EP2690507A1 - Holorological hairspring - Google Patents
Holorological hairspring Download PDFInfo
- Publication number
- EP2690507A1 EP2690507A1 EP12178020.9A EP12178020A EP2690507A1 EP 2690507 A1 EP2690507 A1 EP 2690507A1 EP 12178020 A EP12178020 A EP 12178020A EP 2690507 A1 EP2690507 A1 EP 2690507A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- assembly
- watchmaking
- lip
- braking means
- pin
- 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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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
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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
- 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
- G04B17/04—Oscillators acting by spring tension
- G04B17/06—Oscillators with hairsprings, e.g. balance
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/20—Compensation of mechanisms for stabilising frequency
- G04B17/26—Compensation of mechanisms for stabilising frequency for the effect of variations of the impulses
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
- G04B17/325—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring in a fixed position, e.g. using a block
-
- 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
- G04B17/34—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring onto the balance
-
- 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
- G04B17/34—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring onto the balance
- G04B17/345—Details of the spiral roll
Definitions
- the invention relates to a watch assembly comprising at least one stud comprising means for fixing to a plate or a bridge, said assembly comprising at least one clockwork hairspring comprising at least one strand wound in turns between an inner end and an end. outer, said inner end attached to a ferrule being pivotally movable about a pivot axis, and said outer end being integral with said pin.
- the invention also relates to a watch movement comprising at least one such watch ensemble.
- the invention also relates to a timepiece comprising at least one such movement, and / or at least one such watch ensemble.
- the invention relates to the field of watchmaking mechanisms, and more particularly watch regulators.
- regulating bodies including the exhausts must meet several criteria called "security".
- security One of the safeties, the anti-gallop system, aims to prevent the angular extension of the balance beyond a normal angle of rotation.
- the technical problem is to design a safety mechanism, including anti-gallop, making a limitation of the pivot angle of a rocker during excessive acceleration, especially during shocks, especially for a detent escapement.
- Such an anti-gallop mechanism must be able to act in both directions of pivoting of the balance, that is to say both in extension and contraction of the spiral.
- One solution consists in modifying the geometry of the spiral by cooperating abutting studs of consecutive turns, so as to make some inactive turns, and thus change the stiffness of the hairspring and its response to pulses.
- Such a mechanism is known, capable of limiting the angular travel of the balance in both directions of pivoting, by the document EP 2 434 353 A1 in the name of WATCHES BREGUET SA, which describes a spiral anti-gallop by the hooking between them of notches belonging to consecutive turns, as well in contraction as in extension of the spiral.
- the present invention aims to improve safety, by disturbing only very slightly the inertia of the balance, and limiting its angular travel in both directions of rotation.
- the invention relates to a watch assembly comprising at least one stud comprising means for fixing to a plate or a bridge, said assembly comprising at least one watch winder comprising at least one strand wound in turns between one end. inner end and an outer end, said inner end attached to a ferrule being pivotally movable about a pivot axis, and said outer end being integral with said pin, characterized in that said pin or / and said ferrule comprises braking means arranged to cooperate with at least a first turn of said turns during accelerations in contraction or extension of said hairspring greater than set values, to modify the resulting rigidity of said hairspring when modifying its number of active turns by local coupling at least said first turn with said braking means.
- said watch assembly comprises a balance-balance assembly comprising at least one balance pivoting about said axis and to which is fixed said inner end or said outer end of said spiral, and the pivoting amplitude of said pendulum is less than 360 °.
- the invention also relates to a watch movement comprising at least one such watch ensemble.
- the invention also relates to a timepiece comprising at least one such movement, and / or at least one such watch ensemble.
- the invention relates to the field of watchmaking mechanisms, and more particularly watch regulators.
- the present invention aims to improve the safety of an oscillating mechanism or energy storage, comprising a spiral spring, including a balance spring-balance mechanism.
- the principle adopted is to modify the resulting stiffness of the spring in the event of a greater amplitude than normal, which can be caused by a shock or an impulse too large, when an incident occurs, under conditions of use which differ from the normal operation, especially during strong acceleration or shock.
- the modification of the rigidity of the hairspring may have other applications, and the present description, which relates to a preferred application of this invention to the anti-gallop system of an escapement mechanism, is in no way limiting.
- the application to a sprung-balance assembly aims to limit the angle of rotation of the balance in mechanical watches to a given value, especially for amplitudes greater than 360 °.
- the limitation of the angular stroke is in both directions of rotation and this without modifying the inertia of the balance.
- the sprung balance is said to be "free" during its normal angular stroke (compared to the anti-gallop system) in that it does not cause any shocks during the normal movement of the balance spring.
- the principle of the proposed system is based on a modification of the spiral geometry. During the extension or contraction of the hairspring due to the rotation of the balance, a relative angular and radial movement between the turns occurs.
- the watch assembly 1 described here has a stop system based on the absolute radial displacement of the hairspring 4. Its application relates to the first outer turns of the hairspring.
- the manufacture of such a spiral is based on micro-manufacturing processes allowing great freedom of planar design. It is possible to make such a spiral in silicon technology.
