EP3473126B1 - Fixing device for a bracelet - Google Patents

Fixing device for a bracelet Download PDF

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Publication number
EP3473126B1
EP3473126B1 EP17197367.0A EP17197367A EP3473126B1 EP 3473126 B1 EP3473126 B1 EP 3473126B1 EP 17197367 A EP17197367 A EP 17197367A EP 3473126 B1 EP3473126 B1 EP 3473126B1
Authority
EP
European Patent Office
Prior art keywords
bar
shaft
insert
attachment device
housing
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
EP17197367.0A
Other languages
German (de)
French (fr)
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EP3473126A1 (en
Inventor
Orane Romano
Fabrice Rochat
Alain Zaugg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Montres Breguet SA
Original Assignee
Montres Breguet SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Montres Breguet SA filed Critical Montres Breguet SA
Priority to EP17197367.0A priority Critical patent/EP3473126B1/en
Priority to US16/141,343 priority patent/US11022943B2/en
Priority to JP2018194073A priority patent/JP6688362B2/en
Priority to CN201811212304.9A priority patent/CN109674154B/en
Publication of EP3473126A1 publication Critical patent/EP3473126A1/en
Application granted granted Critical
Publication of EP3473126B1 publication Critical patent/EP3473126B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G04B37/00—Cases
    • G04B37/14—Suspending devices, supports or stands for time-pieces insofar as they form part of the case
    • G04B37/1486—Arrangements for fixing to a bracelet
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/14—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps characterised by the way of fastening to a wrist-watch or the like
    • 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
    • G04B37/14—Suspending devices, supports or stands for time-pieces insofar as they form part of the case
    • G04B37/1486—Arrangements for fixing to a bracelet
    • G04B37/1493—Arrangements for fixing to a bracelet by means of a feather spring (Barette á ressort)

