EP2600214B1 - Transmission mechanism between two portions of a control rod for a clock movement - Google Patents
Transmission mechanism between two portions of a control rod for a clock movement Download PDFInfo
- Publication number
- EP2600214B1 EP2600214B1 EP20110191622 EP11191622A EP2600214B1 EP 2600214 B1 EP2600214 B1 EP 2600214B1 EP 20110191622 EP20110191622 EP 20110191622 EP 11191622 A EP11191622 A EP 11191622A EP 2600214 B1 EP2600214 B1 EP 2600214B1
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- EP
- European Patent Office
- Prior art keywords
- rod
- pinion
- designed
- movement
- horology
- 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.)
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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
- G04B37/00—Cases
- G04B37/06—Forming the passage for the winding stem through the case; Divided winding stems
- G04B37/066—Divided stem (tige brisee)
Definitions
- the present invention relates to a mechanism for transmitting axial and rotary movements between two parts of a stem of staggered axes for a watch movement, a first portion of which is intended to be housed at least partially in the watch movement while being arranged to be movable between at least first and second axial positions and the second part is intended to carry a crown at its free end, outside the watch movement.
- this transmission mechanism comprises a device for transmitting axial movements between the first and second parts, as well as a kinematic connection between a first pinion integral in rotation with the first portion and a second pinion integral in rotation with the second portion.
- each rod portion carries a pinion arranged in engagement with the pinion of the other rod portion.
- a jumper is provided to hold the two parts of the rod integral with each other in the direction of their axial movements.
- the rider is engaged in a groove in each of the two parts of the rod, by elastic deformation.
- the patent application EP 1134628 A1 has a mechanism similar to the previous one, in which the jumper is replaced by a frame carrying at least one intermediate return, or an odd number of references intermediates, to ensure that both parts of the rod rotate in the same direction of rotation.
- the second pinion is assembled to the second portion of the rod prior to the insertion of the latter through its housing in the box.
- the dimensions of this housing limit those of the second pinion, which may impose a limitation on the magnitude of the possible offset between the two parts of the rod.
- the patent EP 1748330 B1 proposes an alternative solution to the structures which have just been exposed, according to which a portion of the rod situated entirely in the watch movement is arranged fixed in its longitudinal direction.
- the other rod part, carrying the control ring cooperates with a pulling knob controlling the displacements of a free mounted pinion, in the axial direction, on the first part of the rod while being secured to the latter in rotation by a square type connection.
- a main object of the present invention is to overcome the disadvantages of the control mechanisms known from the prior art, by proposing a mechanism for transmitting axial and rotary movements between two parts of a rod of offset axes, for a watch movement, requiring only a minimum of modifications to be made to an existing watch movement while presenting a simplified assembly procedure with reference existing mechanisms.
- the present invention relates more particularly to a transmission mechanism as defined above, comprising a pull tab, intended to ensure the maintenance of the second rod portion with reference to the watch movement and cooperating with it to ensure its positioning between minus first and second axial positions. Furthermore, the pull tab is arranged to cooperate with the second pinion so as to slave to the axial movements of the second portion of the rod, at least in the direction from the inside of the clock movement outwardly.
- the transmission mechanism according to the present invention makes it possible to preserve the construction of the control rod provided in the basic clockwork movement, while requiring only a minimum of adaptation, while the fact that the zipper ensures the servocontrol of the second pinion to the corresponding part of the rod, in at least one direction of its axial displacements, makes it possible to simplify the assembly of this rod part with reference to the known mechanisms of the prior art.
- the pull tab comprises a first finger intended to be placed in abutment against the second pinion on the nearest side of the watch movement with reference to the second pinion.
- the pull tab may comprise a second finger intended to be placed in abutment against the second pinion on the furthest side of the watch movement with reference to the second pinion.
- the pull tab can act on the second pinion to enslave axial movements of the second part of the rod in both directions of movement.
- the second finger can be arranged to cooperate further with a corresponding annular groove formed in the second rod portion, to define the mode of cooperation between the zipper and the second portion of the rod.
- the mechanism may comprise an abutment surface formed on the second rod portion and against which the second pinion is arranged in its operating position, the abutment surface being located on the furthest side of the watch movement. with reference to the second gear.
- the second pinion can simply be threaded onto the second part of the rod when the latter is disposed in its housing, the establishment of the zipper ending to ensure their relative positioning easily thanks to a pre- positioning operated by the abutment surface.
- this abutment surface also serves to slave the second gear to the axial displacements of the second portion of the rod in the direction from the outside to the inside of the watch movement.
- the device for transmitting axial movements comprises first and second flanges carried by the first rod portion being disposed on either side of the first pinion and having respective diameters greater than that of the latter. , the second pinion being engaged between the two flanges in its engaged position with the first pinion.
- the assembly procedure of the mechanism according to the present invention is very simple. It suffices to position the second gear so that it is engaged with the first gear, between the two flanges, before disposing the second part of the rod in its housing, until the contact between the second pinion and abutment surface is established, and then set up the zipper.
- the latter may advantageously be assembled with reference to the frame of the watch movement in a conventional manner, by screwing.
- the present invention also relates to a control member for a watch movement comprising a rod made of two shaft parts with staggered axes, a first portion of which is intended to be at least partially housed in the watch movement while being arranged to be movable. between at least first and second axial positions and the second portion is intended to carry a crown at its end free, outside the watch movement, the rod being associated with a transmission mechanism as defined above.
