EP1408381A1 - Centrifugal governor of a striking mechanism, particularly in a timepiece - Google Patents

Centrifugal governor of a striking mechanism, particularly in a timepiece Download PDF

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Publication number
EP1408381A1
EP1408381A1 EP02079171A EP02079171A EP1408381A1 EP 1408381 A1 EP1408381 A1 EP 1408381A1 EP 02079171 A EP02079171 A EP 02079171A EP 02079171 A EP02079171 A EP 02079171A EP 1408381 A1 EP1408381 A1 EP 1408381A1
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EP
European Patent Office
Prior art keywords
plate
centrifugal
regulator
roller
regulator according
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02079171A
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German (de)
French (fr)
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EP1408381B1 (en
Inventor
Jean Remont
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Montres Breguet SA
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Montres Breguet SA
Nouvelle Lemania SA
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Application filed by Montres Breguet SA, Nouvelle Lemania SA filed Critical Montres Breguet SA
Priority to AT02079171T priority Critical patent/ATE438124T1/en
Priority to DE60233141T priority patent/DE60233141D1/en
Priority to EP02079171A priority patent/EP1408381B1/en
Publication of EP1408381A1 publication Critical patent/EP1408381A1/en
Application granted granted Critical
Publication of EP1408381B1 publication Critical patent/EP1408381B1/en
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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
    • G04B21/00—Indicating the time by acoustic means
    • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
    • G04B21/06—Details of striking mechanisms, e.g. hammer, fan governor

Definitions

  • the present invention relates to a centrifugal ring regulator, especially for a timepiece, comprising a turntable around its central axis and provided with two diametrically opposed training pads, a body stationary having an inner surface of revolution centered on said axis, and two flyweights mutually symmetrical with respect to said axis, engaged each respectively on one of the training pads and arranged to lean against the inner surface of the body under the effect of centrifugal force when the plate rotates.
  • a regulator of this kind can be used to limit the speed or rate of any mechanical buzzer driven by at least one rotary element, for example in a clock or a bell watch, whether of the type passing or repetition.
  • a regulator limits the speed primarily by friction.
  • the speed of the ringing is stabilized as soon as the regulator reaches a speed of rotation such that the friction produces on its axis an equal and opposite torque to the engine torque that it receives from the motor organ of the ringing.
  • Such a regulator has the disadvantage of undergoing wear which modifies the conditions friction during its service life and also produces waste that is likely to to affect the operation of the watch.
  • each counterweight is formed by a lever whose longest arm contains the center of gravity and whose Shortest arm carries a roller which leans rolling against a fixed central cylinder.
  • the wear of the regulator bodies is almost zero, given the low angular velocity of the rollers in contact with the central cylinder, which can be very small diameter. It can be deduced that a regulator constructed thus provides only one low torque resistant.
  • the present invention aims at creating a centrifugal regulator which avoids the disadvantages of the prior art, in particular by presenting little wear and tear while having good efficiency, with a size small enough to be incorporated into a shows.
  • centrifugal regulator of the kind indicated in preamble, characterized in that each weight leans against the surface interior of the body via at least one rotatably mounted roller on the flyweight and arranged to roll on said inner surface.
