EP3572885A1 - Timepiece mechanical oscillator that is isochronous in any position - Google Patents

Timepiece mechanical oscillator that is isochronous in any position Download PDF

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Publication number
EP3572885A1
EP3572885A1 EP18174332.9A EP18174332A EP3572885A1 EP 3572885 A1 EP3572885 A1 EP 3572885A1 EP 18174332 A EP18174332 A EP 18174332A EP 3572885 A1 EP3572885 A1 EP 3572885A1
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EP
European Patent Office
Prior art keywords
branch
oscillator
mechanical oscillator
compass
deformable
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.)
Granted
Application number
EP18174332.9A
Other languages
German (de)
French (fr)
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EP3572885B1 (en
Inventor
Pascal Winkler
Laurent Klinger
Jean-Luc Helfer
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
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
Application filed by ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP18174332.9A priority Critical patent/EP3572885B1/en
Priority to US16/386,308 priority patent/US10838364B2/en
Priority to JP2019091225A priority patent/JP6738461B2/en
Priority to CN201910438641.8A priority patent/CN110531604B/en
Publication of EP3572885A1 publication Critical patent/EP3572885A1/en
Application granted granted Critical
Publication of EP3572885B1 publication Critical patent/EP3572885B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—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
    • G04B17/045—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
    • 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
    • G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
    • 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
    • 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
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • 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
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/06—Manufacture or mounting processes
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
    • G04C3/10—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
    • G04C3/101—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details
    • G04C3/102—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details of the mechanical oscillator or of the coil

Definitions

  • the invention relates to a mechanical clock oscillator, comprising at least one base arranged to be fixed to a plate or a bridge of a clockwork movement, and at least one inertial element arranged to oscillate about a pivot axis virtual fixed position relative to said at least one base or fixed position relative to said bases when said oscillator has several, in a pivot plane perpendicular to said virtual pivot axis, each said inertial element being suspended from at least one said base by a plurality of flexible links each comprising at least one resilient blade, and said flexible links together defining said virtual pivot axis.
  • the invention also relates to a watch movement, comprising at least one such mechanical oscillator, and comprising a plate or a bridge for fixing each said base, which comprises each said oscillator.
  • the invention also relates to a watch comprising at least one such watch movement, and / or comprising at least one such mechanical oscillator.
  • the invention relates to the field of high-precision timepieces, which are very insensitive to external physical parameters, comprising elastic leaf oscillators with a high quality factor, and which retain high isochronism qualities in all the positions of the wearer. .
  • the patent application EP3299905 on behalf of CSEM proposes a solution that allows to go to higher amplitudes, typically 30 °, which is a real progress.
  • the step is not yet independent of the orientation of the watch in the gravitational field, in particular in the positions X +, X-, Y +, Y-, in which the running characteristics as a function of the amplitude are similar to each other, but very far from the walk characteristic as a function of the amplitude, which corresponds to the horizontal position, perpendicular to the gravitational field, which characteristic is excellent.
  • the invention proposes to develop a mechanical oscillator with flexible connections capable of a high amplitude, and typically up to 25 ° at least, and which has in the vertical positions of the door operating characteristics as a function of the amplitude equivalent to that measured in horizontal position.
  • the invention relates to a mechanical clock oscillator according to claim 1.
  • the invention further relates to a watch movement according to claim 28.
  • the invention further relates to a watch according to claim 29.
  • the difficulty of the problem described above is to determine a geometry of the flexible links of the oscillator, which allows to obtain a solution that satisfies the two conditions of operation independent of the amplitude, and of walking independent of the orientation of the oscillator.
  • the watch in the field of gravity while having an amplitude for industrial exploitation, typically more than 25 °, and preferably from 30 ° to 40 ° or more.
  • the invention relates to a mechanical clock oscillator 100, which comprises at least one base 2 arranged to be fixed to a plate 3 or a bridge of a watch movement 200.
  • This oscillator 100 comprises at least one inertial element 4, which is arranged to oscillate about a virtual pivot axis D of fixed position with respect to this base 2 if it is unique, or with respect to these bases 2 when the oscillator 100 has several, in a pivot plane P perpendicular to the virtual pivot axis D.
  • Each inertial element 4 is suspended from at least one such base 2 by a plurality of flexible links 5 each comprising at least one resilient blade 6. And these flexible links 5 together define the virtual pivot axis D, in their particular geometrical arrangement, in projection on the pivot plane P of the inertial element 4.
  • the present invention attempts to avoid any configuration where the inertial mass of the oscillator, typically a pendulum, comprises rigid arms extending from the serge to an inner diameter of elastic blade support. 6
  • the invention favors the configuration where elastic blades 6 are fixed to the serge of the inertial element 4 on the one hand, and to the frame (platinum or bridge of the movement) of on the other hand, at a fixed base 2, their end being situated on the outside diameter, that is to say the farthest away from the virtual pivoting axis D defined by the flexible links 5.
  • the invention favors a crossing of the blades, of course in projection on the pivot plane P because these resilient blades 6 are arranged in different and parallel levels, at the pivot axis D.
  • this configuration according to the invention The invention requires a stack on more levels than the prior art, but can also accommodate reduced dimensions of blades, which does little alter the overall size, which is preferably inscribed in the bulk of the inertial element 4 himself.
  • At least one such flexible connection 5 comprises at least one deformable compass 7.
  • This term compass is chosen to describe in a simple way a component which is preferably monobloc, and which comprises, on either side of a compass top, deformable branches, which are attached to different components of the oscillator ; such a deformable compass is not articulated, it is in fact analogous to a dowsing rod.
  • the invention is illustrated with a single branch on each side of the compass crown, but it is quite possible to equip the deformable compass with a plurality of branches, at least on one side of its body. top, the number of branches on each side of the summit may be different.
  • this deformable compass 7 comprises such an elastic blade 6 forming a first leg 8, which is arranged to be, at a first outer end 82, fixed to such a base 2, or which integral with a said base 2, in particular in one-piece execution.
  • This first branch 8 is angularly movable, in projection on the pivot plane P, with respect to another elastic blade 6 which forms a second branch 9 of the deformable compass 7.
  • This second branch 9 is, at a second external end 94, arranged to be fixed to the inertial element 4, or is integral with the inertial element 4.
  • the first branch 8 and the second branch 9 of each deformable compass 7 are joined at a cusp 11, which defines a virtual vertex 10 of the deformable compass 7.
  • branches of this compass are deformed during the oscillation.
  • branches which are straight in the rest position of the oscillator take a shape substantially in a circular arc of variable radius during the oscillation, during which the top 10 of the deformable compass 7 is movable relative to the axis virtual pivoting D, which it is farthest in the rest position of the oscillator 100.
  • the projection on the pivot plane P of the virtual summit 10 is on a first side of the virtual pivot axis D, opposite to a second side where the first end 82 and the second end 94 project.
  • the geometrical field swept by the elastic blades 6 during the oscillation intersects the virtual pivot axis D.
  • the angle formed by the projection, on the pivot plane P, of the virtual vertex 10, the virtual pivot axis D, and the first end 82 and / or the second end 94 is between 160 ° and 200 °.
  • the first branch 8 and the second branch 9 are symmetrical, in projection on the pivot plane P, with respect to a straight line forming a compass axis D7 joining the virtual pivot axis D and the projection of the virtual vertex 10.
  • This projection of the virtual vertex 10 is located on a first side of the virtual pivot axis D, opposite to a second side where the first end 82 and the second end project. second end 94.
  • Each deformable compass 7 thus forms, during the operation of the oscillator 100, a vee whose branches are attached externally to the base and the inertial element, and whose tip (the vertex) is free .
  • the vee is closed, and the first leg 8 and the second leg 9 are superimposed.
  • the R / L ratio between, on the one hand, the eccentricity R of the vertex 10 with respect to the virtual pivot axis D, in projection on the pivot plane P, and on the other hand, the shortest length L between the vertex 10 and the first end 82 or the second end 94, in projection on the pivot plane P, is between 0.12 and 0.18, or between 0.47 and 0.53. More particularly, the lengths L between the vertex 10 and the first end 82 on the one hand, and the second end 94 on the other hand, in projection on the pivot plane P, are equal, as visible on FIG. figure 3 .
  • all the compass axes D7 of all the deformable compasses 7, which comprise the flexible links 5, are uniformly distributed angularly around the virtual pivot axis D.
  • At least one deformable compass 7 comprises 6 straight elastic blades. More particularly, all the elastic blades 6 are straight.
  • At least one deformable compass 7 comprises the first branch 8 in a first level P1 parallel to the pivot plane P, and the second branch 9 in a second level P2 parallel to the pivot plane P and distinct from the first P1 level. It is possible to arrange this oscillator with left blades, however the complexity and bulk are increased, without a benefit is clearly visible. More particularly, each deformable compass 7 comprises the first branch 8 in a first level P1 parallel to the pivot plane P, and said second branch 9 in a second level P2 parallel to the pivot plane P and distinct from the first level P1.
  • At least one deformable compass 7 comprises a first branch 8 and a second branch 9 whose projections on the pivot plane P, in the unstressed rest state of the oscillator 100, are superimposed on each other. More particularly, the projections of the first branch 8 and the second branch 9, on the pivot plane P, in the unstressed state of rest of the oscillator 100 are identical to each other.
  • At least one inertial element 4 extends, in the direction of the virtual pivot axis D, on either side of the set of flexible links 5 by which it is suspended from the base 2 or the bases 2, between an upper plane PS and a lower plane PI. More particularly, each inertial element 4 extends, in the direction of the virtual pivot axis D, on either side of the set of flexible connections 5 by which it is suspended from the base 2 or the bases 2.
  • At least one inertial element 4 has no axial bearing, and is devoid of a radial arm, with respect to the virtual pivot axis D, other than the flexible links 5 by which it is suspended from the base 2 or the bases. 2. More particularly, each inertial element 4 has no axial bearing, and is devoid of a radial arm, with respect to the virtual pivot axis D, other than the flexible links 5 by which it is suspended from the base 2 or at bases 2.
  • At least one deformable compass 7 comprises at least one intermediate weight, more rigid than the first leg 8 and the second leg 9, on the first leg 8 and / or on the second leg 9 and / or on the Cursing edge 11.
  • a masselotage at the level of the cusp 11 seems superfluous, the variant illustrated by the figures is limited to ensure the mechanical connection between the first branch 8 and the second branch 9
  • the oscillator 100 comprises, on the same level in the direction of the virtual pivot axis D, three identical flexible links 5 and 120 ° from each other.
  • the R / L ratio between, on the one hand, the eccentricity R of the vertex 10 with respect to the virtual pivot axis D, in projection on the pivot plane P, and on the other hand, the shortest length L between the vertex 10 and the first end 82 or the second end 94, in projection on the pivot plane P is between 0.12 and 0.18, or between 0.47 and 0.53.
  • FIG. 1 The figures illustrate various variants comprising three flexible links thus superimposed, arranged at 120 ° in projection on the plane P: upper compass 7A with first upper branch 8A and second upper branch 9A, intermediate compass 7B with first intermediate branch 8B and second intermediate branch 9B lower compass 7C with first lower leg 8C and second lower leg 9C.
  • the oscillator 100 comprises, on the same level in the direction of the virtual pivot axis D, an odd number of flexible connections 5, preferably identical, to facilitate the self-starting of the oscillator.
  • the dimensions suitable for such elastic blades 6 for oscillators of watches are: length from 0.50 to 4.00 mm, a height of 0.10 to 0.50 mm, a thickness of 10 to 40 micrometers, and R / L of between 0.10 and 0.20 or between 0.45 and 0.55, and more particularly between 0.12 and 0.18, or between 0.47 and 0.53.
  • the figure 4 illustrates a particular case where the useful lengths of the elastic blades 6 are different, the blade projections on the pivot plane P are identical only on a part, which has the vertex 10 of the compass, and extends from both sides other of the virtual pivot axis D defined by the flexible links 5. It is still possible to imagine non-symmetrical branches, for example of different thicknesses, of different shapes, or other.
  • the figure 9 illustrates another variant where the elastic blades that constitute the flexible links are not straight, but only symmetrical with respect to a compass axis passing through the compass apex and the virtual pivot axis, in projection on the plane of pivoting.
  • the blades could be in ground key, or other shape to develop their length, such as a spiral, or other.
  • Each said flexible connection 5 is feasible in silicon and / or silicon dioxide, or at least partially amorphous material, or DLC, or quartz, or similar materials.
  • the invention also relates to a watch movement 200, comprising at least one such mechanical oscillator 100, and comprising a plate 3 or a bridge for fixing each base 2, which each oscillator 100 comprises.
  • the invention also relates to a watch 300 comprising at least one watch movement 200, and / or comprising at least one such mechanical oscillator 100.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnetism (AREA)
  • Electric Clocks (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Micromachines (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

