EP3502793A1 - Surprise mechanism - Google Patents

Surprise mechanism Download PDF

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Publication number
EP3502793A1
EP3502793A1 EP17209992.1A EP17209992A EP3502793A1 EP 3502793 A1 EP3502793 A1 EP 3502793A1 EP 17209992 A EP17209992 A EP 17209992A EP 3502793 A1 EP3502793 A1 EP 3502793A1
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EP
European Patent Office
Prior art keywords
surprise
jumper
snail
cam
spring
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.)
Granted
Application number
EP17209992.1A
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German (de)
French (fr)
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EP3502793B1 (en
Inventor
Christophe Bifrare
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Montres Breguet SA
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Montres Breguet SA
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Priority to EP17209992.1A priority Critical patent/EP3502793B1/en
Publication of EP3502793A1 publication Critical patent/EP3502793A1/en
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Publication of EP3502793B1 publication Critical patent/EP3502793B1/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
    • G04B21/04—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

  • the invention relates to the field of timepieces, and more specifically to a timepiece with striking ring comprising an insulator device arranged to hold the surprise jumper away from the surprise in the rest position.
  • timepieces capable of ringing the quarters and minutes comprise a retractable cam called “surprise”, which is associated with the minutes snail.
  • the end of each of the four branches of this snail must be narrowed to allow the minute feeler to reach the nearest rung of the center of the snail, when fourteen minutes must be sounded.
  • the outer rung of the snail which corresponds to zero minute of ringing, extends at an angle less than the normal value of 6 ° corresponding to the rotation of the center wheel in one minute.
  • the four branches of surprise serve to temporarily enlarge this step at the beginning of each quarter of an hour.
  • the jumper of surprise controls the pivoting of the surprise on the snail by leaning against the end of one of the branches of surprise.
  • surprise insulator devices which keep the jumper out of the surprise as long as the ringing of minutes is not required.
  • a surprise insulator at pages 175 to 181 of the third edition of F. Lecoultre's book entitled "Complicated watches”
  • This device is formed by an additional lever with two branches, one of which rests against the ringing command when the latter is at rest, so that the other branch during this time hold the distance surprise jumper surprise, against the force of the spring acting on the jumper.
  • the striking command acts on the one hand on the rack and on the other hand on the insulator of surprise.
  • the surprise insulator function requires a relatively large additional lever, which is troublesome in an already very complicated mechanism.
  • the present invention avoids this disadvantage through a very simple and compact construction.
  • An object of the present invention is to overcome all or part of the disadvantages mentioned above by providing a surprise mechanism that is simple to implement and comprises few parts.
  • the invention also aims, at least in a particular embodiment, to provide a surprise mechanism reducing the wear of the components.
  • the surprise insulator device is integral with the jumper of surprise and comprises a locking member arranged to cooperate with the hour room so as to keep the jumper away from the surprise when the hour room is in its potion of rest.
  • the invention also relates to a timepiece comprising a surprise mechanism according to the invention.
  • Mechanism 1 represented at figure 1 represents a first snail, said minute snail 3, with four branches and pivoted about an axis A.
  • a quarter snail 4 is also pivotally mounted coaxially around the axis A. Both are driven by a movement watchmaker at the rate of one turn per hour, in the opposite direction of clockwise.
  • the repetition of the present invention comprises levers mounted on the bridge side and not on the dial side.
  • a surprise 5 is positioned between the two snails 3 and 4 and pivots freely about the axis A.
  • the surprise 5 comprises, in a conventional manner, four branches, each being disposed behind one of the branches of the minute snail 3.
  • the snail of minutes 3 comprises two pins 30 which each rest in an oblong hole 31 formed in the surprise 5 and through which it drives it.
  • a spring blade 50 acting as a return spring is arranged in one of the branches of the surprise 5 so as to maintain the latter behind the minute snail 3, leaf spring being directly formed in surprise.
  • the spring blade 50 is arranged to cooperate with an anchor 51 integral with the minute snail 3, the peg 51 moving in a housing 52 formed at the base of one of the branches of the surprise 5, the free end of the spring blade 50 opening into the housing 52.
  • the surprise 5 is likely to move with respect to the snail minutes 3 between a first position in which it does not intervene in the operation of the ring and a second position in which it extends the end of the snail minutes 3, to restore the step corresponding to the first minute of a quarter.
  • the mechanism also includes a part of the hours 2 which is pivotally mounted on a bridge or plate.
  • a surprise jumper 8 is pivotally mounted on a bridge or a deck.
  • the jumper 8 is biased by a spring 6 which exerts a force against the jumper 8 to push it towards the surprise 5, the jumper having a spout 83 which has an inclined plane for rotating the surprise 5 against the force of the aforementioned return spring.
  • the jumper 8 visible in detail at the figure 4 and the surprise insulator device are integral and form the same monoblock element, surprise insulator device comprising locking means configured to maintain the spout 83 of the jumper 8 outside the trajectory of the surprise 5.
  • These locking means comprise a first cam 80, integral with the jumper 8 and also pivoting about the axis A. More specifically, the first cam 80 is arranged to cooperate with machining machined form in the room hours 2, and thus keeping the jumper 8 away from the surprise 5 when the room hours 2 is in the rest position. By position of rest, one understands position in which is the room of the hours 2 when the ringer is not engaged.
  • the jumper 8 also comprises a second cam 81 designed to cooperate with a spring 6 which is arranged to exert on the second cam 81, and therefore indirectly on the jumper 8, a force tending to bring the jumper 8 in abutment against the surprise 5.
  • the second cam 81 comprises a guide surface 82 for guiding the end 60 of the spring 6 and axially holding the jumper 8 in its place.
  • the first cam 80 is blocked by the machining 20 of the workpiece hours 2 and opposes the force exerted by the spring 6 and keeps the jumper 8 away from surprise 5.
  • the first cam 80 is released, under the effect of the rotation of the room hours 2, thus allowing the spring 6 to bring the jumper 8 against surprise 5 by exerting a force on the second cam 81.
  • the jumper 8 can move between a first lockable position, in which it does not cut the trajectory of the surprise 5, and at least a second position in which it intersects the trajectory of the surprise 5.
  • the jumper 8 is likely, in going from his first to his second position, cooperating with one of the extreme portions of the surprise to bring the latter from his first to his second position.
  • the hour star 7 advances one step per hour and causes the slug hours 22 mounted coaxially, the other parts shown remaining immobile until the ringing command is not actuated.
  • the first cam 80 disposed on the surprise jumper 8 is in engagement with the machining 20 of the workpiece hours 2 and keeps the jumper 8 away from the trajectory of the ends of the arms of 5. In this way, the first cam 80 and the machining 20 shape keep away the jumper.
  • the hours part 2 keeps the jumper 8 away from the surprise 5 via the first cam 80 which is blocked by the machining of the workpiece of the hours 2.
  • the jumper 8 is arranged to be driven in a plate (not shown in the figures) and comprises, at the end driven into the plate, an oriented loop 84 mounted so as to limit the stroke of the jumper 8 in the low position, the loop 84 cooperating with a pin 85 when one of the four branches of the minute snail is not present.
  • a surprise insulator device can also cooperate with a surprise associated with another snail, especially a quarter snail for example.
  • the invention can be used in any timepiece provided with a ring, including a minute repeater watch or large ring.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Adornments (AREA)
  • Toys (AREA)