Definitions

  • the present invention relates to the field of watchmaking or jewelry. It relates more precisely to a device for attaching a bracelet to an object, in particular a watch case.
  • the straps in leather or in metal, are fixed to the horns of a watch case, by means of a bar formed of a tube, in which are mounted two pistons movable in translation, and an elastic member. disposed between said pistons and tending to drive them out of the tube.
  • Said bar is mounted in a housing provided for this purpose at one end of the bracelet, and the pistons are engaged in blind bores made opposite in the horns of the box.
  • Such devices usually include a bar, of the type described above, on which is mounted, passing through the tube, a piston actuating member.
  • Said actuating member is, for example, a radial finger integral with a pistons, as described in the patent CH 327 838 .
  • the finger is slidably mounted through an axial slot made in the tube, and its movement along the slot makes it possible to push one of the pistons inside the tube.
  • the patent CH 614 589 describes a watch case with a device for attaching a bracelet to the box, the central horn has a cylindrical passage split longitudinally over the entire length of the horn, allowing the introduction of a bar for fixing a bracelet .
  • the bar is in the form of a cylinder with a flat over its entire length so as to let the bar pass during its introduction into the passage and hold it in place when it occupies a determined angular position.
  • the fastening devices thus described are generally used for interchangeable straps, which they can replace at the option of the wearer. However, they are not without drawbacks. It will be noted, in particular, that they require major structural modifications at the level of the bar, such as, for example, the creation of an opening at the level of the tube, or the transformation of the pistons. These changes result in significant additional manufacturing costs.
  • These fixing devices also include a prominent element, namely the actuating member, which can catch on or injure the wearer of the watch.
  • the present invention overcomes these drawbacks, by proposing a device for attaching a bracelet to a watch case, the device comprising on the one hand a bar formed by at least one telescopic cylindrical rod secured to the watch case by means of at least one horn, and on the other hand an insert secured to the end of a bracelet, the bar and the insert being complementary to cooperate by fitting one into the other by constituting means removable assembly capable of making the bracelet interchangeable.
  • the bar has at least one flat, said flat being arranged to cooperate by interlocking with at least one housing produced in said at least one insert, said at least one housing having a substantially rectangular opening for receiving said at least one flat, said rod being telescopic so as to pass from a first position A in which the rod is deployed and the insert is capable of being positioned on the rod of the rod, towards a second position B in which the bar is retracted and said insert is locked on the rod of the bar.
  • the figures 1 to 4 illustrate a wristwatch as well as detailed views of the device for attaching the strap 2 to the watch case 1 according to a preferred embodiment of the invention.
  • the device for fixing the strap 2 to the watch case 1 comprises on the one hand a bar 4 secured to the watch case by means of at least one horn secured to the case, and on the other hand an insert secured to the end of the strap 2, the bar 4 and the insert 20 being complementary in order to cooperate by fitting one into the other by constituting removable assembly means capable of making the bracelet interchangeable.
  • the watch case comprises a central horn comprising a passage 30 whose diameter corresponds to the diameter of the axis of the bar 4 so that the latter can rotate freely in the housing.
  • the central horn 10 is formed in one piece and can be provided removable and be maintained on the watch case 1, by means of screws for example. Such an arrangement makes it possible to assemble and disassemble the horn easily and quickly.
  • the horn is formed with the watch case.
  • the bar 4 is formed by at least one cylindrical rod 40 having at least one flat 41, the flat 41 being arranged to cooperate by interlocking with at least one housing 200 produced in the insert 20 of the bracelet strand 2 or a link.
  • the bar 4 is formed by two rods 40, each comprising two parallel and symmetrical flats 41, and the two rods 40 being separated by a spring 5 pushing them back from each other, the rods 40 extending to be returned to the deployed position by the spring 5 disposed in the housing 30 of the horn 3 as long as the rods are not locked.
  • the rod 40 is provided telescopically so as to pass from a first position A in which the rod is deployed and the insert 20 is able to be positioned on the rod 40, towards a second position B in which the rod is retracted and the insert is locked on the rod 40 of the bar.
  • the rod 40 comprises at least one guide track 42 having an L-shaped, or bayonet-shaped, and extending over a part of its length, the track 42 comprising at least one notch 43, on the base of the L , so as to define the retracted position of the rod 40.
  • the rod 40 comprises at least one manipulation member at its free end so as to rotate it from the first position A in which the flat portion 41 of the rod is capable of receiving the insert, towards the second position B in which the insert 2 is locked on the bar 4.
  • the handling member comprises a collar 44 secured to each of the ends of the rod 40, the rod 40 and the collar 44 then forming a single element. It can also be envisaged to assemble the collar 44 at the end of the rod 40 by means of an insertion point mounted in a hollow part of the rod 40. An internal bulge is then arranged at the end of the rod 40 to cooperate with the insertion point, in order to clip the flange 44 into the rod 40. Other methods of fixing the flanges 44 can be envisaged, such as for example by gluing, welding, or even by driving. These act as axial retaining elements for the bar 4 and the insert 21.
  • the horn 3 comprises guide and locking means arranged to slide in the track 42 and guide the rod 40 during a change of position.
  • These guide means in particular visible on the Figures 2a and 2b , comprise at least one needle 31 constrained by means of a spring 32 so as to limit the clearances and ensure good contact of the needle in the track 42 of the rod 40.
  • the needle 31 also makes it possible to lock the rod in the retracted position, the latter cooperating with the notch 43, on the base of the L, so as to maintain the rod 40 in the retracted position.
  • the insert 2 comprises a housing 200 having a substantially rectangular opening 210 for receiving the flat 41 of the rod 40, the height and the length of the opening 210 corresponding to the height and the length of the flat 41 of the bar 4
  • the housing 200 is produced in the insert 20 of the bracelet strand.
  • the housing 200 is in the form of an open housing formed by a cylindrical groove machined in the insert 20 of the bracelet strand.
  • This cylindrical groove comprises a rectangular opening 210 allowing the introduction and the maintenance of the rod 40 of cylindrical shape which comprises at least one flat 41 to correspond to the shape of the housing.
  • the groove 211 has a C-shaped section.
  • the horn 3 comprises first vertical side walls 10 in which a cylindrical excavation 11 is provided to partially accommodate the flanges 44.
  • the flanges 44 here taking a preferably cylindrical shape to accommodate in the excavations 11.
  • the user performs the reverse operations, that is to say exerting pressure on the rod or rods until the needle 31 abuts on the wall of the guide groove 42, then rotates the rod around the axis AA by means of the flanges towards position B, and releases the pressure exerted so that the needle comes to lodge in the locking notch 43 under the effect of the spring 5.
  • the bracelet strand can no longer be dislodged as can be observed on the figure 2b .
  • At least one of the flanges 44 comprises a slot arranged on its external face, namely the face visible by the wearer of the watch, for cooperating with a tool or the wearer's finger in order to facilitate the handling of the flange 44 and the locking and / or unlocking of the insert 20 on the bar 4.
  • the insert 20 follows the shape of the central horn 10 so as to limit the play during assembly and provide a good quality assembly.
  • the insert is placed on a bracelet made of leather, synthetic fabric, plastic, metal, ceramic or even composite.
  • the bar 4 is preferably made of metal but could also be made of plastic, ceramic or even composite.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Adornments (AREA)
  • Buckles (AREA)

Description

Domaine de l'inventionField of the invention

La présente invention se rapporte au domaine de l'horlogerie ou de la bijouterie. Elle concerne plus précisément un dispositif de fixation d'un bracelet à un objet, notamment une boîte de montre.The present invention relates to the field of watchmaking or jewelry. It relates more precisely to a device for attaching a bracelet to an object, in particular a watch case.

Arrière-plan de l'inventionInvention background

Généralement, les bracelets, en cuir ou en métal, sont fixés aux cornes d'une boîte de montre, par l'intermédiaire d'une barrette formée d'un tube, dans lequel sont montés deux pistons mobiles en translation, et un organe élastique disposé entre lesdits pistons et tendant à les chasser vers l'extérieur du tube. Ladite barrette est montée dans un logement prévu à cet effet à une extrémité du bracelet, et les pistons sont engagés dans des alésages borgnes réalisés en vis-à-vis dans les cornes de la boîte.Generally, the straps, in leather or in metal, are fixed to the horns of a watch case, by means of a bar formed of a tube, in which are mounted two pistons movable in translation, and an elastic member. disposed between said pistons and tending to drive them out of the tube. Said bar is mounted in a housing provided for this purpose at one end of the bracelet, and the pistons are engaged in blind bores made opposite in the horns of the box.

