 72, arranged to transmit a torque to its respective resonator 21, 22, and each said interface pin 71, 72, periodically traversing a plane closed trajectory.
  • this mobile coupler 8 comprises a structure 85 pivotally mounted about a pivot axis D, and this structure 85 comprises means for receiving a torque provided by a watch movement 100, such as the torque of a winding barrel, or the like.
  • This mobile coupler 8 comprises, integral with this structure 85, means for holding these pins 71, 72, equidistant from the axis D)
  • these holding means comprise, integral with this structure 85, a plurality of grooves 81, 82, each substantially radial with respect to the axis D, in a plane perpendicular to the D axis, for receiving each such pin 71,72.
  • These grooves 81, 82 are arranged symmetrically in pairs relative to a main groove 94, straight and passing through the axis D, in a plane perpendicular to the axis D, and in which slides freely a main shoe 93
  • This main shoe 93 cooperates with a plurality of bars, 91, 92, each articulated on one side to one of the pins 71, 72, and on the other side to this main pad 93. More particularly, these bars 91, 92 , are of identical lengths to each other for each pair of grooves 81, 82, symmetrical with respect to the axis D, to constrain these pins 71, 72 to paths symmetrical with respect to the main groove 94.
  • the mobile coupling 8 is arranged for the synchronization of two such clock resonators 21, 22.
  • the two grooves 81 and 82 corresponding to the pins 71, 72, of these two resonators 21, 22 are straight and aligned with each other and with the axis D, to constrain these pins 71, 72, to symmetrical trajectories with respect to the axis D.
  • the mobile coupler 8 is arranged for the synchronization of two such clock resonators 21, 22, identical mounted symmetrically and in opposition.
  • the invention also relates to a balanced resonator 1 comprising a plurality of such clock resonators 21, 22, synchronized by such a mobile coupler 8.
  • this mobile coupler 8 is the only mechanical connection between the movable elements of these resonators 21, 22.
  • the balanced resonator 1 comprises two such clock resonators 21, 22.
  • the balanced resonator 1 comprises at least one clock resonator 21, 22, of rotary curvilinear translation type, resulting from the series setting of two oscillators with flexible guide each comprising a mass suspended relative to another by a plurality of flexible blades.
  • the balanced resonator 1 comprises two such clock resonators 21, 22, each of rotating rotary curvilinear type, resulting from the series setting of two oscillators with flexible guide each comprising a mass suspended relative to another by a plurality of flexible blades.
  • the mobile coupler 8 is arranged for the synchronization of two such clock resonators 21, 22, each of rotating rotary curvilinear type, resulting from the series connection of two oscillators with flexible guide each comprising a suspended mass. relative to another by a plurality of identical flexible blades mounted symmetrically and in opposition, as visible on the figure 1 , which illustrates a particular and preferred application of the invention, wherein the balanced resonator 1 comprises two such rotating curvilinear translation resonators, a first resonator 21, and a second opposite resonator 22.
  • first resonator 21 and the second opposite resonator 22 are assembled symmetrically, in opposition to one another.
  • the mobile coupling 8 of the balanced resonator 1 constitutes the only mechanical connection between the first resonator 21 and the second opposite resonator 22.
  • This mobile coupler 8 comprises or constitutes a mobile, such as an escape wheel or the like, subjected to a torque provided by a watch movement 100, such as a cylinder torque transmitted by a gear train, or the like.
  • the first resonator 21 comprises a first fixed mass 31, arranged to be fixed rigidly to a fixed structure, platinum or the like, or constituting such a plate.
  • the first resonator 21 further comprises a first mobile mass 41, which is suspended by first flexible blades 311, 312 (or rotatable bars, which can then be rigid and at least one spring-biased) to the first fixed mass 31.
  • this first mass mobile 41, or / and at least one of the first flexible blades 311, 322 (or rotatable bars of which at least one spring-biased) is connected by elastic return means 313, such as a spring or the like, to a fixed structure 310 .
  • This first oscillator oscillates essentially in a first linear direction Y.
  • the first mobile mass 41 of this first oscillator is integral with a return mass 51 which serves as anchoring to the second flexible blades 511, 512, or rotovated bars of which at least a spring-biased, second oscillator, which oscillates essentially in a second linear direction X, perpendicular to the first linear direction Y.
  • This second oscillator of the first resonator 21 further comprises a second mobile mass 61, which is suspended by these second flexible blades 511, 512, or bars rotated, to the return mass 51.
  • This second mobile mass 61 comprises a first pin 71, arranged to cooperate with the mobile coupler 8, which will be detailed below.
  • the second opposite resonator 22 comprises a first fixed opposite mass 32, arranged to be fixed rigidly to a fixed structure, platinum or the like, or constituting such a plate.
  • the second opposite resonator 22 further comprises a first opposite moving mass 42, which is suspended by first opposed flexible blades 321, 322, or rods, at the first opposite fixed mass 32.
  • this first opposite movable mass 42, and / or at least one of the first opposed flexible blades 321, 322, or rotatable bars is connected by opposed elastic return means 323, such as a spring or the like, to an opposite fixed structure 320, which may advantageously be the fixed structure 310, or the fixed or platinum structure to which is fixed the first fixed mass 31 and / or the first fixed fixed mass 32.
  • This first opposing oscillator oscillates essentially in the same first linear direction Y.
  • the first opposite moving mass 42 of this first opposing oscillator is integral with an opposite return mass 52 which serves to anchor the second opposed flexible blades 521, 522, or rotatable bars, of a second opposite oscillator, which oscillates substantially along the same second linear direction X, perpendicular to the first linear direction Y.
  • This second opposite oscillator of the second opposite resonator 22 further comprises a second opposite moving mass 62, which is suspended by these second opposed flexible blades 521, 522, or swivel bars, to the opposite facing mass 52.
  • This second opposite moving mass 62 comprises a second opposite pin 72, arranged to cooperate with the mobile coupler 8.
  • the oscillations of the components of the first and second oscillators of the first resonator 21 are coplanar in a first plane P1
  • the oscillations of the components of the first and second oscillators of the second opposite resonator 22 are coplanar in a second plane P2, which is parallel to the first plane P1.
  • the first plane P1 and the second plane P2 coincide.
  • the mobile coupler 8 is arranged to pivot about a pivot axis D. Particularly and preferably, this pivot axis D is perpendicular to both the first linear direction Y and the second linear direction X.
  • the mobile coupler 8 comprises, coaxial with the axis D, an outer race 87 of a bearing, whose inner cage 86 is integral with a shaft arranged to be mounted between bearings fixed to the plate, or the like.
  • the mobile coupling 8 comprises a first groove 81, substantially radial with respect to the axis D, in which the first pin 71 circulates with minimum clearance or with friction, between two end stops 810 inner and 811 external end, respectively close and remote from the axis D.
  • this first groove 81 is formed in a first arm 83 which extends in a plane parallel to a coupler plane P8 perpendicular to the axis D.
  • the first pin 71 circulates with minimum clearance in the first groove 81.
  • the first pin 71 flows frictionally in the first groove 81, with a substantially constant radial braking force.
  • the mobile coupling 8 comprises a second groove 82, substantially radial with respect to the axis D, in which the second opposite pin 72 circulates with minimum clearance or with friction, between two radial end stops 820 inner and 821 outer limit respectively near and far from the axis D.
  • this second groove 82 is formed in a second arm 84 which extends in a plane parallel to a coupler plane P8 perpendicular to the axis D.
  • the second opposite pin 72 circulates with minimum clearance in the second groove 82.
  • the second opposite pin 72 flows frictionally in the second groove 82, with a substantially constant radial braking force.
  • the first groove 81 is straight.
  • the second groove 82 is straight.
  • first groove 81 and second groove 82 are aligned with each other and with the axis D.
  • main groove 94 is orthogonal to the first groove 81 and the second groove 82.
  • the mobile coupler 8 comprises a third main groove 94.
  • This third main groove 94 is straight, passes through the axis D, with which it defines, in projection on the coupler plane P8, an axis of symmetry of the first groove 81 and second groove 82.
  • the third main groove 94 serves to guide a main shoe 93, between two radial end stops 940 and 941, respectively close to and away from the axis D.
  • this third main groove 94 is formed in a third arm 85 which extends in a plane parallel to a coupler plane P8 perpendicular to the axis D, and forms the structure mentioned above.
  • the third arm 85 carries, in its plane, a toothed wheel, in particular an escape wheel, not shown so as not to overload the figures.
  • This main shoe 93 carries, directly or indirectly, a first bar 91 connecting it to the first pin 71, and a second bar 92 connecting it to the second opposite pin 72.
  • the main shoe 93 carries one or two journals 95 receiving the end of the first bar 91, and the second bar 92, opposite the corresponding pin 71, 72. These pins 95 may be, depending on the arrangement of the set, aligned or shifted.
  • the first bar 91 and the second bar 92 are pivotally mounted at their ends on the first pin 71, the second opposite pin 72, and the respective pins 95.
  • the first bar 91 and the second bar 92 are of identical length.
  • the first bar 91 and the second bar 92 are always symmetrical about the axis of the third main groove 94.
  • the figure 2 illustrates a simplified embodiment in the form of tee; the figure 5 represents a variant of the figure 2 with a mobile cross coupler, balanced to avoid unbalance, and which comprises, symmetrical to the third arm 85 relative to the axis D, a fourth arm 85A, equipped in the same way, with a groove 94A, a skid 93A, and two arms 91A and 92A hinged to the pins 71 and 72.
  • the mobile 8 can take any other form, including circular.
  • the first pin 71 and the second pin opposite 72 each have a closed path, substantially elliptical, the better it is close to a circular path.
  • the inner radial end stops 810 and 820 are distant from the axis D on the same side thereof as the respective outer stops 811 and 821.
  • the first pin 71 is secured to the inner cage of a bearing whose outer cage is secured to a first sliding pad, without play or friction, in the first groove 81. In a particular embodiment, this first shoe slides with friction in the first groove 81.
  • the second opposite pin 72 is secured to the inner race of a bearing whose outer cage is secured to a second sliding pad, without play or friction, in the second groove 82.
  • this second shoe slides with friction in the second groove 82.
  • each pin 95 is integral with the inner race of a bearing whose outer cage is integral with the main shoe 93. a particular embodiment, this main shoe 93 slides with friction in the third main groove 94.
  • the invention makes it possible, thanks to its symmetrical arrangement, to be free from the drawback of a strong reaction at the level of the attachment to the plate, which is characteristic of a rotary curvilinear translation resonator, resulting from the implementation of series of two flexible guide oscillators each having a mass suspended relative to another by a plurality of flexible blades, and mounted alone.
  • the mobile coupler 8 has the advantage of perfectly synchronizing the first resonator 21 and the second opposite resonator 22, as well as to control the friction.
  • the use of bearings or the like at the pivoting level minimizes friction, the presence of friction on the pads makes it possible to control the shape of the elliptical trajectory of the first pin 71 and the second pin 72 opposite.
  • the restoring forces are not exactly proportional to the displacements, because the flexible guides used in such resonators are very short, resulting in a non-linearity of the spring force depending on the displacement, which introduces a defect of isochronism.
  • the respective groove 81, 82 which serves as a guide for the respective pin 71, 72, is arranged in a particular way.
  • each groove 71, 72 is given a shape creating a radial force, which corrects the variation of the spring constant of the blades of the flexible guide. This force can be directed towards the center or outward, depending on the shape of the groove.
  • a first run is a fully curved groove.
  • the concavity of this groove 71, 72 decreases progressively from the axis D.
  • the groove 71, 72 has a first radial inner portion with respect to the axis D, which is tangent to a second curve portion of constant or decreasing concavity away from the axis D so as to compensate for isochronism defects.
  • the groove 71, 72 is straight but not radial.
  • the invention also relates to such a resonator 1 equipped with such a mobile coupler 8, a movement 100 equipped with such a resonator and comprising a plate carrier of the fixed elements of this resonator 1, a watch 200 equipped with such a movement 100.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)

