EP1739509B1 - Timepiece comprising a device for actuating a striking mechanism, provided with an elastic transmission element - Google Patents

Timepiece comprising a device for actuating a striking mechanism, provided with an elastic transmission element Download PDF

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Publication number
EP1739509B1
EP1739509B1 EP05105715A EP05105715A EP1739509B1 EP 1739509 B1 EP1739509 B1 EP 1739509B1 EP 05105715 A EP05105715 A EP 05105715A EP 05105715 A EP05105715 A EP 05105715A EP 1739509 B1 EP1739509 B1 EP 1739509B1
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EP
European Patent Office
Prior art keywords
piston
timepiece
transmission element
travel
upstream
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.)
Active
Application number
EP05105715A
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German (de)
French (fr)
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EP1739509A1 (en
Inventor
Eric Goeller
Jérôme Chevalier
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.)
Montres Breguet SA
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Montres Breguet 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 Montres Breguet SA filed Critical Montres Breguet SA
Priority to EP05105715A priority Critical patent/EP1739509B1/en
Priority to AT05105715T priority patent/ATE512390T1/en
Priority to SG200604371A priority patent/SG128643A1/en
Priority to JP2006174804A priority patent/JP4531014B2/en
Priority to US11/426,781 priority patent/US7280440B2/en
Priority to CN200610094225A priority patent/CN100585517C/en
Publication of EP1739509A1 publication Critical patent/EP1739509A1/en
Priority to HK07102572.5A priority patent/HK1095642A1/en
Application granted granted Critical
Publication of EP1739509B1 publication Critical patent/EP1739509B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G04B23/00—Arrangements producing acoustic signals at preselected times
    • G04B23/02—Alarm clocks
    • G04B23/12—Alarm watches to be worn in pockets or on the wrist
    • 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
    • G04B21/10—Releasing or locking the regular stroke, e.g. for silence during the night
    • 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 a timepiece comprising a striking mechanism.
  • the invention more particularly relates to a timepiece comprising a housing containing a watch movement and at least one striking mechanism, and comprising a control device provided for actuating a triggering element of the striking mechanism, of the type in which the device control device comprises an external manipulation member which controls the stroke of a piston inside the casing between a rest position and an end-of-travel position, from upstream to downstream, of the type in which the piston causes a control surface which bears against the trigger member to drive it to a stop position determined by the striking mechanism, and of the type in which the piston is equipped with a resilient biasing member which presses on the housing so as to elastically bias the piston towards its rest position.
  • the device control device comprises an external manipulation member which controls the stroke of a piston inside the casing between a rest position and an end-of-travel position, from upstream to downstream
  • the piston causes a control surface which bears against the trigger member to drive it to a stop position determined by the striking mechanism
  • the piston is equipped with a resilient biasing member which presses on
  • a timepiece of this type is described, for example, in the document WO 00/36473 .
  • This document describes and shows a watch having an external bolt for controlling the sliding of the piston, against the restoring force of a helical compression spring which is arranged around a piston rod. The spring is interposed between the inner slider and the flange of a guide hole of the rod.
  • the control surface is arranged at the free end of the piston. It is supported against an arm that actuates the striking mechanism.
  • This arm is usually pivotally connected to a swivel rack that arms a barrel and that triggers the ring. The angular travel of the rack varies according to the time to be indicated.
  • the user does not always stop his effort on the bolt as soon as it comes to a stop. Also, the rack and other parts of the striking mechanism that are connected to it undergo the force applied by the user, which can cause a malfunction of the striking mechanism, or even damage this mechanism.
  • the invention aims to remedy these drawbacks.
  • the invention proposes a timepiece of the type described above, characterized in that an elastic transmission element is arranged between the piston and the triggering element, and in that the stroke of the piston comprises a stroke from the piston rest position to an intermediate position corresponding to the stop position of the trigger member, in which the stroke of the piston is related to the stroke of the trigger member by the elastic transmission element, and a passive stroke during which the piston slides against the elastic transmission element.
  • the forces applied by the user on the external manipulation member are not transmitted directly to the striking mechanism. This reduces the risk of malfunction of the striking mechanism, and increase the longevity of this mechanism.
  • the piston stroke is no longer dependent on the position of the trigger element, which allows to obtain a more accurate piston stroke, and which facilitates the development of the control device as for its stop positions.
  • the timepiece 10 is here a wristwatch 10, it being understood that the invention also applies to any other type of timepiece, such as pocket watch, pendant watch, clip watch, marine watch, etc.
  • the watch 10 shown comprises a housing 12 with a middle part 14 which delimits an internal chamber 16 sealed in which are housed a watch movement 18 and a striking mechanism 20 for emitting sounds on demand.
  • the housing 12 is here of generally cylindrical shape and A1 axis perpendicular to the plane of the figure 1 .
  • the movement 18 and the striking mechanism 20 are not described in detail since their construction is known.
  • the striking mechanism 20 may for example be constituted by a repeating quarter, five minutes, minute, etc.. having one or more hammers cooperating with stamps known per se.
  • the striking mechanism 20 is symbolized by a rack 22 which makes it possible to arm a ringer barrel and to trigger the buzzer.
  • the watch 10 comprises a control device 28 which cooperates with a trigger element 22 of the striking mechanism 20, this trigger element 22 being constituted here by the rack 22.
  • the rack 22 is mounted to pivot about an axis parallel to the axis A1 of the housing 12. It comprises a toothed portion 24 and an arm 26 provided to control the pivoting of the rack 22.
  • the rack 22 has an angular position of rest, which is illustrated by the figure 1 , and twelve abutment angular positions, said stop positions Pa, which respectively correspond to the twelve hours to be indicated. On the figure 3 , the rack 22 takes its stop position Pa at twelve o'clock and, on the figure 4 the rack 22 takes its stop position Pa at one o'clock.
  • stop position Pa of the rack 22 is defined by the striking mechanism 20. More precisely, it is the angular position of a snail hours (not shown) which determines the stop position Pa of the rack 22.
  • the control device 28 comprises an external manipulation member 30 called a bolt which controls the sliding of a piston 32 inside the housing 12, between a rest position Pr, illustrated by the figure 1 , and a limit position Pf, illustrated by the Figures 3 and 4 .
  • the piston 32 here has the form of a curved rod of circular section which extends, on an angular sector, in a circumferential direction of sliding D1 substantially parallel to the peripheral wall 34 of the middle part 14.
