EP3561604A1 - Timepiece regulator mechanism with hinged resonators - Google Patents
Timepiece regulator mechanism with hinged resonators Download PDFInfo
- Publication number
- EP3561604A1 EP3561604A1 EP19159421.7A EP19159421A EP3561604A1 EP 3561604 A1 EP3561604 A1 EP 3561604A1 EP 19159421 A EP19159421 A EP 19159421A EP 3561604 A1 EP3561604 A1 EP 3561604A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inertial
- masses
- inertial masses
- rotation
- resonators
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000007246 mechanism Effects 0.000 title claims abstract description 55
- 230000009975 flexible effect Effects 0.000 claims abstract description 35
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 230000010355 oscillation Effects 0.000 claims description 11
- 210000003423 ankle Anatomy 0.000 claims description 4
- 230000035945 sensitivity Effects 0.000 claims description 4
- 230000035939 shock Effects 0.000 abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 239000010979 ruby Substances 0.000 description 4
- 229910001750 ruby Inorganic materials 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005021 gait Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008844 regulatory mechanism Effects 0.000 description 1
- SBEQWOXEGHQIMW-UHFFFAOYSA-N silicon Chemical compound [Si].[Si] SBEQWOXEGHQIMW-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
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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
- G04B17/045—Oscillators acting by spring tension with oscillating blade springs
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B15/00—Escapements
- G04B15/06—Free escapements
- G04B15/08—Lever escapements
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B15/00—Escapements
- G04B15/06—Free escapements
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B15/00—Escapements
- G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
-
- 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
- G04B17/30—Rotating governors, e.g. centrifugal governors, fan governors
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
Definitions
- the invention relates to a time clock control mechanism comprising a plurality of primary resonators each comprising at least one inertial mass pivotally movable relative to a fixed structure to which said inertial mass is suspended by a plurality of flexible blades.
- the invention also relates to a watch movement comprising at least one such regulating mechanism.
- the invention also relates to a watch comprising at least one such movement, and / or comprising at least one such regulating mechanism.
- the invention relates to the field of regulation mechanisms for mechanical watchmaking.
- clock oscillators and resonators have evolved considerably with the emergence of techniques for producing silicon components or materials with similar characteristics, which have led to the advent of flexible guides, in particular blades, defining virtual pivots, and to overcome the traditional pivots, energy consumers, subject to wear and requiring adequate lubrication.
- the document FR2928015A1 in the name of LENOBLE describes a tangential pulse anchor escapement for a watch, comprising a toothed escape wheel, an anchor and at least one balance spring, the anchor being in two parts each pivoting on a separate axis , the two parts being hinged together by means of two transmission arms terminating at their adjacent ends by a common hinge in order to rotate the two parts of the anchor at the same speed but in opposite directions, each part of the anchor having a lift and a pulse lift, the latter receiving thrusts of the teeth of the escape wheel in a tangential manner.
- This device comprises two spiral rockers with distinct oscillating axes of rotation, and each part of the anchor comprises a fork that can engage drive on an ellipse of the corresponding balance spring.
- the document EP3206089A1 on behalf of THE SWATCH GROUP RESEARCH & DEVELOPMENT Ltd. discloses a timepiece resonator mechanism having a first support with a first anchor and a second anchor to which is attached a flexible pivotal guide mechanism, which defines a virtual pivot axis around which pivots rotatively rotating mass, and which comprises at least one front RCC flexible pivot and a rear RCC flexible pivot connected in series and head to tail with respect to each other about the virtual pivot axis.
- the front flexible pivot RCC comprises, between the first support and an intermediate rotary support, two straight forward flexible blades of the same anterior length between their recesses, defining two anterior linear directions which intersect at the virtual pivot axis and which define with it an anterior angle, and whose respective anchors of the two anterior straight flexible blades furthest from the virtual pivot axis are both at the same distance anterior to the virtual pivot axis.
- the rear flexible pivot RCC comprises, between the intermediate rotary support, which comprises a third anchor and a fourth anchorage, and the pivoting mass, two straight posterior flexible blades of the same posterior length between their recesses, defining two posterior linear directions which intersect at the level of the virtual pivot axis and which define with it a posterior angle, and whose respective anchors of the two posterior flexible blades straight furthest from the virtual pivot axis are both at the same distance posterior to the axis Virtual pivoting.