Oscillateur mécanique (100) avec élément inertiel (4) oscillant autour d'un axe de pivotement virtuel (D) de position fixe par rapport à une embase (2) fixe à laquelle il est suspendu par plusieurs liaisons flexibles (5), chacune comportant un compas déformable (7) comportant des lames élastiques (6) formant une première branche (8) fixée à une embase (2) et une deuxième branche (9) fixée audit élément inertiel (4), jointives au niveau d'une arête de rebroussement (11) définissant un sommet (10) dudit compas déformable (7), où dans un état de repos non contraint dudit oscillateur(100), la projection dudit sommet (10) est d'un premier côté dudit axe de pivotement (D), opposé à un deuxième côté où se projettent les extrémités (82 ; 94) des première (8) et deuxième (9) branches.Mechanical oscillator (100) with inertial element (4) oscillating about a virtual pivot axis (D) of fixed position with respect to a fixed base (2) to which it is suspended by a plurality of flexible links (5), each comprising a deformable compass (7) comprising resilient blades (6) forming a first leg (8) fixed to a base (2) and a second leg (9) fixed to said inertial element (4), joined at an edge of cusp (11) defining a vertex (10) of said deformable compass (7), wherein in an unstressed rest state of said oscillator (100), the projection of said vertex (10) is on a first side of said pivot axis (D) ), opposite a second side projecting the ends (82; 94) of the first (8) and second (9) branches.

Description

Domaine de l'inventionField of the invention

L'invention concerne un oscillateur mécanique d'horlogerie, comportant au moins une embase agencée pour être fixée à une platine ou un pont d'un mouvement d'horlogerie, et au moins un élément inertiel agencé pour osciller autour d'un axe de pivotement virtuel de position fixe par rapport à ladite au moins une embase ou de position fixe par rapport auxdites embases quand ledit oscillateur en comporte plusieurs, dans un plan de pivotement perpendiculaire audit axe de pivotement virtuel, chaque dit élément inertiel étant suspendu à au moins une dite embase par plusieurs liaisons flexibles comportant chacune au moins une lame élastique, et lesdites liaisons flexibles définissant ensemble ledit axe de pivotement virtuel.The invention relates to a mechanical clock oscillator, comprising at least one base arranged to be fixed to a plate or a bridge of a clockwork movement, and at least one inertial element arranged to oscillate about a pivot axis virtual fixed position relative to said at least one base or fixed position relative to said bases when said oscillator has several, in a pivot plane perpendicular to said virtual pivot axis, each said inertial element being suspended from at least one said base by a plurality of flexible links each comprising at least one resilient blade, and said flexible links together defining said virtual pivot axis.

L'invention concerne encore un mouvement d'horlogerie, comportant au moins un tel oscillateur mécanique, et comportant une platine ou un pont pour la fixation de chaque dite embase, que comporte chaque dit oscillateur.The invention also relates to a watch movement, comprising at least one such mechanical oscillator, and comprising a plate or a bridge for fixing each said base, which comprises each said oscillator.

L'invention concerne encore une montre comportant au moins un tel mouvement d'horlogerie, et/ou comportant au moins un tel oscillateur mécanique.The invention also relates to a watch comprising at least one such watch movement, and / or comprising at least one such mechanical oscillator.

L'invention concerne le domaine des pièces d'horlogerie de haute précision, très peu sensibles aux paramètres physiques externes, comportant des oscillateurs à lames élastiques, à facteur de qualité élevé, et conservant de hautes qualités d'isochronisme dans toutes les positions du porté.The invention relates to the field of high-precision timepieces, which are very insensitive to external physical parameters, comprising elastic leaf oscillators with a high quality factor, and which retain high isochronism qualities in all the positions of the wearer. .

Arrière-plan de l'inventionBackground of the invention

Les travaux les plus récents sur les oscillateurs d'horlogerie ont présenté différents types de liaisons flexibles, pour le pivotement et le rappel des balanciers.The most recent work on watch oscillators has presented various types of flexible links, for the pivoting and the reminder of the pendulums.

Sans rentrer dans le détail, on notera que deux conditions doivent absolument être remplies pour permettre l'utilisation de ces oscillateurs dans des montres :

  • la marche doit dépendre le moins possible de l'amplitude d'oscillation, même si on peut éventuellement effectuer une compensation du retard à l'échappement ;
  • la marche doit être indépendante de l'orientation de la montre dans le champ de gravité.
Without going into detail, note that two conditions must absolutely be met to allow the use of these oscillators in watches:
  • the step must depend as little as possible on the amplitude of oscillation, even if it is possible to carry out an escape delay compensation;
  • the walk must be independent of the orientation of the watch in the gravity field.

