EP3422118B1 - Fixing device for a bracelet - Google Patents

Fixing device for a bracelet Download PDF

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Publication number
EP3422118B1
EP3422118B1 EP17179176.7A EP17179176A EP3422118B1 EP 3422118 B1 EP3422118 B1 EP 3422118B1 EP 17179176 A EP17179176 A EP 17179176A EP 3422118 B1 EP3422118 B1 EP 3422118B1
Authority
EP
European Patent Office
Prior art keywords
bar
attachment device
insert
cooperate
arbor
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
EP17179176.7A
Other languages
German (de)
French (fr)
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EP3422118A1 (en
Inventor
Patrice Golay
Fabrice Rochat
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 EP17179176.7A priority Critical patent/EP3422118B1/en
Priority to US16/012,164 priority patent/US11089847B2/en
Priority to JP2018124025A priority patent/JP6650968B2/en
Priority to CN201810696041.7A priority patent/CN109198817B/en
Publication of EP3422118A1 publication Critical patent/EP3422118A1/en
Application granted granted Critical
Publication of EP3422118B1 publication Critical patent/EP3422118B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • A44C5/142—Cord type straps
    • 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
    • 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
    • A44C5/02—Link constructions
    • 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
    • G04B37/0008—Cases for pocket watches and wrist watches
    • 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

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 member for actuating the pistons.
  • 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 fixing 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 allow the bar to pass during its introduction into the passage and to hold it in place when the latter 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 lead to 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 secured to the watch case by means of at least one horn, and on the other hand an insert secured to the end of the bracelet, the bar and the insert being complementary in order to cooperate by fitting one into the other by constituting removable assembly means capable of making the bracelet interchangeable.
  • the bar is formed by a cylindrical axis having at least one flat, said flat being arranged to cooperate by interlocking with at least one blind housing produced in said insert, said blind housing having a substantially rectangular opening for receiving said au at least one flat part of the bar, the bar comprising at least one control member so as to rotate it from a first position A in which the flat part of the bar is capable of receiving the insert, towards a second position B in which said insert is locked on the bar.
  • the Figures 1a to 1d 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 box, and on the other hand an insert secured to the end of the bracelet 2, the bar 4 and the insert 20 being complementary to cooperate by fitting one into the other by constituting removable assembly means capable of making the bracelet interchangeable.
  • the watch case comprises a middle horn comprising a passage 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 of two parts, a first part 11 formed with the watch case and comprising a groove 110 arranged to receive the bar 4, and a second part formed by a removable cover 12 held on the first part, and implicitly on the watch case 1, by means of screws 13.
  • Such an arrangement makes it possible to assemble and disassemble the bar 4 easily and quickly without the risk of damaging or twisting it.
  • the watch case 1 comprises means for maintaining the position of the bar 4.
  • these holding means are in the form of a pair of ball pawls 14, each ball pawl 14 being arranged to cooperate with a first pair of cavities 42 and a second pair of cavities 42 'formed on the rod 40 of the bar 4.
  • ball pawl such as a jumper or a spring resting on the flat for example.
  • the bar 4 is formed by a cylindrical rod 40 having at least one flat 41, the flat 41 being arranged to cooperate by interlocking with at least one housing 21 produced in the insert 20 of the bracelet strand 2 or d 'a link.
  • the housing 21 has a substantially rectangular opening 210 for receiving the flat 41 of the bar 4, 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 bar 4 comprises two flats 41 disposed close to each of the ends of the bar 4, so that there is a flat 41 on either side of the central horn, each of the flat 41 cooperating with an insert 20.
  • the bar 4 comprises at least one control member so as to rotate it from a first position A in which the flat 41 of the bar 4 is capable of receiving the insert, towards a second position B in which said insert is locked on the bar 4.
  • the bar 4 can be brought back from position B to position A by elastic return means such as a jumper spring on an eccentric or else a torsion spring on the bar.
  • control member comprises a flange 43 secured to each of the ends of the bar 4, the bar 4 and the flanges 43 then forming a single element. It can also be envisaged to assemble the collar 43 at the end of the bar 4 by means of an insertion point mounted in a hollow part of the bar 4. An internal bulge is then arranged at the end of the bar 4 to cooperate with the insertion point, in order to clip the flange 43 into the bar 4. Other methods of fixing the flanges 43 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 bar 4 can be composed of three parts, as it can form only one, with the flanges 43 pre-molded at the ends of the rod 40, the flats 41 and the cavities 42, 42 'then being milled directly on the rod 40. Furthermore, the sections of both the rod 40 of the bar 4 and the flanges 43 have been chosen preferably cylindrical to facilitate a degree of freedom in rotation about its axis AA.
  • the central horn 10 acts as a radial retaining element, complementary to the groove 110 whose shape and depth are complementary to that of the rod 40 so that the bar 4 cannot come out of the groove 110 when it is put in place.
  • the middle horn 10 comprises two housings receiving the ball pawls 14, the latter being arranged to cooperate with the cavities 42, 42 'of the bar 4, their respective sizes and depths are configured so that the bar 4 no longer has any degree of freedom in the groove 110 when the pawls 14 are engaged in the cavities 42 or 42 ′ of the bar 4.
  • the attachment device comprises a housing 21 produced in the insert 20 of the bracelet strand.
  • the housing 21 is in the form of an open housing formed by a cylindrical groove 210 arranged in the insert 20 of the bracelet strand.
  • This cylindrical groove 211 comprises a rectangular opening 210 allowing the introduction and the maintenance of the bar 4 of cylindrical shape which two flats 41 to correspond to the shape of the housing.
  • the groove 211 has a C-shaped section.
  • the watch case 1 comprises first vertical side walls 100 opposite which are provided lateral clearances 101 in the middle of the case to accommodate the flanges 43.
  • the flanges 43 here taking a preferably cylindrical shape, the lateral clearances 101 have a corresponding cylindrical excavation shape in watch case 1.
  • the user rotates the bar around the axis AA by means of the flanges towards the position B until the flats 41 are angularly offset by at least 45 ° around the axis AA, and more preferably 90 °, so the bracelet strand can no longer be dislodged as can be seen from the figure 4b .
  • the ball pawls 14 then cooperate with the second pair of cavities 42 'angularly offset by the same value around the axis AA.
  • At least one of the flanges 43 comprises a slot 45 arranged on its outer face, namely the face visible to the wearer of the watch, for cooperating with a tool or the wearer's finger in order to facilitate handling. of the collar 43 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)
  • Electric Clocks (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 fixed 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 furthermore, 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, tels que les dispositifs de fixation des documents EP2657795A2 et EP0968670A1 . 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 detach the bracelet from the box without using a tool, such as document fixing devices EP2657795A2 and EP0968670A1 . Such devices usually include a bar, of the type described above, on which is mounted, passing through the tube, a member for actuating the pistons. 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 fixing 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 allow the bar to pass during its introduction into the passage and to hold it in place when the latter occupies a determined angular position.

