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EP2718770B1 - Device for positioning a threaded crown of a timepiece - Google Patents

Device for positioning a threaded crown of a timepiece Download PDF

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Publication number
EP2718770B1
EP2718770B1 EP12725773.1A EP12725773A EP2718770B1 EP 2718770 B1 EP2718770 B1 EP 2718770B1 EP 12725773 A EP12725773 A EP 12725773A EP 2718770 B1 EP2718770 B1 EP 2718770B1
Authority
EP
European Patent Office
Prior art keywords
coupling member
cover
crown
screwdown
return means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12725773.1A
Other languages
German (de)
French (fr)
Other versions
EP2718770A1 (en
Inventor
Daniel Knuchel
Sébastien Briswalter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Omega SA
Original Assignee
Omega SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Omega SA filed Critical Omega SA
Priority to EP12725773.1A priority Critical patent/EP2718770B1/en
Publication of EP2718770A1 publication Critical patent/EP2718770A1/en
Application granted granted Critical
Publication of EP2718770B1 publication Critical patent/EP2718770B1/en
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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/043—Locking of the operating element, also by mounting in a concealed place
    • 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
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/10—Hermetic sealing of openings, joints, passages or slits of winding stems
    • G04B37/103—Hermetic sealing of openings, joints, passages or slits of winding stems by screwing the crown onto the case