- the present invention is not limited to this technology, "LIGA" processes and other micro-manufacturing processes commonly used for timepiece components, and in particular exhaust mechanisms, are usable.
- the invention relates to a watch assembly 1. It comprises at least one stud 3, comprising fastening means to a plate 2 or a bridge.
- the assembly 1 comprises at least one watch winder 4, itself comprising at least one strand 5 wound in turns 6 between an inner end 7 and an outer end 8.
- the inner end 7 is fixed to a shell 9 and is pivotally movable about a pivot axis D, and the outer end 8 is integral with the stud 3.
- the stud 3 or / and the shell 9 comprises braking means 10.
- These means 10 are arranged to cooperate with at least a first turn 61, among the turns 6, during acceleration in contraction or extension. the spiral 4 above set values, to modify the resulting stiffness of the spiral 4.
- This change in rigidity results from the modification of the number of active turns of the spiral 4, by local coupling of at least this first turn 61 with the means It will be understood that the fact that one turn is coupled with another, or several others, for example the inner neighboring turn and / and the outer neighboring turn, annihilates the effect of this or these turns, and modifies the resulting features of the entire spiral 4.
- the pin 3 is, thus, a piton-stop, which acts, preferably, on the outer turn or the outer turns of the spiral 4. This stop is based on an absolute radial displacement of the spiral, when it comes to the turn the outermost of the spiral, in fact, the attachment of the spiral to the stud leaves little possibility of elongation spiral, and most of its deformation is radial with respect to the axis D.
- the braking means 10 are arranged to cooperate with complementary friction means 11 that comprises at least the first turn 61.
- the braking means or / and the friction means 11 can be arranged in different ways: surface state to strong roughness, surface coating with a high coefficient of friction, embossed or fluted or stamped surface of the hairspring 4, these economic embodiments being in no way limiting.
- the complementary friction means 11 consist of an embossed or fluted or stamped surface of the hairspring 4.
- the braking means 10 comprise at least one friction surface 14 arranged to cooperate with a complementary friction surface 15 that comprises the complementary friction means 11.
- the braking means 10 comprise at least one substantially helical concave friction track 12, which is arranged to receive the external part of at least one turn 6 during the extension of the latter during an acceleration at the set value.
- the braking means 10 comprise at least one substantially helical convex friction track 13, which is arranged to receive the inner part of at least one turn 6 during the contraction of the latter during an acceleration beyond of the set value.
- the stud 3 comprises at least a first inner lip 16 and at least a second outer lip 17 each having braking means 10.
- the watch unit 1 comprises a plate 2 carrying the pin 3, which plate 2 comprises at least a first inner lip 16 and at least a second outer lip 17 each having braking means 10.
- the ferrule 9 comprises at least a first inner lip 96 and at least a second outer lip 97 each having braking means 10.
- the invention is advantageously made for a watch assembly 1 comprising a balance 21 carrying the shell 9.
- the balance 21 comprises at least a first inner lip 96 and at least a second outer lip 97 each having braking means 10. This first inner lip 96 and this second outer lip 97 rotate with the balance 21, and for this purpose are secured, or the shell 9, or the balance 21 in the case where the shell 9 and the balance 21 are separate components.
- the stud 3 or / and the shell 9 carries a first inner lip 16, 96, bearing the convex friction track 13, or / and carries a second outer lip 17, 97, bearing the friction track concave 12.
- the stud 3 or / and the shell 9 are arranged to participate in the damping of a possible impact
- the stud 3 or / and the shell 9 carries at least a first inner lip 16, 96, and at the minus a second outer lip 17, 97, each having braking means 10, and the first inner lip 16, 96, or / and the second outer lip 17, 97, is flexible.
- the stud 3 carries at least a first inner lip 16 and at least a second outer lip 17, each having braking means 10, and the first inner lip 16 and / or the second outer lip 17 is pivoted by relative to the pin 3 or is fixed on a plate 18 pivoting relative to the pin 3.
- This pivoting assembly can be braked, either by friction, or preferably by the action of return of an elastic return means, spring or the like.
- each of these lips can conveniently be made to pivot by elastic flexion.
- first inner lip 16 and / or the second outer lip 17 is pivotable relative to the pin 3 or is fixed on a plate 18 pivoting relative to the pin 3.
- first inner lip 16 and / or the second outer lip 17 may be pivotally mounted relative to this plate 2.
- the pin 3 is fixed relative to a plate 2 that includes the assembly 1 or on which it is attached.
- the bolt 3 is fixed on a bolt carrier which is movable relative to a plate 2 that includes the assembly 1 or on which it is attached.
- the figures 3 and 5 show an assembly 1, where means 10 are arranged both facing the innermost coil 7 and the outermost turn 8 of the spiral 4.
- the numbering of the first turn 61 is retained in each case: this first turn 61, which is in fact a local fraction of turn, is a part of the spiral 4 which plays a particular role during a shock, which is why the numbering is identical, despite different positioning.