- the present invention also relates to a watch movement comprising such a control member and a timepiece comprising such a watch movement.
- the figure 1 represents a simplified perspective view of a transmission mechanism according to a preferred embodiment of the present invention.
- the Figures 2a and 2b represent respectively cross-sectional views of the transmission mechanism of the figure 1 in respective first and second configurations.
- the transmission mechanism is intended to be implanted in association with a watch movement 1 housed in a timepiece box, not visible, via a casing ring 2.
- the watch movement and the circle of encageage are only partially represented in transparency for the sake of clarity of the figures.
- a first portion 4 of control rod is partially housed inside the watch movement 1.
- the portion of this rod located in the watch movement has not been shown to simplify the figures, as long as it is conventional.
- it is in fact arranged to cooperate with a pull (not shown) itself controlling the displacements of a sliding pinion (not shown) integral in rotation with this portion 4 of the rod.
- the portion 5 of the first portion 4 of the control rod located outside the watch movement differs substantially from the known structures of the prior art. This is arranged in a recess 6 formed in the casing ring 2.
- this portion 5 carries a first pinion 8 arranged between two flanges 9, 10 generally disc shape, here of the same diameter.
- This assembly is held fixed on the portion 5 of the rod in that the flange 10 is crimped at the end of the portion 5.
- the flange 9 is here made in one piece with the portion 5 of the first portion 4 of the rod.
- portion 5 partially has a square section (not visible) on which the pinion 8 is engaged, so that the latter is integral in rotation with the first rod portion 4.
- the recess 6 of the casing ring 2 has dimensions such that the first portion 4 of the rod can be moved axially between at least first and second axial positions.
- the control rod has a second rod portion 12, with an axis offset in reference to the axis of the first portion 4 and shown schematically. It should be noted in particular that the portion of the timepiece visible on the top of the figure 1 corresponds to the dial side. Thus, while the first portion 4 of the rod is disposed near the bottom of the box, because the basic clockwork movement implemented is surmounted by an additional module disposed dial side, the second part 12 is, she , arranged substantially towards the middle of the box.
- the second portion 12 of rod is intended to carry a control ring outside the timepiece box, in particular to allow a user to manually remount the watch movement or to make a setting hour, conventionally.
- the second portion 12 of rod has an annular extra thickness 14 followed, in the direction of the interior of the watch movement, a portion 15, of smaller transverse dimensions than those of the overthickness and square section, the extra thickness 14 defining a surface of stop, by its inner face, for a second pinion 16.
- the second pinion 16 carries a gun 17 and is arranged free in translation on the portion 15 of the second rod portion 12 to be integral in rotation with the latter.
- the bore (not visible) of the pinion 16 and / or its barrel 17 has a square internal section to cooperate with the square of the second portion 12 rod.
- the second pinion is arranged in engagement with the first pinion 8 to transmit the rotational movements of the second portion 12 of the rod to the first portion 4 of the rod.
- the second pinion is housed between the flanges 9 and 10, so as to cooperate with them to transmit the axial displacements of the second portion 12 of the rod to the first portion 4 of the rod.
- the second pinion 16 must be slaved to the axial displacements of the second portion 12 of the rod. It emerges from its mode of cooperation with the second rod portion 12 that the abutment surface defined by the excess thickness 14 acts on the second pinion to push it towards the inside of the watch movement during the movements of the second rod portion. in the same direction.
- the transmission mechanism according to the present invention comprises a pull 18 - additional to the conventional pull rod already present in the watch movement, as mentioned above - arranged to cooperate with both the second shaft portion 12 and the second pinion 16.
- the pull tab 18 is intended to cooperate with an annular groove 19, formed in the second rod portion 12, so that the pull rod pivots in response to the axial displacements of the second rod portion.
- the pull tab 18 comprises a finger 20 disposed in the annular groove 19 and against the second pinion 16, on the side of the watch movement, so as to be able to push the latter towards the outside when the second portion 12 of rod is drawn.
- the second pinion 16 then acts on the flange 9 disposed on the movement side to push it towards the movement, the first portion 4 of the rod following the same movement.
- This operation is illustrated by the passage of the configuration of the mechanism of the figure 2a (neutral or winding position of the stem) to that of the figure 2b (position taken from the stem, for example for setting the time).
- the conventional winding and setting mechanism located in the watch movement, fulfills its role in a known manner.
- the casing ring 2 here preferably comprises a bore 22 in which is engaged the inner end of the second rod portion 12, in order to ensure guiding of the latter during its movements.
- the pull tab 18 here comprises a hole 24 intended to cooperate with the free end 25 of a fastening screw 26, housed in a suitable hole of the casing ring 2.
- the end of the pull tab opposite the finger 20 has a spout 28 arranged to cooperate with the free end 30 of a flat spring 31 whose base 32 is also integral with the casing ring, by means of a screw (no shown).
- the free end 30 has two notches 33, 34, each of which is associated with one of the axial positions of the second rod portion 12 by defining the stable positions of the pull tab 18.
- the assembly method of the transmission mechanism according to the invention is clearly simplified with reference to methods of assembling mechanisms of the prior art.
- the first portion 4 rod must be modified at its outer end, relative to a conventional control rod, before being implemented in the watch movement and retained by a base pull.
- the second pinion 16 can be put in place, in engagement with the first pinion 8, then the second portion 12 of the rod can be inserted into its housing, through the timepiece box (watch movement having been nested beforehand).
- the annular extra thickness 14 then defines a stop in cooperation with the second pinion, during the establishment of the second rod portion.