  • the bolt 30 slides along the outer face 33 of the peripheral wall 34 of the middle part 14.
  • the bolt 30 has a connecting arm 36 which extends radially inwardly of the housing 12, through a slot 38 arranged circumferential in the peripheral wall 34.
  • the link arm 36 is articulated on an inner slide said shoe 40 which slides along the inner face 35 of the peripheral wall 34, in a guide compartment 42, and which is articulated on the end upstream 43 of the piston 32.
  • the guiding compartment 42 is made in the radial thickness of the caseband 14. It is delimited, inwardly, by an internal partition 44 which forms, at its downstream end, a recess, with respect to the peripheral wall 34, delimiting a passage 46 for the piston 32.
  • the piston 32 extends inside the guide chamber 42 and in the internal compartment 16 of the housing 12.
  • a sealing insert 48 is welded in the passage 46.
  • This insert 48 has a hole 50 of circular section fitted to the diameter of the piston 32 to seal it tightly and thus ensure a seal between the internal chamber 16 and the guide compartment 42.
  • a guide plate 52 is fixed on the middle part 14, inside the internal compartment 16, on the downstream end 53 of the piston 32 side.
  • This guide plate 52 here extends transversely to the piston 32 and has a guide hole 54 provided for slidingly receiving the downstream end portion 56 of the piston 32.
  • the piston 32 is equipped with an elastic return element 58 which is interposed between the middle part 14 and the piston 32 so as to elastically bias the piston 32 towards its rest position Pr, here downstream.
  • This return element 58 is constituted here by a helical compression spring, said return spring 58, which is wound around the downstream end portion 56 of the piston 32 and which is interposed between a downstream abutment stud 60, fixed on the piston 32, and the upstream face 62 of the guide plate 52.
  • the piston 32 carries a control surface 64 which is provided to bear against the arm 26 of the rack 22 so as to cause its pivoting, in the counter-clockwise direction, considering the figures.
  • a transmission elastic element 68 is arranged between the piston 32 and the trigger element 22.
  • the stroke of the piston 32 comprises an active stroke, from the rest position Pr of the piston 32. to an intermediate position Pi corresponding to the stop position Pa of the trigger element 22, during which the stroke of the piston 32 is linked to the travel of the rack 22 by the elastic transmission element 68, and a passive stroke, to the end position Pf of the piston 32, during which the piston 32 slides against the elastic transmission element 68.
  • control surface 32 is arranged on an intermediate slide 66 which is slidably mounted relative to the piston 32.
  • a resilient transmission element 68 is interposed between the piston 32 and the intermediate slide 66.
  • transmission elastic element 68 is constituted here by a helical compression spring, said transmission spring 68, which is interposed between the downstream face 70 of an upstream block 72 of abutment, fixed on the piston 32, and a first bearing surface 74, facing upstream, belonging to the intermediate slide 66.
  • the intermediate slide 66 comprises a second bearing surface 76, directed downstream, which bears against an upstream bearing surface 78 of the upstream pin 72, when the piston 32 occupies its rest position Pr, under the effect of the the relaxation force applied by the transmission spring 68 on the intermediate slide 66.
  • the intermediate slide 66 here comprises a body 80 in the form of a curved plate which extends substantially parallel to the inner face 35 of the peripheral wall 34, on the axis A1 side of the housing 12 relative to the piston 32.
  • This body 80 is provided at its upstream end with an upstream tab 82 and at its downstream end with a downstream tab 84.
  • the upstream tabs 82 and downstream 84 are traversed by the piston 32 so as to slidably guide the intermediate slide 66 on the piston 32.
  • the first bearing surface 74 is arranged on the upstream face of the downstream tab 84 and the second bearing surface 76 is arranged on the downstream face of the upstream tab 82.
  • the body 80 has a shoulder which is arranged here in the vicinity of the upstream leg 82 and which forms the control surface 64 oriented downstream.
  • control device 28 The operation of the control device 28 according to the invention is as follows.
  • the user actuates the control device 28 by sliding the bolt 30 along the middle 14, downstream, causing an equivalent displacement of the piston 32 inside the housing 12.
  • the piston 32 moves downstream against the return force of the return spring 58, which is compressed more and more as the piston 32 approaches its end position Pf.
  • the intermediate slide 66 moves with the piston 32, under the effect of the transmission spring 68 which keeps the intermediate slide 66 pressed against the upstream pin 70
  • the displacement of the intermediate slide 66 causes, via the control surface 64, the pivoting of the rack 22.
  • the active stroke ends when the piston 32 reaches an intermediate position Pi corresponding to the stop position Pa of the rack 22, for example the twelve o'clock position illustrated by the figure 3 , in the case where the time measured by the movement 18 of the watch 10 is the twelfth hour.
  • the control surface 64 is then locked against the arm 26 of the rack 22, so that the intermediate slide 66 can no longer move downstream.
  • the stiffness of the transmission spring 68 is lower than the stiffness of the return spring 58.
  • the stiffness of the transmission spring 68 is calibrated so that the elastic force which urges the intermediate slide 66 downstream is greater than the rotational resistance force of the rack 22, to allow the transmission of the movement of the piston 32 to the rack 22.
  • the striking mechanism 20 can not be excessively loaded by the control device 28.
  • the maximum stroke of 30 and 32 piston is always the same, regardless of the stop position Pa of the rack 22.
  • the user releases the bolt 30 which then returns to its rest position, with the piston 32, under the effect of the relaxation force of the return spring 58
  • the relaxation force of the transmission spring 68 causes the return of the intermediate slide 66 to its own rest position, illustrated by the Figures 1 and 2 .
  • the rack 22 returns to its angular position of rest, pivoting here clockwise, and it triggers the ring.
  • the end position Pf of the piston 32 is determined by the support of the bolt 30 against an associated abutment surface arranged on the middle part 14.
  • the support of the bolt 30 against this abutment surface is damped under the effect of the compression of the two springs 58,68.
  • the transmission spring 68 can be interposed between the arm 26 and the rack 22.
  • the arm 26 is pivotally mounted about an axis A2 on the rack 22 and the transmission spring 68, here a spring the control surface 64 is here arranged on a stud 67 fixed on the piston 32, the presence of the slide 66 being no longer necessary.
  • this variant is similar to the operation of the control device 28 described above. Until the stop position Pa of the rack 22, during the active stroke of the piston 32, the arm 26 is pivotally connected to the rack 22. From the stop position Pa of the rack 22, during the passive stroke of the piston 32, the arm 26 is retracted by pivoting about its axis A2, against the transmission spring 68.
  • control device 28 may comprise additional intermediate drive parts, for example between the piston 32 and the rack 22.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electric Clocks (AREA)
  • Transmission Devices (AREA)