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 lead to 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 solidaire de la boîte de montre par le biais d'au moins une corne, et d'autre part un insert solidaire de l'extrémité du 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 secured to the watch case by means of at least one horn, and on the other hand an insert secured to the end of the bracelet, the bar and the insert being complementary in order to cooperate by fitting one into the other by constituting removable assembly means capable of making the bracelet interchangeable.

Selon l'invention, la barrette est formée par un axe cylindrique présentant au moins un méplat, ledit méplat étant agencé pour coopérer par emboitement avec au moins un logement borgne réalisé dans ledit insert, ledit logement borgne présentant une ouverture sensiblement rectangulaire pour recevoir ledit au moins un méplat de la barrette, la barrette comprenant au moins un organe de commande de manière à la faire pivoter d'une première position A dans laquelle le méplat de la barrette est apte à recevoir l'insert, vers une deuxième position B dans laquelle ledit insert est verrouillé sur la barrette.According to the invention, the bar is formed by a cylindrical axis having at least one flat, said flat being arranged to cooperate by interlocking with at least one blind housing produced in said insert, said blind housing having a substantially rectangular opening for receiving said au at least one flat part of the bar, the bar comprising at least one control member so as to rotate it from a first position A in which the flat part of the bar is capable of receiving the insert, towards a second position B in which said insert is locked on the bar.

