EP4024138A1 - Fixing device for a bracelet - Google Patents

Fixing device for a bracelet Download PDF

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Publication number
EP4024138A1
EP4024138A1 EP20217855.4A EP20217855A EP4024138A1 EP 4024138 A1 EP4024138 A1 EP 4024138A1 EP 20217855 A EP20217855 A EP 20217855A EP 4024138 A1 EP4024138 A1 EP 4024138A1
Authority
EP
European Patent Office
Prior art keywords
insert
pivot
bracelet
diameter
cylindrical body
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.)
Pending
Application number
EP20217855.4A
Other languages
German (de)
French (fr)
Inventor
Olivier Silvant
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Omega SA
Original Assignee
Omega SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Omega SA filed Critical Omega SA
Priority to EP20217855.4A priority Critical patent/EP4024138A1/en
Priority to US17/532,593 priority patent/US11723444B2/en
Priority to JP2021199814A priority patent/JP7270712B2/en
Priority to KR1020210182153A priority patent/KR102654435B1/en
Priority to CN202111645666.9A priority patent/CN114680433A/en
Publication of EP4024138A1 publication Critical patent/EP4024138A1/en
Pending legal-status Critical Current

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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

Definitions

  • the present invention relates to the field of watchmaking or jewelry. It relates more specifically to a device for attaching a bracelet to an object, in particular a watch case.
  • bracelets made of leather or metal, are attached to the lugs 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 facing each other in the lugs of the case.
  • Such devices usually comprise 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 one of the pistons, as described in the patent CH 327 838 . The finger is up sliding through an axial slot made in the tube, and its movement along the slot allows one of the pistons to be pushed back inside the tube.
  • the patent CH 614 589 describes a watch case with a device for attaching a bracelet to the case, the central horn has a cylindrical passage split longitudinally over the entire length of the horn, allowing the introduction of a bar for attaching a bracelet .
  • the bar is in the form of a cylinder with a flat along its entire length so as to allow the bar to pass when it is introduced into the passage and to hold it in place when the latter occupies a determined angular position.
  • the fixing devices thus described are generally used for interchangeable bracelets, which they allow to be replaced at the discretion 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 making of an opening at the level of the tube, or the transformation of the pistons. These changes lead to significant additional manufacturing costs.
  • These fastening devices also comprise a prominent element, namely the actuating member, which can catch on or injure the wearer of the watch.
  • the present invention makes it possible to overcome these drawbacks, by proposing a device for attaching a strap to a watch case, the device comprising said watch case and said strap, said strap being secured to the watch case by means of at least one central horn, and on the other hand at least one insert secured to the end of a bracelet, the insert having a recess of shape complementary to the horn to cooperate by interlocking by constituting removable assembly means capable of to make the bracelet interchangeable.
  • the insert comprises at least one movable pivot mounted in the insert and partially projecting into the recess of the insert, the movable pivot being arranged to engage in a corresponding hole of the horn, and the device comprises manipulation means integral with the movable pivot so as to pass from a first position, called manipulation position, in which the pivot is free to move and the strand can be mounted and/or dismounted, towards a second position, said rest position, in which the pivot is immobile in translation and the bracelet strand is locked on the watch case.
  • manipulation position in which the pivot is free to move and the strand can be mounted and/or dismounted
  • the figure 1 illustrates a wristwatch as well as detailed views of the device for attaching the wristband to the watchcase 1 according to a preferred embodiment of the invention.
  • the device for fixing the bracelet strand 2 to the watch case 1 comprises on the one hand a horn 10 secured to the watch case 10 by means of at least one horn secured to the case, and on the other hand an insert 20 secured to the end of the bracelet strand 2, the horn 10 and the insert 20 being complementary to cooperate by interlocking or clipping one into the other by constituting removable assembly means capable of making the bracelet interchangeable.
  • the insert 20 comprises at least one movable pivot 23 mounted in a passage formed in the insert 20, the passage being close to the free end of the insert.
  • the pivot 23 is partially projecting in a recess 3 of the insert, the movable pivot 23 being arranged to engage in a corresponding hole 11 of the horn 10.
  • the device according to the invention comprises manipulation means integral with the movable pivot 23 so as to pass from a first position, called manipulation position, in which said pivot 23 is free to move and the strand 2 can be mounted and/ or disassembled, to a second position, called the rest position, in which said pivot 23 is immobile in translation and the bracelet strand is locked on the watch case.
  • the watch case 1 comprises a central lug 10 comprising a hole 11 on either side and whose diameter corresponds to the diameter of the pivot 23 so that the latter can rotate freely in the hole.
  • the middle horn comprises a slope 12 guiding the pivot to the hole 11.
  • the insert 20 comprises at least one pivot, the pivot being constrained by return means 4 such as a helical spring.
  • the insert 20 comprises two movable pivots arranged on either side so that each of the pivots opens into the recess 3 of the insert 20.
  • the recess 3 is in U shape, of course the latter can adopt any other type of shape, such as a parallelepiped, hemispherical or even elliptical shape, to adapt to the shape of the horn of the watch case.
  • the insert 20 can equally well be made of metal or metal alloy, of technical ceramic, of composite material or even of plastic material according to the needs of those skilled in the art.