- the zipper 18 can then be assembled to the casing ring to maintain the second stem portion and thus the assembly.
- the Figures 3a and 3b represent respectively front views of the transmission mechanism of the figure 1 in respective first and second configurations. More specifically, the mechanism is represented in a view along the axial direction of the rod, from outside the watch movement 1.
- the second rod portion 12 can be arranged all around the axis of the first rod portion 4, in a circle whose radius corresponds to the spacing X to be provided between the two gears 8 and 16.
- the pull tab comprises a second finger arranged to cooperate with the second pinion 16 on the outside, one or the other of the two fingers of the puller cooperating with an annular groove of the second portion of the rod to control the pivoting of the zipper axial movements thereof.
- each of the fingers cooperates with an annular groove adapted to the second portion 12 of the rod, being arranged in abutment against one side of the second pinion 16, the provision of the annular extra thickness on the rod not being in this case not absolutely necessary.
- first and second pinions 8 and 16 are not necessarily arranged in direct connection for the implementation of the present invention.
- One or more intermediate references may be provided.
- the transmission mechanism according to the present invention is not limited to the implementation of a control member for performing the reassembly or setting time of the timepiece.
- Other commands are also possible without departing from the scope of the invention which is defined by the appended claims.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Gears, Cams (AREA)
- Electromechanical Clocks (AREA)
- Electric Clocks (AREA)
Description
La présente invention concerne un mécanisme de transmission de mouvements axiaux et rotatifs entre deux parties d'une tige d'axes décalés, pour mouvement horloger, dont une première partie est destinée à être logée au moins partiellement dans le mouvement horloger en étant agencée pour être mobile entre au moins des première et seconde positions axiales et, la seconde partie est destinée à porter une couronne à son extrémité libre, à l'extérieur du mouvement horloger. Plus particulièrement, ce mécanisme de transmission comporte un dispositif de transmission des mouvements axiaux entre les première et seconde parties, ainsi qu'une liaison cinématique entre un premier pignon solidaire en rotation de la première partie et un second pignon solidaire en rotation de la seconde partie.The present invention relates to a mechanism for transmitting axial and rotary movements between two parts of a stem of staggered axes for a watch movement, a first portion of which is intended to be housed at least partially in the watch movement while being arranged to be movable between at least first and second axial positions and the second part is intended to carry a crown at its free end, outside the watch movement. More particularly, this transmission mechanism comprises a device for transmitting axial movements between the first and second parts, as well as a kinematic connection between a first pinion integral in rotation with the first portion and a second pinion integral in rotation with the second portion. .
Des dispositifs de ce type ont été divulgués dans l'art antérieur, en particulier dans des pièces d'horlogerie comportant un mouvement de base surmonté d'un module d'affichage additionnel, pour éviter un positionnement de la couronne de commande trop loin du plan médian de la boîte.Devices of this type have been disclosed in the prior art, in particular in timepieces comprising a basic movement surmounted by an additional display module, to prevent positioning of the control ring too far from the plane. median of the box.
A titre d'exemple, le brevet
La demande de brevet
Les deux structures divulguées dans ces documents antérieurs présentent des procédés d'assemblage similaires complexes. En effet, le cavalier ou le bâti, suivant la structure considérée, ne peut être mis en place qu'après emboîtage du mouvement horloger, après que la partie de la tige présentant une extrémité à l'extérieur de la boîte ait été mise en place au travers de cette dernière. Une telle procédure d'assemblage est problématique, notamment du fait du peu d'espace à disposition pour accéder aux portions concernées des deux parties de tige.The two structures disclosed in these prior documents exhibit similar complex assembly methods. Indeed, the rider or the frame, according to the structure in question, can be put in place only after fitting the watch movement, after the part of the rod presenting an end outside the box has been put in place. through this last. Such an assembly procedure is problematic, particularly because of the limited space available to access the relevant portions of the two stem parts.
En outre, il semble que le second pignon soit assemblé à la seconde partie de la tige préalablement à l'insertion de cette dernière au travers de son logement dans la boîte. Ainsi, les dimensions de ce logement limitent celles du second pignon, ce qui peut imposer une limitation sur l'ampleur du décalage possible entre les deux parties de la tige.In addition, it seems that the second pinion is assembled to the second portion of the rod prior to the insertion of the latter through its housing in the box. Thus, the dimensions of this housing limit those of the second pinion, which may impose a limitation on the magnitude of the possible offset between the two parts of the rod.
Le brevet
Cependant, il faut noter que, dans ce cas, la structure de la partie de tige située dans le mouvement est spécifique. Ainsi, il ne suffit pas, pour mettre en oeuvre cette solution, d'utiliser la tige conventionnelle déjà présente dans un mouvement horloger servant de base à la réalisation d'une pièce d'horlogerie avec module additionnel. En effet, une modification complète du mécanisme de commande est nécessaire pour mettre en oeuvre l'objet de ce brevet.However, it should be noted that, in this case, the structure of the rod portion located in the movement is specific. Thus, it is not sufficient, to implement this solution, to use the conventional rod already present in a watch movement serving as a basis for the realization of a timepiece with additional module. Indeed, a complete modification of the control mechanism is necessary to implement the object of this patent.