Definitions

  • the present invention relates to a device for adjusting the orientation of screwed elements for timepieces and more particularly for crowns having a pattern or logo on their end face and in which said pattern can be oriented at will.
  • Screwed crowns are commonly used to equip watches in order to improve the sealing of these at their winding or control rod.
  • This type of crown has the particularity of being able to take a unscrewed position in which the watch can be reassembled, put on time etc. and a screwed position in which the ring is screwed and locked on a tube driven or screwed into the middle of the watch case to compress a seal, thus improving the seal of the watch.
  • the screwed position is therefore that which corresponds to the normal position when the watch is worn and which is more or less always the same with the wear of the seal near.
  • a solution for adjusting, in a position or orientation determined, a ring after screwing it on the tube has already been proposed in the document EP 1 124 167 A1 .
  • a shape memory alloy ring is placed either between the middle and the tube, or between the crown and the tube.
  • a temporary clearance between the caseband and the tube respectively between the crown and the tube can be created, which allows an angular adjustment of the crown in its screwed position.
  • a disadvantage of this solution lies in the fact that shape memory alloys are not commonly available in the form of small bars, so that it is difficult and expensive to machine the rings in question in the small dimensions required. for the applications concerned.
  • this process is intended only for the initial assembly of the crown by the watch manufacturer, but not for subsequent adjustment operations of the orientation of the crown, which could damage other parts of the crown. the watch, sensitive to temperature variations.
  • the document EP1701225 discloses a screwable turnable crown comprising a head integral with a winding stem and a cover on which there is an inscription, the head and the cap being secured in rotation by means of frustoconical surfaces held in mutual contact with the aid of an elastic element.
  • the adjustment of the angular position of the cover is performed by removing axially the latter relative to the middle part along the longitudinal axis of the crown.
  • a major drawback of this solution is that the rotational solidarity of the cover relative to the head is ensured only by the friction forces between the frustoconical surfaces, which does not prove sufficiently reliable over the lifetime a watch, and in particular when the compressive forces exerted by the elastic element gradually fade.
  • another disadvantage is that it can not be guaranteed that the same angular position can be obtained accurately, the angular position can be determined only by successive approximations.
  • the document EP1411401 discloses a particular ring comprising, on its upper outer face, a steerable substrate with respect to a head formed by a central body and a side skirt, the substrate being provided with an inscription and being able to be disengaged in rotation from the crown head when pressure is exerted against braking means.
  • the disadvantage of this solution is that it is not robust relative to shocks, the latter may also exert a pressure force on the substrate and thus inadvertently reorient the substrate relative to the body of the ring; Moreover, when gripping the crown it is necessary to take many precautions to not involve any pressure force to the middle part to avoid inadvertent rotation of the substrate, which makes the use rather inconvenient.
  • indexing means can be provided for positioning the substrate in predefined angular positions, the impossibility of correctly grasping the substrate makes the adjustment operation very delicate and not necessarily very accurate.
  • the present invention aims to overcome the drawbacks of the above-mentioned prior art by providing a device for the orientation of a screw crown of simple and economical construction, comprising a pattern such as a logo or a mark and in which the position of the logo or the mark affixed to the end face of said crown can easily be adjusted in a determined position or orientation.
  • Another object of the present invention is to provide a steerable crown device more reliable than those proposed so far.
  • the subject of the invention is a rotatable screwed crown according to claim 1 appended hereto.
  • the orientation of the pattern carried by the cover can be easily adjusted in a determined angular position and reproducible in a sustainable manner relative to the middle part, while simultaneously preventing any error of fortuitous manipulation on the part of the user.
  • the orientation of the indexing means and the direction of the forces exerted by the return means to determine the intensity necessary to adjust the orientation of the crown; the arrangement of the indexing means relative to the coupling member and the direction of the forces exerted by the biasing means also makes it possible to determine if it is desired that this adjustment can be made only when the ring is removed from the housing of the shows, that is to say by the manufacturer during assembly or for example during a revision service, or also by the user of the watch itself, without the aid of a tool.
  • this new construction has the advantage of being invisible to the user from outside the crown, the proposed adjustment device being covered and hidden by the hood. The aesthetics of the watch is thus not affected.
  • Another advantage of the present invention is to be able to adapt to any type of hood thanks to the presence of the coupling element, so that the device can adapt modulairement to potentially any crown of the type having a central opening to house a tube screwed to the middle of a watch.
  • the ring 1 is shown in the screwed position on a threaded tube 2, screwed into a middle part 3 of a watch case by means of the first thread 21, while a tapping 22 cooperates with the thread 51 of a coupling member 5 of tubular form.
  • the tapping 22 of the tube 2 could, however, consist of a 2nd thread and the thread 51 of the coupling member 5 could reciprocally consist of tapping, as on a classic head crown.
  • a seal 23 is also disposed between the tube and the middle part 3.
  • the coupling member 5 is an intermediate element between the cover 11 of the crown 1, which is used to grip the crown by the user, and the middle part 3.
  • the coupling member 5 is intended, on the one hand, to determine several ways of using the crown: in a locking position relative to the caseband 3 - here via the threaded tube 2 - the ring 1 guarantees the tightness of the system but can not be manipulated, while in a setting position, it is axially free to adjust a mode of adjustment and rotation to make the desired adjustment when the latter is conventionally connected mechanically to a winding stem and a zipper whose axial position defines the adjustment mode.
  • the coupling member 5 similarly determines, depending on the relative axial position of the coupling member 5 and the cover 11, a setting mode and a locked mode for the orientation of the ring gear.
  • the locked mode for angular orientation, referenced P1 is illustrated in FIG. figure 1
  • the angular orientation adjustment mode, referenced P2 is illustrated in FIG. figure 2 .
  • the coupling member 5 is in the form of a barrel inserted inside the threaded tube 2.
  • the central part of the crown is connected to a winding stem (not shown) of the clockwork movement via the threaded blind hole 71 made in the lower part 72 of a piston 7, housed in an axial cavity 53 inside the coupling member 5.
  • the piston 7 slides against a spring 8 abuts on an inner surface 114 of the lid 112 of the cover 11, and allows in particular to bring out the cover 11 of the middle when the crown 1 of the tube 2 is unscrewed to adjust.
  • the piston 7 being intended to be connected to the winding stem, its axial position relative to the middle part is indexed according to typically 3 discrete values, a first corresponding for example to the winding of the barrel, another to the time adjustment and a third to the setting of the date.
  • the retaining rings 61, 62 could be replaced, as an alternative, by an annular groove formed in the axial skirt 111 of the cover 11 which extends along the tube 2.
  • the cover 11 is assembled to the coupling member 5 so that they are usually integral in rotation and axially from one another; this assembly is made so as to be detachable or reversible.
  • the cover 11 is formed by a cover 112 and an axial skirt 111, which mutually define a central opening 115 inside the ring 1 - referenced only on the figure 3 for the sake of readability - and in which is arranged the entire end of the threaded tube 2 integral with the middle part 3, but also the coupling member 5.
  • the lid 111 comprises an upper surface 113 on which is affixed a pattern such as a logo or a mark L visible from outside the crown 1 can be guessed for example on the left side of the figure the Omega logo of the plaintiff.
  • the ring further comprises return means 4 which tend to make the cover 11 and the coupling member 5 rotationally integral by exerting a force F1 of compression between indexing means 551 of the coupling member 5 and the cover 11.
  • the return means 4 are interposed between the inner surface 114 of the substantially flat cover 112 and the upper surface 54, which is also substantially flat, of the coupling member 5, and maintain a toothing 551 arranged on the lower face of a flange 55 bearing on the toothing 91 of an intermediate element 9, integral with the cover 11 and fixed for example by welding, crimping or any other appropriate means.
  • the force F1 acts in the direction of the axis of rotation AA, towards the inside of the middle part 3 and the shape and the plastic properties of the material of the return means 4 are chosen so that the intensity of the force F1 exerted is much greater than the force required to change the axial position of a conventional pull, which in general is much lower than a dozen Newton.
  • the return means 4 are arranged such that the intensity of the force F1 is preferably equal to about 14 Newton, which corresponds to the aforementioned criteria without however requiring the exercise of a force of intensity too high to disengage the cover 11 of the coupling member 5 and perform the adjustment operation of the orientation of the ring 1.
  • the coupling member 5 housing the piston in its axial cavity 53 also has a lower end 52 on which internal abutment surfaces 521 are arranged to limit the stroke of the piston relative to the coupling element 5 when the latter is unscrewed. of the tube 2.
  • FIGS. 2A and 2B show two preferred embodiments of a coupling member 5 according to the invention, each comprising a collar 55 on which are arranged the teeth 551 used as indexing means, and a thread 51 intended to cooperate with a solidarity part of the case, such as the threaded and tapped tube 2 described in figure 1 .
  • the toothing is arranged obliquely with respect to the axis AA of rotation which corresponds to that of the ring 1, whereas on the Figure 2B the toothing is arranged on a lower face of the flange in a plane perpendicular to this axis of rotation AA.
  • the indexing means consist of the collaboration of two teeth set against each other mutually, the first toothing 551 being arranged on the coupling member 5 and the second toothing 91 being arranged on one element. intermediate 9 integral with the cover 11.
  • the second toothing 91 is directly arranged on an inner wall of the cover 11, and / or that one of the teeth 551 or 91 is replaced by an elastic indexing element.
  • a hexagonal opening 56 formed in the lower end of the coupling member 52 can be distinguished.
  • This opening is intended to cooperate with the lower end of the piston 72, which in this case also takes a hexagonal shape of corresponding size.
  • the arrangement of a particular section described can easily handle the ring 1 when the latter is removed on tube 2 , as on the figure 3 described in paragraph next, with a tool like a traditional hexagonal key.
  • the section of the tool locks the piston 7 in rotation while the lower end 52 of the coupling member 5 has a bearing surface for the tool to exert a force F2 against the force F1 exerted by the return means 4 in order to separate the cover 11 of the coupling member 5 and adjust the orientation of the ring.
  • Other sections for the opening 56 for example square or triangular type are also possible to perform this manipulation, depending on the tool that we wish to privilege.
  • the figure 3 shows a similar view to the figure 1 , i.e. a sagittal section, of a crown 1 according to a preferred embodiment of the invention with a coupling member 5 in accordance with that shown in FIG. Figure 2B with a toothing 551 in a plane orthogonal to the axis of rotation AA of the crown 1.
  • the ring 1 being disassembled, the tube 2 is no longer visible in this figure and the seal 6 is thus no longer compressed; all other parts are identical.
  • the spring 8 of the piston 7 can extend since there is no longer axial stress or through the thread 51 for the position of the cover 11 nor by the indexed position of the winding stem on which is intended
  • it is not the compressed or extended position of the spring 8 of the piston 7 which determines in which position P1 of locking or P2 of adjustment of orientation the crown 1 is located, this position being defined solely by the position of the return means 4, which are associated with indexing means 551,91 in rotation of the ring 1 according to the invention.
  • the figure 3 shows the system in adjustment position P2 because the return means are compressed by applying a force F2 in the opposite direction to the force F1.
  • the cover 11 and the coupling member 5 are axially movable relative to each other, and reversibly, between the first position P1 of the figure 1 in which the cover 11 is integral in rotation with respect to the coupling member 5, and the second position P2 of the figure 3 in which the cover 11 is free to rotate about the axis of rotation AA of said screwed crown 1, because the teeth 551 of the flange 55 of the coupling element 5 and 91 respectively of the intermediate element 9 are no longer in mutual engagement.
  • the return means 4 and said indexing means are determined so that the transition from the position P1 to the position P2 requires the exercise of a force F2 against the return means 4 of an intensity at least three times greater than the force F1 exerted by the return means 4 at rest, that is to say in the locking position P1, so that that any error of fortuitous manipulation is excluded.
  • the force F1 exerted by the return means 4 associated with the indexing means according to the invention is of the order of 14 Newton, it will be possible for example to configure the depth of the teeth 551 and 91 as well as the plastic properties.
  • the return means 4 can in this case be compressed, but the force to be exerted to separate the teeth should be much greater than that which brings the cover 11 in its position proximal to the middle part, as discussed above for the determination of the forces used for the axial indexing of the positions of the winding stem.
  • the hood would therefore first be returned to its proximal position, before the teeth 551-91 can be detached. Now in this position, no axial movement is possible towards the inside of middle part 3 except by screwing on tube 2, and therefore the return means 4 can no longer be compressed to disengage the teeth. 551-91.
  • the toothing 551 of the coupling member 5 in the opposite direction on its upper surface 54, the other set of teeth 91 directly on the internal surface of the cover 114 and the return means 4 below a collar 55 to exert a force F1 this time in an axial direction not inwardly but outwardly of the middle part 3.
  • the passage from the position P1 to the position P2 could thus be carried out by pulling the cover 11 outside the case 3 when the ring 1 is in the screwed position on the tube 2, or when the end of the winding stem is distal to the middle part 3, that is to say the farthest possible axially with respect to the middle part 3.
  • the embodiment described with the aid of the figures has the advantage of only requiring a restricted space between the upper surface 54 of the coupling member 5 and the inner surface of the cover 114. in the central opening 115 ..
  • the cover 112 of the cover 11 carrying the logo L can be easily moved angularly to a desired position by proceeding as follows.
  • the cover 11 is held in the non-integral position P2 of the coupling member 5 by printing a force F2 on the lower end 52 of the coupling member towards the outside of the caseband 3, or, if the ring 1 is disassembled, to 112. It can then be oriented by rotating it in a desired angular position, which will be reproducible thanks to the indexing teeth for a number of discrete positions equal to the number of teeth, which gives an indication at the same time of the fineness of the adjustment. .
  • cover attached to the coupling member 5 allows the manufacturer of crowns to have a stock of coupling elements 5 and use these elements with covers 11 having different patterns or other elements such as precious stones or the like, or having external non-cylindrical shapes, for example square, oval or any other particular geometrical shape.
  • the screwed element 1 may also consist for example of a valve, manual or automatic, and a pusher, a corrector or an orientable background. These examples are not part of the claimed invention.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Adornments (AREA)
  • Electric Clocks (AREA)
  • Surgical Instruments (AREA)

Description

La présente invention concerne un dispositif pour régler l'orientation d'éléments vissés pour pièces d'horlogerie et plus particulièrement pour des couronnes comportant un motif ou un logo sur leur face d'extrémité et dans lesquelles ledit motif peut être orienté à souhait.The present invention relates to a device for adjusting the orientation of screwed elements for timepieces and more particularly for crowns having a pattern or logo on their end face and in which said pattern can be oriented at will.

Les couronnes vissées sont couramment utilisées pour équiper des montres dans le but d'améliorer l'étanchéité de celles-ci au niveau de leur tige de remontage ou de commande. Ce type de couronne a la particularité de pouvoir prendre une position dévissée dans laquelle la montre peut être remontée, mise à l'heure etc. et une position vissée dans laquelle la couronne est vissée et bloquée sur un tube chassé ou vissé dans la carrure de la boîte de montre afin de comprimer un joint d'étanchéité, améliorant ainsi l'étanchéité de la montre. La position vissée est donc celle qui correspond à la position normale lorsque la montre est portée et qui est plus ou moins toujours la même à l'usure du joint d'étanchéité près.Screwed crowns are commonly used to equip watches in order to improve the sealing of these at their winding or control rod. This type of crown has the particularity of being able to take a unscrewed position in which the watch can be reassembled, put on time etc. and a screwed position in which the ring is screwed and locked on a tube driven or screwed into the middle of the watch case to compress a seal, thus improving the seal of the watch. The screwed position is therefore that which corresponds to the normal position when the watch is worn and which is more or less always the same with the wear of the seal near.

