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 รก 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 prรฉsente invention se rapporte au domaine de l'horlogerie ou de la bijouterie. Elle concerne plus prรฉcisรฉment un dispositif de fixation d'un bracelet ร  un objet, notamment une boรฎte 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.

Arriรจre-plan de l'inventionInvention background

Gรฉnรฉralement, les bracelets, en cuir ou en mรฉtal, sont fixรฉs aux cornes d'une boรฎte de montre, par l'intermรฉdiaire d'une barrette formรฉe d'un tube, dans lequel sont montรฉs deux pistons mobiles en translation, et un organe รฉlastique disposรฉ entre lesdits pistons et tendant ร  les chasser vers l'extรฉrieur du tube. Ladite barrette est montรฉe dans un logement prรฉvu ร  cet effet ร  une extrรฉmitรฉ du bracelet, et les pistons sont engagรฉs dans des alรฉsages borgnes rรฉalisรฉs en vis-ร -vis dans les cornes de la boรฎte.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 dรฉsolidariser un bracelet ainsi fixรฉ ร  une boรฎte, il faut disposer d'un outil conรงu pour repousser les pistons dans le tube, ร  l'encontre de la contrainte exercรฉe par l'organe รฉlastique, et les extraire ainsi des alรฉsages. Le porteur de la montre n'est pas en permanence muni d'un tel outil, et de plus, son utilisation peut s'avรฉrer incommode. C'est pourquoi les bracelets munis d'un tel dispositif de fixation sont gรฉnรฉralement attachรฉs de maniรจre permanente ร  la boรฎte.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 dรฉsolidariser le bracelet de la boรฎte sans recourir ร  un outil. De tels dispositifs comportent habituellement une barrette, du type dรฉcrit prรฉcรฉdemment, sur laquelle est montรฉ, 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 dรฉcrit dans le brevet CH 327 838 . Le doigt est montรฉ coulissant ร  travers une fente axiale pratiquรฉe dans le tube, et son dรฉplacement le long de la fente permet de repousser l'un des pistons ร  l'intรฉrieur 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 dรฉcrit une boรฎte de montre avec un dispositif de fixation d'un bracelet ร  la boรฎte, la corne centrale prรฉsente 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 prรฉsente sous la forme d'un cylindre avec un mรฉplat sur toute sa longueur de maniรจre ร  laisser passer la barrette lors de son introduction dans le passage et la maintenir en place lorsque celle-ci occupe une position angulaire dรฉterminรฉe.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 รฉgalement du document EP 2 540 188 un dispositif de fixation d'un bracelet ร  la boรฎte. Le document JP2014161402 dรฉcrit le prรฉambule de la revendication 1 et un mรฉplat sur un membre cylindrique de renforcement montรฉ 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 dรฉcrits sont gรฉnรฉralement employรฉs pour des bracelets interchangeables, qu'ils permettent de remplacer au grรฉ du porteur. Ils ne sont toutefois pas exempts d'inconvรฉnients. On notera, en particulier, qu'ils nรฉcessitent des modifications structurelles majeures au niveau de la barrette, telles que, par exemple, la rรฉalisation d'une ouverture au niveau du tube, ou la transformation des pistons. Ces changements entraรฎnent des surcoรปts de fabrication importants. Ces dispositifs de fixation comportent, par ailleurs, un รฉlรฉment proรฉminent, ร  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.

Rรฉsumรฉ de l'inventionSummary of the invention

La prรฉsente invention permet de pallier ces inconvรฉnients, en proposant un dispositif de fixation d'un bracelet ร  une boรฎte de montre, le dispositif comprenant d'une part une barrette formรฉe par au moins une tige cylindrique tรฉlescopique solidaire de la boรฎte de montre par le biais d'au moins une corne, et d'autre part un insert solidaire de l'extrรฉmitรฉ d'un bracelet, la barrette et l'insert รฉtant complรฉmentaires pour coopรฉrer par emboรฎtement l'un dans l'autre en constituant des moyens d'assemblage amovibles aptes ร  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 prรฉsente au moins un mรฉplat, ledit mรฉplat รฉtant agencรฉ pour coopรฉrer par emboitement avec au moins un logement rรฉalisรฉ dans ledit au moins un insert, ledit au moins un logement prรฉsentant une ouverture sensiblement rectangulaire pour recevoir ledit au moins un mรฉplat, ladite tige รฉtant tรฉlescopique de maniรจre ร  passer d'une premiรจre position A dans laquelle la tige est dรฉployรฉe et l'insert est apte ร  รชtre positionnรฉ sur la tige de la tige, vers une deuxiรจme position B dans laquelle la barrette est rรฉtractรฉe et ledit insert est verrouillรฉ 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.