Abstract

The timepiece (10) has a case containing a watch movement and striking mechanism (20). A control device cooperates with a release unit (22) for the striking mechanism. An external manipulation component controls the sliding of a piston inside the case. A resilient transmission unit (68) is arranged between a piston (32) and the release unit. The resilient transmission unit is inserted between the piston and an intermediate sliding block (66).

Description

L'invention concerne une pièce d'horlogerie comportant un mécanisme de sonnerie.The invention relates to a timepiece comprising a striking mechanism.

L'invention concerne plus particulièrement une pièce d'horlogerie comprenant un boîtier contenant un mouvement horloger et au moins un mécanisme de sonnerie, et comprenant un dispositif de commande prévu pour actionner un élément de déclenchement du mécanisme de sonnerie, du type dans laquelle le dispositif de commande comporte un organe extérieur de manipulation qui commande la course d'un piston à l'intérieur du boîtier entre une position de repos et une position de fin de course, de l'amont vers l'aval, du type dans lequel le piston entraîne une surface de commande qui s'appuie contre l'élément de déclenchement pour le commander vers une position d'arrêt déterminée par le mécanisme de sonnerie, et du type dans lequel le piston est équipé d'un élément élastique de rappel qui s'appuie sur le boîtier de manière à solliciter élastiquement le piston vers sa position de repos.The invention more particularly relates to a timepiece comprising a housing containing a watch movement and at least one striking mechanism, and comprising a control device provided for actuating a triggering element of the striking mechanism, of the type in which the device control device comprises an external manipulation member which controls the stroke of a piston inside the casing between a rest position and an end-of-travel position, from upstream to downstream, of the type in which the piston causes a control surface which bears against the trigger member to drive it to a stop position determined by the striking mechanism, and of the type in which the piston is equipped with a resilient biasing member which presses on the housing so as to elastically bias the piston towards its rest position.

Une pièce d'horlogerie de ce type est décrite, par exemple, dans le document WO 00/36473 . Ce document décrit et représente une montre comportant une targette extérieure pour commander le coulissement du piston, à l'encontre de la force de rappel d'un ressort hélicoïdal de compression qui est agencé autour d'une tige formant piston. Le ressort est interposé entre le coulisseau intérieur et le rebord d'un trou de guidage de la tige.A timepiece of this type is described, for example, in the document WO 00/36473 . This document describes and shows a watch having an external bolt for controlling the sliding of the piston, against the restoring force of a helical compression spring which is arranged around a piston rod. The spring is interposed between the inner slider and the flange of a guide hole of the rod.

La surface de commande est agencée à l'extrémité libre du piston. Elle est en appui contre un bras qui actionne le mécanisme de sonnerie. Ce bras est généralement lié en pivotement à une crémaillère pivotante qui arme un barillet de sonnerie et qui déclenche la sonnerie. La course angulaire de la crémaillère varie en fonction de l'heure à indiquer.The control surface is arranged at the free end of the piston. It is supported against an arm that actuates the striking mechanism. This arm is usually pivotally connected to a swivel rack that arms a barrel and that triggers the ring. The angular travel of the rack varies according to the time to be indicated.

Lorsque l'utilisateur souhaite déclencher le mécanisme de sonnerie, il déplace la targette à l'encontre du ressort de rappel. Lorsque la crémaillère a parcouru une course angulaire déterminée par l'heure à indiquer, elle se trouve en butée, ce qui bloque le coulissement du piston ainsi que le coulissement de la targette.When the user wishes to trigger the striking mechanism, he moves the bolt against the return spring. When the rack has traveled an angular stroke determined by the time to be indicated, it is in abutment, which blocks the sliding of the piston and the sliding of the bolt.

Toutefois, l'utilisateur n'arrête pas toujours son effort sur la targette dès la venue en butée. Aussi, la crémaillère et les autres pièces du mécanisme de sonnerie qui lui sont reliées subissent l'effort appliqué par l'utilisateur, ce qui peut provoquer un dysfonctionnement du mécanisme de sonnerie, voire endommager ce mécanisme.However, the user does not always stop his effort on the bolt as soon as it comes to a stop. Also, the rack and other parts of the striking mechanism that are connected to it undergo the force applied by the user, which can cause a malfunction of the striking mechanism, or even damage this mechanism.

L'invention vise à remédier à ces inconvénients.The invention aims to remedy these drawbacks.

Dans ce but, l'invention propose une pièce d'horlogerie du type décrit précédemment, caractérisée en ce qu'un élément élastique de transmission est agencé entre le piston et l'élément de déclenchement, et en ce que la course du piston comprend une course active depuis la position de repos du piston jusqu'à une position intermédiaire correspondant à la position d'arrêt de l'élément de déclenchement, au cours de laquelle la course du piston est liée à la course de l'élément de déclenchement par l'élément élastique de transmission, et une course passive au cours de laquelle le piston coulisse à l'encontre de l'élément élastique de transmission.For this purpose, the invention proposes a timepiece of the type described above, characterized in that an elastic transmission element is arranged between the piston and the triggering element, and in that the stroke of the piston comprises a stroke from the piston rest position to an intermediate position corresponding to the stop position of the trigger member, in which the stroke of the piston is related to the stroke of the trigger member by the elastic transmission element, and a passive stroke during which the piston slides against the elastic transmission element.

Grâce à l'interposition de l'élément élastique de transmission, les efforts appliqués par l'utilisateur sur l'organe extérieur de manipulation ne sont pas transmis directement au mécanisme de sonnerie. Ceci permet de diminuer les risques de dysfonctionnement du mécanisme de sonnerie, et d'augmenter la longévité de ce mécanisme. De plus, la course du piston n'est plus dépendante de la position de l'élément de déclenchement, ce qui permet d'obtenir une course plus précise du piston, et ce qui facilite la mise au point du dispositif de commande quant à ses positions de butée.Thanks to the interposition of the elastic transmission element, the forces applied by the user on the external manipulation member are not transmitted directly to the striking mechanism. This reduces the risk of malfunction of the striking mechanism, and increase the longevity of this mechanism. In addition, the piston stroke is no longer dependent on the position of the trigger element, which allows to obtain a more accurate piston stroke, and which facilitates the development of the control device as for its stop positions.

Selon d'autres caractéristiques de l'invention :