Pour désolidariser un bracelet ainsi fixé à une boîte, il faut disposer d'un outil conçu pour repousser les pistons dans le tube, à l'encontre de la contrainte exercée par l'organe élastique, et les extraire ainsi des alésages. Le porteur de la montre n'est pas en permanence muni d'un tel outil, et de plus, son utilisation peut s'avérer incommode. C'est pourquoi les bracelets munis d'un tel dispositif de fixation sont généralement attachés de manière permanente à la boîte.To separate a bracelet thus attached to a box, it is necessary to have a tool designed to push the pistons back into the tube, against the stress exerted by the elastic member, and thus extract them from the bores. The wearer of the watch is not permanently provided with such a tool, and moreover, its use can prove to be inconvenient. This is why the straps provided with such a fixing device are generally permanently attached to the case.

Il existe par ailleurs des dispositifs de fixation permettant de désolidariser le bracelet de la boîte sans recourir à un outil. De tels dispositifs comportent habituellement une barrette, du type décrit précédemment, sur laquelle est monté, traversant le tube, un organe d'actionnement des pistons. Ledit organe d'actionnement est, par exemple, un doigt radial solidaire d'un des pistons, tel que décrit dans le brevet CH 327 838 . Le doigt est monté coulissant à travers une fente axiale pratiquée dans le tube, et son déplacement le long de la fente permet de repousser l'un des pistons à l'intérieur du tube.There are also fixing devices to separate the bracelet from the box without using a tool. Such devices usually include a bar, of the type described above, on which is mounted, passing through the tube, a piston actuating member. Said actuating member is, for example, a radial finger integral with a pistons, as described in the patent CH 327 838 . The finger is slidably mounted through an axial slot made in the tube, and its movement along the slot makes it possible to push one of the pistons inside the tube.

Le brevet CH 614 589 décrit une boîte de montre avec un dispositif de fixation d'un bracelet à la boîte, la corne centrale présente un passage cylindrique fendu longitudinalement sur toute la longueur de la corne, permettant l'introduction d'une barrette pour la fixation d'un bracelet. La barrette se présente sous la forme d'un cylindre avec un méplat sur toute sa longueur de manière à laisser passer la barrette lors de son introduction dans le passage et la maintenir en place lorsque celle-ci occupe une position angulaire déterminée.The patent CH 614 589 describes a watch case with a device for attaching a bracelet to the box, the central horn has a cylindrical passage split longitudinally over the entire length of the horn, allowing the introduction of a bar for fixing a bracelet . The bar is in the form of a cylinder with a flat over its entire length so as to let the bar pass during its introduction into the passage and hold it in place when it occupies a determined angular position.

On connait également du document EP 2 540 188 un dispositif de fixation d'un bracelet à la boîte. Le document JP2014161402 décrit le préambule de la revendication 1 et un méplat sur un membre cylindrique de renforcement monté autour de la barrette.We also know of the document EP 2,540,188 a device for attaching a bracelet to the box. The document JP2014161402 describes the preamble of claim 1 and a flat on a cylindrical reinforcing member mounted around the bar.

Les dispositifs de fixations ainsi décrits sont généralement employés pour des bracelets interchangeables, qu'ils permettent de remplacer au gré du porteur. Ils ne sont toutefois pas exempts d'inconvénients. On notera, en particulier, qu'ils nécessitent des modifications structurelles majeures au niveau de la barrette, telles que, par exemple, la réalisation d'une ouverture au niveau du tube, ou la transformation des pistons. Ces changements entraînent des surcoûts de fabrication importants. Ces dispositifs de fixation comportent, par ailleurs, un élément proéminent, à savoir l'organe d'actionnement, qui peut s'accrocher ou blesser le porteur de la montre.The fastening devices thus described are generally used for interchangeable straps, which they can replace at the option of the wearer. However, they are not without drawbacks. It will be noted, in particular, that they require major structural modifications at the level of the bar, such as, for example, the creation of an opening at the level of the tube, or the transformation of the pistons. These changes result in significant additional manufacturing costs. These fixing devices also include a prominent element, namely the actuating member, which can catch on or injure the wearer of the watch.

Résumé de l'inventionSummary of the invention

La présente invention permet de pallier ces inconvénients, en proposant un dispositif de fixation d'un bracelet à une boîte de montre, le dispositif comprenant d'une part une barrette formée par au moins une tige cylindrique télescopique solidaire de la boîte de montre par le biais d'au moins une corne, et d'autre part un insert solidaire de l'extrémité d'un bracelet, la barrette et l'insert étant complémentaires pour coopérer par emboîtement l'un dans l'autre en constituant des moyens d'assemblage amovibles aptes à rendre le bracelet interchangeable.The present invention overcomes these drawbacks, by proposing a device for attaching a bracelet to a watch case, the device comprising on the one hand a bar formed by at least one telescopic cylindrical rod secured to the watch case by means of at least one horn, and on the other hand an insert secured to the end of a bracelet, the bar and the insert being complementary to cooperate by fitting one into the other by constituting means removable assembly capable of making the bracelet interchangeable.