Conformรฉment ร  d'autres variantes avantageuses de l'invention :

  • la barrette comprend au moins une piste de guidage s'รฉtendant sur tout ou partie de sa longueur ;
  • ladite au moins une piste comprend au moins une encoche, ladite encoche รฉtant configurรฉe pour dรฉfinir la position B, dite position rรฉtractรฉe ;
  • la corne comprend des moyens de guidage agencรฉs pour glisser dans ladite au moins une piste ;
  • les moyens de guidage comprennent un pointeau agencรฉ pour coopรฉrer avec ladite piste de guidage ;
  • ladite piste de guidage est en forme de L, la base du L recevant ladite encoche de verrouillage dรฉfinissant la position B, ou position verrouillรฉe, de la tige ;
  • la tige comprend au moins une collerette ร  au moins une extrรฉmitรฉ, ladite au moins une collerette formant un รฉlรฉment de retenue axiale ;
  • ladite au moins une collerette coopรจrent avec au moins une surface de butรฉe latรฉrale de la boite de montre ;
  • la boite de montre comprend une corne mรฉdiane comprenant un passage dont le diamรจtre correspond au diamรจtre de l'axe de la barrette ;
  • la barrette comprend deux tiges comprend chacune deux mรฉplats, parallรจles et symรฉtriques, agencรฉs pour coopรฉrer avec ledit logement dudit insert ;
  • ledit logement se prรฉsente sous la forme d'une rainure avec ouverture, le logement prรฉsentant 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 caractรฉristiques et avantages de la prรฉsente invention ressortiront plus clairement de la description dรฉtaillรฉe qui suit d'un exemple de rรฉalisation d'un dispositif de fixation d'un bracelet selon l'invention, cet exemple รฉtant donnรฉ ร  titre purement illustratif et non limitatif seulement, en liaison avec le dessin annexรฉ sur lequel :

  • la figure 1 illustre une vue รฉclatรฉe en perspective d'une boรฎte de montre รฉquipรฉe d'un dispositif de fixation selon l'invention ;
  • les figures 2a et 2b reprรฉsentent respectivement une vue en coupe transversale de la boite de montre avec le dispositif en position dรฉployรฉe et en position rรฉtractรฉe ;
  • les figure 3a et 3b illustrent une barrette d'un dispositif de fixation conforme ร  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 dรฉtaillรฉe des modes de rรฉalisation prรฉfรฉrรฉsDetailed description of preferred embodiments