- the invention also relates to a watch assembly 1, which comprises a sprung-balance assembly 20 comprising at least one rocker 21 pivoting about the axis D and to which is fixed by such a shell 9 the inner end 7 of a spiral 4 and, according to the invention, the pivoting amplitude of the balance 21 is less than 360 °.
- the stud 3 and the spiral 4 form a one-piece assembly made of micro-machinable material.
- the spiral 4 then has at its inner end 7 such a ferrule 9 for attachment to a balance shaft.
- pin and spiral can be made in the same single layer.
- the stud 3 and the spiral 4 and a rocker 21 form a one-piece assembly made of micro-machinable material.
- This one-piece assembly may in particular be made, in no way limiting, from an SOI wafer comprising two silicon layers, one for the balance 21, and the other for the peak 3 and the spiral 4, separated by a oxide layer corresponding to the necessary functional clearance between the balance spring and the balance. It can also be achieved with three silicon layers separated by two oxide layers, the intermediate silicon layer and the two oxide layers together defining the value of this functional set.
- each hairspring is surrounded by a pin having abutment limiting surfaces as described above.
- the invention also relates to a watch movement 30 comprising at least one such watch ensemble 1.
- the invention also relates to a timepiece 40 comprising at least one such movement 30, or / and at least one such watch ensemble 1.
- the system has the advantage of limiting the travel of the balance in both directions of rotation. This limitation is made by modifying the rigidity of the hairspring. This modification of the rigidity can be adapted by the choice of the number and the distribution of the abutment surfaces incorporated in the spiral or in the stud or in the plate.
- the inertia of the balance spring system is modified only by the modification of the spiral inertia.
- the anti-gallop system does not disturb the normal oscillations of the sprung balance, it influences its operation only when exceeding the amplitude of rotation.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Springs (AREA)
- Micromachines (AREA)
- Pivots And Pivotal Connections (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
Description
L'invention concerne un ensemble horloger comportant au moins un piton comportant des moyens de fixation à une platine ou à un pont, ledit ensemble comportant au moins un spiral d'horlogerie comportant au moins un brin enroulé en spires entre une extrémité intérieure et une extrémité extérieure, ladite extrémité intérieure fixée à une virole étant mobile en pivotement autour d'un axe de pivotement, et ladite extrémité extérieure étant solidaire dudit piton.The invention relates to a watch assembly comprising at least one stud comprising means for fixing to a plate or a bridge, said assembly comprising at least one clockwork hairspring comprising at least one strand wound in turns between an inner end and an end. outer, said inner end attached to a ferrule being pivotally movable about a pivot axis, and said outer end being integral with said pin.
L'invention concerne encore un mouvement d'horlogerie comportant au moins un tel ensemble horloger.The invention also relates to a watch movement comprising at least one such watch ensemble.
L'invention concerne encore une pièce d'horlogerie comportant au moins un tel mouvement, ou/et au moins un tel ensemble horloger.The invention also relates to a timepiece comprising at least one such movement, and / or at least one such watch ensemble.
L'invention concerne le domaine des mécanismes d'horlogerie, et plus particulièrement des organes régulateurs de montres.The invention relates to the field of watchmaking mechanisms, and more particularly watch regulators.
Dans les montres mécaniques, les organes régulateurs, notamment les échappements doivent répondre à plusieurs critères dits « de sécurité ». Une des sécurités, le système anti-galop, vise à empêcher l'extension angulaire du balancier au-delà d'un angle normal de rotation.In mechanical watches, regulating bodies, including the exhausts must meet several criteria called "security". One of the safeties, the anti-gallop system, aims to prevent the angular extension of the balance beyond a normal angle of rotation.
Le problème technique est de concevoir un mécanisme de sécurité, notamment anti-galop, effectuant une limitation de l'angle de pivotement d'un balancier lors d'accélérations trop importantes, en particulier lors de chocs, notamment pour un échappement à détente. Un tel mécanisme anti-galop doit être capable d'agir dans les deux sens de pivotement du balancier, c'est-à-dire aussi bien en extension qu'en contraction du spiral.The technical problem is to design a safety mechanism, including anti-gallop, making a limitation of the pivot angle of a rocker during excessive acceleration, especially during shocks, especially for a detent escapement. Such an anti-gallop mechanism must be able to act in both directions of pivoting of the balance, that is to say both in extension and contraction of the spiral.
Une solution consiste en la modification de la géométrie du spiral par mise en coopération en butée d'ergots de spires consécutives, de façon à rendre certaines spires inactives, et, ainsi, à modifier la rigidité du spiral et sa réponse aux impulsions. On connaît un tel mécanisme, capable d'effectuer la limitation de la course angulaire du balancier dans les deux sens de pivotement, par le document
La présente invention vise à améliorer la sécurité, en ne perturbant que très faiblement l'inertie du balancier, et en limitant sa course angulaire dans les deux sens de rotation.The present invention aims to improve safety, by disturbing only very slightly the inertia of the balance, and limiting its angular travel in both directions of rotation.