  • la surface de commande est portée par un coulisseau intermédiaire qui est monté coulissant par rapport au piston, en ce que l'élément élastique de transmission est interposé entre le coulisseau intermédiaire et le piston, et, pendant la course active du piston, le coulisseau intermédiaire est lié en coulissement au piston par l'élément élastique de transmission et, pendant la course passive, le piston coulisse relativement au coulisseau à l'encontre de l'élément élastique de transmission ;
  • l'élément élastique de transmission sollicite le coulisseau intermédiaire contre une portée du piston orientée vers l'amont ;
  • la portée est aménagée sur un plot amont qui est fixé sur le piston ;
  • l'élément élastique de transmission est un ressort de compression ;
  • le coulisseau intermédiaire comporte un corps qui s'étend sensiblement parallèlement au piston, qui est délimité par une patte amont et par une patte aval, la patte amont est sollicitée en appui contre la portée du piston, et l'élément élastique de transmission est interposé entre le plot amont et la patte aval ;
  • la surface de commande est formée par un épaulement réalisé dans le corps du coulisseau intermédiaire ;
  • la surface de commande est fixée sur le piston, et l'élément de déclenchement comporte un bras pivotant qui est sollicité vers la surface de commande du piston par l'élément élastique de transmission ;
  • l'élément de rappel est interposé entre un plot aval fixé sur le piston et une surface d'appui associée du boîtier ;
  • le boîtier comporte une paroi périphérique globalement cylindrique et le piston s'étend globalement suivant une direction circonférentielle de coulissement, le long de la face interne de la paroi périphérique ;
  • le piston a globalement la forme d'une tige de section circulaire qui s'étend suivant la direction circonférentielle de coulissement ;
  • l'élément de déclenchement est pivotant et comporte une crémaillère.
According to other features of the invention:
  • the control surface is carried by an intermediate slider which is slidably mounted relative to the piston, in that the elastic transmission element is interposed between the intermediate slider and the piston, and during the active piston stroke, the intermediate slider is slidably connected to the piston by the elastic transmission element and, during the passive stroke, the piston slides relative to the slide against the elastic transmission element;
  • the elastic transmission element urges the intermediate slide against a range of the piston facing upstream;
  • the span is arranged on an upstream stud which is fixed on the piston;
  • the elastic transmission element is a compression spring;
  • the intermediate slider comprises a body which extends substantially parallel to the piston, which is delimited by an upstream leg and a downstream leg, the upstream leg is biased against the bearing surface of the piston, and the elastic transmission element is interposed between the upstream block and the downstream leg;
  • the control surface is formed by a shoulder formed in the body of the intermediate slider;
  • the control surface is fixed on the piston, and the trigger element comprises a pivoting arm which is biased towards the piston control surface by the elastic transmission element;
  • the return element is interposed between a downstream stud attached to the piston and an associated bearing surface of the housing;
  • the housing has a generally cylindrical peripheral wall and the piston extends generally in a circumferential direction of sliding, along the inner face of the peripheral wall;
  • the piston has generally the shape of a rod of circular section which extends in the circumferential direction of sliding;
  • the trigger element is pivotable and comprises a rack.

D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description détaillée qui suit, faite en référence aux dessins annexés donnés à titre d'exemple non limitatifs et dans lesquels :

  • la figure 1 est une vue selon un plan de coupe radial qui représente schématiquement une pièce d'horlogerie pourvue d'un dispositif de commande d'un mécanisme de sonnerie réalisée conformément aux enseignements de l'invention, le dispositif de commande étant à l'état de repos ;
  • la figure 2 est une vue en perspective qui représente schématiquement le dispositif de commande de la figure 1 ;
  • la figure 3 est une vue similaire à celle de la figure 1 qui illustre un état actionné du dispositif de commande pour une position d'arrêt à douze heures du mécanisme de sonnerie ;
  • la figure 4 est une vue similaire à celle de la figure 1 qui illustre un état actionné du dispositif de commande pour une position d'arrêt à une heure du mécanisme de sonnerie ;
  • la figure 5 est une vue similaire à celle de la figure 1 qui illustre une variante de réalisation du dispositif de commande comportant un bras pivotant sur une crémaillère.
Other features and advantages of the present invention will appear more clearly on reading the detailed description which follows, made with reference to the accompanying drawings given by way of non-limiting example and in which:
  • the figure 1 is a view along a radial sectional plane which schematically represents a timepiece provided with a control device of a striking mechanism produced in accordance with the teachings of the invention, the control device being in the state of rest ;
  • the figure 2 is a perspective view which schematically shows the control device of the figure 1 ;
  • the figure 3 is a view similar to that of the figure 1 which illustrates an actuated state of the control device for a twelve o'clock off position of the striking mechanism;
  • the figure 4 is a view similar to that of the figure 1 which illustrates an actuated state of the control device for a one hour stop position of the striking mechanism;
  • the figure 5 is a view similar to that of the figure 1 which illustrates an alternative embodiment of the control device comprising a pivoting arm on a rack.

Sur les figures 1 à 4, on a représenté une pièce d'horlogerie 10 qui est réalisée conformément aux enseignements de l'invention. La pièce d'horlogerie 10 est ici une montre 10 bracelet, étant bien entendu que l'invention s'applique également à tout autre type de pièce d'horlogerie, tel que montre de poche, montre pendentif, montre à clip, montre marine, etc. La montre 10 représentée comprend un boîtier 12 avec une une carrure 14 qui délimite une chambre interne 16 étanche dans laquelle sont logés un mouvement 18 horloger et un mécanisme de sonnerie 20 destiné à émettre des sons à la demande. Le boîtier 12 est ici de forme globalement cylindrique et d'axe A1 perpendiculaire au plan de la figure 1.On the Figures 1 to 4 there is shown a timepiece 10 which is produced in accordance with the teachings of the invention. The timepiece 10 is here a wristwatch 10, it being understood that the invention also applies to any other type of timepiece, such as pocket watch, pendant watch, clip watch, marine watch, etc. The watch 10 shown comprises a housing 12 with a middle part 14 which delimits an internal chamber 16 sealed in which are housed a watch movement 18 and a striking mechanism 20 for emitting sounds on demand. The housing 12 is here of generally cylindrical shape and A1 axis perpendicular to the plane of the figure 1 .

Le mouvement 18 et le mécanisme de sonnerie 20 ne sont pas décrits en détail étant donné que leur construction est connue. Le mécanisme de sonnerie 20 pourra par exemple être constitué par une répétition à quart, à cinq minutes, à minute, etc. comportant un ou plusieurs marteaux coopérant avec des timbres connus en soi. Sur les figures, le mécanisme de sonnerie 20 est symbolisé par une crémaillère 22 qui permet d'armer un barillet de sonnerie et de déclencher la sonnerie.The movement 18 and the striking mechanism 20 are not described in detail since their construction is known. The striking mechanism 20 may for example be constituted by a repeating quarter, five minutes, minute, etc.. having one or more hammers cooperating with stamps known per se. In the figures, the striking mechanism 20 is symbolized by a rack 22 which makes it possible to arm a ringer barrel and to trigger the buzzer.

La montre 10 comporte un dispositif de commande 28 qui coopère avec un élément de déclenchement 22 du mécanisme de sonnerie 20, cet élément de déclenchement 22 étant constitué ici par la crémaillère 22.The watch 10 comprises a control device 28 which cooperates with a trigger element 22 of the striking mechanism 20, this trigger element 22 being constituted here by the rack 22.

Selon le mode de réalisation représenté, la crémaillère 22 est montée à pivotement autour d'un axe parallèle à l'axe A1 du boîtier 12. Elle comporte une portion dentée 24 et un bras 26 prévu pour commander le pivotement de la crémaillère 22.According to the embodiment shown, the rack 22 is mounted to pivot about an axis parallel to the axis A1 of the housing 12. It comprises a toothed portion 24 and an arm 26 provided to control the pivoting of the rack 22.

La crémaillère 22 comporte une position angulaire de repos, qui est illustrée par la figure 1, et douze positions angulaires de butée, dites positions d'arrêt Pa, qui correspondent respectivement aux douze heures à indiquer. Sur la figure 3, la crémaillère 22 occupe sa position d'arrêt Pa à douze heures et, sur la figure 4, la crémaillère 22 occupe sa position d'arrêt Pa à une heure.The rack 22 has an angular position of rest, which is illustrated by the figure 1 , and twelve abutment angular positions, said stop positions Pa, which respectively correspond to the twelve hours to be indicated. On the figure 3 , the rack 22 takes its stop position Pa at twelve o'clock and, on the figure 4 the rack 22 takes its stop position Pa at one o'clock.