Description

Domaine de l'inventionField of the invention

L'invention concerne un mobile coupleur pour la synchronisation d'une pluralité de résonateurs d'horlogerie de même fréquence et comportant chacun une goupille d'interface agencée pour transmettre un couple à son résonateur respectif, et chaque dite goupille d'interface parcourant périodiquement une trajectoire fermée plane, où ledit mobile coupleur comporte, solidaires d'une structure pivotante autour d'un axe de pivotement et qui comporte des moyens de réception d'un couple, des moyens de maintien desdites goupilles à égale distance dudit axe.The invention relates to a mobile coupler for the synchronization of a plurality of clock resonators of the same frequency and each having an interface pin arranged to transmit a torque to its respective resonator, and each said interface pin periodically traversing a planar closed trajectory, wherein said mobile coupler comprises, integral with a pivoting structure about a pivot axis and which comprises means for receiving a torque, means for holding said pins equidistant from said axis.

L'invention concerne encore un mouvement comportant, monté sur une platine par ses éléments fixes, au moins un tel résonateur équilibré.The invention also relates to a movement comprising, mounted on a plate by its fixed elements, at least one such balanced resonator.

L'invention concerne encore une montre comportant un tel mouvement.The invention also relates to a watch comprising such a movement.

L'invention concerne le domaine des résonateurs d'horlogerie.The invention relates to the field of clock resonators.

Arrière-plan de l'inventionBackground of the invention

La recherche de mécanismes résonateurs à faible nombre de composants, à frottements réduits, et avec un isochronisme satisfaisant, est une préoccupation constant des constructeurs horlogers.The search for resonator mechanisms with low number of components, reduced friction, and with satisfactory isochronism, is a constant concern of watchmakers.

Les résonateurs de type à translation curviligne rotative, issus de la mise en série de deux oscillateurs à guidage flexible comportant chacun une masse suspendue par rapport à une autre par une pluralité de lames flexibles, semblent constituer un axe de développement prometteur. Leur principe comporte néanmoins des inconvénients, et notamment la forte réaction au niveau de l'attache à la platine du mouvement.The rotary curvilinear type of resonators, resulting from the series connection of two oscillators with flexible guide each comprising a mass suspended relative to another by a plurality of flexible blades, seem to constitute a promising axis of development. Their principle nevertheless has disadvantages, and in particular the strong reaction at the level of the attachment to the plate of the movement.

Le document WO2006/067597 A2 au nom de ALLAMAN décrit une ancre agencée avec plusieurs bras, pour la synchronisation d'autant de balanciers de même fréquence lesquels comportent chacun une goupille coopérant avec une fourchette de chacun des bras de l'ancre, sur un même rayon par rapport à l'axe de pivotement de l'ancre.The document WO2006 / 067597 A2 in the name of ALLAMAN describes an anchor arranged with several arms, for the synchronization of as many rockers of the same frequency which each comprise a pin cooperating with a fork of each arm of the anchor, on the same radius relative to the pivot axis of the anchor.

Le document US 22791 A au nom de FASOLDT décrit un mécanisme avec une roue d'échappement à deux niveaux, qui coopèrent chacun avec des palettes que comportent autant d'ancres que de balanciers périphériques.The document US 22791 A in the name of FASOLDT describes a mechanism with a two-level escapement wheel, which each cooperate with pallets that have as many anchors as peripheral balances.