Selon l'invention, la barrette présente au moins un méplat, ledit méplat étant agencé pour coopérer par emboitement avec au moins un logement réalisé dans ledit au moins un insert, ledit au moins un logement présentant une ouverture sensiblement rectangulaire pour recevoir ledit au moins un méplat, ladite tige étant télescopique de manière à passer d'une première position A dans laquelle la tige est déployée et l'insert est apte à être positionné sur la tige de la tige, vers une deuxième position B dans laquelle la barrette est rétractée et ledit insert est verrouillé sur la tige de la barrette.According to the invention, the bar has at least one flat, said flat being arranged to cooperate by interlocking with at least one housing produced in said at least one insert, said at least one housing having a substantially rectangular opening for receiving said at least one flat, said rod being telescopic so as to pass from a first position A in which the rod is deployed and the insert is capable of being positioned on the rod of the rod, towards a second position B in which the bar is retracted and said insert is locked on the rod of the bar.

Conformément à d'autres variantes avantageuses de l'invention :

  • la barrette comprend au moins une piste de guidage s'étendant sur tout ou partie de sa longueur ;
  • ladite au moins une piste comprend au moins une encoche, ladite encoche étant configurée pour définir la position B, dite position rétractée ;
  • la corne comprend des moyens de guidage agencés pour glisser dans ladite au moins une piste ;
  • les moyens de guidage comprennent un pointeau agencé pour coopérer avec ladite piste de guidage ;
  • ladite piste de guidage est en forme de L, la base du L recevant ladite encoche de verrouillage définissant la position B, ou position verrouillée, de la tige ;
  • la tige comprend au moins une collerette à au moins une extrémité, ladite au moins une collerette formant un élément de retenue axiale ;
  • ladite au moins une collerette coopèrent avec au moins une surface de butée latérale de la boite de montre ;
  • la boite de montre comprend une corne médiane comprenant un passage dont le diamètre correspond au diamètre de l'axe de la barrette ;
  • la barrette comprend deux tiges comprend chacune deux méplats, parallèles et symétriques, agencés pour coopérer avec ledit logement dudit insert ;
  • ledit logement se présente sous la forme d'une rainure avec ouverture, le logement présentant une section en forme de C.
In accordance with other advantageous variants of the invention:
  • the bar comprises at least one guide track extending over all or part of its length;
  • said at least one track comprises at least one notch, said notch being configured to define position B, called retracted position;
  • the horn comprises guide means arranged to slide in said at least one track;
  • the guide means comprise a needle arranged to cooperate with said guide track;
  • said guide track is L-shaped, the base of the L receiving said locking notch defining position B, or locked position, of the rod;
  • the rod comprises at least one collar at at least one end, said at least one collar forming an axial retaining element;
  • said at least one collar cooperate with at least one lateral abutment surface of the watch case;
  • the watch case comprises a central horn comprising a passage whose diameter corresponds to the diameter of the axis of the bar;
  • the bar comprises two rods each comprising two flats, parallel and symmetrical, arranged to cooperate with said housing of said insert;
  • said housing is in the form of a groove with opening, the housing having a C-shaped section.

Description sommaire des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de la présente invention ressortiront plus clairement de la description détaillée qui suit d'un exemple de réalisation d'un dispositif de fixation d'un bracelet selon l'invention, cet exemple étant donné à titre purement illustratif et non limitatif seulement, en liaison avec le dessin annexé sur lequel :

  • la figure 1 illustre une vue éclatée en perspective d'une boîte de montre équipée d'un dispositif de fixation selon l'invention ;
  • les figures 2a et 2b représentent respectivement une vue en coupe transversale de la boite de montre avec le dispositif en position déployée et en position rétractée ;
  • les figure 3a et 3b illustrent une barrette d'un dispositif de fixation conforme à l'invention, et
  • la figure 4 illustre une vue en coupe selon la ligne A-A de la figure 2a.
Other characteristics and advantages of the present invention will emerge more clearly from the detailed description which follows of an exemplary embodiment of a device for fixing a bracelet according to the invention, this example being given purely by way of illustration and not restrictive only, in conjunction with the appended drawing in which:
  • the figure 1 illustrates an exploded perspective view of a watch case equipped with a fixing device according to the invention;
  • the Figures 2a and 2b respectively represent a cross-sectional view of the watch case with the device in the deployed position and in the retracted position;
  • the figure 3a and 3b illustrate a bar of a fixing device according to the invention, and
  • the figure 4 illustrates a sectional view along line AA of the figure 2a .