  • each counterweight comprises two of these rollers, which are spaced from each other in the direction of the circumference of the tray. More the angular spacing of these rollers is large, the greater the bearing force on each roller is large, for a given value of the centrifugal force exerted on the flyweight. This increases the friction, which allows to reduce the size of the regulator or the mass of each weight, for a given value of the torque resistant.
  • the watch 1 In the watch 1 partially shown in Figure 1, there are certain main elements of the watch movement, notably a spring-loaded cylinder 2 which driving a gear train 3 connected to a regulating system constituted here by a vortex 4.
  • the shows 1 also contains a ringtone type grand ring, with a 6 hour hammer, which strikes on a 7 hour stamp, and a hammer of minutes 8 which strikes on a minute stamp 9.
  • the hammers are operated from known manner from a mobile ring center 10 which is driven by the spring of a barrel 11 through an intermediate mobile 12.
  • a regulator centrifugal ring 14 is rotated from the center mobile 10 by a multiplier gear train 15, the last element of which is a wheel driver 16 which meshes with a pinion 17 of the regulator 14.
  • the elements of the centrifugal ring regulator 14 are represented more in detail in Figures 2 to 4.
  • the gear 17 of the regulator is made of a piece with a shaft 18 whose ends are pivotally mounted by stones 23 in a platinum 20 and a bridge 21, to rotate about a central axis 22 of the regulator.
  • a circular plate 24 is fixed to the pinion 17 and extends in a plane perpendicular to the shaft 22.
  • a regulator body 25 is fixed to the plate 20 by screws 26 and presents a cylindrical inner surface 27 whose diameter is slightly larger than the outer diameter of the plate 24. It will be noted that the body 25 could be formed by any fixed part of the watch, as for example according to the patent CH 604 237 cited above.
  • FIG. 2 and 3 show the rotating part of the centrifugal regulator shown in FIG. 2.
  • Two identical flyweights 30 are mounted movable on the turntable 24. It is provided with two training pads 31 occupying diametrically opposite positions on the board and each having a cylindrical barrel 32 which emerges from the upper face 33 of the plate. Each pad 31 is engaged with a lateral clearance 34 in a cylindrical hole 35 of the weight 30 corresponding, the diameter of the hole 35 being substantially greater than that of the barrel of the plot 31 to allow the flyweight to move on the plateau, at least in a radial direction of it.
  • each 30 has several localized spans such as 36, while a small gap 37 is formed between the remainder of its lower face and the plate 24 to avoid that the lubrication may stick the weight on the plate.
  • the weight is held up by a washer 38 driven on the shaft 18.
  • An interval 39 is provided between the two weights 30 to ensure freedom of sufficient displacement in the plane of the plate 24.
  • each weight has the shape of a segment of a circle that covers almost half of the plateau 24.
  • Two circular rollers 40 are rotatably mounted on each weight 30, each by means of a pin 41 driven into a corresponding hole the weight, the tenon having an enlarged head 42.
  • Each roller 40 is disposed in a recess 43 of the weight, so as to be substantially at the same level as the CG center of gravity of the flyweight.
  • Each roller 40 is made of a hard material, preferably a stone synthetic such as ruby.
  • a stone synthetic such as ruby.
  • the rollers 40 emerge slightly at the periphery of the weights 30 and are intended to lean against the inner surface 27 (Figure 2) of the body 25 of the regulator.
  • the sliding support of the pebbles 40 of synthetic stone on the studs 41 which are preferably made of steel, allows high contact pressures and great rotational speed with a moderate coefficient of friction, even without lubricant, of so that wear is almost zero at this point.
  • the rollers 40 could also be made of a suitable metal, for example cupro-beryllium.
  • the Weights can be made of any sufficiently dense material, by example in brass or gold.
  • the other elements of the regulator are realized in usual materials in the field of watchmaking.
  • a centrifugal regulator according to the invention can be used with any type of mechanical bell.