Résumé de l'inventionSummary of the invention

L'invention se propose de minimiser les efforts au niveau des fixations d'un mécanisme résonateur aux éléments fixes du mouvement, telle la platine, et, par conséquent de garantir la marche optimale du système, l'insensibilité aux contraintes extérieures, la longévité et la fiabilité d'un tel mécanisme.The invention proposes to minimize the forces at the fastenings of a resonator mechanism to the fixed elements of the movement, such as platinum, and therefore to guarantee the optimal operation of the system, insensitivity to external constraints, longevity and the reliability of such a mechanism.

A cet effet, l'invention concerne un mobile coupleur pour la synchronisation d'une pluralité de résonateurs d'horlogerie de même fréquence et comportant chacun une goupille d'interface agencée pour transmettre un couple à son résonateur respectif, et chaque dite goupille d'interface parcourant périodiquement une trajectoire fermée plane, où le mobile coupleur comporte, solidaires d'une structure pivotante autour d'un axe de pivotement et qui comporte des moyens de réception d'un couple, des moyens de maintien desdites goupilles à égale distance dudit axe.To this end, the invention relates to a mobile coupler for the synchronization of a plurality of clock resonators of the same frequency and each having an interface pin arranged to transmit a torque to its respective resonator, and each said pin of interface periodically traversing a plane closed trajectory, where the mobile coupler comprises, integral with a pivoting structure about a pivot axis and which comprises means for receiving a torque, means for holding said pins equidistant from said axis .

Selon l'invention, lesdits moyens de maintien comportent, solidaires de ladite structure, une pluralité de rainures chacune sensiblement radiale par rapport audit axe, dans un plan perpendiculaire audit axe, pour la réception de chaque dite goupille, lesdites rainures étant disposées de façon symétrique deux à deux par rapport à une rainure principale, droite et passant par ledit axe, dans un plan perpendiculaire audit axe, et dans laquelle rainure principale coulisse librement un patin principal, lequel coopère avec une pluralité de barres chacune agencée pour être articulée d'un côté à une desdites goupilles, et articulée de l'autre côté audit patin principal.According to the invention, said holding means comprise, integral with said structure, a plurality of grooves each substantially radial with respect to said axis, in a plane perpendicular to said axis, for receiving each said pin, said grooves being arranged symmetrically two-by-two with respect to a main groove, straight and passing through said axis, in a plane perpendicular to said axis, and in which main groove freely slides a main pad, which cooperates with a plurality of bars each arranged to be articulated by a side to one of said pins, and articulated on the other side to said main pad.

L'invention concerne encore un résonateur équilibré comportant une pluralité de résonateurs d'horlogerie de même fréquence, et comportant chacun une goupille d'interface agencée pour transmettre un couple à son résonateur respectif et chaque dite goupille d'interface parcourant périodiquement une trajectoire fermée plane, et comportant un tel mobile coupleur agencé pour coopérer avec lesdites goupilles d'interface, caractérisé en ce que ledit mobile coupleur constitue la seule liaison mécanique entre les éléments mobiles desdits résonateurs.The invention also relates to a balanced resonator comprising a plurality of clock resonators of the same frequency, and each having an interface pin arranged to transmit a torque to its respective resonator and each said interface pin periodically traversing a closed flat trajectory , and comprising such a mobile coupler arranged to cooperate with said interface pins, characterized in that said mobile coupler is the only mechanical connection between the movable elements of said resonators.

L'invention concerne encore un mouvement comportant, monté sur une platine par ses éléments fixes, au moins un tel résonateur équilibré.The invention also relates to a movement comprising, mounted on a plate by its fixed elements, at least one such balanced resonator.

L'invention concerne encore une montre comportant un tel mouvement.The invention also relates to a watch comprising such a movement.

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 :

  • la figure 1 représente, de façon schématisée et en vue de face, un résonateur équilibré selon l'invention, qui comporte deux résonateurs d'horlogerie qui sont un premier résonateur et un deuxième résonateur opposé, chacun de type à translation curviligne rotative, issu de la mise en série de deux oscillateurs à guidage flexible comportant chacun une masse suspendue par rapport à une autre par une pluralité de lames flexibles, et où ces deux résonateurs sont synchronisés par un mobile coupleur selon l'invention ;
  • la figure 2 représente un détail de la figure 1 détaillant le mobile coupleur et son interface avec des goupilles que comportent ces deux résonateurs ;
  • la figure 3 représente, de façon schématisée et en vue de dessus, le résonateur équilibré de la figure 1 ;
  • la figure 4 représente le résonateur équilibré de la figure 1, où les oscillateurs composant chacun des deux résonateurs occupent des positions différentes, et où le mobile coupleur occupe une autre position angulaire ;
  • la figure 5 représente une variante de la figure 2 avec un mobile coupleur équilibré pour éviter tout balourd ;
  • la figure 6 est un schéma-blocs représentant une montre comportant un mouvement qui intègre un tel résonateur équilibré. ;
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 figure 1 represents, schematically and in front view, a balanced resonator according to the invention, which comprises two clock resonators which are a first resonator and a second opposite resonator, each of rotating rotary curvilinear type, resulting from the implementation series of two oscillators with flexible guide each comprising a mass suspended relative to another by a plurality of flexible blades, and wherein these two resonators are synchronized by a mobile coupler according to the invention;
  • the figure 2 represents a detail of the figure 1 detailing the mobile coupler and its interface with pins that include these two resonators;
  • the figure 3 represents, schematically and in a view from above, the balanced resonator of the figure 1 ;
  • the figure 4 represents the balanced resonator of the figure 1 , where the oscillators composing each of the two resonators occupy different positions, and wherein the mobile coupler occupies another angular position;
  • the figure 5 represents a variant of the figure 2 with a balanced coupler mobile to avoid unbalance;
  • the figure 6 is a block diagram showing a watch having a movement that integrates such a balanced resonator. ;

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

L'invention concerne un mobile coupleur 8 pour la synchronisation d'une pluralité de résonateurs d'horlogerie de même fréquence 21, 22, et comportant chacun une goupille d'interface 71, 72, agencée pour transmettre un couple à son résonateur respectif 21, 22, et chaque dite goupille d'interface 71, 72, parcourant périodiquement une trajectoire fermée plane.The invention relates to a mobile coupler 8 for the synchronization of a plurality of clocking resonators of the same frequency 21, 22, and each comprising an interface pin 71, 72, arranged to transmit a torque to its respective resonator 21, 22, and each said interface pin 71, 72, periodically traversing a plane closed trajectory.

Selon l'invention, ce mobile coupleur 8 comporte une structure 85 montée pivotante autour d'un axe de pivotement D, et cette structure 85 comporte des moyens de réception d'un couple fourni par un mouvement d'horlogerie 100, tel le couple d'un barillet de remontage, ou similaire.According to the invention, this mobile coupler 8 comprises a structure 85 pivotally mounted about a pivot axis D, and this structure 85 comprises means for receiving a torque provided by a watch movement 100, such as the torque of a winding barrel, or the like.

Ce mobile coupleur 8 comporte, solidaires de cette structure 85, des moyens de maintien de ces goupilles 71, 72, à égale distance de l'axe D)This mobile coupler 8 comprises, integral with this structure 85, means for holding these pins 71, 72, equidistant from the axis D)

Plus particulièrement, dans une variante de réalisation simple et nullement limitative, ces moyens de maintien comportent, solidaires de cette structure 85, une pluralité de rainures 81, 82, chacune sensiblement radiale par rapport à l'axe D, dans un plan perpendiculaire à l'axe D, pour la réception de chaque telle goupille 71,72.More particularly, in a simple and in no way limiting embodiment variant, these holding means comprise, integral with this structure 85, a plurality of grooves 81, 82, each substantially radial with respect to the axis D, in a plane perpendicular to the D axis, for receiving each such pin 71,72.

