EP2503406B1 - Shock-absorber device for clock mechanism - Google Patents

Shock-absorber device for clock mechanism Download PDF

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Publication number
EP2503406B1
EP2503406B1 EP20110159125 EP11159125A EP2503406B1 EP 2503406 B1 EP2503406 B1 EP 2503406B1 EP 20110159125 EP20110159125 EP 20110159125 EP 11159125 A EP11159125 A EP 11159125A EP 2503406 B1 EP2503406 B1 EP 2503406B1
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EP
European Patent Office
Prior art keywords
platform
connecting member
locking
designed
mobile
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.)
Not-in-force
Application number
EP20110159125
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German (de)
French (fr)
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EP2503406A1 (en
Inventor
Sylvain Le Hirez
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De Grisogono SA
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De Grisogono SA
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Publication date
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Priority to EP20110159125 priority Critical patent/EP2503406B1/en
Publication of EP2503406A1 publication Critical patent/EP2503406A1/en
Application granted granted Critical
Publication of EP2503406B1 publication Critical patent/EP2503406B1/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/02—Devices allowing the motion of a rotatable part in only one direction
    • G04B11/04—Pawl constructions therefor, e.g. pawl secured to an oscillating member actuating a ratchet

Definitions

  • the present invention relates to a device for locking a clock movement mobile comprising a board, intended to be rotatably mounted on a frame of the watch movement between first and second positions, via a shaft.
  • the board has a locking nose designed to cooperate with the mobile to lock it in the first position and leave it free in the second position.
  • the ratchet generally has the function of allowing the movement of the wheel in one direction only.”
  • the ratchet plate pivots between a first position, in which its nose cooperates with the toothing of the mobile to lock it, and a second position, in which the mobile is free to turn.
  • CH 140164 describes movements of rotation and translation of a board located along two different axes.
  • the mobile moves at high speed between two successive locks and therefore has a significant torque at the place where the nozzle must act.
  • the locking device and / or the toothing of the mobile could suffer damage or rapid wear, which is not desirable.
  • a main object of the present invention is to propose a new construction of a locking device making it possible to overcome the drawbacks mentioned above, by proposing a locking device which is both reliable and which makes it possible to lock a mobile having a significant torque at the moment when its beak must act on it to lock it.
  • the present invention relates more particularly to a locking device of the type mentioned above, characterized in that it further comprises a connecting member mechanically connecting the board and the shaft, and by the fact that the board is arranged to be able to move in translation with reference to the connecting member, between compressed and spaced relative positions, an elastic member being arranged to act on the board and on the connecting member to tend to position them in position. their relative position discarded.
  • the locking device includes a damping system for limiting the stresses applied to both the spout and the toothing during stops mobile.
  • the board is moved with reference to the shaft, in a first step, to be placed in a compressed relative position, by compression of the elastic member .
  • the resilient member returns to its idle state, in which it tends to position the board and the connecting member in their spaced relative position.
  • the board has a central opening in which are housed the connecting member and the shaft.
  • a first element among the connecting member and the board comprises a first arm, located in the central opening and on which is engaged a helical spring whose first end is arranged in abutment against the body connecting and a second end is arranged in abutment against the board.
  • the other element comprises a second arm arranged substantially in alignment with the first arm.
  • the shaft comprises a foot intended to be mounted on the frame of the watch movement, the latter having a base forming a guiding surface for the board.
  • a tube extends from the board, the latter being arranged to cooperate with a hole adapted, formed in the connecting member.
  • the tube preferably has a thread in which engages a screw arranged to ensure an axial retention of the connecting member.
  • the present invention also relates to a mechanism for a watch movement comprising a locking device meeting the above characteristics, wherein the spout is arranged to cooperate with the toothing of a barrel, preferably its drum.
  • the mechanism comprises an elastic member arranged to exert a force on the board and tend to position it in the first position, in which the locking nose cooperates with the toothing.
  • the mechanism further comprises a control member arranged to act on the board and move it from its first position to its second position.
  • the invention also relates to a timepiece equipped with a mechanism that meets the characteristics that have just been exhibited.
  • FIG. 1 represents a simplified front view of a watch movement according to a preferred embodiment of the present invention, in a bridge side view;
  • the figure 2 represents a simplified perspective view of a first construction detail of the watchmaking movement of the figure 1 , seen from a first side;
  • the figure 3 represents a simplified perspective view of the construction detail of the figure 2 , seen from his second face, and
  • the figure 4 represents a simplified and exploded perspective view of part of the watchmaking movement of the figure 1 .
  • the figure 1 represents a simplified front view of a watch movement according to a preferred embodiment of the present invention, in a bridge-side view.
  • the watch movement is intended for the design of a timepiece comprising a rotary dial (not shown) and therefore comprises a drive device of this rotary dial, housed in the bottom of the watch.
  • the timepiece illustratively non-limiting.
  • the watch movement comprises a barrel 1 dedicated to driving the rotary dial and arranged substantially in the center of the movement.
  • the latter furthermore comprises a device for controlling the drive device of the dial, visible on the part to the left of the figure 1 , a device for winding the mainspring, visible on the part to the right of the figure 1 and a safety device, the structure and operation of which will not be detailed here since it does not contribute directly to the implementation of the invention.
  • a shaft 2 for transmitting the energy supplied by the barrel to drive the mobile dial in rotation is also visible in the upper right corner of the figure 1 .
  • the barrel 1 comprises a toothed drum 4 secured to the outer end of a barrel spring 5.
  • a winding ratchet (marked with the numeral 6 on the figure 2 ) is integral with the inner end of the mainspring.
  • a conventional spring ratchet 8 is arranged to prevent the winding ratchet from rotating clockwise, and to allow it to rotate freely. in the anticlockwise rotation direction corresponding to the winding of the mainspring, in a known manner.
  • a first latch 10 locks the drum 4 to prevent it from rotating in the anti-clockwise direction of rotation.
  • the winding device comprises a rack 12, actuated in translation by a pusher 14 intended to be itself actuated by a user, via an external pusher (not shown).
  • the pusher 14 is pivotally mounted on a bridge, by means of a screw 15.
  • the rack 12 has a toothing 19 arranged in engagement with a first wheel (reference numeral 17 on the figure 4 ) of a conventional unidirectional transmission device.