A cet effet, l'invention concerne un ensemble horloger comportant au moins un piton comportant des moyens de fixation à une platine ou à un pont, ledit ensemble comportant au moins un spiral d'horlogerie comportant au moins un brin enroulé en spires entre une extrémité intérieure et une extrémité extérieure, ladite extrémité intérieure fixée à une virole étant mobile en pivotement autour d'un axe de pivotement, et ladite extrémité extérieure étant solidaire dudit piton, caractérisé en ce que ledit piton ou/et ladite virole comporte des moyens de freinage agencés pour coopérer avec au moins une première spire parmi lesdits spires lors d'accélérations en contraction ou en extension dudit spiral supérieures à des valeurs de consigne, pour modifier la rigidité résultante dudit spiral lors de la modification de son nombre de spires actives par couplage local d'au moins ladite première spire avec lesdits moyens de freinage.For this purpose, the invention relates to a watch assembly comprising at least one stud comprising means for fixing to a plate or a bridge, said assembly comprising at least one watch winder comprising at least one strand wound in turns between one end. inner end and an outer end, said inner end attached to a ferrule being pivotally movable about a pivot axis, and said outer end being integral with said pin, characterized in that said pin or / and said ferrule comprises braking means arranged to cooperate with at least a first turn of said turns during accelerations in contraction or extension of said hairspring greater than set values, to modify the resulting rigidity of said hairspring when modifying its number of active turns by local coupling at least said first turn with said braking means.
Selon une caractéristique de l'invention, ledit ensemble horloger comporte un ensemble balancier-spiral comportant au moins un balancier pivotant autour dudit axe et auquel est fixée ladite extrémité intérieure ou ladite extrémité extérieure d'un dit spiral, et l'amplitude de pivotement dudit balancier est inférieure à 360°.According to one characteristic of the invention, said watch assembly comprises a balance-balance assembly comprising at least one balance pivoting about said axis and to which is fixed said inner end or said outer end of said spiral, and the pivoting amplitude of said pendulum is less than 360 °.
L'invention concerne encore un mouvement d'horlogerie comportant au moins un tel ensemble horloger.The invention also relates to a watch movement comprising at least one such watch ensemble.
L'invention concerne encore une pièce d'horlogerie comportant au moins un tel mouvement, ou/et au moins un tel ensemble horloger.The invention also relates to a timepiece comprising at least one such movement, and / or at least one such watch ensemble.
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 ensemble horloger selon l'invention, comportant un spiral destiné à osciller autour d'un axe de pivotement, et attaché par son extrémité extérieure à un piton qui comporte des moyens de freinage agencés pour modifier la rigidité résultante du spiral en cas d'amplitude supérieure à la normale, pouvant être provoquée par un choc ou par une impulsion trop grande, quand une spire du spiral vient en contact avec ces moyens de freinage ; ces derniers sont figurés dans une variante où le piton comporte une lèvre intérieure et une lèvre extérieure, comportant chacune une piste de frottement respectivement convexe et concave ; - la
figure 2 représente, de façon schématisée et analogue à lafigure 1 , une autre variante d'ensemble horloger où des moyens de freinage similaires sont agencés à proximité de la spire intérieure du spiral, solidaires d'une virole de fixation à un balancier ; - la
figure 3 représente, de façon schématisée, la combinaison des réalisations desfigures 1 et 2 ; - la
figure 4 représente, de façon schématisée et analogue à lafigure 1 , un détail d'une autre variante où le ressort-spiral comporte des moyens complémentaires de friction tels qu'un gaufrage du spiral, destinés à coopérer avec des surfaces de friction avec relief que compotent une lèvre intérieure et une lèvre extérieure ; - la
figure 5 représente, sous forme d'un schéma-blocs, une pièce d'horlogerie, notamment une montre, comportant un mouvement lequel inclut un ensemble-horloger selon la variante de lafigure 3 , et où le spiral est attaché à son extrémité intérieure, par une virole, à un balancier.
- the
figure 1 represents schematically and in plan view, a watch assembly according to the invention, comprising a hairspring intended to oscillate about a pivot axis, and attached by its outer end to a pin which comprises braking means arranged to modifying the resulting stiffness of the hairspring in the event of a greater amplitude than normal, which can be caused by a shock or a large impulse, when a spiral turn comes into contact with these braking means; these are figured in a variant where the stud has an inner lip and an outer lip, each having a friction track respectively convex and concave; - the
figure 2 represents, in a schematic form and analogous to thefigure 1 another variant of a watch assembly in which similar braking means are arranged close to the inner coil of the spiral, integral with a ferrule for fastening to a rocker arm; - the
figure 3 represents, in a schematic way, the combination of the achievements of theFigures 1 and 2 ; - the
figure 4 represents, in a schematic form and analogous to thefigure 1 a detail of another variant in which the spiral spring comprises complementary friction means such as an embossing of the spiral, intended to cooperate with friction surfaces with relief compotent an inner lip and an outer lip; - the
figure 5 represents, in the form of a block diagram, a timepiece, in particular a watch, comprising a movement which includes a watch assembly according to the variant of FIG.figure 3 , and where the spiral is attached to its inner end, by a ferrule, to a pendulum.
