EP3561604B1 - Timepiece regulator mechanism with hinged resonators - Google Patents

Timepiece regulator mechanism with hinged resonators Download PDF

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Publication number
EP3561604B1
EP3561604B1 EP19159421.7A EP19159421A EP3561604B1 EP 3561604 B1 EP3561604 B1 EP 3561604B1 EP 19159421 A EP19159421 A EP 19159421A EP 3561604 B1 EP3561604 B1 EP 3561604B1
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EP
European Patent Office
Prior art keywords
regulating mechanism
timepiece
inertial
pivot
resonators
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EP19159421.7A
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German (de)
French (fr)
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EP3561604A1 (en
Inventor
Jean-Jacques Born
Pascal Winkler
Gianni Di Domenico
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Swatch Group Research and Development SA
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Swatch Group Research and Development SA
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    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B15/00Escapements
    • G04B15/06Free escapements
    • G04B15/08Lever escapements
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00Mechanisms for stabilising frequency
    • G04B17/04Oscillators acting by spring tension
    • G04B17/045Oscillators acting by spring tension with oscillating blade springs
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B15/00Escapements
    • G04B15/06Free escapements
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B15/00Escapements
    • G04B15/14Component parts or constructional details, e.g. construction of the lever or the escape wheel
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00Mechanisms for stabilising frequency
    • G04B17/30Rotating governors, e.g. centrifugal governors, fan governors
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00Mechanisms for stabilising frequency
    • G04B17/32Component parts or constructional details, e.g. collet, stud, virole or piton

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Micromachines (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Description

Domaine de l'inventionField of the invention

L'invention concerne un mécanisme régulateur d'horlogerie selon la revendication 1.The invention relates to a clock regulating mechanism according to claim 1.

L'invention concerne encore un mouvement d'horlogerie comportant au moins un tel mécanisme régulateur.The invention also relates to a timepiece movement comprising at least one such regulating mechanism.

L'invention concerne encore une montre comportant au moins un tel mouvement, et/ou comportant au moins un tel mécanisme régulateur.The invention also relates to a watch comprising at least one such movement, and / or comprising at least one such regulating mechanism.

L'invention concerne le domaine des mécanismes de régulation pour l'horlogerie mécanique.The invention relates to the field of regulation mechanisms for mechanical watchmaking.

Arrière-plan de l'inventionBackground of the invention

La technologie des oscillateurs et résonateurs d'horlogerie a beaucoup évolué avec l'apparition des techniques de réalisation de composants en silicium ou matériaux de caractéristiques similaires, qui ont permis l'avènement de guidages flexibles, en particulier à lames, définissant des pivots virtuels, et permettant de s'affranchir des pivots traditionnels, consommateurs d'énergie, sujets à l'usure, et nécessitant des lubrifications adéquates.The technology of clockwork oscillators and resonators has evolved a great deal with the appearance of techniques for producing components in silicon or materials with similar characteristics, which have enabled the advent of flexible guides, in particular with blades, defining virtual pivots, and allowing to overcome the traditional pivots, energy consumers, subject to wear, and requiring adequate lubrication.

De nombreux paramètres restent néanmoins à améliorer : les faibles amplitudes d'oscillation, la transmission d'efforts importants, la sensibilité aux chocs, et, de façon générale la sensibilité aux perturbations du porté, en particulier en ce qui concerne la rotation.Many parameters still need to be improved: the low amplitudes of oscillation, the transmission of significant forces, the sensitivity to shocks, and, in general, the sensitivity to disturbances when carried, in particular with regard to rotation.

Le document FR2928015A1 au nom de LENOBLE décrit un dispositif d'échappement à ancre à impulsion tangentielle pour montre, comportant une roue d'échappement à dents, une ancre et au moins un balancier-spiral, l'ancre étant en deux parties pivotant chacune sur un axe distinct, les deux parties étant articulées entre elles par l'intermédiaire de deux bras de transmission se terminant à leurs extrémités adjacentes par une articulation commune afin de faire tourner les deux parties de l'ancre à la même vitesse mais en sens opposés, chaque partie de l'ancre comportant une levée de repos et une levée d'impulsion, cette dernière recevant des poussées des dents de la roue d'échappement d'une manière tangentielle. Ce dispositif comporte deux balanciers-spirals à axes de rotation oscillatoire distincts, et chaque partie de l'ancre comporte une fourchette pouvant venir en prise d'entraînement sur une ellipse du balancier-spiral correspondant.The document FR2928015A1 in the name of LENOBLE describes a tangential impulse anchor escapement device for a watch, comprising a toothed escape wheel, an anchor and at least one sprung balance, the anchor being in two parts each pivoting on a separate axis , the two parts being articulated to each other by means of two transmission arms terminating at their adjacent ends by a common articulation in order to rotate the two parts of the anchor at the same speed but in opposite directions, each part of the anchor comprising a rest lift and an impulse lift, the latter receiving thrusts from the teeth of the escape wheel in a tangential manner. This device comprises two spiral balances with distinct oscillatory rotation axes, and each part of the anchor comprises a fork which can come into drive engagement on an ellipse of the corresponding sprung balance.

