EP2226687B1 - Disengaging device for timepiece mechanism, and watch movement comprising this device - Google Patents

Disengaging device for timepiece mechanism, and watch movement comprising this device Download PDF

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Publication number
EP2226687B1
EP2226687B1 EP09154219.1A EP09154219A EP2226687B1 EP 2226687 B1 EP2226687 B1 EP 2226687B1 EP 09154219 A EP09154219 A EP 09154219A EP 2226687 B1 EP2226687 B1 EP 2226687B1
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EP
European Patent Office
Prior art keywords
wheel
watch movement
arbour
gear train
sliding
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
EP09154219.1A
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German (de)
French (fr)
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EP2226687A1 (en
Inventor
Raphaël Courvoisier
Alphonse Bron
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 Jaquet Droz SA
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Montres Jaquet Droz 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.)
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Publication date
Application filed by Montres Jaquet Droz SA filed Critical Montres Jaquet Droz SA
Priority to EP09154219.1A priority Critical patent/EP2226687B1/en
Priority to ES09154219T priority patent/ES2423285T3/en
Priority to JP2010042166A priority patent/JP5322976B2/en
Priority to US12/715,913 priority patent/US8506157B2/en
Priority to CN2010101344018A priority patent/CN101825861B/en
Publication of EP2226687A1 publication Critical patent/EP2226687A1/en
Priority to HK11102114.4A priority patent/HK1148081A1/en
Application granted granted Critical
Publication of EP2226687B1 publication Critical patent/EP2226687B1/en
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Classifications

    • 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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/006—Clutch mechanism between two rotating members with transfer of movement in only one direction (free running devices)
    • G04B11/008—Clutch mechanism between two rotating members with transfer of movement in only one direction (free running devices) with friction members, e.g. click springs or jumper
    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/23—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands
    • G04B19/235—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands mechanisms for correcting the additional hand or hands
    • 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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/10—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is not limited

