EP2031466A1 - Timepiece incorporating a striking mechanism - Google Patents

Timepiece incorporating a striking mechanism Download PDF

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Publication number
EP2031466A1
EP2031466A1 EP07115329A EP07115329A EP2031466A1 EP 2031466 A1 EP2031466 A1 EP 2031466A1 EP 07115329 A EP07115329 A EP 07115329A EP 07115329 A EP07115329 A EP 07115329A EP 2031466 A1 EP2031466 A1 EP 2031466A1
Authority
EP
European Patent Office
Prior art keywords
cam
minute
quarter
board
coaxial
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.)
Withdrawn
Application number
EP07115329A
Other languages
German (de)
French (fr)
Other versions
EP2031466A8 (en
Inventor
Alberto Papi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Girard Perregaux SA
Vaucher Manufacture Fleurier SA
Original Assignee
Girard Perregaux SA
Vaucher Manufacture Fleurier SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Girard Perregaux SA, Vaucher Manufacture Fleurier SA filed Critical Girard Perregaux SA
Priority to EP07115329A priority Critical patent/EP2031466A1/en
Priority to EP08803419A priority patent/EP2181363B1/en
Priority to JP2010522396A priority patent/JP2010538247A/en
Priority to PCT/EP2008/061431 priority patent/WO2009027526A1/en
Priority to CN2008801045642A priority patent/CN101815970B/en
Priority to US12/675,029 priority patent/US8174936B2/en
Publication of EP2031466A1 publication Critical patent/EP2031466A1/en
Publication of EP2031466A8 publication Critical patent/EP2031466A8/en
Priority to HK10107623.8A priority patent/HK1141337A1/en
Withdrawn legal-status Critical Current

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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
    • G04B21/04—Hour wheels; Racks or rakes; Snails or similar control mechanisms
    • 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
    • G04B21/12—Reiterating watches or clocks