L'invention concerne le domaine des mécanismes d'horlogerie, et plus particulièrement des organes régulateurs de montres.The invention relates to the field of watchmaking mechanisms, and more particularly watch regulators.
La présente invention vise à améliorer la sécurité d'un mécanisme oscillant ou de stockage d'énergie, comportant un ressort spiral, notamment d'un mécanisme balancier-spiral.The present invention aims to improve the safety of an oscillating mechanism or energy storage, comprising a spiral spring, including a balance spring-balance mechanism.
Le principe retenu est de modifier la rigidité résultante du ressort en cas d'amplitude supérieure à la normale, pouvant être provoquée par un choc ou par une impulsion trop grande, lorsqu'un incident survient, dans des conditions d'utilisation qui diffèrent de la marche normale, et notamment lors de fortes accélérations ou d'un choc.The principle adopted is to modify the resulting stiffness of the spring in the event of a greater amplitude than normal, which can be caused by a shock or an impulse too large, when an incident occurs, under conditions of use which differ from the normal operation, especially during strong acceleration or shock.
La modification de la rigidité du spiral peut avoir d'autres applications, et la présente description, qui concerne une application préférée de cet invention au système anti-galop d'un mécanisme d'échappement, n'est nullement limitative.The modification of the rigidity of the hairspring may have other applications, and the present description, which relates to a preferred application of this invention to the anti-gallop system of an escapement mechanism, is in no way limiting.
L'application à un ensemble balancier-spiral a pour but de limiter l'angle de rotation du balancier, dans les montres mécaniques, à une valeur donnée, notamment pour des amplitudes supérieures à 360°. La limitation de la course angulaire s'effectue dans les deux sens de rotation et ceci sans modifier l'inertie du balancier. Le balancier-spiral est dit « libre » durant sa course angulaire normale (par rapport au système anti-galop) par le fait que celui-ci ne provoque aucun chocs lors du mouvement normal du balancier spiral.The application to a sprung-balance assembly aims to limit the angle of rotation of the balance in mechanical watches to a given value, especially for amplitudes greater than 360 °. The limitation of the angular stroke is in both directions of rotation and this without modifying the inertia of the balance. The sprung balance is said to be "free" during its normal angular stroke (compared to the anti-gallop system) in that it does not cause any shocks during the normal movement of the balance spring.
Le principe du système proposé repose sur une modification de la géométrie du spiral. Lors de l'extension ou contraction du spiral due à la rotation du balancier, un mouvement angulaire et radial relatif entre les spires se produit.The principle of the proposed system is based on a modification of the spiral geometry. During the extension or contraction of the hairspring due to the rotation of the balance, a relative angular and radial movement between the turns occurs.
Le système décrit ci-dessous limite, selon l'angle de rotation, et selon le mouvement des spires, le nombre de spires actives. La rigidité du spiral, en fonction de l'angle de rotation, peut donc être modifiée momentanément.The system described below limits, depending on the angle of rotation, and according to the movement of the turns, the number of active turns. The rigidity of the hairspring, depending on the angle of rotation, can therefore be changed momentarily.
L'ensemble horloger 1 décrit ici présente un système de butée basée sur le déplacement radial absolu du spiral 4. Son application concerne la ou les premières spires extérieures du spiral.The watch assembly 1 described here has a stop system based on the absolute radial displacement of the
Une conception soignée veille à équilibrer le centre de gravité du spiral. La géométrie, la répartition, position et nombre des surfaces de butée nécessitent une conception approfondie et ce présent document en résume uniquement le principe.A careful design ensures balance of the center of gravity of the spiral. The geometry, distribution, position and number of abutment surfaces require a thorough design and this document summarizes only the principle.
La fabrication d'un tel spiral repose sur des procédés de micro-fabrication permettant une grande liberté de design planaire. Il est possible de réaliser un tel spiral en technologie silicium. La présente invention ne se limite pas à cette technologie, les procédés « LIGA » et les autres procédés de micro-fabrication couramment utilisés pour les composants d'horlogerie, et en particulier de mécanismes d'échappement, sont utilisables..The manufacture of such a spiral is based on micro-manufacturing processes allowing great freedom of planar design. It is possible to make such a spiral in silicon technology. The present invention is not limited to this technology, "LIGA" processes and other micro-manufacturing processes commonly used for timepiece components, and in particular exhaust mechanisms, are usable.