Un but principal de la présente invention est de pallier les inconvénients des mécanismes de commande connus de l'art antérieur, en proposant un mécanisme de transmission de mouvements axiaux et rotatifs entre deux parties d'une tige d'axes décalés, pour mouvement horloger, ne nécessitant qu'un minimum de modifications à apporter à un mouvement horloger existant tout en présentant une procédure d'assemblage simplifiée en référence aux mécanismes existants.A main object of the present invention is to overcome the disadvantages of the control mechanisms known from the prior art, by proposing a mechanism for transmitting axial and rotary movements between two parts of a rod of offset axes, for a watch movement, requiring only a minimum of modifications to be made to an existing watch movement while presenting a simplified assembly procedure with reference existing mechanisms.
A cet effet, la présente invention concerne plus particulièrement un mécanisme de transmission tel que défini plus haut, comportant une tirette, destinée à assurer le maintien de la seconde partie de tige en référence au mouvement horloger et coopérant avec elle pour assurer son positionnement entre au moins des première et seconde positions axiales. Par ailleurs, la tirette est agencée pour coopérer avec le second pignon de manière à l'asservir aux mouvements axiaux de la seconde partie de la tige, au moins dans le sens allant depuis l'intérieur du mouvement horloger vers l'extérieur.To this end, the present invention relates more particularly to a transmission mechanism as defined above, comprising a pull tab, intended to ensure the maintenance of the second rod portion with reference to the watch movement and cooperating with it to ensure its positioning between minus first and second axial positions. Furthermore, the pull tab is arranged to cooperate with the second pinion so as to slave to the axial movements of the second portion of the rod, at least in the direction from the inside of the clock movement outwardly.
Grâce à ces caractéristiques, le mécanisme de transmission selon la présente invention permet de conserver la construction de la tige de commande prévue dans le mouvement horloger de base, en ne nécessitant qu'un minimum d'adaptation, tandis que le fait que la tirette assure l'asservissement du second pignon à la partie correspondante de la tige, dans au moins un sens de ses déplacements axiaux, permet de simplifier l'assemblage de cette partie de tige en référence aux mécanismes connus de l'art antérieur.Thanks to these characteristics, the transmission mechanism according to the present invention makes it possible to preserve the construction of the control rod provided in the basic clockwork movement, while requiring only a minimum of adaptation, while the fact that the zipper ensures the servocontrol of the second pinion to the corresponding part of the rod, in at least one direction of its axial displacements, makes it possible to simplify the assembly of this rod part with reference to the known mechanisms of the prior art.
De manière préférée, la tirette comprend un premier doigt destiné à être disposé en appui contre le second pignon du côté le plus proche du mouvement horloger en référence au second pignon.Preferably, the pull tab comprises a first finger intended to be placed in abutment against the second pinion on the nearest side of the watch movement with reference to the second pinion.
La tirette peut comporter un second doigt destiné à être disposé en appui contre le second pignon du côté le plus éloigné du mouvement horloger en référence au second pignon. Ainsi, la tirette peut agir sur le second pignon pour l'asservir aux déplacements axiaux de la seconde partie de la tige dans les deux sens des déplacements. Le second doigt peut être agencé de manière à pouvoir coopérer en outre avec une gorge annulaire adaptée ménagée dans la seconde partie de tige, pour définir le mode de coopération entre la tirette et la seconde partie de la tige.The pull tab may comprise a second finger intended to be placed in abutment against the second pinion on the furthest side of the watch movement with reference to the second pinion. Thus, the pull tab can act on the second pinion to enslave axial movements of the second part of the rod in both directions of movement. The second finger can be arranged to cooperate further with a corresponding annular groove formed in the second rod portion, to define the mode of cooperation between the zipper and the second portion of the rod.
Selon un mode de réalisation préféré, le mécanisme peut comporter une surface de butée ménagée sur la seconde partie de tige et contre laquelle est agencé le second pignon dans sa position de service, la surface de butée étant située du côté le plus éloigné du mouvement horloger en référence au second pignon.According to a preferred embodiment, the mechanism may comprise an abutment surface formed on the second rod portion and against which the second pinion is arranged in its operating position, the abutment surface being located on the furthest side of the watch movement. with reference to the second gear.
Grâce à ces caractéristiques, le second pignon peut simplement être enfilé sur la seconde partie de la tige lorsque cette dernière est disposée dans son logement, la mise en place de la tirette finissant d'assurer leur positionnement relatif de manière aisée grâce à un pré-positionnement opéré par la surface de butée. En outre, cette surface de butée permet également d'asservir le second pignon aux déplacements axiaux de la seconde partie de la tige dans la direction depuis l'extérieur vers l'intérieur du mouvement horloger.Thanks to these characteristics, the second pinion can simply be threaded onto the second part of the rod when the latter is disposed in its housing, the establishment of the zipper ending to ensure their relative positioning easily thanks to a pre- positioning operated by the abutment surface. In addition, this abutment surface also serves to slave the second gear to the axial displacements of the second portion of the rod in the direction from the outside to the inside of the watch movement.
Suivant un mode de réalisation préféré, le dispositif de transmission des mouvements axiaux comporte des premier et second flasques portés par la première partie de tige en étant disposés de part et d'autre du premier pignon et présentant des diamètres respectifs supérieurs à celui de ce dernier, le second pignon étant engagé entre les deux flasques dans sa position engrenée avec le premier pignon.According to a preferred embodiment, the device for transmitting axial movements comprises first and second flanges carried by the first rod portion being disposed on either side of the first pinion and having respective diameters greater than that of the latter. , the second pinion being engaged between the two flanges in its engaged position with the first pinion.