Les figures 1 ร  4 illustrent une montre bracelet ainsi que des vues dรฉtaillรฉe du dispositif d'attache du bracelet 2 ร  la boรฎte de montre 1 selon un mode de rรฉalisation prรฉfรฉrentiel de l'invention. Le dispositif de fixation du bracelet 2 ร  la boรฎte de montre 1 comprend d'une part une barrette 4 solidaire de la boรฎte de montre par le biais d'au moins une corne solidaire de la boรฎte, et d'autre part un insert solidaire de l'extrรฉmitรฉ du bracelet 2, la barrette 4 et l'insert 20 รฉtant complรฉmentaires pour coopรฉrer par emboรฎtement l'un dans l'autre en constituant des moyens d'assemblage amovibles aptes ร  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 mรฉdiane comprenant un passage 30 dont le diamรจtre correspond au diamรจtre de l'axe de la barrette 4 de maniรจre que celle-ci puisse tourner librement dans le logement. La corne mรฉdiane 10 est formรฉe d'une seule piรจce et peut รชtre prรฉvu amovible et รชtre maintenue sur la boรฎte de montre 1, au moyen de vis par exemple. Un tel agencement permet de monter et dรฉmonter la corne facilement et rapidement. On pourrait รฉgalement imaginer que la corne soit formรฉe avec la boรฎte 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 formรฉe par au moins une tige cylindrique 40 prรฉsentant au moins un mรฉplat 41, le mรฉplat 41 รฉtant agencรฉ pour coopรฉrer par emboitement avec au moins un logement 200 rรฉalisรฉ dans l'insert 20 du brin de bracelet 2 ou d'un maillon. Telle que reprรฉsentรฉes sur les figures la barrette 4 est formรฉes par deux tiges 40, chacune comprenant deux mรฉplats 41 parallรจles et symรฉtriques, et les deux tiges 40 รฉtant sรฉparรฉes par un ressort 5 les repoussant l'une de l'autre, les tiges 40 tendant ร  รชtre ramenรฉe en position dรฉployรฉe par le ressort 5 disposรฉ dans le logement 30 de la corne 3 tant que les tiges ne sont pas verrouillรฉe.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 mรฉtier pourrait imaginer une tige unique formant la barrette 4, et n'aurait pas de difficultรฉs particuliรจres ร  adapter ce dispositif ร  une boรฎte 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 maniรจre avantageuse, la tige 40 est prรฉvue tรฉlescopique de maniรจre ร  passer d'une premiรจre position A dans laquelle la tige est dรฉployรฉe et l'insert 20 est apte ร  รชtre positionnรฉ sur la tige 40, vers une deuxiรจme position B dans laquelle la tige est rรฉtractรฉe et l'insert est verrouillรฉ 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'illustrรฉes aux figures 3a et 3b, la tige 40 comprend au moins une piste 42 de guidage prรฉsentant une forme en L, ou en forme de baรฏonnette, et s'รฉtendant sur une partie de sa longueur, la piste 42 comprenant au moins une encoche 43, sur la base du L, de maniรจre ร  dรฉfinir la position rรฉtractรฉe 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 ร  son extrรฉmitรฉ libre de maniรจre ร  la faire pivoter de la premiรจre position A dans laquelle le mรฉplat 41 de la tige est apte ร  recevoir l'insert, vers la deuxiรจme position B dans laquelle l'insert 2 est verrouillรฉ 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'illustrรฉ, l'organe de manipulation comprend une collerette 44 solidaire de chacune des extrรฉmitรฉs de la tige 40, la tige 40 et la collerette 44 formant alors un รฉlรฉment unique. Il peut aussi รชtre envisagรฉ d'assembler la collerette 44 ร  l'extrรฉmitรฉ de la tige 40 par l'intermรฉdiaire d'une pointe d'insertion montรฉe dans une partie creuse de la tige 40. Un renflement interne est alors amรฉnagรฉ ร  l'extrรฉmitรฉ de la tige 40 pour coopรฉrer avec la pointe d'insertion, afin de clipper la collerette 44 dans la tige 40. D'autres modes de fixation des collerettes 44 peuvent รชtre envisagรฉs, comme par exemple par collage, soudage, ou encore par chassage. Ces derniรจres font office d'รฉlรฉments 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 agencรฉs 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 maniรจre ร  limiter les jeux et assurer un bon contact du pointeau dans la piste 42 de la tige 40. Le pointeau 31 permet รฉgalement de verrouiller la tige en position rรฉtractรฉe, ce dernier coopรฉrant avec l'encoche 43, sur la base du L, de maniรจre ร  maintenir la tige 40 en position rรฉtractรฉe.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 รชtre dรฉlogรฉe 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 รฉvidemment, l'homme du mรฉtier du mรฉtier 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 prรฉsentant une ouverture 210 sensiblement rectangulaire pour recevoir le mรฉplat 41 de la tige 40, la hauteur et la longueur de l'ouverture 210 correspondant ร  la hauteur et ร  la longueur des mรฉplats 41 de la barrette 4. Le logement 200 est rรฉalisรฉ dans l'insert 20 du brin de bracelet. Le logement 200 se prรฉsente sous la forme d'un logement ouvert formรฉ par une rainure cylindrique usinรฉe 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 mรฉplat 41 pour correspondre ร  la forme du logement. On peut ainsi observer sur la vue en coupe de la figure 4 que la rainure 211 prรฉsente 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 rรฉalisation prรฉfรฉrentiel illustrรฉ ร  la figure 1, la corne 3 comprend des premiรจres parois latรฉrales 10 verticales dans lesquelles est prรฉvue une excavation cylindrique 11 pour y loger partiellement les collerettes 44. Les collerettes 44 prenant ici une forme de prรฉfรฉrence 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 boรฎtier 1 comme illustrรฉ aux figures 2a et 2b, on exerce une pression sur la ou les tiges 40 jusqu'ร  ce que le pointeau 31 vienne en butรฉe contre la paroi de la piste de guidage 42, puis on fait pivoter la ou les tiges selon un angle dรฉfini par la piste de guidage, ici dรฉfini par la longueur de la base du L formรฉ par la piste, et on relรขche la pression exercรฉe sur la ou les tiges pour que le ressort 5 repousse la ou les tiges 40 qui passeront alors en position dรฉployรฉe. Une telle cinรฉmatique est visible ร  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 ร  l'extrรฉmitรฉ d'un brin, au niveau de la barrette 4 en prรฉsentant l'ouverture 210 du logement 200 face aux mรฉplats 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 opรฉrations inverse, c'est-ร -dire exercer une pression sur la ou les tiges jusqu'ร  ce que le pointeau 31 viennent en butรฉ 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 relรขche la pression exercรฉe 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 รชtre dรฉlogรฉ comme on peut l'observer ร  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 agencรฉe sur sa face extรฉrieure, ร  savoir la face visible par le porteur de la montre, pour coopรฉrer avec un outil ou le doigt du porteur afin de faciliter la manipulation de la collerette 44 et le verrouillage et/ou dรฉverrouillage 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 รฉpouse la forme de la corne mรฉdiane 10 de faรงon ร  limiter les jeux lors de l'assemblage et procurer un assemblage de bonne qualitรฉ.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 rรฉalisation prรฉcรฉdemment dรฉcrit, l'insert est disposรฉ sur un bracelet constituรฉ en cuir, en tissu synthรฉtique, en plastique, en mรฉtal, en cรฉramique ou encore en composite. De mรชme la barrette 4 est de prรฉfรฉrence en mรฉtal mais pourrait รฉgalement รชtre en plastique, cรฉramique 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.