L'invention concerne un ensemble horloger 1. II comporte au moins un piton 3, comportant des moyens de fixation à une platine 2 ou à un pont.The invention relates to a watch assembly 1. It comprises at least one
L'ensemble 1 comporte au moins un spiral d'horlogerie 4, comportant lui-même au moins un brin 5 enroulé en spires 6 entre une extrémité intérieure 7 et une extrémité extérieure 8. L'extrémité intérieure 7 est fixée à une virole 9 et est mobile en pivotement autour d'un axe de pivotement D, et l'extrémité extérieure 8 est solidaire du piton 3.The assembly 1 comprises at least one
Selon l'invention, le piton 3 ou/et la virole 9 comporte des moyens de freinage 10. Ces moyens 10 sont agencés pour coopérer avec au moins une première spire 61, parmi les spires 6, lors d'accélérations en contraction ou en extension du spiral 4 supérieures à des valeurs de consigne, pour modifier la rigidité résultante du spiral 4. Cette modification de rigidité résulte de la modification du nombre de spires actives du spiral 4, par couplage local d'au moins cette première spire 61 avec les moyens de freinage 10. On comprend que le fait qu'une spire soit couplée avec une autre, ou plusieurs autres, par exemple la spire voisine intérieure ou/et la spire voisine extérieure, annihile l'effet de cette ou ces spires, et modifie les caractéristiques résultantes du spiral 4 tout entier.According to the invention, the
Le piton 3 est, ainsi, un piton-butée, qui agit, de préférence, sur la spire externe ou les spires externes du spiral 4. Cette butée est basée sur un déplacement radial absolu du spiral, quand il s'agit de la spire la plus externe du spiral, en effet, l'attache du spiral au piton laisse peu de possibilité d'élongation au spiral, et l'essentiel de sa déformation est radial par rapport à l'axe D.The
Dans une réalisation particulière, tel que visible sur la
Ainsi, dans une variante, les moyens complémentaires de friction 11 sont constitués par une surface gaufrée ou cannelée ou étampée du spiral 4.Thus, in a variant, the complementary friction means 11 consist of an embossed or fluted or stamped surface of the
Dans une autre variante, les moyens de freinage 10 comportent au moins une surface de friction 14 agencée pour coopérer avec une surface de friction complémentaire 15 que comportent les moyens complémentaires de friction 11.In another variant, the braking means 10 comprise at least one
Dans une variante avantageuse de réalisation visible à la
Dans une variante avantageuse de réalisation également visible à la
Dans une variante également illustrée par la
Dans une variante, l'ensemble horloger 1 comporte une platine 2 porteuse du piton 3, laquelle platine 2 comporte au moins une première lèvre interne 16 et au moins une deuxième lèvre externe 17 comportant chacune des moyens de freinage 10.In a variant, the watch unit 1 comprises a plate 2 carrying the
Dans la variante de la
L'invention est avantageusement réalisée pour un ensemble horloger 1 comportant un balancier 21 porteur de la virole 9. Selon cette variante, le balancier 21 comporte au moins une première lèvre interne 96 et au moins une deuxième lèvre externe 97 comportant chacune des moyens de freinage 10. Cette première lèvre interne 96 et cette deuxième lèvre externe 97 tournent avec le balancier 21, et, à cet effet, sont solidaires, ou de la virole 9, ou du balancier 21 dans le cas où la virole 9 et le balancier 21 sont des composants séparés.The invention is advantageously made for a watch assembly 1 comprising a
Dans ces réalisations à lèvres, avantageusement le piton 3 ou/et la virole 9 porte une première lèvre interne 16, 96, portant la piste de frottement convexe 13, ou/et porte une deuxième lèvre externe 17, 97, portant la piste de frottement concave 12.In these embodiments with lips, advantageously the
Dans une réalisation particulière où le piton 3 ou/et la virole 9 sont agencés pour participer à l'amortissement d'un choc éventuel, le piton 3 ou/et la virole 9 porte au moins une première lèvre interne 16, 96, et au moins une deuxième lèvre externe 17, 97, comportant chacune des moyens de freinage 10, et la première lèvre interne 16, 96, ou/et la deuxième lèvre externe 17, 97, est flexible.In a particular embodiment where the
Dans une réalisation particulière, le piton 3 porte au moins une première lèvre interne 16 et au moins une deuxième lèvre externe 17, comportant chacune des moyens de freinage 10, et la première lèvre interne 16 ou/et la deuxième lèvre externe 17 est pivotante par rapport au piton 3 ou est fixée sur une plaque 18 pivotante par rapport au piton 3. Ce montage pivotant peut être freiné, soit par friction, soit de préférence par l'action de rappel d'un moyen de rappel élastique, ressort ou similaire. Dans une exécution particulière en matériau micro-usinable, chacune de ces lèvres peut commodément être réalisée pivotante par flexion élastique.In a particular embodiment, the
Dans une variante autorisant un réglage, la première lèvre interne 16 ou/et la deuxième lèvre externe 17 est pivotante par rapport au piton 3 ou est fixée sur une plaque 18 pivotante par rapport au piton 3.In a variant allowing adjustment, the first