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

  • l'organe de commande comprend des éléments de retenue axiaux, les dits éléments de retenue axiaux étant formés par au moins une collerette à au moins une extrémité de la barrette ;
  • lesdits éléments de retenue axiaux coopèrent avec des surfaces de butée latérales de la boite de montre ;
  • ladite au moins une collerette comprend une rainure agencée pour coopérer avec un outil ;
  • ladite collerette comprend un repère indiquant la première position A ;
  • ladite barrette comprend un méplat à proximité de chacune de ses extrémités ;
  • ladite boite de montre comprend des moyens de maintien de la position de la barrette, lesdits moyens de maintien comprenant au moins un cliquet à bille agencé pour coopérer avec une cavité formée sur l'axe de la barrette ;
  • la boite de montre comprend une corne médiane comprenant un passage dont le diamètre correspond au diamètre de l'axe de la barrette ;
  • ladite corne médiane comprend un capot amovible maintenu sur la boite au moyen de vis ;
  • ledit insert présente une section en forme de C.
In accordance with other advantageous variants of the invention:
  • the control member comprises axial retaining elements, said axial retaining elements being formed by at least one flange at at least one end of the strip;
  • said axial retaining elements cooperate with lateral abutment surfaces of the watch case;
  • said at least one flange comprises a groove arranged to cooperate with a tool;
  • said collar comprises a mark indicating the first position A;
  • said strip comprises a flat near each of its ends;
  • said watch case comprises means for holding the position of the bar, said holding means comprising at least one ball pawl arranged to cooperate with a cavity formed on the axis of the bar;
  • the watch case comprises a central horn comprising a passage whose diameter corresponds to the diameter of the axis of the bar;
  • said central horn comprises a removable cover held on the box by means of screws;
  • said insert has 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 :

  • les figure 1a à 1d illustrent respectivement des vues en perspective et en coupe d'une boîte de montre équipée d'un dispositif de fixation selon l'invention ;
  • les figures 2a et 2b représentent la même boîte de montre avec son bracelet avant sa mise en place,
  • les figure 3a à 3c illustrent le dispositif de fixation conforme à l'invention lors de la mise en place du bracelet, et
  • les figures 4a à 4c illustrent le dispositif de fixation conforme à l'invention lors du verrouillage du bracelet.
Other characteristics and advantages of the present invention will emerge more clearly from the following detailed description of an exemplary embodiment of a device for attaching 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 1a to 1d respectively illustrate perspective and sectional views of a watch case equipped with a fixing device according to the invention;
  • the Figures 2a and 2b represent the same watch case with its strap before it is put in place,
  • the figure 3a to 3c illustrate the fixing device according to the invention when the bracelet is put in place, and
  • the Figures 4a to 4c illustrate the fixing device according to the invention when locking the bracelet.

Description détaillée des modes de réalisation préférésDetailed description of preferred embodiments

Les figures 1a à 1d 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 1a to 1d 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 box, and on the other hand an insert secured to the end of the bracelet 2, the bar 4 and the insert 20 being complementary 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 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 de deux parties, un première partie 11 formée avec la boite de montre et comprenant une rainure 110 agencée pour recevoir la barrette 4, et une deuxième partie formée par un capot amovible 12 maintenu sur la première partie, et implicitement sur la boîte de montre 1, au moyen de vis 13. Un tel agencement permet de monter et démonter la barrette 4 facilement et rapidement sans risque de l'abimer ou bien de la tordre.As can be seen in figure 1c and 1d , the watch case comprises a middle horn comprising a passage 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 of two parts, a first part 11 formed with the watch case and comprising a groove 110 arranged to receive the bar 4, and a second part formed by a removable cover 12 held on the first part, and implicitly on the watch case 1, by means of screws 13. Such an arrangement makes it possible to assemble and disassemble the bar 4 easily and quickly without the risk of damaging or twisting it.