Definitions

  • This kind of mechanism makes it possible to indicate, on demand, the hour to the minute, by means of blows struck by two hammers on two different stamps. They can also ring the hours and quarters.
  • the hammers are operated by lifts that are raised by a striking mechanism. This includes a room of hours, a quarter and a minute, with twelve, three and fourteen teeth respectively to ring the hours, quarters and minutes.
  • an hour cam is arranged on a star with twelve teeth, advancing one step per hour, while a quarter cam and another minutes can be adjusted on a burrow.
  • Three scales, each with a bucket cooperating with these cams, allow to determine the stroke of the parts of the hours, quarters and minutes and to adjust the number of shots sounded.
  • the minute cam is thus driven at a rate of one revolution per hour and comprises four arms, one for each quarter, each arm being provided with fifteen evenly distributed floors.
  • the object of the present invention is to provide a striking mechanism whose adjustment and implementation by the watchmaker is facilitated.
  • the invention relates to a timepiece in which the quarter cam and the minute cam are pivotally mounted and are free with respect to each other, and in which the minute cam is formed of a snail with a single row of 60 / N stages and intended to be driven by the movement at the rate of N revolutions per hour.
  • the quarter cam and the minute cam are pivotally mounted on two separate axes.
  • the energy transmitted by the movement to the cams is fed to a gear train coaxial with the minute cam, then transmitted to a gear train coaxial with the cam of the quarters and finally transmitted to a gear train coaxial with the cam hours.
  • the minute cam is coaxial with a board intended to transmit the energy received by the movement to the coaxial wheel to the cam of the quarters, the gear ratio between said board and said wheel being determined so that the quarter cam makes one turn per hour.
  • the driving force transmitted by the basic movement for driving the cams arrives at the cam system by a wheel 10 performing four revolutions per hour.
  • This wheel is integral with the first end of a shaft 12 which carries a board 14 provided with two fingers 15 diametrically opposed. More specifically, the board 14 is free to rotate on a bushing 16 frictionally mounted on the shaft 12.
  • the bush has a shoulder 17, in which is driven an index 18. This cooperates with the flange 19 of an opening which is provided with the board 14. The opening is larger than the index so as to allow a relative clearance between the board and the tree.
  • a washer 20 is driven on the shaft 12 so that the board is held between the shoulder 17 and the washer 20.
  • Complicated watches by F. Lecoultre, to Horlog Guatemala, which explains on pages 128-131 , how to size the stages of the cams. It would also be possible to use a cam whose radius variation would be continuous and which, therefore, would have no stage, but would simply be in spiral. In this case, to prevent a triggering of the ring occurs between two minutes, the cam can be driven in steps, for example by having a jumper at the drive system of the cam.
  • the minute cam 22 has only one row of stages forming what could be called a single arm, and does not have several arms. It is sufficient for the watchmaker who regulates the operation of the part, to make the adjustment for this single row.
  • the adjustment time is thus divided by four compared to a conventional mechanism.
  • a return 24 is pivotally mounted in the plane of the board 14. It is intended to be driven by the fingers 15.
  • a jumper spring 26 is arranged to cooperate with the toothing of the return 24 and help the return to complete its jump after having been pushed by one of the fingers 15. It thus understands the utility of the game between the index 18 and the board 14. Indeed, this game allows the board 14 to back without disturbing the action of the jumper 26 at the end of a jump and without modifying the position of the cam 22.
  • the minute cam is formed of a snail having a single row of 60 / N stages and intended to be driven by the movement at the rate of N turns per hour.
  • a gear 27 meshes with the gear 24.
  • the gear ratios, on the one hand, between the number of fingers that the board 14 has with respect to the toothing of the gear 24, and, on the other hand, between the teeth of the gear 24 and pinion 27, are determined so that the latter performs one revolution per hour.
  • the reference 24 and the pinion 27 each comprise eight teeth. Since the board 14 rotates at four revolutions per hour, the pinion 27 rotates one turn in one hour.
  • Pinion 27 is coaxial and integral with a cam of quarter 28 conventional type, which also performs one turn per hour.
  • a second board 30 is coaxially mounted and integral with the pinion 27 and the cam of the quarters 28.
  • the board 30 has a circular periphery, interrupted by a finger 32 extending beyond the circle defined by the board, in a direction substantially radial, the finger being bordered on both sides by a recess 33 going below this circle.
  • a drive wheel 34 is arranged to cooperate with the finger 32.
  • This wheel 34 has an opening 36 therethrough, and which defines a spring member 38, constituted by the wheel itself. More particularly, the opening 36 has a U-shape which leaves, between its branches, a portion of the wheel, dimensioned so as to have elastic properties and forming the spring 38.
  • the wheel 34 is mounted coaxially with a cam 40 hours of conventional type.
  • the cam 40 is free to rotate on the shaft of the wheel 34.
  • a pin 42 is fixed to the cam 40 and seats in the opening 36. It is capable of cooperating with the rim of the opening 36 or with the spring 38, thus forming an elastic connection between the cam 40 and the wheel 34, to secure the jump of the cam hours, as will be better understood below after reading the operation of the mechanism.
  • the hour cam 40 is driven by a driving and locking member arranged so as to provide a drive step of the hours cam and a blocking thereof between two successive steps.
  • the drive and locking member comprises the board 30 and the wheel 34. More specifically, the wheel 34 is provided with twelve notches 34a regularly distributed at its periphery and oriented in one direction. radial and defining 12 pads 34b. The notches 34a are dimensioned so that the finger 32 can be housed with a very small clearance. The end of the pads 34b has a curvature 34c conforming to the circular periphery of the board 30.
  • each pad 34b On each side of this curvature 34c, that is to say between the curvature 34c and each of the notches 34a, each pad 34b has a bevel 34d, oriented so that two bevels 34d arranged vis-à-vis, on either side of a notch 34a, form a guide member, funnel-shaped, tightening towards the notch 34a .
  • the centers of the board 30 and the wheel 34 are arranged so that the pads 34b are flush with the periphery of the board 30.
  • the finger can be inserted without being blocked by the walls of the notch 34a, the bevel 34d upstream cooperating with the upstream hollow 33. The finger can then push the wheel 34 and thus advance the snail 36.
  • the bevel 34d downstream cooperates with the hollow swallows, without blocking.
  • the length of the finger 32 and the depth of the notch 34a are determined so that the advance achieved by the thrust of the finger, allows the latter, the next turn, to cooperate with the next notch 34a.
  • the wheel 34 When the finger 32 is not in the notch 34a, the wheel 34 is locked in rotation, because the pad 34b is parallel to the periphery of the board 30 and can not take another position. Thus, when the finger 32 advances, its steps are precisely defined by the jumper 26. At each turn of the board 30, the wheel 34 and the cam 40 advance by jump and their position is perfectly defined, which guarantees the accuracy of the ring.
  • the cam of the quarter 28 and that of the hours 40 advance both by jump, but using only one jumper, which is favorable to the level of energy consumed by the mechanism.
  • the wheel 34 can advance and the cam 40 remain stationary abutting the drawer, which has the effect of arming the spring 38. Then, under the effect of the spring, the cam 40 can resume its normal position relative to the wheel 34, after the sender has returned at his rest position.
  • links, with or without play, between different elements, such as between the shaft 12 and the boards it carries, can be made by other means than those described, within the reach of the skilled person.
  • the drive wheel 34 By changing its rotational speed, the drive wheel 34 could be provided with a different number of notches, but multiple of twelve.
  • the quarter cam and the minute cam are pivotally mounted on two separate axes, these could also be coaxial without being rigidly connected to each other. other. They could be connected by a return system ensuring the gear ratio between the two cams.

Abstract

The timepiece has a current-time ringing mechanism comprising hour, quarter and minute cams (40, 28, 22) for respectively providing information about the hour, quarter and minutes of current time to hour, quarter and minute samplers. The cams are driven by a movement. The quarter and minute cams are pivotally mounted and free relative to each other. Energy transmitted by the movement to the cams is brought to a coaxial gear train at the minute cam. The energy is transmitted to coaxial gear trains of respective quarter and hour cams.