Grâce à ces caractéristiques, la procédure d'assemblage du mécanisme selon la présente invention est très simple. Il suffit en effet de positionner le second pignon de manière qu'il soit en prise avec le premier pignon, entre les deux flasques, avant de disposer la seconde partie de la tige dans son logement, jusqu'à ce que le contact entre le second pignon et la surface de butée soit établi, puis de mettre en place la tirette.Thanks to these characteristics, the assembly procedure of the mechanism according to the present invention is very simple. It suffices to position the second gear so that it is engaged with the first gear, between the two flanges, before disposing the second part of the rod in its housing, until the contact between the second pinion and abutment surface is established, and then set up the zipper.
Cette dernière pourra avantageusement être assemblée en référence au bâti du mouvement horloger de manière conventionnelle, par vissage.The latter may advantageously be assembled with reference to the frame of the watch movement in a conventional manner, by screwing.
Par ailleurs, la présente invention concerne également un organe de commande pour mouvement horloger comportant une tige en deux parties de tige d'axes décalés, dont une première partie est destinée à être au moins partiellement logée dans le mouvement horloger en étant agencée pour être mobile entre au moins des première et seconde positions axiales et, la seconde partie est destinée à porter une couronne à son extrémité libre, à l'extérieur du mouvement horloger, la tige étant associée à un mécanisme de transmission tel que défini ci-dessus.Furthermore, the present invention also relates to a control member for a watch movement comprising a rod made of two shaft parts with staggered axes, a first portion of which is intended to be at least partially housed in the watch movement while being arranged to be movable. between at least first and second axial positions and the second portion is intended to carry a crown at its end free, outside the watch movement, the rod being associated with a transmission mechanism as defined above.
La présente invention concerne en outre un mouvement horloger comportant un tel organe de commande ainsi qu'une pièce d'horlogerie comportant un tel mouvement horloger.The present invention also relates to a watch movement comprising such a control member and a timepiece comprising such a watch movement.
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:
- la
figure 1 représente une vue en perspective simplifiée d'un mécanisme de transmission selon un mode de réalisation préféré de la présente invention; - les
figures 2a et2b représentent respectivement des vues en coupe transversale du mécanisme de transmission de lafigure 1 , dans des première et seconde configurations respectives, et - les
figures 3a et 3b représentent respectivement des vues de face du mécanisme de transmission de lafigure 1 , dans des première et seconde configurations respectives.
- the
figure 1 is a simplified perspective view of a transmission mechanism according to a preferred embodiment of the present invention; - the
Figures 2a and2b represent respectively cross-sectional views of the transmission mechanism of thefigure 1 in respective first and second configurations, and - the
Figures 3a and 3b represent respectively front views of the transmission mechanism of thefigure 1 in respective first and second configurations.
La
Le mécanisme de transmission est destiné à être implanté en association avec un mouvement horloger 1 logé dans une boîte de pièce d'horlogerie, non visible, par l'intermédiaire d'un cercle d'encageage 2. Le mouvement horloger et le cercle d'encageage ne sont que partiellement représentés en transparence pour des raisons de clarté des figures.The transmission mechanism is intended to be implanted in association with a
Une première partie 4 de tige de commande est partiellement logée à l'intérieur du mouvement horloger 1. La portion de cette tige située dans le mouvement horloger n'a pas été représentée pour simplifier les figures, dans la mesure où elle est conventionnelle. De manière avantageuse, elle est en effet agencée pour coopérer avec une tirette (non illustrée) commandant elle-même les déplacements d'un pignon coulant (non illustré) solidaire en rotation de cette partie 4 de la tige. Ainsi, lorsque la première partie 4 de la tige est déplacée suivant sa direction longitudinale, d'une manière qui sera décrite plus loin, elle entraîne le pivotement de cette tirette qui provoque le déplacement du pignon coulant pour passer alternativement d'une configuration de remontage manuel à une configuration de mise à l'heure, et inversement, d'une manière bien connue de l'homme du métier.A
La portion 5 de la première partie 4 de la tige de commande située à l'extérieur du mouvement horloger diffère sensiblement des structures connues de l'art antérieur. Celle-ci est disposée dans un évidement 6 ménagé dans le cercle d'encageage 2.The
En effet, cette portion 5 porte un premier pignon 8 agencé entre deux flasques 9, 10 en forme générale de disque, ici de même diamètre. Cet ensemble est maintenu fixé sur la portion 5 de la tige par le fait que le flasque 10 est serti à l'extrémité de la portion 5.Indeed, this
De manière avantageuse, mais non limitative, le flasque 9 est ici réalisé d'une pièce avec la portion 5 de la première partie 4 de la tige.Advantageously, but not limited to, the
En alternative au sertissage du flasque 10 sur la portion 5, il est possible de prévoir qu'une vis est engagée axialement dans l'extrémité libre de la portion 5, pour assurer le maintien du flasque 10 et du pignon 8.As an alternative to crimping the
On notera également que la portion 5 présente partiellement une section carrée (non visible) sur laquelle le pignon 8 est engagé, pour que ce dernier soit solidaire en rotation de la première partie de tige 4.It will also be noted that the
L'évidement 6 du cercle d'encageage 2 présente des dimensions telles que la première partie 4 de la tige peut être déplacée axialement entre au moins des première et seconde positions axiales.The
La tige de commande comporte une seconde partie 12 de tige, d'axe décalé en référence à l'axe de la première partie 4 et représentée de manière schématique. On notera notamment que la portion de la pièce d'horlogerie visible sur le haut de la
La seconde partie 12 de tige est destinée à porter une couronne de commande à l'extérieur de la boîte de la pièce d'horlogerie, notamment pour permettre à un utilisateur de remonter manuellement le mouvement horloger ou d'en effectuer une mise à l'heure, de manière conventionnelle.The
Bien entendu, la mise en oeuvre de ces caractéristiques reste possible en relation avec une tige destinée à commander d'autres fonctions de la pièce d'horlogerie, sans sortir du cadre de la présente invention.Of course, the implementation of these characteristics remains possible in relation to a rod intended to control other functions of the timepiece, without departing from the scope of the present invention.