- This flexible pivoting guide mechanism is plane, and the center of inertia of the assembly formed by the pivoting mass and any reported inertial mass carried by the pivoting mass is on the virtual pivot axis or in its immediate vicinity.
- the previous angle expressed in degrees is determined by inequalities as a function of the anterior lengths and the anterior distances, and the posterior angle expressed in degrees is determined by similar inequalities as a function of the posterior lengths and the posterior distances.
- the document EP3128380A1 in the name of ETA describes a timepiece control mechanism comprising a plate and, mounted movable at least in pivoting movement relative to the plate, an escapement that pivots about an exhaust 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 escapement mobile via magnetized tracks and / or electrified that comprise both this first inertial arm and the mobile of 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-stall mechanism comprising mechanical exhaust stops carried by the escape wheel and at least one mechanical stop of inertial arm carried by the first inertial arm, and arranged together for a stop hold stop during an accidental increase in torque.
- 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 with respect to the rotary member, on the one hand secured on the one hand to the support and on the other hand to the rotating member.
- the springs have a configuration such that, within the limits of their useful oscillation amplitude, at their points of contact with the rotary member, these springs describe an arc whose center is on the axis of rotation. 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.
- 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 next to each other and oscillating in opposite directions.
- the rotary members may comprise meshing members determining the direction of oscillation.
- the rotary members can be actuated by a common magnetic system.
- a common support can carry two coaxial rotary members oscillating in opposite directions.
- the invention proposes to provide a flexible pivot controller for mechanical watch, which is insensitive to these disturbances during the wear, which is very sensitive to shocks, easy to produce, and with the best possible performance by minimizing friction.
- the invention relates to a clock control mechanism according to claim 1.
- the invention also relates to a watch movement comprising at least one such regulating mechanism.
- the invention also relates to a watch comprising at least one such movement, and / or comprising at least one such regulating mechanism.
- the invention relates to a timepiece control mechanism 300, comprising a plurality of primary resonators 100, 200.
- This regulator mechanism 300 is a mechanism with articulated resonators
- the invention is applicable in particular, but not exclusively, to resonators on flexible pivots with short stroke, for mechanical watches, which are usually very sensitive to disturbances when worn, and in particular very sensitive to angular accelerations, especially in rotation.
- These primary resonators 100, 200 each comprise at least one inertial mass 102, 202, which is pivotally movable relative to a fixed structure 101, 201, in which the inertial mass 102, 202 is suspended by a plurality of blades.
- These flexible blades define, in known manner, a virtual pivot axis around which rotates the inertial mass concerned, with a very small difference, of a few micrometers or tens of micrometers, especially 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.
- this regulator mechanism 300 comprises mechanical means for synchronizing at least two such primary resonators 100, 200.
- These mechanical synchronization means comprise an articulated connection between two inertial masses 102, 202, which comprise the two primary resonators. 100, 200.
- 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 values of neighboring rotation angles. And the articulated connection is arranged to prohibit, during an impact, the pivoting of the two inertial masses 102, 202 in the same direction of rotation.
- this articulated connection is with play.
- this articulated connection results from the cooperation of a pin or the like, with a groove of adapted shape: more particularly, one of the two inertial masses 102, 202 comprises a pin 104, which slides with play in a slot 204 which comprises the other of the two inertial masses 102, 202.
- This slot 204 is vee-shaped, so as to allow in the normal regime the pivoting of the two inertial masses 102, 202, in opposite directions of rotation and according to the same angle of rotation value.
- 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 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 toward its opening 205 away from the second virtual pivoting axis D2 of the second inertial mass 202, this vee shape allows that the first resonator 100 and the second resonator 200 can have the same opposite angle of rotation, and prevents the pin 104 and the slot 204 from touching, so as not to affect the mechanical efficiency of the resonator.
- the first resonator 100 and the second resonator 200 tend to rotate in the same direction, and the articulated connection prevents them, which guarantees a correct operation of the exhaust with which at least one of the two resonators cooperates. . There is no untimely shutdown as it would be the case for a single resonator on flexible pivot with short stroke.
- the maintenance of the resonators can be done in different ways.
- the figure 3 illustrates the configuration 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 are arranged to perform the maintenance of 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.