Description

Domaine techniqueTechnical area

La présente invention se rapporte au domaine de l'horlogerie mécanique. Plus particulièrement, elle concerne une pièce d'horlogerie comportant un mouvement et un mécanisme de sonnerie du temps courant comprenant :

  • une came des heures pour donner une information sur l'heure du temps courant à un puiseur des heures,
  • une came des quarts pour donner une information sur les quarts du temps courant à un puiseur des quarts,
  • une came des minutes pour donner une information sur les minutes du temps courant à un puiseur des minutes,
    les cames étant destinées à être entraînées par le mouvement.
The present invention relates to the field of mechanical watchmaking. More particularly, it relates to a timepiece comprising a movement and a striking mechanism of the current time comprising:
  • a cam of the hours to give an information on the time of the current time to a bitter hour,
  • a quarter cam to give quarter-time information to a quartermaster,
  • a minute cam to give information about the minutes of the current time to a minute brewer,
    the cams being intended to be driven by the movement.

Etat de la techniqueState of the art

Ce genre de mécanisme permet d'indiquer, sur demande, l'heure à la minute près, au moyen de coups frappés par deux marteaux sur deux timbres différents. Ils peuvent aussi permettre de sonner au passage les heures et les quarts. Les marteaux sont actionnés par des levées qui sont soulevées par un mécanisme de sonnerie. Celui-ci comprend une pièce des heures, une des quarts et une des minutes, dotées respectivement de douze, trois et quatorze dents pour sonner les heures, les quarts et les minutes.This kind of mechanism makes it possible to indicate, on demand, the hour to the minute, by means of blows struck by two hammers on two different stamps. They can also ring the hours and quarters. The hammers are operated by lifts that are raised by a striking mechanism. This includes a room of hours, a quarter and a minute, with twelve, three and fourteen teeth respectively to ring the hours, quarters and minutes.

Dans les mécanismes de sonnerie de l'état de la technique, afin de régler le déplacement de ces pièces, une came des heures est disposée sur une étoile à douze dents, avançant d'un pas par heure, tandis qu'une came des quarts et une autre des minutes peuvent être ajustées sur un tigeron. Trois bascules, dotées chacune d'un puiseur coopérant avec ces cames, permettent de déterminer la course des pièces des heures, des quarts et des minutes et d'ajuster le nombre de coups sonnés.In the ringing mechanisms of the state of the art, in order to adjust the movement of these parts, an hour cam is arranged on a star with twelve teeth, advancing one step per hour, while a quarter cam and another minutes can be adjusted on a burrow. Three scales, each with a bucket cooperating with these cams, allow to determine the stroke of the parts of the hours, quarters and minutes and to adjust the number of shots sounded.

On trouvera d'autres détails sur ce genre de complications, notamment sur la force motrice de la répétition ou sur l'étape de décrochement, c'est-à-dire sur le déclenchement de la sonnerie, dans le livre " Théorie de l'horlogerie" de Reymondin et al, Fédération des Ecoles Techniques, 1998, ISBN 2-940025-10-X, pages 219 à 224 .Further details on this kind of complications can be found, especially on the driving force of the repetition or on the step of recess, that is to say on the triggering of the ring, in the book " Theory of watchmaking " Reymondin et al, Federation of Technical Schools, 1998, ISBN 2-940025-10-X, pages 219-224 .

La came des minutes est ainsi entraînée à raison d'un tour par heure et comprend quatre bras, un pour chaque quart, chaque bras étant doté de quinze étages régulièrement répartis.The minute cam is thus driven at a rate of one revolution per hour and comprises four arms, one for each quarter, each arm being provided with fifteen evenly distributed floors.

C'est un exercice très difficile pour l'horloger que de régler les quatre bras de la came des minutes, de manière à ce que, sur chacun des étages, le mécanisme de sonnerie des minutes fonctionne correctement. En effet, en raison de la complexité d'un mécanisme de sonnerie, notamment de répétition à minutes, le puiseur des minutes présente, d'une pièce à l'autre, un jeu différent ou une position légèrement décalée, ce qui implique nécessairement, vu les dimensions des éléments, de régler individuellement chacun des étages. En outre, d'un bras à l'autre, le réglage doit évidemment être reproduit fidèlement, ce qui est très délicat.It is a very difficult exercise for the watchmaker to adjust the four arms of the minute cam, so that the minute striking mechanism works on each of the stages. Indeed, because of the complexity of a ringing mechanism, including repetition minutes, the minutes of the sampler present, from one room to another, a different game or a slightly shifted position, which necessarily implies, given the dimensions of the elements, to adjust individually each floor. In addition, from one arm to another, the adjustment must obviously be reproduced faithfully, which is very delicate.

Le but de la présente invention est de proposer un mécanisme de sonnerie dont le réglage et la mise en oeuvre par l'horloger est facilitée.The object of the present invention is to provide a striking mechanism whose adjustment and implementation by the watchmaker is facilitated.

Divulgation de l'inventionDisclosure of the invention

De façon plus précise, l'invention concerne une pièce d'horlogerie dans laquelle la came des quarts et la came des minutes sont montées pivotantes et sont libres l'une par rapport à l'autre, et dans laquelle la came des minutes est formée d'un limaçon comportant une seule rangée de 60/N étages et destiné à être entraîné par le mouvement à raison de N tours par heure.More specifically, the invention relates to a timepiece in which the quarter cam and the minute cam are pivotally mounted and are free with respect to each other, and in which the minute cam is formed of a snail with a single row of 60 / N stages and intended to be driven by the movement at the rate of N revolutions per hour.