  • this first wheel transmits its rotational movements to a second wheel of the device only in one direction, here in the direction of rotation anti-clockwise, while it rotates empty in the direction of clockwise rotation.
  • the second wheel meshes with a pinion 21 of an adjacent return whose wheel 22 meshes with the winding ratchet 6.
  • This control device comprises a pusher 24 rotatably mounted on the frame of the watch movement, by means of a screw 25. It will be noted that the return spring 23 has two symmetrical arms and is arranged to also act on the pusher 24. The latter is intended to be actuated by a user, via a second external pusher (not shown).
  • the pusher 24 is integral with a control lever 26 comprising an arm 27 slightly bent and connected to a base 28, by means of a screw 29.
  • the base is pivotally mounted on the frame of the watch movement by a first screw 30, while being guided in its rotational movements by a second screw 32 fixed in the frame but arranged through a short slot 34.
  • the base 28 supports an actuating member 36 fixed on it by screws 38, tightened on screw feet and housed in slots adapted to the actuating member, allowing the latter to move in translation with reference at the base 28, between first and second positions, respectively active and inactive.
  • An elastic member 40 is also provided to apply a force on a finger 41 integral with the actuating member to tend to push it back into its active position, that is to say advanced relative to the base 28.
  • L elastic member 40 is mounted on a screw 42 integral with the base 28 to allow adjustment of the force it applies to the finger 41.
  • the actuating member 36 carries first and second fingers 44, 45 arranged to protrude from the face of the base 28 opposite that on the side of the arm 27. Each of the fingers has an end inclined relative to the direction moving the actuating member with reference to the base 28.
  • a pin 46 integral with the base 28, emerges between the two fingers 44, 45 to define a bearing surface intended to cooperate with an additional resilient member 48, mounted on the frame of the watch movement to apply a restoring force on the lever 26 and push it towards its rest position, that is to say towards the pusher 24.
  • the first and second fingers 44 and 45 are arranged to cooperate respectively with the first latch 10 and a second latch 50.
  • the first latch 10 comprises a plate 51 rotatably mounted on a shaft 52 secured to the frame of the watch movement, with the interposition of a helical spring 54 defining a damper function, as will be described in more detail in connection with the figure 4 .
  • the board 51 comprises a first nose 56 intended to cooperate with the first finger 44, and a second nose 58 intended to cooperate with teeth 60 formed on a ring 62, integral with the drum 4 of the barrel 1, to lock the latter in the anti-clockwise rotation direction on the view of the figure 1 , as previously stated.
  • the ring 62 has four teeth 60 regularly distributed. Thus, each time the drum is released, it performs a quarter turn. When it is desired that this rotation of the drum takes place at a high speed, the barrel spring 5 then being calibrated in a suitable manner, the shock resulting from the locking of the ring 62 by the cooperation between the spout 58 and a tooth 60 can be violent. Thus, mounting the first latch 10 on the frame via a damper limits the risk of premature wear constituents of the watch movement according to the present invention.
  • the barrel spring 5 has a high torque, it may be necessary to provide the second latch 50 to secure the locking of the drum 4 by the first latch 10, eliminating the risk of inadvertent release of the latter. Due to its arrangement, the second latch 50 prevents the first latch 10 from disengaging from the tooth 60 with which it is engaged without further external action.
  • Soldering the barrel spring drum also prevents some damage that might be experienced by the components of the watch movement during these shocks.
  • the finger 45 of the actuating member 36 is intended to actuate the second latch 50 via an abutment surface 64 formed on the latter. More precisely, when the push-button 24 is actuated by a user, the base 28 of the lever 26 is rotated, as is the actuating member 36 of which the fingers 44 and 45 will act respectively on the first and second locks, the finger 45 acting on the second lock before the finger 44 acts on the first lock. Thus, the safety of the first latch is neutralized before it is actuated to release the barrel drum.
  • a return spring 66 having three arms acts on the first and second locks, to exert on them forces tending to position them in their active locking position, and on the pawl 8 of the winding ratchet, so known.
  • a first safety device is provided.
  • it has the form of a disengaging member 68 rotatably mounted on the frame of the watch movement, between the barrel drum and the lever 26.
  • the disengaging member 68 comprises a toothed pinion 70 integral with a cam 72, of oblong shape and arranged eccentrically with reference to the axis of rotation of the pinion gear.
  • the latter is dimensioned and toothed so that it turns on itself when the barrel 4 is a quarter turn.
  • the fingers release the two latches 10 and 50 during the rotation of the drum 4, even when the pusher 24 is held down by the user, guaranteeing in all cases the locking of the drum barrel after a predefined stroke, a quarter of a turn in the embodiment shown in a non-limiting manner.
  • the drum When the drum is released, it also drives a first transmission mobile 74 kinematically connected to a mobile, preferably display or contributing to the appearance of the room.
  • the figure 4 represents a simplified and exploded perspective view of part of the watchmaking movement of the figure 1 . More specifically, the structure of the lock 10 is visible in this figure.
  • the board 51 of the lock has a central opening 80 intended to house the shaft 52.
  • the shaft 52 is composed of different elements.
  • a foot-screw 82 is housed in the frame of the watch movement, for example being driven or screwed.
  • the foot 82 comprises a substantially cylindrical base 84, intended to form a guide surface for the board 51.
  • a tube 86 extends from the base 84, the latter having a tapping intended to receive the thread of a screw root 88 provided to ensure the axial retention of the board 51.
  • a bearing washer 90 acting as a connecting member, is interposed between the head of the screw 88 and the board 51 to facilitate the pivoting of the board.
  • a first arm 91 formed in one piece with the board, extends inside the central opening in the direction of the shaft 52 and that, on the other hand, a second arm 92 extends from the washer 90, being substantially aligned with the first arm.
  • the two arms 91, 92 define a support for the coil spring 54.
  • Washers 94 are interposed between the ends of the spring and, on the one hand, the board and, on the other hand, the connecting member.
  • the spring is prestressed, in the relative position spaced, to ensure the maintenance of the board and the connecting member (and therefore the shaft) in this position.
  • these two elements momentarily pass into a compressed relative position before returning to the relative position discarded, because the force exerted by the toothing of the barrel on the spout at the moment of impact exceeds that of the spring 54.
  • the barrel can be used to ensure the operation of a striking mechanism as an alternative to a mobile dial.
  • the forms specifically illustrated and described for the various constituents are not limiting.
  • the helical spring 54 could have a shape other than that illustrated without departing from the scope of the invention, or it is still possible to provide that the disengaging member only acts indirectly on the actuating member. It is also possible to provide that the teeth 60 cooperating with the first lock are not evenly distributed around the ring 62.