Description détaillée des modes de réalisation préférésDetailed description of preferred embodiments

Les figures 1 à 4 illustrent une montre bracelet ainsi que des vues détaillée du dispositif d'attache du bracelet 2 à la boîte de montre 1 selon un mode de réalisation préférentiel de l'invention. Le dispositif de fixation du bracelet 2 à la boîte de montre 1 comprend d'une part une barrette 4 solidaire de la boîte de montre par le biais d'au moins une corne solidaire de la boîte, et d'autre part un insert solidaire de l'extrémité du bracelet 2, la barrette 4 et l'insert 20 étant complémentaires pour coopérer par emboîtement l'un dans l'autre en constituant des moyens d'assemblage amovibles aptes à rendre le bracelet interchangeable.The figures 1 to 4 illustrate a wristwatch as well as detailed views of the device for attaching the strap 2 to the watch case 1 according to a preferred embodiment of the invention. The device for fixing the strap 2 to the watch case 1 comprises on the one hand a bar 4 secured to the watch case by means of at least one horn secured to the case, and on the other hand an insert secured to the end of the strap 2, the bar 4 and the insert 20 being complementary in order to cooperate by fitting one into the other by constituting removable assembly means capable of making the bracelet interchangeable.

Comme on peut l'observer aux figure 1c et 1d, la boite de montre comprend une corne médiane comprenant un passage 30 dont le diamètre correspond au diamètre de l'axe de la barrette 4 de manière que celle-ci puisse tourner librement dans le logement. La corne médiane 10 est formée d'une seule pièce et peut être prévu amovible et être maintenue sur la boîte de montre 1, au moyen de vis par exemple. Un tel agencement permet de monter et démonter la corne facilement et rapidement. On pourrait également imaginer que la corne soit formée avec la boîte de montre.As can be seen in figure 1c and 1d , the watch case comprises a central horn comprising a passage 30 whose diameter corresponds to the diameter of the axis of the bar 4 so that the latter can rotate freely in the housing. The central horn 10 is formed in one piece and can be provided removable and be maintained on the watch case 1, by means of screws for example. Such an arrangement makes it possible to assemble and disassemble the horn easily and quickly. One could also imagine that the horn is formed with the watch case.

Selon l'invention, la barrette 4 est formée par au moins une tige cylindrique 40 présentant au moins un méplat 41, le méplat 41 étant agencé pour coopérer par emboitement avec au moins un logement 200 réalisé dans l'insert 20 du brin de bracelet 2 ou d'un maillon. Telle que représentées sur les figures la barrette 4 est formées par deux tiges 40, chacune comprenant deux méplats 41 parallèles et symétriques, et les deux tiges 40 étant séparées par un ressort 5 les repoussant l'une de l'autre, les tiges 40 tendant à être ramenée en position déployée par le ressort 5 disposé dans le logement 30 de la corne 3 tant que les tiges ne sont pas verrouillée.According to the invention, the bar 4 is formed by at least one cylindrical rod 40 having at least one flat 41, the flat 41 being arranged to cooperate by interlocking with at least one housing 200 produced in the insert 20 of the bracelet strand 2 or a link. As shown in the figures, the bar 4 is formed by two rods 40, each comprising two parallel and symmetrical flats 41, and the two rods 40 being separated by a spring 5 pushing them back from each other, the rods 40 extending to be returned to the deployed position by the spring 5 disposed in the housing 30 of the horn 3 as long as the rods are not locked.

L'homme du métier pourrait imaginer une tige unique formant la barrette 4, et n'aurait pas de difficultés particulières à adapter ce dispositif à une boîte de montre comprenant une paire de cornes classiques.Those skilled in the art could imagine a single rod forming the bar 4, and would have no particular difficulty in adapting this device to a watch case comprising a pair of conventional horns.

De manière avantageuse, la tige 40 est prévue télescopique de manière à passer d'une première position A dans laquelle la tige est déployée et l'insert 20 est apte à être positionné sur la tige 40, vers une deuxième position B dans laquelle la tige est rétractée et l'insert est verrouillé sur la tige 40 de la barrette.Advantageously, the rod 40 is provided telescopically so as to pass from a first position A in which the rod is deployed and the insert 20 is able to be positioned on the rod 40, towards a second position B in which the rod is retracted and the insert is locked on the rod 40 of the bar.

Telle qu'illustrées aux figures 3a et 3b, la tige 40 comprend au moins une piste 42 de guidage présentant une forme en L, ou en forme de baïonnette, et s'étendant sur une partie de sa longueur, la piste 42 comprenant au moins une encoche 43, sur la base du L, de manière à définir la position rétractée de la tige 40.As illustrated in Figures 3a and 3b , the rod 40 comprises at least one guide track 42 having an L-shaped, or bayonet-shaped, and extending over a part of its length, the track 42 comprising at least one notch 43, on the base of the L , so as to define the retracted position of the rod 40.

De plus, la tige 40 comprend au moins un organe de manipulation à son extrémité libre de manière à la faire pivoter de la première position A dans laquelle le méplat 41 de la tige est apte à recevoir l'insert, vers la deuxième position B dans laquelle l'insert 2 est verrouillé sur la barrette 4.In addition, the rod 40 comprises at least one manipulation member at its free end so as to rotate it from the first position A in which the flat portion 41 of the rod is capable of receiving the insert, towards the second position B in which the insert 2 is locked on the bar 4.