- this oscillator comprises an enlarged anchor 401, as described in the application EP16200152 on behalf of ETA Manufacture Horlogère Suisse, and in the requests that 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 .
- An arm 110 which includes the primary resonator 100, 200, with which the escape mechanism 400 is arranged to cooperate, the first resonator 100 in the case of the figure 3 , is arranged to cooperate with this enlarged anchor 401.
- a second means of maintaining the resonators is to use a friction-resting escapement, which acts alternately on the first resonator 200 and the second resonator 200.
- the regulator mechanism 300 comprises an oscillator which comprises an escapement mechanism 400 with frictional 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 comprise these two primary resonators 100, 200.
- the energy is distributed equally on both resonators.
- the articulated connection is in mechanical contact only in case of shock: the pin 104 and the slot 204 never touch, except in case of external disturbance . This minimizes the disturbance of the gait due to the friction between the pin 104 and the slot 204.
- the geometry of the vanes 121, 221 is the same for the two resonators, which makes it possible to optimize the friction paths.
- the configuration according to the invention with a pallet per mobile, makes it possible to choose the pallet geometry with the same efficiency, without being obliged to use curved vanes as 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 pallets 121, 221, which are straight.
- This configuration allows the manufacture of ruby pallets which remains economical, and it is possible to combine ruby vanes with a silicon escapement wheel 420 or the like, and thus to avoid the high contact forces of a silicon-silicon pair, if one had to realize curved pallets made of silicon.
- the execution of the silicon escapement wheel 420 remains very advantageous because it minimizes its inertia, which can be further improved with a maximum recess and a minimum thickness.
- the pallets are thicker than the wheel, and ruby manufacturing by the traditional method is quite appropriate.
- the escape mechanism 400 at rest rubbing comprises an escape wheel 420 made of silicon and / or silicon dioxide, and the pallets 121; 221 are in ruby so as to minimize the contact forces between the teeth 421 of the escape wheel 420 and the pallets 121, 221.
- a third means of maintaining the resonators consists in using an articulated regulating mechanism 300, which comprises an oscillator which comprises a free-flow mechanism 400 with direct tangential double impulse, as visible on FIG. figure 9 .
- This regulator mechanism 300 comprises a kinematic connection 600 between two inertial masses 102, 202, which comprise two primary resonators 100, 200, and which are arranged to pivot in opposite directions.
- These two inertial masses 102, 202 comprise pallets 121, 221, arranged to cooperate with teeth 421, which comprises an escape wheel 420 that includes the exhaust mechanism 400, so as to produce a direct impulse of the wheel exhaust 420 to one of the pallets 121, 221, with each alternation of the oscillation.
- This kinematic link 600 advantageously comprises the articulated connection with clearance, according to the invention, between the two inertial masses 102, 202.
- 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.
- 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 an ankle 207 that comprises one of the two inertial masses 102, 202.
- This stop with two stable positions, which looks like an anchor, serves only rest to stop the escape wheel by the first arm 701.
- the pivoting the second inertial mass causes the ankle 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.
- the escape mechanism 400 is free to double direct tangential pulse.
- the lines in broken lines A, B, C, D of the figure 9 illustrate advantageous relative arrangements: the 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 mediator of these two pivots, the pulse between a tooth 421 and a pallet 121, 221, being in the vicinity of this line B; one of the pivots defines with the axis of the stopper 700 a straight line C, perpendicular to the line D joining the axis of the escape wheel and the axis of the stop; the contact between the ankle 207 and the fork 703 is in the vicinity of this straight line C.
- the figure 6 illustrates the case where the plurality of flexible blades 103, 203 comprises at least one pivot having vés head to tail, this configuration being known to be insensitive to the positions of the watch.
- the figure 7 illustrates the case where the plurality of flexible blades 103, 203 comprises at least one blade pivot in two parallel planes and crossed in projection, this configuration being also known to be insensitive to the positions of the watch, under angle conditions and of particular crossing points.
- the figure 8 illustrates the case where the plurality of flexible blades 103, 203, comprises at least one Wittrick V-shaped pivot, which is known to be sensitive to the positions of the watch when worn.
- this configuration is also usable because the articulated connection cancels the position sensitivity.
- This variant is particularly simple to achieve.
- the invention also relates to a watch movement 500 comprising at least one such watch clock mechanism 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.