Ces rainures 81, 82, sont disposées de façon symétrique deux à deux par rapport à une rainure principale 94, droite et passant par l'axe D, dans un plan perpendiculaire à l'axe D, et dans laquelle coulisse librement un patin principal 93. Ce patin principal 93 coopère avec une pluralité de barres, 91, 92, chacune articulée d'un côté à une des goupilles 71, 72, et de l'autre côté à ce patin principal 93. Plus particulièrement, ces barres 91, 92, sont de longueurs identiques entre elles pour chaque paire de rainures 81, 82, symétrique par rapport à l'axe D, pour astreindre ces goupilles 71, 72, à des trajectoires symétriques par rapport à la rainure principale 94.These grooves 81, 82, are arranged symmetrically in pairs relative to a main groove 94, straight and passing through the axis D, in a plane perpendicular to the axis D, and in which slides freely a main shoe 93 This main shoe 93 cooperates with a plurality of bars, 91, 92, each articulated on one side to one of the pins 71, 72, and on the other side to this main pad 93. More particularly, these bars 91, 92 , are of identical lengths to each other for each pair of grooves 81, 82, symmetrical with respect to the axis D, to constrain these pins 71, 72 to paths symmetrical with respect to the main groove 94.

Dans une réalisation particulière, le mobile coupleur 8 est agencé pour la synchronisation de deux tels résonateurs d'horlogerie 21, 22. Dans une réalisation particulière, les deux rainures 81 et 82 correspondant aux goupilles 71, 72, de ces deux résonateurs 21, 22, sont droites et alignées l'une avec l'autre et avec l'axe D, pour astreindre ces goupilles 71, 72, à des trajectoires symétriques par rapport à l'axe D.In a particular embodiment, the mobile coupling 8 is arranged for the synchronization of two such clock resonators 21, 22. In a particular embodiment, the two grooves 81 and 82 corresponding to the pins 71, 72, of these two resonators 21, 22 , are straight and aligned with each other and with the axis D, to constrain these pins 71, 72, to symmetrical trajectories with respect to the axis D.

Dans une réalisation particulière, le mobile coupleur 8 est agencé pour la synchronisation de deux tels résonateurs d'horlogerie 21, 22, identiques montés symétriques et en opposition.In a particular embodiment, the mobile coupler 8 is arranged for the synchronization of two such clock resonators 21, 22, identical mounted symmetrically and in opposition.

L'invention concerne encore un résonateur équilibré 1 comportant une pluralité de tels résonateurs d'horlogerie 21, 22, synchronisés par un tel mobile coupleur 8.The invention also relates to a balanced resonator 1 comprising a plurality of such clock resonators 21, 22, synchronized by such a mobile coupler 8.

Abstraction faite de la fixation des éléments fixes que comportent ces résonateurs 21, 22, et qui sont liés par la platine, des ponts ou similaire, ce mobile coupleur 8 constitue la seule liaison mécanique entre les éléments mobiles de ces résonateurs 21, 22.Apart from fixing the fixed elements that these resonators 21, 22, and which are connected by the plate, bridges or the like, this mobile coupler 8 is the only mechanical connection between the movable elements of these resonators 21, 22.

Dans une réalisation particulière, le résonateur équilibré 1 comporte deux tels résonateurs d'horlogerie 21, 22.In a particular embodiment, the balanced resonator 1 comprises two such clock resonators 21, 22.

Dans une réalisation particulière, le résonateur équilibré 1 comporte au moins un résonateur d'horlogerie 21, 22, de type à translation curviligne rotative, issu de la mise en série de deux oscillateurs à guidage flexible comportant chacun une masse suspendue par rapport à une autre par une pluralité de lames flexibles.In a particular embodiment, the balanced resonator 1 comprises at least one clock resonator 21, 22, of rotary curvilinear translation type, resulting from the series setting of two oscillators with flexible guide each comprising a mass suspended relative to another by a plurality of flexible blades.

Dans une réalisation particulière, le résonateur équilibré 1 comporte deux tels résonateurs d'horlogerie 21, 22, chacun de type à translation curviligne rotative, issu de la mise en série de deux oscillateurs à guidage flexible comportant chacun une masse suspendue par rapport à une autre par une pluralité de lames flexibles.In a particular embodiment, the balanced resonator 1 comprises two such clock resonators 21, 22, each of rotating rotary curvilinear type, resulting from the series setting of two oscillators with flexible guide each comprising a mass suspended relative to another by a plurality of flexible blades.

Dans une réalisation particulière, le mobile coupleur 8 est agencé pour la synchronisation de deux tels résonateurs d'horlogerie 21, 22, chacun de type à translation curviligne rotative, issu de la mise en série de deux oscillateurs à guidage flexible comportant chacun une masse suspendue par rapport à une autre par une pluralité de lames flexibles, identiques, montés symétriques et en opposition, tels que visibles sur la figure 1, qui illustre une application particulière et préférée de l'invention, où le résonateur équilibré 1 comporte deux tels résonateurs à translation curviligne rotative, un premier résonateur 21, et un deuxième résonateur opposé 22.In a particular embodiment, the mobile coupler 8 is arranged for the synchronization of two such clock resonators 21, 22, each of rotating rotary curvilinear type, resulting from the series connection of two oscillators with flexible guide each comprising a suspended mass. relative to another by a plurality of identical flexible blades mounted symmetrically and in opposition, as visible on the figure 1 , which illustrates a particular and preferred application of the invention, wherein the balanced resonator 1 comprises two such rotating curvilinear translation resonators, a first resonator 21, and a second opposite resonator 22.

Dans cette mise en oeuvre particulière et avantageuse, le premier résonateur 21 et le deuxième résonateur opposé 22 sont assemblés de façon symétrique, en opposition l'un à l'autre.In this particular and advantageous embodiment, the first resonator 21 and the second opposite resonator 22 are assembled symmetrically, in opposition to one another.

Abstraction faite de la platine du mouvement, ou similaire, qui en supporte les éléments fixes, le mobile coupleur 8 du résonateur équilibré 1 constitue la seule liaison mécanique entre le premier résonateur 21, et le deuxième résonateur opposé 22. Ce mobile coupleur 8 comporte ou constitue un mobile, tel qu'une roue d'échappement ou similaire, soumis à un couple fourni par un mouvement d'horlogerie 100, tel un couple de barillet transmis par un rouage, ou similaire.Apart from the platinum of the movement, or the like, which supports the fixed elements, the mobile coupling 8 of the balanced resonator 1 constitutes the only mechanical connection between the first resonator 21 and the second opposite resonator 22. This mobile coupler 8 comprises or constitutes a mobile, such as an escape wheel or the like, subjected to a torque provided by a watch movement 100, such as a cylinder torque transmitted by a gear train, or the like.

Le premier résonateur 21 comporte une première masse fixe 31, agencée pour être fixée rigidement à une structure fixe, platine ou similaire, ou constituant une telle platine.The first resonator 21 comprises a first fixed mass 31, arranged to be fixed rigidly to a fixed structure, platinum or the like, or constituting such a plate.

Le premier résonateur 21 comporte encore une première masse mobile 41, qui est suspendue par des premières lames flexibles 311, 312 (ou des barres rotulées, qui peuvent alors être rigides et dont au moins une rappelée par ressort) à la première masse fixe 31. Dans une variante particulière, cette première masse mobile 41, ou/et au moins une des premières lames flexibles 311,312 (ou des barres rotulées dont au moins une rappelée par ressort) est reliée par des moyens de rappel élastique 313, tels qu'un ressort ou similaire, à une structure fixe 310.The first resonator 21 further comprises a first mobile mass 41, which is suspended by first flexible blades 311, 312 (or rotatable bars, which can then be rigid and at least one spring-biased) to the first fixed mass 31. In a particular variant, this first mass mobile 41, or / and at least one of the first flexible blades 311, 322 (or rotatable bars of which at least one spring-biased) is connected by elastic return means 313, such as a spring or the like, to a fixed structure 310 .