Abstract

The shaft (18) of the regulator which has bearings (23) is driven by a multiplying gear train (15,16). A plate (24) is attached to the shaft and drives two hemispherical weights (30) by means of pins (31). The weights each have two rollers made from a synthetic stone such as ruby which bear against the internal surface (27) of a cylinder (25) and stabilize the regulator speed

Description

La présente invention concerne un régulateur centrifuge de sonnerie, notamment pour une pièce d'horlogerie, comportant un plateau rotatif autour de son axe central et muni de deux plots d'entraínement diamétralement opposés, un corps fixe ayant une surface intérieure de révolution centrée sur ledit axe, et deux masselottes mutuellement symétriques par rapport audit axe, engagées chacune respectivement sur l'un des plots d'entraínement et agencées pour s'appuyer contre la surface intérieure du corps sous l'effet de la force centrifuge quand le plateau tourne.The present invention relates to a centrifugal ring regulator, especially for a timepiece, comprising a turntable around its central axis and provided with two diametrically opposed training pads, a body stationary having an inner surface of revolution centered on said axis, and two flyweights mutually symmetrical with respect to said axis, engaged each respectively on one of the training pads and arranged to lean against the inner surface of the body under the effect of centrifugal force when the plate rotates.

Un régulateur de ce genre est utilisable pour limiter la vitesse ou la cadence de toute sonnerie mécanique entraínée par au moins un élément rotatif, par exemple dans une horloge ou dans une montre à sonnerie, qu'elle soit du type en passant ou à répétition. Un tel régulateur limite la vitesse avant tout par friction. La vitesse de la sonnerie est stabilisée dès que le régulateur atteint une vitesse de rotation telle que les frottements produisent sur son axe un couple égal et opposé au couple moteur qu'il reçoit de l'organe moteur de la sonnerie.A regulator of this kind can be used to limit the speed or rate of any mechanical buzzer driven by at least one rotary element, for example in a clock or a bell watch, whether of the type passing or repetition. Such a regulator limits the speed primarily by friction. The speed of the ringing is stabilized as soon as the regulator reaches a speed of rotation such that the friction produces on its axis an equal and opposite torque to the engine torque that it receives from the motor organ of the ringing.

Par exemple dans le brevet CH 604 237, il est décrit une montre à répétition dont la sonnerie est entraínée par un ressort de barillet et stabilisée par un régulateur centrifuge du genre indiqué en préambule. Lorsque la sonnerie fonctionne, le plateau tourne et ses deux masselottes tentent à s'écarter l'une de l'autre et à frotter sur la paroi d'une ouverture circulaire d'un pont, produisant ainsi un effet de freinage.For example in the patent CH 604 237, there is described a repeating watch whose ringing is driven by a mainspring and stabilized by a regulator Centrifugal of the kind indicated in the preamble. When the ringtone works, the board turns and his two flyweights try to move away from each other and rub on the wall of a circular opening of a bridge, thus producing a braking effect.

Un tel régulateur a l'inconvénient de subir une usure qui modifie les conditions de friction au cours de sa durée de vie et produit en outre des déchets susceptibles d'affecter le fonctionnement de la montre.Such a regulator has the disadvantage of undergoing wear which modifies the conditions friction during its service life and also produces waste that is likely to to affect the operation of the watch.

Diverses tentatives ont été faites pour pallier ce problème d'usure en utilisant des corps roulants portés par le plateau ou les masselottes. Ainsi, selon le brevet CH 12249, le plateau comporte des rainures radiales contenant des billes qui roulent contre le corps du régulateur. Dans le brevet CH 14178, chaque masselotte est formée par un levier dont le bras le plus long contient le centre de gravité et dont le bras le plus court porte un galet qui s'appuie en roulant contre un cylindre central fixe. Selon ce brevet, l'usure des organes du régulateur est presque nulle, vu la faible vitesse angulaire des galets en contact avec le cylindre central, qui peut être de très petit diamètre. On peut en déduire qu'un régulateur construit ainsi ne fournit qu'un faible couple résistant. Ces solutions déjà anciennes n'ont pas pu s'imposer sur le marché, probablement par manque d'efficacité. Various attempts have been made to overcome this wear problem by using rolling bodies carried by the plate or the weights. So according to the patent CH 12249, the plate has radial grooves containing rolling balls against the body of the regulator. In patent CH 14178, each counterweight is formed by a lever whose longest arm contains the center of gravity and whose Shortest arm carries a roller which leans rolling against a fixed central cylinder. According to this patent, the wear of the regulator bodies is almost zero, given the low angular velocity of the rollers in contact with the central cylinder, which can be very small diameter. It can be deduced that a regulator constructed thus provides only one low torque resistant. These old solutions could not prevail on the probably because of lack of efficiency.

La présente invention vise à créer un régulateur centrifuge qui évite les inconvénients de l'art antérieur, notamment en présentant peu d'usure tout en ayant une bonne efficacité, avec une taille assez petite pour pouvoir être incorporé dans une montre.The present invention aims at creating a centrifugal regulator which avoids the disadvantages of the prior art, in particular by presenting little wear and tear while having good efficiency, with a size small enough to be incorporated into a shows.

A cet effet, il est prévu un régulateur centrifuge du genre indiqué en préambule, caractérisé en ce que chaque masselotte s'appuie contre la surface intérieure du corps par l'intermédiaire d'au moins un galet monté de manière rotative sur la masselotte et agencé pour rouler sur ladite surface intérieure.For this purpose, a centrifugal regulator of the kind indicated in preamble, characterized in that each weight leans against the surface interior of the body via at least one rotatably mounted roller on the flyweight and arranged to roll on said inner surface.

Ainsi, le corps du régulateur ne subit pratiquement pas de friction, puisque les masselottes ne le touchent pas et que les galets roulent contre lui. La friction s'effectue essentiellement au niveau du pivot portant chaque galet. On verra plus loin que l'usure peut être réduite pratiquement à zéro à cet endroit.Thus, the body of the regulator undergoes practically no friction, since the Weights do not touch him and the pebbles roll against him. Friction is essentially at the pivot bearing each roller. We'll see further that wear can be reduced to practically zero at this point.