Le document EP3206089A1 au nom de THE SWATCH GROUP RESEARCH & DEVELOPMENT Ltd décrit un mécanisme résonateur d'horlogerie comportant un premier support avec un premier ancrage et un deuxième ancrage auxquels est fixé un mécanisme flexible de guidage en pivotement, qui définit un axe de pivotement virtuel autour duquel pivote de façon rotative une masse pivotante, et qui comporte au moins un pivot flexible RCC antérieur et un pivot flexible RCC postérieur montés en série et tête-bêche l'un par rapport à l'autre autour de l'axe de pivotement virtuel. Le pivot flexible RCC antérieur comporte, entre le premier support et un support rotatif intermédiaire, deux lames flexibles antérieures droites de même longueur antérieure entre leurs encastrements, définissant deux directions linéaires antérieures qui se croisent au niveau de l'axe de pivotement virtuel et qui définissent avec lui un angle antérieur, et dont les ancrages respectifs des deux lames flexibles antérieures droites les plus éloignés de l'axe de pivotement virtuel sont tous deux à une même distance antérieure de l'axe de pivotement virtuel. Le pivot flexible RCC postérieur comporte, entre le support rotatif intermédiaire, qui comporte un troisième ancrage et un quatrième ancrage, et la masse pivotante, deux lames flexibles postérieures droites de même longueur postérieure entre leurs encastrements, définissant deux directions linéaires postérieures qui se croisent au niveau de l'axe de pivotement virtuel et qui définissent avec lui un angle postérieur, et dont les ancrages respectifs des deux lames flexibles postérieures droites les plus éloignés de l'axe de pivotement virtuel sont tous deux à une même distance postérieure de l'axe de pivotement virtuel. Ce mécanisme flexible de guidage en pivotement est plan, et le centre d'inertie de l'ensemble formé par la masse pivotante et toute masse inertielle rapportée que porte la masse pivotante est sur l'axe de pivotement virtuel ou dans son voisinage immédiat. L'angle antérieur exprimé en degrés est déterminé par des inégalités en fonction des longueurs antérieures et des distances antérieures, et l'angle postérieur exprimé en degrés est déterminé par des inégalités similaires en fonction des longueurs postérieures et des distances postérieures.The document EP3206089A1 in the name of THE SWATCH GROUP RESEARCH & DEVELOPMENT Ltd describes a clockwork resonator mechanism comprising a first support with a first anchor and a second anchor to which is attached a flexible pivoting guide mechanism, which defines a virtual pivot axis around which rotates rotatably a pivoting mass, and which comprises at least one anterior flexible pivot RCC and one rear flexible pivot RCC mounted in series and head-to-tail with respect to each other about the virtual pivot axis. The anterior RCC flexible pivot comprises, between the first support and an intermediate rotary support, two anterior straight flexible blades of the same anterior length between their recesses, defining two anterior linear directions which intersect at the level of the virtual pivot axis and which define with it an anterior angle, and the respective anchorages of the two anterior straight flexible blades furthest from the virtual pivot axis are both at the same anterior distance from the virtual pivot axis. The posterior RCC flexible pivot comprises, between the intermediate rotary support, which comprises a third anchor and a fourth anchor, and the pivoting mass, two straight rear flexible blades of the same rear length between their recesses, defining two posterior linear directions which intersect at the level of the virtual pivot axis and which define a posterior angle with it, and whose respective anchorages of the two rear straight flexible blades furthest from the virtual pivot axis are both at the same posterior distance from the axis virtual pivot. This flexible pivoting guide mechanism is plane, and the center of inertia of the assembly formed by the pivoting mass and any added inertial mass that the pivoting mass carries is on the virtual pivot axis or in its immediate vicinity. The anterior angle expressed in degrees is determined by inequalities according to the anterior lengths and the anterior distances, and the posterior angle expressed in degrees is determined by similar inequalities according to the posterior lengths and posterior distances.

Le document EP3128380A1 au nom de ETA décrit un mécanisme régulateur d'horlogerie comportant une platine et, montés mobiles au moins en mouvement de pivotement par rapport à la platine, un mobile d'échappement qui pivote autour d'un axe d'échappement et est soumis à un couple moteur, et au moins un premier résonateur comportant une première structure rigide reliée à la platine par des premiers moyens de rappel élastique. La première structure rigide porte au moins un bras inertiel, dont un premier bras inertiel agencé pour coopérer avec le mobile d'échappement par l'intermédiaire de pistes magnétisées ou/et électrisées que comportent à la fois ce premier bras inertiel et le mobile d'échappement, pour former un dispositif de synchronisation entre le mobile d'échappement et le premier résonateur. Ce dispositif de synchronisation est protégé d'un décrochage lors d'une augmentation accidentelle de couple par un mécanisme d'anti-décrochage mécanique comportant des butées mécaniques d'échappement portées par le mobile d'échappement et au moins une butée mécanique de bras inertiel portée par le premier bras inertiel, et agencées ensemble pour un maintien d'arrêt de butée lors d'une augmentation accidentelle de couple.The document EP3128380A1 in the name of ETA describes a clockwork regulating mechanism comprising a plate and, mounted movable at least in pivoting movement relative to the plate, an escapement mobile which pivots about an escape axis and is subjected to a engine torque, and at least a first resonator comprising a first rigid structure connected to the plate by first elastic return means. The first rigid structure carries at least one inertial arm, including a first inertial arm arranged to cooperate with the escape wheel set by means of magnetized or / and electrified tracks that comprise both this first inertial arm and the mobile unit. exhaust, to form a synchronization device between the exhaust mobile and the first resonator. This synchronization device is protected from stalling during an accidental increase in torque by a mechanical anti-stalling mechanism comprising mechanical exhaust stops carried by the exhaust mobile and at least one mechanical inertial arm stop. carried by the first inertial arm, and arranged together to maintain the stop stop during an accidental increase in torque.