Definitions

  • the present invention relates to a disengagement device for a watch mechanism, comprising two coaxial wheels capable of coupling one to the other in rotation in at least one direction by means of respective coupling elements arranged on their sidewalls facing each other, one of the coaxial wheels, called the clutch wheel, being movable in the axial direction and biased by a return spring tending to engage the coupling elements.
  • the invention also relates to a watch movement comprising such a device, in particular in an automatic winding mechanism.
  • the directional rectifier device is formed by a pair of unidirectional clutch wheels arranged in parallel, for example wheels with wheels or ratchets.
  • the barrel spring in its armed state, is supported on the gear train tending to rotate in the opposite direction to the winding, but the rectifier device blocks this reverse rotation, thus preventing disarmage of the mainspring as the retaining pawl acting on the barrel ratchet in manual winding movements.
  • This ratchet is nevertheless retained in the majority of self-winding caliber to prevent the disarming of the spring when removing the automatic winding module, but it has the disadvantage of causing some loss of energy during reassembly. This is why we tend to remove it where the rectifying device of the automatic winding is able to oppose the disarming of the barrel.
  • this device is generally arranged to disengage automatically during manual winding of the barrel, to avoid rotating at high speed the first elements of the automatic winding train.
  • the clutch can be described as lateral or vertical, depending on the direction of movement of the movable clutch element.
  • the disengagement device is usually of the lateral type, the clutch element moving laterally relative to the axes of the automatic winding train.
  • This movable element is an intermediate wheel which, to be released from the ratchet or a ratchet gear, is carried by a rocker associated with a manual control and a return spring.
  • a rocker associated with a manual control and a return spring.
  • disengageable device of the lateral type uses a jumper or a jumper spring, carried by a wheel and applying on the top of the teeth of a toothed wheel of the star type.
  • the patent CH 655221 shows the use of such a device in combination with a second time zone indicator and the associated corrector.
  • the use of such a jumper device in an automatic winding train is not conceivable because it would be too difficult to control it manually.
  • a disengagement device of the so-called vertical type that is to say with displacement perpendicular to the plate of the movement, in combination with two types of automatic winding mechanisms.
  • the vertical axis of the disengaging device is conventionally supported by stones in the plate and the barrel bridge. It carries the last wheel of the reduction gear, provided with a Breguet toothing on its upper face.
  • the clutch wheel provided with a corresponding Breguet toothing is rotatable and sliding on the vertical axis and remains in permanent engagement with a gear meshing on the ratchet of the barrel.
  • the clutch wheel further comprises a barrel having a circular outer groove.
  • a tilting control lever ending in a fork engaged in said circular groove, is biased by a return spring to maintain or bring back the Breguet teeth in coupling.
  • a watchmaker By acting on the other end of this lever, a watchmaker can cause the disengage to disarm the barrel.
  • Breguet gear teeth are disengaged by overcoming the effect of the return spring.
  • a notable disadvantage of the aforementioned construction lies in the resisting torque caused by the friction of the control lever in the groove of the clutch wheel, because this friction is exerted at a distance from the axis of rotation. In addition, there is the need for careful lubrication. Another disadvantage is that the axis of the disengagement device occupies the entire height of the space between the plate and the barrel bridge, preventing another element from occupying part of this height. Finally, the control lever and its attachment to the plate take up space next to the disengaging device.
  • the main subject of the present invention is a disengaging device making it possible to largely avoid the drawbacks of the prior art by means of a simple and compact construction.
  • the invention also relates to watch movements incorporating such a device in various ways.
  • the invention relates to a disengagement device as defined in claim 1.
  • the clutch wheel being integral with the axis of the clutch device, can have a low height by removing the circular groove, while being perfectly guided since the guidance is provided by the bearings in the vicinity of the ends. of the sliding axis.
  • the force of the return spring instead of exerting itself on the clutch wheel and therefore at a certain distance from the axis of rotation, can advantageously be applied to one end of the sliding axis, therefore to a zero distance from the axis of rotation.
  • the return spring comprises an elastic blade bearing directly against one end of the sliding shaft. The entire clutch device can thus have a reduced height.
  • watch movements comprising such a disengaging device, in particular in an automatic winding mechanism and / or in a manual winding mechanism, or in the work train of a second time zone indicator.
  • the automatic winding mechanism 1 represented in the Figures 1 to 4 conventionally comprises a rotating eccentric mass which, when it rotates under the effect of the movements of the wearer, arms the spring of a cylinder of the watch movement of the watch. In order to clarify the drawings, this eccentric mass is not shown. In this example, she is away from the center of the movement.
  • the gear of the mechanism 1 is made in the form of a module whose frame comprises a frame 2, a bridge 3 and an additional plate 4, assembled by screws 5.
  • the input wheel of this wheel is a 6 which is engaged with the pinion (not shown) integral with the eccentric mass, while the output element is the wheel 7 driving the ratchet 8 fixed to the shaft 10 of the barrel 9.
  • Referral 6 when rotated in one direction or the other, causes a rectifier means formed by a conventional pair of ratchet wheels 11 and 12, the output gear 13 rotates in one direction and causes a reduction gear comprising two successive wheels 14 and 15.
  • the latter is provided with a long pinion 16 meshing on a clutch wheel 17 which is driven on a clutch shaft 18.
  • This axle 18, rotatably and slidably mounted in clockwork stones 24 and 25 carried respectively by the bridge 3 and the barrel bridge 31, is pushed permanently towards the barrel bridge (that is, upwards in the figure 3 ) by a leaf spring 26 fixed to the bridge 3 by means of a screw 27.
  • the end of the axis 18 is preferably curved, the torque due to the friction of the spring when the axis rotates is substantially zero and the lubrication does not poses no problem.
  • the axis 18 can slide along its axis of rotation 19, when it is constrained, against the force of the spring 26 which is relatively low. This sliding allows the operation of a disengaging device 20 having Breguet teeth 21 and 22, that is to say, sawtooth profiles, respectively disposed on the mutually opposite sides of the wheels 17 and 7.
  • the driving wheel 7 is rotatably and slidably mounted on the axis 18. Apart from the particular case illustrated by the figure 4 , its central hub 7a is held in abutment against the stone 25 by the force of the spring 26, producing a low friction torque due to the small diameter of the hub 7a.
  • the disengagement device 20 is said to be vertical because its movable clutch element 17 moves in the direction of its axis 19, described as vertical because perpendicular to the general plane of the plate 30 of the clockwork movement.
  • the clutch wheel 17 may have a total height much lower than in the case of the patent CH 352624 on the one hand thanks to the suppression of the circular groove and on the other hand because its stability is ensured by its attachment to the axis 18, supported in turn by sufficiently spaced bearings. This reduces the height of the disengagement device and its axis 18, releasing between this axis and the frame 2 a space used to enlarge the wheel 15 of the reduction gear.
  • the mechanism is in the state represented in figure 3 .
  • the slight axial thrust of the return spring 26 against the end of the clutch shaft 18 keeps the clutch wheel 17 bearing against the ratchet driving wheel 7, with the Breguet toothing engaged one inside the other as shown in the diagram of the figure 2 .
  • the oscillating weight of the automatic winding rotates, it rotates the Breguet toothing 21 in the direction of the arrow A, which causes the Breguet toothing 22 in the direction of the arrow B by the support of the vertical faces of the teeth and therefore makes turn the wheel 7, the ratchet 8 and the shaft 10 to refit the mainspring.
  • the figure 4 represents the case of a manual intervention of a watchmaker to disengage the automatic winding train when it is necessary to disarm the barrel 9, for example during disassembly of the movement. It suffices to overcome the thrust of the spring 26 by exerting an axial force F on the end 18a of the axis 18 which protrudes beyond the corresponding bearing 25, for example with a tool 32 or a weight, while holding the winding stem so that the barrel does not disarm instantly.
  • the driving wheel 7 is retained by the plate 4, the clutch wheel 17 remains engaged with the pinion 16, the Breguet teeth 21 and 22 are completely disengaged. one of the other and the wheel 7 is disengaged.
  • the present invention makes it possible to realize an automatic watch winding mechanism with a simpler and more reliable construction than the prior art, while reducing the losses of energy by friction and gaining space.
  • the construction of the disengaging device may differ from what the drawings represent without departing from the scope of the invention claimed herein.
  • other forms of conjugated coupling elements may be provided, provided that at least one of these elements comprises a ramp-shaped part on which the element conjugate can slip or roll to push the clutch wheel against the force of the spring in one of the rotating directions of the device.
  • a vertical disengagement device consists in incorporating it into a manual winding train, thus connecting a winding stem to the spring barrel by acting for example on the ratchet 8 shown in FIGS. figures 3 and 4 .
  • This disengaging device may be of similar construction to that of the previous example. It can coexist with that one in an automatic watch, thus preventing automatic winding rotates the winding crown, a function that is usually provided by a lateral disengagement device.
  • FIG. 5 schematically shows a time display wheel on the dial 40 of a watch, with an additional hand to indicate the time of a second time zone.
  • a center tube 41 fixed to the plate 30 carries concentric rotary elements comprising: the floor 42 provided with the minute hand (not shown), a barrel 43 provided with the normal hour hand (not shown) and the hour wheel 44, and an additional barrel 45 provided with a wheel 46 and a second time zone needle 47 which cooperates with a twenty-four hour scale on the dial 40.
  • the hour wheel 44 making two turns per day, is driven by the pinion of the floor 42 via a conventional timer wheel 48. It itself drives the time zone wheel 46 at the speed of one revolution per day via a gear wheel 49 which includes a device of declutching 50 according to the present invention.
  • the gear wheel 49 replenishes in turn the two functions of geared transmission and disengagement.
  • the entry element of the disengaging device is the clutch wheel 51 whose axis 52 is rotatably and slidably mounted in bearings 53 and 54 formed by stones in the plate 30 and a holding plate 55.
  • the shaft 52 and the wheel 51 are continuously urged toward the dial by a leaf spring 56 pressing against the end of the shaft 52.
  • the toothing of the wheel 51 is wide enough to remain engaged with the wheel 51. the wheel 44 when the axis 52 slides.
  • the output member of the disengagement device is a driving wheel 58 which is engaged with the time zone wheel 46 and with a return 60 forming part of a time zone corrector.
  • the wheel 58 is pivotable on the axis 52 and retained axially between the stone 54 and a limiting bridge 61.
  • the wheels 51 and 58 of the clutch device 50 comprise respective coupling elements arranged on their flanks facing each other and held coupled by the slight axial thrust of the spring 56.
  • These elements are constituted for example by clutch teeth with symmetrical inclined flanks, to be able to transmit the rotation of the hour wheel 44 to the needle 47 in both directions, especially when you put the watch on time, and to disengage in both directions.
  • the action of the user on the corrector rotates the reference 60, the driving wheel 58, the time zone wheel 46 and the needle 47 in one direction or the other, while a corresponding rotation of the clutch wheel 51 is prevented by the hour wheel 44.
  • the clutch wheel 51 is pushed back against the spring 56, so that the second time zone indicator is thus momentarily disengaged from the watch movement and can turn manually in steps of one hour (or half an hour in some cases), the elements of coupling constituting a notching which corresponds to the successive time zones.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Gears, Cams (AREA)
  • Mechanical Operated Clutches (AREA)