De préférence, chaque masselotte comporte deux de ces galets, qui sont espacés l'un de l'autre dans la direction de la circonférence du plateau. Plus l'espacement angulaire de ces galets est grand, plus la force d'appui sur chaque galet est grande, pour une valeur donnée de la force centrifuge s'exerçant sur la masselotte. On augmente ainsi les frottements, ce qui permet de diminuer la taille du régulateur ou la masse de chaque masselotte, pour une valeur donnée du couple résistant.Preferably, each counterweight comprises two of these rollers, which are spaced from each other in the direction of the circumference of the tray. More the angular spacing of these rollers is large, the greater the bearing force on each roller is large, for a given value of the centrifugal force exerted on the flyweight. This increases the friction, which allows to reduce the size of the regulator or the mass of each weight, for a given value of the torque resistant.

D'autres caractéristiques et avantages de la présente invention apparaítront dans la description suivante d'un mode de réalisation préféré, présentée à titre d'exemple non limitatif en référence aux dessins annexés, dans lesquels :

  • la figure 1 représente les principaux éléments d'un mouvement de montre à sonnerie, vu du côté du cadran après enlèvement de la platine,
  • la figure 2 est une vue en coupe partielle suivant la ligne II-II de la figure 1, où on voit l'entier du régulateur de sonnerie,
  • la figure 3 est une vue de dessus de la partie tournante du régulateur de sonnerie, et
  • la figure 4 est une vue en coupe suivant la ligne IV-IV de la figure 3.
Other characteristics and advantages of the present invention will appear in the following description of a preferred embodiment, presented by way of non-limiting example with reference to the accompanying drawings, in which:
  • FIG. 1 represents the main elements of a striking watch movement, seen from the dial side after removal of the platen,
  • FIG. 2 is a partial sectional view along the line II - II of FIG. 1, where the whole of the striking regulator is seen,
  • FIG. 3 is a view from above of the rotating part of the ring regulator, and
  • Figure 4 is a sectional view along the line IV-IV of Figure 3.

Dans la montre 1 représentée partiellement à la figure 1, on reconnaít certains éléments principaux du mouvement d'horlogerie, notamment un barillet à ressort 2 qui entraíne un rouage 3 relié à un système réglant constitué ici par un tourbillon 4. La montre 1 contient en outre une sonnerie du type grande sonnerie, comportant un marteau des heures 6, qui frappe sur un timbre des heures 7, et un marteau des minutes 8 qui frappe sur un timbre des minutes 9. Les marteaux sont actionnés de manière connue à partir d'un mobile de centre de sonnerie 10 qui est entraíné par le ressort d'un barillet 11 par l'entremise d'un mobile intermédiaire 12. Un régulateur centrifuge de sonnerie 14 est entraíné en rotation à partir du mobile de centre 10 par un train d'engrenage multiplicateur 15, dont le dernier élément est une roue entraíneuse 16 qui s'engrène sur un pignon 17 du régulateur 14.In the watch 1 partially shown in Figure 1, there are certain main elements of the watch movement, notably a spring-loaded cylinder 2 which driving a gear train 3 connected to a regulating system constituted here by a vortex 4. The shows 1 also contains a ringtone type grand ring, with a 6 hour hammer, which strikes on a 7 hour stamp, and a hammer of minutes 8 which strikes on a minute stamp 9. The hammers are operated from known manner from a mobile ring center 10 which is driven by the spring of a barrel 11 through an intermediate mobile 12. A regulator centrifugal ring 14 is rotated from the center mobile 10 by a multiplier gear train 15, the last element of which is a wheel driver 16 which meshes with a pinion 17 of the regulator 14.