  • the handling means are arranged to pivot from a rest position to a handling position, and comprise a cylindrical body 21 and a handling fin 22 secured to the cylindrical body 21, the cylindrical body 21 being housed in a passage formed in the insert 20 and the fin 22 resting against the edge of the insert 20 to be able to manipulate the means manually.
  • the manipulation fin 22 is parallel to the insert 20 in the rest position, and is perpendicular to the insert 20 in the manipulation position, the manipulation fin 22 passing from one position to the other via a 90 degree rotation. Such an angle of rotation makes it possible to easily manipulate the fin 22 using the fingers.
  • the insert 20 comprises at least one ball catch 6 arranged to cooperate with an orifice 220 of the manipulation fin 22 and lock the latter in the rest position when the watch is worn or the bracelet is not used.
  • the cylindrical body 21 is hollow and is arranged to receive a movable pivot 23, the pivot 23 being able to pivot freely within the cylindrical body 21.
  • the cylindrical body 21 successively comprises a first bore 24 of a first diameter D1, a second bore 25 of a diameter D2, and a third bore 26 of a diameter D3, the diameters D1 and D3 being greater than the diameter D2.
  • the three bores form a through hole with a reduction in diameter in the center.
  • the movable pivot 23 comprises a rod 231 and a head 230, the rod 231 having a diameter slightly smaller than the diameter D2 and successively passing through the third, second and first bores 26, 25, 24.
  • the head 230 has a diameter slightly smaller than the diameter D3 so as to rest in the third bore 26 and against the second bore 25 which acts as an abutment for the head 230.
  • the pivot 23 is inserted into the handling means by the third bore 26 until it stops.
  • the head 230 of the pivot is flush with the surface of the fin 22, so as to make the device as discreet as possible.
  • the first bore 24 is arranged to receive the return means 4, the return means 4 being mounted around the rod 231 and held in the first bore 24 by means of a key 5.
  • the key 5 is mounted on the pivot rod so as to compress the return means and hold the head 230 of the pivot in the third bore 26.
  • the key 5 has dimensions smaller than the diameter D1 of the first bore 24 so as to be able to enter the first bore 24 when the pivot is compressed.
  • the pivot bears against the slope 12 of the horn 10, which has the effect of pushing on the rod 231 and of compressing the spring 4 until the rod enters the hole 11, the pivot then resuming its rest position following the return effect of the spring 4.
  • Such an assembly makes it possible, on the one hand, to maintain the pivot in position when it is inserted into the hole 11 thanks to the return means, and on the other hand to be able to take it out of the hole 10 if necessary via the handling means thanks to the head 230 which is supported against the second bore 25.
  • the person skilled in the art could also consider replacing the assembly formed by the rod and key by a screw screwed into the head 230 of the pivot 23.
  • the fixing device also comprises means for holding and locking the handling means.
  • These holding and locking means comprise a pin 27 mounted in the insert perpendicular to the direction of the bracelet strand.
  • This pin 27 is arranged to cooperate with a peripheral groove 28 formed on the outside of the cylindrical body 21, close to the fin, so as to maintain the handling means in the insert, the pin 27 and the groove 28 forming axial retaining means.
  • the cylindrical body 21 comprises, in the immediate vicinity of the peripheral groove 28, a flat 29 so that the cylindrical body can be moved in translation when the flat and the pin are aligned.
  • the flat 29 is positioned angularly on the cylindrical body so that the flat and the pin are aligned following a rotation of the handling element to bring it into the handling position.
  • the wearer of the watch rotates the handling fin 22 from its rest position to its handling position by rotating 90 degrees, this rotation has the effect of positioning the flat 29 facing the pin 27.
  • the wearer can then pull on the fin 22 to move the latter in translation and bring out the rod 231 of the pivot 23 from the hole 11 of the horn, and then disengage the bracelet from the horn.
  • the wearer retracts the fin 22 by pressing on it until it is in contact with the insert 20 and rotates it again so as to place it parallel to the insert 20 and lock it in position using the ball pawl 6.
  • the insert is connected to a bracelet strand 2 which can be made of leather, synthetic fabric, plastic, metal, ceramic or even composite.
  • a device for fixing a reliable strap enabling the strap to be changed easily and quickly.

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

Abstract

L'invention concerne 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'une corne, et d'autre part un insert solidaire de l'extrémité d'un bracelet, la barrette et l'insert étant complémentaires pour coopérer par emboîtement en constituant des moyens d'assemblage amovibles pour rendre le bracelet interchangeable. Selon l'invention, l'insert comprend un pivot mobile monté dans l'insert, ledit pivot mobile étant agencé pour s'engager dans un trou correspondant de la corne, le dispositif comprenant des moyens de manipulation solidaires du pivot mobile de manière à passer d'une première position dans laquelle ledit pivot est libre de se déplacer et le brin peut être monté et/ou démonté, vers une seconde position dans laquelle ledit pivot est immobile en translation et le brin de bracelet est verrouillé sur la boîte de montre.The invention relates to 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 a lug, and on the other hand an insert secured to the end of a bracelet, the bar and the insert being complementary to cooperate by interlocking by constituting removable assembly means to make the bracelet interchangeable. According to the invention, the insert comprises a movable pivot mounted in the insert, said movable pivot being arranged to engage in a corresponding hole of the horn, the device comprising handling means integral with the movable pivot so as to pass from a first position in which said pivot is free to move and the strand can be mounted and/or dismounted, to a second position in which said pivot is immobile in translation and the bracelet strand is locked on the watch case.