Avantageusement, la came des quarts et la came des minutes sont montées pivotantes sur deux axes distincts.Advantageously, the quarter cam and the minute cam are pivotally mounted on two separate axes.

Selon un mode de réalisation préféré, l'énergie transmise par le mouvement aux cames est amenée à un rouage coaxial à la came des minutes, puis transmise à un rouage coaxial à la came des quarts et enfin, transmise à un rouage coaxial à la came des heures.According to a preferred embodiment, the energy transmitted by the movement to the cams is fed to a gear train coaxial with the minute cam, then transmitted to a gear train coaxial with the cam of the quarters and finally transmitted to a gear train coaxial with the cam hours.

De manière avantageuse, la came des minutes est coaxiale avec une planche destinée à transmettre l'énergie reçue par le mouvement au rouage coaxial à la came des quarts, le rapport d'engrenage entre ladite planche et ledit rouage étant déterminé de manière à ce que la came des quarts fasse un tour par heure.Advantageously, the minute cam is coaxial with a board intended to transmit the energy received by the movement to the coaxial wheel to the cam of the quarters, the gear ratio between said board and said wheel being determined so that the quarter cam makes one turn per hour.

La pièce d'horlogerie selon l'invention peut encore comporter l'une ou l'autre des caractéristiques suivantes :

  • N est égal à 4,
  • la planche entraîne un renvoi coopérant avec le rouage coaxial à la came des quarts, un sautoir agissant sur ledit renvoi ou sur ledit rouage pour positionner la came des quarts,
  • la planche et la came des minutes sont montées avec un jeu en rotation l'une en référence à l'autre.
The timepiece according to the invention may also include one or other of the following characteristics:
  • N is 4,
  • the board causes a return cooperating with the gear train coaxial with the cam quarters, a jumper acting on said return or on said wheel to position the cam quarters,
  • the board and the minute cam are mounted with a game in rotation one with reference to the other.

Brève description des dessinsBrief description of the drawings

D'autres caractéristiques de la présente invention apparaîtront plus clairement à la lecture de la description qui va suivre, faite en référence au dessin annexé, dans lequel les figures 1 et 2 sont respectivement des vues en coupe et de dessus des cames d'un mécanisme de sonnerie selon l'invention.Other features of the present invention will appear more clearly on reading the description which follows, made with reference to the appended drawing, in which the figures 1 and 2 are respectively views in section and from above of the cams of a striking mechanism according to the invention.

Mode(s) de réalisation de l'inventionMode (s) of realization of the invention

Dans l'exemple illustré, la force motrice transmise par le mouvement de base pour l'entraînement des cames arrive au système de cames par une roue 10 effectuant quatre tours par heure. Cette roue est montée solidaire de la première extrémité d'un arbre 12 qui porte une planche 14 munie de deux doigts 15 diamétralement opposés. De manière plus précise, la planche 14 est libre en rotation sur une douille 16 montée à friction sur l'arbre 12. La douille présente un épaulement 17, dans lequel est chassé un index 18. Celui-ci coopère avec le rebord 19 d'une ouverture dont est dotée la planche 14. L'ouverture est plus grande que l'index de manière à permettre un jeu relatif entre la planche et l'arbre. Pour maintenir axialement la planche 14, une rondelle 20 est chassée sur l'arbre 12 de sorte que la planche est maintenue entre l'épaulement 17 et la rondelle 20.In the illustrated example, the driving force transmitted by the basic movement for driving the cams arrives at the cam system by a wheel 10 performing four revolutions per hour. This wheel is integral with the first end of a shaft 12 which carries a board 14 provided with two fingers 15 diametrically opposed. More specifically, the board 14 is free to rotate on a bushing 16 frictionally mounted on the shaft 12. The bush has a shoulder 17, in which is driven an index 18. This cooperates with the flange 19 of an opening which is provided with the board 14. The opening is larger than the index so as to allow a relative clearance between the board and the tree. To maintain axially the board 14, a washer 20 is driven on the shaft 12 so that the board is held between the shoulder 17 and the washer 20.

Une came des minutes 22 formée d'un limaçon comportant une seule rangée de quinze étages, ressemblant à une came des heures conventionnelle, est montée solidaire sur la douille 16, à sa deuxième extrémité. On pourra se référer au livre " Les montres compliquées", de F. Lecoultre, aux Editions Horlogères, qui explique aux pages 128-131 , la manière de dimensionner les étages des cames. Il serait également possible d'utiliser une came dont la variation de rayon serait continue et qui, donc, ne comporterait pas d'étage, mais serait simplement en colimaçon. Dans ce cas, pour éviter qu'un déclenchement de la sonnerie se produise entre deux minutes, la came peut être entraînée par pas, par exemple en disposant un sautoir au niveau du système d'entraînement de la came.A minute cam 22 formed of a snail having a single row of fifteen stages, resembling a conventional hour cam, is mounted integral with the sleeve 16 at its second end. We will be able to refer to the book " Complicated watches ", by F. Lecoultre, to Horlogères, which explains on pages 128-131 , how to size the stages of the cams. It would also be possible to use a cam whose radius variation would be continuous and which, therefore, would have no stage, but would simply be in spiral. In this case, to prevent a triggering of the ring occurs between two minutes, the cam can be driven in steps, for example by having a jumper at the drive system of the cam.