La fabrication et le montage de ces couronnes vissées sur des boites de montre sont bien connus. Toutefois, les procédés de montage de ces couronnes sont mal adaptés aux couronnes vissées portant sur leur face d'extrémité une inscription ou un motif, par exemple un logo, une marque de fabrique ou un signe analogue. En effet, les procédés de montage connus ne permettent généralement pas d'amener la couronne dans une orientation déterminée par rapport à la boîte après leur vissage, ce qui nuit à l'esthétique de la boîte lorsqu'une inscription est apposée sur la face d'extrémité de la couronne. Cette situation est bien entendu inacceptable lorsque ces couronnes équipent des produits de luxe et de haute qualité.The manufacture and assembly of these crowns screwed on watch cases are well known. However, the methods of mounting these crowns are poorly suited to screwed crowns bearing on their end face an inscription or a pattern, for example a logo, a trademark or a similar sign. Indeed, the known assembly methods do not generally allow to bring the crown in a specific orientation relative to the box after screwing, which affects the aesthetics of the box when an inscription is affixed to the face of the box. end of the crown. This situation is of course unacceptable when these crowns equip luxury and high quality products.

Une solution permettant d'ajuster, dans une position ou orientation déterminée, une couronne après vissage de celle-ci sur le tube a été déjà proposée dans le document EP 1 124 167 A1 . Selon ce document, une bague en alliage à mémoire de forme est placée soit entre la carrure et le tube, soit entre la couronne et le tube. En jouant sur la déformation de la bague, en particulier en diminuant son diamètre en soumettant la montre à des températures déterminées, un jeu temporaire entre la carrure et le tube respectivement entre la couronne et le tube peut être créé, jeu qui permet un ajustement angulaire de la couronne dans sa position vissée. Un inconvénient de cette solution réside dans le fait que les alliages à mémoire de forme ne sont pas couramment disponibles sous forme de barres de faibles dimensions, de sorte qu'il est difficile et coûteux d'usiner les bagues en question dans les faibles dimensions requises pour les applications concernées. Par ailleurs, ce processus n'est destiné qu'au montage initial de la couronne par le fabricant de la montre, mais pas pour des opérations de réglage ultérieures de l'orientation de la couronne, qui risqueraient d'endommager d'autres pièces de la montre, sensibles aux variations de température.A solution for adjusting, in a position or orientation determined, a ring after screwing it on the tube has already been proposed in the document EP 1 124 167 A1 . According to this document, a shape memory alloy ring is placed either between the middle and the tube, or between the crown and the tube. By acting on the deformation of the ring, in particular by decreasing its diameter by subjecting the watch to determined temperatures, a temporary clearance between the caseband and the tube respectively between the crown and the tube can be created, which allows an angular adjustment of the crown in its screwed position. A disadvantage of this solution lies in the fact that shape memory alloys are not commonly available in the form of small bars, so that it is difficult and expensive to machine the rings in question in the small dimensions required. for the applications concerned. Moreover, this process is intended only for the initial assembly of the crown by the watch manufacturer, but not for subsequent adjustment operations of the orientation of the crown, which could damage other parts of the crown. the watch, sensitive to temperature variations.

Le document EP1701225 décrit une couronne orientable vissée comprenant une tête solidaire d'une tige de remontoir et un capot sur lequel figure une inscription, la tête et le capot étant solidarisées en rotation à l'aide de surfaces tronconiques maintenues en contact mutuel à l'aide d'un élément élastique. Le réglage de la position angulaire du capot est effectué en retirant axialement ce dernier par rapport à la carrure selon l'axe longitudinal de la couronne. Un inconvénient majeur de cette solution est que la solidarité en rotation du capot par rapport à la tête n'est assurée que par les seules des forces de friction entre les surfaces tronconiques, ce qui ne s'avère pas suffisamment fiable sur la durée de vie d'une montre, et notamment lorsque les forces de compression exercées par l'élément élastique s'estompent progressivement. Par ailleurs, un autre inconvénient est de ne pas pouvoir garantir qu'une même position angulaire puisse être obtenue de façon précise, la position angulaire ne pouvant être déterminée que par approximations successives.The document EP1701225 discloses a screwable turnable crown comprising a head integral with a winding stem and a cover on which there is an inscription, the head and the cap being secured in rotation by means of frustoconical surfaces held in mutual contact with the aid of an elastic element. The adjustment of the angular position of the cover is performed by removing axially the latter relative to the middle part along the longitudinal axis of the crown. A major drawback of this solution is that the rotational solidarity of the cover relative to the head is ensured only by the friction forces between the frustoconical surfaces, which does not prove sufficiently reliable over the lifetime a watch, and in particular when the compressive forces exerted by the elastic element gradually fade. Furthermore, another disadvantage is that it can not be guaranteed that the same angular position can be obtained accurately, the angular position can be determined only by successive approximations.

Le document EP1411401 décrit une couronne particulière comprenant, sur sa face supérieure externe, un substrat orientable par rapport à une tête formée par un corps central et une jupe latérale, le substrat étant muni d'une inscription et pouvant être désolidarisé en rotation de la tête de la couronne lorsqu'on exerce une pression allant à l'encontre de moyens de freinage. L'inconvénient de cette solution est qu'elle est peu robuste par rapport aux chocs, ces derniers pouvant également exercer une force de pression sur le substrat et donc réorienter intempestivement le substrat par rapport au corps de la couronne; par ailleurs lors de la préhension de la couronne il est nécessaire de prendre de nombreuses précautions pour ne faire intervenir aucune force de pression vers la carrure si on veut éviter une rotation intempestive du substrat, ce qui en rend l'usage assez malcommode. Par ailleurs, bien que des moyens d'indexation puissent être prévus pour positionner le substrat dans des positions angulaires prédéfinies, l'impossibilité de saisir correctement le substrat rend l'opération de réglage très délicate et pas nécessairement très précise.The document EP1411401 discloses a particular ring comprising, on its upper outer face, a steerable substrate with respect to a head formed by a central body and a side skirt, the substrate being provided with an inscription and being able to be disengaged in rotation from the crown head when pressure is exerted against braking means. The disadvantage of this solution is that it is not robust relative to shocks, the latter may also exert a pressure force on the substrate and thus inadvertently reorient the substrate relative to the body of the ring; Moreover, when gripping the crown it is necessary to take many precautions to not involve any pressure force to the middle part to avoid inadvertent rotation of the substrate, which makes the use rather inconvenient. Furthermore, although indexing means can be provided for positioning the substrate in predefined angular positions, the impossibility of correctly grasping the substrate makes the adjustment operation very delicate and not necessarily very accurate.

La présente invention a pour but de remédier aux inconvénients de l'art antérieur susmentionné en fournissant un dispositif pour l'orientation d'une couronne à vis de construction simple et économique, comportant un motif tel qu'un logo ou une marque et dans laquelle la position du logo ou de la marque apposée sur la face d'extrémité de ladite couronne peut aisément être ajustée dans une position ou orientation déterminée.The present invention aims to overcome the drawbacks of the above-mentioned prior art by providing a device for the orientation of a screw crown of simple and economical construction, comprising a pattern such as a logo or a mark and in which the position of the logo or the mark affixed to the end face of said crown can easily be adjusted in a determined position or orientation.

Un autre but de la présente invention est de fournir un dispositif de couronne orientable plus fiable que ceux proposés jusqu'à présent.Another object of the present invention is to provide a steerable crown device more reliable than those proposed so far.

A cet effet, l'invention a pour objet une couronne vissée orientable selon la revendication 1 annexée.For this purpose, the subject of the invention is a rotatable screwed crown according to claim 1 appended hereto.