Tel qu'illustré, l'organe de manipulation comprend une collerette 44 solidaire de chacune des extrémités de la tige 40, la tige 40 et la collerette 44 formant alors un élément unique. Il peut aussi être envisagé d'assembler la collerette 44 à l'extrémité de la tige 40 par l'intermédiaire d'une pointe d'insertion montée dans une partie creuse de la tige 40. Un renflement interne est alors aménagé à l'extrémité de la tige 40 pour coopérer avec la pointe d'insertion, afin de clipper la collerette 44 dans la tige 40. D'autres modes de fixation des collerettes 44 peuvent être envisagés, comme par exemple par collage, soudage, ou encore par chassage. Ces dernières font office d'éléments de retenue axiaux pour la barrette 4 et l'insert 21.As illustrated, the handling member comprises a collar 44 secured to each of the ends of the rod 40, the rod 40 and the collar 44 then forming a single element. It can also be envisaged to assemble the collar 44 at the end of the rod 40 by means of an insertion point mounted in a hollow part of the rod 40. An internal bulge is then arranged at the end of the rod 40 to cooperate with the insertion point, in order to clip the flange 44 into the rod 40. Other methods of fixing the flanges 44 can be envisaged, such as for example by gluing, welding, or even by driving. These act as axial retaining elements for the bar 4 and the insert 21.

Selon l'invention, la corne 3 comprend des moyens de guidage et de verrouillage agencés pour glisser dans la piste 42 et guider la tige 40 lors d'un changement de position. Ces moyens de guidage, notamment visibles sur les figures 2a et 2b, comprennent au moins un pointeau 31 contraint au moyen d'un ressort 32 de manière à limiter les jeux et assurer un bon contact du pointeau dans la piste 42 de la tige 40. Le pointeau 31 permet également de verrouiller la tige en position rétractée, ce dernier coopérant avec l'encoche 43, sur la base du L, de manière à maintenir la tige 40 en position rétractée.According to the invention, the horn 3 comprises guide and locking means arranged to slide in the track 42 and guide the rod 40 during a change of position. These guide means, in particular visible on the Figures 2a and 2b , comprise at least one needle 31 constrained by means of a spring 32 so as to limit the clearances and ensure good contact of the needle in the track 42 of the rod 40. The needle 31 also makes it possible to lock the rod in the retracted position, the latter cooperating with the notch 43, on the base of the L, so as to maintain the rod 40 in the retracted position.

Encore un autre avantage d'un tel dispositif, est que le pointeau 31 permet de maintenir la tige 40 sur la corne 3, la tige ne pouvant être délogée tant que le pointeau 31 est en place. Ainsi, il n'y a pas de risque de perdre la tige 40 ou le ressort 5 lors d'un changement de bracelet. Bien évidemment, l'homme du métier du métier pour imaginer tout autre type de moyen de guidage, comme un pion ou un tenon faisant saillie par exemple.Yet another advantage of such a device is that the needle 31 keeps the rod 40 on the horn 3, the rod can not be dislodged as the needle 31 is in place. Thus, there is no risk of losing the rod 40 or the spring 5 when changing the strap. Obviously, those skilled in the art to imagine any other type of guide means, such as a pin or a protruding tenon for example.

Comme on peut l'observer aux figures 2a, 2b et 4, l'insert 2 comprend un logement 200 présentant une ouverture 210 sensiblement rectangulaire pour recevoir le méplat 41 de la tige 40, la hauteur et la longueur de l'ouverture 210 correspondant à la hauteur et à la longueur des méplats 41 de la barrette 4. Le logement 200 est réalisé dans l'insert 20 du brin de bracelet. Le logement 200 se présente sous la forme d'un logement ouvert formé par une rainure cylindrique usinée dans l'insert 20 du brin de bracelet. Cette rainure cylindrique comprend une ouverture rectangulaire 210 permettant l'introduction et le maintien de la tige 40 de forme cylindrique qui comprend au moins un méplat 41 pour correspondre à la forme du logement. On peut ainsi observer sur la vue en coupe de la figure 4 que la rainure 211 présente une section en forme de C.As can be seen in Figures 2a, 2b and 4 , the insert 2 comprises a housing 200 having a substantially rectangular opening 210 for receiving the flat 41 of the rod 40, the height and the length of the opening 210 corresponding to the height and the length of the flat 41 of the bar 4 The housing 200 is produced in the insert 20 of the bracelet strand. The housing 200 is in the form of an open housing formed by a cylindrical groove machined in the insert 20 of the bracelet strand. This cylindrical groove comprises a rectangular opening 210 allowing the introduction and the maintenance of the rod 40 of cylindrical shape which comprises at least one flat 41 to correspond to the shape of the housing. We can thus observe on the sectional view of the figure 4 that the groove 211 has a C-shaped section.