Ce premier oscillateur oscille essentiellement selon une première direction linéaire Y. La première masse mobile 41 de ce premier oscillateur est solidaire d'une masse de renvoi 51 qui sert d'ancrage aux deuxièmes lames flexibles 511, 512, ou de barres rotulées dont au moins une rappelée par ressort, d'un deuxième oscillateur, qui oscille essentiellement selon une deuxième direction linéaire X, perpendiculaire à la première direction linéaire Y.This first oscillator oscillates essentially in a first linear direction Y. The first mobile mass 41 of this first oscillator is integral with a return mass 51 which serves as anchoring to the second flexible blades 511, 512, or rotovated bars of which at least a spring-biased, second oscillator, which oscillates essentially in a second linear direction X, perpendicular to the first linear direction Y.

Ce deuxième oscillateur du premier résonateur 21 comporte encore une deuxième masse mobile 61, qui est suspendue par ces deuxièmes lames flexibles 511, 512, ou barres rotulées, à la masse de renvoi 51.This second oscillator of the first resonator 21 further comprises a second mobile mass 61, which is suspended by these second flexible blades 511, 512, or bars rotated, to the return mass 51.

Cette deuxième masse mobile 61 comporte une première goupille 71, agencée pour coopérer avec le mobile coupleur 8, qui sera détaillé ci-dessous.This second mobile mass 61 comprises a first pin 71, arranged to cooperate with the mobile coupler 8, which will be detailed below.

De façon similaire et en symétrie, le deuxième résonateur opposé 22 comporte une première masse fixe opposée 32, agencée pour être fixée rigidement à une structure fixe, platine ou similaire, ou constituant une telle platine.Similarly and in symmetry, the second opposite resonator 22 comprises a first fixed opposite mass 32, arranged to be fixed rigidly to a fixed structure, platinum or the like, or constituting such a plate.

Le deuxième résonateur opposé 22 comporte encore une première masse mobile opposée 42, qui est suspendue par des premières lames flexibles opposées 321, 322, ou barres rotulées, à la première masse fixe opposée 32.The second opposite resonator 22 further comprises a first opposite moving mass 42, which is suspended by first opposed flexible blades 321, 322, or rods, at the first opposite fixed mass 32.

Dans une variante particulière, cette première masse mobile opposée 42, ou/et au moins une des premières lames flexibles opposées 321, 322, ou barres rotulées, est reliée par des moyens de rappel élastique opposés 323, tels qu'un ressort ou similaire, à une structure fixe opposée 320, qui peut avantageusement être la structure fixe 310, ou la structure fixe ou platine à laquelle est fixée la première masse fixe 31 ou/et la première masse fixe opposée 32.In a particular variant, this first opposite movable mass 42, and / or at least one of the first opposed flexible blades 321, 322, or rotatable bars, is connected by opposed elastic return means 323, such as a spring or the like, to an opposite fixed structure 320, which may advantageously be the fixed structure 310, or the fixed or platinum structure to which is fixed the first fixed mass 31 and / or the first fixed fixed mass 32.

Ce premier oscillateur opposé oscille essentiellement selon la même première direction linéaire Y. La première masse mobile opposée 42 de ce premier oscillateur opposée est solidaire d'une masse de renvoi opposée 52 qui sert d'ancrage aux deuxièmes lames flexibles opposées 521, 522, ou barres rotulées, d'un deuxième oscillateur opposé, qui oscille essentiellement selon la même deuxième direction linéaire X, perpendiculaire à la première direction linéaire Y.This first opposing oscillator oscillates essentially in the same first linear direction Y. The first opposite moving mass 42 of this first opposing oscillator is integral with an opposite return mass 52 which serves to anchor the second opposed flexible blades 521, 522, or rotatable bars, of a second opposite oscillator, which oscillates substantially along the same second linear direction X, perpendicular to the first linear direction Y.

Ce deuxième oscillateur opposé du deuxième résonateur opposé 22 comporte encore une deuxième masse mobile opposée 62, qui est suspendue par ces deuxièmes lames flexibles opposée 521, 522, ou barres rotulées, à la masse de renvoi opposée 52.This second opposite oscillator of the second opposite resonator 22 further comprises a second opposite moving mass 62, which is suspended by these second opposed flexible blades 521, 522, or swivel bars, to the opposite facing mass 52.

Cette deuxième masse mobile opposée 62 comporte une deuxième goupille opposée 72, agencée pour coopérer avec le mobile coupleur 8.This second opposite moving mass 62 comprises a second opposite pin 72, arranged to cooperate with the mobile coupler 8.

Dans une réalisation particulière, illustrée par les figures, les oscillations des composants des premier et deuxième oscillateurs du premier résonateur 21 sont coplanaires dans un premier plan P1, les oscillations des composants des premier et deuxième oscillateurs du deuxième résonateur opposé 22 sont coplanaires dans un deuxième plan P2, lequel est parallèle au premier plan P1.In a particular embodiment, illustrated by the figures, the oscillations of the components of the first and second oscillators of the first resonator 21 are coplanar in a first plane P1, the oscillations of the components of the first and second oscillators of the second opposite resonator 22 are coplanar in a second plane P2, which is parallel to the first plane P1.

Dans une réalisation particulière, le premier plan P1 et le deuxième plan P2 sont confondus.In a particular embodiment, the first plane P1 and the second plane P2 coincide.

Le mobile coupleur 8 est agencé pour pivoter autour d'un axe de pivotement D. De façon particulière et préférée, cet axe de pivotement D est perpendiculaire à la fois à la première direction linéaire Y et à la deuxième direction linéaire X. Dans une réalisation particulière, le mobile coupleur 8 comporte, coaxiale à l'axe D, une cage externe 87 d'un roulement, dont la cage interne 86 est solidaire d'un arbre agencé pour être monté entre des paliers fixés à la platine, ou similaire.The mobile coupler 8 is arranged to pivot about a pivot axis D. Particularly and preferably, this pivot axis D is perpendicular to both the first linear direction Y and the second linear direction X. In one embodiment In particular, the mobile coupler 8 comprises, coaxial with the axis D, an outer race 87 of a bearing, whose inner cage 86 is integral with a shaft arranged to be mounted between bearings fixed to the plate, or the like.

Le mobile coupleur 8 comporte une première rainure 81, sensiblement radiale par rapport à l'axe D, dans laquelle la première goupille 71 circule à jeu minimal ou avec friction, entre deux butées radiales de fin de course intérieure 810 et extérieure 811, respectivement proche et éloignée de l'axe D. Dans une réalisation particulière, cette première rainure 81 est ménagée dans un premier bras 83 qui s'étend selon un plan parallèle à un plan de coupleur P8 perpendiculaire à l'axe D.The mobile coupling 8 comprises a first groove 81, substantially radial with respect to the axis D, in which the first pin 71 circulates with minimum clearance or with friction, between two end stops 810 inner and 811 external end, respectively close and remote from the axis D. In a particular embodiment, this first groove 81 is formed in a first arm 83 which extends in a plane parallel to a coupler plane P8 perpendicular to the axis D.

Dans un mode particulier de réalisation, la première goupille 71 circule à jeu minimal dans la première rainure 81.In a particular embodiment, the first pin 71 circulates with minimum clearance in the first groove 81.

Dans un autre mode particulier de réalisation, la première goupille 71 circule à friction dans la première rainure 81, avec un effort de freinage radial sensiblement constant.In another particular embodiment, the first pin 71 flows frictionally in the first groove 81, with a substantially constant radial braking force.