Les éléments du régulateur centrifuge de sonnerie 14 sont représentés plus en détail dans les figures 2 à 4. Le pignon 17 du régulateur est fait d'une pièce avec un arbre 18 dont les extrémités sont montées à pivot grâce à des pierres 23 dans une platine 20 et un pont 21, pour tourner autour d'un axe central 22 du régulateur. Un plateau circulaire 24 est fixé au pignon 17 et s'étend dans un plan perpendiculaire à l'axe 22. Un corps de régulateur 25 est fixé à la platine 20 par des vis 26 et présente une surface intérieure cylindrique 27 dont le diamètre est légèrement plus grand que le diamètre extérieur du plateau 24. On notera que le corps 25 pourrait être formé par n'importe quelle pièce fixe de la montre, comme par exemple selon le brevet CH 604 237 cité plus haut.The elements of the centrifugal ring regulator 14 are represented more in detail in Figures 2 to 4. The gear 17 of the regulator is made of a piece with a shaft 18 whose ends are pivotally mounted by stones 23 in a platinum 20 and a bridge 21, to rotate about a central axis 22 of the regulator. A circular plate 24 is fixed to the pinion 17 and extends in a plane perpendicular to the shaft 22. A regulator body 25 is fixed to the plate 20 by screws 26 and presents a cylindrical inner surface 27 whose diameter is slightly larger than the outer diameter of the plate 24. It will be noted that the body 25 could be formed by any fixed part of the watch, as for example according to the patent CH 604 237 cited above.

Les figures 2 et 3 représentent la partie rotative du régulateur centrifuge représenté à la figure 2. Deux masselottes identiques 30 sont montées de manière mobile sur le plateau rotatif 24. Celui-ci est muni de deux plots d'entraínement 31 occupant des positions diamétralement opposées sur le plateau et ayant chacun un fût cylindrique 32 qui émerge de la face supérieure 33 du plateau. Chaque plot 31 est engagé avec un jeu latéral 34 dans un trou cylindrique 35 de la masselotte 30 correspondante, le diamètre du trou 35 étant sensiblement supérieur à celui du fût du plot 31 afin de permettre à la masselotte de se déplacer sur le plateau, au moins dans une direction radiale de celui-ci. Pour glisser aisément sur le plateau 24, chaque masselotte 30 présente plusieurs portées localisées telles que 36, tandis qu'un petit intervalle 37 est ménagé entre le reste de sa face inférieure et le plateau 24 pour éviter que la lubrification risque de coller la masselotte sur le plateau. La masselotte est retenue vers le haut par une rondelle 38 chassée sur l'arbre 18. Un intervalle 39 est ménagé entre les deux masselottes 30 pour leur assurer une liberté de déplacement suffisante dans le plan du plateau 24. Ainsi, chaque masselotte a la forme d'un segment de cercle qui couvre presque la moitié du plateau 24.Figures 2 and 3 show the rotating part of the centrifugal regulator shown in FIG. 2. Two identical flyweights 30 are mounted movable on the turntable 24. It is provided with two training pads 31 occupying diametrically opposite positions on the board and each having a cylindrical barrel 32 which emerges from the upper face 33 of the plate. Each pad 31 is engaged with a lateral clearance 34 in a cylindrical hole 35 of the weight 30 corresponding, the diameter of the hole 35 being substantially greater than that of the barrel of the plot 31 to allow the flyweight to move on the plateau, at least in a radial direction of it. To slide easily on the plate 24, each 30 has several localized spans such as 36, while a small gap 37 is formed between the remainder of its lower face and the plate 24 to avoid that the lubrication may stick the weight on the plate. The weight is held up by a washer 38 driven on the shaft 18. An interval 39 is provided between the two weights 30 to ensure freedom of sufficient displacement in the plane of the plate 24. Thus, each weight has the shape of a segment of a circle that covers almost half of the plateau 24.

Deux galets circulaires 40 sont montés de manière rotative sur chaque masselotte 30, chacun au moyen d'un tenon 41 chassé dans un trou correspondant de la masselotte, le tenon ayant une tête élargie 42. Chaque galet 40 est disposé dans un évidement 43 de la masselotte, de façon à se trouver sensiblement au même niveau que le centre de gravité CG de la masselotte.Two circular rollers 40 are rotatably mounted on each weight 30, each by means of a pin 41 driven into a corresponding hole the weight, the tenon having an enlarged head 42. Each roller 40 is disposed in a recess 43 of the weight, so as to be substantially at the same level as the CG center of gravity of the flyweight.

Chaque galet 40 est fait d'un matériau dur, de préférence une pierre synthétique telle que le rubis. Dans l'exemple représenté dans les dessins, on employe des pierres du genre utilisé habituellement dans les paliers des mouvements d'horlogerie, en particulier avec un évidement concave 44 autour de leur trou central pour faciliter l'huilage, le cas échéant. Les galets 40 émergent légèrement à la périphérie des masselottes 30 et sont destinés à s'appuyer en roulant contre la surface intérieure 27 (figure 2) du corps 25 du régulateur.Each roller 40 is made of a hard material, preferably a stone synthetic such as ruby. In the example shown in the drawings, uses stones of the kind usually used in the bearings of the movements of timepieces, in particular with a concave recess 44 around their central hole to facilitate oiling, if necessary. The rollers 40 emerge slightly at the periphery of the weights 30 and are intended to lean against the inner surface 27 (Figure 2) of the body 25 of the regulator.