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 specifically to a device for attaching a bracelet to an object, in particular a watch case.

Arrière-plan de l'inventionBackground of the invention

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, bracelets, made of leather or metal, are attached to the lugs 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 facing each other in the lugs of the case.

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 case, 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 may prove to be inconvenient. This is why wristbands provided with such a fixing device are generally permanently attached to the box.

Il existe par ailleurs des dispositifs de fixation permettant de désolidariser le bracelet de la boîte sans recourir à un outil. De tels dispositifs comportent habituellement une barrette, du type décrit précédemment, sur laquelle est monté, traversant le tube, un organe d'actionnement des pistons. Ledit organe d'actionnement est, par exemple, un doigt radial solidaire d'un des pistons, tel que décrit dans le brevet CH 327 838 . Le doigt est monté coulissant à travers une fente axiale pratiquée dans le tube, et son déplacement le long de la fente permet de repousser l'un des pistons à l'intérieur du tube.There are also fixing devices allowing the bracelet to be separated from the case without using a tool. Such devices usually comprise 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 one of the pistons, as described in the patent CH 327 838 . The finger is up sliding through an axial slot made in the tube, and its movement along the slot allows one of the pistons to be pushed back inside the tube.

Le brevet CH 614 589 décrit une boîte de montre avec un dispositif de fixation d'un bracelet à la boîte, la corne centrale présente un passage cylindrique fendu longitudinalement sur toute la longueur de la corne, permettant l'introduction d'une barrette pour la fixation d'un bracelet. La barrette se présente sous la forme d'un cylindre avec un méplat sur toute sa longueur de manière à laisser passer la barrette lors de son introduction dans le passage et la maintenir en place lorsque celle-ci occupe une position angulaire déterminée.The patent CH 614 589 describes a watch case with a device for attaching a bracelet to the case, the central horn has a cylindrical passage split longitudinally over the entire length of the horn, allowing the introduction of a bar for attaching a bracelet . The bar is in the form of a cylinder with a flat along its entire length so as to allow the bar to pass when it is introduced 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 fixing devices thus described are generally used for interchangeable bracelets, which they allow to be replaced at the discretion 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 making of an opening at the level of the tube, or the transformation of the pistons. These changes lead to significant additional manufacturing costs. These fastening devices also comprise 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 ladite boîte de montre et ledit bracelet, ledit bracelet étant solidaire de la boîte de montre par le biais d'au moins une corne centrale, et d'autre part au moins un insert solidaire de l'extrémité d'un bracelet, l'insert présentant un évidement de forme complémentaire à la corne pour coopérer par emboîtement en constituant des moyens d'assemblage amovibles aptes à rendre le bracelet interchangeable.The present invention makes it possible to overcome these drawbacks, by proposing a device for attaching a strap to a watch case, the device comprising said watch case and said strap, said strap being secured to the watch case by means of at least one central horn, and on the other hand at least one insert secured to the end of a bracelet, the insert having a recess of shape complementary to the horn to cooperate by interlocking by constituting removable assembly means capable of to make the bracelet interchangeable.

Selon l'invention, l'insert comprend au moins un pivot mobile monté dans l'insert et partiellement saillant dans l'évidement de l'insert, le pivot mobile étant agencé pour s'engager dans un trou correspondant de la corne, et le dispositif comprend des moyens de manipulation solidaires du pivot mobile de manière à passer d'une première position, dite position de manipulation, dans laquelle le pivot est libre de se déplacer et le brin peut être monté et/ou démonté, vers une seconde position, dite position de repos, dans laquelle le pivot est immobile en translation et le brin de bracelet est verrouillé sur la boîte de montre.According to the invention, the insert comprises at least one movable pivot mounted in the insert and partially projecting into the recess of the insert, the movable pivot being arranged to engage in a corresponding hole of the horn, and the device comprises manipulation means integral with the movable pivot so as to pass from a first position, called manipulation position, in which the pivot is free to move and the strand can be mounted and/or dismounted, towards a second position, said rest position, in which the pivot is immobile in translation and the bracelet strand is locked on the watch case.