Le mobile coupleur 8 comporte une deuxième rainure 82, sensiblement radiale par rapport à l'axe D, dans laquelle la deuxième goupille opposée 72 circule à jeu minimal ou avec friction, entre deux butées radiales de fin de course intérieure 820 et extérieure 821, respectivement proche et éloignée de l'axe D. Dans une réalisation particulière, cette deuxième rainure 82 est ménagée dans un deuxième bras 84 qui s'étend selon un plan parallèle à un plan de coupleur P8 perpendiculaire à l'axe D.The mobile coupling 8 comprises a second groove 82, substantially radial with respect to the axis D, in which the second opposite pin 72 circulates with minimum clearance or with friction, between two radial end stops 820 inner and 821 outer limit respectively near and far from the axis D. In a particular embodiment, this second groove 82 is formed in a second arm 84 which extends in a plane parallel to a coupler plane P8 perpendicular to the axis D.

Dans un mode particulier de réalisation, la deuxième goupille opposée 72 circule à jeu minimal dans la deuxième rainure 82.In a particular embodiment, the second opposite pin 72 circulates with minimum clearance in the second groove 82.

Dans un autre mode particulier de réalisation, la deuxième goupille opposée 72 circule à friction dans la deuxième rainure 82, avec un effort de freinage radial sensiblement constant.In another particular embodiment, the second opposite pin 72 flows frictionally in the second groove 82, with a substantially constant radial braking force.

Dans une réalisation particulière, la première rainure 81 est droite.In a particular embodiment, the first groove 81 is straight.

Dans une réalisation particulière, la deuxième rainure 82 est droite.In a particular embodiment, the second groove 82 is straight.

Dans un mode particulier et préféré de réalisation, la première rainure 81 et deuxième rainure 82 sont alignées l'une avec l'autre et avec l'axe D. Et la rainure principale 94 est orthogonale à la première rainure 81 et à la deuxième rainure 82.In a particular and preferred embodiment, the first groove 81 and second groove 82 are aligned with each other and with the axis D. And the main groove 94 is orthogonal to the first groove 81 and the second groove 82.

Le mouvement de la première goupille 71 dans la première rainure 81 et celui de la deuxième goupille opposée 72 dans la deuxième rainure 82 ne sont pas libres, mais sont liés par un moyen de couplage qui garantit la symétrie de leurs positions par rapport à l'axe D.The movement of the first pin 71 in the first groove 81 and that of the second pin 72 opposite in the second groove 82 are not free, but are connected by a coupling means which ensures the symmetry of their positions relative to the D. axis

Dans une réalisation particulière et préférée, le mobile coupleur 8 comporte une troisième rainure principale 94. Cette troisième rainure principale 94 est droite, passe par l'axe D, avec lequel elle définit, en projection sur le plan de coupleur P8, un axe de symétrie des première rainure 81 et deuxième rainure 82.In a particular and preferred embodiment, the mobile coupler 8 comprises a third main groove 94. This third main groove 94 is straight, passes through the axis D, with which it defines, in projection on the coupler plane P8, an axis of symmetry of the first groove 81 and second groove 82.

La troisième rainure principale 94 sert de guidage à un patin principal 93, entre deux butées radiales de fin de course 940 et 941, respectivement proche et éloignée de l'axe D.The third main groove 94 serves to guide a main shoe 93, between two radial end stops 940 and 941, respectively close to and away from the axis D.

Dans une réalisation particulière, cette troisième rainure principale 94 est ménagée dans un troisième bras 85 qui s'étend selon un plan parallèle à un plan de coupleur P8 perpendiculaire à l'axe D, et forme la structure citée plus haut. Dans une réalisation particulière, le troisième bras 85 porte, dans son plan, une roue dentée, notamment une roue d'échappement, non représentée pour ne pas surcharger les figures.In a particular embodiment, this third main groove 94 is formed in a third arm 85 which extends in a plane parallel to a coupler plane P8 perpendicular to the axis D, and forms the structure mentioned above. In a particular embodiment, the third arm 85 carries, in its plane, a toothed wheel, in particular an escape wheel, not shown so as not to overload the figures.

Ce patin principal 93 porte, directement ou indirectement, une première barre 91 le reliant à la première goupille 71, et une deuxième barre 92 le reliant à la deuxième goupille opposée 72. Dans une réalisation particulière, le patin principal 93 porte un ou deux tourillons 95 recevant l'extrémité de la première barre 91, et de la deuxième barre 92, opposée à la goupille correspondante 71, 72. Ces tourillons 95 peuvent être, selon l'agencement de l'ensemble, alignés ou encore décalés. Dans une réalisation particulière non limitative, la première barre 91 et la deuxième barre 92 sont montés pivotantes, à leurs extrémités, sur la première goupille 71, la deuxième goupille opposée 72, et les tourillons 95 respectifs. La première barre 91 et la deuxième barre 92 sont de longueur identique.This main shoe 93 carries, directly or indirectly, a first bar 91 connecting it to the first pin 71, and a second bar 92 connecting it to the second opposite pin 72. In a particular embodiment, the main shoe 93 carries one or two journals 95 receiving the end of the first bar 91, and the second bar 92, opposite the corresponding pin 71, 72. These pins 95 may be, depending on the arrangement of the set, aligned or shifted. In a particular non-limiting embodiment, the first bar 91 and the second bar 92 are pivotally mounted at their ends on the first pin 71, the second opposite pin 72, and the respective pins 95. The first bar 91 and the second bar 92 are of identical length.

Du fait de la construction symétrique, la première barre 91 et la deuxième barre 92 sont toujours en symétrie par rapport à l'axe de la troisième rainure principale 94.Because of the symmetrical construction, the first bar 91 and the second bar 92 are always symmetrical about the axis of the third main groove 94.

La figure 2 illustre une réalisation simplifiée en forme de té ; la figure 5 représente une variante de la figure 2 avec un mobile coupleur en forme de croix, équilibré pour éviter tout balourd , et qui comporte, symétrique du troisième bras 85 par rapport à l'axe D, un quatrième bras 85A, équipé de la même façon, avec une rainure 94A, un patin 93A, et deux bras 91A et 92 A articulés aux goupilles 71 et 72.The figure 2 illustrates a simplified embodiment in the form of tee; the figure 5 represents a variant of the figure 2 with a mobile cross coupler, balanced to avoid unbalance, and which comprises, symmetrical to the third arm 85 relative to the axis D, a fourth arm 85A, equipped in the same way, with a groove 94A, a skid 93A, and two arms 91A and 92A hinged to the pins 71 and 72.

Le mobile 8 peut prendre toute autre forme, notamment circulaire.The mobile 8 can take any other form, including circular.

Il est, de préférence, équilibré statiquement et dynamiquement.It is preferably balanced statically and dynamically.

Dans le fonctionnement propre du premier résonateur 21, et du deuxième résonateur opposé 22, la première goupille 71 et la deuxième goupille opposée 72 ont chacune une trajectoire fermée, sensiblement elliptique, d'autant meilleure qu'elle est proche d'une trajectoire circulaire. Afin d'empêcher chaque goupille 71, 72, de dépasser l'axe D, afin de permettre une telle trajectoire proche d'un cercle, et pour faciliter tout redémarrage éventuel, les butées radiales intérieures de fin de course 810 et 820 sont distantes de l'axe D, du même côté de celui-ci que les butées extérieures respectives 811 et 821.In the clean operation of the first resonator 21, and the second resonator 22 opposite, the first pin 71 and the second pin opposite 72 each have a closed path, substantially elliptical, the better it is close to a circular path. In order to prevent each pin 71, 72, to exceed the axis D, to allow such a path close to a circle, and to facilitate any restart, the inner radial end stops 810 and 820 are distant from the axis D on the same side thereof as the respective outer stops 811 and 821.