Le document FR1574359A au nom de MEYER décrit un oscillateur élastique comprenant un support fixe et au moins un organe rotatif ainsi que des ressorts disposés radialement par rapport à l'organe rotatif, d'une part assujettis d'une part au support et d'autre part à l'organe rotatif. Les ressorts ont une configuration telle que, à l'intérieur des limites de leur amplitude d'oscillation utile, en leurs points de contact avec l'organe rotatif, ces ressorts décrivent un arc de cercle dont le centre se trouve sur l'axe de rotation de l'organe rotatif. Les ressorts ont une forme prismatique, leur longueur est égale à 1,5 fois la valeur du rayon de l'arc de cercle. L'organe rotatif est fixé au support par deux éléments à ressort disposés à 90° l'un par rapport à l'autre, ou par trois éléments à ressort disposés à 120° l'un par rapport à l'autre. Un support commun peut porter deux organes rotatifs disposés l'un à côté de l'autre et oscillant en sens contraire. Les organes rotatifs peuvent comporter des organes d'engrènement déterminant le sens d'oscillation. Les organes rotatifs peuvent être actionnés par un système magnétique commun. Un support commun peut porter deux organes rotatifs coaxiaux oscillant en sens contraire.The document FR1574359A in the name of MEYER describes an elastic oscillator comprising a fixed support and at least one rotary member as well as springs arranged radially relative to the rotary member, on the one hand subject on the one hand to the support and on the other hand to the rotating organ. The springs have a configuration such that, within the limits of their useful oscillation amplitude, at their points of contact with the rotating member, these springs describe an arc of a circle, the center of which is on the axis of rotation of the rotary member. The springs have a prismatic shape, their length is equal to 1.5 times the value of the radius of the arc of a circle. The rotary member is fixed to the support by two spring elements arranged at 90 ° relative to each other, or by three spring elements arranged at 120 ° relative to each other. A common support can carry two rotary members arranged one beside the other and oscillating in the opposite direction. The rotary members can include meshing members determining the direction of oscillation. The rotating members can be operated by a common magnetic system. A common support can carry two coaxial rotary members oscillating in opposite directions.

Résumé de l'inventionSummary of the invention

L'invention se propose de réaliser un régulateur à pivots flexibles pour montre mécanique, qui soi insensible à ces perturbations pendant le porté, qui soit peu sensible aux chocs, facile à produire, et avec le meilleur rendement possible par la minimisation des frottements.The invention proposes to produce a regulator with flexible pivots for a mechanical watch, which is insensitive to these disturbances during wear, which is not very sensitive to shocks, easy to produce, and with the best possible efficiency by minimizing friction.

A cet effet, l'invention concerne un mécanisme régulateur d'horlogerie selon la revendication 1.To this end, the invention relates to a clockwork regulating mechanism according to claim 1.

L'invention concerne encore un mouvement d'horlogerie comportant au moins un tel mécanisme régulateur.The invention also relates to a timepiece movement comprising at least one such regulating mechanism.

L'invention concerne encore une montre comportant au moins un tel mouvement, et/ou comportant au moins un tel mécanisme régulateur.The invention also relates to a watch comprising at least one such movement, and / or comprising at least one such regulating mechanism.

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 en plan, un mécanisme régulateur comportant deux résonateurs comportant chacun une masse inertielle suspendue par lames flexibles, lesquelles masses définissent l'une avec l'autre une liaison articulée avec du jeu, dans une première position angulaire de repos de chaque résonateur;
  • la figure 2 représente, de façon similaire à la figure 1, le même mécanisme, dans une position intermédiaire d'oscillation;
  • la figure 3 représente, de façon similaire à la figure 1, un mécanisme similaire, avec échappement sur un des résonateurs;
  • la figure 4 représente, de façon similaire à la figure 1, un mécanisme similaire, avec échappement sur les deux résonateurs, dans une première position angulaire de repos de chaque résonateur;
  • la figure 5 représente, de façon similaire à la figure 4, le même mécanisme, dans une position intermédiaire d'oscillation;
  • la figure 6 représente, de façon schématisée, et en vue en plan, un guidage flexible sous forme d'un pivot en vé tête-bêche;
  • la figure 7 représente, de façon schématisée, et en vue en plan, un guidage flexible sous forme d'un pivot à lames croisées en projection;
  • la figure 8 représente, de façon schématisée, et en vue en plan, un guidage flexible sous forme d'un pivot de type Wittrick;
  • la figure 9 représente, de façon similaire à la figure 1, un mécanisme selon l'invention, avec échappement libre à double impulsion tangentielle directe;
  • la figure 10 est un schéma-blocs représentant une montre comportant un mouvement d'horlogerie incluant un tel mécanisme régulateur.
Other characteristics and advantages of the invention will become apparent on reading the detailed description which follows, with reference to the appended drawings, where:
  • the figure 1 shows, schematically, and in plan view, a regulating mechanism comprising two resonators each comprising an inertial mass suspended by flexible blades, which masses define with each other an articulated connection with play, in a first angular position of rest of each resonator;
  • the figure 2 represents, similarly to the figure 1 , the same mechanism, in an intermediate position of oscillation;
  • the figure 3 represents, similarly to the figure 1 , a similar mechanism, with escapement on one of the resonators;
  • the figure 4 represents, similarly to the figure 1 , a similar mechanism, with escapement on the two resonators, in a first angular rest position of each resonator;
  • the figure 5 represents, similarly to the figure 4 , the same mechanism, in an intermediate position of oscillation;
  • the figure 6 represents, schematically, and in plan view, a flexible guide in the form of a head-to-tail vee pivot;
  • the figure 7 shows, schematically, and in plan view, a flexible guide in the form of a pivot with crossed blades in projection;
  • the figure 8 represents, schematically, and in plan view, a flexible guide in the form of a Wittrick type pivot;
  • the figure 9 represents, similarly to the figure 1 , a mechanism according to the invention, with free escapement with double direct tangential impulse;
  • the figure 10 is a block diagram representing a watch comprising a clockwork movement including such a regulating mechanism.