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

  • lesdits moyens de manipulation sont agencés pour pivoter et comprennent un corps cylindrique et une ailette de manipulation solidaire du corps cylindrique, ledit corps cylindrique logeant dans un passage de l'insert et l'ailette reposant contre le bord de l'insert ;
  • le corps cylindrique est creux et est agencé pour recevoir l'au moins un pivot mobile ;
  • le corps cylindrique creux comprend successivement un premier logement d'un premier diamètre D1, un deuxième logement d'un diamètre D2, et un troisième logement d'un diamètre D3, les diamètres D2 et D3 étant supérieurs au diamètre D2 ;
  • l'au moins un pivot mobile comprend une tige et une tête, ladite tige présentant un diamètre légèrement inférieur au diamètre D2 et traversant successivement les troisième, deuxième et premier logements, et la tête présentant un diamètre légèrement inférieur au diamètre D3 de manière à reposer dans le troisième logement ;
  • le premier logement est agencé pour recevoir des moyens de rappel tels qu'un ressort hélicoïdal, lesdits moyens de rappel étant montés autour de la tige et maintenus dans le premier logement au moyen d'une clavette montée sur la tige du pivot de manière à maintenir la tête du pivot dans le troisième logement ;
  • la clavette présente des dimensions inférieures au diamètre D1 du premier logement de manière que les moyens de rappel puissent être comprimés lors d'une translation du pivot ;
  • l'insert comprend une goupille agencée pour coopérer avec une rainure périphérique formée sur l'extérieur du corps cylindrique de manière à maintenir les moyens de manipulation dans l'insert ;
  • le corps cylindrique comprend à proximité immédiate de la rainure périphérique un méplat de manière que le corps cylindrique puisse être déplacé en translation ;
  • l'insert comprend au moins un cliquet à bille agencé pour coopérer avec l'ailette de manipulation et la verrouiller dans la seconde position ;
  • l'ailette de manipulation est parallèle à l'insert dans la position de repos, et est perpendiculaire à l'insert dans la position de manipulation, l'ailette de manipulation passant d'une position à l'autre via une rotation de 90 degrés ;
  • l'insert comprend un évidement en forme de U.
In accordance with other advantageous variants of the invention:
  • said handling means are arranged to pivot and comprise a cylindrical body and a handling fin secured to the cylindrical body, said cylindrical body being housed in a passage of the insert and the fin resting against the edge of the insert;
  • the cylindrical body is hollow and is arranged to receive the at least one movable pivot;
  • the hollow cylindrical body successively comprises a first housing with a first diameter D1, a second housing with a diameter D2, and a third housing with a diameter D3, the diameters D2 and D3 being greater than the diameter D2;
  • the at least one movable pivot comprises a rod and a head, said rod having a diameter slightly less than the diameter D2 and passing successively through the third, second and first housings, and the head having a diameter slightly less than the diameter D3 so as to rest in the third dwelling;
  • the first housing is arranged to receive return means such as a coil spring, said return means being mounted around the rod and held in the first housing by means a key mounted on the pivot rod so as to hold the pivot head in the third housing;
  • the key has dimensions smaller than the diameter D1 of the first housing so that the return means can be compressed during a translation of the pivot;
  • the insert comprises a pin arranged to cooperate with a peripheral groove formed on the outside of the cylindrical body so as to hold the handling means in the insert;
  • the cylindrical body comprises in the immediate vicinity of the peripheral groove a flat so that the cylindrical body can be moved in translation;
  • the insert comprises at least one ball pawl arranged to cooperate with the manipulation fin and lock it in the second position;
  • the manipulation fin is parallel to the insert in the rest position, and is perpendicular to the insert in the manipulation position, the manipulation fin moving from one position to the other via a rotation of 90 degrees ;
  • the insert includes a U-shaped recess.

Description sommaire des dessinsBrief description of the drawings

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

  • la figure 1 illustre une vue en perspective d'une boîte de montre équipée d'un dispositif de fixation selon l'invention ;
  • les figures 2a et 2b illustrent des vues en coupe d'un dispositif de fixation selon l'invention équipant une boîte de montre avant et après la mise en place ;
  • les figures 3a à 3c sont des vues en perspective en transparence d'un dispositif de fixation conforme à l'invention.
Other characteristics and advantages of the present invention will emerge more clearly from the detailed description which follows of an example embodiment of a device for fixing a wristband according to the invention, this example being given for purely illustrative purposes and not limiting only, in conjunction with the attached drawing on which:
  • the figure 1 illustrates a perspective view of a watch case equipped with a fixing device according to the invention;
  • them figures 2a and 2b illustrate sectional views of a fixing device according to the invention fitted to a watch case before and after installation;
  • them figures 3a to 3c are perspective views in transparency of a fixing device according to the invention.

Description détaillée des modes de réalisation préférésDetailed Description of Preferred Embodiments

La figure 1 illustre une montre bracelet ainsi que des vues détaillées du dispositif d'attache du bracelet à la boîte de montre 1 selon un mode de réalisation préférentiel de l'invention. Le dispositif de fixation du brin de bracelet 2 à la boîte de montre 1 comprend d'une part une corne 10 solidaire de la boîte de montre10 par le biais d'au moins une corne solidaire de la boîte, et d'autre part un insert 20 solidaire de l'extrémité du brin bracelet 2, la corne 10 et l'insert 20 étant complémentaires pour coopérer par emboitement ou clippage l'un dans l'autre en constituant des moyens d'assemblage amovibles aptes à rendre le bracelet interchangeable.The figure 1 illustrates a wristwatch as well as detailed views of the device for attaching the wristband to the watchcase 1 according to a preferred embodiment of the invention. The device for fixing the bracelet strand 2 to the watch case 1 comprises on the one hand a horn 10 secured to the watch case 10 by means of at least one horn secured to the case, and on the other hand an insert 20 secured to the end of the bracelet strand 2, the horn 10 and the insert 20 being complementary to cooperate by interlocking or clipping one into the other by constituting removable assembly means capable of making the bracelet interchangeable.