Description

Arrière-plan de l'inventionBackground of the invention

La présente invention concerne un dispositif de débrayage pour mécanisme horloger, comportant deux roues coaxiales susceptibles de se coupler l'une à l'autre en rotation au moins dans un sens grâce à des éléments d'accouplement respectifs disposés sur leurs flancs se faisant face, l'une des roues coaxiales, dite roue d'embrayage, étant mobile en direction axiale et sollicitée par un ressort de rappel tendant à mettre en prise les éléments d'accouplement. L'invention concerne également un mouvement de montre comportant un tel dispositif, notamment dans un mécanisme de remontage automatique.The present invention relates to a disengagement device for a watch mechanism, comprising two coaxial wheels capable of coupling one to the other in rotation in at least one direction by means of respective coupling elements arranged on their sidewalls facing each other, one of the coaxial wheels, called the clutch wheel, being movable in the axial direction and biased by a return spring tending to engage the coupling elements. The invention also relates to a watch movement comprising such a device, in particular in an automatic winding mechanism.

Dans la plupart des mécanismes de remontage automatique actuels, le dispositif redresseur de sens est formé par une paire de roues d'embrayage unidirectionnel disposées en parallèle, par exemple des roues à galets ou à cliquets. Le ressort de barillet, dans son état armé, prend appui sur le rouage réducteur en tendant à le faire tourner dans le sens opposé au remontage, mais le dispositif redresseur bloque cette rotation inverse, empêchant ainsi un désarmage du ressort de barillet comme le fait le cliquet de retenue agissant sur le rochet du barillet dans les mouvements à remontage manuel. Ce cliquet est néanmoins conservé dans la majorité des calibres à remontage automatique afin d'empêcher le désarmage du ressort lorsqu'on enlève le module de remontage automatique, mais il a l'inconvénient de causer une certaine perte d'énergie lors du remontage. C'est pourquoi on tend à le supprimer là où le dispositif redresseur du remontage automatique est capable de s'opposer au désarmage du barillet.In most current automatic winding mechanisms, the directional rectifier device is formed by a pair of unidirectional clutch wheels arranged in parallel, for example wheels with wheels or ratchets. The barrel spring, in its armed state, is supported on the gear train tending to rotate in the opposite direction to the winding, but the rectifier device blocks this reverse rotation, thus preventing disarmage of the mainspring as the retaining pawl acting on the barrel ratchet in manual winding movements. This ratchet is nevertheless retained in the majority of self-winding caliber to prevent the disarming of the spring when removing the automatic winding module, but it has the disadvantage of causing some loss of energy during reassembly. This is why we tend to remove it where the rectifying device of the automatic winding is able to oppose the disarming of the barrel.

Mais il est alors utile de prévoir un dispositif de débrayage dans le rouage de remontage automatique, afin de permettre à un horloger de désarmer manuellement le barillet, notamment lorsqu'il démonte une partie du mouvement. En outre, ce dispositif est généralement agencé pour se débrayer automatiquement lors d'un remontage manuel du barillet, pour éviter de faire tourner à grande vitesse les premiers éléments du rouage de remontage automatique. Le débrayage peut être qualifié de latéral ou de vertical, selon la direction de déplacement de l'élément d'embrayage mobile.But it is then useful to provide a disengagement device in the automatic winding train, to allow a watchmaker to manually disarm the barrel, especially when it disassembles part of the movement. In addition, this device is generally arranged to disengage automatically during manual winding of the barrel, to avoid rotating at high speed the first elements of the automatic winding train. The clutch can be described as lateral or vertical, depending on the direction of movement of the movable clutch element.

Le dispositif de débrayage est habituellement du type latéral, l'élément d'embrayage se déplaçant latéralement par rapport aux axes du rouage de remontage automatique. Cet élément mobile est une roue intermédiaire qui, pour pouvoir se dégager du rochet ou d'un renvoi entraineur de rochet, est portée par une bascule associée à une commande manuelle et à un ressort de rappel. Dans certains cas, l'utilisation d'un tel système à bascule peut créer des difficultés dans la conception d'un mouvement de montre, notamment du point de vue de l'encombrement latéral ou de l'implantation des pivots.The disengagement device is usually of the lateral type, the clutch element moving laterally relative to the axes of the automatic winding train. This movable element is an intermediate wheel which, to be released from the ratchet or a ratchet gear, is carried by a rocker associated with a manual control and a return spring. In some cases, the use of such a rocking system can create difficulties in the design of a watch movement, particularly from the point of view of the lateral size or the implantation of the pivots.

Une autre forme de dispositif débrayable du type latéral utilise un sautoir ou un ressort-sautoir, porté par une roue et s'appliquant sur le sommet des dents d'une roue dentée du genre étoile. Le brevet CH 655221 montre l'utilisation d'un tel dispositif en combinaison avec un indicateur de second fuseau horaire et le correcteur associé. L'utilisation d'un tel dispositif à sautoir dans un rouage de remontage automatique n'est pas envisageable, car il serait trop difficile de le commander manuellement.Another form of disengageable device of the lateral type uses a jumper or a jumper spring, carried by a wheel and applying on the top of the teeth of a toothed wheel of the star type. The patent CH 655221 shows the use of such a device in combination with a second time zone indicator and the associated corrector. The use of such a jumper device in an automatic winding train is not conceivable because it would be too difficult to control it manually.