Avantageusement, la boite de montre 1 comprend des moyens de maintien de la position de la barrette 4. Tels que représentés sur la figures 1c, ces moyens de maintien se présentent sous la forme d'une paire de cliquets à bille 14, chaque cliquet à bille 14 étant agencé pour coopérer avec une première paire de cavités 42 et une deuxième paire de cavité 42' formées sur la tige 40 de la barrette 4. Bien entendu, l'homme du métier pourra mettre en œuvre d'autres alternatives au cliquet à bille, comme un sautoir ou un ressort en appuis sur le méplat par exemple.Advantageously, the watch case 1 comprises means for maintaining the position of the bar 4. As shown in the figures 1c , these holding means are in the form of a pair of ball pawls 14, each ball pawl 14 being arranged to cooperate with a first pair of cavities 42 and a second pair of cavities 42 'formed on the rod 40 of the bar 4. Of course, those skilled in the art can implement other alternatives to the ball pawl, such as a jumper or a spring resting on the flat for example.

Selon l'invention, la barrette 4 est formée par une tige cylindrique 40 présentant au moins un méplat 41, le méplat 41 étant agencé pour coopérer par emboitement avec au moins un logement 21 réalisé dans l'insert 20 du brin de bracelet 2 ou d'un maillon.According to the invention, the bar 4 is formed by a cylindrical rod 40 having at least one flat 41, the flat 41 being arranged to cooperate by interlocking with at least one housing 21 produced in the insert 20 of the bracelet strand 2 or d 'a link.

Le logement 21 présente une ouverture 210 sensiblement rectangulaire pour recevoir le méplat 41 de la barrette 4, la hauteur et la longueur de l'ouverture 210 correspondant à la hauteur et à la longueur des méplats 41 de la barrette 4.The housing 21 has a substantially rectangular opening 210 for receiving the flat 41 of the bar 4, the height and the length of the opening 210 corresponding to the height and the length of the flat 41 of the bar 4.

Selon le mode de réalisation préférentiel de l'invention illustré sur les figures, la barrette 4 comprend deux méplats 41 disposé à proximité de chacune des extrémités de la barrette 4, de façon à ce qu'il y ait un méplat 41 de part et d'autre de la corne médiane, chacun des méplats 41 coopérant avec un insert 20.According to the preferred embodiment of the invention illustrated in the figures, the bar 4 comprises two flats 41 disposed close to each of the ends of the bar 4, so that there is a flat 41 on either side of the central horn, each of the flat 41 cooperating with an insert 20.

Avantageusement, la barrette 4 comprend au moins un organe de commande de manière à la faire pivoter d'une première position A dans laquelle le méplat 41 de la barrette 4 est apte à recevoir l'insert, vers une deuxième position B dans laquelle ledit insert est verrouillé sur la barrette 4.Advantageously, the bar 4 comprises at least one control member so as to rotate it from a first position A in which the flat 41 of the bar 4 is capable of receiving the insert, towards a second position B in which said insert is locked on the bar 4.

Selon un mode de réalisation particulier de l'invention, la barrette 4 peut être ramenée de la position B vers la position A par des moyens de rappel élastiques tel qu'un ressort sautoir sur excentrique ou encore ressort de torsion sur la barrette.According to a particular embodiment of the invention, the bar 4 can be brought back from position B to position A by elastic return means such as a jumper spring on an eccentric or else a torsion spring on the bar.

Tel qu'illustré, l'organe de commande comprend une collerette 43 solidaire de chacune des extrémités de la barrette 4, la barrette 4 et les collerettes 43 formant alors un élément unique. Il peut aussi être envisagé d'assembler la collerette 43 à l'extrémité de la barrette 4 par l'intermédiaire d'une pointe d'insertion montée dans une partie creuse de la barrette 4. Un renflement interne est alors aménagé à l'extrémité de la barrette 4 pour coopérer avec la pointe d'insertion, afin de clipper la collerette 43 dans la barrette 4. D'autres modes de fixation des collerettes 43 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 control member comprises a flange 43 secured to each of the ends of the bar 4, the bar 4 and the flanges 43 then forming a single element. It can also be envisaged to assemble the collar 43 at the end of the bar 4 by means of an insertion point mounted in a hollow part of the bar 4. An internal bulge is then arranged at the end of the bar 4 to cooperate with the insertion point, in order to clip the flange 43 into the bar 4. Other methods of fixing the flanges 43 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.