Ainsi, selon un aspect important de l'invention, la came des minutes 22 ne comporte qu'une seule rangée d'étages formant ce que l'on pourrait appeler un bras unique, et ne comporte pas plusieurs bras. II suffit, pour l'horloger qui règle le fonctionnement de la pièce, d'effectuer le réglage pour cette seule rangée. Le temps de réglage est donc divisé par quatre par rapport à un mécanisme conventionnel.Thus, according to an important aspect of the invention, the minute cam 22 has only one row of stages forming what could be called a single arm, and does not have several arms. It is sufficient for the watchmaker who regulates the operation of the part, to make the adjustment for this single row. The adjustment time is thus divided by four compared to a conventional mechanism.

Un renvoi 24 est monté pivotant dans le plan de la planche 14. II est destiné à être entraîné par les doigts 15. Un ressort sautoir 26 est agencé pour coopérer avec la denture du renvoi 24 et aider le renvoi à terminer son saut après avoir été poussé par l'un des doigts 15. On comprend ainsi l'utilité du jeu entre l'index 18 et la planche 14. En effet, ce jeu permet à la planche 14 de reculer sans gêner l'action du sautoir 26 à la fin d'un saut et sans modifier la position de la came 22.A return 24 is pivotally mounted in the plane of the board 14. It is intended to be driven by the fingers 15. A jumper spring 26 is arranged to cooperate with the toothing of the return 24 and help the return to complete its jump after having been pushed by one of the fingers 15. It thus understands the utility of the game between the index 18 and the board 14. Indeed, this game allows the board 14 to back without disturbing the action of the jumper 26 at the end of a jump and without modifying the position of the cam 22.

Plus généralement, la came des minutes est formée d'un limaçon comportant une seule rangée de 60/N étages et destiné à être entraîné par le mouvement à raison de N tours par heure.More generally, the minute cam is formed of a snail having a single row of 60 / N stages and intended to be driven by the movement at the rate of N turns per hour.

Un pignon 27 engrène avec le renvoi 24. Les rapports d'engrenage, d'une part, entre le nombre de doigts que comporte la planche 14 relativement à la denture du renvoi 24, et, d'autre part, entre les dentures du renvoi 24 et du pignon 27, sont déterminés de manière à ce que ce dernier effectue un tour par heure. Selon l'exemple, le renvoi 24 et le pignon 27 comportent chacun huit dents. Etant donné que la planche 14 tourne à raison de quatre tours par heure, le pignon 27 pivote donc d'un tour en une heure. Le pignon 27 est coaxial et solidaire avec une came des quarts 28 de type conventionnel, qui effectue donc également un tour par heure.A gear 27 meshes with the gear 24. The gear ratios, on the one hand, between the number of fingers that the board 14 has with respect to the toothing of the gear 24, and, on the other hand, between the teeth of the gear 24 and pinion 27, are determined so that the latter performs one revolution per hour. According to the example, the reference 24 and the pinion 27 each comprise eight teeth. Since the board 14 rotates at four revolutions per hour, the pinion 27 rotates one turn in one hour. Pinion 27 is coaxial and integral with a cam of quarter 28 conventional type, which also performs one turn per hour.

Une deuxième planche 30 est montée coaxiale et solidaire du pignon 27 et de la came des quarts 28. La planche 30 présente un pourtour circulaire, interrompu par un doigt 32 s'étendant au-delà du cercle défini par la planche, dans une direction sensiblement radiale, le doigt étant bordé, de part et d'autre, par une creusure 33 allant en deçà de ce cercle.A second board 30 is coaxially mounted and integral with the pinion 27 and the cam of the quarters 28. The board 30 has a circular periphery, interrupted by a finger 32 extending beyond the circle defined by the board, in a direction substantially radial, the finger being bordered on both sides by a recess 33 going below this circle.

Une roue d'entraînement 34 est agencée de manière à coopérer avec le doigt 32. Cette roue 34 présente une ouverture 36 la traversant, et qui définit un organe ressort 38, constitué par la roue elle-même. Plus particulièrement, l'ouverture 36 a une forme de U qui laisse subsister, entre ses branches, une partie de la roue, dimensionnée de manière à présenter des propriétés élastiques et formant le ressort 38.A drive wheel 34 is arranged to cooperate with the finger 32. This wheel 34 has an opening 36 therethrough, and which defines a spring member 38, constituted by the wheel itself. More particularly, the opening 36 has a U-shape which leaves, between its branches, a portion of the wheel, dimensioned so as to have elastic properties and forming the spring 38.

La roue 34 est montée coaxiale avec une came des heures 40 de type classique. La came 40 est libre en rotation sur l'arbre de la roue 34. Une goupille 42 est fixée à la came 40 et prend place dans l'ouverture 36. Elle est susceptible de coopérer avec le rebord de l'ouverture 36 ou avec le ressort 38, formant ainsi une liaison élastique entre la came 40 et la roue 34, permettant de sécuriser le saut de la came des heures, comme on le comprendra mieux ci-après à la lecture du fonctionnement du mécanisme.The wheel 34 is mounted coaxially with a cam 40 hours of conventional type. The cam 40 is free to rotate on the shaft of the wheel 34. A pin 42 is fixed to the cam 40 and seats in the opening 36. It is capable of cooperating with the rim of the opening 36 or with the spring 38, thus forming an elastic connection between the cam 40 and the wheel 34, to secure the jump of the cam hours, as will be better understood below after reading the operation of the mechanism.