Grâce à ces caractéristiques, l'orientation du motif porté par le capot peut être aisément ajustée dans une position angulaire déterminée et reproductible de manière durable par rapport à la carrure, en empêchant parallèlement toute erreur de manipulation fortuite de la part de l'utilisateur. L'orientation des moyens d'indexation et ainsi que le sens des forces exercées par les moyens de rappel permet de déterminer l'intensité nécessaire pour effectuer le réglage de l'orientation de la couronne; l'agencement des moyens d'indexation par rapport au membre de couplage et la direction des forces exercées par les moyens de rappel permet par ailleurs de déterminer si on souhaite que ce réglage ne puisse être effectué que lorsque la couronne est démontée du boîtier de la montre, c'est-à-dire par le fabricant lors du montage ou par exemple lors d'un service de révision, ou encore également par l'utilisateur de la montre lui-même, sans l'aide d'un outil.Thanks to these characteristics, the orientation of the pattern carried by the cover can be easily adjusted in a determined angular position and reproducible in a sustainable manner relative to the middle part, while simultaneously preventing any error of fortuitous manipulation on the part of the user. The orientation of the indexing means and the direction of the forces exerted by the return means to determine the intensity necessary to adjust the orientation of the crown; the arrangement of the indexing means relative to the coupling member and the direction of the forces exerted by the biasing means also makes it possible to determine if it is desired that this adjustment can be made only when the ring is removed from the housing of the shows, that is to say by the manufacturer during assembly or for example during a revision service, or also by the user of the watch itself, without the aid of a tool.

De plus, cette nouvelle construction présente l'avantage d'être invisible pour l'utilisateur depuis l'extérieur de la couronne, le dispositif de réglage proposé étant recouvert et caché par le capot. L'esthétique de la montre n'en est ainsi pas affectée.In addition, this new construction has the advantage of being invisible to the user from outside the crown, the proposed adjustment device being covered and hidden by the hood. The aesthetics of the watch is thus not affected.

Un autre avantage de la présente invention est de pouvoir s'adapter à tout type de capot grâce à la présence de l'élément de couplage, de telle sorte que le dispositif peut s'adapter modulairement à potentiellement toute couronne du type ayant une ouverture centrale pour y loger un tube vissé à la carrure d'une montre.Another advantage of the present invention is to be able to adapt to any type of hood thanks to the presence of the coupling element, so that the device can adapt modulairement to potentially any crown of the type having a central opening to house a tube screwed to the middle of a watch.

.D'autres caractéristiques et avantages de la présente invention apparaîtront dans la description suivante d'un mode de réalisation préféré, présenté à titre d'exemple non limitatif en référence aux dessins annexés, dans lesquels:

  • la figure 1 montre une vue en coupe d'une couronne à vis pourvue du dispositif de réglage d'orientation selon un mode de réalisation préférentiel de l'invention, en position vissée sur la carrure;
  • les figures 2A et 2B montrent deux modes de réalisation préférentiels d'un membre de couplage selon l'invention;
  • la figure 3 est une vue en coupe similaire à la figure 2, la couronne étant représentée dans une position dans laquelle son capot est désolidarisé de la tête en vu de l'orientation angulaire dans une position déterminée du motif porté par le capot, en position désolidarisée de la carrure.
Other features and advantages of the present invention will appear in the following description of a preferred embodiment, presented by way of non-limiting example with reference to the accompanying drawings, in which:
  • the figure 1 shows a sectional view of a screw ring provided with the orientation adjustment device according to a preferred embodiment of the invention, in a screwed position on the middle part;
  • the Figures 2A and 2B show two preferred embodiments of a coupling member according to the invention;
  • the figure 3 is a sectional view similar to the figure 2 , the ring being shown in a position in which its cover is detached from the head in view of the angular orientation in a given position of the pattern carried by the cover, in the disengaged position of the middle part.

Sur le mode de réalisation préférentiel illustré par la figure 1, on voit une vue en coupe sagittale d'une couronne vissée désignée par la référence générale 1, selon son axe de rotation A-A, pour y dévoiler le mécanisme de réglage de l'orientation selon un mode de réalisation préférentiel de l'invention. La couronne 1 y est représentée en position vissée sur un tube fileté 2, vissé dans une carrure 3 d'une boîte de montre au moyen du premier filetage 21, tandis qu'un taraudage 22 coopère avec le filetage 51 d'un membre de couplage 5 de forme tubulaire. Selon un mode de réalisation alternatif, le taraudage 22 du tube 2 pourrait toutefois consister en un 2e filetage et le filetage 51 du membre de couplage 5 pourrait réciproquement consister en un taraudage, comme sur une tête de couronne classique. Un joint d'étanchéité 23 par ailleurs est disposé entre le tube et la carrure 3.In the preferred embodiment illustrated by the figure 1 , a sagittal sectional view of a screwed crown designated by the general reference 1, according to its axis of rotation AA, to reveal the adjustment mechanism of the orientation according to a preferred embodiment of the invention. The ring 1 is shown in the screwed position on a threaded tube 2, screwed into a middle part 3 of a watch case by means of the first thread 21, while a tapping 22 cooperates with the thread 51 of a coupling member 5 of tubular form. According to an alternative embodiment, the tapping 22 of the tube 2 could, however, consist of a 2nd thread and the thread 51 of the coupling member 5 could reciprocally consist of tapping, as on a classic head crown. A seal 23 is also disposed between the tube and the middle part 3.

Le membre de couplage 5 est un élément intermédiaire entre le capot 11 de la couronne 1, qui est sert à la préhension de la couronne par l'utilisateur, et la carrure 3. Le membre de couplage 5 est destiné, d'une part, à déterminer plusieurs modes d'usage de la couronne : dans une position de verrouillage par rapport à la carrure 3 - ici par l'intermédiaire du tube fileté 2 - la couronne 1 garantit l'étanchéité du système mais ne peut pas être manipulée, tandis que dans une position de réglage, elle est libre axialement pour ajuster un mode de réglage et en rotation pour effectuer le réglage désiré lorsque cette dernière est classiquement reliée mécaniquement à une tige de remontoir et une tirette dont la position axiale définit le mode de réglage. D'autre part, le membre de couplage 5 détermine similairement, en fonction de la position axiale relative du membre de couplage 5 et du capot 11, un mode de réglage et un mode verrouillé pour l'orientation de la couronne. Le mode verrouillé pour l'orientation angulaire, référencé P1, est illustré à la figure 1, tandis que le mode de réglage de l'orientation angulaire, référencé P2, est illustré à la figure 2. Selon le mode de réalisation préférentiel illustré, le membre de couplage 5 se présente sous la forme d'un canon inséré à l'intérieur du tube fileté 2.The coupling member 5 is an intermediate element between the cover 11 of the crown 1, which is used to grip the crown by the user, and the middle part 3. The coupling member 5 is intended, on the one hand, to determine several ways of using the crown: in a locking position relative to the caseband 3 - here via the threaded tube 2 - the ring 1 guarantees the tightness of the system but can not be manipulated, while in a setting position, it is axially free to adjust a mode of adjustment and rotation to make the desired adjustment when the latter is conventionally connected mechanically to a winding stem and a zipper whose axial position defines the adjustment mode. On the other hand, the coupling member 5 similarly determines, depending on the relative axial position of the coupling member 5 and the cover 11, a setting mode and a locked mode for the orientation of the ring gear. The locked mode for angular orientation, referenced P1, is illustrated in FIG. figure 1 , while the angular orientation adjustment mode, referenced P2, is illustrated in FIG. figure 2 . According to the preferred embodiment illustrated, the coupling member 5 is in the form of a barrel inserted inside the threaded tube 2.