Tel qu'illustré aux figures 2a et 2b, l'insert 20 comprend au moins un pivot mobile 23 monté dans un passage formé dans l'insert 20, le passage étant à proximité de l'extrémité libre de l'insert. Avantageusement, le pivot 23 est partiellement saillant dans un évidement 3 de l'insert, le pivot mobile 23 étant agencé pour s'engager dans un trou 11 correspondant de la corne 10.As illustrated in figures 2a and 2b , the insert 20 comprises at least one movable pivot 23 mounted in a passage formed in the insert 20, the passage being close to the free end of the insert. Advantageously, the pivot 23 is partially projecting in a recess 3 of the insert, the movable pivot 23 being arranged to engage in a corresponding hole 11 of the horn 10.

Le dispositif selon l'invention comprend des moyens de manipulation solidaires du pivot mobile 23 de manière à passer d'une première position, dite position de manipulation, dans laquelle ledit pivot 23 est libre de se déplacer et le brin 2 peut être monté et/ou démonté, vers une seconde position, dite position de repos, dans laquelle ledit pivot 23 est immobile en translation et le brin de bracelet est verrouillé sur la boîte de montre.The device according to the invention comprises manipulation means integral with the movable pivot 23 so as to pass from a first position, called manipulation position, in which said pivot 23 is free to move and the strand 2 can be mounted and/ or disassembled, to a second position, called the rest position, in which said pivot 23 is immobile in translation and the bracelet strand is locked on the watch case.

Comme on peut l'observer aux figure 2a à 2b, la boite de montre 1 comprend une corne médiane 10 comprenant un trou 11 de part et d'autre et dont le diamètre correspond au diamètre du pivot 23 de manière que celui-ci puisse tourner librement dans le trou. De manière à faciliter l'insertion de l'au moins un pivot 23 dans le trou 11, la corne médiane comprend une pente 12 guidant le pivot jusqu'au trou 11.As can be observed at figure 2a to 2b , the watch case 1 comprises a central lug 10 comprising a hole 11 on either side and whose diameter corresponds to the diameter of the pivot 23 so that the latter can rotate freely in the hole. In order to facilitate the insertion of at least one pivot 23 into the hole 11, the middle horn comprises a slope 12 guiding the pivot to the hole 11.

Selon l'invention, l'insert 20 comprend au moins un pivot, le pivot étant contraint par des moyens de rappel 4 tels qu'un ressort hélicoïdal. Comme illustré sur les figures, l'insert 20 comprend deux pivots mobiles disposé de part et d'autre de manière que chacun des pivots débouche dans l'évidement 3 de l'insert 20. Tel qu'illustré, l'évidement 3 est en forme de U, bien évidemment ce dernier peut adopter toute autre type de forme, telle qu'une forme parallélépipédique, hémisphérique ou encore elliptique, pour s'adapter à la forme de la corne de la boîte de montre.According to the invention, the insert 20 comprises at least one pivot, the pivot being constrained by return means 4 such as a helical spring. As illustrated in the figures, the insert 20 comprises two movable pivots arranged on either side so that each of the pivots opens into the recess 3 of the insert 20. As illustrated, the recess 3 is in U shape, of course the latter can adopt any other type of shape, such as a parallelepiped, hemispherical or even elliptical shape, to adapt to the shape of the horn of the watch case.

L'insert 20 peut aussi bien être réalisé en métal ou alliage métallique, en céramique technique, en matériau composite ou encore en matière plastique selon les besoins de l'homme du métier.The insert 20 can equally well be made of metal or metal alloy, of technical ceramic, of composite material or even of plastic material according to the needs of those skilled in the art.

Selon l'invention, les moyens de manipulation sont agencés pour pivoter d'une position de repos à une position de manipulation, et comprennent un corps cylindrique 21 et une ailette de manipulation 22 solidaire du corps cylindrique 21, le corps cylindrique 21 logeant dans un passage formé dans l'insert 20 et l'ailette 22 reposant contre le bord de l'insert 20 pour pouvoir manipuler les moyens manuellement.According to the invention, the handling means are arranged to pivot from a rest position to a handling position, and comprise a cylindrical body 21 and a handling fin 22 secured to the cylindrical body 21, the cylindrical body 21 being housed in a passage formed in the insert 20 and the fin 22 resting against the edge of the insert 20 to be able to manipulate the means manually.

L'ailette de manipulation 22 est parallèle à l'insert 20 dans la position de repos, et est perpendiculaire à l'insert 20 dans la position de manipulation, l'ailette de manipulation 22 passant d'une position à l'autre via une rotation de 90 degrés. Un tel angle de rotation permet de manipuler facilement l'ailette 22 à l'aide des doigts.The manipulation fin 22 is parallel to the insert 20 in the rest position, and is perpendicular to the insert 20 in the manipulation position, the manipulation fin 22 passing from one position to the other via a 90 degree rotation. Such an angle of rotation makes it possible to easily manipulate the fin 22 using the fingers.

Avantageusement, l'insert 20 comprend au moins un cliquet à bille 6 agencé pour coopérer avec un orifice 220 de l'ailette de manipulation 22 et verrouiller cette dernière dans la position de repos lorsque la montre est portée ou que le bracelet n'est pas utilisé.Advantageously, the insert 20 comprises at least one ball catch 6 arranged to cooperate with an orifice 220 of the manipulation fin 22 and lock the latter in the rest position when the watch is worn or the bracelet is not used.