La seconde partie 12 de tige présente une surépaisseur annulaire 14 suivie, en direction de l'intérieur du mouvement horloger, d'une portion 15, de dimensions transversales inférieures à celles de la surépaisseur et de section carrée, la surépaisseur 14 définissant une surface de butée, par sa face interne, pour un second pignon 16. Le second pignon 16 porte un canon 17 et est agencé libre en translation sur la portion 15 de la seconde partie de tige 12, pour être solidaire en rotation de cette dernière.The
L'alésage (non visible) du pignon 16 et/ou de son canon 17 présente une section interne carrée pour coopérer avec le carré de la seconde partie 12 de tige.The bore (not visible) of the
Le second pignon est disposé en prise avec le premier pignon 8 pour transmettre les mouvements de rotation de la seconde partie 12 de la tige à la première partie 4 de la tige. En outre, il apparaît clairement de la vue de la
Dans ce but, le second pignon 16 doit être asservi aux déplacements axiaux de la seconde partie 12 de la tige. Il ressort de son mode de coopération avec la seconde partie de tige 12 que la surface de butée définie par la surépaisseur 14 agit sur le second pignon pour le repousser en direction de l'intérieur du mouvement horloger lors des déplacements de la seconde partie de tige dans cette même direction.For this purpose, the
Pour régler la question de l'asservissement du second pignon dans l'autre sens des déplacements de la seconde partie 12 de tige, il est prévu que le mécanisme de transmission selon la présente invention comporte une tirette 18 - additionnelle par rapport à la tirette conventionnelle déjà présente dans le mouvement horloger, comme mentionné plus haut - agencée de manière à coopérer à la fois avec la seconde partie 12 de tige et le second pignon 16.To solve the question of servocontrol of the second pinion in the other direction of displacements of the
La tirette 18 est destinée à coopérer avec une gorge annulaire 19, ménagée dans la seconde partie de tige 12, de telle manière que la tirette pivote en réponse aux déplacements axiaux de la seconde partie de tige.The
A cet effet, la tirette 18 comprend un doigt 20 disposé dans la gorge annulaire 19 et contre le second pignon 16, du côté du mouvement horloger, de manière à pouvoir repousser ce dernier en direction de l'extérieur lorsque la seconde partie 12 de tige est tirée.For this purpose, the
Il ressort de ce qui précède que lorsque la seconde partie 12 de la tige est poussée, depuis sa position la plus éloignée du mouvement horloger en direction de ce dernier, la surépaisseur annulaire 14 agit sur le second pignon 16, par l'intermédiaire de sa surface de butée, pour le repousser dans cette même direction. La tirette 18 suit le déplacement de la seconde partie de tige 12 en pivotant, du fait de la coopération de son doigt 20 avec la gorge annulaire 19.It follows from the above that when the
Le second pignon 16 agit alors sur le flasque 9 disposé côté mouvement pour le repousser en direction du mouvement, la première partie 4 de la tige suivant le même déplacement.The
Ainsi, l'engrènement entre les premier et second pignons est ininterrompu lors des changements de positions axiales de la tige de commande.Thus, meshing between the first and second pinions is uninterrupted during changes in axial positions of the control rod.
Lorsque la seconde partie de la tige est ramenée dans sa position tirée, par traction de la couronne de commande par un utilisateur, la tirette 18 pivote, du fait de la coopération entre son doigt 20 et la gorge annulaire 19, entraînant dans le même temps le second pignon. Le second pignon agit alors sur l'autre flasque 10 pour exercer une force de traction sur lui, donc sur la première partie 4 de la tige.When the second part of the rod is returned to its pulled position, by pulling the control crown by a user, the
Cette opération est illustrée par le passage de la configuration du mécanisme de la
Dans le même temps, le mécanisme de remontage et de mise à l'heure conventionnel, situé dans le mouvement horloger, remplit son rôle de manière connue.At the same time, the conventional winding and setting mechanism, located in the watch movement, fulfills its role in a known manner.
On notera que le cercle d'encageage 2 comprend ici préférablement un alésage 22 dans lequel est engagée l'extrémité interne de la seconde partie de tige 12, dans le but d'assurer un guidage de cette dernière lors de ses déplacements.Note that the
En ce qui concerne le mode d'assemblage de la tirette à un élément de bâti de la pièce d'horlogerie, il est similaire au mode de fixation habituellement mis en oeuvre.Regarding the method of assembly of the zipper to a frame member of the timepiece, it is similar to the method of attachment usually implemented.