Description détaillée des modes de réalisation préférésDetailed description of the preferred embodiments

L'invention concerne un mécanisme régulateur d'horlogerie 300, comportant une pluralité de résonateurs primaires 100, 200. Ce mécanisme régulateur 300 est un mécanisme à résonateurs articulés.The invention relates to a clockwork regulator mechanism 300, comprising a plurality of primary resonators 100, 200. This regulator mechanism 300 is a mechanism with articulated resonators.

L'invention est applicable en particulier, mais non limitativement, aux résonateurs sur pivots flexibles à faible course, pour montre mécanique, lesquels sont usuellement très sensibles aux perturbations lors du porté, et notamment très sensibles aux accélérations angulaires, notamment en rotation.The invention is applicable in particular, but not restrictively, to resonators on flexible pivots with short travel, for mechanical watches, which are usually very sensitive to disturbances during wearing, and in particular very sensitive to angular accelerations, in particular in rotation.

Les figures n'illustrent, de façon non limitative, que la variante avec deux tels résonateurs primaires 100, 200, et l'homme du métier saura sans peine extrapoler les caractéristiques de l'invention à un nombre supérieur de résonateurs.The figures illustrate, in a nonlimiting manner, only the variant with two such primary resonators 100, 200, and those skilled in the art will easily be able to extrapolate the characteristics of the invention to a greater number of resonators.

Ces résonateurs primaires 100, 200, comportent chacun au moins une masse inertielle 102, 202, qui est mobile de façon pivotante par rapport à une structure fixe 101, 201, à laquelle la masse inertielle 102, 202, est suspendue par une pluralité de lames flexibles 103, 203. Ces lames flexibles définissent, de façon connue, un axe de pivotement virtuel autour duquel pivote la masse inertielle concernée, avec un écart très faible, de quelques micromètres ou dizaines de micromètres, notamment inférieur à 30 micromètres, entre la position de l'axe instantané de pivotement et l'axe virtuel théorique imposé par la forme et le positionnement des lames flexibles.These primary resonators 100, 200, each comprise at least one inertial mass 102, 202, which is movable in a pivoting manner relative to a fixed structure 101, 201, to which the inertial mass 102, 202, is suspended by a plurality of blades. flexible 103, 203. These flexible blades define, in a known manner, a virtual pivot axis around which the inertial mass concerned pivots, with a very small difference, of a few micrometers or tens of micrometers, in particular less than 30 micrometers, between the position of the instantaneous pivot axis and the theoretical virtual axis imposed by the shape and positioning of the flexible blades.

Selon l'invention, ce mécanisme régulateur 300 comporte des moyens mécaniques de synchronisation d'au moins deux tels résonateurs primaires 100, 200. Ces moyens mécaniques de synchronisation comportent une liaison articulée entre deux masses inertielles 102, 202, que comportent les deux résonateurs primaires 100, 200.According to the invention, this regulating mechanism 300 comprises mechanical means for synchronizing at least two such primary resonators 100, 200. These mechanical synchronizing means comprise an articulated connection between two inertial masses 102, 202, which the two primary resonators comprise. 100, 200.

Cette liaison articulée est agencée pour autoriser, en régime normal, le pivotement des deux masses inertielles 102, 202, selon des sens de rotation opposés, et avec des valeurs d'angles de rotation voisines. Et la liaison articulée est agencée pour interdire, lors d'un choc, le pivotement des deux masses inertielles 102, 202, selon le même sens de rotation.This articulated connection is arranged to allow, in normal operation, the pivoting of the two inertial masses 102, 202, in opposite directions of rotation, and with neighboring values of angles of rotation. And the articulated connection is designed to prevent, during an impact, the pivoting of the two inertial masses 102, 202, in the same direction of rotation.

Dans une réalisation particulière, cette liaison articulée est avec jeu.In a particular embodiment, this articulated connection is with play.

Plus particulièrement et non limitativement, et tel que visible sur les figures 1 à 8, cette liaison articulée résulte de la coopération d'une goupille ou similaire, avec une rainure de forme adaptée : plus particulièrement, une des deux masses inertielles 102, 202, comporte une goupille 104, qui coulisse avec jeu dans une fente 204 que comporte l'autre des deux masses inertielles 102, 202. Cette fente 204 est en forme de vé, de façon à autoriser en régime normal le pivotement des deux masses inertielles 102, 202, selon des sens de rotation opposés et selon la même valeur d'angle de rotation.More particularly and without limitation, and as visible on the figures 1 to 8 , this articulated connection results from the cooperation of a pin or the like, with a groove of suitable shape: more particularly, one of the two inertial masses 102, 202, comprises a pin 104, which slides with play in a slot 204 that comprises the other of the two inertial masses 102, 202. This slot 204 is vee-shaped, so as to allow in normal operation the pivoting of the two inertial masses 102, 202, in opposite directions of rotation and according to the same angle of rotation value.