Abstract

L'invention se rapporte à un mécanisme de surprise pour pièce d'horlogerie à sonnerie comprenant, un surprise montée coaxiale à un premier limaçon et à un deuxième limaçon, une pièce des heures reliée à une commande de sonnerie et agencée pour pivoter à partir d'une position de repos lorsque la commande est actionnée, un sautoir de surprise agencé pour s'appuyer contre la surprise sous l'effet d'un ressort pour faire pivoter la surprise par rapport au premier limaçon, et un dispositif isolateur de surprise agencé pour tenir le sautoir de surprise à l'écart de la surprise lorsque la pièce des heures est en position de repos. Selon l'invention, le dispositif isolateur de surprise est solidaire du sautoir et comprend un organe de verrouillage agencé pour coopérer avec la pièce des heures de manière à maintenir écarté le sautoir de la surprise lorsque la pièce des heures est dans sa potion de repos.The invention relates to a surprise mechanism for a striking timepiece comprising, a surprise mounted coaxial with a first snail and a second snail, an hour piece connected to a striking control and arranged to pivot from a a rest position when the control is actuated, a surprise jumper arranged to lean against the surprise under the effect of a spring to pivot the surprise relative to the first snail, and a surprise isolating device arranged to keep the surprise jumper away from surprise when the hour piece is in the rest position. According to the invention, the surprise isolating device is integral with the jumper and comprises a locking member arranged to cooperate with the hour piece so as to keep the jumper aside from the surprise when the hour piece is in its rest potion.

Description

Domaine de l'inventionField of the invention

L'invention concerne le domaine des pièces d'horlogerie, et plus précisément une pièce d'horlogerie à sonnerie comportant un dispositif isolateur de surprise agencé pour tenir le sautoir de surprise à l'écart de la surprise en position de repos.The invention relates to the field of timepieces, and more specifically to a timepiece with striking ring comprising an insulator device arranged to hold the surprise jumper away from the surprise in the rest position.