La came des heures 40 est entraînée par un organe d'entraînement et de blocage agencé de manière à assurer un entraînement par pas de la came des heures et un blocage de celle-ci entre deux pas successifs.The hour cam 40 is driven by a driving and locking member arranged so as to provide a drive step of the hours cam and a blocking thereof between two successive steps.

Dans le mode de réalisation représenté, l'organe d'entraînement et de blocage comprend la planche 30 et la roue 34. De manière plus précise, la roue 34 est dotée, de douze encoches 34a régulièrement réparties à sa périphérie et orientées selon une direction radiale et définissant 12 patins 34b. Les encoches 34a sont dimensionnées de manière à ce que le doigt 32 puisse y être logé avec un très faible jeu. L'extrémité des patins 34b présente une courbure 34c épousant le pourtour circulaire de la planche 30. De chaque côté de cette courbure 34c, c'est-à-dire entre la courbure 34c et chacune des encoches 34a, chaque patin 34b présente un biseau 34d, orienté de façon à ce que deux biseaux 34d disposés en vis-à-vis, de part et d'autre d'une encoche 34a, forment un organe de guidage, en forme d'entonnoir, se resserrant en direction de l'encoche 34a. Les centres de la planche 30 et de la roue 34 sont disposés de manière à ce que les patins 34b affleurent avec le pourtour de la planche 30.In the embodiment shown, the drive and locking member comprises the board 30 and the wheel 34. More specifically, the wheel 34 is provided with twelve notches 34a regularly distributed at its periphery and oriented in one direction. radial and defining 12 pads 34b. The notches 34a are dimensioned so that the finger 32 can be housed with a very small clearance. The end of the pads 34b has a curvature 34c conforming to the circular periphery of the board 30. On each side of this curvature 34c, that is to say between the curvature 34c and each of the notches 34a, each pad 34b has a bevel 34d, oriented so that two bevels 34d arranged vis-à-vis, on either side of a notch 34a, form a guide member, funnel-shaped, tightening towards the notch 34a . The centers of the board 30 and the wheel 34 are arranged so that the pads 34b are flush with the periphery of the board 30.

Grâce à la forme particulière de la roue 34 et de la planche 30, lorsque le pignon 27 est entraîné en rotation et que le doigt 32 se présente à l'entrée d'une encoche 34a, le doigt peut s'y insérer, sans être bloqué par les parois de l'encoche 34a, le biseau 34d amont coopérant avec la creusure amont 33. Le doigt peut alors pousser la roue 34 et ainsi faire avancer le limaçon 36. Lorsque le doigt sort de l'encoche 34a, le biseau 34d aval coopère avec la creusure avale, sans blocage. La longueur du doigt 32 et la profondeur de l'encoche 34a sont déterminées de manière à ce que l'avance réalisée par la poussée du doigt, permette à ce dernier, au tour suivant, de coopérer avec l'encoche 34a suivante. Lorsque le doigt 32 n'est pas dans l'encoche 34a, la roue 34 est bloquée en rotation, car le patin 34b est parallèle au pourtour de la planche 30 et ne peut prendre une autre position. Ainsi, lorsque le doigt 32 avance, ses pas sont définis avec précision par le sautoir 26. A chaque tour de la planche 30, la roue 34 et la came 40 avancent par saut et leur position est parfaitement définie, ce qui garantit l'exactitude de la sonnerie.Due to the particular shape of the wheel 34 and the board 30, when the pinion 27 is rotated and the finger 32 is at the entrance of a notch 34a, the finger can be inserted without being blocked by the walls of the notch 34a, the bevel 34d upstream cooperating with the upstream hollow 33. The finger can then push the wheel 34 and thus advance the snail 36. When the finger comes out of the notch 34a, the bevel 34d downstream cooperates with the hollow swallows, without blocking. The length of the finger 32 and the depth of the notch 34a are determined so that the advance achieved by the thrust of the finger, allows the latter, the next turn, to cooperate with the next notch 34a. When the finger 32 is not in the notch 34a, the wheel 34 is locked in rotation, because the pad 34b is parallel to the periphery of the board 30 and can not take another position. Thus, when the finger 32 advances, its steps are precisely defined by the jumper 26. At each turn of the board 30, the wheel 34 and the cam 40 advance by jump and their position is perfectly defined, which guarantees the accuracy of the ring.

Avantageusement, la came des quarts 28 et celle des heures 40 avancent toutes deux par saut, mais en n'utilisant qu'un seul sautoir, ce qui est favorable au niveau de l'énergie consommée par le mécanisme.Advantageously, the cam of the quarter 28 and that of the hours 40 advance both by jump, but using only one jumper, which is favorable to the level of energy consumed by the mechanism.