Grรขce ร  ces diffรฉrents aspects de l'invention, on dispose d'un dispositif de fixation d'un bracelet sรปr permettant de changer de bracelet aisรฉment 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 prรฉsente invention ne se limite pas ร  l'exemple illustrรฉ et est susceptible de diverses variantes et modifications qui apparaรฎtront ร  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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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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CN205958940U (en) * 2016-08-01 2017-02-15 ๅฎ‰ๅพฝๅŽ็ฑณๆ™บ่ƒฝ็ง‘ๆŠ€ๆœ‰้™ๅ…ฌๅธ Table ear structure
JP1624218S (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
EP3798742A1 (en) * 2019-09-24 2021-03-31 ETA SA Manufacture Horlogรจre Suisse Device for connecting case body and lugs for a watch
CN110703585B (en) * 2019-11-11 2021-03-16 ๅˆ่‚ฅ็››ไธœไฟกๆฏ็ง‘ๆŠ€ๆœ‰้™ๅ…ฌๅธ 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 ใ‚ปใ‚คใ‚ณใƒผใ‚จใƒ—ใ‚ฝใƒณๆ ชๅผไผš็คพ band and watch
CN112826188A (en) * 2021-02-24 2021-05-25 ๆทๅผ€้€š่ฎฏ(ๆทฑๅœณ)ๆœ‰้™ๅ…ฌๅธ Combined watchband and watch
JP2023045044A (en) * 2021-09-21 2023-04-03 ใ‚ซใ‚ทใ‚ช่จˆ็ฎ—ๆฉŸๆ ชๅผไผš็คพ Connected body and watch
CN114698907B (en) * 2022-03-11 2024-04-05 ๆทฑๅœณๅธ‚่‰พ่ฏบๆ™บ่ƒฝ็ง‘ๆŠ€ๆœ‰้™ๅ…ฌๅธ Watch with replaceable watchband

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

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