On note que la position d'arrêt Pa de la crémaillère 22 est définie par le mécanisme de sonnerie 20. Plus précisément, c'est la position angulaire d'un limaçon des heures (non représenté) qui détermine la position d'arrêt Pa de la crémaillère 22.Note that the stop position Pa of the rack 22 is defined by the striking mechanism 20. More precisely, it is the angular position of a snail hours (not shown) which determines the stop position Pa of the rack 22.

Le dispositif de commande 28 comporte un organe extérieur de manipulation 30 dit targette qui commande le coulissement d'un piston 32 à l'intérieur du boîtier 12, entre une position de repos Pr, illustrée par la figure 1, et une position de fin de course Pf, illustrée par les figures 3 et 4.The control device 28 comprises an external manipulation member 30 called a bolt which controls the sliding of a piston 32 inside the housing 12, between a rest position Pr, illustrated by the figure 1 , and a limit position Pf, illustrated by the Figures 3 and 4 .

Le piston 32 a ici la forme d'une tige cintrée de section circulaire qui s'étend, sur un secteur angulaire, suivant une direction circonférentielle de coulissement D1 sensiblement parallèle à la paroi périphérique 34 de la carrure 14.The piston 32 here has the form of a curved rod of circular section which extends, on an angular sector, in a circumferential direction of sliding D1 substantially parallel to the peripheral wall 34 of the middle part 14.

Dans la suite de la description, on utilisera à titre non limitatif une orientation de l'amont vers l'aval, suivant la direction circonférentielle de coulissement D1, depuis la position de repos Pr vers la position de fin de course Pf du piston 32.In the remainder of the description, use will be made not limitatively of an orientation from upstream to downstream, in the circumferential sliding direction D1, from the rest position Pr to the end-of-travel position Pf of the piston 32.

La targette 30 coulisse le long de la face externe 33 de la paroi périphérique 34 de la carrure 14. La targette 30 possède un bras de liaison 36 qui s'étend radialement vers l'intérieur du boîtier 12, à travers une fente 38 circonférentielle aménagée dans la paroi périphérique 34. Le bras de liaison 36 est articulé sur un coulisseau intérieur dit sabot 40 qui coulisse le long de la face interne 35 de la paroi périphérique 34, dans un compartiment de guidage 42, et qui est articulé sur l'extrémité amont 43 du piston 32.The bolt 30 slides along the outer face 33 of the peripheral wall 34 of the middle part 14. The bolt 30 has a connecting arm 36 which extends radially inwardly of the housing 12, through a slot 38 arranged circumferential in the peripheral wall 34. The link arm 36 is articulated on an inner slide said shoe 40 which slides along the inner face 35 of the peripheral wall 34, in a guide compartment 42, and which is articulated on the end upstream 43 of the piston 32.

Le compartiment de guidage 42 est réalisé dans l'épaisseur radiale de la carrure 14. Il est délimité, vers l'intérieur, par une cloison interne 44 qui forme, à son extrémité aval, un décrochement, par rapport à la paroi périphérique 34, délimitant un passage 46 pour le piston 32. Le piston 32 s'étend à l'intérieur de la chambre de guidage 42 et dans le compartiment interne 16 du boîtier 12.The guiding compartment 42 is made in the radial thickness of the caseband 14. It is delimited, inwardly, by an internal partition 44 which forms, at its downstream end, a recess, with respect to the peripheral wall 34, delimiting a passage 46 for the piston 32. The piston 32 extends inside the guide chamber 42 and in the internal compartment 16 of the housing 12.

Avantageusement, un insert 48 d'étanchéité est soudé dans le passage 46. Cet insert 48 comporte un trou 50 de section circulaire ajusté sur le diamètre du piston 32 pour l'enserrer de manière étanche et ainsi assurer une étanchéité entre la chambre interne 16 et le compartiment de guidage 42.Advantageously, a sealing insert 48 is welded in the passage 46. This insert 48 has a hole 50 of circular section fitted to the diameter of the piston 32 to seal it tightly and thus ensure a seal between the internal chamber 16 and the guide compartment 42.

Une plaquette de guidage 52 est fixée sur la carrure 14, à l'intérieur du compartiment interne 16, du côté de l'extrémité aval 53 du piston 32. Cette plaquette de guidage 52 s'étend ici transversalement au piston 32 et elle comporte un trou de guidage 54 prévu pour recevoir à coulissement le tronçon d'extrémité aval 56 du piston 32.A guide plate 52 is fixed on the middle part 14, inside the internal compartment 16, on the downstream end 53 of the piston 32 side. This guide plate 52 here extends transversely to the piston 32 and has a guide hole 54 provided for slidingly receiving the downstream end portion 56 of the piston 32.

Comme on peut le voir sur les figures, lorsque le piston 32 occupe sa position de repos Pr, son extrémité aval 53 se trouve à hauteur de la plaquette de guidage 52 et, lorsque le piston 32 occupe sa position de fin de course Pf, son extrémité aval 53 est décalée vers l'aval par rapport à la plaquette de guidage 52.As can be seen in the figures, when the piston 32 occupies its rest position Pr, its downstream end 53 is at the height of the guide plate 52 and, when the piston 32 occupies its end position Pf, its downstream end 53 is offset downstream relative to the guide plate 52.

Le piston 32 est équipé d'un élément élastique de rappel 58 qui est interposé entre la carrure 14 et le piston 32 de manière à solliciter élastiquement le piston 32 vers sa position de repos Pr, ici vers l'aval. Cet élément de rappel 58 est ici constitué par un ressort hélicoïdal de compression, dit ressort de rappel 58, qui est enroulé autour du tronçon d'extrémité aval 56 du piston 32 et qui est interposé entre un plot aval de butée 60, fixé sur le piston 32, et la face amont 62 de la plaquette de guidage 52.The piston 32 is equipped with an elastic return element 58 which is interposed between the middle part 14 and the piston 32 so as to elastically bias the piston 32 towards its rest position Pr, here downstream. This return element 58 is constituted here by a helical compression spring, said return spring 58, which is wound around the downstream end portion 56 of the piston 32 and which is interposed between a downstream abutment stud 60, fixed on the piston 32, and the upstream face 62 of the guide plate 52.

Le piston 32 porte une surface de commande 64 qui est prévue pour venir en appui contre le bras 26 de la crémaillère 22 de manière à en provoquer le pivotement, dans le sens anti-horaire en considérant les figures.The piston 32 carries a control surface 64 which is provided to bear against the arm 26 of the rack 22 so as to cause its pivoting, in the counter-clockwise direction, considering the figures.