Ainsi, tel que visible sur les figures 1 et 2, les deux résonateurs sont synchronisés par la goupille 104 montée sur un premier bras de la première masse inertielle 102 du premier résonateur 100, dont le premier axe de pivotement virtuel est désigné par D1. La goupille 104 coulisse dans la fente 204 dans un deuxième bras de la deuxième masse inertielle 202 du deuxième résonateur 200. Il existe un espace entre la goupille 104 et la fente 204, de façon à minimiser les frottements. La fente 204 est en forme de vé, s'élargissant vers son ouverture 205 en s'éloignant du deuxième axe de pivotement virtuel D2 de la deuxième masse inertielle 202, cette forme en vé permet que le premier résonateur 100 et le deuxième résonateur 200 puissent avoir le même angle de rotation opposée, et permet d'éviter que la goupille 104 et la fente 204 ne se touchent, de façon à ne pas altérer le rendement mécanique du résonateur.Thus, as seen on the figures 1 and 2 , the two resonators are synchronized by the pin 104 mounted on a first arm of the first inertial mass 102 of the first resonator 100, whose first virtual pivot axis is designated by D1. The pin 104 slides in the slot 204 in a second arm of the second inertial mass 202 of the second resonator 200. There is a space between the pin 104 and the slot 204, so as to minimize friction. The slot 204 is vee-shaped, widening towards its opening 205 away from the second virtual pivot axis D2 of the second inertial mass 202, this vee-shape allows the first resonator 100 and the second resonator 200 to be able to have the same angle of opposite rotation, and makes it possible to prevent the pin 104 and the slot 204 from touching each other, so as not to alter the mechanical efficiency of the resonator.

En cas de choc rotatif, le premier résonateur 100 et le deuxième résonateur 200 tendent à tourner dans le même sens, et la liaison articulée les en empêche, ce qui garantit un fonctionnement correct de l'échappement avec lequel coopère au moins un des deux résonateurs. Il n'y a pas d'arrêt intempestif comme ce serait le cas pour un résonateur unique sur pivot flexible à faible course.In the event of a rotary shock, the first resonator 100 and the second resonator 200 tend to rotate in the same direction, and the articulated connection prevents them, which guarantees correct operation of the exhaust with which at least one of the two resonators cooperates. . There is no untimely stopping as would be the case for a single resonator on a flexible short stroke pivot.

L'entretien des résonateurs peut être effectué de différentes façons.The maintenance of the resonators can be carried out in different ways.

La figure 3 illustre une configuration qui ne fait pas partie de l'invention où le mécanisme régulateur 300 comporte un oscillateur, lequel comporte un mécanisme d'échappement 400 et l'un des résonateurs primaires 100, 200. Les moyens de synchronisation mécanique selon l'invention, notamment dans la variante avec goupille et fente, telle qu'illustrée, sont agencés pour effectuer l'entretien de chaque autre résonateur primaire 100, 200 : ici le premier résonateur 100 coopère avec l'échappement 400, et le deuxième résonateur 200 est entretenu par le premier.The figure 3 illustrates a configuration which does not form part of the invention where the regulator mechanism 300 comprises an oscillator, which comprises an escape mechanism 400 and one of the primary resonators 100, 200. The mechanical synchronization means according to the invention, in particular in the variant with pin and slot, as illustrated, are arranged to perform maintenance on each other primary resonator 100, 200: here the first resonator 100 cooperates with the exhaust 400, and the second resonator 200 is maintained by the first.

Plus particulièrement, cet oscillateur comporte une ancre élargie 401, telle que décrite dans la demande EP16200152 au nom de ETA Manufacture Horlogère Suisse, publiée sous le numéro EP3327515A1 , et dans les demandes qui en dépendent: PCT/EP2017/069037 , PCT/EP2017/069038 , PCT/EP2017/069039 , PCT/EP2017/069040 , PCT/EP2017/069041 , PCT/EP2017/069043 , PCT/EP2017/078497 , PCT/EP2017/080121 . , publiées sous les numéros WO2018/095592 A1 , WO2018/095593A2 , WO2018/099616A2 , WO2018/095594A1 , WO2018/095595A1 , WO2018/095596A2 , WO2018/103978A2 , WO2018/095997A2 , respectivementMore particularly, this oscillator comprises an enlarged anchor 401, as described in the application EP16200152 in the name of ETA Manufacture Horlogère Suisse, published under the number EP3327515A1 , and in the requests which depend on it: PCT / EP2017 / 069037 , PCT / EP2017 / 069038 , PCT / EP2017 / 069039 , PCT / EP2017 / 069040 , PCT / EP2017 / 069041 , PCT / EP2017 / 069043 , PCT / EP2017 / 078497 , PCT / EP2017 / 080121 . , published under the numbers WO2018 / 095592 A1 , WO2018 / 095593A2 , WO2018 / 099616A2 , WO2018 / 095594A1 , WO2018 / 095595A1 , WO2018 / 095596A2 , WO2018 / 103978A2 , WO2018 / 095997A2 , respectively

Un bras 110, que comporte le résonateur primaire 100, 200, avec lequel le mécanisme d'échappement 400 est agencé pour coopérer, le premier résonateur 100 dans le cas de la figure 3, est agencé pour coopérer avec cette ancre élargie 401.An arm 110, which the primary resonator 100, 200 comprises, with which the escape mechanism 400 is arranged to cooperate, the first resonator 100 in the case of figure 3 , is arranged to cooperate with this enlarged anchor 401.

Un deuxième moyen d'entretenir les résonateurs, qui ne fait pas partie de l'invention, est d'utiliser un échappement à repos frottant, qui agit alternativement sur le premier résonateur 200 et le deuxième résonateur 200. Ainsi, tel que visible sur les figures 4 et 5, le mécanisme régulateur 300 comporte un oscillateur lequel comporte un mécanisme d'échappement 400 à repos frottant qui est agencé pour coopérer alternativement avec deux résonateurs primaires 100, 200, au niveau de palettes 121, 221, que comportent les deux masses inertielles 102, 202, que comportent ces deux résonateurs primaires 100, 200.A second means of maintaining the resonators, which does not form part of the invention, is to use an escapement at rubbing rest, which acts alternately on the first resonator 200 and the second resonator 200. Thus, as visible on the figures figures 4 and 5 , the regulating mechanism 300 comprises an oscillator which comprises an escapement mechanism 400 at rubbing rest which is arranged to cooperate alternately with two primary resonators 100, 200, at the level of vanes 121, 221, which comprise the two inertial masses 102, 202 , which these two primary resonators 100, 200 comprise.