Dans le brevet CH 352624 est décrit un dispositif de débrayage du type dit vertical, c'est-à-dire avec déplacement perpendiculaire à la platine du mouvement, en combinaison avec deux types de mécanismes de remontage automatique. L'axe vertical du dispositif de débrayage est supporté de manière classique par des pierres dans la platine et le pont de barillet. Il porte la dernière roue de l'engrenage réducteur, pourvue d'une denture Breguet sur sa face supérieure. Au-dessus de celle-ci, la roue d'embrayage pourvue d'une denture Breguet correspondante est rotative et coulissante sur l'axe vertical et reste en prise permanente avec un renvoi engrené sur le rochet du barillet. La roue d'embrayage comporte en outre un canon ayant une gorge extérieure circulaire. Un levier de commande basculant, se terminant par une fourche engagée dans ladite gorge circulaire, est sollicité par un ressort de rappel pour maintenir ou ramener les dentures Breguet en accouplement. En agissant sur l'autre extrémité de ce levier, un horloger peut provoquer le débrayage pour désarmer le barillet. Durant le remontage manuel, le débrayage des dentures Breguet s'effectue de lui-même en surmontant l'effet du ressort de rappel.In the patent CH 352624 is described a disengagement device of the so-called vertical type, that is to say with displacement perpendicular to the plate of the movement, in combination with two types of automatic winding mechanisms. The vertical axis of the disengaging device is conventionally supported by stones in the plate and the barrel bridge. It carries the last wheel of the reduction gear, provided with a Breguet toothing on its upper face. Above this, the clutch wheel provided with a corresponding Breguet toothing is rotatable and sliding on the vertical axis and remains in permanent engagement with a gear meshing on the ratchet of the barrel. The clutch wheel further comprises a barrel having a circular outer groove. A tilting control lever, ending in a fork engaged in said circular groove, is biased by a return spring to maintain or bring back the Breguet teeth in coupling. By acting on the other end of this lever, a watchmaker can cause the disengage to disarm the barrel. During manual winding, Breguet gear teeth are disengaged by overcoming the effect of the return spring.

Un inconvénient notable de la construction susmentionnée réside dans le couple résistant causé par le frottement du levier de commande dans la gorge de la roue d'embrayage, car ce frottement s'exerce à une certaine distance de l'axe de rotation. Il s'y ajoute le besoin d'une lubrification soignée. Un autre inconvénient est que l'axe du dispositif de débrayage occupe toute la hauteur de l'espace compris entre la platine et le pont de barillet, empêchant un autre élément d'occuper une partie de cette hauteur. Enfin, le levier de commande et sa fixation sur la platine prennent de la place à côté du dispositif de débrayage.A notable disadvantage of the aforementioned construction lies in the resisting torque caused by the friction of the control lever in the groove of the clutch wheel, because this friction is exerted at a distance from the axis of rotation. In addition, there is the need for careful lubrication. Another disadvantage is that the axis of the disengagement device occupies the entire height of the space between the plate and the barrel bridge, preventing another element from occupying part of this height. Finally, the control lever and its attachment to the plate take up space next to the disengaging device.

Résumé de l'inventionSummary of the invention

La présente invention a pour objet principal un dispositif de débrayage permettant d'éviter dans une large mesure les inconvénients de l'art antérieur, au moyen d'une construction simple et peu encombrante. L'invention a aussi pour objets des mouvements de montre incorporant un tel dispositif de diverses manières.The main subject of the present invention is a disengaging device making it possible to largely avoid the drawbacks of the prior art by means of a simple and compact construction. The invention also relates to watch movements incorporating such a device in various ways.

Sous son aspect général, l'invention concerne un dispositif de débrayage tel que défini dans la revendication 1.In its general aspect, the invention relates to a disengagement device as defined in claim 1.

Par rapport au dispositif illustré par le brevet CH 352624 , cet agencement se distingue principalement par deux particularités avantageuses. Premièrement la roue d'embrayage, étant solidaire de l'axe du dispositif d'embrayage, peut avoir une faible hauteur grâce à la suppression de la gorge circulaire, tout en étant parfaitement guidée puisque le guidage est assuré par les paliers au voisinage des extrémités de l'axe coulissant. Deuxièmement, la force du ressort de rappel, au lieu de s'exercer sur la roue d'embrayage et donc à une certaine distance de l'axe de rotation, peut avantageusement être appliquée sur une extrémité de l'axe coulissant, donc à une distance nulle de l'axe de rotation. De préférence, le ressort de rappel comporte une lame élastique s'appuyant directement contre une extrémité de l'axe coulissant. L'ensemble du dispositif de débrayage peut ainsi présenter une hauteur réduite.Compared to the device illustrated by the patent CH 352624 this arrangement is distinguished mainly by two advantageous features. Firstly the clutch wheel, being integral with the axis of the clutch device, can have a low height by removing the circular groove, while being perfectly guided since the guidance is provided by the bearings in the vicinity of the ends. of the sliding axis. Secondly, the force of the return spring, instead of exerting itself on the clutch wheel and therefore at a certain distance from the axis of rotation, can advantageously be applied to one end of the sliding axis, therefore to a zero distance from the axis of rotation. Preferably, the return spring comprises an elastic blade bearing directly against one end of the sliding shaft. The entire clutch device can thus have a reduced height.

Selon d'autres aspects de l'invention, il est prévu des mouvements de montre comportant un tel dispositif de débrayage, en particulier dans un mécanisme de remontage automatique et/ou dans un mécanisme de remontage manuel, ou encore dans le rouage d'un indicateur de second fuseau horaire.According to other aspects of the invention, there are provided watch movements comprising such a disengaging device, in particular in an automatic winding mechanism and / or in a manual winding mechanism, or in the work train of a second time zone indicator.

D'autres caractéristiques et avantages de la présente invention apparaîtront dans la description suivante de divers modes de réalisation, présentés à titre d'exemples non limitatifs, en référence aux dessins annexés qui représentent deux de ces exemples.Other features and advantages of the present invention will appear in the following description of various embodiments, presented by way of non-limiting examples, with reference to the accompanying drawings which represent two of these examples.