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- General Physics & Mathematics (AREA)
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
Mécanisme régulateur d'horlogerie (300) comportant des résonateurs primaires (100; 200) avec chacun une masse inertielle (102; 202) suspendue par des lames flexibles (103; 203) à une structure (101; 201) par rapport à laquelle elle pivote, et des moyens mécaniques de synchronisation des résonateurs (100; 200) avec une liaison articulée entre les masses (102; 202), autorisant en régime normal leur pivotement selon des sens de rotation opposés et des angles de rotation voisins, et interdisant, lors de chocs, leur pivotement selon le même sens de rotation, le mécanisme (300) comporte un oscillateur avec un mécanisme d'échappement (400) libre à double impulsion tangentielle directe, et une liaison cinématique (600), comportant la liaison articulée, entre les masses (102; 202) lesquelles comportent des palettes (121; 221) pour coopérer avec les dents (421) d'une roue d'échappement (420), avec une impulsion directe de la roue d'échappement (420) à une palette (121; 221) à chaque alternance.Clock control mechanism (300) having primary resonators (100; 200) each having an inertial mass (102; 202) suspended by flexible blades (103; 203) to a structure (101; 201) with respect to which it rotates, and mechanical resonator synchronization means (100; 200) with an articulated connection between the masses (102; 202), permitting in their normal regime their pivoting in opposite directions of rotation and neighboring rotation angles, and prohibiting, during shocks, their pivoting in the same direction of rotation, the mechanism (300) comprises an oscillator with a free escape mechanism (400) free tangential direct tangential, and a kinematic link (600), comprising the articulated connection, between the masses (102, 202) which comprise vanes (121; 221) for cooperating with the teeth (421) of an escape wheel (420), with a direct impulse of the escape wheel (420) to a palette (121; 221) at each alternation.
Description
L'invention concerne un mécanisme régulateur d'horlogerie comportant une pluralité de résonateurs primaires comportant chacun au moins une masse inertielle mobile de façon pivotante par rapport à une structure fixe à laquelle ladite masse inertielle est suspendue par une pluralité de lames flexibles.The invention relates to a time clock control mechanism comprising a plurality of primary resonators each comprising at least one inertial mass pivotally movable relative to a fixed structure to which said inertial mass is suspended by a plurality of flexible blades.
L'invention concerne encore un mouvement d'horlogerie comportant au moins un tel mécanisme régulateur.The invention also relates to a watch 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.
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 clock oscillators and resonators has evolved considerably with the emergence of techniques for producing silicon components or materials with similar characteristics, which have led to the advent of flexible guides, in particular blades, defining virtual pivots, and 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 nevertheless remain to be improved: the low amplitudes of oscillation, the transmission of large forces, the sensitivity to shocks, and, in general, the sensitivity to disturbances of the bearing, in particular with regard to rotation.
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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 provide a flexible pivot controller for mechanical watch, which is insensitive to these disturbances during the wear, which is very sensitive to shocks, easy to produce, and with the best possible performance by minimizing friction.
A cet effet, l'invention concerne un mécanisme régulateur d'horlogerie selon la revendication 1.For this purpose, the invention relates to a clock control 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 watch 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.
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 selon l'invention, 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 lafigure 1 , le même mécanisme, dans une position intermédiaire d'oscillation; - la
figure 3 représente, de façon similaire à lafigure 1 , un mécanisme similaire, avec échappement sur un des résonateurs; - la
figure 4 représente, de façon similaire à lafigure 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 lafigure 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 lafigure 1 , un mécanisme similaire, 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.
- the
figure 1 schematically represents, in plan view, a regulating mechanism according to the invention, comprising two resonators each comprising an inertial mass suspended by flexible blades, which masses define with each other a link articulated with play, in a first angular rest position of each resonator; - the
figure 2 represents, similarly to thefigure 1 the same mechanism in an intermediate position of oscillation; - the
figure 3 represents, similarly to thefigure 1 a similar mechanism with exhaust on one of the resonators; - the
figure 4 represents, similarly to thefigure 1 a similar mechanism, with exhaust on the two resonators, in a first angular rest position of each resonator; - the
figure 5 represents, similarly to thefigure 4 the same mechanism in an intermediate position of oscillation; - the
figure 6 schematically shows, in plan view, a flexible guide in the form of a pivot vee head to tail; - the
figure 7 schematically shows, in plan view, a flexible guide in the form of a pivot with crossed blades in projection; - the
figure 8 schematically shows, in plan view, a flexible guide in the form of a Wittrick type pivot; - the
figure 9 represents, similarly to thefigure 1 , a similar mechanism, with free exhaust with direct tangential double impulse; - the
figure 10 is a block diagram showing a watch comprising a watch movement including such a regulating mechanism.