Selon le mode de réalisation préférentiel illustré à la figure 1, la corne 3 comprend des premières parois latérales 10 verticales dans lesquelles est prévue une excavation cylindrique 11 pour y loger partiellement les collerettes 44. Les collerettes 44 prenant ici une forme de préférence cylindrique pour loger dans les excavations 11.According to the preferred embodiment illustrated in figure 1 , the horn 3 comprises first vertical side walls 10 in which a cylindrical excavation 11 is provided to partially accommodate the flanges 44. The flanges 44 here taking a preferably cylindrical shape to accommodate in the excavations 11.

Pour fixer le bracelet 2 au boîtier 1 comme illustré aux figures 2a et 2b, on exerce une pression sur la ou les tiges 40 jusqu'à ce que le pointeau 31 vienne en butée contre la paroi de la piste de guidage 42, puis on fait pivoter la ou les tiges selon un angle défini par la piste de guidage, ici défini par la longueur de la base du L formé par la piste, et on relâche la pression exercée sur la ou les tiges pour que le ressort 5 repousse la ou les tiges 40 qui passeront alors en position déployée. Une telle cinématique est visible à la figure 3a.To attach bracelet 2 to case 1 as illustrated in Figures 2a and 2b pressure is exerted on the rod or rods 40 until the needle 31 abuts against the wall of the guide track 42, then the rod or rods are pivoted at an angle defined by the guide track, here defined by the length of the base of the L formed by the track, and the pressure exerted on the rod (s) is released so that the spring 5 pushes the rod (s) 40 which will then move into the deployed position. Such kinematics is visible at the figure 3a .

On introduit ensuite l'insert 21, correspondant par exemple à l'extrémité d'un brin, au niveau de la barrette 4 en présentant l'ouverture 210 du logement 200 face aux méplats 41 de la ou les tiges 40 afin de loger la barrette 4 dans le logement 200.Then insert the insert 21, corresponding for example to the end of a strand, at the level of the bar 4 by presenting the opening 210 of the housing 200 facing the flats 41 of the rod or rods 40 in order to accommodate the bar 4 in housing 200.

Une fois l'insert 21 en place sur la barrette 4, l'utilisateur effectue les opérations inverse, c'est-à-dire exercer une pression sur la ou les tiges jusqu'à ce que le pointeau 31 viennent en buté sur la paroi de la rainure de guidage 42, puis fait pivoter la tige autour de l'axe A-A par le biais des collerettes vers la position B, et relâche la pression exercée pour que le pointeau vienne se loger dans l'encoche de verrouillage 43 sous l'effet du ressort 5. Ainsi le brin de bracelet ne peut plus être délogé comme on peut l'observer à la figure 2b.Once the insert 21 in place on the bar 4, the user performs the reverse operations, that is to say exerting pressure on the rod or rods until the needle 31 abuts on the wall of the guide groove 42, then rotates the rod around the axis AA by means of the flanges towards position B, and releases the pressure exerted so that the needle comes to lodge in the locking notch 43 under the effect of the spring 5. Thus the bracelet strand can no longer be dislodged as can be observed on the figure 2b .

Avantageusement, au moins l'une des collerettes 44 comprend une fente agencée sur sa face extérieure, à savoir la face visible par le porteur de la montre, pour coopérer avec un outil ou le doigt du porteur afin de faciliter la manipulation de la collerette 44 et le verrouillage et/ou déverrouillage de l'insert 20 sur la barrette 4.Advantageously, at least one of the flanges 44 comprises a slot arranged on its external face, namely the face visible by the wearer of the watch, for cooperating with a tool or the wearer's finger in order to facilitate the handling of the flange 44 and the locking and / or unlocking of the insert 20 on the bar 4.

Avantageusement, l'insert 20 épouse la forme de la corne médiane 10 de façon à limiter les jeux lors de l'assemblage et procurer un assemblage de bonne qualité.Advantageously, the insert 20 follows the shape of the central horn 10 so as to limit the play during assembly and provide a good quality assembly.

Dans le mode de réalisation précédemment décrit, l'insert est disposé sur un bracelet constitué en cuir, en tissu synthétique, en plastique, en métal, en céramique ou encore en composite. De même la barrette 4 est de préférence en métal mais pourrait également être en plastique, céramique ou encore composite.In the embodiment described above, the insert is placed on a bracelet made of leather, synthetic fabric, plastic, metal, ceramic or even composite. Similarly, the bar 4 is preferably made of metal but could also be made of plastic, ceramic or even composite.

Grâce à ces différents aspects de l'invention, on dispose d'un dispositif de fixation d'un bracelet sûr permettant de changer de bracelet aisément et rapidement.Thanks to these various aspects of the invention, there is a device for fixing a secure bracelet allowing the bracelet to be changed easily and quickly.

Bien entendu, la présente invention ne se limite pas à l'exemple illustré et est susceptible de diverses variantes et modifications qui apparaîtront à l'homme de l'art.Of course, the present invention is not limited to the example illustrated and is susceptible to various variants and modifications which will appear to those skilled in the art.