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  • General Physics & Mathematics (AREA)
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Description

Domaine techniqueTechnical area

La présente invention concerne un dispositif de verrouillage d'un mobile de mouvement horloger comportant une planche, destinée à être montée rotative sur un bâti du mouvement horloger entre des première et seconde positions, par l'intermédiaire d'un arbre. La planche présente un bec de verrouillage destiné à coopérer avec le mobile pour le verrouiller dans la première position et le laisser libre dans la seconde position.The present invention relates to a device for locking a clock movement mobile comprising a board, intended to be rotatably mounted on a frame of the watch movement between first and second positions, via a shaft. The board has a locking nose designed to cooperate with the mobile to lock it in the first position and leave it free in the second position.

Etat de la techniqueState of the art

Des mécanismes de ce type ont déjà été divulgués dans l'art antérieur.Mechanisms of this type have already been disclosed in the prior art.

A titre d'exemple, on peut se référer au cliquet, dont une définition est donnée dans le Dictionnaire professionnel illustré de l'horlogerie de G.-A. Berner, édité par la Société du Journal La Suisse Horlogère SA, rue d'Argent 6, CH-2501 Bienne (disponible à l'adresse Internet suivante: http://www.fhs.ch/berner/?l=fr ): "Levier muni d'un bec qui pénètre dans la denture d'une roue sous l'action d'un ressort. Le cliquet a généralement pour fonction de permettre le mouvement de la roue dans un sens seulement.". La planche du cliquet pivote entre une première position, dans laquelle son bec coopère avec la denture du mobile pour le verrouiller, et une seconde position, dans laquelle le mobile est libre de tourner.By way of example, reference can be made to the ratchet, a definition of which is given in the Professional illustrated dictionary of G.-A. Berner, published by the Swiss Watch Company, Horlogere SA, rue d'Argent 6, CH-2501 Biel (available at the following Internet address: http://www.fhs.ch/berner/?l=en ) "A lever with a spout that penetrates the toothing of a wheel under the action of a spring.The ratchet generally has the function of allowing the movement of the wheel in one direction only." The ratchet plate pivots between a first position, in which its nose cooperates with the toothing of the mobile to lock it, and a second position, in which the mobile is free to turn.

CH 140164 décrit des mouvements de rotation et de translation d'une planche localisés suivant deux axes différents. CH 140164 describes movements of rotation and translation of a board located along two different axes.

Dans le cadre de certaines applications particulières, il est possible que le mobile se déplace à grande vitesse entre deux verrouillages successifs et présente par conséquent un couple important à l'endroit où le bec doit agir. Dans ce cas, sans précaution spécifique, le dispositif de verrouillage et/ou la denture du mobile pourraient subir des dommages ou une usure rapide, ce qui n'est pas souhaitable.In the context of certain specific applications, it is possible that the mobile moves at high speed between two successive locks and therefore has a significant torque at the place where the nozzle must act. In this case, without specific precautions, the locking device and / or the toothing of the mobile could suffer damage or rapid wear, which is not desirable.

Divulgation de l'inventionDisclosure of the invention

Un but principal de la présente invention est de proposer une nouvelle construction de dispositif de verrouillage permettant de pallier aux inconvénients mentionnés ci-dessus, en proposant un dispositif de verrouillage qui soit à la fois fiable et qui permette de verrouiller un mobile présentant un couple important au moment où son bec doit agir sur lui pour le verrouiller.A main object of the present invention is to propose a new construction of a locking device making it possible to overcome the drawbacks mentioned above, by proposing a locking device which is both reliable and which makes it possible to lock a mobile having a significant torque at the moment when its beak must act on it to lock it.

A cet effet, la présente invention concerne plus particulièrement un dispositif de verrouillage du type mentionné plus haut, caractérisé par le fait qu'il comporte en outre un organe de liaison reliant mécaniquement la planche et l'arbre, et par le fait que la planche est agencée pour pouvoir se déplacer en translation en référence à l'organe de liaison, entre des positions relatives comprimée et écartée, un organe élastique étant agencé de manière à agir sur la planche et sur l'organe de liaison pour tendre à les positionner dans leur position relative écartée.To this end, the present invention relates more particularly to a locking device of the type mentioned above, characterized in that it further comprises a connecting member mechanically connecting the board and the shaft, and by the fact that the board is arranged to be able to move in translation with reference to the connecting member, between compressed and spaced relative positions, an elastic member being arranged to act on the board and on the connecting member to tend to position them in position. their relative position discarded.

Grâce à ces caractéristiques, le dispositif de verrouillage selon la présente invention inclut un système amortisseur permettant de limiter les contraintes appliquées à la fois sur le bec et sur la denture lors des arrêts du mobile.Thanks to these characteristics, the locking device according to the present invention includes a damping system for limiting the stresses applied to both the spout and the toothing during stops mobile.

En effet, lors de l'action du bec sur le mobile pour arrêter ce dernier, la planche est déplacée en référence à l'arbre, dans un premier temps, pour se placer dans une position relative comprimée, par compression de l'organe élastique. Dans un second temps, l'organe élastique reprend son état au repos, dans lequel il tend à positionner la planche et l'organe de liaison dans leur position relative écartée.Indeed, during the action of the nose on the mobile to stop the latter, the board is moved with reference to the shaft, in a first step, to be placed in a compressed relative position, by compression of the elastic member . In a second step, the resilient member returns to its idle state, in which it tends to position the board and the connecting member in their spaced relative position.

Selon un mode de réalisation préféré, la planche présente une ouverture centrale dans laquelle sont logés l'organe de liaison et l'arbre.According to a preferred embodiment, the board has a central opening in which are housed the connecting member and the shaft.