Arrière-plan de l'inventionBackground of the invention

De manière classique, les pièces d'horlogerie capables de sonner les quarts et les minutes comportent une came escamotable appelée "surprise", qui est associée au limaçon des minutes. L'extrémité de chacune des quatre branches de ce limaçon doit être rétrécie pour permettre au palpeur des minutes d'atteindre l'échelon le plus proche du centre du limaçon, quand quatorze minutes doivent être sonnées. Il en résulte que l'échelon extérieur du limaçon, qui correspond à zéro minute de sonnerie, s'étend sur un angle inférieur à la valeur normale de 6° correspondant à la rotation du mobile de centre en une minute. Les quatre branches de la surprise servent à agrandir temporairement cet échelon au début de chaque quart d'heure. Le sautoir de surprise commande le pivotement de la surprise sur le limaçon en s'appuyant contre l'extrémité d'une des branches de la surprise. Dans les anciennes pièces d'horlogerie, cet appui était continu durant les dernières minutes d'un quart d'heure et les premières minutes du quart d'heure suivant. Le frottement du sautoir sur la surprise pendant cette durée produisait une usure notable des pièces en contact et tendait à ralentir le mouvement d'horlogerie.Typically, timepieces capable of ringing the quarters and minutes comprise a retractable cam called "surprise", which is associated with the minutes snail. The end of each of the four branches of this snail must be narrowed to allow the minute feeler to reach the nearest rung of the center of the snail, when fourteen minutes must be sounded. As a result, the outer rung of the snail, which corresponds to zero minute of ringing, extends at an angle less than the normal value of 6 ° corresponding to the rotation of the center wheel in one minute. The four branches of surprise serve to temporarily enlarge this step at the beginning of each quarter of an hour. The jumper of surprise controls the pivoting of the surprise on the snail by leaning against the end of one of the branches of surprise. In the old timepieces, this support was continuous during the last minutes of a quarter of an hour and the first minutes of the quarter of an hour following. The friction of the jumper on the surprise during this time produced a significant wear of the parts in contact and tended to slow the clockwork movement.

Pour pallier cet inconvénient, on a inventé les dispositifs isolateurs de surprise, qui maintiennent le sautoir hors de prise de la surprise tant que la sonnerie des minutes n'est pas demandée. On trouve une description détaillée d'un exemple d'un isolateur de surprise aux pages 175 à 181 de la troisième édition du livre de F. Lecoultre intitulé "Les montres compliquées ". Ce dispositif est formé par un levier supplémentaire à deux branches, dont l'une s'appuie contre la commande de sonnerie lorsque celle-ci est au repos, pour que l'autre branche tienne pendant ce temps le sautoir de surprise à distance de la surprise, contre la force du ressort agissant sur le sautoir. La commande de sonnerie agit d'une part sur la pièce à crémaillère et d'autre part sur l'isolateur de surprise.To overcome this disadvantage, we invented surprise insulator devices, which keep the jumper out of the surprise as long as the ringing of minutes is not required. There is a description detailed example of a surprise insulator at pages 175 to 181 of the third edition of F. Lecoultre's book entitled "Complicated watches This device is formed by an additional lever with two branches, one of which rests against the ringing command when the latter is at rest, so that the other branch during this time hold the distance surprise jumper surprise, against the force of the spring acting on the jumper.The striking command acts on the one hand on the rack and on the other hand on the insulator of surprise.

Dans le brevet EP 1 959 318 , il est décrit un isolateur de surprise comportant aussi un levier supplémentaire, mais agencé différemment. Dans ce cas, l'un des bras du levier isolateur prend appui sur la pièce à crémaillère pour que le levier garde une position telle que son autre bras retienne le sautoir de surprise. La commande de sonnerie agit sur le premier bras pour faire pivoter le levier de façon à pousser la pièce à crémaillère et libérer pendant ce temps le sautoir de surprise. Par contre, dans ce mécanisme le palpeur des heures n'est pas monté sur la pièce à crémaillère.In the patent EP 1,959,318 , there is described a surprise insulator also having an additional lever, but arranged differently. In this case, one of the arm of the isolator lever is supported on the rack piece so that the lever maintains a position such that its other arm holds the surprise jumper. The ringer control acts on the first arm to pivot the lever so as to push the rack piece and release during this time the jumper surprise. By cons, in this mechanism the feeler hours is not mounted on the rack piece.

Dans les deux dispositifs susmentionnés, la fonction d'isolateur de surprise nécessite un levier supplémentaire relativement grand, qui est gênant dans un mécanisme déjà très compliqué. La présente invention permet d'éviter cet inconvénient grâce à une construction très simple et peu encombrante.In the two aforementioned devices, the surprise insulator function requires a relatively large additional lever, which is troublesome in an already very complicated mechanism. The present invention avoids this disadvantage through a very simple and compact construction.

Résumé de l'inventionSummary of the invention

Un but de la présente invention est de pallier tout ou partie des inconvénients cités précédemment en fournissant un mécanisme de surprise simple à mettre en oeuvre et comprenant peu de pièces.An object of the present invention is to overcome all or part of the disadvantages mentioned above by providing a surprise mechanism that is simple to implement and comprises few parts.

L'invention a également pour but, au moins dans un mode de réalisation particulier, de fournir un mécanisme de surprise réduisant l'usure des composants.The invention also aims, at least in a particular embodiment, to provide a surprise mechanism reducing the wear of the components.