Description sommaire des dessinsBrief description of the drawings

  • La figure 1 est une vue éclatée montrant le rouage d'un mécanisme de remontage automatique de montre-bracelet, comportant un dispositif de débrayage vertical selon l'invention.The figure 1 is an exploded view showing the gear of an automatic winding mechanism wristwatch, comprising a vertical disengagement device according to the invention.
  • La figure 2 est un schéma des dentures Breguet utilisées dans le dispositif de débrayage.The figure 2 is a diagram of the Breguet teeth used in the disengaging device.
  • La figure 3 est une vue en coupe du mécanisme représenté dans la figure 1, dans l'état embrayé, le côté cadran étant en bas.The figure 3 is a sectional view of the mechanism shown in the figure 1 , in the engaged state, the dial side being down.
  • La figure 4 est une vue analogue à la figure 3, montrant le mécanisme dans un état débrayé manuellement.The figure 4 is a view similar to the figure 3 , showing the mechanism in a manually disengaged state.
  • La figure 5 est une vue schématique en coupe verticale d'un rouage d'affichage comportant un dispositif de débrayage selon l'invention, associé à un correcteur de fuseau horaire.The figure 5 is a schematic view in vertical section of a display gear comprising a disengagement device according to the invention, associated with a time zone corrector.
Description détaillée de divers modes de réalisationDetailed description of various embodiments

Le mécanisme de remontage automatique 1 représenté dans les figures 1 à 4 comporte de manière classique une masse excentrique rotative qui, lorsqu'elle tourne sous l'effet des mouvements du porteur, arme le ressort d'un barillet du mouvement d'horlogerie de la montre. Afin de clarifier les dessins, cette masse excentrique n'est pas représentée. Dans cet exemple, elle se trouve à l'écart du centre du mouvement.The automatic winding mechanism 1 represented in the Figures 1 to 4 conventionally comprises a rotating eccentric mass which, when it rotates under the effect of the movements of the wearer, arms the spring of a cylinder of the watch movement of the watch. In order to clarify the drawings, this eccentric mass is not shown. In this example, she is away from the center of the movement.

On remarque, notamment dans la figure 1, que le rouage du mécanisme 1 est réalisé sous la forme d'un module dont l'ossature comprend un bâti 2, un pont 3 et une plaque additionnelle 4, assemblés par des vis 5. La roue d'entrée de ce rouage est un renvoi 6 qui est en prise avec le pignon (non représenté) solidaire de la masse excentrique, tandis que l'élément de sortie est la roue 7 entraînant le rochet 8 fixé à l'arbre 10 du barillet 9.We notice, especially in figure 1 , that the gear of the mechanism 1 is made in the form of a module whose frame comprises a frame 2, a bridge 3 and an additional plate 4, assembled by screws 5. The input wheel of this wheel is a 6 which is engaged with the pinion (not shown) integral with the eccentric mass, while the output element is the wheel 7 driving the ratchet 8 fixed to the shaft 10 of the barrel 9.

Le renvoi 6, lorsqu'il tourne dans un sens ou dans l'autre, entraîne un dispositif redresseur de sens formé par une paire classique de roues à cliquets 11 et 12, dont le pignon de sortie 13 tourne dans un seul sens et entraîne un engrenage de réduction comprenant deux roues successives 14 et 15. Cette dernière est munie d'un long pignon 16 engrené sur une roue d'embrayage 17 qui est chassée sur un axe d'embrayage 18. Cet axe 18, monté de manière rotative et coulissante dans des pierres d'horlogerie 24 et 25 portées respectivement par le pont 3 et le pont de barillet 31, est poussé en permanence en direction du pont de barillet (c'est-à-dire vers le haut dans la figure 3) par un ressort lame 26 fixé au pont 3 au moyen d'une vis 27. L'extrémité de l'axe 18 étant de préférence bombée, le couple dû au frottement du ressort quand l'axe tourne est pratiquement nul et la lubrification ne pose pas de problème. L'axe 18 peut coulisser suivant son axe de rotation 19, lorsqu'il y est contraint, à l'encontre de la force du ressort 26 qui est relativement faible. Ce coulissement permet le fonctionnement d'un dispositif de débrayage 20 comportant des dentures Breguet 21 et 22, c'est-à-dire des profils en dents de scie, disposées respectivement sur les flancs mutuellement opposés des roues 17 et 7. La roue entraineuse 7 est montée de manière rotative et coulissante sur l'axe 18. En dehors du cas particulier illustré par la figure 4, son moyeu central 7a est maintenu en appui contre la pierre 25 par la force du ressort 26, produisant un couple de frottement qui est faible grâce au petit diamètre du moyeu 7a.Referral 6, when rotated in one direction or the other, causes a rectifier means formed by a conventional pair of ratchet wheels 11 and 12, the output gear 13 rotates in one direction and causes a reduction gear comprising two successive wheels 14 and 15. The latter is provided with a long pinion 16 meshing on a clutch wheel 17 which is driven on a clutch shaft 18. This axle 18, rotatably and slidably mounted in clockwork stones 24 and 25 carried respectively by the bridge 3 and the barrel bridge 31, is pushed permanently towards the barrel bridge (that is, upwards in the figure 3 ) by a leaf spring 26 fixed to the bridge 3 by means of a screw 27. The end of the axis 18 is preferably curved, the torque due to the friction of the spring when the axis rotates is substantially zero and the lubrication does not poses no problem. The axis 18 can slide along its axis of rotation 19, when it is constrained, against the force of the spring 26 which is relatively low. This sliding allows the operation of a disengaging device 20 having Breguet teeth 21 and 22, that is to say, sawtooth profiles, respectively disposed on the mutually opposite sides of the wheels 17 and 7. The driving wheel 7 is rotatably and slidably mounted on the axis 18. Apart from the particular case illustrated by the figure 4 , its central hub 7a is held in abutment against the stone 25 by the force of the spring 26, producing a low friction torque due to the small diameter of the hub 7a.

Le dispositif de débrayage 20 est dit vertical parce que son élément d'embrayage mobile 17 se déplace dans la direction de son axe 19, qualifié de vertical parce que perpendiculaire au plan général de la platine 30 du mouvement d'horlogerie.The disengagement device 20 is said to be vertical because its movable clutch element 17 moves in the direction of its axis 19, described as vertical because perpendicular to the general plane of the plate 30 of the clockwork movement.

On remarque dans la figure 3 que la roue d'embrayage 17 peut avoir une hauteur totale beaucoup plus faible que dans le cas du brevet CH 352624 , d'une part grâce à la suppression de la gorge circulaire et d'autre part parce que sa stabilité est assurée par sa fixation à l'axe 18, supporté quant à lui par des paliers suffisamment espacés. Cela permet de réduire la hauteur du dispositif de débrayage et de son axe 18, libérant entre cet axe et le bâti 2 un espace mis à profit pour agrandir la roue 15 de l'engrenage réducteur.We notice in the figure 3 that the clutch wheel 17 may have a total height much lower than in the case of the patent CH 352624 on the one hand thanks to the suppression of the circular groove and on the other hand because its stability is ensured by its attachment to the axis 18, supported in turn by sufficiently spaced bearings. This reduces the height of the disengagement device and its axis 18, releasing between this axis and the frame 2 a space used to enlarge the wheel 15 of the reduction gear.