Dans la variante à platine, la première lèvre interne 16 ou/et la deuxième lèvre externe 17 peut être montée pivotante par rapport à cette platine 2.In the platinum variant, the first
Dans une variante, le piton 3 est fixe par rapport à une platine 2 que comporte le ensemble 1 ou sur laquelle il est rapporté.In a variant, the
Dans une autre variante, le piton 3 est fixé sur un porte-piton lequel est mobile par rapport à une platine 2 que comporte le ensemble 1 ou sur laquelle il est rapporté.In another variant, the
Les
L'invention concerne encore un ensemble horloger 1, qui comporte un ensemble balancier-spiral 20 comportant au moins un balancier 21 pivotant autour de l'axe D et auquel est fixée par une telle virole 9 l'extrémité intérieure 7 d'un spiral 4, et, selon l'invention, l'amplitude de pivotement du balancier 21 est inférieure à 360 °.The invention also relates to a watch assembly 1, which comprises a sprung-balance assembly 20 comprising at least one
Dans une variante particulière de réalisation, le piton 3 et le spiral 4 forment un ensemble monobloc réalisé en matériau micro-usinable. De préférence, le spiral 4 comporte alors à son extrémité intérieure 7 une telle virole 9 pour sa fixation à un arbre de balancier. Dans une telle réalisation, piton et spiral peuvent être réalisés dans une même couche unique.In a particular variant embodiment, the
Dans une autre variante particulière, le piton 3 et le spiral 4 et un balancier 21 forment un ensemble monobloc réalisé en matériau micro-usinable. Cet ensemble monobloc peut notamment être réalisé, de façon nullement limitative, à partir d'un wafer SOI comportant deux couches de silicium, l'une pour le balancier 21, et l'autre pour le piton 3 et le spiral 4, séparées par une couche d'oxyde correspondant au jeu fonctionnel nécessaire entre le spiral et le balancier. II peut encore être réalisé avec trois couches de silicium séparées par deux couches d'oxyde, la couche de silicium intermédiaire et les deux couches d'oxyde définissant alors, ensemble, la valeur de ce jeu fonctionnel.In another particular variant, the
Naturellement, l'invention est applicable au cas d'un balancier muni de plusieurs spiraux, ou l'inverse, le nombre de couches du wafer est alors modifié en conséquence. Avantageusement, quand par exemple deux spiraux sont disposés de part et d'autre d'un balancier médian, chaque spiral est entouré par un piton comportant des surfaces de limitation de butée telles que décrites ci-dessus.Naturally, the invention is applicable to the case of a balance provided with several spirals, or conversely, the number of layers of the wafer is then modified accordingly. Advantageously, when for example two spirals are arranged on either side of a median beam, each hairspring is surrounded by a pin having abutment limiting surfaces as described above.
L'invention concerne encore un mouvement d'horlogerie 30 comportant au moins un tel ensemble horloger 1.The invention also relates to a watch movement 30 comprising at least one such watch ensemble 1.
L'invention concerne encore une pièce d'horlogerie 40 comportant au moins un tel mouvement 30, ou/et au moins un tel ensemble horloger 1.The invention also relates to a timepiece 40 comprising at least one such movement 30, or / and at least one such watch ensemble 1.
Le système présente l'avantage de limiter la course du balancier dans les deux sens de rotation. Cette limitation est effectuée via la modification de la rigidité du spiral. Cette modification de la rigidité peut être adaptée par le choix du nombre et de la répartition des surfaces de butée incorporées dans le spiral ou dans le piton ou dans la platine.The system has the advantage of limiting the travel of the balance in both directions of rotation. This limitation is made by modifying the rigidity of the hairspring. This modification of the rigidity can be adapted by the choice of the number and the distribution of the abutment surfaces incorporated in the spiral or in the stud or in the plate.
L'inertie du système balancier-spiral n'est modifiée que par la modification de l'inertie du spiral. Le système anti-galop ne perturbe pas les oscillations normales du balancier-spiral, il n'influence sa marche que lors d'un dépassement d'amplitude de rotation.The inertia of the balance spring system is modified only by the modification of the spiral inertia. The anti-gallop system does not disturb the normal oscillations of the sprung balance, it influences its operation only when exceeding the amplitude of rotation.
Claims (21)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12178020.9A EP2690507B1 (en) | 2012-07-26 | 2012-07-26 | Holorological hairspring |
CN201380039611.0A CN104487905B (en) | 2012-07-26 | 2013-07-04 | Clock watch balance spring |
RU2015103386A RU2618739C2 (en) | 2012-07-26 | 2013-07-04 | Spring balance for clock |
PCT/EP2013/064108 WO2014016094A1 (en) | 2012-07-26 | 2013-07-04 | Horology hairspring |
JP2015516650A JP5938146B2 (en) | 2012-07-26 | 2013-07-04 | Clock spring |
KR1020157001346A KR101545470B1 (en) | 2012-07-26 | 2013-07-04 | Horology hairspring |
US14/406,772 US9164484B2 (en) | 2012-07-26 | 2013-07-04 | Sprung balance for a timepiece |