A cet effet, l'invention concerne un mécanisme de surprise pour pièce d'horlogerie à sonnerie comprenant :

  • un surprise montée coaxiale entre un premier limaçon et un deuxième limaçon,
  • une pièce des heures reliée à une commande de sonnerie et agencée pour pivoter à partir d'une position de repos lorsque ladite commande est actionnée,
  • un sautoir de surprise agencé pour s'appuyer contre la surprise sous l'effet d'un ressort pour faire pivoter la surprise par rapport au premier limaçon,
  • et un dispositif isolateur de surprise agencé pour tenir le sautoir de surprise à l'écart de la surprise lorsque la pièce des heures est en position de repos.
For this purpose, the invention relates to a surprise mechanism for a timepiece comprising:
  • a coaxial climb surprise between a first snail and a second snail,
  • a part of the hours connected to a ringing command and arranged to pivot from a rest position when said command is actuated,
  • a jumper of surprise arranged to lean against the surprise under the effect of a spring to rotate the surprise compared to the first snail,
  • and a surprise insulator device arranged to hold the surprise jumper away from the surprise when the hour room is in the rest position.

Selon l'invention, le dispositif isolateur de surprise est solidaire du sautoir de surprise et comprend un organe de verrouillage agencé pour coopérer avec la pièce des heures de manière à maintenir écarté le sautoir de la surprise lorsque la pièce des heures est dans sa potion de repos.According to the invention, the surprise insulator device is integral with the jumper of surprise and comprises a locking member arranged to cooperate with the hour room so as to keep the jumper away from the surprise when the hour room is in its potion of rest.

Grâce à ces caractéristiques, un tel mécanisme de surprise permet de d'obtenir un système relativement simple, compact et nécessitant peu de pièces pour sa mise en oeuvre.Thanks to these characteristics, such a surprise mechanism makes it possible to obtain a relatively simple system that is compact and requires few parts for its implementation.

Conformément à d'autres variantes avantageuses de l'invention :

  • ledit organe de verrouillage comprend une première came solidaire dudit sautoir de surprise ;
  • la pièce des heures comprend un usinage de forme agencé pour coopérer avec ladite came ;
  • le sautoir comprend une deuxième came agencée pour coopérer avec le dit ressort ;
  • la deuxième came est solidaire du sautoir et comprend une surface agencée pour coopérer avec le ressort ;
  • le premier limaçon est un limaçon des minutes ;
  • le deuxième limaçon est un limaçon des heures ;
  • la surprise comprend un ressort agencé pour coopérer avec le premier limaçon et agencé pour maintenir la surprise dans sa position de repos ;
  • le sautoir de surprise comprend une ganse de façon à limiter la course du sautoir de surprise en position basse.
According to other advantageous variants of the invention:
  • said locking member comprises a first integral cam of said surprise jumper;
  • the hours part comprises a form of machining arranged to cooperate with said cam;
  • the jumper comprises a second cam arranged to cooperate with said spring;
  • the second cam is integral with the jumper and comprises a surface arranged to cooperate with the spring;
  • the first snail is a snail of minutes;
  • the second snail is a snail of the hours;
  • the surprise comprises a spring arranged to cooperate with the first snail and arranged to maintain the surprise in its rest position;
  • the surprise jumper includes a loop so as to limit the run of the surprise jumper in the down position.

Description sommaire des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de l'invention apparaîtront plus clairement à la lecture de la description suivante d'un mode de réalisation particulier de l'invention, donné à titre de simple exemple illustratif et non limitatif, et des figures annexées, parmi lesquelles :

  • la figure 1 est une vue en perspective d'un mécanisme au repos conforme à l'invention ;
  • les figures 2a et 2b sont respectivement des vues de dessus et de dessous conforme à l'invention ;
  • les figures 3a et 3b sont respectivement sont un vue en perspective et une vue de dessous d'un mécanisme activé conforme à l'invention ;
  • la figure 4 est une vue en perspective d'un sautoir de surprise conforme à l'invention ;
  • la figure 5 est une vue de dessus d'une surprise conforme à l'invention ;
  • la figure 6 est une vue de dessous d'un sautoir de surprise conforme à l'invention.
Other features and advantages of the invention will appear more clearly on reading the following description of a particular embodiment of the invention, given as a simple illustrative and nonlimiting example, and the appended figures, among which: :
  • the figure 1 is a perspective view of a rest mechanism according to the invention;
  • the Figures 2a and 2b are respectively views from above and from below according to the invention;
  • the Figures 3a and 3b are respectively a perspective view and a bottom view of an activated mechanism according to the invention;
  • the figure 4 is a perspective view of a jumper surprise according to the invention;
  • the figure 5 is a top view of a surprise according to the invention;
  • the figure 6 is a bottom view of a jumper surprise according to the invention.

L'invention concerne également une pièce d'horlogerie comprenant un mécanisme de surprise conforme à l'invention.The invention also relates to a timepiece comprising a surprise mechanism according to the invention.