La tirette 18 comporte ici un trou 24 destiné à coopérer avec l'extrémité libre 25 d'une vis 26 de fixation, logée dans un trou adapté du cercle d'encageage 2.The
L'extrémité de la tirette opposée au doigt 20 présente un bec 28 agencé pour coopérer avec l'extrémité libre 30 d'un ressort plat 31 dont la base 32 est également solidaire du cercle d'encageage, au moyen d'une vis (non représentée). L'extrémité libre 30 présente deux crans 33, 34, dont chacun est associé à l'une des positions axiales de la seconde partie 12 de tige en définissant les positions stables de la tirette 18.The end of the pull tab opposite the
Comme mentionné plus haut, il convient de relever que le procédé d'assemblage du mécanisme de transmission selon l'invention est nettement simplifié en référence aux procédés d'assemblage des mécanismes de l'art antérieur. En effet, la première partie 4 de tige ne doit être modifiée qu'à son extrémité externe, par rapport à une tige de commande conventionnelle, avant d'être mise en place dans le mouvement horloger et retenue par une tirette de base. Ensuite, le second pignon 16 peut être mis en place, en prise avec le premier pignon 8, puis la seconde partie 12 de la tige peut être insérée dans son logement, au travers de la boîte de la pièce d'horlogerie (le mouvement horloger ayant été emboîté au préalable). La surépaisseur annulaire 14 définit alors une butée en coopération avec le second pignon, lors de la mise en place de la seconde partie de tige. La tirette 18 peut ensuite être assemblée au cercle d'encageage pour assurer le maintien de la seconde partie de tige et donc de l'ensemble.As mentioned above, it should be noted that the assembly method of the transmission mechanism according to the invention is clearly simplified with reference to methods of assembling mechanisms of the prior art. Indeed, the
Les
Une comparaison des
Il ressort en effet d'une telle comparaison que la seconde partie de tige 12 peut être agencée tout autour de l'axe de la première partie de tige 4, suivant un cercle dont le rayon correspond à l'entraxe X à prévoir entre les deux pignons 8 et 16.It is apparent from such a comparison that the
Ainsi, il est possible, par exemple, de disposer la seconde partie de tige 12 exactement au milieu d'une boîte de montre, suivant son épaisseur, et ce, indépendamment de l'épaisseur d'un éventuel module d'affichage qui serait combiné à un mouvement horloger de base existant.Thus, it is possible, for example, to have the second portion of
Il suffit pour cela d'adapter la forme du cercle d'encageage pour pouvoir disposer la seconde partie de tige 12 à l'endroit souhaité, la simplicité d'assemblage étant inchangée quelle que soit la position de la tige.Simply adjust the shape of the casing circle to be able to have the second portion of
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 les formes et dimensions relatives spécifiquement illustrées et décrites pour les différents ressorts et pignons.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 shapes and relative dimensions specifically illustrated and described for the different springs and sprockets.
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 mécanisme de transmission des mouvements entre les deux parties d'une tige d'axes décalés 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 mechanism for transmitting movements between the two parts of a staggered axis rod, taking up only in part the characteristics disclosed herein without departing from the scope of the present invention.
Il est par exemple possible de mettre en oeuvre des variantes de réalisation différentes de celles décrites en relation avec les figures.It is for example possible to implement different embodiments of those described in relation to the figures.
Ainsi, on peut notamment prévoir que la tirette comporte un second doigt agencé pour coopérer avec le second pignon 16 du côté de l'extérieur, l'un ou l'autre des deux doigts de la tirette coopérant alors avec une gorge annulaire de la seconde partie de tige pour asservir le pivotement de la tirette aux déplacements axiaux de cette dernière. De manière alternative, on peut aussi prévoir que chacun des doigts coopère avec une gorge annulaire adaptée de la seconde partie 12 de la tige, en étant agencé en appui contre un côté du second pignon 16, la provision de la surépaisseur annulaire 14 sur la tige n'étant dans ce cas pas absolument nécessaire.Thus, it can be provided that the pull tab comprises a second finger arranged to cooperate with the
On notera que dans les cas où la seconde partie de tige ne comporte pas la surépaisseur annulaire 14, sa mise en place est approximative dans un premier temps, jusqu'à ce que la tirette soit assemblée pour assurer non seulement son maintien mais également son positionnement axial.Note that in cases where the second rod portion does not have the annular
Par ailleurs, on notera que les premier et second pignons 8 et 16 ne sont pas nécessairement agencés en prise directe pour la mise en oeuvre de la présente invention. Un ou plusieurs renvois intermédiaires peuvent être prévus.Furthermore, it will be noted that the first and
En outre, le mécanisme de transmission selon la présente invention n'est pas limité à la mise en oeuvre d'un organe de commande destiné à effectuer le remontage ou la mise à l'heure de la pièce d'horlogerie. D'autres commandes sont également possibles sans sortir du cadre de l'invention qui est défini par les revendications annexées.In addition, the transmission mechanism according to the present invention is not limited to the implementation of a control member for performing the reassembly or setting time of the timepiece. Other commands are also possible without departing from the scope of the invention which is defined by the appended claims.
Claims (11)
- Mechanism for transmission of axial and rotary movements between two parts (4, 12) of a rod with offset axes for a horology movement (1), a first part (4) of which is designed to be accommodated at least partially in the horology movement whilst being designed to be mobile between at least first and second axial positions, and the second part (12) is designed to support a crown at its free end, on the exterior of the horology movement, the mechanism comprising a device (9, 10, 16) for transmission of the axial movements between said first and second parts, as well as a kinematic connection between a first pinion (8) which is integral in rotation with said first part (4), and a second pinion (16) which is integral in rotation with said second part (12),
the mechanism comprising a pull-out piece (18) which is designed to ensure the retention of said second part of the rod in relation to the horology movement, and co-operates with this part in order to ensure its positioning between at least first and second axial positions, characterized in that said pull-out piece is designed to co-operate with said second pinion (16), such as to subject it to the axial movements of said second part (12) of the rod, at least in the direction going from the interior of the horology movement (1) towards the exterior. - Mechanism according to Claim 1, characterized in that said pull-out piece (18) comprises a first finger (20) which is designed to be placed supported against said second pinion (16), on the side which is closest to the horology movement (1) in relation to said second pinion (16).