On peut avantageusement prévoir qu'un premier élément parmi l'organe de liaison et la planche comporte un premier bras, situé dans l'ouverture centrale et, sur lequel est engagé un ressort hélicoïdal dont une première extrémité est agencée en appui contre l'organe de liaison et une seconde extrémité est agencée en appui contre la planche. En outre, on peut prévoir que l'autre élément comporte un second bras agencé sensiblement dans l'alignement du premier bras.It can advantageously be provided that a first element among the connecting member and the board comprises a first arm, located in the central opening and on which is engaged a helical spring whose first end is arranged in abutment against the body connecting and a second end is arranged in abutment against the board. In addition, it can be provided that the other element comprises a second arm arranged substantially in alignment with the first arm.

Selon un mode de réalisation préféré, l'arbre comprend un pied destiné à être monté sur le bâti du mouvement horloger, celui-ci présentant une base formant une surface de guidage pour la planche. Un tube s'étend à partir de la planche, celui-ci étant agencé pour coopérer avec un trou adapté, ménagé dans l'organe de liaison. De plus, le tube présente préférablement un taraudage dans lequel s'engage une vis agencée pour assurer un maintien axial de l'organe de liaison.According to a preferred embodiment, the shaft comprises a foot intended to be mounted on the frame of the watch movement, the latter having a base forming a guiding surface for the board. A tube extends from the board, the latter being arranged to cooperate with a hole adapted, formed in the connecting member. In addition, the tube preferably has a thread in which engages a screw arranged to ensure an axial retention of the connecting member.

La présente invention concerne également un mécanisme pour mouvement horloger comportant un dispositif de verrouillage répondant aux caractéristiques ci-dessus, dans lequel le bec est agencé pour coopérer avec la denture d'un barillet, préférablement de son tambour.The present invention also relates to a mechanism for a watch movement comprising a locking device meeting the above characteristics, wherein the spout is arranged to cooperate with the toothing of a barrel, preferably its drum.

On peut également prévoir que le mécanisme comporte un organe élastique agencé pour exercer une force sur la planche et tendre à la positionner dans la première position, dans laquelle le bec de verrouillage coopère avec la denture.It can also be provided that the mechanism comprises an elastic member arranged to exert a force on the board and tend to position it in the first position, in which the locking nose cooperates with the toothing.

De manière préférée, le mécanisme comporte en outre un organe de commande agencé pour agir sur la planche et la faire passer de sa première position à sa seconde position.Preferably, the mechanism further comprises a control member arranged to act on the board and move it from its first position to its second position.

L'invention concerne également une pièce d'horlogerie munie d'un mécanisme répondant aux caractéristiques qui viennent d'être exposées.The invention also relates to a timepiece equipped with a mechanism that meets the characteristics that have just been exhibited.

Brève description des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description détaillée d'un mode de réalisation préféré qui suit, faite en référence aux dessins annexés donnés à titre d'exemples non limitatifs et dans lesquels:Other features and advantages of the present invention will appear more clearly on reading the detailed description of a preferred embodiment which follows, made with reference to the accompanying drawings given by way of non-limiting examples and in which:

- la figure 1 représente une vue de face simplifiée d'un mouvement horloger selon un mode de réalisation préféré de la présente invention, dans une vue côté ponts;- the figure 1 represents a simplified front view of a watch movement according to a preferred embodiment of the present invention, in a bridge side view;

- la figure 2 représente une vue en perspective simplifiée d'un premier détail de construction du mouvement horloger de la figure 1, vu depuis une première face;- the figure 2 represents a simplified perspective view of a first construction detail of the watchmaking movement of the figure 1 , seen from a first side;

- la figure 3 représente une vue en perspective simplifiée du détail de construction de la figure 2, vu depuis sa seconde face, et- the figure 3 represents a simplified perspective view of the construction detail of the figure 2 , seen from his second face, and

- la figure 4 représente une vue en perspective simplifiée et éclatée d'une partie du mouvement horloger de la figure 1.- the figure 4 represents a simplified and exploded perspective view of part of the watchmaking movement of the figure 1 .

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

La figure 1 représente une vue de face simplifiée d'un mouvement horloger selon un mode de réalisation préféré de la présente invention, dans une vue côté ponts.The figure 1 represents a simplified front view of a watch movement according to a preferred embodiment of the present invention, in a bridge-side view.

Selon le présent mode de réalisation, le mouvement horloger est destiné à la conception d'une pièce d'horlogerie comportant un cadran rotatif (non représenté) et comprend de ce fait un dispositif d'entraînement de ce cadran rotatif, logé dans le fond de la pièce d'horlogerie, de manière illustrative non limitative.According to the present embodiment, the watch movement is intended for the design of a timepiece comprising a rotary dial (not shown) and therefore comprises a drive device of this rotary dial, housed in the bottom of the watch. the timepiece, illustratively non-limiting.

Un exemple d'une telle pièce d'horlogerie est divulgué dans le brevet EP 1840680 B1 , au nom de la Demanderesse.An example of such a timepiece is disclosed in the patent EP 1840680 B1 , in the name of the Applicant.

Il apparaît de la figure 1 que le mouvement horloger comprend un barillet 1 dédié à l'entraînement du cadran rotatif et agencé sensiblement au centre du mouvement.It appears from the figure 1 that the watch movement comprises a barrel 1 dedicated to driving the rotary dial and arranged substantially in the center of the movement.

Ce dernier comporte par ailleurs un dispositif de commande du dispositif d'entraînement du cadran, visible sur la partie à gauche de la figure 1, un dispositif de remontage du ressort de barillet, visible sur la partie à droite de la figure 1, ainsi qu'un dispositif de sécurité, dont la structure et le fonctionnement ne seront pas détaillés ici puisqu'il ne contribue pas directement à la mise en oeuvre de l'invention.The latter furthermore comprises a device for controlling the drive device of the dial, visible on the part to the left of the figure 1 , a device for winding the mainspring, visible on the part to the right of the figure 1 and a safety device, the structure and operation of which will not be detailed here since it does not contribute directly to the implementation of the invention.

Un arbre 2 de transmission de l'énergie fournie par le barillet pour entraîner le cadran mobile en rotation est également visible dans le coin supérieur droit de la figure 1.A shaft 2 for transmitting the energy supplied by the barrel to drive the mobile dial in rotation is also visible in the upper right corner of the figure 1 .

La construction du dispositif de remontage va être décrite plus en détail, à présent, en relation avec la figure 1.The construction of the winding device will be described in more detail, now, in connection with the figure 1 .