Conformément aux enseignements de l'invention, un élément élastique de transmission 68 est agencé entre le piston 32 et l'élément de déclenchement 22. De plus, la course du piston 32 comprend une course active, depuis la position de repos Pr du piston 32 jusqu'à une position intermédiaire Pi correspondant à la position d'arrêt Pa de l'élément de déclenchement 22, au cours de laquelle la course du piston 32 est liée à la course de la crémaillère 22 par l'élément élastique de transmission 68, et une course passive, jusqu'à la position de fin de course Pf du piston 32, au cours de laquelle le piston 32 coulisse à l'encontre de l'élément élastique de transmission 68.According to the teachings of the invention, a transmission elastic element 68 is arranged between the piston 32 and the trigger element 22. In addition, the stroke of the piston 32 comprises an active stroke, from the rest position Pr of the piston 32. to an intermediate position Pi corresponding to the stop position Pa of the trigger element 22, during which the stroke of the piston 32 is linked to the travel of the rack 22 by the elastic transmission element 68, and a passive stroke, to the end position Pf of the piston 32, during which the piston 32 slides against the elastic transmission element 68.

Selon le mode de réalisation représenté ici, la surface de commande 32 est agencée sur un coulisseau intermédiaire 66 qui est monté coulissant par rapport au piston 32. Un élément élastique de transmission 68 est interposé entre le piston 32 et le coulisseau intermédiaire 66. L'élément élastique de transmission 68 est constitué ici par un ressort hélicoïdal de compression, dit ressort de transmission 68, qui est interposé entre la face aval 70 d'un plot amont 72 de butée, fixé sur le piston 32, et une première surface d'appui 74, orientée vers l'amont, appartenant au coulisseau intermédiaire 66.According to the embodiment shown here, the control surface 32 is arranged on an intermediate slide 66 which is slidably mounted relative to the piston 32. A resilient transmission element 68 is interposed between the piston 32 and the intermediate slide 66. transmission elastic element 68 is constituted here by a helical compression spring, said transmission spring 68, which is interposed between the downstream face 70 of an upstream block 72 of abutment, fixed on the piston 32, and a first bearing surface 74, facing upstream, belonging to the intermediate slide 66.

Le coulisseau intermédiaire 66 comporte une seconde surface d'appui 76, orientée vers l'aval, qui vient en appui contre une portée amont 78 du plot amont 72, lorsque le piston 32 occupe sa position de repos Pr, sous l'effet de l'effort de détente appliqué par le ressort de transmission 68 sur le coulisseau intermédiaire 66.The intermediate slide 66 comprises a second bearing surface 76, directed downstream, which bears against an upstream bearing surface 78 of the upstream pin 72, when the piston 32 occupies its rest position Pr, under the effect of the the relaxation force applied by the transmission spring 68 on the intermediate slide 66.

Le coulisseau intermédiaire 66 comporte ici un corps 80 en forme de plaque cintrée qui s'étend sensiblement parallèlement à la face interne 35 de la paroi périphérique 34, du côté de l'axe A1 du boîtier 12 par rapport au piston 32. Ce corps 80 est pourvu à son extrémité amont d'une patte amont 82 et à son extrémité aval d'une patte aval 84. Les pattes amont 82 et aval 84 sont traversées par le piston 32 de manière à guider en coulissement le coulisseau intermédiaire 66 sur le piston 32. La première surface d'appui 74 est aménagée sur la face amont de la patte aval 84 et la seconde surface d'appui 76 est aménagée sur la face aval de la patte amont 82.The intermediate slide 66 here comprises a body 80 in the form of a curved plate which extends substantially parallel to the inner face 35 of the peripheral wall 34, on the axis A1 side of the housing 12 relative to the piston 32. This body 80 is provided at its upstream end with an upstream tab 82 and at its downstream end with a downstream tab 84. The upstream tabs 82 and downstream 84 are traversed by the piston 32 so as to slidably guide the intermediate slide 66 on the piston 32. The first bearing surface 74 is arranged on the upstream face of the downstream tab 84 and the second bearing surface 76 is arranged on the downstream face of the upstream tab 82.

Le corps 80 comporte un épaulement qui est agencé ici au voisinage de la patte amont 82 et qui forme la surface de commande 64 orientée vers l'aval.The body 80 has a shoulder which is arranged here in the vicinity of the upstream leg 82 and which forms the control surface 64 oriented downstream.

Le fonctionnement du dispositif de commande 28 selon l'invention est le suivant.The operation of the control device 28 according to the invention is as follows.

A partir de l'état de repos, illustré par la figure 1, l'utilisateur actionne le dispositif de commande 28 en faisant coulisser la targette 30 le long de la carrure 14, vers l'aval, ce qui provoque un déplacement équivalent du piston 32 à l'intérieur du boîtier 12. Le piston 32 se déplace vers l'aval à l'encontre de la force de rappel du ressort de rappel 58, qui se comprime de plus en plus, au fur et à mesure que le piston 32 se rapproche de sa position de fin de course Pf.From the state of rest, illustrated by the figure 1 , the user actuates the control device 28 by sliding the bolt 30 along the middle 14, downstream, causing an equivalent displacement of the piston 32 inside the housing 12. The piston 32 moves downstream against the return force of the return spring 58, which is compressed more and more as the piston 32 approaches its end position Pf.

Pendant une première partie de la course d'actionnement du piston 32, dite course active, le coulisseau intermédiaire 66 se déplace avec le piston 32, sous l'effet du ressort de transmission 68 qui maintient le coulisseau intermédiaire 66 plaqué contre le plot amont 70. Le déplacement du coulisseau intermédiaire 66 provoque, par l'intermédiaire de la surface de commande 64, le pivotement de la crémaillère 22.During a first part of the actuating stroke of the piston 32, called the active stroke, the intermediate slide 66 moves with the piston 32, under the effect of the transmission spring 68 which keeps the intermediate slide 66 pressed against the upstream pin 70 The displacement of the intermediate slide 66 causes, via the control surface 64, the pivoting of the rack 22.

La course active se termine lorsque le piston 32 atteint une position intermédiaire Pi correspondant à la position d'arrêt Pa de la crémaillère 22, par exemple la position à douze heures illustrée par la figure 3, dans le cas où l'heure mesurée par le mouvement 18 de la montre 10 est la douzième heure. La surface de commande 64 est alors bloquée contre le bras 26 de la crémaillère 22, de sorte que le coulisseau intermédiaire 66 ne peut plus se déplacer vers l'aval.The active stroke ends when the piston 32 reaches an intermediate position Pi corresponding to the stop position Pa of the rack 22, for example the twelve o'clock position illustrated by the figure 3 , in the case where the time measured by the movement 18 of the watch 10 is the twelfth hour. The control surface 64 is then locked against the arm 26 of the rack 22, so that the intermediate slide 66 can no longer move downstream.