HK15109414.2A HK1208740A1 (en) | 2012-07-26 | 2015-09-24 | Horology hairspring |
JP2015237639A JP6085355B2 (en) | 2012-07-26 | 2015-12-04 | Clock spring |
Applications Claiming Priority (1)
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EP12178020.9A EP2690507B1 (en) | 2012-07-26 | 2012-07-26 | Holorological hairspring |
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EP2690507A1 true EP2690507A1 (en) | 2014-01-29 |
EP2690507B1 EP2690507B1 (en) | 2014-12-31 |
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Family Applications (1)
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EP12178020.9A Active EP2690507B1 (en) | 2012-07-26 | 2012-07-26 | Holorological hairspring |
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US (1) | US9164484B2 (en) |
EP (1) | EP2690507B1 (en) |
JP (2) | JP5938146B2 (en) |
KR (1) | KR101545470B1 (en) |
CN (1) | CN104487905B (en) |
HK (1) | HK1208740A1 (en) |
RU (1) | RU2618739C2 (en) |
WO (1) | WO2014016094A1 (en) |
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EP2908185A1 (en) * | 2014-02-17 | 2015-08-19 | The Swatch Group Research and Development Ltd. | Device for maintaining and adjusting a clock piece resonator |
CN104850000A (en) * | 2014-02-17 | 2015-08-19 | 斯沃奇集团研究和开发有限公司 | Frequency regulation of timepiece resonator, movement and timepiece including said movement |
EP2908184A1 (en) * | 2014-02-17 | 2015-08-19 | The Swatch Group Research and Development Ltd. | Method for maintaining and adjusting a clock piece resonator |
EP2908188A1 (en) * | 2014-02-17 | 2015-08-19 | The Swatch Group Research and Development Ltd. | Adjustment of a clock piece resonator by changing the rigidity of a resilient return means |
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EP3654111B1 (en) * | 2018-11-15 | 2022-02-16 | Nivarox-FAR S.A. | Method for measuring the torque of a clock hairspring and device for such method of measurement |
EP3719583B1 (en) * | 2019-04-03 | 2021-11-10 | ETA SA Manufacture Horlogère Suisse | Mechanical braking device for a clock mobile |
USD922893S1 (en) * | 2019-05-07 | 2021-06-22 | Nivarox-Far Sa | Watch component |
EP4009115A1 (en) * | 2020-12-02 | 2022-06-08 | Omega SA | Hairspring for timepiece resonator mechanism provided with a means for adjusting rigidity |
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EP2908185A1 (en) * | 2014-02-17 | 2015-08-19 | The Swatch Group Research and Development Ltd. | Device for maintaining and adjusting a clock piece resonator |
CN104850000A (en) * | 2014-02-17 | 2015-08-19 | 斯沃奇集团研究和开发有限公司 | Frequency regulation of timepiece resonator, movement and timepiece including said movement |
EP2908184A1 (en) * | 2014-02-17 | 2015-08-19 | The Swatch Group Research and Development Ltd. | Method for maintaining and adjusting a clock piece resonator |
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EP2908188A1 (en) * | 2014-02-17 | 2015-08-19 | The Swatch Group Research and Development Ltd. | Adjustment of a clock piece resonator by changing the rigidity of a resilient return means |
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EP2908191A3 (en) * | 2014-02-17 | 2015-09-02 | The Swatch Group Research and Development Ltd. | Adjustment of the frequency of a clock resonator by changing the rigidity of a resilient return means |
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CN105659168A (en) * | 2014-02-17 | 2016-06-08 | 斯沃奇集团研究和开发有限公司 | Method for servicing and regulating an horology resonator |
JP2016536578A (en) * | 2014-02-17 | 2016-11-24 | ザ・スウォッチ・グループ・リサーチ・アンド・ディベロップメント・リミテッド | Method for maintaining and adjusting a watch resonator |
CN104849993B (en) * | 2014-02-17 | 2017-07-14 | 斯沃奇集团研究和开发有限公司 | For safeguarding the device with adjusting timekeeper resonator |
CN104850000B (en) * | 2014-02-17 | 2017-07-28 | 斯沃奇集团研究和开发有限公司 | The method of clock and watch resonant frequency regulation, movement and include the clock and watch of the movement |
CN105659168B (en) * | 2014-02-17 | 2018-04-06 | 斯沃奇集团研究和开发有限公司 | For maintaining the method with adjusting timekeeper resonator |
RU2663089C1 (en) * | 2014-02-17 | 2018-08-01 | Те Свотч Груп Рисерч Энд Дивелопмент Лтд | Method for maintenance and control of clock resonator |
US10241473B2 (en) | 2014-02-17 | 2019-03-26 | The Swatch Group Research And Development Ltd | Method for maintaining and regulating a timepiece resonator |
US10324416B2 (en) | 2014-02-17 | 2019-06-18 | The Swatch Group Research And Development Ltd. | Method for maintaining and regulating the frequency of a timepiece resonator |
Also Published As
Publication number | Publication date |
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CN104487905B (en) | 2017-09-15 |
CN104487905A (en) | 2015-04-01 |
KR20150014536A (en) | 2015-02-06 |
KR101545470B1 (en) | 2015-08-25 |
EP2690507B1 (en) | 2014-12-31 |
JP2016075696A (en) | 2016-05-12 |
HK1208740A1 (en) | 2016-03-11 |
US20150153711A1 (en) | 2015-06-04 |
RU2618739C2 (en) | 2017-05-11 |
US9164484B2 (en) | 2015-10-20 |
JP2015519581A (en) | 2015-07-09 |
WO2014016094A1 (en) | 2014-01-30 |
JP5938146B2 (en) | 2016-06-22 |
RU2015103386A (en) | 2016-08-20 |
JP6085355B2 (en) | 2017-02-22 |
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