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 articulésThe invention relates to a
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 exclusively, to resonators on flexible pivots with short stroke, for mechanical watches, which are usually very sensitive to disturbances when worn, and in particular very sensitive to angular accelerations, especially 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 do not illustrate, in a nonlimiting manner, that the variant with two such
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
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
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
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
Ainsi, tel que visible sur les
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 impact, the
L'entretien des résonateurs peut être effectué de différentes façons.The maintenance of the resonators can be done in different ways.
La
Plus particulièrement, cet oscillateur comporte une ancre élargie 401, telle que décrite dans la demande
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
Un deuxième moyen d'entretenir les résonateurs 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
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 both resonators. When the two
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 selon l'invention, 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
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
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
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
Selon ce troisième moyen, le mécanisme d'échappement 400 est libre à double impulsion tangentielle directe.According to this third means, the
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 at 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 a tangential impulse because the contact that produces the impulse occurs substantially on the line that connects the center of inertia of the inertial mass considered at the center of the escape wheel (as opposed to the rubbing impulse of a traditional Swiss anchor 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 passing 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 double direct impulse is only possible because the two inertial masses rotate in opposite directions. Thus, the escape wheel, which always rotates 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
En ce qui concerne les pivots flexibles, différentes configurations sont utilisables.With regard to the flexible pivots, different configurations are usable.
La
La
La
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
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
Claims (9)
Priority Applications (1)
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EP19159421.7A EP3561604B1 (en) | 2018-04-25 | 2018-04-25 | Timepiece regulator mechanism with hinged resonators |
Applications Claiming Priority (2)
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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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EP18169314.4A Division EP3561603B1 (en) | 2018-04-25 | 2018-04-25 | Timepiece regulator mechanism with hinged resonators |
EP18169314.4A Division-Into EP3561603B1 (en) | 2018-04-25 | 2018-04-25 | Timepiece regulator mechanism with hinged resonators |
Publications (2)
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EP3561604A1 true EP3561604A1 (en) | 2019-10-30 |
EP3561604B1 EP3561604B1 (en) | 2020-10-28 |
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EP18169314.4A Active EP3561603B1 (en) | 2018-04-25 | 2018-04-25 | Timepiece regulator mechanism with hinged resonators |
EP19159421.7A Active EP3561604B1 (en) | 2018-04-25 | 2018-04-25 | Timepiece regulator mechanism with hinged resonators |
EP19159418.3A Active EP3561605B1 (en) | 2018-04-25 | 2018-04-25 | Timepiece regulator mechanism with hinged resonators |
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EP18169314.4A Active EP3561603B1 (en) | 2018-04-25 | 2018-04-25 | Timepiece regulator mechanism with hinged resonators |
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EP19159418.3A Active EP3561605B1 (en) | 2018-04-25 | 2018-04-25 | Timepiece regulator mechanism with hinged resonators |
Country Status (4)
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US (1) | US11454933B2 (en) |
EP (3) | EP3561603B1 (en) |
JP (1) | JP6828073B2 (en) |