Sur l'illustration de la figure 1, la partie centrale de la couronne est reliée à une tige de remontoir (non représentée) du mouvement d'horlogerie par l'intermédiaire du trou borgne 71 taraudé aménagé dans la partie inférieure 72 d'un piston 7, logé dans une cavité axiale 53 à l'intérieur du membre de couplage 5. Le piston 7 coulisse à l'encontre d'un ressort 8 en butée sur une surface interne 114 du couvercle 112 du capot 11, et permet notamment de faire ressortir le capot 11 de la carrure lorsqu'on dévisse la couronne 1 du tube 2 pour effectuer un réglage. Le piston 7 étant destiné à être relié à la tige de remontoir, sa position axiale par rapport à la carrure est indexée selon typiquement 3 valeurs discrètes, une première correspondant par exemple au remontage du barillet, une autre au réglage horaire et une troisième au réglage du quantième. Un joint 6, comme par exemple un O-Ring, est interposé le tube fileté 2 et la jupe axiale 111 du capot 11 de manière à garantir l'étanchéité de la montre; en position vissée de la couronne, il est maintenu axialement entre des bagues 61,62 et compressé sur une portion du tube 2, comme montré à a figure 1. Les bagues 61,62 de maintien pourraient être remplacées, à titre d'alternative, par une gorge annulaire ménagée dans la jupe axiale 111 du capot 11 qui s'étend le long du tube 2.On the illustration of the figure 1 , the central part of the crown is connected to a winding stem (not shown) of the clockwork movement via the threaded blind hole 71 made in the lower part 72 of a piston 7, housed in an axial cavity 53 inside the coupling member 5. The piston 7 slides against a spring 8 abuts on an inner surface 114 of the lid 112 of the cover 11, and allows in particular to bring out the cover 11 of the middle when the crown 1 of the tube 2 is unscrewed to adjust. The piston 7 being intended to be connected to the winding stem, its axial position relative to the middle part is indexed according to typically 3 discrete values, a first corresponding for example to the winding of the barrel, another to the time adjustment and a third to the setting of the date. A seal 6, such as an O-ring, is interposed the threaded tube 2 and the axial skirt 111 of the cover 11 so as to ensure the tightness of the watch; in the screwed position of the ring, it is held axially between rings 61, 62 and compressed on a portion of tube 2, as shown in FIG. figure 1 . The retaining rings 61, 62 could be replaced, as an alternative, by an annular groove formed in the axial skirt 111 of the cover 11 which extends along the tube 2.

Selon l'invention, le capot 11 est assemblé au membre de couplage 5 de façon à ce qu'ils soient habituellement solidaires en rotation et axialement de l'un de l'autre; cet assemblage est réalisé de manière à être détachable ou réversible.According to the invention, the cover 11 is assembled to the coupling member 5 so that they are usually integral in rotation and axially from one another; this assembly is made so as to be detachable or reversible.

Le capot 11 est formé par un couvercle 112 et d'une jupe axiale 111, qui définissent mutuellement une ouverture centrale 115 à l'intérieur de la couronne 1 - référencée uniquement sur la figure 3 pour des raisons de lisibilité - et dans laquelle est disposée tout l'abord l'extrémité du tube fileté 2 solidaire de la carrure 3, mais également le membre de couplage 5. Le couvercle 111 comprend une surface supérieure 113 sur laquelle est apposé un motif tel qu'un logo ou une marque L visible depuis l'extérieur de la couronne 1 on peut deviner par exemple sur la partie gauche de la figure le logo Omega de la demanderesse.The cover 11 is formed by a cover 112 and an axial skirt 111, which mutually define a central opening 115 inside the ring 1 - referenced only on the figure 3 for the sake of readability - and in which is arranged the entire end of the threaded tube 2 integral with the middle part 3, but also the coupling member 5. The lid 111 comprises an upper surface 113 on which is affixed a pattern such as a logo or a mark L visible from outside the crown 1 can be guessed for example on the left side of the figure the Omega logo of the plaintiff.

La couronne comprend en outre des moyens de rappel 4 qui tendent à rendre solidaire en rotation le capot 11 et le membre de couplage 5 en exerçant une force F1 de compression entre des moyens d'indexation 551 du membre de couplage 5 et le capot 11. Selon le mode de réalisation préférentiel illustré, les moyens de rappel 4 sont interposés entre la surface interne 114 du couvercle 112, sensiblement plane, et la surface supérieure 54, également sensiblement plane, du membre de couplage 5, et maintiennent une denture 551 agencée sur la face inférieure d'une collerette 55 en appui sur la denture 91 d'un élément intermédiaire 9, solidaire du capot 11 et fixée par exemple par soudage, sertissage ou tout autre moyen approprié. Selon le mode de réalisation illustré, la force F1 agit dans la direction de l'axe de rotation A-A, vers l'intérieur de la carrure 3 et la forme et les propriétés plastiques du matériau des moyens de rappel 4 sont choisies de telle sorte que l'intensité de la force F1 exercée soit largement supérieure à la force requise pour changer la position axiale d'une tirette classique, qui en général est très inférieure à une dizaine de Newton. Selon un mode de réalisation préférentiel, les moyens de rappel 4 sont agencés de telle sorte que l'intensité de la force F1 soit de préférence égale à environ 14 Newton, qui correspond aux critères précités sans toutefois requérir l'exercice d'une force d'intensité trop élevée pour désolidariser le capot 11 du membre de couplage 5 et effectuer l'opération de réglage de l'orientation de la couronne 1.The ring further comprises return means 4 which tend to make the cover 11 and the coupling member 5 rotationally integral by exerting a force F1 of compression between indexing means 551 of the coupling member 5 and the cover 11. According to the preferred embodiment illustrated, the return means 4 are interposed between the inner surface 114 of the substantially flat cover 112 and the upper surface 54, which is also substantially flat, of the coupling member 5, and maintain a toothing 551 arranged on the lower face of a flange 55 bearing on the toothing 91 of an intermediate element 9, integral with the cover 11 and fixed for example by welding, crimping or any other appropriate means. According to the illustrated embodiment, the force F1 acts in the direction of the axis of rotation AA, towards the inside of the middle part 3 and the shape and the plastic properties of the material of the return means 4 are chosen so that the intensity of the force F1 exerted is much greater than the force required to change the axial position of a conventional pull, which in general is much lower than a dozen Newton. according to a preferred embodiment, the return means 4 are arranged such that the intensity of the force F1 is preferably equal to about 14 Newton, which corresponds to the aforementioned criteria without however requiring the exercise of a force of intensity too high to disengage the cover 11 of the coupling member 5 and perform the adjustment operation of the orientation of the ring 1.

Le membre de couplage 5 logeant le piston dans sa cavité axiale 53 présente par ailleurs une extrémité inférieure 52 sur laquelle sont agencées des surfaces internes de butée 521 pour limiter la course du piston par rapport à l'élément de couplage 5 lorsque ce dernier est dévissé du tube 2.The coupling member 5 housing the piston in its axial cavity 53 also has a lower end 52 on which internal abutment surfaces 521 are arranged to limit the stroke of the piston relative to the coupling element 5 when the latter is unscrewed. of the tube 2.

Les figures 2A et 2B montrent deux modes de réalisation préférentiels d'un membre de couplage 5 selon l'invention, comprenant chacun une collerette 55 sur laquelle sont aménagées les dentures 551 utilisées comme moyens d'indexation, ainsi qu'un filetage 51 destiné à coopérer avec une pièce solidaire de la carrure, comme par exemple le tube 2 fileté et taraudé décrit à la figure 1. Selon le mode de réalisation de la figure 2A, la denture est agencée de manière oblique par rapport à l'axe A-A de rotation qui correspond à celui de la couronne 1, tandis que sur la figure 2B la denture est agencée sur une face inférieure de la collerette dans un plan perpendiculaire à cet axe de rotation A-A. L'intérêt d'une denture oblique par rapport à une denture dans un plan perpendiculaire à l'axe de rotation A-A consiste, lorsque les forces exercées par les moyens de rappel 4 le sont dans la direction de cet axe de rotation A-A, à requérir un déplacement plus important du membre de couplage 5 pour désengager la denture 551, puisque cette dernière s'étend sur une distance axiale plus importante. La force à exercer à l'encontre des moyens de rappel 4 sera donc plus importante et la sécurité d'engrenage meilleure envers des erreurs de manipulation éventuelles. Si on souhaite par conséquent faciliter le désengagement de la denture 551, on pourra privilégier la variante de la figure 2B, par exemple si aucune erreur de manipulation n'est possible pour l'utilisateur, comme c'est le cas pour la variante décrite aux figures 1 et 3, comme expliqué ci-après.The Figures 2A and 2B show two preferred embodiments of a coupling member 5 according to the invention, each comprising a collar 55 on which are arranged the teeth 551 used as indexing means, and a thread 51 intended to cooperate with a solidarity part of the case, such as the threaded and tapped tube 2 described in figure 1 . According to the embodiment of the Figure 2A , the toothing is arranged obliquely with respect to the axis AA of rotation which corresponds to that of the ring 1, whereas on the Figure 2B the toothing is arranged on a lower face of the flange in a plane perpendicular to this axis of rotation AA. The advantage of an oblique toothing relative to a toothing in a plane perpendicular to the axis of rotation AA is, when the forces exerted by the return means 4 are in the direction of this axis of rotation AA, to require a greater displacement of the coupling member 5 to disengage the toothing 551, since the latter extends over a greater axial distance. The force to be exerted against the return means 4 will therefore be greater and the gear safety better against possible handling errors. If one therefore wishes to facilitate the disengagement of the toothing 551, the variant of the Figure 2B for example if no manipulation error is possible for the user, as is the case for the variant described in Figures 1 and 3 as explained below.