Le barillet 1 comporte un tambour 4 denté solidaire de l'extrémité externe d'un ressort 5 de barillet. De manière avantageuse non limitative, il peut être préférable de rendre le ressort et le tambour solidaires l'un de l'autre, par exemple par soudage, pour des raisons qui seront exposées plus loin. Un rochet de remontage (repéré avec la référence numérique 6 sur la figure 2) est solidaire de l'extrémité interne du ressort de barillet. Un cliquet à ressort 8 conventionnel est agencé pour empêcher le rochet de remontage de tourner dans le sens horaire, et le laisser libre de tourner dans le sens de rotation anti-horaire correspondant au remontage du ressort de barillet, de manière connue.The barrel 1 comprises a toothed drum 4 secured to the outer end of a barrel spring 5. Advantageously, not limiting, it may be preferable to make the spring and the drum integral with each other, for example by welding, for reasons which will be explained later. A winding ratchet (marked with the numeral 6 on the figure 2 ) is integral with the inner end of the mainspring. A conventional spring ratchet 8 is arranged to prevent the winding ratchet from rotating clockwise, and to allow it to rotate freely. in the anticlockwise rotation direction corresponding to the winding of the mainspring, in a known manner.

Par ailleurs, un premier verrou 10, selon un mode de réalisation préféré de la présente invention et dont le fonctionnement sera exposé plus loin, verrouille le tambour 4 pour l'empêcher de tourner dans le sens de rotation anti-horaire.Furthermore, a first latch 10, according to a preferred embodiment of the present invention and whose operation will be explained later, locks the drum 4 to prevent it from rotating in the anti-clockwise direction of rotation.

Le dispositif de remontage comprend une crémaillère 12, actionnée en translation par un poussoir 14 destiné à être lui-même actionné par un utilisateur, par l'intermédiaire d'un poussoir externe (non illustré). Le poussoir 14 est monté pivotant sur un pont, au moyen d'une vis 15.The winding device comprises a rack 12, actuated in translation by a pusher 14 intended to be itself actuated by a user, via an external pusher (not shown). The pusher 14 is pivotally mounted on a bridge, by means of a screw 15.

La crémaillère 12 présente une denture 19 agencée en prise avec une première roue (référence numérique 17 sur la figure 4) d'un dispositif de transmission unidirectionnelle 20 conventionnel. De manière connue, cette première roue ne transmet ses mouvements de rotation à une seconde roue du dispositif que dans un seul sens, ici dans le sens de rotation anti-horaire, tandis qu'elle tourne à vide dans le sens de rotation horaire.The rack 12 has a toothing 19 arranged in engagement with a first wheel (reference numeral 17 on the figure 4 ) of a conventional unidirectional transmission device. In a known manner, this first wheel transmits its rotational movements to a second wheel of the device only in one direction, here in the direction of rotation anti-clockwise, while it rotates empty in the direction of clockwise rotation.

La seconde roue engrène avec un pignon 21 d'un renvoi adjacent dont la roue 22 engrène avec le rochet de remontage 6.The second wheel meshes with a pinion 21 of an adjacent return whose wheel 22 meshes with the winding ratchet 6.

Ainsi, lorsque la crémaillère 12 est déplacée vers le haut de la figure 1, en réponse à une pression d'un utilisateur sur le poussoir externe correspondant, elle fait tourner le rochet de remontage dans le sens de rotation anti-horaire, pour recharger le ressort de barillet. Lorsque le poussoir externe est libéré par l'utilisateur, la crémaillère redescend, sous l'effet d'un ressort de rappel spécifique (référence numérique 23 sur la figure 2) sans entraîner le pignon 21, donc sans entraîner le rochet de remontage.So when the rack 12 is moved up the figure 1 in response to pressure from a user on the corresponding external pusher, it rotates the winding ratchet in the anti-clockwise direction to reload the mainspring. When the external pusher is released by the user, the rack descends, under the effect of a specific return spring (reference numeral 23 on the figure 2 ) without driving the gear 21, so without driving the ratchet reassembly.

Un exemple illustratif et non limitatif de dispositif de commande, destiné à actionner le dispositif d'entraînement du cadran rotatif, va à présent être détaillé en relation avec les figures 2 et 3, illustrant sa construction dans des vues en perspective simplifiées correspondant respectivement à des première et seconde faces.An illustrative and nonlimiting example of a control device, intended to actuate the drive device of the rotary dial, will now be detailed in relation to the figures 2 and 3 , illustrating its construction in simplified perspective views respectively corresponding to first and second faces.

Ce dispositif de commande comporte un poussoir 24 monté rotatif sur le bâti du mouvement horloger, au moyen d'une vis 25. On notera que le ressort de rappel 23 présente deux bras symétriques et est agencé pour agir également sur le poussoir 24. Ce dernier est destiné à être actionné par un utilisateur, par l'intermédiaire d'un second poussoir externe (non illustré).This control device comprises a pusher 24 rotatably mounted on the frame of the watch movement, by means of a screw 25. It will be noted that the return spring 23 has two symmetrical arms and is arranged to also act on the pusher 24. The latter is intended to be actuated by a user, via a second external pusher (not shown).

Le poussoir 24 est solidaire d'un levier de commande 26 comprenant un bras 27 légèrement coudé et relié à une base 28, au moyen d'une vis 29. La base est montée pivotante sur le bâti du mouvement horloger par une première vis 30, tout en étant guidée dans ses déplacements en rotation par une seconde vis 32 fixée dans le bâti mais disposée au travers d'une courte fente 34.The pusher 24 is integral with a control lever 26 comprising an arm 27 slightly bent and connected to a base 28, by means of a screw 29. The base is pivotally mounted on the frame of the watch movement by a first screw 30, while being guided in its rotational movements by a second screw 32 fixed in the frame but arranged through a short slot 34.