- Mechanism according to Claim 2, characterized in that said first finger (20) is also designed to co-operate with a substantially annular groove (19) provided in said second part (12) of the rod.
- Mechanism according to Claim 2, characterized in that said pull-out piece (18) comprises a second finger which is designed to be placed supported against said second pinion (16) on the side which is furthest from the horology movement (1) in relation to said second pinion (16).
- Mechanism according to Claim 4, characterized in that said second finger is designed such that it can also co-operate with a suitable annular groove provided in said second part (12) of the rod.
- Mechanism according to any one of the preceding claims, characterized in that it comprises a stop surface (14) provided on said second part (12) of the rod, and against which said second pinion (16) is arranged in its service position, said stop surface being situated on the side which is furthest from the horology movement (1) in relation to said second pinion (16).
- Mechanism according to any one of the preceding claims, characterized in that said device for transmission of the axial movements comprises first and second flanges (9, 10) which are supported by said first part (4) of the rod, whilst being placed on both sides of said first pinion (8), and having respective diameters larger than that of the latter, said second pinion (16) being engaged between said two flanges (9, 10) in its position in which it is engaged with said first pinion (8).
- Mechanism according to Claim 7, characterized in that said first and second flanges (9, 10) and said first pinion (8) are retained on said first part (4) of the rod by crimping of said second flange (10) on the outer end of the latter, or by means of a screw (10) arranged axially in the outer end of the latter.
- Assembly comprising
a control unit for a horology movement comprising a rod in two rod parts (4, 12) with offset axes, a first part (4) of which is designed to be accommodated in the horology movement (1), whilst being designed to be mobile between at least first and second axial positions, and the second part (12) is designed to support a crown at its free end, on the exterior of the horology movement, and a transmission mechanism according to any one of Claims 1 to 8, in which said rod is associated with said transmission mechanism. - Horology movement (1) comprising an assembly according to Claim 9.
- Horology piece comprising a horology movement (1) according to Claim 10.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20110191622 EP2600214B1 (en) | 2011-12-01 | 2011-12-01 | Transmission mechanism between two portions of a control rod for a clock movement |
CN201280059449.4A CN104024962B (en) | 2011-12-01 | 2012-11-30 | The mechanism of transmission between control two parts of bar of watch and clock movement |
PCT/EP2012/074142 WO2013079689A1 (en) | 2011-12-01 | 2012-11-30 | Mechanism for transmission between two portions of a control rod for a clock movement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20110191622 EP2600214B1 (en) | 2011-12-01 | 2011-12-01 | Transmission mechanism between two portions of a control rod for a clock movement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2600214A1 EP2600214A1 (en) | 2013-06-05 |
EP2600214B1 true EP2600214B1 (en) | 2015-01-28 |
Family
ID=47257859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20110191622 Not-in-force EP2600214B1 (en) | 2011-12-01 | 2011-12-01 | Transmission mechanism between two portions of a control rod for a clock movement |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2600214B1 (en) |
CN (1) | CN104024962B (en) |
WO (1) | WO2013079689A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3839662A1 (en) * | 2019-12-19 | 2021-06-23 | Patek Philippe SA Genève | Mechanism for setting the time of a timepiece comprising a system for setting the time with offset rods |
US20230288874A1 (en) * | 2020-07-30 | 2023-09-14 | Montres Breguet S.A. | Sympathetic timepiece assembly |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH688495B5 (en) * | 1995-09-04 | 1998-04-30 | Smh Management Services Ag | Timepiece including a pull rod and drive mechanism. |
DE19725884B4 (en) | 1997-06-18 | 2010-04-29 | Chopard International S.A. | Clock with two-piece winding and control shaft |
DE60038282T2 (en) | 2000-03-17 | 2009-03-12 | Dubois & Depraz S.A. | Transmission mechanism for rotary motion and axial movement between two staggered axes |
JP4343722B2 (en) * | 2004-01-29 | 2009-10-14 | セイコーインスツル株式会社 | Winding stem structure and watch having the same |
EP1748330B1 (en) | 2005-07-26 | 2009-05-13 | Montres Breguet S.A. | Stem device for winding and setting the time for a watch |
EP2275883B1 (en) * | 2009-07-16 | 2011-12-28 | Rolex Sa | Timepiece |
EP2365407B1 (en) * | 2010-03-08 | 2017-06-28 | Montres Breguet SA | Device for actuating the winding-up and the time setting of a clockwork |
CH704250B1 (en) * | 2010-12-21 | 2015-01-30 | Dubois & Dépraz S A | Transmission mechanism of axial and rotational movements between two offset axes and a timepiece including such a mechanism. |
-
2011
- 2011-12-01 EP EP20110191622 patent/EP2600214B1/en not_active Not-in-force
-
2012
- 2012-11-30 WO PCT/EP2012/074142 patent/WO2013079689A1/en active Application Filing
- 2012-11-30 CN CN201280059449.4A patent/CN104024962B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN104024962A (en) | 2014-09-03 |
EP2600214A1 (en) | 2013-06-05 |
CN104024962B (en) | 2016-10-12 |
WO2013079689A1 (en) | 2013-06-06 |
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