Différentes divulgations considèrent assurer ces deux caractéristiques indispensables, mais les simulations et les essais pratiques démontrent, en fait, des carences, en particulier dans certaines positions du porté, où les résultats attendus ne peuvent être assurés.While various disclosures consider these two characteristics indispensable, simulations and practical tests demonstrate, in fact, deficiencies, particularly in certain positions of the scope, where the expected results can not be assured.

Les divulgations actuelles présentent en général un défaut qui limite leur mise en application industrielle, et qui consiste en la faible valeur d'amplitude d'oscillation possible, typiquement jusqu'à 10° ou 15° seulement. Cette limite s'explique, soit parce qu'il est impossible d'aller plus haut en raison des contraintes dans les lames constitutives des liaisons flexibles, soit parce qu'au moins une des deux conditions exposées ci-dessus, (marche indépendante de l'amplitude, et marche indépendante de l'orientation de la montre dans le champ de gravité) n'est plus satisfaite.Current disclosures generally have a defect which limits their industrial application, and which consists of the small amplitude value of oscillation possible, typically up to 10 ° or 15 ° only. This limit is explained either because it is impossible to go higher because of the stresses in the blades constituting the flexible links, or because at least one of the two conditions set out above, (independent of the amplitude, and independent operation of the orientation of the watch in the gravitational field) is no longer satisfied.

La demande de brevet EP3299905 au nom de CSEM propose une solution qui permet d'aller à des amplitudes plus élevées, typiquement 30°, ce qui est un réel progrès. Toutefois, la marche n'est pas encore indépendante de l'orientation de la montre dans le champ de gravité, en particulier dans les positions X+, X-, Y+, Y-, dans lesquelles les caractéristiques de marche en fonction de l'amplitude sont similaires entre elles, mais très éloignées de la caractéristique de marche en fonction de l'amplitude, qui correspond à la position horizontale, perpendiculaire au champ de gravité, laquelle caractéristique est excellente.The patent application EP3299905 on behalf of CSEM proposes a solution that allows to go to higher amplitudes, typically 30 °, which is a real progress. However, the step is not yet independent of the orientation of the watch in the gravitational field, in particular in the positions X +, X-, Y +, Y-, in which the running characteristics as a function of the amplitude are similar to each other, but very far from the walk characteristic as a function of the amplitude, which corresponds to the horizontal position, perpendicular to the gravitational field, which characteristic is excellent.

Résumé de l'inventionSummary of the invention

L'invention se propose de développer un oscillateur mécanique à liaisons flexibles apte à une forte amplitude, et typiquement jusqu'à 25° au moins, et qui possède dans les positions verticales du porté des caractéristiques de marche en fonction de l'amplitude équivalentes à celle mesurée en position horizontale.The invention proposes to develop a mechanical oscillator with flexible connections capable of a high amplitude, and typically up to 25 ° at least, and which has in the vertical positions of the door operating characteristics as a function of the amplitude equivalent to that measured in horizontal position.

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

L'invention concerne encore un mouvement d'horlogerie selon la revendication 28.The invention further relates to a watch movement according to claim 28.

L'invention concerne encore une montre selon la revendication 29.The invention further relates to a watch according to claim 29.

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 perspective vue de dessus, un oscillateur selon l'invention, dans une réalisation particulière et non limitative où un élément inertiel unique est suspendu à des embases fixées à la structure d'un mouvement par trois liaisons flexibles de caractéristiques similaires, définissant ensemble l'axe de pivotement virtuel de l'élément inertiel, et superposées dans différents niveaux parallèles à un plan de pivotement de l'élément inertiel, perpendiculaire à l'axe de pivotement virtuel ;
  • la figure 2 représente, de façon schématisée, et en vue de dessus, l'oscillateur de la figure 1 ;
  • la figure 3 est une section selon un plan AA, passant par l'axe de pivotement, d'un tel oscillateur selon la figure 1 ou 2, le plan de section passant par deux lames élastiques qui constituent ensemble un compas déformable, que comporte un des liaisons flexibles de cet oscillateur, dans une variante particulière où les branches de compas constituées par ces deux lames élastiques qui sont dans deux niveaux superposés, parallèles au plan de pivotement, ont des longueurs utiles, entre leur encastrement et un sommet virtuel de compas au niveau d'une arête de rebroussement, qui sont égales. Dans cette variante, l'élément inertiel s'étend de part et d'autre de l'ensemble des lames élastiques;
  • la figure 4 illustre, de façon similaire à la figure 3, une autre variante, où les longueurs utiles sont différentes, les projections de lames sur le plan de pivotement ne sont identiques que sur une partie, qui comporte le sommet du compas, et s'étend de part et d'autre de l'axe de pivotement virtuel défini par les liaisons flexibles ;
  • la figure 5 est un schéma-blocs qui représente une montre comportant un mouvement d'horlogerie, lequel comporte un tel oscillateur mécanique, et une platine ou un pont pour la fixation de chaque dite embase, que comporte cet oscillateur ;
  • la figure 6 illustre, de façon similaire à la figure 3, une autre variante, où une même liaison flexible comporte une superposition de six lames élastiques, ici constituant trois compas déformables ;
  • la figure 7 illustre, de façon similaire à la figure 2, un détail d'une autre variante, où les lames élastiques qui constituent les liaisons flexibles ne sont pas droites, mais seulement symétriques par rapport à un axe de compas passant par le sommet de compas et l'axe de pivotement virtuel, en projection sur le plan de pivotement;
  • la figure 8 est une coupe par le plan AA, passant par l'axe de pivotement, d'un tel oscillateur selon la figure 1 ou 2, montrant la superposition des trois niveaux de liaisons flexibles, s'étendant chacun sur deux niveaux parallèles ;
  • la figure 9 est un diagramme de marche, avec la marche en secondes par jour en ordonnée, en fonction de l'amplitude en degrés en abscisse, la courbe supérieure correspond à la marche dans le plan horizontal, et la courbe inférieure, très proche de la précédente, qui résulte de la superposition des courbes de marche dans un plan vertical, pour quatre orientations différentes dans la gravité X+, X-, Y+, Y- ;
  • la figure 10 est une section qui illustre, de façon similaire à la figure 3, et dans le plan de la liaison flexible supérieure, une autre variante, où l'élément inertiel ne s'étend pas de part et d'autre de l'ensemble des lames élastiques, mais uniquement de la lame élastique supérieure ;
  • la figure 11 est une coupe de la variante de la figure 10, par le même plan, et dans laquelle les trois liaisons flexibles sont visibles ;
  • la figure 12 est une section de la variante de la figure 10, dans le plan de la liaison flexible intermédiaire.
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, in perspective view from above, an oscillator according to the invention, in a particular and nonlimiting embodiment where a single inertial element is suspended from bases fixed to the structure of a movement by three flexible links of similar characteristics, together defining the virtual pivot axis of the inertial element, and superimposed in different levels parallel to a plane of rotation of the inertial element, perpendicular to the virtual pivot axis;
  • the figure 2 represents, schematically, and in top view, the oscillator of the figure 1 ;
  • the figure 3 is a section along a plane AA, passing through the axis of pivoting, of such an oscillator according to the figure 1 or 2 , the sectional plane passing through two elastic blades which together constitute a deformable compass, which comprises one of the flexible links of this oscillator, in a particular variant where the compass arms constituted by these two elastic blades which are in two superposed levels, parallel at the pivot plane, have useful lengths, between their embedding and a virtual vertex of compass at a cusp edge, which are equal. In this variant, the inertial element extends on either side of the set of elastic blades;
  • the figure 4 illustrates, similarly to the figure 3 another variant, in which the useful lengths are different, the projections of blades on the plane of pivoting are identical only on a part, which has the top of the compass, and extends on both sides of the axis virtual pivoting defined by the flexible links;
  • the figure 5 is a block diagram which represents a watch comprising a watch movement, which comprises such a mechanical oscillator, and a plate or a bridge for fixing each said base, which this oscillator comprises;
  • the figure 6 illustrates, similarly to the figure 3 another variant, where the same flexible connection comprises a superposition of six elastic blades, here constituting three deformable compasses;
  • the figure 7 illustrates, similarly to the figure 2 , a detail of another variant, in which the elastic strips that constitute the flexible links are not straight, but only symmetrical with respect to a compass axis passing through the compass apex and the virtual pivot axis, projected onto the pivot plane;
  • the figure 8 is a section through the plane AA, passing through the axis of pivoting, of such an oscillator according to the figure 1 or 2 , showing the superposition of the three levels of flexible links, each extending over two parallel levels;
  • the figure 9 is a gait diagram, with the run in seconds per day on the y-axis, as a function of the amplitude in degrees on the abscissa, the upper curve corresponds to walking in the horizontal plane, and the lower curve, very close to the previous one, which results from the superposition of the curves of march in a vertical plane, for four different orientations in the gravity X +, X-, Y +, Y-;
  • the figure 10 is a section that illustrates, similarly to the figure 3 , and in the plane of the upper flexible link, another variant, wherein the inertial element does not extend on either side of all the elastic blades, but only the upper elastic blade;
  • the figure 11 is a section of the variant of the figure 10 , in the same plane, and in which the three flexible links are visible;
  • the figure 12 is a section of the variant of the figure 10 , in the plane of the intermediate flexible link.