Ainsi, la barrette 4 peut être composée en trois parties, comme elle peut n'en former qu'une, avec les collerettes 43 pré-moulées aux extrémités de la tige 40, les méplats 41 et les cavités 42, 42' étant ensuite fraisés directement sur la tige 40. Par ailleurs, les sections à la fois de la tige 40 de la barrette 4 et des collerettes 43 ont été choisis de préférence cylindriques pour faciliter un degré de liberté en rotation autour de son axe A-A.Thus, the bar 4 can be composed of three parts, as it can form only one, with the flanges 43 pre-molded at the ends of the rod 40, the flats 41 and the cavities 42, 42 'then being milled directly on the rod 40. Furthermore, the sections of both the rod 40 of the bar 4 and the flanges 43 have been chosen preferably cylindrical to facilitate a degree of freedom in rotation about its axis AA.

De manière avantageuse, la corne médiane 10 fait office d'élément de retenue radial, complémentaire à la rainure 110 dont la forme et la profondeur sont complémentaires à celle de la tige 40 de telle sorte que la barrette 4 ne puisse pas ressortir de la rainure 110 lors de sa mise en place. Sur les figures 1c et 1d, on pourra remarquer que la corne médiane 10 comprend deux logements recevant les cliquets à bille 14, ces derniers étant agencé pour coopérer avec les cavités 42, 42' de la barrette 4, leurs tailles et leurs profondeurs respectives sont configurées de telle sorte que la barrette 4 ne dispose de plus aucun degré de liberté dans la rainure 110 lorsque les cliquets 14 sont engagés dans les cavités 42 ou 42' de la barrette 4.Advantageously, the central horn 10 acts as a radial retaining element, complementary to the groove 110 whose shape and depth are complementary to that of the rod 40 so that the bar 4 cannot come out of the groove 110 when it is put in place. On the Figures 1c and 1d , it will be noted that the middle horn 10 comprises two housings receiving the ball pawls 14, the latter being arranged to cooperate with the cavities 42, 42 'of the bar 4, their respective sizes and depths are configured so that the bar 4 no longer has any degree of freedom in the groove 110 when the pawls 14 are engaged in the cavities 42 or 42 ′ of the bar 4.

Comme on peut le voir aux figures 2a et 2b, le dispositif d'attache comprend un logement 21 réalisé dans l'insert 20 du brin de bracelet. Le logement 21 se présente sous la forme d'un logement ouvert formé par une rainure cylindrique 210 agencée dans l'insert 20 du brin de bracelet. Cette rainure cylindrique 211 comprend une ouverture rectangulaire 210 permettant l'introduction et le maintien de la barrette 4 de forme cylindrique qui deux méplats 41 pour correspondre à la forme du logement. On peut ainsi observer sur les vues en coupe des figures 2b et 3b que la rainure 211 présente une section en forme de C.As can be seen in Figures 2a and 2b , the attachment device comprises a housing 21 produced in the insert 20 of the bracelet strand. The housing 21 is in the form of an open housing formed by a cylindrical groove 210 arranged in the insert 20 of the bracelet strand. This cylindrical groove 211 comprises a rectangular opening 210 allowing the introduction and the maintenance of the bar 4 of cylindrical shape which two flats 41 to correspond to the shape of the housing. We can thus observe on the sectional views of figures 2b and 3b that the groove 211 has a C-shaped section.

Selon le mode de réalisation préférentiel illustré à la figure 1, la boîte de montre 1 comprend des premières parois latérales 100 verticales en regard desquelles sont prévus des dégagements latéraux 101 dans la carrure de la boîte pour y loger les collerettes 43. Les collerettes 43 prenant ici une forme de préférence cylindrique, les dégagements latéraux 101 ont une forme correspondante d'excavation cylindrique dans la boîte de montre 1.According to the preferred embodiment illustrated in figure 1 , the watch case 1 comprises first vertical side walls 100 opposite which are provided lateral clearances 101 in the middle of the case to accommodate the flanges 43. The flanges 43 here taking a preferably cylindrical shape, the lateral clearances 101 have a corresponding cylindrical excavation shape in watch case 1.