A partir de cette position intermédiaire Pi du piston 32, une seconde partie de la course d'actionnement du piston 32, dite course passive, commence. Pendant la course passive, le plot amont 72 continue de se déplacer avec le piston 32 en comprimant le ressort de transmission 68, puisque le coulisseau intermédiaire 66 ne peut plus se déplacer vers l'aval. Ainsi, le piston 32 continue de se déplacer vers l'aval, au-delà de sa position intermédiaire Pi, jusqu'à atteindre sa propre position de butée aval dite position de fin de course Pf, sans appliquer d'effort sur la crémaillère 22 autre que l'effort de détente du ressort de transmission 68.From this intermediate position Pi of the piston 32, a second part of the actuating stroke of the piston 32, called passive stroke, begins. During the passive race, the upstream block 72 continues to move with the piston 32 by compressing the transmission spring 68, since the intermediate slide 66 can no longer move downstream. Thus, the piston 32 continues to move downstream, beyond its intermediate position Pi, until reaching its own downstream stop position said end position Pf, without applying any effort on the rack 22 other than the triggering force of the transmission spring 68.

On note que la course active et la course passive du piston 32 se succèdent de manière continue. Pendant la course passive, la compression du ressort de transmission 68 vient s'ajouter à la compression du ressort de rappel 58.Note that the active stroke and the passive stroke of the piston 32 follow one another continuously. During the passive race, the compression of the transmission spring 68 is added to the compression of the return spring 58.

De préférence, la raideur du ressort de transmission 68 est inférieure à la raideur du ressort de rappel 58. De plus, la raideur du ressort de transmission 68 est calibrée de manière que la force élastique qui sollicite le coulisseau intermédiaire 66 vers l'aval soit supérieure à la force de résistance au pivotement de la crémaillère 22, pour permettre la transmission du mouvement du piston 32 à la crémaillère 22.Preferably, the stiffness of the transmission spring 68 is lower than the stiffness of the return spring 58. In addition, the stiffness of the transmission spring 68 is calibrated so that the elastic force which urges the intermediate slide 66 downstream is greater than the rotational resistance force of the rack 22, to allow the transmission of the movement of the piston 32 to the rack 22.

Grâce à l'invention, quel que soit l'effort exercé par l'utilisateur sur la targette 30, le mécanisme de sonnerie 20 ne peut pas être chargée de manière excessive par le dispositif de commande 28. De plus, la course maximale de la targette 30 et du piston 32 est toujours la même, quelle que soit la position d'arrêt Pa de la crémaillère 22.Thanks to the invention, whatever the force exerted by the user on the bolt 30, the striking mechanism 20 can not be excessively loaded by the control device 28. In addition, the maximum stroke of 30 and 32 piston is always the same, regardless of the stop position Pa of the rack 22.

Ainsi, comme on peut le voir sur la figure 4, lorsque la position d'arrêt Pa de la crémaillère 22 est la position à une heure, le pivotement de la crémaillère 22 est moindre que dans la configuration de déclenchement à douze heures, mais la course du piston 32 et de la targette 30 est toujours la même. La différence de pivotement angulaire du bras 26 de la crémaillère 22 est compensée par la compression du ressort de transmission 68, cette compression étant supérieure dans la position d'arrêt Pa à une heure, par rapport à la position d'arrêt Pa à douze heures.So, as we can see on the figure 4 when the stop position Pa of the rack 22 is the one-hour position, the pivoting of the rack 22 is less than in the twelve-hour trip configuration, but the stroke of the piston 32 and the bolt 30 is always the same. The difference in angular pivoting of the arm 26 of the rack 22 is compensated by the compression of the transmission spring 68, this compression being greater in the off position Pa at one hour, compared to the stop position Pa at twelve o'clock .

A la fin de la course du piston 32 vers l'aval, l'utilisateur relâche la targette 30 qui revient alors dans sa position de repos, avec le piston 32, sous l'effet de l'effort de détente du ressort de rappel 58. De plus, l'effort de détente du ressort de transmission 68 provoque le retour du coulisseau intermédiaire 66 jusqu'à sa propre position de repos, illustrée par les figures 1 et 2. Simultanément, la crémaillère 22 revient dans sa position angulaire de repos, en pivotant ici dans le sens horaire, et elle déclenche la sonnerie.At the end of the stroke of the piston 32 downstream, the user releases the bolt 30 which then returns to its rest position, with the piston 32, under the effect of the relaxation force of the return spring 58 In addition, the relaxation force of the transmission spring 68 causes the return of the intermediate slide 66 to its own rest position, illustrated by the Figures 1 and 2 . Simultaneously, the rack 22 returns to its angular position of rest, pivoting here clockwise, and it triggers the ring.

Selon le mode de réalisation représenté, la position de fin de course Pf du piston 32 est déterminée par la venue en appui de la targette 30 contre une surface de butée associée aménagé sur la carrure 14. La venue en appui de la targette 30 contre cette surface de butée est amortie sous l'effet de la compression des deux ressorts 58,68.According to the embodiment shown, the end position Pf of the piston 32 is determined by the support of the bolt 30 against an associated abutment surface arranged on the middle part 14. The support of the bolt 30 against this abutment surface is damped under the effect of the compression of the two springs 58,68.

Selon une variante de réalisation du dispositif de commande 28 selon l'invention, qui est représentée sur la figure 5, le ressort de transmission 68 peut être interposé entre le bras 26 et la crémaillère 22. Dans cette configuration, le bras 26 est monté pivotant autour d'un axe A2 sur la crémaillère 22 et le ressort de transmission 68, ici un ressort de détente, sollicite le bras 26 vers la surface de commande 64. La surface de commande 64 est ici aménagée sur un plot 67 fixé sur le piston 32, la présence du coulisseau 66 n'étant plus nécessaire.According to an alternative embodiment of the control device 28 according to the invention, which is represented on the figure 5 , the transmission spring 68 can be interposed between the arm 26 and the rack 22. In this configuration, the arm 26 is pivotally mounted about an axis A2 on the rack 22 and the transmission spring 68, here a spring the control surface 64 is here arranged on a stud 67 fixed on the piston 32, the presence of the slide 66 being no longer necessary.

Le fonctionnement de cette variante est similaire au fonctionnement du dispositif de commande 28 décrit précédemment. Jusqu'à la position d'arrêt Pa de la crémaillère 22, pendant la course active du piston 32, le bras 26 est lié en pivotement à la crémaillère 22. A partir de la position d'arrêt Pa de la crémaillère 22, pendant la course passive du piston 32, le bras 26 s'escamote en pivotant autour de son axe A2, à l'encontre du ressort de transmission 68.The operation of this variant is similar to the operation of the control device 28 described above. Until the stop position Pa of the rack 22, during the active stroke of the piston 32, the arm 26 is pivotally connected to the rack 22. From the stop position Pa of the rack 22, during the passive stroke of the piston 32, the arm 26 is retracted by pivoting about its axis A2, against the transmission spring 68.

On note que le dispositif de commande 28 selon l'invention peut comporter des pièces d'entraînement intermédiaires supplémentaires, par exemple entre le piston 32 et la crémaillère 22.Note that the control device 28 according to the invention may comprise additional intermediate drive parts, for example between the piston 32 and the rack 22.