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

La difficulté de la problématique exposée plus haut est de déterminer une géométrie des liaisons flexibles de l'oscillateur, qui permette d'obtenir une solution qui satisfait les deux conditions de marche indépendante de l'amplitude, et de marche indépendante de l'orientation de la montre dans le champ de gravité, tout en ayant une amplitude permettant une exploitation industrielle, typiquement plus de 25°, et de préférence de 30° à 40° environ, ou plus encore.The difficulty of the problem described above is to determine a geometry of the flexible links of the oscillator, which allows to obtain a solution that satisfies the two conditions of operation independent of the amplitude, and of walking independent of the orientation of the oscillator. the watch in the field of gravity, while having an amplitude for industrial exploitation, typically more than 25 °, and preferably from 30 ° to 40 ° or more.

L'invention concerne un oscillateur mécanique 100 d'horlogerie, qui comporte au moins une embase 2 agencée pour être fixée à une platine 3 ou un pont d'un mouvement d'horlogerie 200. Cet oscillateur 100 comporte au moins un élément inertiel 4, qui est agencé pour osciller autour d'un axe de pivotement virtuel D de position fixe par rapport à cette embase 2 si elle est unique, ou par rapport à ces embases 2 quand l'oscillateur 100 en comporte plusieurs, dans un plan de pivotement P perpendiculaire à l'axe de pivotement virtuel D.The invention relates to a mechanical clock oscillator 100, which comprises at least one base 2 arranged to be fixed to a plate 3 or a bridge of a watch movement 200. This oscillator 100 comprises at least one inertial element 4, which is arranged to oscillate about a virtual pivot axis D of fixed position with respect to this base 2 if it is unique, or with respect to these bases 2 when the oscillator 100 has several, in a pivot plane P perpendicular to the virtual pivot axis D.

Chaque élément inertiel 4 est suspendu à au moins une telle embase 2 par plusieurs liaisons flexibles 5 comportant chacune au moins une lame élastique 6. Et ces liaisons flexibles 5 définissent ensemble l'axe de pivotement virtuel D, dans leur agencement géométrique particulier, en projection sur le plan de pivotement P de l'élément inertiel 4.Each inertial element 4 is suspended from at least one such base 2 by a plurality of flexible links 5 each comprising at least one resilient blade 6. And these flexible links 5 together define the virtual pivot axis D, in their particular geometrical arrangement, in projection on the pivot plane P of the inertial element 4.

Tout d'abord, la présente invention s'efforce d'éviter toute configuration où la masse inertielle de l'oscillateur, typiquement un balancier, comporte des bras rigides s'étendant de la serge jusqu'à un diamètre intérieur de support de lames élastiques 6 constitutives des liaisons flexibles 5. A cet effet, l'invention privilégie la configuration où des lames élastiques 6 sont fixées à la serge de l'élément inertiel 4 d'une part, et au bâti (platine ou pont du mouvement) d'autre part au niveau d'une embase fixe 2, par leur extrémité se situant sur le diamètre extérieur, c'est-à-dire le plus distant de l'axe de pivotement virtuel D défini par les liaisons flexibles 5.First, the present invention attempts to avoid any configuration where the inertial mass of the oscillator, typically a pendulum, comprises rigid arms extending from the serge to an inner diameter of elastic blade support. 6 For this purpose, the invention favors the configuration where elastic blades 6 are fixed to the serge of the inertial element 4 on the one hand, and to the frame (platinum or bridge of the movement) of on the other hand, at a fixed base 2, their end being situated on the outside diameter, that is to say the farthest away from the virtual pivoting axis D defined by the flexible links 5.

Ensuite, l'invention privilégie un croisement des lames, bien sûr en projection sur le plan de pivotement P car ces lames élastiques 6 sont agencées dans des niveaux différents et parallèles, au niveau de l'axe de pivotement D. Naturellement cette configuration selon l'invention nécessite un empilement sur plus de niveaux que l'art antérieur, mais peut aussi s'accommoder de dimensions de lames réduites, ce qui altère peu l'encombrement global, qui est de préférence inscrit dans l'encombrement de l'élément inertiel 4 lui-même.Then, the invention favors a crossing of the blades, of course in projection on the pivot plane P because these resilient blades 6 are arranged in different and parallel levels, at the pivot axis D. Naturally this configuration according to the invention The invention requires a stack on more levels than the prior art, but can also accommodate reduced dimensions of blades, which does little alter the overall size, which is preferably inscribed in the bulk of the inertial element 4 himself.

Selon l'invention, au moins une telle liaison flexible 5 comporte au moins un compas déformable 7.According to the invention, at least one such flexible connection 5 comprises at least one deformable compass 7.

Ce terme de compas est choisi pour qualifier de façon simple un composant qui est de préférence monobloc, et qui comporte, de part et d'autre d'un sommet de compas, des branches déformables, qui sont fixées à différents composants de l'oscillateur ; un tel compas déformable n'est pas articulé, il est en fait analogue à une baguette de sourcier. Par souci de simplification, l'invention est illustrée avec une branche unique de chaque côté du sommet de compas, mais il est tout à fait envisageable d'équiper le compas déformable d'une pluralité de branches, au moins d'un côté de son sommet, le nombre de branches de chaque côté du sommet pouvant être différent.This term compass is chosen to describe in a simple way a component which is preferably monobloc, and which comprises, on either side of a compass top, deformable branches, which are attached to different components of the oscillator ; such a deformable compass is not articulated, it is in fact analogous to a dowsing rod. For the sake of simplicity, the invention is illustrated with a single branch on each side of the compass crown, but it is quite possible to equip the deformable compass with a plurality of branches, at least on one side of its body. top, the number of branches on each side of the summit may be different.

Plus particulièrement, ce compas déformable 7 comporte une telle lame élastique 6 formant une première branche 8, qui est agencée pour être, à une première extrémité 82 externe, fixée à une telle embase 2, ou qui solidaire d'une dite embase 2, notamment dans une exécution monobloc. Cette première branche 8 est mobile angulairement, en projection sur le plan de pivotement P, par rapport à une autre lame élastique 6 qui forme une deuxième branche 9 du compas déformable 7. Cette deuxième branche 9 est, à une deuxième extrémité 94 externe, agencée pour être fixée à l'élément inertiel 4, ou bien est solidaire de l'élément inertiel 4. La première branche 8 et la deuxième branche 9 de chaque compas déformable 7 sont jointives au niveau d'une arête de rebroussement 11, laquelle définit un sommet virtuel 10 du compas déformable 7.More particularly, this deformable compass 7 comprises such an elastic blade 6 forming a first leg 8, which is arranged to be, at a first outer end 82, fixed to such a base 2, or which integral with a said base 2, in particular in one-piece execution. This first branch 8 is angularly movable, in projection on the pivot plane P, with respect to another elastic blade 6 which forms a second branch 9 of the deformable compass 7. This second branch 9 is, at a second external end 94, arranged to be fixed to the inertial element 4, or is integral with the inertial element 4. The first branch 8 and the second branch 9 of each deformable compass 7 are joined at a cusp 11, which defines a virtual vertex 10 of the deformable compass 7.

On comprend que les branches de ce compas sont déformées au cours de l'oscillation. Typiquement des branches particulières, qui sont droites dans la position de repos de l'oscillateur prennent une forme sensiblement en arc de cercle de rayon variable pendant l'oscillation, pendant laquelle le sommet 10 du compas déformable 7 est mobile par rapport à l'axe de pivotement virtuel D, dont il est le plus éloigné dans la position de repos de l'oscillateur 100.It is understood that the branches of this compass are deformed during the oscillation. Typically particular branches, which are straight in the rest position of the oscillator take a shape substantially in a circular arc of variable radius during the oscillation, during which the top 10 of the deformable compass 7 is movable relative to the axis virtual pivoting D, which it is farthest in the rest position of the oscillator 100.

Selon l'invention, la projection sur le plan de pivotement P du sommet virtuel 10 est d'un premier côté de l'axe de pivotement virtuel D, opposé à un deuxième côté où se projettent la première extrémité 82 et la deuxième extrémité 94. En somme, le champ géométrique balayé par les lames élastiques 6 lors de l'oscillation coupe l'axe de pivotement virtuel D.According to the invention, the projection on the pivot plane P of the virtual summit 10 is on a first side of the virtual pivot axis D, opposite to a second side where the first end 82 and the second end 94 project. In sum, the geometrical field swept by the elastic blades 6 during the oscillation intersects the virtual pivot axis D.