Durant le fonctionnement normal de la montre, le mécanisme est dans l'état représenté en figure 3. La légère poussée axiale du ressort de rappel 26 contre l'extrémité du l'axe d'embrayage 18 maintient la roue d'embrayage 17 en appui contre la roue entraineuse de rochet 7, avec les dentures Breguet engagées l'une dans l'autre comme le montre le schéma de la figure 2. Quand la masse oscillante du remontage automatique tourne, elle fait tourner la denture Breguet 21 dans le sens de la flèche A, ce qui entraîne la denture Breguet 22 dans le sens de la flèche B par l'appui des faces verticales des dents et fait donc tourner la roue 7, le rochet 8 et l'arbre 10 pour remonter le ressort de barillet.During the normal operation of the watch, the mechanism is in the state represented in figure 3 . The slight axial thrust of the return spring 26 against the end of the clutch shaft 18 keeps the clutch wheel 17 bearing against the ratchet driving wheel 7, with the Breguet toothing engaged one inside the other as shown in the diagram of the figure 2 . When the oscillating weight of the automatic winding rotates, it rotates the Breguet toothing 21 in the direction of the arrow A, which causes the Breguet toothing 22 in the direction of the arrow B by the support of the vertical faces of the teeth and therefore makes turn the wheel 7, the ratchet 8 and the shaft 10 to refit the mainspring.

Cet état change quand on remonte manuellement la montre, car une telle opération fait tourner le rochet 8 et la roue entraineuse 7, alors que la roue d'embrayage 17 ne tourne généralement pas à ce moment-là. La roue 7 devient donc menante et la roue 17 est maintenue à l'arrêt par le reste du rouage, pour autant que l'effet du ressort 26 soit assez faible. Par le déplacement de la denture 22 dans le sens de la flèche B, les flancs faiblement inclinés des dentures Breguet 21 et 22 glissent les uns sur les autres en repoussant axialement la roue d'embrayage 17 contre la force du ressort 26, de sorte que le mécanisme de remontage automatique est momentanément débrayé jusqu'à ce que l'action de remontage manuel cesse. Le débrayage empêche que le remontage manuel fasse tourner le rouage de remontage automatique et entraîne ainsi à grande vitesse les roues à cliquets 11 et 12. Ensuite, le ressort 26 remet automatiquement le dispositif de débrayage 20 dans l'état embrayé après chaque passage de dents dans le dispositif de débrayage 20, donc il n'y a aucun risque de désarmer accidentellement le barillet.This state changes when the watch is manually raised, because such an operation rotates the ratchet 8 and the driving wheel 7, while the clutch wheel 17 does not turn generally at that time. The wheel 7 becomes driving and the wheel 17 is kept stopped by the rest of the train, as long as the effect of the spring 26 is quite weak. By moving the toothing 22 in the direction of the arrow B, the slightly inclined flanks of the Breguet teeth 21 and 22 slide over each other by axially pushing the clutch wheel 17 against the force of the spring 26, so that the automatic winding mechanism is momentarily disengaged until the manual winding action stops. The disengagement prevents the manual winding from rotating the automatic winding train and thus drives the ratchet wheels 11 and 12 at high speed. Then, the spring 26 automatically returns the disengaging device 20 to the engaged state after each passage of teeth. in the disengaging device 20, so there is no risk of accidentally disarm the barrel.

La figure 4 représente le cas d'une intervention manuelle d'un horloger pour débrayer le rouage de remontage automatique lorsqu'il est nécessaire de désarmer le barillet 9, par exemple lors d'un démontage du mouvement. Il suffit de surmonter la poussée du ressort 26 en exerçant une force axiale F sur l'extrémité 18a de l'axe 18 qui est saillante au-delà du palier correspondant 25, par exemple avec un outil 32 ou un poids, pendant qu'on tient la tige de remontoir pour que le barillet ne se désarme pas instantanément. Lorsque l'axe 18 descend comme on le voit dans le dessin, la roue entraineuse 7 est retenue par la plaque 4, la roue d'embrayage 17 reste en prise avec le pignon 16, les dentures Breguet 21 et 22 se dégagent complètement l'une de l'autre et la roue 7 se trouve débrayée. Le déplacement axial s'arrête par butée de la roue d'embrayage 17 contre le pont 3. L'horloger peut alors laisser tourner peu à peu la couronne de remontoir pour désarmer progressivement le barillet. On remarque que l'horloger n'a pas besoin de toucher le ressort 26 et ne risque pas de lui imposer une déformation excessive.The figure 4 represents the case of a manual intervention of a watchmaker to disengage the automatic winding train when it is necessary to disarm the barrel 9, for example during disassembly of the movement. It suffices to overcome the thrust of the spring 26 by exerting an axial force F on the end 18a of the axis 18 which protrudes beyond the corresponding bearing 25, for example with a tool 32 or a weight, while holding the winding stem so that the barrel does not disarm instantly. When the axis 18 descends as shown in the drawing, the driving wheel 7 is retained by the plate 4, the clutch wheel 17 remains engaged with the pinion 16, the Breguet teeth 21 and 22 are completely disengaged. one of the other and the wheel 7 is disengaged. The axial displacement stops by abutment of the clutch wheel 17 against the bridge 3. The watchmaker can then let gradually turn the winding crown to gradually disarm the barrel. Note that the watchmaker does not need to touch the spring 26 and is not likely to impose excessive deformation.

Au vu de l'exemple présenté ci-dessus, un homme du métier peut constater que la présente invention permet de réaliser un mécanisme de remontage automatique de montre avec une construction plus simple et fiable que l'art antérieur, tout en diminuant les pertes d'énergie par frottement et en gagnant de la place.In view of the example presented above, a person skilled in the art can see that the present invention makes it possible to realize an automatic watch winding mechanism with a simpler and more reliable construction than the prior art, while reducing the losses of energy by friction and gaining space.

Bien entendu, la construction du dispositif de débrayage peut différer de ce que représentent les dessins sans sortir du cadre de l'invention revendiquée ici. Par exemple, au lieu des dentures Breguet 21 et 22, on peut prévoir d'autres formes d'éléments d'accouplement conjugués, pourvu qu'au moins l'un de ces éléments comporte une partie en forme de rampe sur laquelle l'élément conjugué puisse glisser ou rouler pour repousser la roue d'embrayage contre la force du ressort dans l'un des sens de rotation du dispositif.Of course, the construction of the disengaging device may differ from what the drawings represent without departing from the scope of the invention claimed herein. For example, instead of the Breguet teeth 21 and 22, other forms of conjugated coupling elements may be provided, provided that at least one of these elements comprises a ramp-shaped part on which the element conjugate can slip or roll to push the clutch wheel against the force of the spring in one of the rotating directions of the device.