Les avantages de cette variante sont nombreux.The advantages of this variant are numerous.

En effet, l'énergie est distribuée de façon égale sur les deux résonateurs. Quand les deux résonateurs primaires 100, 200, ont le même réglage en fréquence et en équilibrage, la liaison articulée est en contact mécanique seulement en cas de choc: la goupille 104 et la fente 204 ne se touchent jamais, sauf en cas de perturbation externe. Ceci permet de minimiser la perturbation de la marche due au frottement entre la goupille 104 et la fente 204.Indeed, the energy is distributed equally on the two resonators. When the two primary resonators 100, 200 have the same frequency and balancing adjustment, the articulated connection is in mechanical contact only in the event of an impact: the pin 104 and the slot 204 never touch each other, except in the event of external disturbance. . This makes it possible to minimize the disturbance of the march due to the friction between the pin 104 and the slot 204.

De préférence, la géométrie des palettes 121, 221, est la même pour les deux résonateurs, ce qui permet d'optimiser les chemins de frottement. Par rapport à un échappement à repos frottant traditionnel, qui a les deux palettes sur le même mobile, la configuration avec une palette par mobile, permet de choisir la géométrie de palette avec le même rendement, sans être obligé d'utiliser des palettes courbes telles que connues de l'échappement Graham. Les figures 4 et 5 illustrent une variante préférée, avec une roue d'échappement 420 avec des dents 421 courbes, et agencées pour coopérer avec les palettes 121, 221, qui sont droites. Cette configuration autorise une confection de palettes en rubis qui reste économique, et il est possible de combiner des palettes en rubis avec une roue d'échappement 420 en silicium ou similaire, et, ainsi, d'éviter les forces de contact élevées d'un couple silicium-silicium, si l'on devait réaliser des palettes courbes en silicium. En effet, l'exécution de la roue d'échappement 420 en silicium reste très avantageuse, car elle permet de minimiser son inertie, que l'on peut encore améliorer avec un évidement maximal et une épaisseur minimale. Les palettes sont plus épaisses que la roue, et la fabrication en rubis par la méthode traditionnelle est tout à fait appropriée.Preferably, the geometry of the vanes 121, 221 is the same for the two resonators, which makes it possible to optimize the friction paths. Compared to a traditional friction-rest escapement, which has both vanes on the same mobile, the configuration with one vane per mobile, allows the vane geometry to be chosen with the same efficiency, without having to use curved vanes such as than known from the Graham exhaust. The figures 4 and 5 illustrate a preferred variant, with an escape wheel 420 with curved teeth 421, and arranged to cooperate with the vanes 121, 221, which are straight. This configuration allows making ruby paddles which remains economical, and it is possible to combine ruby paddles with an escape wheel 420 made of silicon or the like, and thus to avoid the high contact forces of a. silicon-silicon pair, if curved silicon pallets were to be produced. Indeed, the execution of the escapement wheel 420 in silicon remains very advantageous because it makes it possible to minimize its inertia, which can be further improved with a maximum recess and a minimum thickness. The pallets are thicker than the wheel, and ruby fabrication by the traditional method is quite appropriate.

Ainsi, plus particulièrement, le mécanisme d'échappement 400 à repos frottant comporte une roue d'échappement 420 en silicium et/ou dioxyde de silicium, et les palettes 121; 221 sont en rubis de façon à minimiser les forces de contact entre les dents 421 de la roue d'échappement 420 et les palettes 121, 221.Thus, more particularly, the escapement mechanism 400 at rubbing rest comprises an escape wheel 420 made of silicon and / or silicon dioxide, and the vanes 121; 221 are ruby so as to minimize the contact forces between the teeth 421 of the escape wheel 420 and the vanes 121, 221.

Selon l'invention,un troisième moyen d'entretenir les résonateurs consiste à utiliser un mécanisme régulateur 300 articulé, qui comporte un oscillateur lequel comporte un mécanisme d'échappement 400 libre à double impulsion tangentielle directe, tel que visible sur la figure 9. Ce mécanisme régulateur 300 comporte une liaison cinématique 600 entre deux masses inertielles 102, 202, que comportent deux résonateurs primaires 100, 200, et qui sont agencées pour pivoter en sens contraire. Ces deux masses inertielles 102, 202, comportent des palettes 121, 221, agencées pour coopérer avec des dents 421, que comporte une roue d'échappement 420 que comporte le mécanisme d'échappement 400, de façon à produire une impulsion directe de la roue d'échappement 420 à l'une des palettes 121, 221, à chaque alternance de l'oscillation. Cette liaison cinématique 600 comporte avantageusement la liaison articulée avec jeu, selon l'invention, entre les deux masses inertielles 102, 202.According to the invention, a third means of maintaining the resonators consists in using an articulated regulator mechanism 300, which comprises an oscillator which comprises a free escape mechanism 400 with direct double tangential pulse, as visible on the figure. figure 9 . This regulating mechanism 300 comprises a kinematic connection 600 between two inertial masses 102, 202, which two primary resonators 100, 200 comprise, and which are arranged to pivot in the opposite direction. These two inertial masses 102, 202, comprise vanes 121, 221, arranged to cooperate with teeth 421, which an escape wheel 420 that comprises the escape mechanism 400 comprises, so as to produce a direct impulse from the wheel exhaust 420 to one of the vanes 121, 221, at each alternation of the oscillation. This kinematic link 600 advantageously comprises the articulated link with clearance, according to the invention, between the two inertial masses 102, 202.