Plus particulièrement, l'angle formé par la projection, sur le plan de pivotement P, du sommet virtuel 10, de l'axe de pivotement virtuel D, et de la première extrémité 82 et/ou de la deuxième extrémité 94, est compris entre 160° et 200°.More particularly, the angle formed by the projection, on the pivot plane P, of the virtual vertex 10, the virtual pivot axis D, and the first end 82 and / or the second end 94 is between 160 ° and 200 °.

Plus particulièrement, tel que visible sur les exécutions des figures 1 à 3, les projections sur le plan de pivotement P de la première extrémité 82 et de la deuxième extrémité 94 sont confondues.More particularly, as visible on the executions of Figures 1 to 3 the projections on the pivot plane P of the first end 82 and the second end 94 are combined.

Plus particulièrement encore, dans un état de repos non contraint de l'oscillateur100, la première branche 8 et la deuxième branche 9 sont symétriques, en projection sur le plan de pivotement P, par rapport à une droite formant un axe de compas D7 joignant l'axe de pivotement virtuel D et la projection du sommet virtuel 10. Cette projection du sommet virtuel 10 est située d'un premier côté de l'axe de pivotement virtuel D, opposé à un deuxième côté où se projettent la première extrémité 82 et la deuxième extrémité 94. Chaque compas déformable 7 forme ainsi, lors du fonctionnement de l'oscillateur 100, un vé, dont les branches sont attachées extérieurement à l'embase et à l'élément inertiel, et dont la pointe (le sommet) est libre. De préférence, dans la position de repos de l'oscillateur, le vé est fermé, et la première branche 8 et la deuxième branche 9 sont superposées.More particularly, in an unstressed rest state of the oscillator 100, the first branch 8 and the second branch 9 are symmetrical, in projection on the pivot plane P, with respect to a straight line forming a compass axis D7 joining the virtual pivot axis D and the projection of the virtual vertex 10. This projection of the virtual vertex 10 is located on a first side of the virtual pivot axis D, opposite to a second side where the first end 82 and the second end project. second end 94. Each deformable compass 7 thus forms, during the operation of the oscillator 100, a vee whose branches are attached externally to the base and the inertial element, and whose tip (the vertex) is free . Preferably, in the rest position of the oscillator, the vee is closed, and the first leg 8 and the second leg 9 are superimposed.

De préférence, le ratio R/L entre d'une part l'excentricité R du sommet 10 par rapport à l'axe de pivotement virtuel D, en projection sur le plan de pivotement P, et d'autre part la plus courte longueur L entre le sommet 10 et la première extrémité 82 ou la deuxième extrémité 94, en projection sur le plan de pivotement P, est compris entre 0.12 et 0.18, ou entre 0.47 et 0.53. Plus particulièrement, les longueurs L entre le sommet 10 et la première extrémité 82 d'une part, et la deuxième extrémité 94 d'autre part, en projection sur le plan de pivotement P, sont égales, tel que visible sur la figure 3.Preferably, the R / L ratio between, on the one hand, the eccentricity R of the vertex 10 with respect to the virtual pivot axis D, in projection on the pivot plane P, and on the other hand, the shortest length L between the vertex 10 and the first end 82 or the second end 94, in projection on the pivot plane P, is between 0.12 and 0.18, or between 0.47 and 0.53. More particularly, the lengths L between the vertex 10 and the first end 82 on the one hand, and the second end 94 on the other hand, in projection on the pivot plane P, are equal, as visible on FIG. figure 3 .

De façon particulière, tous les axes de compas D7 de tous compas déformables 7, que comporte une même liaison flexible 5, sont confondus en projection sur le plan de pivotement P.In particular, all the compass axes D7 of all deformable compasses 7, which comprises the same flexible connection 5, coincide in projection on the pivot plane P.

De façon particulière, tous les axes de compas D7 de tous les compas déformables 7 que comportent les liaisons flexibles 5 se croisent, en projection sur le plan de pivotement P, sur l'axe de pivotement virtuel D.In particular, all the compass axes D7 of all the deformable compasses 7 that comprise the flexible links 5 intersect, in projection on the pivot plane P, on the virtual pivot axis D.

Plus particulièrement encore, toutes les liaisons flexibles 5 sont identiques.Even more particularly, all the flexible links 5 are identical.

De façon particulière, tous les axes de compas D7 de tous les compas déformables 7, que comportent les liaisons flexibles 5, sont uniformément répartis angulairement autour de l'axe de pivotement virtuel D.In particular, all the compass axes D7 of all the deformable compasses 7, which comprise the flexible links 5, are uniformly distributed angularly around the virtual pivot axis D.

Dans une réalisation particulière, au moins un compas déformable 7 comporte des lames élastiques 6 droites. Plus particulièrement, toutes les lames élastiques 6 sont droites.In a particular embodiment, at least one deformable compass 7 comprises 6 straight elastic blades. More particularly, all the elastic blades 6 are straight.

De préférence, mais non limitativement, au moins un compas déformable 7 comporte la première branche 8 dans un premier niveau P1 parallèle au plan de pivotement P, et la deuxième branche 9 dans un deuxième niveau P2 parallèle au plan de pivotement P et distinct du premier niveau P1. Il est possible d'agencer cet oscillateur avec des lames gauches, toutefois la complexité et l'encombrement sont augmentés, sans qu'un avantage soit clairement visible. Plus particulièrement, chaque compas déformable 7 comporte la première branche 8 dans un premier niveau P1 parallèle au plan de pivotement P, et ladite deuxième branche 9 dans un deuxième niveau P2 parallèle au plan de pivotement P et distinct du premier niveau P1.Preferably, but not exclusively, at least one deformable compass 7 comprises the first branch 8 in a first level P1 parallel to the pivot plane P, and the second branch 9 in a second level P2 parallel to the pivot plane P and distinct from the first P1 level. It is possible to arrange this oscillator with left blades, however the complexity and bulk are increased, without a benefit is clearly visible. More particularly, each deformable compass 7 comprises the first branch 8 in a first level P1 parallel to the pivot plane P, and said second branch 9 in a second level P2 parallel to the pivot plane P and distinct from the first level P1.

De façon avantageuse, au moins un compas déformable 7 comporte une première branche 8 et une deuxième branche 9 dont les projections sur le plan de pivotement P, dans l'état de repos non contraint de l'oscillateur100, sont superposées l'une à l'autre. Plus particulièrement, les projections de la première branche 8 et de la deuxième branche 9, sur le plan de pivotement P, dans l'état de repos non contraint de l'oscillateur 100, sont identiques l'une à l'autre.Advantageously, at least one deformable compass 7 comprises a first branch 8 and a second branch 9 whose projections on the pivot plane P, in the unstressed rest state of the oscillator 100, are superimposed on each other. More particularly, the projections of the first branch 8 and the second branch 9, on the pivot plane P, in the unstressed state of rest of the oscillator 100 are identical to each other.

De façon particulière, et tel que visible sur les figures 3 et 8, au moins un élément inertiel 4 s'étend, selon la direction de l'axe de pivotement virtuel D, de part et d'autre de l'ensemble des liaisons flexibles 5 par lesquelles il est suspendu à l'embase 2 ou aux embases 2, entre un plan supérieur PS et un plan inférieur PI. Plus particulièrement, chaque élément inertiel 4 s'étend, selon la direction de l'axe de pivotement virtuel D, de part et d'autre de l'ensemble des liaisons flexibles 5 par lesquelles il est suspendu à l'embase 2 ou aux embases 2.In a particular way, and as visible on the figures 3 and 8 at least one inertial element 4 extends, in the direction of the virtual pivot axis D, on either side of the set of flexible links 5 by which it is suspended from the base 2 or the bases 2, between an upper plane PS and a lower plane PI. More particularly, each inertial element 4 extends, in the direction of the virtual pivot axis D, on either side of the set of flexible connections 5 by which it is suspended from the base 2 or the bases 2.

Avantageusement au moins un élément inertiel 4 est dépourvu de palier axial, et est dépourvu de bras radial, par rapport à l'axe de pivotement virtuel D, autre que les liaisons flexibles 5 par lesquelles il est suspendu à l'embase 2 ou aux embases 2. Plus particulièrement, chaque élément inertiel 4 est dépourvu de palier axial, et est dépourvu de bras radial, par rapport à l'axe de pivotement virtuel D, autre que les liaisons flexibles 5 par lesquelles il est suspendu à l'embase 2 ou aux embases 2.Advantageously, at least one inertial element 4 has no axial bearing, and is devoid of a radial arm, with respect to the virtual pivot axis D, other than the flexible links 5 by which it is suspended from the base 2 or the bases. 2. More particularly, each inertial element 4 has no axial bearing, and is devoid of a radial arm, with respect to the virtual pivot axis D, other than the flexible links 5 by which it is suspended from the base 2 or at bases 2.