Pour fixer le bracelet 2 au boîtier 1 comme illustré aux figures 3a et 3b, on introduit 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 21 face aux méplats 41 de la barrette 4 afin de loger la barrette 4 dans le logement 21. Afin de faciliter le bon positionnement des méplats 41, un repère 44 est prévu sur au moins l'une des collerettes 43 pour indiquer la première position A de la barrette 4 pour mettre en place l'insert 20. De plus, il est prévu que les cliquets à billes 14 coopèrent avec les premières cavités 42 de la tige 40, une fois le repère 44 visible par l'utilisateur, de manière à verrouiller la tige 40 dans la position A.To attach bracelet 2 to case 1 as illustrated in Figures 3a and 3b , 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 21 facing the flats 41 of the bar 4 in order to accommodate the bar 4 in the housing 21. In order to facilitate the correct positioning of the flats 41, a mark 44 is provided on at least one of the flanges 43 to indicate the first position A of the bar 4 to install the insert 20. In addition, it is expected that the ball pawls 14 cooperate with the first cavities 42 of the rod 40, once the mark 44 visible by the user, so as to lock the rod 40 in the position A.

Une fois l'insert 21 en place sur la barrette 4, l'utilisateur fait pivoter la barrette autour de l'axe A-A par le biais des collerettes vers la position B jusqu'à ce que les méplats 41 soient décalés angulairement d'au moins 45° autour de l'axe A-A, et plus préférentiellement de 90°, ainsi le brin de bracelet ne peut plus être délogé comme on peut l'observer à la figure 4b. Pour maintenir l'insert 21 dans cette position, les cliquets à bille 14 coopèrent alors avec la deuxième paire de cavités 42' décalées angulairement d'une même valeur autour de l'axe A-A.Once the insert 21 in place on the bar 4, the user rotates the bar around the axis AA by means of the flanges towards the position B until the flats 41 are angularly offset by at least 45 ° around the axis AA, and more preferably 90 °, so the bracelet strand can no longer be dislodged as can be seen from the figure 4b . To maintain the insert 21 in this position, the ball pawls 14 then cooperate with the second pair of cavities 42 'angularly offset by the same value around the axis AA.

Selon l'invention, au moins l'une des collerettes 43 comprend une fente 45 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 43 et le verrouillage et/ou déverrouillage de l'insert 20 sur la barrette 4.According to the invention, at least one of the flanges 43 comprises a slot 45 arranged on its outer face, namely the face visible to the wearer of the watch, for cooperating with a tool or the wearer's finger in order to facilitate handling. of the collar 43 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 previously described embodiment, 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 (13)