Selon le mode de réalisation préférentiel décrit, les moyens d'indexation consistent en la collaboration de deux dentures plaquées mutuellement les unes contre les autres, la première denture 551 étant agencée sur le membre de couplage 5 et la deuxième denture 91 étant agencée sur un élément intermédiaire 9 solidaire du capot 11. On pourrait toutefois imaginer que la deuxième denture 91 soit directement aménagée sur une paroi interne du capot 11, et/ou que l'une des dentures 551 ou 91 soit remplacée par un élément élastique d'indexation. Cette dernière possibilité diminue certes le nombre de pièces à employer pour le dispositif de réglage de l'orientation angulaire de la couronne 1 proposé, mais présente toutefois une sécurité d'engrenage moindre et fait intervenir des forces de friction pour le réglage (par exemple dans le cas d'une denture oblique sur le membre de couplage 5 conformément à la figure 2A et les moyens de rappel 4 sous forme d'un élément concave, plastiquement déformable et de largeur légèrement inférieure au diamètre maximal de la collerette 55 du membre de couplage, pourvu d'un ou plusieurs crans sur son pourtour ; dans ce cas une pression vers le bas permettrait de désengager les crans mais des frictions seraient présentes au niveau des surfaces de contact entre le membre de couplage 5 et de l'élément élastique concave).According to the preferred embodiment described, the indexing means consist of the collaboration of two teeth set against each other mutually, the first toothing 551 being arranged on the coupling member 5 and the second toothing 91 being arranged on one element. intermediate 9 integral with the cover 11. However, one could imagine that the second toothing 91 is directly arranged on an inner wall of the cover 11, and / or that one of the teeth 551 or 91 is replaced by an elastic indexing element. This latter possibility certainly reduces the number of parts to be used for the device for adjusting the angular orientation of the proposed ring gear 1, but nevertheless has a lower gear safety and involves friction forces for the adjustment (for example in the case of an oblique toothing on the coupling member 5 in accordance with the Figure 2A and the return means 4 in the form of a concave element, plastically deformable and slightly smaller than the maximum diameter of the flange 55 of the coupling member, provided with one or more notches on its periphery; in this case a downward pressure would disengage the notches but friction would be present at the contact surfaces between the coupling member 5 and the concave elastic element).

Selon le mode de réalisation préférentiel illustré à la figure 2B, on peut distinguer une ouverture 56 hexagonale aménagée dans l'extrémité inférieure du membre de couplage 52. Cette ouverture est destinée à coopérer avec l'extrémité inférieure du piston 72, qui prend dans ce cas également une forme hexagonale de taille correspondante. Bien qu'il soit toujours nécessaire de prévoir un orifice et des butées pour le piston 7 au niveau du membre de couplage 5, l'agencement d'une section particulière décrit permet de manipuler aisément la couronne 1 lorsque cette dernière est démontée sur tube 2, comme sur la figure 3 décrite au paragraphe suivant, avec un outil comme une clef traditionnelle à 6 pans. La section de l'outil permet de verrouiller le piston 7 en rotation tandis que l'extrémité inférieure 52 du membre de couplage 5 présente une surface d'appui pour l'outil afin d'exercer une force F2 à l'encontre de la force F1 exercée par les moyens de rappel 4 afin de désolidariser le capot 11 du membre de couplage 5 et effectuer le réglage de l'orientation de la couronne. D'autres sections pour l'ouverture 56, de type par exemple carrée ou triangulaire sont également envisageables pour effectuer cette manipulation, en fonction de l'outil que l'on souhaitera privilégier.According to the preferred embodiment illustrated in Figure 2B a hexagonal opening 56 formed in the lower end of the coupling member 52 can be distinguished. This opening is intended to cooperate with the lower end of the piston 72, which in this case also takes a hexagonal shape of corresponding size. Although it is still necessary to provide an orifice and stops for the piston 7 at the coupling member 5, the arrangement of a particular section described can easily handle the ring 1 when the latter is removed on tube 2 , as on the figure 3 described in paragraph next, with a tool like a traditional hexagonal key. The section of the tool locks the piston 7 in rotation while the lower end 52 of the coupling member 5 has a bearing surface for the tool to exert a force F2 against the force F1 exerted by the return means 4 in order to separate the cover 11 of the coupling member 5 and adjust the orientation of the ring. Other sections for the opening 56, for example square or triangular type are also possible to perform this manipulation, depending on the tool that we wish to privilege.

La figure 3 montre une vue similaire à la figure 1, c'est-à-dire une coupe sagittale, d'une couronne 1 selon un mode de réalisation préférentiel de l'invention avec un membre de couplage 5 conformément à celui représenté à la figure 2B avec une denture 551 dans un plan orthogonal à l'axe de rotation A-A de la couronne 1. La couronne 1 étant démontée, le tube 2 n'est plus visible sur cette figure et le joint 6 n'est ainsi plus comprimé; toutes les autres pièces sont identiques. Contrairement à la figure 1, le ressort 8 du piston 7 peut s'étendre puisqu'il n'y a plus de contrainte axiale ni par l'intermédiaire du filetage 51 pour la position du capot 11 ni par la position indexée de la tige de remontoir sur laquelle est destiné à être monté le piston 7. On peut remarquer toutefois que ce n'est pas la position compressée ou étendue du ressort 8 du piston 7 qui détermine dans quelle position P1 de verrouillage ou P2 de réglage d'orientation la couronne 1 se trouve, cette position étant définie uniquement par la position des moyens de rappel 4, qui sont associés aux moyens d'indexation 551,91 en rotation de la couronne 1 selon l'invention.The figure 3 shows a similar view to the figure 1 , i.e. a sagittal section, of a crown 1 according to a preferred embodiment of the invention with a coupling member 5 in accordance with that shown in FIG. Figure 2B with a toothing 551 in a plane orthogonal to the axis of rotation AA of the crown 1. The ring 1 being disassembled, the tube 2 is no longer visible in this figure and the seal 6 is thus no longer compressed; all other parts are identical. Unlike the figure 1 , the spring 8 of the piston 7 can extend since there is no longer axial stress or through the thread 51 for the position of the cover 11 nor by the indexed position of the winding stem on which is intended However, it should be noted that it is not the compressed or extended position of the spring 8 of the piston 7 which determines in which position P1 of locking or P2 of adjustment of orientation the crown 1 is located, this position being defined solely by the position of the return means 4, which are associated with indexing means 551,91 in rotation of the ring 1 according to the invention.