La base 28 supporte un organe d'actionnement 36 fixé sur elle par des vis 38, serrées sur des pieds-vis et, logées dans des fentes adaptées de l'organe d'actionnement, permettant à ce dernier de se déplacer en translation en référence à la base 28, entre des première et seconde positions, respectivement active et inactive. Un organe élastique 40 est par ailleurs prévu pour appliquer une force sur un doigt 41 solidaire de l'organe d'actionnement pour tendre à le repousser dans sa position active, c'est-à-dire avancée par rapport à la base 28. L'organe élastique 40 est monté sur une vis 42 solidaire de la base 28 pour permettre un ajustement de la force qu'il applique sur le doigt 41.The base 28 supports an actuating member 36 fixed on it by screws 38, tightened on screw feet and housed in slots adapted to the actuating member, allowing the latter to move in translation with reference at the base 28, between first and second positions, respectively active and inactive. An elastic member 40 is also provided to apply a force on a finger 41 integral with the actuating member to tend to push it back into its active position, that is to say advanced relative to the base 28. L elastic member 40 is mounted on a screw 42 integral with the base 28 to allow adjustment of the force it applies to the finger 41.

L'organe d'actionnement 36 porte des premier et second doigts 44, 45 disposés de manière à dépasser de la face de la base 28 opposée à celle située du côté du bras 27. Chacun des doigts présente une extrémité inclinée par rapport à la direction de déplacement de l'organe d'actionnement en référence à la base 28.The actuating member 36 carries first and second fingers 44, 45 arranged to protrude from the face of the base 28 opposite that on the side of the arm 27. Each of the fingers has an end inclined relative to the direction moving the actuating member with reference to the base 28.

Une goupille 46, solidaire de la base 28, émerge entre les deux doigts 44, 45 pour définir une surface d'appui destinée à coopérer avec un organe élastique supplémentaire 48, monté sur le bâti du mouvement horloger pour appliquer une force de rappel sur le levier 26 et le repousser vers sa position de repos, c'est-à-dire en direction du poussoir 24.A pin 46, integral with the base 28, emerges between the two fingers 44, 45 to define a bearing surface intended to cooperate with an additional resilient member 48, mounted on the frame of the watch movement to apply a restoring force on the lever 26 and push it towards its rest position, that is to say towards the pusher 24.

Les premier et second doigts 44 et 45 sont agencés pour coopérer respectivement avec le premier verrou 10 et un second verrou 50.The first and second fingers 44 and 45 are arranged to cooperate respectively with the first latch 10 and a second latch 50.

Le premier verrou 10 comporte une planche 51 montée rotative sur un arbre 52 solidaire du bâti du mouvement horloger, avec interposition d'un ressort hélicoïdal 54 définissant une fonction d'amortisseur, comme cela sera décrit plus en détail en relation avec la figure 4.The first latch 10 comprises a plate 51 rotatably mounted on a shaft 52 secured to the frame of the watch movement, with the interposition of a helical spring 54 defining a damper function, as will be described in more detail in connection with the figure 4 .

La planche 51 comprend un premier bec 56 destiné à coopérer avec le premier doigt 44, ainsi qu'un second bec 58 destiné à coopérer avec des dents 60 ménagées sur une bague 62, solidaire du tambour 4 du barillet 1, pour verrouiller ce dernier dans le sens de rotation anti-horaire sur la vue de la figure 1, tel qu'exposé précédemment.The board 51 comprises a first nose 56 intended to cooperate with the first finger 44, and a second nose 58 intended to cooperate with teeth 60 formed on a ring 62, integral with the drum 4 of the barrel 1, to lock the latter in the anti-clockwise rotation direction on the view of the figure 1 , as previously stated.

Il ressort de la figure 3 que la bague 62 présente quatre dents 60 régulièrement réparties. Ainsi, à chaque fois que le tambour est libéré, il effectue un quart de tour. Lorsqu'il est souhaité que cette rotation du tambour ait lieu à grande vitesse, le ressort 5 de barillet étant alors calibré de manière adaptée, le choc issu du verrouillage de la bague 62 par la coopération entre le bec 58 et une dent 60 peut être violent. Ainsi, le fait de monter le premier verrou 10 sur le bâti par l'intermédiaire d'un amortisseur permet de limiter les risques d'usure prématurée des constituants du mouvement horloger selon la présente invention.It appears from figure 3 that the ring 62 has four teeth 60 regularly distributed. Thus, each time the drum is released, it performs a quarter turn. When it is desired that this rotation of the drum takes place at a high speed, the barrel spring 5 then being calibrated in a suitable manner, the shock resulting from the locking of the ring 62 by the cooperation between the spout 58 and a tooth 60 can be violent. Thus, mounting the first latch 10 on the frame via a damper limits the risk of premature wear constituents of the watch movement according to the present invention.

De même, lorsque le ressort 5 de barillet présente un couple important, il peut être nécessaire de prévoir le second verrou 50 pour sécuriser le verrouillage du tambour 4 par le premier verrou 10, en éliminant les risques de dégagement intempestif de ce dernier. Du fait de son agencement, le second verrou 50 empêche le premier verrou 10 de se dégager de la dent 60 avec laquelle il est en prise sans autre action extérieure.Similarly, when the barrel spring 5 has a high torque, it may be necessary to provide the second latch 50 to secure the locking of the drum 4 by the first latch 10, eliminating the risk of inadvertent release of the latter. Due to its arrangement, the second latch 50 prevents the first latch 10 from disengaging from the tooth 60 with which it is engaged without further external action.

Le fait de souder le ressort de barillet au tambour permet également de prévenir certains dommages que pourraient subir les constituants du mouvement horlogers lors de ces chocs.Soldering the barrel spring drum also prevents some damage that might be experienced by the components of the watch movement during these shocks.

Il apparaît de ce qui précède que le doigt 45 de l'organe d'actionnement 36 est destiné à actionner le second verrou 50 par l'intermédiaire d'une surface de butée 64 ménagée sur ce dernier. Plus précisément, lors de l'actionnement du poussoir 24 par un utilisateur, la base 28 du levier 26 est entraînée en rotation, de même que l'organe d'actionnement 36 dont les doigts 44 et 45 vont agir respectivement sur les premier et second verrous, le doigt 45 agissant sur le second verrou avant que le doigt 44 n'agisse sur le premier verrou. Ainsi, la sécurité du premier verrou est neutralisée avant qu'il ne soit actionné pour libérer le tambour de barillet.It appears from the above that the finger 45 of the actuating member 36 is intended to actuate the second latch 50 via an abutment surface 64 formed on the latter. More precisely, when the push-button 24 is actuated by a user, the base 28 of the lever 26 is rotated, as is the actuating member 36 of which the fingers 44 and 45 will act respectively on the first and second locks, the finger 45 acting on the second lock before the finger 44 acts on the first lock. Thus, the safety of the first latch is neutralized before it is actuated to release the barrel drum.