Ce mécanisme est comparable à un échappement coaxial, dans lequel l'impulsion directe de l'ancre est remplacée ici par une impulsion directe sur la masse inertielle du deuxième résonateur.This mechanism is comparable to a coaxial escapement, in which the direct impulse of the anchor is replaced here by a direct impulse on the inertial mass of the second resonator.

Plus particulièrement, dans une variante illustrée par la figure 9, le mécanisme régulateur 300 comporte un arrêtoir bistable 700, qui est agencé pour coopérer, d'une part par un premier bras 701 avec une des dents 421 pour l'arrêt de la roue d'échappement 420, et d'autre part par une fourchette 703 avec une cheville 207 que comporte une des deux masses inertielles 102, 202. Cet arrêtoir à deux positions stables, qui ressemble à une ancre, ne sert que de repos pour arrêter la roue d'échappement par ce premier bras 701. Le pivotement de la deuxième masse inertielle fait échapper la cheville 207 de la fourchette 703, et libère alors le pivotement de l'arrêtoir 700, et ainsi autorise la rotation de la roue d'échappement.More particularly, in a variant illustrated by figure 9 , the regulating mechanism 300 comprises a bistable stopper 700, which is arranged to cooperate, on the one hand by a first arm 701 with one of the teeth 421 for stopping the escape wheel 420, and on the other hand by a fork 703 with a pin 207 that includes one of the two inertial masses 102, 202. This stopper with two stable positions, which looks like an anchor, only serves as a rest to stop the escape wheel by this first arm 701. The pivoting of the second inertial mass causes the pin 207 to escape from the fork 703, and then releases the pivoting of the stopper 700, and thus allows the rotation of the escape wheel.

Selon ce troisième moyen, le mécanisme d'échappement 400 est libre à double impulsion tangentielle directe.According to this third means, the escape mechanism 400 is free with double direct tangential impulse.

En effet, il est libre car le résonateur est libre pendant une partie de son oscillation, ce qui est favorable d'un point de vue chronométrique.Indeed, it is free because the resonator is free during part of its oscillation, which is favorable from a chronometric point of view.

Il est à double impulsion, car une impulsion se produit à chaque alternance de l'oscillation.It is double-pulse, because a pulse occurs with each alternation of the oscillation.

Il est à impulsion tangentielle, car le contact qui produit l'impulsion se produit sensiblement sur la ligne qui relie le centre d'inertie de la masse inertielle considérée au centre de la roue d'échappement (par opposition à l'impulsion frottante d'un échappement à ancre suisse traditionnel).It is tangential impulse, because the contact which produces the impulse occurs substantially on the line which connects the center of inertia of the inertial mass considered to the center of the escape wheel (as opposed to the friction impulse of a traditional Swiss lever escapement).

Il est à impulsion directe car l'impulsion est donnée directement de la roue au résonateur, sans nécessairement passer par une ancre.It is a direct impulse because the impulse is given directly from the wheel to the resonator, without necessarily going through an anchor.

On comprend que cette double impulsion directe n'est possible que parce que les deux masses inertielles pivotent selon des sens opposés. Ainsi, la roue d'échappement, qui tourne toujours dans le même sens, peut pousser l'une des masses inertielles lors de la première alternance, et l'autre lors de la deuxième alternance.It is understood that this direct double impulse is only possible because the two inertial masses pivot in opposite directions. Thus, the escape wheel, which always turns in the same direction, can push one of the inertial masses during the first alternation, and the other during the second alternation.

Les lignes en trait interrompu A, B, C, D de la figure 9 illustrent des agencements relatifs avantageux: la droite A joignant les pivots virtuels des deux guidages flexibles est perpendiculaire à la direction B issue du centre de la roue d'échappement qui est la médiatrice de ces deux pivots, l'impulsion entre une dent 421 et une palette 121, 221, se faisant au voisinage de cette droite B; l'un des pivots définit avec l'axe de l'arrêtoir 700 une droite C, perpendiculaire à la droite D joignant l'axe de la roue d'échappement et l'axe de l'arrêtoir; le contact entre la cheville 207 et la fourchette 703 se fait au voisinage de cette droite C.The dashed lines A, B, C, D of the figure 9 illustrate advantageous relative arrangements: the straight line A joining the virtual pivots of the two flexible guides is perpendicular to the direction B coming from the center of the escape wheel which is the perpendicular bisector of these two pivots, the impulse between a tooth 421 and a pallet 121, 221, taking place in the vicinity of this straight line B; one of the pivots defines with the axis of the stopper 700 a straight line C, perpendicular to the straight line D joining the axis of the escape wheel and the axis of the stopper; the contact between the pin 207 and the fork 703 takes place in the vicinity of this straight line C.

En ce qui concerne les pivots flexibles, différentes configurations sont utilisables.Regarding the flexible pivots, different configurations can be used.

La figure 6 illustre le cas où la pluralité de lames flexibles 103, 203, comporte au moins un pivot comportant des vés tête-bêche, cette configuration étant connue pour être insensible aux positions de la montre.The figure 6 illustrates the case where the plurality of flexible blades 103, 203 comprises at least one pivot comprising head-to-tail ves, this configuration being known to be insensitive to the positions of the watch.

La figure 7 illustre le cas où la pluralité de lames flexibles 103, 203, comporte au moins un pivot à lames dans deux plans parallèles et croisées en projection, cette configuration étant également connue pour être insensible aux positions de la montre, dans des conditions d'angle et de point de croisement particulières.The figure 7 illustrates the case where the plurality of flexible blades 103, 203, comprises at least one pivot with blades in two planes parallel and crossed in projection, this configuration also being known to be insensitive to the positions of the watch, under conditions of angle and specific crossing points.