De plus, grâce à la liaison élastique entre la came 40 et la roue 34, si un saut se produit alors que le puiseur des heures est engagé sur l'étage le plus bas de la came 40, la roue 34 peut avancer et la came 40 rester immobile en butant contre le puiseur, ce qui a pour effet d'armer le ressort 38. Puis, sous l'effet du ressort, la came 40 pourra reprendre sa position normale relativement à la roue 34, après que le puiseur soit revenu à sa position de repos.In addition, thanks to the elastic connection between the cam 40 and the wheel 34, if a jump occurs while the hour sink is engaged on the lowest stage of the cam 40, the wheel 34 can advance and the cam 40 remain stationary abutting the drawer, which has the effect of arming the spring 38. Then, under the effect of the spring, the cam 40 can resume its normal position relative to the wheel 34, after the sender has returned at his rest position.

La description ci-dessus a été donnée à titre d'illustration non limitative de l'invention. Ainsi, notamment, les liaisons, avec ou sans jeu, entre les différents éléments, comme entre l'arbre 12 et les planches qu'il porte, peuvent être réalisés par d'autres moyens que ceux décrits, à la portée de l'homme du métier. En modifiant sa vitesse de rotation, la roue d'entraînement 34 pourrait être munie d'un nombre d'encoches différent, mais multiple de douze. Par ailleurs, bien que, dans le mode de réalisation décrit ci-dessus, la came des quarts et la came des minutes soient montées pivotantes sur deux axes distincts, celles-ci pourraient également être coaxiales sans être reliées rigidement l'une à l'autre. Elles pourraient être reliées par un système de renvoi assurant le rapport d'engrenage adéquat entre les deux cames.The above description has been given by way of non-limiting illustration of the invention. Thus, in particular, links, with or without play, between different elements, such as between the shaft 12 and the boards it carries, can be made by other means than those described, within the reach of the skilled person. By changing its rotational speed, the drive wheel 34 could be provided with a different number of notches, but multiple of twelve. Moreover, although, in the embodiment described above, the quarter cam and the minute cam are pivotally mounted on two separate axes, these could also be coaxial without being rigidly connected to each other. other. They could be connected by a return system ensuring the gear ratio between the two cams.

II est évidemment possible, sans effort particulier pour l'homme du métier, de monter une surprise de type conventionnel sur la came des minutes. La pièce appelée surprise a pour but de prolonger l'étage le plus haut au moment du saut de la planche 14, pour que le puiseur ne tombe pas sur l'étage le plus bas alors que l'heure à sonner est au début d'un quart.It is of course possible, without any particular effort for the person skilled in the art, to mount a surprise of the conventional type on the minute cam. The piece called surprise is intended to extend the highest floor at the jump of the board 14, so that the power does not fall on the lowest floor while the time to ring is at the beginning of A quarter.

Claims (7)

Pièce d'horlogerie comportant un mouvement et un mécanisme de sonnerie du temps courant comprenant - une came des heures (40) pour donner une information sur l'heure du temps courant à un puiseur des heures, - une came des quarts (28) pour donner une information sur les quarts du temps courant à un puiseur des quarts, - une came des minutes (22) pour donner une information sur les minutes du temps courant à un puiseur des minutes,
lesdites cames étant destinées à être entraînées par le mouvement, caractérisée en ce que la came des quarts (28) et la came des minutes (22) sont montées pivotantes et sont libres l'une par rapport à l'autre, et en ce que la came des minutes (22) est formée d'un limaçon comportant une seule rangée de 60/N étages et destinée à être entraînée par le mouvement à raison de N tours par heure.Timepiece comprising a movement and a striking mechanism of the current time comprising an hour cam (40) for giving information on the time of the current time to a hour counter, a quarter cam (28) for providing quarter-time information to a quartermaster; a minute cam (22) for giving information on the minutes of the current time to a minute tap,
said cams being intended to be driven by the movement, characterized in that the quarter cam (28) and the minute cam (22) are pivotally mounted and free relative to each other, and in that the minute cam (22) is formed of a snail with a single row of 60 / N stages and intended to be driven by the movement at the rate of N revolutions per hour. Pièce d'horlogerie selon la revendication 1, caractérisée en ce que ladite came des quarts (28) et ladite came des minutes (22) sont montées pivotantes sur deux axes distincts.Timepiece according to claim 1, characterized in that said quarter cam (28) and said minute cam (22) are pivotally mounted on two separate axes. Pièce d'horlogerie selon l'une des revendications 1 et 2, caractérisée en ce que l'énergie transmise par le mouvement auxdites cames est amenée à un rouage coaxial à la came des minutes, puis transmise à un rouage coaxial à la came des quarts et enfin, transmise à un rouage coaxial à la came des heures.Timepiece according to one of claims 1 and 2, characterized in that the energy transmitted by the movement to said cams is fed to a gear coaxial with the minute cam, and then transmitted to a gear train coaxial with the cam of the quarters and finally, transmitted to a coaxial cog in the hour cam. Pièce d'horlogerie selon la revendication 3, caractérisée en ce que la came des minutes est coaxiale avec une planche (14) destinée à transmettre l'énergie reçue par le mouvement au rouage coaxial à la came des quarts (28), le rapport d'engrenage entre ladite planche et ledit rouage étant déterminé de manière que la came des quarts fasse un tour par heure.Timepiece according to Claim 3, characterized in that the minute cam is coaxial with a board (14) intended to transmit the energy received by the movement to the gear train that is coaxial with the quarter cam (28). gearing between said board and said gear being determined so that the quarter cam makes one turn per hour. Pièce d'horlogerie selon l'une des revendications 1 à 4, caractérisée en ce que N est égal à 4.Timepiece according to one of claims 1 to 4, characterized in that N is equal to 4. Pièce d'horlogerie selon la revendication 4, caractérisé en ce que ladite planche (14) entraîne un renvoi (24) coopérant avec le rouage coaxial à la came des quarts, un sautoir (26) agissant sur ledit renvoi (24) ou sur ledit rouage pour positionner la came des quarts.Timepiece according to claim 4, characterized in that said board (14) causes a return (24) cooperating with the gear train coaxial with the cam quarters, a jumper (26) acting on said reference (24) or on said gear train to position the quarter cam. Pièces d'horlogerie selon la revendication 6, caractérisée en ce que ladite planche et ladite came des minutes sont montées avec un jeu en rotation l'une en référence à l'autre.Timepieces according to claim 6, characterized in that said board and said minute cam are mounted with a game in rotation one with reference to the other.
EP07115329A 2007-08-30 2007-08-30 Timepiece incorporating a striking mechanism Withdrawn EP2031466A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP07115329A EP2031466A1 (en) 2007-08-30 2007-08-30 Timepiece incorporating a striking mechanism
EP08803419A EP2181363B1 (en) 2007-08-30 2008-08-29 Timepiece with ringing mechanism
JP2010522396A JP2010538247A (en) 2007-08-30 2008-08-29 Timepiece with striking mechanism
PCT/EP2008/061431 WO2009027526A1 (en) 2007-08-30 2008-08-29 Timepiece with ringing mechanism
CN2008801045642A CN101815970B (en) 2007-08-30 2008-08-29 Timepiece with ringing mechanism
US12/675,029 US8174936B2 (en) 2007-08-30 2008-08-29 Timepiece with ringing mechanism
HK10107623.8A HK1141337A1 (en) 2007-08-30 2010-08-10 Timepiece with ringing mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07115329A EP2031466A1 (en) 2007-08-30 2007-08-30 Timepiece incorporating a striking mechanism