Dans une réalisation particulière, la première goupille 71 est solidaire de la cage interne d'un roulement dont la cage externe est solidaire d'un premier patin qui coulisse, sans jeu ou avec friction, dans la première rainure 81. Dans une réalisation particulière, ce premier patin coulisse avec friction dans la première rainure 81.In a particular embodiment, the first pin 71 is secured to the inner cage of a bearing whose outer cage is secured to a first sliding pad, without play or friction, in the first groove 81. In a particular embodiment, this first shoe slides with friction in the first groove 81.

Dans une réalisation particulière, la deuxième goupille opposée 72 est solidaire de la cage interne d'un roulement dont la cage externe est solidaire d'un deuxième patin qui coulisse, sans jeu ou avec friction, dans la deuxième rainure 82. Dans une réalisation particulière, ce deuxième patin coulisse avec friction dans la deuxième rainure 82.In a particular embodiment, the second opposite pin 72 is secured to the inner race of a bearing whose outer cage is secured to a second sliding pad, without play or friction, in the second groove 82. In a particular embodiment this second shoe slides with friction in the second groove 82.

Dans une réalisation particulière, chaque tourillon 95 est solidaire de la cage interne d'un roulement dont la cage externe est solidaire du patin principal 93. Dans une réalisation particulière, ce patin principal 93 coulisse avec friction dans la troisième rainure principale 94.In a particular embodiment, each pin 95 is integral with the inner race of a bearing whose outer cage is integral with the main shoe 93. a particular embodiment, this main shoe 93 slides with friction in the third main groove 94.

L'invention permet, grâce à son agencement symétrique, de se libérer de l'inconvénient d'une forte réaction au niveau de l'attache à la platine, qui est caractéristique d'un résonateur à translation curviligne rotative, issu de la mise en série de deux oscillateurs à guidage flexible comportant chacun une masse suspendue par rapport à une autre par une pluralité de lames flexibles, et monté seul.The invention makes it possible, thanks to its symmetrical arrangement, to be free from the drawback of a strong reaction at the level of the attachment to the plate, which is characteristic of a rotary curvilinear translation resonator, resulting from the implementation of series of two flexible guide oscillators each having a mass suspended relative to another by a plurality of flexible blades, and mounted alone.

Le mobile coupleur 8 présente l'avantage de synchroniser parfaitement le premier résonateur 21 et le deuxième résonateur opposé 22, ainsi que de maîtriser les frottements. L'emploi de roulements ou similaires au niveau des pivotements permet de minimiser les frottements, la présence d'une friction sur les patins permet de maîtriser la forme de la trajectoire elliptique de la première goupille 71 et la deuxième goupille opposée 72.The mobile coupler 8 has the advantage of perfectly synchronizing the first resonator 21 and the second opposite resonator 22, as well as to control the friction. The use of bearings or the like at the pivoting level minimizes friction, the presence of friction on the pads makes it possible to control the shape of the elliptical trajectory of the first pin 71 and the second pin 72 opposite.

Dans le premier résonateur 21 comme dans le deuxième résonateur opposé 22, les forces de rappel ne sont pas exactement proportionnelles aux déplacements, car les guidages flexibles utilisés dans de tels résonateurs sont très courts, ce qui entraîne une non-linéarité de la force du ressort en fonction du déplacement, ce qui introduit un défaut d'isochronisme. Pour rendre le système isochrone, on agence de façon particulière la rainure respective 81, 82, qui sert de guidage à la goupille 71, 72, respective. Dans une réalisation particulière, on donne à chaque rainure 71, 72, une forme créant une force radiale, qui corrige la variation de la constante du ressort des lames du guidage flexible. Cette force peut être dirigée vers le centre ou vers l'extérieur, en fonction de la forme de la rainure. Une première exécution est une rainure entièrement courbe. Dans une variante avantageuse, la concavité de cette rainure 71, 72, décroit progressivement depuis l'axe D. Dans une deuxième exécution, la rainure 71, 72, comporte une première partie intérieure radiale par rapport à l'axe D, qui est tangente à une deuxième partie courbe de concavité constante ou décroissante en s'éloignant de l'axe D de façon à compenser les défauts d'isochronisme. Dans une autre variante, la rainure 71, 72, est droite mais non radiale.In the first resonator 21 as in the second opposite resonator 22, the restoring forces are not exactly proportional to the displacements, because the flexible guides used in such resonators are very short, resulting in a non-linearity of the spring force depending on the displacement, which introduces a defect of isochronism. In order to make the system isochronous, the respective groove 81, 82, which serves as a guide for the respective pin 71, 72, is arranged in a particular way. In a particular embodiment, each groove 71, 72 is given a shape creating a radial force, which corrects the variation of the spring constant of the blades of the flexible guide. This force can be directed towards the center or outward, depending on the shape of the groove. A first run is a fully curved groove. In an advantageous variant, the concavity of this groove 71, 72 decreases progressively from the axis D. In a second embodiment, the groove 71, 72 has a first radial inner portion with respect to the axis D, which is tangent to a second curve portion of constant or decreasing concavity away from the axis D so as to compensate for isochronism defects. In another variant, the groove 71, 72 is straight but not radial.

L'invention concerne encore un tel résonateur 1 équipé d'un tel mobile coupleur 8, un mouvement 100 équipé d'un tel résonateur et comportant une platine porteuse des éléments fixes de ce résonateur 1, une montre 200 équipée d'un tel mouvement 100.The invention also relates to such a resonator 1 equipped with such a mobile coupler 8, a movement 100 equipped with such a resonator and comprising a plate carrier of the fixed elements of this resonator 1, a watch 200 equipped with such a movement 100.

Claims (17)