Quand la sonnerie est mise en action, la roue 16 entraínée à partir du barillet 11 applique un couple moteur au pignon 17, ce qui fait tourner l'arbre 18 et le plateau 24 autour de l'axe 22. Chaque masselotte 30 est entraínée dans cette rotation par le plot correspondant 31 du plateau et subit donc une force centrifuge FC qui la déplace radialement vers l'extérieur jusqu'à ce que ses deux galets 40 s'appuient en roulant contre la surface 27 du corps 25. Le frottement de chaque galet sur le tenon correspondant 41 freine la rotation du galet et induit, par friction sur la surface 27, une force tangentielle Ft qui s'oppose à la rotation du plateau 24. Les quatre forces Ft produisent, par rapport à l'axe 22, un couple résistant qui s'oppose au couple moteur. La vitesse de rotation du régulateur se stabilise lorsque le couple résistant est égal au couple moteur.When the ring is put into action, the wheel 16 driven from the barrel 11 applies a motor torque to the pinion 17, which rotates the shaft 18 and the plateau 24 about the axis 22. Each weight 30 is driven in this rotation by the corresponding pad 31 of the plate and therefore undergoes a centrifugal force FC which moves it radially outwardly until its two rollers 40 rest while rolling against the surface 27 of the body 25. The friction of each roller on the post corresponding 41 brakes the rotation of the roller and induces, by friction on the surface 27, a tangential force Ft which opposes the rotation of the plate 24. The four forces Ft produce, relative to the axis 22, a resistive torque which opposes the motor torque. The speed of rotation of the regulator stabilizes when the resistant torque is equal to engine couple.

Dans la figure 3, on voit que l'espacement des axes respectifs des deux galets 40 d'une masselotte 30 correspond à un angle A, qui est de 90° dans l'exemple représenté, par rapport à l'axe 22 du régulateur. Ainsi, le total des amplitudes des forces de réaction radiales Fr exercées sur les deux galets 40 par le corps 25 est plus grand que l'amplitude de la force centrifuge FC agissant au centre de gravité CG de la masselotte. Comme la force de réaction tangentielle Ft agissant sur chaque galet est proportionnelle à Fr, ceci signifie que plus l'angle A est grand, plus le couple de réaction du régulateur est fort. Autrement dit, espacer l'un de l'autre les deux galets 40 d'une masselotte permet soit d'augmenter le couple résistant du régulateur et donc diminuer sa vitesse maximale, soit de diminuer le diamètre du régulateur ou la masse de ses masselottes.In FIG. 3, it can be seen that the spacing of the respective axes of the two rollers 40 of a flyweight 30 corresponds to an angle A, which is 90 ° in the example shown, relative to the axis 22 of the regulator. Thus, the total of the amplitudes of radial reaction forces Fr exerted on the two rollers 40 by the body 25 is more great that the amplitude of the centrifugal force FC acting at the center of gravity CG of the flyweight. As the tangential reaction force Ft acting on each roller is proportional to Fr, this means that the larger the angle A, the greater the Regulator reaction is strong. In other words, space the two pebbles apart from each other 40 of a flyweight allows either to increase the resistant torque of the regulator and therefore decrease its maximum speed, ie decrease the diameter of the regulator or the mass of his weights.

L'appui glissant des galets 40 en pierre synthétique sur les tenons 41, qui sont de préférence en acier, permet des pressions de contact élevées et une grande vitesse de rotation avec un coefficient de friction modéré, même sans lubrifiant, de sorte que l'usure est quasi nulle à cet endroit. Les mêmes conditions prévalent pour le contact entre les galets 40 et le corps 25. On notera toutefois que les galets 40 pourraient aussi être faits d'un métal approprié, par exemple le cupro-béryllium. Les masselottes peuvent être faites de n'importe quel matériau suffisamment dense, par exemple en laiton ou en or. Les autres éléments du régulateur sont réalisés en matériaux usuels dans le domaine de l'horlogerie.The sliding support of the pebbles 40 of synthetic stone on the studs 41, which are preferably made of steel, allows high contact pressures and great rotational speed with a moderate coefficient of friction, even without lubricant, of so that wear is almost zero at this point. The same conditions prevail for the contact between the rollers 40 and the body 25. However, note that the rollers 40 could also be made of a suitable metal, for example cupro-beryllium. The Weights can be made of any sufficiently dense material, by example in brass or gold. The other elements of the regulator are realized in usual materials in the field of watchmaking.