Une autre application d'un dispositif de débrayage vertical selon de l'invention consiste à l'incorporer à un rouage de remontage manuel, reliant donc une tige de remontoir au barillet à ressort en agissant par exemple sur le rochet 8 représenté dans les figures 3 et 4. Ce dispositif de débrayage peut être de construction analogue à celle de l'exemple précédent. Il peut coexister avec celui-là dans une montre automatique, empêchant alors que le remontage automatique fasse tourner la couronne de remontoir, fonction qui est assurée habituellement par un dispositif de débrayage latéral.Another application of a vertical disengagement device according to the invention consists in incorporating it into a manual winding train, thus connecting a winding stem to the spring barrel by acting for example on the ratchet 8 shown in FIGS. figures 3 and 4 . This disengaging device may be of similar construction to that of the previous example. It can coexist with that one in an automatic watch, thus preventing automatic winding rotates the winding crown, a function that is usually provided by a lateral disengagement device.

Un autre mode de réalisation de l'invention est illustré par la figure 5, qui représente schématiquement un rouage d'affichage du temps sur le cadran 40 d'une montre, avec une aiguille supplémentaire pour indiquer l'heure d'un second fuseau horaire. Un tube de centre 41 fixé à la platine 30 porte des éléments rotatifs concentriques comprenant : la chaussée 42 munie de l'aiguille des minutes (non représentée), un canon 43 muni de l'aiguille normale des heures (non représentée) et de la roue des heures 44, et un canon supplémentaire 45 muni d'une roue 46 et d'une aiguille de second fuseau horaire 47 qui coopère avec une graduation de vingt-quatre heures sur le cadran 40. La roue des heures 44, faisant deux tours par jour, est entraînée par le pignon de la chaussée 42 via un rouage de minuterie classique 48. Elle-même entraîne la roue de fuseau horaire 46 à la vitesse d'un tour par jour via un rouage de renvoi 49 qui comprend un dispositif de débrayage 50 selon la présente invention. Ainsi le rouage de renvoi 49 remplit tour à tour les deux fonctions de transmission démultipliée et de débrayage.Another embodiment of the invention is illustrated by the figure 5 , which schematically shows a time display wheel on the dial 40 of a watch, with an additional hand to indicate the time of a second time zone. A center tube 41 fixed to the plate 30 carries concentric rotary elements comprising: the floor 42 provided with the minute hand (not shown), a barrel 43 provided with the normal hour hand (not shown) and the hour wheel 44, and an additional barrel 45 provided with a wheel 46 and a second time zone needle 47 which cooperates with a twenty-four hour scale on the dial 40. The hour wheel 44, making two turns per day, is driven by the pinion of the floor 42 via a conventional timer wheel 48. It itself drives the time zone wheel 46 at the speed of one revolution per day via a gear wheel 49 which includes a device of declutching 50 according to the present invention. Thus the gear wheel 49 replenishes in turn the two functions of geared transmission and disengagement.

L'élément d'entrée du dispositif de débrayage est la roue d'embrayage 51, dont l'axe 52 est monté de manière rotative et coulissante dans des paliers 53 et 54 formés par des pierres dans la platine 30 et une plaque de maintien 55. L'axe 52 et la roue 51 sont poussés en permanence en direction du cadran par un ressort-lame 56 s'appliquant contre l'extrémité de l'axe 52. La denture de la roue 51 est assez large pour rester en prise avec la roue 44 quand l'axe 52 coulisse. L'élément de sortie du dispositif de débrayage est une roue entraîneuse 58 qui est en prise avec la roue de fuseau horaire 46 et avec un renvoi 60 faisant partie d'un correcteur de fuseau horaire. La roue 58 est pivotante sur l'axe 52 et retenue axialement entre la pierre 54 et un pont de limitation 61. Comme dans l'exemple précédent, les roues 51 et 58 du dispositif de débrayage 50 comportent des éléments d'accouplement respectifs disposés sur leurs flancs se faisant face et maintenus accouplés par la légère poussée axiale du ressort 56. Ces éléments sont constitués par exemple par des dentures d'embrayage à flancs inclinés symétriques, pour pouvoir transmettre la rotation de la roue des heures 44 à l'aiguille 47 dans les deux sens, notamment lorsqu'on met la montre à l'heure, et se débrayer dans les deux sens. Lors d'un changement de fuseau horaire, l'action de l'utilisateur sur le correcteur fait tourner le renvoi 60, la roue entraîneuse 58, la roue de fuseau horaire 46 et l'aiguille 47 dans un sens ou dans l'autre, tandis qu'une rotation correspondante de la roue d'embrayage 51 est empêchée par la roue des heures 44. Grâce aux surfaces inclinées des éléments d'accouplement du dispositif de débrayage, la roue d'embrayage 51 est repoussée à l'encontre de la poussée du ressort 56, si bien que l'indicateur de second fuseau horaire est ainsi débrayé momentanément du mouvement d'horlogerie et peut tourner manuellement par pas d'une heure (ou d'une demi-heure dans certains cas), les éléments d'accouplement constituant un crantage qui correspond aux fuseaux horaires successifs.The entry element of the disengaging device is the clutch wheel 51 whose axis 52 is rotatably and slidably mounted in bearings 53 and 54 formed by stones in the plate 30 and a holding plate 55. The shaft 52 and the wheel 51 are continuously urged toward the dial by a leaf spring 56 pressing against the end of the shaft 52. The toothing of the wheel 51 is wide enough to remain engaged with the wheel 51. the wheel 44 when the axis 52 slides. The output member of the disengagement device is a driving wheel 58 which is engaged with the time zone wheel 46 and with a return 60 forming part of a time zone corrector. The wheel 58 is pivotable on the axis 52 and retained axially between the stone 54 and a limiting bridge 61. As in the previous example, the wheels 51 and 58 of the clutch device 50 comprise respective coupling elements arranged on their flanks facing each other and held coupled by the slight axial thrust of the spring 56. These elements are constituted for example by clutch teeth with symmetrical inclined flanks, to be able to transmit the rotation of the hour wheel 44 to the needle 47 in both directions, especially when you put the watch on time, and to disengage in both directions. During a change of time zone, the action of the user on the corrector rotates the reference 60, the driving wheel 58, the time zone wheel 46 and the needle 47 in one direction or the other, while a corresponding rotation of the clutch wheel 51 is prevented by the hour wheel 44. Thanks to the inclined surfaces of the coupling elements of the disengaging device, the clutch wheel 51 is pushed back against the spring 56, so that the second time zone indicator is thus momentarily disengaged from the watch movement and can turn manually in steps of one hour (or half an hour in some cases), the elements of coupling constituting a notching which corresponds to the successive time zones.