La figure 3 montre le système en position de réglage P2 car les moyens de rappel sont compressés par application d'une force F2, de sens opposé à la force F1. Le capot 11 et le membre de couplage 5 sont mobiles axialement l'un par rapport à l'autre, et de manière réversible, entre la première position P1 de la figure 1 dans laquelle le capot 11 est solidaire en rotation par rapport au membre de couplage 5, et la deuxième position P2 de la figure 3 dans laquelle le capot 11 est libre de tourner autour de l'axe de rotation A-A de ladite couronne vissée 1, car les dentures 551 de la collerette 55 de l'élément de couplage 5 et respectivement 91 de l'élément intermédiaire 9 ne sont plus en prise mutuelle. Selon un mode de réalisation préférentiel, les moyens de rappel 4 et lesdits moyens d'indexation, ici les dentures 551 et 91, sont déterminés de telle sorte que le passage de la position P1 à la position P2 nécessite l'exercice d'une force F2 à l'encontre des moyens de rappel 4 d'une intensité au moins trois fois supérieure à la force F1 exercée par les moyens de rappel 4 au repos, c'est-à-dire dans la position de verrouillage P1, de telle sorte que toute erreur de manipulation fortuite soit exclue. Dans le cas où la force F1 exercée par les moyens de rappel 4 associés aux moyens d'indexation selon l'invention est de l'ordre de 14 Newton, on pourra par exemple configurer la profondeur des dentures 551 et 91 ainsi que les propriétés plastiques de l'élément utilisé comme moyens de rappel 4 de telle sorte qu'il soit nécessaire d'exercer une force de l'ordre de 50 Newton pour régler l'orientation de la couronne 1. Afin de déterminer la valeur de la force F2 souhaitée il est également possible de jouer sur le paramètre d'orientation des dentures selon un axe oblique par rapport à celui de rotation de la couronne A-A.The figure 3 shows the system in adjustment position P2 because the return means are compressed by applying a force F2 in the opposite direction to the force F1. The cover 11 and the coupling member 5 are axially movable relative to each other, and reversibly, between the first position P1 of the figure 1 in which the cover 11 is integral in rotation with respect to the coupling member 5, and the second position P2 of the figure 3 in which the cover 11 is free to rotate about the axis of rotation AA of said screwed crown 1, because the teeth 551 of the flange 55 of the coupling element 5 and 91 respectively of the intermediate element 9 are no longer in mutual engagement. According to a preferred embodiment, the return means 4 and said indexing means, here the teeth 551 and 91, are determined so that the transition from the position P1 to the position P2 requires the exercise of a force F2 against the return means 4 of an intensity at least three times greater than the force F1 exerted by the return means 4 at rest, that is to say in the locking position P1, so that that any error of fortuitous manipulation is excluded. In the case where the force F1 exerted by the return means 4 associated with the indexing means according to the invention is of the order of 14 Newton, it will be possible for example to configure the depth of the teeth 551 and 91 as well as the plastic properties. of the element used as return means 4 so that it is necessary to exert a force of the order of 50 Newton to adjust the orientation of the ring 1. In order to determine the value of the desired force F2 it is also possible to play on the orientation parameter of the teeth along an axis oblique to that of rotation of the crown AA.

On pourra remarquer que selon le mode de réalisation préférentiel décrit aux figures 1 et 3, il est impossible à l'utilisateur d'effectuer le réglage une fois que la couronne 1 est assemblée au tube 2. En effet, la disposition de la denture 551 de l'élément de couplage 5 vers l'intérieur de la carrure 3 et l'exercice de la force F1 dans la même direction empêche d'une part toute désolidarisation du capot 11 par rapport au membre de couplage 5 lorsque l'utilisateur tire sur le capot 11 pour déplacer la couronne 1 axialement hors de la carrure 3, car le déplacement axial du capot 11 dans cette direction tend alors à plaquer la denture 91 vers celle du membre de couplage 5. D'autre part, presser le capot 11 vers la carrure 3 ne permettrait pas non plus de désolidariser les dentures 551-91 l'une de l'autre: si la couronne 1 ne se trouve pas dans sa position proximale par rapport à la carrure 3, c'est-à-dire la position axiale plus proche possible de la carrure 3, les moyens de rappel 4 peuvent dans ce cas être compressés, mais la force à exercer pour désolidariser les dentures devrait être largement supérieure à celle qui ramène le capot 11 dans sa position proximale par rapport à la carrure, comme discuté précédemment pour la détermination des forces utilisées pour l'indexation axiale des positions de la tige de remontoir. Le capot serait donc d'abord ramené dans sa position proximale, avant que les dentures 551-91 ne puissent être désolidarisées. Or dans cette position, plus aucun mouvement axial n'est possible vers l'intérieur de la carrure 3 mis à part par vissage sur le tube 2, et dès lors les moyens de rappel 4 ne peuvent plus être comprimés pour permettre de désengager les dentures 551-91. De cette façon, toute erreur de manipulation est évitée et l'orientation de la couronne 1 ne pourra être changée que lorsque celle-ci est dévissée du tube 2 et qu'un outil lui est appliqué, comme par exemple une clef à 6 pans sur l'extrémité inférieure 52 du membre de couplage 52, pour exercer la force F2 nécessaire à la désolidarisation du capot 11.It may be noted that according to the preferred embodiment described in Figures 1 and 3 , it is impossible for the user to make the adjustment once the ring 1 is assembled to the tube 2. Indeed, the arrangement of the toothing 551 of the coupling element 5 towards the inside of the caseband 3 and the exercise of the force F1 in the same direction prevents firstly any separation of the cover 11 relative to the coupling member 5 when the user pulls on the cover 11 to move the ring 1 axially out of the middle part 3, because the axial displacement of the cover 11 in this direction then tends to press the toothing 91 towards that of the coupling member 5. On the other hand, pressing the cover 11 towards the middle part 3 would also not allow the teeth 551-91 to be disengaged. one of the other: if the crown 1 is not in its proximal position by relative to the middle part 3, that is to say the axial position as close as possible to the middle part 3, the return means 4 can in this case be compressed, but the force to be exerted to separate the teeth should be much greater than that which brings the cover 11 in its position proximal to the middle part, as discussed above for the determination of the forces used for the axial indexing of the positions of the winding stem. The hood would therefore first be returned to its proximal position, before the teeth 551-91 can be detached. Now in this position, no axial movement is possible towards the inside of middle part 3 except by screwing on tube 2, and therefore the return means 4 can no longer be compressed to disengage the teeth. 551-91. In this way, any handling error is avoided and the orientation of the ring 1 can be changed only when it is unscrewed from the tube 2 and a tool is applied to it, such as a hex key on the lower end 52 of the coupling member 52, to exert the force F2 necessary for the disengagement of the cover 11.

A titre d'alternative, on peut agencer la denture 551 du membre de couplage 5 dans le sens opposé sur sa face supérieure 54, l'autre denture 91 directement sur la surface interne du capot 114 et les moyens de rappel 4 en dessous d'une collerette 55 pour exercer une force F1 cette fois-ci dans une direction axiale non plus vers l'intérieur mais vers l'extérieur de la carrure 3. Le passage de la position P1 en position P2 pourrait ainsi être effectué en tirant le capot 11 hors de la carrure 3 lorsque la couronne 1 est en position vissée sur le tube 2, ou lorsque l'extrémité de la tige de remontoir se trouve en position distale par rapport à la carrure 3, c'est-à-dire la plus éloignée possible axialement par rapport à la carrure 3. En effet dans le premier cas, aucun mouvement axial du membre de couplage 5 n'est possible par rapport au tube 2, et dans le deuxième cas, aucun mouvement axial du membre de couplage 5 n'est possible hors de la carrure 3 en raison de la venue en butée de son extrémité inférieure 52 contre les surfaces de butée du piston 521, tandis qu'un mouvement axial du capot 11 est toujours possible dans les deux cas, ce qui permet de comprimer l'élément élastique et désengager mutuellement les dentures. D'autres variantes avec des dentures obliques avec une pente de gauche à droite ou de droite à gauche selon le sens choisi pour la direction de la force des moyens de rappel 4 sont possibles sans sortir du cadre de l'invention, à partir du moment où le réglage de l'orientation la couronne peut être géré de manière totalement disjointe de l'utilisation normale de la couronne 1 dans le cadre de son interaction avec le mouvement, par exemple pour des opérations de réglage classique de l'heure, du quantième ou de remontage de barillet.As an alternative, it is possible to arrange the toothing 551 of the coupling member 5 in the opposite direction on its upper surface 54, the other set of teeth 91 directly on the internal surface of the cover 114 and the return means 4 below a collar 55 to exert a force F1 this time in an axial direction not inwardly but outwardly of the middle part 3. The passage from the position P1 to the position P2 could thus be carried out by pulling the cover 11 outside the case 3 when the ring 1 is in the screwed position on the tube 2, or when the end of the winding stem is distal to the middle part 3, that is to say the farthest possible axially with respect to the middle part 3. In fact in the first case, no axial movement of the coupling member 5 is possible with respect to the tube 2, and in the second case, no axial movement of the coupling member 5 does not occur. is possible out of the middle 3 because of the coming into stop of its lower end 52 against the abutment surfaces of the piston 521, while axial movement of the cover 11 is always possible in both cases, which allows to compress the elastic element and disengage mutually the teeth. Other variants with oblique teeth with a slope from left to right or from right to left depending on the direction chosen for the direction of the force of the return means 4 are possible without departing from the scope of the invention, from the moment where the adjustment of the orientation the crown can be managed in a totally disjoint manner of the normal use of the crown 1 in the context of its interaction with the movement, for example for operations of conventional adjustment of the time, the date or barrel winding.