La description qui précède montre que l'invention permet de réaliser un régulateur centrifuge de sonnerie ayant une construction simple et capable de fonctionner pratiquement sans usure, même sans lubrification, pendant une très longue durée de service. De plus, un tel régulateur produit très peu de vibrations et de bruit.The foregoing description shows that the invention makes it possible to realize a centrifugal ring regulator having a simple construction and capable of operate virtually without wear, even without lubrication, during a very long service life. In addition, such a regulator produces very little vibration and noise.

Selon une variante, on peut envisager d'avoir un seul galet 40 sur chaque masselotte 30, par exemple en supprimant le galet le plus éloigné du tenon 31 si l'on considère la figure 3, de façon que la force centrifuge FC produise une grande force Fr sur le galet restant grâce à un effet de levier. Toutefois, cela nécessite de renforcer notablement le pivot formé par le tenon 31.According to one variant, it is conceivable to have a single roller 40 on each 30, for example by removing the roller furthest from the pin 31 if one consider Figure 3, so that the centrifugal force FC produces a great force Fr on the remaining roller thanks to a leverage effect. However, this requires strengthening notably the pivot formed by the tenon 31.

Un régulateur centrifuge selon l'invention est utilisable avec tout type de sonnerie mécanique.A centrifugal regulator according to the invention can be used with any type of mechanical bell.

Claims (7)

Régulateur centrifuge de sonnerie, notamment pour une pièce d'horlogerie, comportant un plateau (24) rotatif autour de son axe central (22) et muni de deux plots d'entraínement (31) diamétralement opposés, un corps fixe (25) ayant une surface intérieure de révolution centrée sur ledit axe, et deux masselottes (30) mutuellement symétriques par rapport audit axe, engagées chacune respectivement sur l'un des plots d'entraínement et agencées pour s'appuyer contre la surface intérieure (27) du corps sous l'effet de la force centrifuge quand le plateau tourne,
   caractérisé en ce que chaque masselotte (30) s'appuie contre la surface intérieure (27) du corps par l'intermédiaire d'au moins un galet (40) monté de manière rotative sur la masselotte et agencé pour rouler sur ladite surface intérieure.Centrifugal ring regulator, in particular for a timepiece, comprising a plate (24) rotatable about its central axis (22) and provided with two diametrically opposed drive pads (31), a fixed body (25) having a inner surface of revolution centered on said axis, and two flyweights (30) mutually symmetrical with respect to said axis, each engaged respectively on one of the training pads and arranged to abut against the inner surface (27) of the body under the effect of the centrifugal force when the plate rotates,
characterized in that each weight (30) bears against the inner surface (27) of the body via at least one roller (40) rotatably mounted on the flyweight and arranged to roll on said inner surface. Régulateur centrifuge selon la revendication 1, caractérisé en ce que chaque masselotte (30) comporte deux desdits galets (40), qui sont espacés l'un de l'autre dans la direction de la circonférence du plateau.Centrifugal regulator according to claim 1, characterized in that each weight (30) comprises two of said rollers (40), which are spaced from each other in the direction of the circumference of the plate. Régulateur centrifuge selon la revendication 2, caractérisé en ce que chaque masselotte (30) est montée sur le plot d'entraínement (31) avec du jeu (34) au moins dans une direction radiale du plateau.Centrifugal regulator according to claim 2, characterized in that each weight (30) is mounted on the drive pad (31) with play (34) at least in a radial direction of the plate. Régulateur centrifuge selon la revendication 2, caractérisé en ce que l'espacement angulaire (A) des axes des deux galets d'une masselotte, par rapport au centre du plateau, vaut au moins 70 degrés, et de préférence au moins 90 degrés.Centrifugal regulator according to claim 2, characterized in that the angular spacing (A) of the axes of the two rollers of a flyweight, relative to the center of the plate, is at least 70 degrees, and preferably at least 90 degrees. Régulateur centrifuge selon l'une des revendications précédentes, caractérisé en ce que chaque galet (40) est monté de manière rotative sur une partie cylindrique d'un tenon (41) fixé au plateau (24), le galet étant fait d'un matériau plus dur que ledit tenon et ledit corps.Centrifugal regulator according to one of the preceding claims, characterized in that each roller (40) is rotatably mounted on a cylindrical portion of a pin (41) fixed to the plate (24), the roller being made of a material harder than said tenon and said body. Régulateur centrifuge selon l'une des revendications précédentes, caractérisé en ce que chaque galet (40) est en pierre synthétique, notamment en rubis synthétique.Centrifugal regulator according to one of the preceding claims, characterized in that each roller (40) is made of synthetic stone, in particular synthetic ruby. Régulateur centrifuge selon la revendication 1, caractérisé en ce que chaque plot d'entraínement (31) comporte un fût cylindrique (32) parallèle audit axe (22) et engagé avec un jeu latéral (34) dans un trou de la masselotte correspondante.Centrifugal regulator according to claim 1, characterized in that each drive pad (31) has a cylindrical shaft (32) parallel to said axis (22) and engaged with a lateral play (34) in a hole of the corresponding flyweight.
EP02079171A 2002-10-07 2002-10-07 Centrifugal governor of a striking mechanism, particularly in a timepiece Expired - Lifetime EP1408381B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT02079171T ATE438124T1 (en) 2002-10-07 2002-10-07 CENTRIFUGAL REGULATOR OF A BEAT MECHANISM, ESPECIALLY IN A CLOCK
DE60233141T DE60233141D1 (en) 2002-10-07 2002-10-07 Centrifugal regulator of a hammer mechanism, especially in a clock
EP02079171A EP1408381B1 (en) 2002-10-07 2002-10-07 Centrifugal governor of a striking mechanism, particularly in a timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02079171A EP1408381B1 (en) 2002-10-07 2002-10-07 Centrifugal governor of a striking mechanism, particularly in a timepiece