Claims (11)

  1. Device for attaching a bracelet (2) to a watch case (1), the device comprising, on the one hand, a bar (4) formed by at least one telescopic cylindrical shaft (40) secured to the watch case (1) by means of at least one horn (10), and on the other hand, an insert (20) integral with the end of a bracelet, the bar (4) and the insert (20) being complementary to cooperate by interlocking or fitting with each other to form removable assembly means capable of making the bracelet interchangeable,
    characterized in that the bar (4) has at least one flat portion (41), said flat portion being arranged to cooperate by interlocking or fitting with at least one housing (200) made in said at least one insert (20), said at least one housing (200) having a substantially rectangular opening (210) for receiving said at least one flat portion (41), said shaft (40) being telescopic in order to move from a first position A, in which the shaft is deployed and the insert (20) is positionable on the shaft (40), to a second position B, in which the shaft is retracted and said insert is locked on the bar shaft (40).
  2. Attachment device according to claim 1, wherein the bar includes at least one guide track (42) extending along one part of its length.
  3. Attachment device according to claim 2, wherein said at least one guide track (42) includes at least one locking notch (43), said locking notch (43) being configured to define position B of the shaft (40), called the retracted position.
  4. Attachment device according to claims 2 or 3, wherein the horn (10) includes guide means arranged to slide inside said at least one guide track (42).
  5. Attachment device according to claim 4, wherein the guide means include a guide pin (31) arranged to cooperate with said guide track (42).
  6. Attachment means according to any of claims 2 to 5, wherein said guide track (42) is L-shaped, the base of the L receiving said locking notch (43) defining the position B or locked position of the shaft (40).
  7. Attachment device according to any of claims 1 to 6, wherein the shaft (40) includes at least one manipulation element in the form of a collar (44) at its free end.
  8. Attachment device according to claim 7, wherein said at least one collar (44) cooperates with at least one lateral stop surface of the watch case (1).
  9. Attachment device according to any of claims 1 to 8, wherein the watch case (1) includes a median horn (3) having a passage (30) whose diameter corresponds to the diameter of the shaft (40).
  10. Attachment device according to claim 1, wherein the bar (4) includes two shafts (40) each including two parallel and symmetrical flat portions (41), arranged to cooperate with said housing (200) of said insert (20).
  11. Attachment device according to any of claims 1 to 10, wherein said housing (200) takes the form of a groove with an opening (210), the housing (200) having a C-shaped cross-section.
EP17197367.0A 2017-10-19 2017-10-19 Fixing device for a bracelet Active EP3473126B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP17197367.0A EP3473126B1 (en) 2017-10-19 2017-10-19 Fixing device for a bracelet
US16/141,343 US11022943B2 (en) 2017-10-19 2018-09-25 Device for attaching a bracelet
JP2018194073A JP6688362B2 (en) 2017-10-19 2018-10-15 Device for attaching bracelets
CN201811212304.9A CN109674154B (en) 2017-10-19 2018-10-18 Attachment device for attaching a chain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17197367.0A EP3473126B1 (en) 2017-10-19 2017-10-19 Fixing device for a bracelet

Publications (2)

Publication Number Publication Date
EP3473126A1 EP3473126A1 (en) 2019-04-24
EP3473126B1 true EP3473126B1 (en) 2020-07-01

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Application Number Title Priority Date Filing Date
EP17197367.0A Active EP3473126B1 (en) 2017-10-19 2017-10-19 Fixing device for a bracelet

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US (1) US11022943B2 (en)
EP (1) EP3473126B1 (en)
JP (1) JP6688362B2 (en)
CN (1) CN109674154B (en)

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JP1624220S (en) * 2017-12-21 2019-02-12
IT201900006887A1 (en) * 2019-05-16 2020-11-16 Out Of The Box S R L WRIST WATCH
EP3756501B1 (en) * 2019-06-28 2023-06-21 Montres Breguet S.A. Fixing device for a bracelet
FI3798742T3 (en) * 2019-09-24 2025-08-26 Eta Sa Mft Horlogere Suisse CLOCK CASE CENTER AND MOUNT CONNECTOR
CN110703585B (en) * 2019-11-11 2021-03-16 合肥盛东信息科技有限公司 Intelligent old-age service tracking system
EP3825784A1 (en) * 2019-11-22 2021-05-26 Cartier International AG Fastening device for bracelet
JP7322685B2 (en) * 2019-12-06 2023-08-08 セイコーエプソン株式会社 band and watch
CN112826188A (en) * 2021-02-24 2021-05-25 捷开通讯(深圳)有限公司 Combined watchband and watch
CN215455886U (en) * 2021-04-20 2022-01-11 华为技术有限公司 Wearable electronic device
JP2023045044A (en) * 2021-09-21 2023-04-03 カシオ計算機株式会社 Links and clocks
CN114698907B (en) * 2022-03-11 2024-04-05 深圳市艾诺智能科技有限公司 Watch with replaceable watchband
TWD228006S (en) 2022-07-29 2023-10-11 瑞士商寶璣錶股份公司 瑞士 Watch

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Publication number Publication date
JP6688362B2 (en) 2020-04-28
US20190121295A1 (en) 2019-04-25
JP2019076704A (en) 2019-05-23
CN109674154B (en) 2020-10-09
EP3473126A1 (en) 2019-04-24
US11022943B2 (en) 2021-06-01
CN109674154A (en) 2019-04-26

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