Dans une réalisation particulière, au moins un compas déformable 7 comporte au moins une masselotte intermédiaire, plus rigide que la première branche 8 et la deuxième branche 9, sur la première branche 8 et/ou sur la deuxième branche 9 et/ou sur l'arête de rebroussement 11. Toutefois un masselotage au niveau de l'arête de rebroussement 11 semble superflu, la variante illustrée par les figures se borne à assurer la jonction mécanique entre la première branche 8 et la deuxième branche 9In a particular embodiment, at least one deformable compass 7 comprises at least one intermediate weight, more rigid than the first leg 8 and the second leg 9, on the first leg 8 and / or on the second leg 9 and / or on the Cursing edge 11. However, a masselotage at the level of the cusp 11 seems superfluous, the variant illustrated by the figures is limited to ensure the mechanical connection between the first branch 8 and the second branch 9

Dans la réalisation avantageuse des figures 1, 2, et 9, l'oscillateur 100 comporte, sur un même niveau selon la direction de l'axe de pivotement virtuel D, trois liaisons flexibles 5 identiques et à 120° l'une de l'autre. Dans cette configuration le ratio R/L entre d'une part l'excentricité R du sommet 10 par rapport à l'axe de pivotement virtuel D, en projection sur le plan de pivotement P, et d'autre part la plus courte longueur L entre le sommet 10 et la première extrémité 82 ou la deuxième extrémité 94, en projection sur le plan de pivotement P, est compris entre 0.12 et 0.18, ou entre 0.47 et 0.53. Les lames élastiques 6 sont en silicium et/ou dioxyde de silicium, et ont chacune une longueur de 1.00 mm, une hauteur de 0.15 mm, une épaisseur de 25.8 micromètres et une valeur λ=R/L de -0.496.In the advantageous realization of Figures 1, 2 , and 9 the oscillator 100 comprises, on the same level in the direction of the virtual pivot axis D, three identical flexible links 5 and 120 ° from each other. In this configuration, the R / L ratio between, on the one hand, the eccentricity R of the vertex 10 with respect to the virtual pivot axis D, in projection on the pivot plane P, and on the other hand, the shortest length L between the vertex 10 and the first end 82 or the second end 94, in projection on the pivot plane P, is between 0.12 and 0.18, or between 0.47 and 0.53. The resilient blades 6 are made of silicon and / or silicon dioxide, each having a length of 1.00 mm, a height of 0.15 mm, a thickness of 25.8 micrometers and a value λ = R / L of -0.496.

Les figures illustrent différentes variantes comportant trois liaisons flexibles ainsi superposées, disposées à 120° en projection sur le plan P : compas supérieur 7A avec première branche supérieure 8A et deuxième branche supérieure 9A, compas intermédiaire 7B avec première branche intermédiaire 8B et deuxième branche intermédiaire 9B, compas inférieur 7C avec première branche inférieure 8C et deuxième branche inférieure 9C.The figures illustrate various variants comprising three flexible links thus superimposed, arranged at 120 ° in projection on the plane P: upper compass 7A with first upper branch 8A and second upper branch 9A, intermediate compass 7B with first intermediate branch 8B and second intermediate branch 9B lower compass 7C with first lower leg 8C and second lower leg 9C.

De façon particulière, l'oscillateur 100 comporte, sur un même niveau selon la direction de l'axe de pivotement virtuel D, un nombre impair de liaisons flexibles 5, de préférence identiques, pour faciliter l'auto-démarrage de l'oscillateur.In particular, the oscillator 100 comprises, on the same level in the direction of the virtual pivot axis D, an odd number of flexible connections 5, preferably identical, to facilitate the self-starting of the oscillator.

De façon générale, les dimensions convenables pour de telles lames élastiques 6 pour des oscillateurs de montres sont : longueur de 0.50 à 4.00 mm, une hauteur de 0.10 à 0.50 mm, une épaisseur de 10 à 40 micromètres, et R/L compris entre 0.10 et 0.20 ou entre 0.45 et 0.55, et plus particulièrement entre 0.12 et 0.18, ou entre 0.47 et 0.53.In general, the dimensions suitable for such elastic blades 6 for oscillators of watches are: length from 0.50 to 4.00 mm, a height of 0.10 to 0.50 mm, a thickness of 10 to 40 micrometers, and R / L of between 0.10 and 0.20 or between 0.45 and 0.55, and more particularly between 0.12 and 0.18, or between 0.47 and 0.53.

La figure 4 illustre un cas particulier où les longueurs utiles des lames élastiques 6 sont différentes, les projections de lames sur le plan de pivotement P ne sont identiques que sur une partie, qui comporte le sommet 10 du compas, et s'étend de part et d'autre de l'axe de pivotement virtuel D défini par les liaisons flexibles 5. On peut encore imaginer des branches non symétriques, par exemple d'épaisseurs différentes, de formes différentes, ou autre.The figure 4 illustrates a particular case where the useful lengths of the elastic blades 6 are different, the blade projections on the pivot plane P are identical only on a part, which has the vertex 10 of the compass, and extends from both sides other of the virtual pivot axis D defined by the flexible links 5. It is still possible to imagine non-symmetrical branches, for example of different thicknesses, of different shapes, or other.

La figure 9 illustre une autre variante où les lames élastiques qui constituent les liaisons flexibles ne sont pas droites, mais seulement symétriques par rapport à un axe de compas passant par le sommet de compas et l'axe de pivotement virtuel, en projection sur le plan de pivotement. Il n'y a pas de limitation de forme, les lames pourraient être en clé de sol, ou autre forme permettant de développer leur longueur, telle qu'un spiral, ou autre.The figure 9 illustrates another variant where the elastic blades that constitute the flexible links are not straight, but only symmetrical with respect to a compass axis passing through the compass apex and the virtual pivot axis, in projection on the plane of pivoting. There is no limitation of shape, the blades could be in ground key, or other shape to develop their length, such as a spiral, or other.

Chaque dite liaison flexible 5 est réalisable en silicium et/ou dioxyde de silicium, ou en matériau au moins partiellement amorphe, ou en DLC, ou en quartz, ou en matériaux similaires.Each said flexible connection 5 is feasible in silicon and / or silicon dioxide, or at least partially amorphous material, or DLC, or quartz, or similar materials.

L'invention concerne encore un mouvement d'horlogerie 200, comportant au moins un tel oscillateur mécanique 100, et comportant une platine 3 ou un pont pour la fixation de chaque embase 2, que comporte chaque oscillateur 100.The invention also relates to a watch movement 200, comprising at least one such mechanical oscillator 100, and comprising a plate 3 or a bridge for fixing each base 2, which each oscillator 100 comprises.

L'invention concerne encore une montre 300 comportant au moins un tel mouvement d'horlogerie 200, et/ou comportant au moins un tel oscillateur mécanique 100.The invention also relates to a watch 300 comprising at least one watch movement 200, and / or comprising at least one such mechanical oscillator 100.

On peut bien sûr varier:

  • le nombre de liaisons flexibles ;
  • le nombre de paires de lames élastiques par liaison flexible ;
  • l'angle entre les lames élastiques des liaisons flexibles,
  • le rapport R/L ;
  • le masselotage par ajout d'au moins une partie rigide sur les lames élastiques.
We can of course vary:
  • the number of flexible links;
  • the number of pairs of elastic blades by flexible connection;
  • the angle between the elastic blades of the flexible connections,
  • the ratio R / L;
  • the masselotage by adding at least one rigid part on the elastic blades.

Claims (29)