  1. Mobile coupling member (8) for synchronisation of a plurality of timepiece resonators (21; 22) having the same frequency and each including an interface pin (71; 72) arranged to transmit a torque to its respective resonator (21; 22), and each said interface pin (71; 72) periodically following a plane, closed trajectory, wherein said mobile coupling member (8) includes, integral with a structure (85) that pivots about a pivot axis (D) and includes means for receiving a torque, means for holding said pins (71; 72) at an equal distance from said axis (D), characterized in that said holding means of said mobile coupling member (8) include, integral with said structure (85), a plurality of grooves (81; 82), each substantially radial with respect to said axis (D), in a plane perpendicular to said axis (D), for receiving each said pin (71; 72), said grooves (81; 82) being disposed symmetrically in pairs with respect to a main, straight groove (94) passing through said axis (D), in a plane perpendicular to said axis (D), and inside said main groove (94), a main slide-block (93) slides freely and cooperates with a plurality of bars (91; 92) each arranged to be hinged on one side to one of said pins (71; 72), and hinged on the other side to said main slide-block (93).
  2. Mobile coupling member (8) according to claim 1, characterized in that said bars (91; 92) are of identical length to each other for each pair of said grooves (81; 82), symmetrical to said axis (D), to restrict said pins (71; 72) to symmetrical trajectories with respect to said main groove (94).
  3. Mobile coupling member (8) according to claim 1 or 2, characterized in that said mobile coupling member (8) is arranged for synchronisation of two said timepiece resonators (21; 22) and includes two grooves (81; 82) corresponding to said pins (71; 72) of said two resonators (21; 22) and which are straight and aligned with each other and with said axis (D), to restrict said pins (71; 72) to symmetrical trajectories with respect to said axis (D).
  4. Mobile coupling member (8) according to any of claims 1 to 3, characterized in that said mobile coupling member (8) includes a first groove (81) substantially radial with respect to said axis (D) and including two, radial, inner (810) and outer (811) end-of-travel stops for limiting the radial travel of a said pin (71), said first groove (81) being arranged in a first arm (83), which extends in a plane parallel to a coupling plane (P8) perpendicular to said axis (D), and in that said mobile coupling member (8) includes a second groove (82) substantially radial with respect to said axis (D) and including two, radial, inner (820) and outer (821) end-of-travel stops for limiting the radial travel of a said pin (72), said second groove (82) being arranged in a second arm (84), which extends in a plane parallel to said coupling plane (P8).
  5. Mobile coupling member (8) according to claim 4, characterized in that said first groove (81) and said second groove (82) are straight and aligned with each other and with said axis (D), and in that said main groove (94) is orthogonal to said first groove (81) and to said second groove (82).
  6. Mobile coupling member (8) according to claim 4 or 5, characterized in that, to prevent each said pin (71; 72) from going beyond said axis (D), said inner, radial, end-of-travel stops (810; 820) are remote from said axis (D), on the same side as that of said respective outer stops (811; 821).
  7. Mobile coupling member (8) according to any of claims 4 to 6, characterized in that said mobile coupling member (8) includes a first slide-block that slides, with no play or with friction, in said first groove (81) and which carries an outer housing of a ball bearing whose inner housing is arranged to receive a said pin (71) and/or in that said mobile coupling member (8) includes a second slide-block which slides, with no play or with friction, in said second groove (82) and which carries an outer housing of a ball bearing whose inner housing is arranged to receive a said pin (72).
  8. Mobile coupling member (8) according to any of claims 1 to 7, characterized in that said mobile coupling member (8) includes, centred on said axis (D), an outer housing (87) of a ball bearing that includes an inner housing (86) integral with an arbor arranged to be mounted between bearings secured to a main plate.
  9. Mobile coupling member (8) according to any of claims 1 to 8, characterized in that said mobile coupling member (8) includes or constitutes an escape wheel subjected to a torque provided by a timepiece movement (100).
  10. Balanced resonator (1) including a plurality of timepiece resonators (21; 22) having the same frequency and each including an interface pin (71; 72) arranged to transmit a torque to its respective resonator (21; 22), and each said interface pin (71; 72) periodically following a plane, closed trajectory and including a mobile coupling member (8) according to any of claims 1 to 9, arranged to cooperate with said interface pins (71; 72), characterized in that said mobile coupling member (8) constitutes the only mechanical connection between the moving elements of said resonators (21; 22).
  11. Balanced resonator (1) according to claim 10, characterized in that said balanced resonator (1) includes two said timepiece resonators (21; 22).
  12. Balanced resonator (1) according to claim 11, characterized in that said balanced resonator (1) includes at least one timepiece resonator (21; 22) of the rotational curvilinear translation type, obtained by placing in series two oscillators having flexible pivots, each including one weight suspended relative to another by a plurality of flexible strips or ball joint bars at least one of which is returned by a spring.
  13. Balanced resonator (1) according to claim 12, characterized in that said balanced resonator (1) includes two said timepiece resonators, which are a first resonator (21) and a second opposite resonator (22), each of the rotational curvilinear translation type, obtained by placing in series two oscillators having flexible pivots, each including one weight suspended relative to another by a plurality of flexible strips.
  14. Balanced resonator (1) according to claim 13, characterized in that said first resonator (21) and said second opposite resonator (22) are identical and assembled symmetrically, one opposite the other.
  15. Balanced resonator (1) according to any of claims 10 to 14, characterized in that said mobile coupling member (8) includes a first said groove (81), substantially radial with respect to said axis (D), in which a first said pin (71) of a first resonator (21) moves with minimum play or with friction between two, radial, inner (810) and outer (811) end-of-travel stops, and includes a second said groove (82), substantially radial with respect to said axis (D), in which a second said opposite pin (72) of a second said resonator (22) moves with minimum play or with friction, between two, radial, inner (820) and outer (821) end-of-travel stops.
  16. Movement (100) including, mounted on a main plate by means of its fixed elements, at least one balanced resonator (1) according to any of claims 10 to 15.
  17. Watch (200) including a movement (100) according to claim 16.
EP14186911.5A 2014-09-09 2014-09-29 Synchronisation of clock resonators Active EP2995999B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP14186911.5A EP2995999B1 (en) 2014-09-09 2014-09-29 Synchronisation of clock resonators
JP2015150444A JP5957129B2 (en) 2014-09-09 2015-07-30 Clock resonator synchronization
CN201510548700.9A CN105467812B (en) 2014-09-09 2015-08-31 The synchronization of clock and watch resonator
RU2015138391A RU2685745C2 (en) 2014-09-09 2015-09-08 Synchronization of clock resonators
US14/847,090 US9354609B2 (en) 2014-09-09 2015-09-08 Synchronization of timepiece resonators
HK16111305.9A HK1223162A1 (en) 2014-09-09 2016-09-27 Synchronisation of timepiece resonators

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH01361/14A CH709535B1 (en) 2014-02-17 2014-09-09 Rotary resonator, movement equipped with such a resonator and watch equipped with such a movement.
EP14184155.1A EP2908189A3 (en) 2014-02-17 2014-09-09 Mechanism for synchronising two timepiece oscillators with a gear-train
EP14184631.1A EP2908190B1 (en) 2014-02-17 2014-09-12 Combined resonator with minimal friction
EP14186911.5A EP2995999B1 (en) 2014-09-09 2014-09-29 Synchronisation of clock resonators

Publications (2)

Publication Number Publication Date
EP2995999A1 EP2995999A1 (en) 2016-03-16
EP2995999B1 true EP2995999B1 (en) 2017-12-13

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EP14186911.5A Active EP2995999B1 (en) 2014-09-09 2014-09-29 Synchronisation of clock resonators

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EP (1) EP2995999B1 (en)
JP (1) JP5957129B2 (en)
CN (1) CN105467812B (en)
CH (1) CH710115A2 (en)
HK (1) HK1223162A1 (en)
RU (1) RU2685745C2 (en)

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CH713164B1 (en) * 2016-11-16 2021-10-29 Swatch Group Res & Dev Ltd Protection of the blades of a mechanical watch resonator in the event of an impact.
FR3059792B1 (en) 2016-12-01 2019-05-24 Lvmh Swiss Manufactures Sa DEVICE FOR WATCHMAKING PART, CLOCK MOVEMENT AND TIMEPIECE COMPRISING SUCH A DEVICE
EP3336613B1 (en) * 2016-12-16 2020-03-11 Association Suisse pour la Recherche Horlogère Timepiece resonator with two balances arranged to oscillate in a single plane
EP3435173B1 (en) * 2017-07-26 2020-04-29 ETA SA Manufacture Horlogère Suisse Mechanical movement with isochronous rotary resonator, which is not position-sensitive
CH714093A2 (en) * 2017-08-29 2019-03-15 Swatch Group Res & Dev Ltd Isochronous swivel for clock resonator.
US20210208537A1 (en) * 2017-10-02 2021-07-08 Manufacture D'horlogerie Audemars Piguet Sa Timepiece setting device with harmonic oscillator having rotating weights and a common recoil strength
WO2019141789A1 (en) * 2018-01-18 2019-07-25 Ecole polytechnique fédérale de Lausanne (EPFL) Horological oscillator
EP3561607B1 (en) * 2018-04-23 2022-03-16 ETA SA Manufacture Horlogère Suisse Collision protection of a resonator mechanism with rotatable flexible guiding
US11409245B2 (en) 2018-11-08 2022-08-09 Eta Sa Manufacture Horlogere Suisse Anti shock protection for a resonator mechanism with a rotary flexure bearing

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Also Published As

Publication number Publication date
JP2016070919A (en) 2016-05-09
US20160091863A1 (en) 2016-03-31
EP2995999A1 (en) 2016-03-16
CN105467812A (en) 2016-04-06
HK1223162A1 (en) 2017-07-21
RU2015138391A3 (en) 2019-03-21
JP5957129B2 (en) 2016-07-27
RU2685745C2 (en) 2019-04-23
CN105467812B (en) 2017-10-03
RU2015138391A (en) 2017-03-15
US9354609B2 (en) 2016-05-31
CH710115A2 (en) 2016-03-15

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