Description détaillée des modes de réalisation préférésDetailed Description of the Preferred Embodiments

Un mécanisme de surprise conforme à l'invention va maintenant être décrit dans ce qui suit faisant référence conjointement aux figures 1 à 5. Le dispositif de sonnerie dans lequel il peut être intégré ne sera pas décrit en détail.A surprise mechanism according to the invention will now be described in the following with reference to Figures 1 to 5 . The ringing device in which it can be integrated will not be described in detail.

Le mécanisme 1 représenté à la figure 1 représente un premier limaçon, dit limaçon des minutes 3, doté de quatre branches et monté pivotant autour d'un axe A. Un limaçon des quarts 4 est également monté pivotant coaxialement autour de l'axe A. Tous les deux sont entraînés par un mouvement horloger au rythme d'un tour par heure, dans le sens inverse des aiguilles d'une montre. En effet, contrairement aux répétitions traditionnelles, la répétition de la présente invention comprend des leviers montés côté ponts et non côté cadran.Mechanism 1 represented at figure 1 represents a first snail, said minute snail 3, with four branches and pivoted about an axis A. A quarter snail 4 is also pivotally mounted coaxially around the axis A. Both are driven by a movement watchmaker at the rate of one turn per hour, in the opposite direction of clockwise. In fact, unlike traditional repetitions, the repetition of the present invention comprises levers mounted on the bridge side and not on the dial side.

Une surprise 5 est positionnée entre les deux limaçons 3 et 4 et pivote librement autour de l'axe A. La surprise 5 comporte, de manière classique, quatre branches, chacune étant disposée derrière une des branches du limaçon des minutes 3. Le limaçon des minutes 3 comprend deux goupilles 30 qui reposent chacune dans un trou oblong 31 formé dans la surprise 5 et par l'intermédiaire de laquelle il l'entraine.A surprise 5 is positioned between the two snails 3 and 4 and pivots freely about the axis A. The surprise 5 comprises, in a conventional manner, four branches, each being disposed behind one of the branches of the minute snail 3. The snail of minutes 3 comprises two pins 30 which each rest in an oblong hole 31 formed in the surprise 5 and through which it drives it.

Selon l'invention et tel qu'illustré à la figure 5, un lame ressort 50 faisant office de ressort de rappel est agencée dans l'une des branches de la surprise 5 de manière à maintenir cette dernière derrière le limaçon des minutes 3, lame ressort étant directement formée dans la surprise. La lame ressort 50 est agencé pour coopérer avec une cheville 51 solidaire du limaçon des minutes 3, la cheville 51 se déplaçant dans un logement 52 formé à la base d'une des branches de la surprise 5, l'extrémité libre de la lame ressort 50 débouchant dans le logement 52.According to the invention and as illustrated in figure 5 , a spring blade 50 acting as a return spring is arranged in one of the branches of the surprise 5 so as to maintain the latter behind the minute snail 3, leaf spring being directly formed in surprise. The spring blade 50 is arranged to cooperate with an anchor 51 integral with the minute snail 3, the peg 51 moving in a housing 52 formed at the base of one of the branches of the surprise 5, the free end of the spring blade 50 opening into the housing 52.

La surprise 5 est susceptible de se déplacer par rapport au limaçon des minutes 3 entre une première position dans laquelle elle n'intervient pas dans le fonctionnement de la sonnerie et une deuxième position dans laquelle elle prolonge l'extrémité du limaçon des minutes 3, de manière à reconstituer l'échelon correspondant à la première minute d'un quart.The surprise 5 is likely to move with respect to the snail minutes 3 between a first position in which it does not intervene in the operation of the ring and a second position in which it extends the end of the snail minutes 3, to restore the step corresponding to the first minute of a quarter.

Le mécanisme comprend également une pièce des heures 2 qui est montée de manière pivotante sur un pont ou une platine.The mechanism also includes a part of the hours 2 which is pivotally mounted on a bridge or plate.

Un sautoir de surprise 8 est monté de manière pivotante sur un pont ou une platine. Avantageusement, le sautoir 8 est sollicité par un ressort 6 qui exerce une force contre le sautoir 8 pour le pousser en direction de la surprise 5, le sautoir ayant un bec 83 qui présente un plan incliné servant à faire pivoter la surprise 5 contre la force du ressort de rappel susmentionné.A surprise jumper 8 is pivotally mounted on a bridge or a deck. Advantageously, the jumper 8 is biased by a spring 6 which exerts a force against the jumper 8 to push it towards the surprise 5, the jumper having a spout 83 which has an inclined plane for rotating the surprise 5 against the force of the aforementioned return spring.