On notera qu'un ressort de rappel 66 présentant trois bras agit sur les premier et second verrous, pour exercer sur eux des forces tendant à les positionner dans leur position active de verrouillage, ainsi que sur le cliquet 8 du rochet de remontage, de manière connue.Note that a return spring 66 having three arms acts on the first and second locks, to exert on them forces tending to position them in their active locking position, and on the pawl 8 of the winding ratchet, so known.

Pour éviter que le premier verrou 10 ne reste dans sa position inactive, du fait d'une action prolongée de l'utilisateur sur le poussoir 24, c'est-à-dire lorsque la durée de cette action excède le temps nécessaire au tambour de barillet pour effectuer un quart de tour, un premier dispositif de sécurité est prévu. Celui-ci présente ici la forme d'un organe de débrayage 68 monté rotatif sur le bâti du mouvement horloger, entre le tambour de barillet et le levier 26.To prevent the first latch 10 remains in its inactive position, due to a prolonged action of the user on the pusher 24, that is to say when the duration of this action exceeds the time required for the drum. barrel to perform a quarter turn, a first safety device is provided. Here it has the form of a disengaging member 68 rotatably mounted on the frame of the watch movement, between the barrel drum and the lever 26.

L'organe de débrayage 68 comprend un pignon denté 70 solidaire d'une came 72, de forme oblongue et, agencée de manière excentrée en référence à l'axe de rotation du pignon denté. Ce dernier est dimensionné et denté de telle manière qu'il fait un tour sur lui-même lorsque le barillet 4 fait un quart de tour. Lorsque le tambour de barillet est libéré par le premier verrou 10, suite à une pression sur le poussoir 24, il entraîne l'organe de débrayage 68 en rotation, dont la came 72 agit sur l'organe d'actionnement 36 pour le repousser en direction de la base 28 et rétracter les premier et second doigts 44, 45. Grâce à cette construction, les doigts libèrent les deux verrous 10 et 50 pendant la rotation du tambour 4, même lorsque le poussoir 24 est maintenu enfoncé par l'utilisateur, garantissant dans tous les cas le verrouillage du tambour de barillet après une course prédéfinie, d'un quart de tour dans le mode de réalisation illustré à titre non limitatif.The disengaging member 68 comprises a toothed pinion 70 integral with a cam 72, of oblong shape and arranged eccentrically with reference to the axis of rotation of the pinion gear. The latter is dimensioned and toothed so that it turns on itself when the barrel 4 is a quarter turn. When the barrel drum is released by the first latch 10, following a pressure on the pusher 24, it drives the disengaging member 68 in rotation, the cam 72 acts on the actuating member 36 to push it back into position. direction of the base 28 and retract the first and second fingers 44, 45. With this construction, the fingers release the two latches 10 and 50 during the rotation of the drum 4, even when the pusher 24 is held down by the user, guaranteeing in all cases the locking of the drum barrel after a predefined stroke, a quarter of a turn in the embodiment shown in a non-limiting manner.

Lorsque le tambour est libéré, il entraîne également un premier mobile de transmission 74 relié cinématiquement à un mobile, préférablement d'affichage ou contribuant à l'apparence de la pièce.When the drum is released, it also drives a first transmission mobile 74 kinematically connected to a mobile, preferably display or contributing to the appearance of the room.

La figure 4 représente une vue en perspective simplifiée et éclatée d'une partie du mouvement horloger de la figure 1. Plus précisément, la structure du verrou 10 est visible sur cette figure.The figure 4 represents a simplified and exploded perspective view of part of the watchmaking movement of the figure 1 . More specifically, the structure of the lock 10 is visible in this figure.

La planche 51 du verrou présente une ouverture centrale 80 destinée à loger l'arbre 52.The board 51 of the lock has a central opening 80 intended to house the shaft 52.

L'arbre 52 est composé de différents éléments.The shaft 52 is composed of different elements.

Un pied-vis 82 est logé dans le bâti du mouvement horloger, en y étant par exemple chassé ou vissé. Le pied 82 comprend une base 84, sensiblement cylindrique ici, prévue pour former une surface de guidage pour la planche 51. Un tube 86 s'étend à partir de la base 84, celui-ci présentant un taraudage destiné à recevoir le filetage d'un pied de vis 88 prévue pour assurer le maintien axial de la planche 51.A foot-screw 82 is housed in the frame of the watch movement, for example being driven or screwed. The foot 82 comprises a substantially cylindrical base 84, intended to form a guide surface for the board 51. A tube 86 extends from the base 84, the latter having a tapping intended to receive the thread of a screw root 88 provided to ensure the axial retention of the board 51.

Une rondelle à portée 90, assurant une fonction d'organe de liaison, est interposée entre la tête de la vis 88 et la planche 51 pour faciliter le pivotement de la planche.A bearing washer 90, acting as a connecting member, is interposed between the head of the screw 88 and the board 51 to facilitate the pivoting of the board.

En outre, on notera que, d'une part, un premier bras 91, formé d'une pièce avec la planche, s'étend à l'intérieur de l'ouverture centrale en direction de l'arbre 52 et que, d'autre part, un second bras 92 s'étend depuis la rondelle 90, en étant sensiblement aligné avec le premier bras.In addition, it will be noted that on the one hand, a first arm 91, formed in one piece with the board, extends inside the central opening in the direction of the shaft 52 and that, on the other hand, a second arm 92 extends from the washer 90, being substantially aligned with the first arm.

Les deux bras 91, 92 définissent un support pour le ressort hélicoïdal 54. Des rondelles 94 sont interposées entre les extrémités du ressort et, d'une part, la planche et, d'autre part, l'organe de liaison.The two arms 91, 92 define a support for the coil spring 54. Washers 94 are interposed between the ends of the spring and, on the one hand, the board and, on the other hand, the connecting member.

Préférablement le ressort est précontraint, dans la position relative écartée, pour assurer le maintien de la planche et de l'organe de liaison (et donc de l'arbre) dans cette position. Lors des arrêts du barillet, ces deux éléments passent momentanément dans une position relative comprimée avant de revenir dans la position relative écartée, du fait que la force exercée par la denture du barillet sur le bec au moment du choc excède celle du ressort 54.Preferably the spring is prestressed, in the relative position spaced, to ensure the maintenance of the board and the connecting member (and therefore the shaft) in this position. During stops of the barrel, these two elements momentarily pass into a compressed relative position before returning to the relative position discarded, because the force exerted by the toothing of the barrel on the spout at the moment of impact exceeds that of the spring 54.