CN (1) | CN110398893B (en) |
Families Citing this family (1)
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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 |
Citations (4)
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FR1574359A (en) | 1967-08-02 | 1969-07-11 | ||
FR2928015A1 (en) | 2008-02-22 | 2009-08-28 | Jean Paul Lenoble | Tangential impulse pallet escapement device for mechanical watch, has escape wheel with teeth, pallet and two spiral-timed balance motors, and forks using driven force on ellipses of large plates in corresponding motors |
EP3128380A1 (en) | 2015-08-04 | 2017-02-08 | ETA SA Manufacture Horlogère Suisse | Watch regulator mechanism with magnetically synchronised rotary arms |
EP3206089A1 (en) | 2016-02-10 | 2017-08-16 | The Swatch Group Research and Development Ltd. | Timepiece resonator mechanism |
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DE2410098C3 (en) * | 1974-03-02 | 1979-07-26 | Diehl Gmbh & Co, 8500 Nuernberg | Time switch |
CH702062B1 (en) * | 2009-10-26 | 2022-01-31 | Mft Dhorlogerie Audemars Piguet Sa | Regulating organ comprising at least two pendulums, a watch movement as well as a timepiece comprising such an organ. |
CH707171A2 (en) * | 2012-11-09 | 2014-05-15 | Nivarox Sa | Horological limiting or transmission mechanism for limiting or transmitting angular movement of clockwork, has limiting or transmission unit fixed with component of clockwork by bistable flexible element or with structural element |
JP6355102B2 (en) * | 2013-09-04 | 2018-07-11 | セイコーインスツル株式会社 | Constant force devices, movements and mechanical watches |
CN105849651B (en) * | 2013-12-23 | 2017-09-29 | Eta瑞士钟表制造股份有限公司 | Clock and watch lazy-tongs |
WO2016037726A1 (en) * | 2014-09-09 | 2016-03-17 | The Swatch Group Research And Development Ltd | Combined resonator having improved isochronism |
EP3032352A1 (en) * | 2014-12-09 | 2016-06-15 | LVMH Swiss Manufactures SA | Timepiece regulator, timepiece movement and timepiece having such a regulator |
EP3035127B1 (en) * | 2014-12-18 | 2017-08-23 | The Swatch Group Research and Development Ltd. | Clock oscillator with tuning fork |
EP3035126B1 (en) * | 2014-12-18 | 2017-12-13 | The Swatch Group Research and Development Ltd. | Timepiece resonator with crossed blades |
EP3254158B1 (en) * | 2015-02-03 | 2023-07-05 | ETA SA Manufacture Horlogère Suisse | Isochronous clock resonator |
CH710692B1 (en) * | 2015-02-03 | 2021-09-15 | Eta Sa Mft Horlogere Suisse | Clockwork oscillator mechanism. |
CN108139712B (en) * | 2015-10-23 | 2020-10-13 | 里奇蒙特国际股份有限公司 | Oscillator for mechanical timepiece movement |
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EP3217227B1 (en) * | 2016-03-11 | 2019-02-27 | The Swatch Group Research and Development Ltd. | Timepiece regulator mechanism with optimised magnetic escapement |
-
2018
- 2018-04-25 EP EP18169314.4A patent/EP3561603B1/en active Active
- 2018-04-25 EP EP19159421.7A patent/EP3561604B1/en active Active
- 2018-04-25 EP EP19159418.3A patent/EP3561605B1/en active Active
-
2019
- 2019-03-19 JP JP2019050858A patent/JP6828073B2/en active Active
- 2019-03-26 US US16/364,853 patent/US11454933B2/en active Active
- 2019-04-24 CN CN201910334207.5A patent/CN110398893B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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FR1574359A (en) | 1967-08-02 | 1969-07-11 | ||
FR2928015A1 (en) | 2008-02-22 | 2009-08-28 | Jean Paul Lenoble | Tangential impulse pallet escapement device for mechanical watch, has escape wheel with teeth, pallet and two spiral-timed balance motors, and forks using driven force on ellipses of large plates in corresponding motors |
EP3128380A1 (en) | 2015-08-04 | 2017-02-08 | ETA SA Manufacture Horlogère Suisse | Watch regulator mechanism with magnetically synchronised rotary arms |
EP3206089A1 (en) | 2016-02-10 | 2017-08-16 | The Swatch Group Research and Development Ltd. | Timepiece resonator mechanism |
Also Published As
Publication number | Publication date |
---|---|
US20190332056A1 (en) | 2019-10-31 |
JP6828073B2 (en) | 2021-02-10 |
CN110398893B (en) | 2021-04-27 |
EP3561604B1 (en) | 2020-10-28 |
EP3561603B1 (en) | 2021-01-06 |
EP3561605B1 (en) | 2020-10-28 |
JP2019191156A (en) | 2019-10-31 |
EP3561603A1 (en) | 2019-10-30 |
CN110398893A (en) | 2019-11-01 |
EP3561605A1 (en) | 2019-10-30 |
US11454933B2 (en) | 2022-09-27 |
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