Comme on peut l'observer au figures 2a et 2b, le corps cylindrique 21 est creux et est agencé pour recevoir un pivot mobile 23, le pivot 23 pouvant pivoter librement au sein du corps cylindrique 21. Le corps cylindrique 21 comprend successivement un premier alésage 24 d'un premier diamètre D1, un deuxième alésage 25 d'un diamètre D2, et un troisième alésage 26 d'un diamètre D3, les diamètres D1 et D3 étant supérieurs au diamètre D2. Ainsi, les trois alésages forment un trou traversant avec une réduction du diamètre au centre.As can be observed at figures 2a and 2b , the cylindrical body 21 is hollow and is arranged to receive a movable pivot 23, the pivot 23 being able to pivot freely within the cylindrical body 21. The cylindrical body 21 successively comprises a first bore 24 of a first diameter D1, a second bore 25 of a diameter D2, and a third bore 26 of a diameter D3, the diameters D1 and D3 being greater than the diameter D2. Thus, the three bores form a through hole with a reduction in diameter in the center.

Le pivot mobile 23 comprend une tige 231 et une tête 230, la tige 231 présentant un diamètre légèrement inférieur au diamètre D2 et traversant successivement les troisième, deuxième et premier alésages 26, 25, 24. La tête 230 présente un diamètre légèrement inférieur au diamètre D3 de manière à reposer dans le troisième alésage 26 et contre le deuxième alésage 25 qui fait office de butée pour la tête 230. Ainsi, le pivot 23 est inséré dans les moyens de manipulation par le troisième alésage 26 jusqu'en butée. Avantageusement, la tête 230 du pivot affleure avec la surface de l'ailette 22, de manière à rendre le dispositif le plus discret possible.The movable pivot 23 comprises a rod 231 and a head 230, the rod 231 having a diameter slightly smaller than the diameter D2 and successively passing through the third, second and first bores 26, 25, 24. The head 230 has a diameter slightly smaller than the diameter D3 so as to rest in the third bore 26 and against the second bore 25 which acts as an abutment for the head 230. Thus, the pivot 23 is inserted into the handling means by the third bore 26 until it stops. Advantageously, the head 230 of the pivot is flush with the surface of the fin 22, so as to make the device as discreet as possible.

Selo l'invention, le premier alésage 24 est agencé pour recevoir les moyens de rappel 4, les moyens de rappel 4 étant montés autour de la tige 231 et maintenus dans le premier alésage 24 au moyen d'une clavette 5. La clavette 5 est montée sur la tige du pivot de manière à comprimer les moyens de rappel et maintenir la tête 230 du pivot dans le troisième alésage 26.According to the invention, the first bore 24 is arranged to receive the return means 4, the return means 4 being mounted around the rod 231 and held in the first bore 24 by means of a key 5. The key 5 is mounted on the pivot rod so as to compress the return means and hold the head 230 of the pivot in the third bore 26.

Avantageusement, la clavette 5 présente des dimensions inférieures au diamètre D1 du premier alésage 24 de manière à pouvoir rentrer dans le premier alésage 24 lorsque le pivot est comprimé. Lors du montage, le pivot est en appui contre la pente 12 de la corne 10, ce qui a pour effet de pousser sur la tige 231 et de comprimer le ressort 4 jusqu'à ce que la tige entre dans le trou 11, le pivot reprenant alors sa position de repos suite à l'effet de rappel du ressort 4. Un tel montage permet d'une part, de maintenir le pivot en position lorsqu'il est inséré dans le trou 11 grâce aux moyens de rappel, et d'autre part de pouvoir le sortir du trou 10 au besoin via les moyens de manipulation grâce à la tête 230 qui est appui contre le deuxième alésage 25. L'homme du métier pourrait également envisager de remplacer l'ensemble formé par la tige et clavette par une vis vissée dans la tête 230 du pivot 23.Advantageously, the key 5 has dimensions smaller than the diameter D1 of the first bore 24 so as to be able to enter the first bore 24 when the pivot is compressed. During assembly, the pivot bears against the slope 12 of the horn 10, which has the effect of pushing on the rod 231 and of compressing the spring 4 until the rod enters the hole 11, the pivot then resuming its rest position following the return effect of the spring 4. Such an assembly makes it possible, on the one hand, to maintain the pivot in position when it is inserted into the hole 11 thanks to the return means, and on the other hand to be able to take it out of the hole 10 if necessary via the handling means thanks to the head 230 which is supported against the second bore 25. The person skilled in the art could also consider replacing the assembly formed by the rod and key by a screw screwed into the head 230 of the pivot 23.

Le dispositif de fixation selon l'invention comprend également des moyens de maintien et de verrouillage des moyens de manipulation. Ces moyens de maintien et de verrouillage comprennent une goupille 27 montée dans l'insert perpendiculairement à la direction du brin de bracelet. Cette goupille 27 est agencée pour coopérer avec une rainure périphérique 28 formée sur l'extérieur du corps cylindrique 21, à proximité de l'ailette, de manière à maintenir les moyens de manipulation dans l'insert, la goupille 27 et la rainure 28 formant des moyens de retenue axiale.The fixing device according to the invention also comprises means for holding and locking the handling means. These holding and locking means comprise a pin 27 mounted in the insert perpendicular to the direction of the bracelet strand. This pin 27 is arranged to cooperate with a peripheral groove 28 formed on the outside of the cylindrical body 21, close to the fin, so as to maintain the handling means in the insert, the pin 27 and the groove 28 forming axial retaining means.