La figure 8 illustre le cas où la pluralité de lames flexibles 103, 203, comporte au moins un pivot en vé de type Wittrick, qui est connue pour être sensible aux positions de la montre lors du porté. Toutefois, grâce aux moyens de synchronisation avec la liaison articulée, cette configuration est aussi utilisable, car la liaison articulée annule la sensibilité aux positions. Cette variante est particulièrement simple à réaliser.The figure 8 illustrates the case where the plurality of flexible blades 103, 203 comprises at least one Vee pivot of the Wittrick type, which is known to be sensitive to the positions of the watch when worn. However, thanks to the means of synchronization with the articulated link, this configuration can also be used, since the articulated link cancels out the position sensitivity. This variant is particularly simple to produce.

L'invention concerne encore un mouvement d'horlogerie 500 comportant au moins un tel mécanisme régulateur d'horlogerie 300.The invention also relates to a clockwork movement 500 comprising at least one such clockwork regulator mechanism 300.

L'invention concerne encore une montre 1000 comportant au moins un tel mouvement 500, et/ou comportant au moins un tel mécanisme régulateur 300.The invention also relates to a watch 1000 comprising at least one such movement 500, and / or comprising at least one such regulating mechanism 300.

Claims (9)

  1. Timepiece regulating mechanism (300) having a plurality of primary resonators (100; 200) each including at least one inertial weight (102; 202), which is pivotable with respect to a fixed structure (101, 201) to which said inertial weight (102; 202) is suspended by a plurality of flexible strips (103; 203), wherein said regulating mechanism (300) includes mechanical means for synchronisation of at least two said primary resonators (100; 200) which include an articulated connection between the two said inertial weights (102; 202) included in said two primary resonators (100; 200), this articulated connection is arranged, under normal conditions, to allow pivoting of said two inertial weights (102, 202) in opposite directions of rotation and with close rotation angle values, and is arranged to prevent, during a shock, pivoting of said two inertial weights (102; 202) in the same direction of rotation, characterised in that said regulating mechanism (300) includes an oscillator which includes a free escapement mechanism (400) with direct tangential double impulse, includes a kinematic connection (600) including said articulated connection, between said two inertial weights (102; 202) which are included in said two primary resonators (100; 200) and which are arranged to pivot in contrary directions, these said two inertial weights (102; 202) include pallet stones (121, 221) arranged to cooperate with teeth (421) of an escapement wheel (420) which is included in said escapement mechanism (400), so as to produce a direct impulse of said escapement wheel (420) to one of said pallet stones (121; 221) on each alternation of the oscillation.
  2. Timepiece regulating mechanism (300) according to claim 1, characterised in that said articulated connection is a connection in which there is play.
  3. Timepiece regulating mechanism (300) according to claim 1 or 2, characterised in that one of said two inertial weights (102; 202) includes a pin (104) that slides with play in a slot (204) included in the other of said two inertial weights (102; 202), said slot (204) being V-shaped so as to allow, under normal conditions, pivoting of said two inertial weights (102; 202) in opposite directions of rotation and with the same rotation angle value.
  4. Timepiece regulating mechanism (300) according to one of claims 1 to 3, characterised in that said timepiece regulating mechanism (300) includes a bistable stop (700) arranged to cooperate, on the one hand, via a first arm (701) with one of said teeth (421) and, on the other hand, with a fork (703) with a pin (207) that is included in one of said two inertial weights (102; 202).
  5. Timepiece regulating mechanism (300) according to one of claims 1 to 4, characterised in that said plurality of flexible strips (103; 203) includes at least one position insensitive pivot including head-to-tail V-shaped portions.
  6. Timepiece regulating mechanism (300) according to one of claims 1 to 5, characterised in that said plurality of flexible strips (103; 203) includes at least one position insensitive pivot with strips in two parallel planes that cross in projection.
  7. Timepiece regulating mechanism (300) according to one of claims 1 to 6, characterised in that said plurality of flexible strips (103; 203) includes at least one Wittrick-type V-shaped pivot, wherein said articulated connection removes position sensitivity.
  8. Timepiece movement (500) including at least one timepiece regulating mechanism (300) according to one of claims 1 to 7.
  9. Watch (1000) including at least one timepiece movement (500) according to claim 8 and/or including at least one timepiece regulating mechanism (300) according to one of claims 1 to 7.
EP19159421.7A 2018-04-25 2018-04-25 Timepiece regulator mechanism with hinged resonators Active EP3561604B1 (en)

Priority Applications (1)

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EP19159421.7A EP3561604B1 (en) 2018-04-25 2018-04-25 Timepiece regulator mechanism with hinged resonators
EP18169314.4A EP3561603B1 (en) 2018-04-25 2018-04-25 Timepiece regulator mechanism with hinged resonators

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EP3971655A1 (en) * 2020-09-18 2022-03-23 ETA SA Manufacture Horlogère Suisse Shock-proof protection with abutment for a resonator mechanism with rotatable flexible guiding

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EP3561604A1 (en) 2019-10-30
US20190332056A1 (en) 2019-10-31
JP2019191156A (en) 2019-10-31
EP3561603A1 (en) 2019-10-30
CN110398893B (en) 2021-04-27
JP6828073B2 (en) 2021-02-10
EP3561605A1 (en) 2019-10-30
EP3561605B1 (en) 2020-10-28
EP3561603B1 (en) 2021-01-06
CN110398893A (en) 2019-11-01
US11454933B2 (en) 2022-09-27

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