La description qui précède s'attache à décrire un mode de réalisation particulier à titre d'illustration non limitative et, l'invention n'est pas limitée à la mise en oeuvre de certaines caractéristiques particulières qui viennent d'être décrites, comme par exemple la structure de l'organe de commande, celle du mécanisme de remontage, ou encore le fait que le barillet est destiné à entraîner un cadran mobile. En effet, il est possible de mettre en oeuvre la présente invention pour que le dispositif de sécurité agisse au moins indirectement sur l'organe de remontage, de manière générale, pour le verrouiller, sans sortir du cadre de la présente invention.The foregoing description attempts to describe a particular embodiment by way of non-limiting illustration and the invention is not limited to the implementation of certain particular features which have just been described, for example the structure of the organ of control, that of the winding mechanism, or the fact that the barrel is intended to drive a mobile dial. Indeed, it is possible to implement the present invention so that the safety device acts at least indirectly on the winding member, in general, to lock, without departing from the scope of the present invention.

A titre d'exemple non limitatif, le barillet peut être mis à profit pour assurer le fonctionnement d'un mécanisme de sonnerie en alternative à un cadran mobile.By way of non-limiting example, the barrel can be used to ensure the operation of a striking mechanism as an alternative to a mobile dial.

Par ailleurs, les formes spécifiquement illustrées et décrites pour les différents constituants ne sont pas limitatives. A titre d'exemple, le ressort hélicoïdal 54 pourrait présenter une autre forme que celle illustrée sans sortir du cadre de l'invention, ou il est encore possible de prévoir que l'organe de débrayage n'agit que de façon indirecte sur l'organe d'actionnement. Il est également possible de prévoir que les dents 60 coopérant avec le premier verrou ne soient pas réparties de manière régulière autour de la bague 62.Moreover, the forms specifically illustrated and described for the various constituents are not limiting. For example, the helical spring 54 could have a shape other than that illustrated without departing from the scope of the invention, or it is still possible to provide that the disengaging member only acts indirectly on the actuating member. It is also possible to provide that the teeth 60 cooperating with the first lock are not evenly distributed around the ring 62.

L'homme du métier ne rencontrera pas de difficulté particulière pour adapter le contenu de la présente divulgation à ses propres besoins, et mettre en oeuvre un dispositif de verrouillage ne reprenant qu'en partie les caractéristiques exposées ici, sans sortir du cadre de la présente invention.Those skilled in the art will not encounter any particular difficulty in adapting the content of the present disclosure to their own needs, and implement a locking device that only partially reproduces the features set forth herein, without departing from the scope of this document. invention.

Claims (11)

  1. Locking device (10) for locking a clock movement mobile (1), comprising
    a platform (51), intended to be mounted such that it can rotate on a body of the clock movement between first and second positions, by way of a staff (52) and having a locking spur (58) intended to collaborate with the mobile in order to lock it in said first position and leave it free in said second position, characterized in that it further comprises a connecting member (90) mechanically connecting said platform (51) and said staff (52), and
    in that said platform is designed to be able to move translationally with reference to said connecting member (90) between compressed and separated relative positions, an elastic member (54) being arranged in such a way as to act on said platform and on said connecting member in order to tend to position these in their separated relative position.
  2. Device (10) according to Claim 1, characterized in that said platform (51) has a central opening (80) in which said connecting member (90) and said staff (52) are housed.
  3. Device (10) according to Claim 1 or 2, characterized in that a first element from among said connecting member (90) and said platform (51) comprises a first arm (91), situated in said central opening (80) and on which is engaged a helical spring (54) a first end of which is arranged to press against said connecting member (90) and a second end of which is arranged to press against said platform (51).
  4. Device (10) according to Claim 3, characterized in that the other element comprises a second arm (92) arranged substantially in alignment with said first arm (91).
  5. Device (10) according to any one of the preceding claims, characterized in that said staff (52) comprises a steady (82) intended to be mounted on the body of the clock movement, this steady having a base (84) that forms a guide surface for said platform (51) and from which there extends a tube (86) designed to collaborate with a suitable hole formed in said connecting member (90).
  6. Device (10) according to Claim 5, characterized in that said tube (86) has a tapping in which there engages a screw (88) designed to retain said connecting member (90) axially.
  7. Mechanism for a clock movement comprising a locking device (10) according to any one of Claims 1 to 6, characterized in that said locking spur (58) is designed to collaborate with a mobile.
  8. Mechanism for clock movement comprising a locking device (10) according to any one of Claims 1 to 6, characterized in that said locking spur (58) is designed to collaborate with a tooth set of a barrel (1), preferably of a barrel drum.
  9. Mechanism according to Claim 8, characterized in that it comprises an elastic member (66) designed to apply a force to said platform (51) to tend to position it in said first position, in which position said locking spur (58) collaborates with said tooth set.
  10. Mechanism according to Claim 9, characterized in that it further comprises a control member (26) designed to act on said platform (51) and cause it to move from said first position to said second position.
  11. Timepiece comprising a mechanism according to any one of Claims 7 to 10.
EP20110159125 2011-03-22 2011-03-22 Shock-absorber device for clock mechanism Not-in-force EP2503406B1 (en)

Priority Applications (1)

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EP20110159125 EP2503406B1 (en) 2011-03-22 2011-03-22 Shock-absorber device for clock mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20110159125 EP2503406B1 (en) 2011-03-22 2011-03-22 Shock-absorber device for clock mechanism

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EP2503406A1 EP2503406A1 (en) 2012-09-26
EP2503406B1 true EP2503406B1 (en) 2013-08-28

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH140164A (en) * 1929-07-05 1930-05-31 Philippe Jaccard Rene Device for controlling a clockwork movement.
FR1544868A (en) * 1967-09-29 1968-11-08 Jaeger Sa Instantaneous jump mechanism for electric or mechanical pendulums
ATE399338T1 (en) 2006-03-29 2008-07-15 Grisogono S A De CLOCK MODULE INCLUDING AN ADJUSTABLE ROTATING DIAL ON A MOVEMENT

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