Oscillateur mécanique (100) d'horlogerie, comportant au moins une embase (2) agencée pour être fixée à une platine (3) ou un pont d'un mouvement d'horlogerie (200), et au moins un élément inertiel (4) agencé pour osciller autour d'un axe de pivotement virtuel (D) de position fixe par rapport à ladite au moins une embase (2) ou de position fixe par rapport auxdites embases (2) quand ledit oscillateur (100) en comporte plusieurs, dans un plan de pivotement (P) perpendiculaire audit axe de pivotement virtuel (D), chaque dit élément inertiel (4) étant suspendu à au moins une dite embase (2) par plusieurs liaisons flexibles (5) comportant chacune au moins une lame élastique (6) et lesdites liaisons flexibles (5) définissant ensemble ledit axe de pivotement virtuel (D), caractérisé en ce qu'au moins une dite liaison flexible (5) comporte au moins un compas déformable (7) comportant une dite lame élastique (6) formant une première branche (8) agencée pour être, à une première extrémité (82), fixée à une dite embase (2) ou solidaire d'une dite embase (2), mobile angulairement, en projection sur ledit plan de pivotement (P), par rapport à une autre dite lame élastique (6) formant une deuxième branche (9) dudit compas déformable (7) qui est, à une deuxième extrémité (94), agencée pour être fixée audit élément inertiel (4), ou solidaire dudit élément inertiel (4), ladite première branche (8) et ladite deuxième branche (9) étant jointives au niveau d'une arête de rebroussement (11) définissant un sommet virtuel (10) dudit compas déformable (7), et caractérisé en ce que, dans un état de repos non contraint dudit oscillateur(100), la projection sur ledit plan de pivotement (P) dudit sommet virtuel (10) est d'un premier côté dudit axe de pivotement virtuel (D), opposé à un deuxième côté où se projettent ladite première extrémité (82) et ladite deuxième extrémité (94).Mechanical clock oscillator (100), comprising at least one base (2) arranged to be fixed to a plate (3) or a bridge of a clockwork movement (200), and at least one inertial element (4) arranged to oscillate about a virtual pivot axis (D) of fixed position with respect to said at least one base (2) or of fixed position relative to said bases (2) when said oscillator (100) has several, in a pivoting plane (P) perpendicular to said virtual pivot axis (D), each said inertial element (4) being suspended from at least one said base (2) by a plurality of flexible links (5) each comprising at least one elastic blade ( 6) and said flexible links (5) together defining said virtual pivot axis (D), characterized in that at least one said flexible link (5) comprises at least one deformable compass (7) comprising a said elastic blade (6). ) forming a first branch (8) arranged to be, at a distance end end (82), fixed to a said base (2) or integral with a said base (2), angularly movable, in projection on said pivot plane (P), with respect to another said elastic blade (6) forming a second branch (9) of said deformable compass (7) which is, at a second end (94), arranged to be fixed to said inertial element (4), or integral with said inertial element (4), said first arm (8) and said second leg (9) being contiguous at a cusp edge (11) defining a virtual vertex (10) of said deformable compass (7), and characterized in that , in an unstressed state of said oscillator ( 100), the projection on said pivot plane (P) of said virtual vertex (10) is on a first side of said virtual pivot axis (D) opposite a second side projecting said first end (82) and said second end (94). Oscillateur mécanique (100) selon la revendication 1, caractérisé en ce que, dans ledit état de repos non contraint dudit oscillateur(100), l'angle formé par la projection, sur ledit plan de pivotement (P), dudit sommet virtuel (10), dudit axe de pivotement virtuel (D), et de ladite première extrémité (82) et/ou de ladite deuxième extrémité (94), est compris entre 160° et 200°.Mechanical oscillator (100) according to claim 1, characterized in that , in said unconstrained state of rest of said oscillator (100), the angle formed by the projection, on said plane of rotation (P), of said virtual vertex (10) ), said virtual pivot axis (D), and said first end (82) and / or said second end (94), is between 160 ° and 200 °. Oscillateur mécanique (100) selon la revendication 1 ou 2, caractérisé en ce que, dans ledit état de repos non contraint dudit oscillateur(100), les projections sur ledit plan de pivotement (P) de ladite première extrémité (82) et de ladite deuxième extrémité (94) sont confondues.Mechanical oscillator (100) according to claim 1 or 2, characterized in that , in said unstressed state of said oscillator (100), the projections on said pivot plane (P) of said first end (82) and said second end (94) are merged. Oscillateur mécanique (100) selon l'une des revendications 1 à 3, caractérisé en ce que ladite première branche (8) et ladite deuxième branche (9) sont symétriques, en projection sur ledit plan de pivotement (P), par rapport à une droite formant un axe de compas (D7) joignant ledit axe de pivotement virtuel (D) et la projection dudit sommet virtuel (10).Mechanical oscillator (100) according to one of claims 1 to 3, characterized in that said first branch (8) and said second branch (9) are symmetrical, in projection on said pivot plane (P), with respect to a line forming a compass axis (D7) joining said virtual pivot axis (D) and the projection of said virtual vertex (10). Oscillateur mécanique (100) selon l'une des revendications 1 à 4, caractérisé en ce que le ratio R/L entre d'une part l'excentricité R dudit sommet (10) par rapport audit axe de pivotement virtuel (D), en projection sur ledit plan de pivotement (P), et d'autre part la plus courte longueur L entre ledit sommet (10) et ladite première extrémité (82) ou ladite deuxième extrémité (94), en projection sur ledit plan de pivotement (P), est compris entre 0.12 et 0.18, ou entre 0.47 et 0.53.Mechanical oscillator (100) according to one of claims 1 to 4, characterized in that the R / L ratio between firstly the eccentricity R of said vertex (10) with respect to said virtual pivot axis (D), in projection on said pivot plane (P), and secondly the shortest length L between said vertex (10) and said first end (82) or said second end (94), in projection on said pivot plane (P). ), is between 0.12 and 0.18, or between 0.47 and 0.53. Oscillateur mécanique (100) selon la revendication 4 et selon l'une quelconque des revendications 1 à 5, caractérisé en ce que tous les dits axes de compas (D7) de tous lesdits compas déformables (7), que comporte une même liaison flexible (5), sont confondus en projection sur ledit plan de pivotement (P).Mechanical oscillator (100) according to Claim 4 and according to any one of Claims 1 to 5, characterized in that all the said compass axes (D7) of all the said deformable compasses (7), which comprise the same flexible connection ( 5), are merged in projection on said pivot plane (P). Oscillateur mécanique (100) selon la revendication 4 et selon l'une quelconque des revendications 1 à 6, caractérisé en ce que tous lesdits axes de compas (D7) de tous lesdits compas déformables (7) que comportent lesdites liaisons flexibles (5) se croisent, en projection sur ledit plan de pivotement (P), sur ledit axe de pivotement virtuel (D).Mechanical oscillator (100) according to claim 4 and according to any one of claims 1 to 6, characterized in that all said compass axes (D7) of all said deformable compasses (7) that comprise said flexible links (5) are intersect, in projection on said pivot plane (P), on said virtual pivot axis (D). Oscillateur mécanique (100) selon l'une des revendications 1 à 7, caractérisé en ce que toutes lesdites liaisons flexibles (5) sont identiques.Mechanical oscillator (100) according to one of claims 1 to 7, characterized in that all said flexible connections (5) are identical. Oscillateur mécanique (100) selon la revendication 4 et selon l'une quelconque des revendications 1 à 8, caractérisé en ce que tous lesdits axes de compas (D7) de tous lesdits compas déformables (7) que comportent lesdites liaisons flexibles (5) sont uniformément répartis angulairement autour dudit axe de pivotement virtuel (D).Mechanical oscillator (100) according to claim 4 and according to any one of claims 1 to 8, characterized in that all said compass axes (D7) of all said deformable compasses (7) that comprise said flexible links (5) are uniformly distributed angularly about said virtual pivot axis (D). Oscillateur mécanique (100) selon l'une quelconque des revendications 1 à 9, caractérisé en ce qu'au moins un dit compas déformable (7) comporte des dites lames élastiques (6) qui sont droites dans ledit état de repos non contraint dudit oscillateur(100).Mechanical oscillator (100) according to any one of claims 1 to 9, characterized in that at least one said deformable compass (7) comprises said elastic blades (6) which are straight in said unstressed state of said oscillator (100). Oscillateur mécanique (100) selon la revendication 10, caractérisé en ce que toutes lesdites lames élastiques (6) sont droites.Mechanical oscillator (100) according to claim 10, characterized in that all said elastic blades (6) are straight. Oscillateur mécanique (100) selon l'une des revendications 1 à 11, caractérisé en ce qu'au moins un dit compas déformable (7) comporte ladite première branche (8) dans un premier niveau (P1) parallèle audit plan de pivotement (P), et ladite deuxième branche (9) dans un deuxième niveau (P2) parallèle audit plan de pivotement (P) et distinct dudit premier niveau (P1).Mechanical oscillator (100) according to one of claims 1 to 11, characterized in that at least one said deformable compass (7) comprises said first branch (8) in a first level (P1) parallel to said pivot plane (P ), and said second branch (9) in a second level (P2) parallel to said pivot plane (P) and distinct from said first level (P1). Oscillateur mécanique (100) selon la revendication 12, caractérisé en ce que chaque dit compas déformable (7) comporte ladite première branche (8) dans un premier niveau (P1) parallèle audit plan de pivotement (P), et ladite deuxième branche (9) dans un deuxième niveau (P2) parallèle audit plan de pivotement (P) et distinct dudit premier niveau (P1).Mechanical oscillator (100) according to claim 12, characterized in that each said deformable