Claims (10)

  1. Uncoupling device (20, 50) for a timepiece mechanism, including:
    - two coaxial wheels (17, 7; 51, 58) that can be coupled to each other in rotation in at least one direction owing to respective coupling elements (21, 22) arranged on opposite flanks of said wheels, wherein one of the coaxial wheels, called the coupling wheel (17, 51) is mobile in the axial direction;
    - a return spring (26, 56), arranged so as to bias said coupling wheel (17, 51) while tending to mesh the coupling elements (21; 22)
    characterized in that it further includes a sliding arbour (18, 52) that is mounted so as to rotate and slide in fixed bearings (24, 25; 53, 54) the coupling wheel (17, 51) being attached to said sliding arbour (18; 52).
  2. Device according to claim 1, characterized in that the return spring (26, 56) includes an elastic strip that abuts against one end of the sliding arbour (18, 52).
  3. Device according to claim 2, characterized in that the sliding arbour (18) includes, on the opposite side to the return spring, one end (18a) that projects relative to the corresponding bearing (25), for pushing said arbour manually to uncouple the device.
  4. Device according to any of the preceding claims, characterized in that the coupling elements include a Breguet toothing (21, 22), on at least one of said coaxial wheels (17, 7).
  5. Device according to any of the preceding claims, characterized in that said bearings (24, 25) are formed by timepiece jewels.
  6. Watch movement including an uncoupling device (20, 50) according to any of the preceding claims.
  7. Watch movement according to claim 6, characterized in that the uncoupling device (20) is incorporated in an automatic winding mechanism (1) that includes an oscillating mass and a gear train connecting the oscillating mass to a mainspring, wherein said gear train includes a reduction gear train (13, 14, 15, 16) arranged for rotating in a single direction and the uncoupling device (20).
  8. Watch movement according to claim 7, characterized in that said gear train includes a direction reverser device (11, 12) upstream of the reduction gear (13, 14, 15, 16).
  9. Watch movement according to claim 6, characterized in that the uncoupling device is incorporated in a manual winding train connecting a winding stem to a sprung barrel.
  10. Watch movement according to claim 6, characterized in that the uncoupling device (50) is incorporated in a gear train (49) that connects an hour wheel (44) to a second time zone indicator (47).
EP09154219.1A 2009-03-03 2009-03-03 Disengaging device for timepiece mechanism, and watch movement comprising this device Active EP2226687B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP09154219.1A EP2226687B1 (en) 2009-03-03 2009-03-03 Disengaging device for timepiece mechanism, and watch movement comprising this device
ES09154219T ES2423285T3 (en) 2009-03-03 2009-03-03 Clutch release mechanism for clockwork, and clock movement comprising this device
JP2010042166A JP5322976B2 (en) 2009-03-03 2010-02-26 Timepiece mechanism separation device and timepiece having the separation device
US12/715,913 US8506157B2 (en) 2009-03-03 2010-03-02 Uncoupling device for a timepiece mechanism and a watch movement comprising the same
CN2010101344018A CN101825861B (en) 2009-03-03 2010-03-02 Disengaging device for timepiece mechanism, and watch movement comprising this device
HK11102114.4A HK1148081A1 (en) 2009-03-03 2011-03-02 Uncoupling device for a timepiece mechanism and a watch movement comprising the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09154219.1A EP2226687B1 (en) 2009-03-03 2009-03-03 Disengaging device for timepiece mechanism, and watch movement comprising this device

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EP2226687A1 EP2226687A1 (en) 2010-09-08
EP2226687B1 true EP2226687B1 (en) 2013-05-15

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US (1) US8506157B2 (en)
EP (1) EP2226687B1 (en)
JP (1) JP5322976B2 (en)
CN (1) CN101825861B (en)
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HK (1) HK1148081A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102848166B (en) * 2012-09-24 2015-04-01 厦门大学 Disassembling machine for pointers of pneumatic watch movement
JP1520216S (en) * 2013-06-25 2015-03-30
EP3361323B1 (en) 2017-02-13 2020-01-29 Rolex Sa Winding system of a timepiece
JP7071831B2 (en) * 2018-01-30 2022-05-19 セイコーインスツル株式会社 Hoisting force transmission mechanism, movement, and mechanical watch
CN118092113A (en) 2022-11-25 2024-05-28 劳力士有限公司 Coupling device for a timepiece

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
CH352624A (en) 1958-02-27 1961-02-28 Roamer Watch Co Sa Self-winding watch
JP2575615B2 (en) * 1985-03-29 1997-01-29 三菱重工業株式会社 Damping gear
JPH0227593U (en) * 1988-08-12 1990-02-22
JP2955993B2 (en) * 1998-01-07 1999-10-04 セイコーインスツルメンツ株式会社 Transmission wheel, method of manufacturing the transmission wheel, and automatic winding train structure
EP1046965B1 (en) * 1999-04-23 2004-08-18 Rolex Sa Self-winding watch
JP4846184B2 (en) * 2000-11-10 2011-12-28 シチズンホールディングス株式会社 Electric clock timing mechanism
EP1406131A1 (en) * 2002-10-01 2004-04-07 Manufacture Roger Dubuis S.A. Mechanical device for the display of hours and minutes
JP2004170270A (en) * 2002-11-20 2004-06-17 Seiko Instruments Inc Self-winding watch having adjusting apparatus
DE602006007807D1 (en) * 2006-04-07 2009-08-27 Eta Sa Mft Horlogere Suisse Mechanical changer for rotating a wheel from a single direction

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US8506157B2 (en) 2013-08-13
CN101825861A (en) 2010-09-08
CN101825861B (en) 2013-03-06
EP2226687A1 (en) 2010-09-08
ES2423285T3 (en) 2013-09-19
JP2010204100A (en) 2010-09-16
US20100226216A1 (en) 2010-09-09
HK1148081A1 (en) 2011-08-26
JP5322976B2 (en) 2013-10-23

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