Claims (12)

  1. Timepiece (10) including a case (12) containing a watch movement (18) and at least one striking mechanism (20), and including a control device (28) for actuating an element (22) releasing the striking mechanism (20), of the type wherein the control device (28) includes an external manipulation member (30), which controls the travel of a piston (32) inside the case (12) between a rest position (Pr) and an end of travel position (Pf), from upstream to downstream, of the type wherein the piston (32) drives a control surface (64) which abuts against the release element (22) to drive the release element towards a stop position (Pa) determined by the striking mechanism (20), and of the type wherein the piston (32) is fitted with a resilient return element (58) which abuts on the case (12) so as to draw the piston (32) resiliently towards its rest position (Pr),
    characterized in that a resilient transmission element (68) is arranged between the piston (32) and the release element (22) and in that the travel of the piston (32) includes an active travel, from the rest position (Pr) of the piston (32) to an intermediate position (Pi) corresponding to the stop position (Pa) of the release element (22), during which the travel of the piston (32) is connected to the travel of the release element (22) via the resilient transmission element (68), and a passive travel during which the piston (32) slides against the resilient transmission element (68).
  2. Timepiece (10) according to the preceding claim, characterized in that the control surface (64) is carried by an intermediate shoulder (66) which is slidably mounted in relation to the piston (32), and in that the resilient transmission element (68) is inserted between the intermediate sliding block (66) and the piston (32), and in that, during the active travel of the piston (32), the intermediate sliding block (66) is slidably connected to the piston (32) by the resilient transmission element (68) and, during the passive travel, the piston (32) slides relative to the sliding block (66) against the resilient transmission element (68).
  3. Timepiece (10) according to the preceding claim, characterized in that the resilient transmission element (68) draws the intermediate sliding block (66) against a shoulder (78) of the piston (32) oriented upstream.
  4. Timepiece (10) according to the preceding claim, characterized in that the shoulder (78) is arranged on an upstream stud (72) which is fixed to the piston (32).
  5. Timepiece (10) according to any of the preceding claims, characterized in that the resilient transmission element (68) is a compression spring.
  6. Timepiece (10) according to the preceding claim taken in combination with claim 4, characterized in that the intermediate sliding block (66) includes a body (80) which extends substantially parallel to the piston (32), which is delimited by an upstream lug (82) and by a downstream lug (84), and in that the upstream lug (82) is drawn in abutment against the shoulder (78) of the piston (32), and in that the resilient transmission element (68) is inserted between the upstream stud (72) and the downstream lug (74).
  7. Timepiece (10) according to the preceding claim, characterized in that the control surface (64) is formed by a shoulder made in the body (80) of the intermediate sliding block (66).
  8. Timepiece (10) according to claim 1, characterized in that the control surface (64) is fixed to the piston (32), and in that the release element (22) includes a pivoting arm (26) which is drawn towards the control surface (64) of the piston (32) by the resilient transmission element (68).
  9. Timepiece (10) according to any of the preceding claims, characterized in that the return element (58) is inserted between a downstream stud (60) fixed to the piston (32) and an associated support surface (62) of the case (12).
  10. Timepiece (10) according to any of the preceding claims, characterized in that the case (12) includes a generally cylindrical peripheral wall (34) and in that the piston (32) extends overall in a circumferential sliding direction (D1), along the inner face (35) of the peripheral wall (34).
  11. Timepiece (10) according to the preceding claim, characterized in that the piston (32) has the general shape of a stem of circular section which extends along the circumferential sliding direction (D1).
  12. Timepiece (10) according to any of the preceding claims, characterized in that the release element (22) pivots and includes a rack.
EP05105715A 2005-06-27 2005-06-27 Timepiece comprising a device for actuating a striking mechanism, provided with an elastic transmission element Active EP1739509B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP05105715A EP1739509B1 (en) 2005-06-27 2005-06-27 Timepiece comprising a device for actuating a striking mechanism, provided with an elastic transmission element
AT05105715T ATE512390T1 (en) 2005-06-27 2005-06-27 WATCH HAVING AN ACTUATING DEVICE OF A STRIKE MECHANISM WITH AN ELASTIC GEAR ELEMENT
JP2006174804A JP4531014B2 (en) 2005-06-27 2006-06-26 Timepiece having control device for striking mechanism adapted to flexible transmission element
SG200604371A SG128643A1 (en) 2005-06-27 2006-06-26 Timepiece including a control device for a striking mechanism fitted with a resilient transmission element
US11/426,781 US7280440B2 (en) 2005-06-27 2006-06-27 Timepiece including a control device for a striking mechanism fitted with a resilient transmission element
CN200610094225A CN100585517C (en) 2005-06-27 2006-06-27 Timepiece comprising a device for actuating a striking mechanism, provided with an elastic transmission element
HK07102572.5A HK1095642A1 (en) 2005-06-27 2007-03-08 Timepiece including a control device for a striking mechanism fitted with a resilient transmission element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05105715A EP1739509B1 (en) 2005-06-27 2005-06-27 Timepiece comprising a device for actuating a striking mechanism, provided with an elastic transmission element

Publications (2)

Publication Number Publication Date
EP1739509A1 EP1739509A1 (en) 2007-01-03
EP1739509B1 true EP1739509B1 (en) 2011-06-08

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EP05105715A Active EP1739509B1 (en) 2005-06-27 2005-06-27 Timepiece comprising a device for actuating a striking mechanism, provided with an elastic transmission element

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US (1) US7280440B2 (en)
EP (1) EP1739509B1 (en)
JP (1) JP4531014B2 (en)
CN (1) CN100585517C (en)
AT (1) ATE512390T1 (en)
HK (1) HK1095642A1 (en)
SG (1) SG128643A1 (en)

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Publication number Priority date Publication date Assignee Title
CN100543616C (en) * 2007-03-29 2009-09-23 天津海鸥表业集团有限公司 The give the correct time actuating mechanism that gives the correct time of wrist-watch of a kind of machinery
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EP2048548B8 (en) * 2007-10-10 2022-02-16 Richemont International S.A. Striking mechanism
EP2093633B1 (en) 2008-02-20 2013-05-01 Bulgari Horlogerie S.A. Timepiece equipped with an animation mechanism and a striking mechanism
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EP2653937B1 (en) 2012-04-18 2017-07-12 Montres Breguet SA Sealing device for minute repeater
CN103472705B (en) * 2012-06-07 2015-12-23 天津海鸥表业集团有限公司 A kind of actuating mechanism of mechanical timing dissemination wristwatch
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JP2007010655A (en) 2007-01-18
US20060291335A1 (en) 2006-12-28
US7280440B2 (en) 2007-10-09
HK1095642A1 (en) 2007-05-11
SG128643A1 (en) 2007-01-30
JP4531014B2 (en) 2010-08-25
CN1904771A (en) 2007-01-31
ATE512390T1 (en) 2011-06-15
EP1739509A1 (en) 2007-01-03
CN100585517C (en) 2010-01-27

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