Selon l'invention, le sautoir 8 visible en détail à la figure 4 et le dispositif isolateur de surprise sont solidaires et forme un même élément monobloc, dispositif isolateur de surprise comprenant des moyens de blocage configurés pour maintenir le bec 83 du sautoir 8 en dehors de la trajectoire de la surprise 5. Ces moyens de blocage comprennent une première came 80, solidaire du sautoir 8 et pivotant également autour de l'axe A. Plus précisément, la première came 80 est agencée pour coopérer avec un usinage de forme 20 usiné dans la pièce des heures 2, et maintenant ainsi le sautoir 8 éloigné de la surprise 5 lorsque la pièce des heures 2 est en position de repos. Par position de repos, on entend position dans laquelle se trouve la pièce des heures 2 lorsque la sonnerie n'est pas enclenchée.According to the invention, the jumper 8 visible in detail at the figure 4 and the surprise insulator device are integral and form the same monoblock element, surprise insulator device comprising locking means configured to maintain the spout 83 of the jumper 8 outside the trajectory of the surprise 5. These locking means comprise a first cam 80, integral with the jumper 8 and also pivoting about the axis A. More specifically, the first cam 80 is arranged to cooperate with machining machined form in the room hours 2, and thus keeping the jumper 8 away from the surprise 5 when the room hours 2 is in the rest position. By position of rest, one understands position in which is the room of the hours 2 when the ringer is not engaged.

Le sautoir 8 comprend également une deuxième came 81 prévue pour coopérer avec un ressort 6 qui est agencé pour exercer sur la deuxième came 81, et donc indirectement sur le sautoir 8, une force tendant à amener le sautoir 8 en appui contre la surprise 5. Avantageusement, La deuxième came 81 comprend une surface de guidage 82 pour guider l'extrémité 60 du ressort 6 et maintenir axialement le sautoir 8 à sa place.The jumper 8 also comprises a second cam 81 designed to cooperate with a spring 6 which is arranged to exert on the second cam 81, and therefore indirectly on the jumper 8, a force tending to bring the jumper 8 in abutment against the surprise 5. Advantageously, the second cam 81 comprises a guide surface 82 for guiding the end 60 of the spring 6 and axially holding the jumper 8 in its place.

Ainsi, tant que la sonnerie n'est pas activée, la première came 80 est bloquée par l'usinage de forme 20 de la pièce des heures 2 et s'oppose à la force exercée par le ressort 6 et maintien le sautoir 8 éloigné de de la surprise 5. Lorsque la sonnerie est enclenchée, la première came 80 est libérée, sous l'effet de la rotation de la pièce des heures 2, permettant ainsi au ressort 6 d'amener le sautoir 8 contre la surprise 5 en exerçant une force sur la deuxième came 81.Thus, as long as the buzzer is not activated, the first cam 80 is blocked by the machining 20 of the workpiece hours 2 and opposes the force exerted by the spring 6 and keeps the jumper 8 away from surprise 5. When the ring is engaged, the first cam 80 is released, under the effect of the rotation of the room hours 2, thus allowing the spring 6 to bring the jumper 8 against surprise 5 by exerting a force on the second cam 81.

Ainsi, le sautoir 8 peut évoluer entre une première position blocable, dans laquelle il ne coupe pas la trajectoire de la surprise 5, et au moins une deuxième position dans laquelle il coupe la trajectoire de la surprise 5. Le sautoir 8 est susceptible, en passant de sa première à sa deuxième position, de coopérer avec une des portions extrêmales de la surprise pour amener cette dernière de sa première à sa deuxième position.Thus, the jumper 8 can move between a first lockable position, in which it does not cut the trajectory of the surprise 5, and at least a second position in which it intersects the trajectory of the surprise 5. The jumper 8 is likely, in going from his first to his second position, cooperating with one of the extreme portions of the surprise to bring the latter from his first to his second position.

Dans la position de repos illustrée par les figures 1, 2a et 2b, l'étoile des heures 7 avance d'un pas par heure et entraine le limaçon des heures 22 monté coaxialement, les autres pièces représentées restant immobiles tant que la commande de sonnerie n'est pas actionnée. Dans cette position de repos, la première came 80 disposée sur le sautoir de surprise 8 est en prise avec l'usinage de forme 20 de la pièce des heures 2 et maintient le sautoir 8 à l'écart de la trajectoire des extrémités des bras de la surprise 5. De cette manière, la première came 80 et l'usinage de forme 20 permettent de maintenir à l'écart le sautoir.In the rest position illustrated by the Figures 1, 2a and 2b , the hour star 7 advances one step per hour and causes the slug hours 22 mounted coaxially, the other parts shown remaining immobile until the ringing command is not actuated. In this rest position, the first cam 80 disposed on the surprise jumper 8 is in engagement with the machining 20 of the workpiece hours 2 and keeps the jumper 8 away from the trajectory of the ends of the arms of 5. In this way, the first cam 80 and the machining 20 shape keep away the jumper.

Dans la position de repos représentée sur la figure 1, la pièce des heures 2 maintient le sautoir 8 éloigné de la surprise 5 via la première came 80 qui est bloquée par l'usinage de forme de la pièce des heures 2.In the rest position represented on the figure 1 the hours part 2 keeps the jumper 8 away from the surprise 5 via the first cam 80 which is blocked by the machining of the workpiece of the hours 2.