  1. Device for attaching a bracelet or strap (2) to a watch case (1) including, on the one hand, a bar (4) 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 in order to cooperate by fitting one inside the other to form removable assembly means able to make the bracelet interchangeable,
    the bar (4) being formed by a cylindrical arbor (40) having at least one flat portion (41), said flat portion (41) being arranged to cooperate by fitting with at least one housing (210) made in said at least one insert (20), said at least one housing (20) having a substantially rectangular opening (210) for receiving said at least one flat portion (41), characterized in that the bar (4) comprises at least one control member for pivoting the bar about the axis (A-A) from a first position (A), in which the insert (20) is able to be positioned on the arbor (40) of the bar (4), to a second position (B), in which said insert is locked on the arbor (40) of the bar.
  2. Attachment device according to claim 1, wherein the control member includes at least one collar (43) at at least one end of the bar (4), said at least one collar (43) forming an axial retaining element.
  3. Attachment device (1) according to claim 2, characterized in that said at least one collar (43) cooperates with at least one lateral stop surface of the watch case (1).
  4. Attachment device (1) according to claim 2, characterized in that said at least one collar (43) includes a slot (45) arranged to cooperate with a tool to pivot the bar (4) about the axis (A-A).
  5. Attachment device (1) according to any of claims 2 to 4, characterized in that said collar (43) includes a guide-mark (44) indicating the first position (A) of the bar (4).
  6. Attachment device (1) according to any of claims 1 to 5, characterized in that said watch case (1) includes means for maintaining the position of the bar, said maintaining means including at least one ball catch (14) arranged to cooperate with at least one cavity (42, 42') formed on the arbor (40) of the bar.
  7. Attachment device (1) according to claim 6, characterized in that the arbor (40) includes a first pair of cavities (42) arranged to cooperate with a pair of ball catches (14) when the bar is in the first position (A).
  8. Attachment device (1) according to claim 6, characterized in that the arbor (40) includes a second pair of cavities (42') arranged to cooperate with a pair of ball catches (14) when the bar is in the second position (B).
  9. Attachment device (1) according to claims 6 and 7, characterized in that the first pair of cavities (42) and the second pair of cavities (42') are angularly shifted by 45° about the axis (A-A), and more preferentially by 90° about the axis (A-A).
  10. Attachment device (1) according to any of claims 1 to 9, characterized in that the watch case includes a median horn including a passage whose diameter corresponds to the diameter of the arbor of the bar.
  11. Attachment device (1) according to claim 10, characterized in that said bar (4) includes a flat portion (41) close to each of its ends, one flat portion (41) being arranged on either side of the median horn (10).
  12. Attachment device (1) according to claim 10 or 11, characterized in that said median horn (10) includes a removable cap (11) held on the case (1) by means of screws (13).
  13. Attachment device (1) according to any of claims 1 to 12, characterized in that said housing (21) takes the form of a groove (21) with an opening (210), the housing (21) having a C-shaped cross-section.
EP17179176.7A 2017-06-30 2017-06-30 Fixing device for a bracelet Active EP3422118B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP17179176.7A EP3422118B1 (en) 2017-06-30 2017-06-30 Fixing device for a bracelet
US16/012,164 US11089847B2 (en) 2017-06-30 2018-06-19 Device for attaching a bracelet
JP2018124025A JP6650968B2 (en) 2017-06-30 2018-06-29 Devices for attaching bangles
CN201810696041.7A CN109198817B (en) 2017-06-30 2018-06-29 Device for attaching a chain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17179176.7A EP3422118B1 (en) 2017-06-30 2017-06-30 Fixing device for a bracelet

Publications (2)

Publication Number Publication Date
EP3422118A1 EP3422118A1 (en) 2019-01-02
EP3422118B1 true EP3422118B1 (en) 2020-02-26

Family

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Application Number Title Priority Date Filing Date
EP17179176.7A Active EP3422118B1 (en) 2017-06-30 2017-06-30 Fixing device for a bracelet

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US (1) US11089847B2 (en)
EP (1) EP3422118B1 (en)
JP (1) JP6650968B2 (en)
CN (1) CN109198817B (en)

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JP1624219S (en) * 2017-12-21 2019-02-12
EP3756501B1 (en) * 2019-06-28 2023-06-21 Montres Breguet S.A. Fixing device for a bracelet
WO2021058213A1 (en) * 2019-09-24 2021-04-01 Eta Sa Manufacture Horlogère Suisse Device for horn/middle connection for a watch
USD957268S1 (en) * 2020-01-09 2022-07-12 Montres Breguet Sa (Montres Breguet Ag) (Montres B Watch case
US20240017823A1 (en) * 2022-07-18 2024-01-18 Textron Innovations Inc. Optimizing usage of supplemental engine power

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CH327838A (en) 1956-05-22 1958-02-15 Ed Wenger S A Manufacture De B Spring bar for attaching a strap to a watch
US3964250A (en) * 1975-03-24 1976-06-22 Fas/Con Systems, Inc. Wristwatch case
FR2742638B1 (en) * 1995-12-26 1998-02-20 Naja DEVICE FOR FIXING ONE END OF A LINK TO AN OBJECT, IN PARTICULAR A WATCH
JP3924370B2 (en) * 1998-01-29 2007-06-06 シチズン時計株式会社 Band connection structure
CN2660959Y (en) * 2003-11-10 2004-12-08 詹世阳 Dismounting easily watchband unit
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US8770831B1 (en) * 2012-07-19 2014-07-08 Invicta Watch Company Of America, Inc. Coupling pin connection for securing a watchband to a watchcase
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Also Published As

Publication number Publication date
EP3422118A1 (en) 2019-01-02
US20190000195A1 (en) 2019-01-03
US11089847B2 (en) 2021-08-17
CN109198817B (en) 2021-07-13
JP2019012069A (en) 2019-01-24
JP6650968B2 (en) 2020-02-19
CN109198817A (en) 2019-01-15

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