Publications (2)

Publication Number Publication Date
EP2031466A1 true EP2031466A1 (en) 2009-03-04
EP2031466A8 EP2031466A8 (en) 2009-06-17

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EP07115329A Withdrawn EP2031466A1 (en) 2007-08-30 2007-08-30 Timepiece incorporating a striking mechanism
EP08803419A Not-in-force EP2181363B1 (en) 2007-08-30 2008-08-29 Timepiece with ringing mechanism

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EP08803419A Not-in-force EP2181363B1 (en) 2007-08-30 2008-08-29 Timepiece with ringing mechanism

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US (1) US8174936B2 (en)
EP (2) EP2031466A1 (en)
JP (1) JP2010538247A (en)
CN (1) CN101815970B (en)
HK (1) HK1141337A1 (en)
WO (1) WO2009027526A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2107438A1 (en) * 2008-04-04 2009-10-07 Montres Journe S.A. Timepiece with minute repetition
CH700154B1 (en) * 2008-12-24 2014-03-14 Complitime Sa Timepiece including a pivot member.
CH703406B1 (en) * 2010-07-08 2015-04-30 Complitime Sa Timepiece including a striking mechanism.
EP2947523B1 (en) * 2014-05-21 2017-02-01 Blancpain SA. Melody selection mechanism for a timepiece with striking mechanism
EP3339976A1 (en) * 2016-12-23 2018-06-27 Blancpain SA Mechanical watch with repeater
EP3435174B1 (en) * 2017-07-25 2021-06-16 Blancpain SA Chime mode selector for watch or timepiece

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US587574A (en) * 1897-08-03 Repeating watch
US1421801A (en) * 1921-06-13 1922-07-04 Waltham Watch Co Repeater timepiece

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Publication number Priority date Publication date Assignee Title
US1556184A (en) * 1923-04-24 1925-10-06 Volpo Jacob Simple repeater mechanism for clocks and watches
CN86200194U (en) * 1986-01-09 1986-12-10 周建强 Mechanical time-giving clock
ATE395639T1 (en) * 2005-03-31 2008-05-15 Zenith Internat Sa REPEATING WATCH WITH A MINUTE REPEATING MECHANISM
EP1798610B1 (en) * 2005-12-14 2008-10-22 Montres Breguet S.A. Timepiece including a single-pawl striking mechanism

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US587574A (en) * 1897-08-03 Repeating watch
US1421801A (en) * 1921-06-13 1922-07-04 Waltham Watch Co Repeater timepiece

Also Published As

Publication number Publication date
EP2181363B1 (en) 2012-05-23
US8174936B2 (en) 2012-05-08
CN101815970B (en) 2012-05-09
CN101815970A (en) 2010-08-25
EP2031466A8 (en) 2009-06-17
JP2010538247A (en) 2010-12-09
HK1141337A1 (en) 2010-11-05
EP2181363A1 (en) 2010-05-05
US20110116348A1 (en) 2011-05-19
WO2009027526A1 (en) 2009-03-05

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