Lorsque la commande de sonnerie est actionnée comme aux figures 3a et 3b, la pièce des heures 2 est entraînée en rotation sous l'action d'un ressort par exemple. Au début de la rotation de la pièce de heures 2, la première came 80 est libérée et laisse le sautoir de surprise 8 pivoter en direction du limaçon des minutes 3 sous l'action du ressort 6 qui appuie sur la deuxième came 81. Si à ce moment-là l'une des branches du limaçon des minutes 3 se trouve à proximité d'un des pans inclinés du bec du sautoir 8, ce pan s'appuie contre la branche correspondante de la surprise 5 et met celle-ci dans la position appropriée, de manière connue. La pièce des heures 2 continue de pivoter jusqu'à ce que son palpeur 21 bute contre le limaçon des heures 22. Ensuite, le mécanisme représenté est ramené à la position de repos de la figure 1 par l'action du barillet de sonnerie. La première came 80 de l'isolateur de surprise soulève de nouveau le sautoir de surprise 8 et le tient à l'écart de la surprise 5 tant que la commande de sonnerie n'est pas actionnée à nouveau.When the ringing command is operated as Figures 3a and 3b the hours part 2 is rotated by the action of a spring for example. At the beginning of the rotation of the workpiece of hours 2, the first cam 80 is released and allows the surprise jumper 8 to pivot towards the minute snail 3 under the action of the spring 6 which presses the second cam 81. If at that moment one of the branches of the minute snail 3 is near one of the inclined sides of the beak of the jumper 8, this pan leans against the corresponding branch of the surprise 5 and puts it in the appropriate position, in a known manner. The room hours 2 continues to rotate until its probe 21 abuts against the snail hours 22. Then, the mechanism shown is returned to the rest position of the figure 1 by the action of the ringer barrel. The first surprise inser cam 80 raises the surprise jumper 8 again and keeps it away from the surprise until the ringer command is actuated again.

Comme on peut l'observer à la figure 6, le sautoir 8 est agencé pour être chassé dans une platine (non représentée sur les figures) et comprend, à l'extrémité chassée dans la platine, une ganse orientée 84 montée de façon à pouvoir limiter la course du sautoir 8 en position basse, la ganse 84 coopérant avec un pion 85 lorsque l'une des quatre branches du limaçon des minutes n'est pas présente.As can be seen at figure 6 , the jumper 8 is arranged to be driven in a plate (not shown in the figures) and comprises, at the end driven into the plate, an oriented loop 84 mounted so as to limit the stroke of the jumper 8 in the low position, the loop 84 cooperating with a pin 85 when one of the four branches of the minute snail is not present.

Bien que l'exemple décrit ci-dessus se rapporte au cas d'une surprise associée au limaçon des minutes, il faut rappeler qu'un dispositif isolateur de surprise selon l'invention peut aussi bien coopérer avec une surprise associée à un autre limaçon, notamment un limaçon des quarts par exemple.Although the example described above relates to the case of a surprise associated with the minute snail, it should be remembered that a surprise insulator device according to the invention can also cooperate with a surprise associated with another snail, especially a quarter snail for example.

L'invention est utilisable dans toute pièce d'horlogerie pourvue d'une sonnerie, notamment une montre à répétition minutes ou à grande sonnerie.The invention can be used in any timepiece provided with a ring, including a minute repeater watch or large ring.

Claims (10)