compass (7) comprises said first branch (8) in a first level (P1) parallel to said pivot plane (P), and said second branch (9) ) in a second level (P2) parallel to said pivot plane (P) and distinct from said first level (P1). Oscillateur mécanique (100) selon l'une des revendications 1 à 13, caractérisé en ce qu'au moins un dit compas déformable (7) comporte ladite première branche (8) et ladite deuxième branche (9) dont les projections sur ledit plan de pivotement (P), dans ledit état de repos non contraint dudit oscillateur(100), sont superposées l'une à l'autre.Mechanical oscillator (100) according to one of claims 1 to 13, characterized in that at least one said deformable compass (7) comprises said first branch (8) and said second branch (9) whose projections on said plane of pivoting (P) in said unstressed state of said oscillator (100) is superimposed on each other. Oscillateur mécanique (100) selon la revendication 14, caractérisé en ce que lesdites projections de ladite première branche (8) et de ladite deuxième branche (9) de chaque compas déformable (7), sur ledit plan de pivotement (P), dans ledit état de repos non contraint dudit oscillateur(100), sont identiques l'une à l'autre.Mechanical oscillator (100) according to claim 14, characterized in that said projections of said first branch (8) and said second branch (9) of each deformable compass (7), on said pivot plane (P), in said unstressed state of said oscillator (100), are identical to each other. Oscillateur mécanique (100) selon la revendication 14 ou 15, caractérisé en ce que chaque dit compas déformable (7) comporte ladite première branche (8) et ladite deuxième branche (9) dont les projections sur ledit plan de pivotement (P), dans ledit état de repos non contraint dudit oscillateur(100), sont superposées ou identiques l'une à l'autre.Mechanical oscillator (100) according to claim 14 or 15, characterized in that each said deformable compass (7) comprises said first branch (8) and said second branch (9) whose projections on said pivot plane (P), in said unconstrained state of rest of said oscillator (100) is superimposed or identical to each other. Oscillateur mécanique (100) selon l'une des revendications 1 à 16, caractérisé en ce qu'au moins un dit compas déformable (7) comporte ladite première branche (8) qui est plus rigide que ladite deuxième branche (9), et moins rigide que ledit élément inertiel (4) fixé à sa deuxième extrémité (74).Mechanical oscillator (100) according to one of claims 1 to 16, characterized in that at least one said deformable compass (7) comprises said first branch (8) which is more rigid than said second branch (9), and less rigid that said inertial element (4) attached to its second end (74). Oscillateur mécanique (100) selon la revendication 17, caractérisé en ce que chaque dit compas déformable (7) comporte ladite première branche (8) qui est plus rigide que ladite deuxième branche (9), et moins rigide que ledit élément inertiel (4) fixé à sa deuxième extrémité (74).Mechanical oscillator (100) according to claim 17, characterized in that each said deformable compass (7) comprises said first branch (8) which is more rigid than said second branch (9), and less rigid than said inertial element (4) attached to its second end (74). Oscillateur mécanique (100) selon l'une des revendications 1 à 16, caractérisé en ce qu'au moins un dit compas déformable (7) comporte ladite première branche (8) qui est aussi rigide que ladite deuxième branche (9) et présente les mêmes caractéristiques élastiques, et qui est moins rigide que ledit élément inertiel (4) fixé à sa deuxième extrémité (74).Mechanical oscillator (100) according to one of claims 1 to 16, characterized in that at least one said deformable compass (7) comprises said first branch (8) which is as rigid as said second branch (9) and presents the same elastic characteristics, and which is less rigid than said inertial element (4) attached to its second end (74). Oscillateur mécanique (100) selon la revendication 19, caractérisé en ce que chaque dit compas déformable (7) comporte ladite première branche (8) qui est aussi rigide que ladite deuxième branche (9) et présente les mêmes caractéristiques élastiques, et qui est moins rigide que ledit élément inertiel (4) fixé à sa deuxième extrémité (74).Mechanical oscillator (100) according to claim 19, characterized in that each said deformable compass (7) comprises said first branch (8) which is as rigid as said second branch (9) and has the same characteristics resilient, and which is less rigid than said inertial element (4) attached to its second end (74). Oscillateur mécanique (100) selon l'une des revendications 1 à 20, caractérisé en ce qu'au moins un dit élément inertiel (4) s'étend, selon la direction dudit axe de pivotement virtuel (D), de part et d'autre de l'ensemble desdites liaisons flexibles (5) par lesquelles il est suspendu à ladite embase (2) ou auxdites embases (2).Mechanical oscillator (100) according to one of claims 1 to 20, characterized in that at least one said inertial element (4) extends, in the direction of said virtual pivot axis (D), on both sides. other of all of said flexible links (5) by which it is suspended from said base (2) or said bases (2). Oscillateur mécanique (100) selon l'une des revendications 1 à 21, caractérisé en ce que chaque dit élément inertiel (4) s'étend, selon la direction dudit axe de pivotement virtuel (D), de part et d'autre de l'ensemble desdites liaisons flexibles (5) par lesquelles il est suspendu à ladite embase (2) ou auxdites embases (2).Mechanical oscillator (100) according to one of claims 1 to 21, characterized in that each said inertial element (4) extends, in the direction of said virtual pivot axis (D), on either side of the all of said flexible links (5) by which it is suspended from said base (2) or said bases (2). Oscillateur mécanique (100) selon l'une des revendications 1 à 22, caractérisé en ce qu'au moins un dit élément inertiel (4) est dépourvu de palier axial, et est dépourvu de bras radial, par rapport audit axe de pivotement virtuel (D), autre que lesdites liaisons flexibles (5) par lesquelles il est suspendu à ladite embase (2) ou auxdites embases (2).Mechanical oscillator (100) according to one of Claims 1 to 22, characterized in that at least one said inertial element (4) has no axial bearing and does not have a radial arm with respect to said virtual pivot axis ( D), other than said flexible links (5) by which it is suspended from said base (2) or said bases (2). Oscillateur mécanique (100) selon l'une des revendications 1 à 23, caractérisé en ce que chaque dit élément inertiel (4) est dépourvu de palier axial, et est dépourvu de bras radial, par rapport audit axe de pivotement virtuel (D), autre que lesdites liaisons flexibles (5) par lesquelles il est suspendu à ladite embase (2) ou auxdites embases (2).Mechanical oscillator (100) according to one of claims 1 to 23, characterized in that each said inertial element (4) has no axial bearing, and does not have a radial arm, with respect to said virtual pivot axis (D), other than said flexible links (5) by which it is suspended from said base (2) or said bases (2). Oscillateur mécanique (100) selon l'une des revendications 1 à 24, caractérisé en ce qu'au moins un dit compas déformable (7) comporte au moins une masselotte intermédiaire, plus rigide que ladite première branche (8) et ladite deuxième branche (9), sur ladite première branche (8) et/ou sur ladite deuxième branche (9) et/ou sur ladite arête de rebroussement (11).Mechanical oscillator (100) according to one of claims 1 to 24, characterized in that at least one said deformable compass (7) comprises at least one intermediate flyweight, more rigid than said first branch (8) and said second branch ( 9), on said first branch (8) and / or on said second branch (9) and / or on said cusp (11). Oscillateur mécanique (100) selon l'une des revendications 1 à 25, caractérisé en ce que ledit oscillateur (100) comporte, sur un même niveau selon la direction dudit axe de pivotement virtuel (D), trois dites liaisons flexibles (5) identiques et à 120° l'une de l'autre.Mechanical oscillator (100) according to one of claims 1 to 25, characterized in that said oscillator (100) comprises, on the same level in the direction of said virtual pivot axis (D), said three identical flexible links (5). and at 120 ° from each other. Oscillateur mécanique (100) selon l'une des revendications 1 à 26, caractérisé en ce que chaque dite liaison flexible (5) est en silicium et/ou dioxyde de silicium, ou en matériau au moins partiellement amorphe, ou en DLC, ou en quartz.Mechanical oscillator (100) according to one of claims 1 to 26, characterized in that each said flexible connection (5) is silicon and / or silicon dioxide, or at least partially amorphous material, or DLC, or quartz. Mouvement d'horlogerie (200), comportant au moins un oscillateur mécanique (100) selon l'une des revendications 1 à 26, et comportant une platine (3) ou un pont pour la fixation de chaque dite embase (2), que comporte chaque dit oscillateur (100).Clockwork movement (200), comprising at least one mechanical oscillator (100) according to one of claims 1 to 26, and comprising a plate (3) or a bridge for the fixing of each said base (2), that includes each said oscillator (100). Montre (300) comportant au moins un mouvement d'horlogerie (200) selon la revendication 27, et/ou comportant au moins un oscillateur mécanique (100) selon l'une des revendications 1 à 26.Watch (300) comprising at least one watch movement (200) according to claim 27, and / or comprising at least one mechanical oscillator (100) according to one of claims 1 to 26.
EP18174332.9A 2018-05-25 2018-05-25 Timepiece mechanical oscillator that is isochronous in any position Active EP3572885B1 (en)

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US16/386,308 US10838364B2 (en) 2018-05-25 2019-04-17 Mechanical timepiece oscillator which is isochronous in all positions
JP2019091225A JP6738461B2 (en) 2018-05-25 2019-05-14 Mechanical timepiece oscillator that is isochronous in all positions
CN201910438641.8A CN110531604B (en) 2018-05-25 2019-05-24 Mechanical timepiece oscillator, timepiece movement, and watch

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EP3572885B1 (en) 2022-04-20

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