Publications (2)

Publication Number Publication Date
EP1408381A1 true EP1408381A1 (en) 2004-04-14
EP1408381B1 EP1408381B1 (en) 2009-07-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP02079171A Expired - Lifetime EP1408381B1 (en) 2002-10-07 2002-10-07 Centrifugal governor of a striking mechanism, particularly in a timepiece

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EP (1) EP1408381B1 (en)
AT (1) ATE438124T1 (en)
DE (1) DE60233141D1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008090041A1 (en) * 2007-01-15 2008-07-31 Vaucher Manufacture Fleurier S.A. Hour indicating ringing mechanism
US7527423B2 (en) 2004-04-15 2009-05-05 Montres Breguet Sa Watch comprising two tourbillons

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH14178A (en) * 1897-03-24 1897-10-15 Henri Sandoz Speed regulator for repeating watches
CH15833A (en) * 1898-01-07 1898-07-31 Ditisheim & Cie Brake-regulator for watch mechanisms
CH25658A (en) * 1902-04-02 1903-05-31 Mathey Tissot & Co E Speed regulator of the small gear of repeating watches
CH31197A (en) * 1904-07-29 1905-03-15 Le Coultre & Cie Silent moderator for the small gear of repeating watches

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH14178A (en) * 1897-03-24 1897-10-15 Henri Sandoz Speed regulator for repeating watches
CH15833A (en) * 1898-01-07 1898-07-31 Ditisheim & Cie Brake-regulator for watch mechanisms
CH25658A (en) * 1902-04-02 1903-05-31 Mathey Tissot & Co E Speed regulator of the small gear of repeating watches
CH31197A (en) * 1904-07-29 1905-03-15 Le Coultre & Cie Silent moderator for the small gear of repeating watches

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7527423B2 (en) 2004-04-15 2009-05-05 Montres Breguet Sa Watch comprising two tourbillons
WO2008090041A1 (en) * 2007-01-15 2008-07-31 Vaucher Manufacture Fleurier S.A. Hour indicating ringing mechanism
US7965584B2 (en) 2007-01-15 2011-06-21 Vaucher Manufacture Fleurier S.A. Hour indicating ringing mechanism

Also Published As

Publication number Publication date
DE60233141D1 (en) 2009-09-10
ATE438124T1 (en) 2009-08-15
EP1408381B1 (en) 2009-07-29

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