En ce qui concerne les moyens de rappel 4, le mode de réalisation décrit à l'aide des figures présente l'avantage de ne requérir qu'un espace restreint entre la surface supérieure 54 du membre de couplage 5 et la surface interne du couvercle 114 dans l'ouverture centrale 115..As regards the return means 4, the embodiment described with the aid of the figures has the advantage of only requiring a restricted space between the upper surface 54 of the coupling member 5 and the inner surface of the cover 114. in the central opening 115 ..

Selon le mode de réalisation de la figure 3, lorsque la couronne 1 se trouve dans l'état P2 de réglage, le couvercle 112 du capot 11 portant le logo L peut être aisément déplacé angulairement dans une position désirée en procédant de la façon suivante. Le capot 11 est maintenu dans la position P2 non solidaire du membre de couplage 5 en imprimant une force F2 sur l'extrémité inférieure 52 du membre de couplage vers l'extérieur de la carrure 3, ou, si la couronne 1 est démontée, vers le couvercle 112. Il peut alors être orienté en le faisant tourner dans une position angulaire désirée, qui sera reproductible grâce aux dentures d'indexation pour un nombre de positions discrètes égales au nombre de dents, qui donne parallèlement une indication sur la finesse du réglage. Une fois la position angulaire désirée atteinte, il suffit de relâcher la pression exercée par l'outil sur l'extrémité inférieure du membre de couplage 52, dont la denture 551 sera alors rappelée vers celle de l'élément intermédiaire 91, afin que le membre de couplage 5 soit à nouveau solidaire en rotation du capot 11 dans la position verrouillée P1.According to the embodiment of the figure 3 when the ring gear 1 is in the setting state P2, the cover 112 of the cover 11 carrying the logo L can be easily moved angularly to a desired position by proceeding as follows. The cover 11 is held in the non-integral position P2 of the coupling member 5 by printing a force F2 on the lower end 52 of the coupling member towards the outside of the caseband 3, or, if the ring 1 is disassembled, to 112. It can then be oriented by rotating it in a desired angular position, which will be reproducible thanks to the indexing teeth for a number of discrete positions equal to the number of teeth, which gives an indication at the same time of the fineness of the adjustment. . Once the desired angular position has been reached, it suffices to release the pressure exerted by the tool on the lower end of the coupling member 52, whose teeth 551 will then be biased towards that of the intermediate element 91, so that the limb coupling 5 is again secured in rotation of the cover 11 in the locked position P1.

On notera que l'utilisation d'un capot rapporté sur le membre de couplage 5 permet au fabricant de couronnes d'avoir un stock d'éléments de couplage 5 et d'utiliser ces éléments avec des capots 11 portant des motifs différents ou d'autres éléments tels que des pierres précieuses ou analogues, ou ayant des formes extérieures non cylindriques par exemple carrée, ovale ou tout autre forme géométrique particulière.Note that the use of a cover attached to the coupling member 5 allows the manufacturer of crowns to have a stock of coupling elements 5 and use these elements with covers 11 having different patterns or other elements such as precious stones or the like, or having external non-cylindrical shapes, for example square, oval or any other particular geometrical shape.

Bien que l'invention revendiquée ait été décrite principalement en relation avec l'exemple non limitatif d'une couronne, on comprendra que l'élément vissé 1 pourra également consister par exemple en une soupape, manuelle ou automatique, ainsi qu'un poussoir, un correcteur ou encore un fond orientable. Ces exemples ne font pas partie de l'invention revendiquée.Although the claimed invention has been described mainly in connection with the nonlimiting example of a ring, it will be understood that the screwed element 1 may also consist for example of a valve, manual or automatic, and a pusher, a corrector or an orientable background. These examples are not part of the claimed invention.

Claims (9)

  1. Orientable screwdown crown (1) comprising a cover (11) and a device for adjusting the angular orientation of said cover (11) in relation to a middle part (3) of a watch, said angular orientation adjustment device comprising a coupling member (5) and indexing means (551-91) between said cover (11) and said coupling member (5), and return means (4), said cover (11) and said coupling member (5) being axially movable relative to one another between a first position (P1), in which said cover (11) is integral in rotation with said coupling member (5), and a second position (P2), in which the cover (11) is free to rotate about the axis of rotation (A-A) of said orientable screwdown crown (1), said return means (4) tending to make said cover (11) and said coupling member (5) integral in rotation in said first position (P1), and said indexing means (551, 91) comprising a first toothing (551) arranged on said coupling member (5), said first toothing (551) cooperating with a second toothing (91) arranged on an intermediate element (9) integral with the cover (11), said return means (4) being arranged to press said toothings (551, 91) one against the other.
  2. Screwdown crown according to the preceding claim, said return means (4) exerting an axial force (F1) along the axis of rotation (A-A) of said screwdown crown (1) and oriented towards the inside of said middle part (3).
  3. Screwdown crown according to any of the preceding claims, said toothings (551, 91) being arranged in a plane perpendicular to the axis of rotation (A-A) of said screwdown crown (1).
  4. Screwdown crown according to any of the preceding claims, the coupling member (5) comprising a collar (55) and said first toothing (551) being arranged on a lower face of said collar (55).
  5. Screwdown crown according to any of the preceding claims, said cover (11) being formed of a covering cap (111) and a lateral skirt (112) defining a central opening (115) to accommodate said coupling member (5), and said return means (4) being an elastic element arranged between a lower surface (114) of said covering cap (111) and an upper surface (54) of said coupling member (5).
  6. Screwdown crown according to any of the preceding claims, said coupling member (5) comprising an axial cavity (53) to accommodate a piston (7), and a lower end (52) comprising stops (521) for limiting the travel of said piston (7).
  7. Screwdown crown according to claim 6, said coupling member (5) comprising a hexagonal lower opening (56) and said piston (7) comprising a corresponding hexagonal lower end (72).
  8. Screwdown crown according to any of the preceding claims, said screwdown crown (1) being connected to a winding stem and said return means (4) exerting a force (F1) whose intensity is greater than that required during manipulation of the winding stem.
  9. Screwdown crown according to any of the preceding claims, characterized in that the cover (11) and the coupling member (5) are axially movable in relation to one another between a first position (P1), in which the cover (11) is integral in rotation with the coupling member (5), and a second position (P2), in which the cover (11) is free to rotate about the axis of rotation (A-A) of said screwdown crown (1), said return means (4) and said indexing means (551, 91) being determined such that the change from position (P1) to position (P2) requires a force (F2) to be exerted against the return means with an intensity at least three times higher than the force (F1) exerted by the return means (4) at rest.
EP12725773.1A 2011-06-08 2012-06-05 Device for positioning a threaded crown of a timepiece Active EP2718770B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12725773.1A EP2718770B1 (en) 2011-06-08 2012-06-05 Device for positioning a threaded crown of a timepiece

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11169052 2011-06-08
EP12725773.1A EP2718770B1 (en) 2011-06-08 2012-06-05 Device for positioning a threaded crown of a timepiece
PCT/EP2012/060602 WO2012168243A1 (en) 2011-06-08 2012-06-05 Device for orientating a screwed element of a timepiece

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EP2718770A1 EP2718770A1 (en) 2014-04-16
EP2718770B1 true EP2718770B1 (en) 2017-01-11

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US (1) US9110444B2 (en)
EP (1) EP2718770B1 (en)
JP (1) JP5746428B2 (en)
KR (1) KR101536879B1 (en)
CN (1) CN103597412B (en)
CH (1) CH705090A2 (en)
RU (1) RU2596102C2 (en)
WO (1) WO2012168243A1 (en)

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Also Published As

Publication number Publication date
HK1193168A1 (en) 2014-09-12
CN103597412A (en) 2014-02-19
JP2014519041A (en) 2014-08-07
KR20140035483A (en) 2014-03-21
CH705090A2 (en) 2012-12-14
RU2013157146A (en) 2015-07-20
KR101536879B1 (en) 2015-07-14
CN103597412B (en) 2016-02-03
RU2596102C2 (en) 2016-08-27
JP5746428B2 (en) 2015-07-08
EP2718770A1 (en) 2014-04-16
US9110444B2 (en) 2015-08-18
US20140071797A1 (en) 2014-03-13
WO2012168243A1 (en) 2012-12-13

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