Avantageusement, le corps cylindrique 21 comprend, à proximité immédiate de la rainure périphérique 28, un méplat 29 de manière que le corps cylindrique puisse être déplacé en translation lorsque le méplat et la goupille sont alignés. Le méplat 29 est positionné angulairement sur le corps cylindrique de manière que le méplat et la goupille sont alignés suite à une rotation de l'élément de manipulation pour l'amener en position de manipulation.Advantageously, the cylindrical body 21 comprises, in the immediate vicinity of the peripheral groove 28, a flat 29 so that the cylindrical body can be moved in translation when the flat and the pin are aligned. The flat 29 is positioned angularly on the cylindrical body so that the flat and the pin are aligned following a rotation of the handling element to bring it into the handling position.

Pour fixer le bracelet 2 au boîtier 1 comme illustré à la figure 1, le porteur place l'insert 20 à proximité de la corne médiane 10, en présentant la partie saillante des pivots au niveau des pentes 12 de la corne 10. Le porteur engage ensuite les pivots contre les pentes qui font office de moyens de guidage, et ce qui a pour effet de rétracter les deux pivots. Le porteur continue le mouvement jusqu'à ce que les pivots s'engagent dans les deux trous 11 de la corne 10, les pivots reprenant leur position de repos sous l'action des moyens de rappel 4. Un « clic » permet le positionnement du bracelet lorsque les pivots 3 sont engagés dans les trous 10, empêchant le bracelet de tomber, et facilitant le verrouillage du bracelet sans exercer de pression sur celui-ci. Le brin de bracelet 2 est alors verrouillé sur la boîte de montre 1, les pivots 23 ne pouvant plus être déplacés en translation pour les sortir des trous 10 de la corne.To attach bracelet 2 to case 1 as shown in figure 1 , the wearer places the insert 20 close to the middle horn 10, presenting the projecting part of the pivots at the level of the slopes 12 of the horn 10. The wearer then engages the pivots against the slopes which act as guide means, and which has the effect of retracting the two pivots. The carrier continues the movement until the pivots engage in the two holes 11 of the horn 10, the pivots resuming their rest position under the action of the return means 4. A "click" allows the positioning of the bracelet when the pivots 3 are engaged in the holes 10, preventing the bracelet from falling, and facilitating the locking of the bracelet without exerting pressure on it. The bracelet strand 2 is then locked on the watchcase 1, the pivots 23 can no longer be moved in translation to take them out of the holes 10 of the lug.

Pour le démontage du bracelet, le porteur de la montre fait pivoter l'ailette de manipulation 22 de sa position de repos vers sa position de manipulation en effectuant une rotation de 90 degrés, cette rotation a pour effet de positionner le méplat 29 face à la goupille 27. Le porteur peut alors tirer sur l'ailette 22 pour déplacer cette dernière en translation et faire sortir la tige 231 du pivot 23 du trou 11 de la corne, et ensuite dégager le bracelet de la corne. Une fois le bracelet dégager de la corne, le porteur rentre les l'ailette 22 en pressant dessus jusqu'à ce qu'elle soit en contact avec l'insert 20 et la fait à nouveau pivoter de manière à la placer parallèlement à l'insert 20 et à la verrouiller en position via le cliquet à bille 6.To remove the bracelet, the wearer of the watch rotates the handling fin 22 from its rest position to its handling position by rotating 90 degrees, this rotation has the effect of positioning the flat 29 facing the pin 27. The wearer can then pull on the fin 22 to move the latter in translation and bring out the rod 231 of the pivot 23 from the hole 11 of the horn, and then disengage the bracelet from the horn. Once the bracelet has been released from the lug, the wearer retracts the fin 22 by pressing on it until it is in contact with the insert 20 and rotates it again so as to place it parallel to the insert 20 and lock it in position using the ball pawl 6.

Dans le mode de réalisation précédemment décrit, l'insert est relié à un brin de bracelet 2 qui peut être constitué en cuir, en tissu synthétique, en plastique, en métal, en céramique ou encore en composite.In the embodiment described above, the insert is connected to a bracelet strand 2 which can be made of leather, synthetic fabric, plastic, metal, 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.By virtue of these various aspects of the invention, there is provided a device for fixing a reliable strap enabling the strap to be changed easily and quickly.