Mécanisme de surprise (1) pour pièce d'horlogerie à sonnerie comprenant : - un surprise (5) montée coaxiale à un premier limaçon (3) et à un deuxième limaçon (4), - une pièce des heures (2) reliée à une commande de sonnerie et agencée pour pivoter à partir d'une position de repos lorsque ladite commande est actionnée, - un sautoir de surprise (8) agencé pour s'appuyer contre la surprise (5) sous l'effet d'un ressort (6) pour faire pivoter la surprise (5) par rapport au premier limaçon (3), - et un dispositif isolateur de surprise agencé pour tenir le sautoir de surprise (8) à l'écart de la surprise (5) lorsque la pièce des heures (2) est en position de repos, caractérisée en ce que le dispositif isolateur de surprise est solidaire dudit sautoir de surprise et comprend un organe de verrouillage agencé pour coopérer avec la pièce des heures (2) de manière à maintenir écarté le sautoir de la surprise (8) lorsque la pièce des heures (2) est dans sa potion de repos.Surprise mechanism (1) for a striking timepiece comprising: a surprise (5) mounted coaxially with a first snail (3) and a second snail (4), a part of the hours (2) connected to a ringing command and arranged to pivot from a rest position when said command is actuated, - a surprise jumper (8) arranged to lean against the surprise (5) under the effect of a spring (6) to rotate the surprise (5) relative to the first snail (3), - and a surprise insulator device arranged to hold the surprise jumper (8) away from the surprise (5) when the hour piece (2) is in the rest position, characterized in that the surprise insulator device is integral with said jumper of surprise and comprises a locking member arranged to cooperate with the hour piece (2) so as to keep the jumper away from the surprise (8) when the room hours (2) is in his rest potion. Mécanisme de surprise (1) selon la revendication 1, dans lequel ledit organe de verrouillage comprend une première came (80) solidaire dudit sautoir de surprise (8).Surprise mechanism (1) according to claim 1, wherein said locking member comprises a first cam (80) integral with said surprise jumper (8). Mécanisme de surprise (1) selon la revendication 1 ou 2, dans lequel la pièce des heures (2) comprend un usinage de forme (20) agencé pour coopérer avec ladite première came (80).Surprise mechanism (1) according to claim 1 or 2, wherein the hour part (2) comprises a machining of form (20) arranged to cooperate with said first cam (80). Mécanisme de surprise (1) selon l'une quelconque des revendications 1 à 3, dans lequel le sautoir (8) comprend une deuxième came (81) agencée pour coopérer avec ledit ressort (6).Surprise mechanism (1) according to any one of claims 1 to 3, wherein the jumper (8) comprises a second cam (81) arranged to cooperate with said spring (6). Mécanisme de surprise (1) selon l'une quelconque des revendications 1 à 4, dans lequel la deuxième came (81) est solidaire du sautoir (8) et comprend une surface de guidage (82) agencée pour coopérer avec le ressort (6).Surprise mechanism (1) according to any one of claims 1 to 4, wherein the second cam (81) is integral with the jumper (8) and comprises a guide surface (82) arranged to cooperate with the spring (6) . Mécanisme de surprise (1) selon l'une quelconque des revendications 1 à 6, dans lequel le premier limaçon (3) est un limaçon des minutes.Surprise mechanism (1) according to any one of claims 1 to 6, wherein the first snail (3) is a minute snail. Mécanisme de surprise (1) selon l'une quelconque des revendications 1 à 5, dans lequel le deuxième limaçon (4) est un limaçon des quarts.Surprise mechanism (1) according to any one of claims 1 to 5, wherein the second snail (4) is a quarter snail. Mécanisme de surprise (1) selon l'une des revendications 1 à 7, dans lequel la surprise (5) comprend quatre branches, et un ressort (50) agencé dans l'une des branches pour coopérer avec le premier limaçon (3) pour maintenir la surprise (5) dans sa position de repos.Surprise mechanism (1) according to one of claims 1 to 7, wherein the surprise (5) comprises four branches, and a spring (50) arranged in one of the branches to cooperate with the first snail (3) for keep the surprise (5) in its rest position. Mécanisme de surprise (1) selon l'une des revendications 1 à 8, dans lequel le sautoir de surprise (8) comprend une ganse (84) de façon à limiter la course du sautoir de surprise (8) en position basse.Surprise mechanism (1) according to one of claims 1 to 8, wherein the surprise jumper (8) comprises a loop (84) so as to limit the stroke of surprise jumper (8) in the down position. Pièce d'horlogerie comprenant un mécanisme de surprise selon l'une quelconque des revendications précédentes.Timepiece comprising a surprise mechanism according to any one of the preceding claims.
EP17209992.1A 2017-12-22 2017-12-22 Surprise mechanism Active EP3502793B1 (en)

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Application Number Priority Date Filing Date Title
EP17209992.1A EP3502793B1 (en) 2017-12-22 2017-12-22 Surprise mechanism

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EP17209992.1A EP3502793B1 (en) 2017-12-22 2017-12-22 Surprise mechanism

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EP3502793A1 true EP3502793A1 (en) 2019-06-26
EP3502793B1 EP3502793B1 (en) 2020-11-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3845975A1 (en) * 2019-12-31 2021-07-07 Omega SA Safety device and ringing mechanism

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1416342A1 (en) * 2002-11-04 2004-05-06 Nouvelle Lémania SA Timepiece with an alarm provided with surprise-piece lifting lever
EP1959318A1 (en) 2007-02-13 2008-08-20 Zenith International SA Surprise mechanism for clock movement chimes
CH709069A2 (en) * 2013-12-24 2015-06-30 Patek Philippe Sa Geneve Timepiece including a striking mechanism on a time schedule adjustable mechanism.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1416342A1 (en) * 2002-11-04 2004-05-06 Nouvelle Lémania SA Timepiece with an alarm provided with surprise-piece lifting lever
EP1959318A1 (en) 2007-02-13 2008-08-20 Zenith International SA Surprise mechanism for clock movement chimes
CH709069A2 (en) * 2013-12-24 2015-06-30 Patek Philippe Sa Geneve Timepiece including a striking mechanism on a time schedule adjustable mechanism.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3845975A1 (en) * 2019-12-31 2021-07-07 Omega SA Safety device and ringing mechanism
KR20210086963A (en) * 2019-12-31 2021-07-09 오메가쏘시에떼아노님 Safety device and striking-work mechanism
CN113126469A (en) * 2019-12-31 2021-07-16 奥米加股份有限公司 Safety device and time-telling mechanism
JP7165180B2 (en) 2019-12-31 2022-11-02 オメガ・エス アー Safety device and strike work mechanism
KR102539815B1 (en) 2019-12-31 2023-06-02 오메가쏘시에떼아노님 Safety device and striking-work mechanism

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