Claims (12)

Dispositif de fixation d'un brin bracelet (2) à une boîte de montre (1), le dispositif comprenant ladite boîte de montre (1) et ledit bracelet (2), ledit bracelet étant solidaire de la boîte de montre (1) par le biais d'au moins une corne (10) centrale, et d'autre part au moins un insert (20) solidaire de l'extrémité d'un bracelet, l'insert (20) présentant un évidement (3) de forme complémentaire à la corne (10) pour coopérer par clippage en constituant des moyens d'assemblage amovibles aptes à rendre le brin de bracelet (2) interchangeable,
caractérisé en ce que l'insert (20) comprend au moins un pivot mobile (23) monté dans l'insert (20), ledit pivot mobile (23) étant agencé pour s'engager dans un trou (11) correspondant de la corne (10), et en ce que le dispositif comprend des moyens de manipulation solidaires du pivot mobile (23) de manière à passer d'une première position, dite position de manipulation, dans laquelle ledit pivot (23) est libre de se déplacer et le brin (2) peut être monté et/ou démonté, vers une seconde position, dite position de repos, dans laquelle ledit pivot (23) est immobile en translation et le brin de bracelet est verrouillé sur la boîte de montre.Device for fixing a bracelet strand (2) to a watch case (1), the device comprising said watch case (1) and said bracelet (2), said bracelet being secured to the watch case (1) by through at least one central lug (10), and on the other hand at least one insert (20) secured to the end of a bracelet, the insert (20) having a recess (3) of complementary shape to the horn (10) to cooperate by clipping by constituting removable assembly means capable of making the bracelet strand (2) interchangeable,
characterized in that the insert (20) comprises at least one movable pivot (23) mounted in the insert (20), said movable pivot (23) being arranged to engage in a corresponding hole (11) of the horn (10), and in that the device comprises manipulation means integral with the movable pivot (23) so as to pass from a first position, called manipulation position, in which said pivot (23) is free to move and the strand (2) can be mounted and/or dismounted, towards a second position, called rest position, in which said pivot (23) is immobile in translation and the bracelet strand is locked on the watch case. Dispositif de fixation selon la revendication 1, caractérisé en ce que lesdits moyens de manipulation sont agencés pour pivoter et comprennent un corps cylindrique (21) et une ailette de manipulation (22) solidaire du corps cylindrique (21), ledit corps cylindrique (21) logeant dans un passage de l'insert (20) et l'ailette (22) reposant contre le bord de l'insert (20).Fixing device according to Claim 1, characterized in that the said handling means are arranged to pivot and comprise a cylindrical body (21) and a handling fin (22) integral with the cylindrical body (21), the said cylindrical body (21) lodged in a passage of the insert (20) and the fin (22) resting against the edge of the insert (20). Dispositif de fixation selon la revendication 2, caractérisé en ce que ledit corps cylindrique (21) est creux et est agencé pour recevoir l'au moins un pivot mobile (23).Fixing device according to Claim 2, characterized in that the said cylindrical body (21) is hollow and is arranged to receive the at least one movable pivot (23). Dispositif de fixation selon les revendications 2 et 3, caractérisé en ce que le corps cylindrique (21) comprend successivement un premier alésage (24) d'un premier diamètre D1, un deuxième alésage (25) d'un diamètre D2, et un troisième alésage (26) d'un diamètre D3, les diamètres D2 et D3 étant supérieurs au diamètre D2.Fastening device according to Claims 2 and 3, characterized in that the cylindrical body (21) comprises successively a first bore (24) of a first diameter D1, a second bore (25) of a diameter D2, and a third bore (26) with a diameter D3, the diameters D2 and D3 being greater than the diameter D2. Dispositif de fixation selon la revendication 4, caractérisé en ce que l'au moins un pivot mobile (23) comprend une tige (231) et une tête (230), ladite tige (231) présentant un diamètre légèrement inférieur au diamètre D2 et traversant successivement les troisième, deuxième et premier alésages (26, 25, 24), et la tête (230) présentant un diamètre légèrement inférieur au diamètre D3 de manière à reposer dans le troisième alésage (26).Fixing device according to Claim 4, characterized in that the at least one mobile pivot (23) comprises a rod (231) and a head (230), the said rod (231) having a diameter slightly less than the diameter D2 and passing through successively the third, second and first bores (26, 25, 24), and the head (230) having a diameter slightly smaller than the diameter D3 so as to rest in the third bore (26). Dispositif de fixation selon l'une des revendications 2 à 5 caractérisé en ce que le premier alésage (24) est agencé pour recevoir des moyens de rappel (4), lesdits moyens de rappel (4) étant montés autour de la tige (231) et maintenus dans le premier alésage (24) au moyen d'une clavette (5) montée sur la tige du pivot de manière à comprimer les moyens de rappel et maintenir la tête (230) du pivot dans le troisième alésage (26).Fastening device according to one of Claims 2 to 5 , characterized in that the first bore (24) is arranged to receive return means (4), the said return means (4) being mounted around the rod (231) and held in the first bore (24) by means of a key (5) mounted on the pivot rod so as to compress the return means and hold the head (230) of the pivot in the third bore (26). Dispositif de fixation selon la revendication 6, caractérisé en ce que ladite clavette (5) présente des dimensions inférieures au diamètre D1 du premier alésage (24) de manière que les moyens de rappel (4) puissent être comprimés lors d'une translation du pivot.Fixing device according to Claim 6, characterized in that the said key (5) has dimensions smaller than the diameter D1 of the first bore (24) so that the return means (4) can be compressed during a translation of the pivot . Dispositif de fixation selon l'une des revendications 2 à 7, caractérisé en ce que l'insert (20) comprend une goupille (27) agencée pour coopérer avec une rainure périphérique (28) formée sur l'extérieur du corps cylindrique (21) de manière à verrouiller les moyens de manipulation dans l'insert.Fastening device according to one of Claims 2 to 7, characterized in that the insert (20) comprises a pin (27) arranged to cooperate with a peripheral groove (28) formed on the outside of the cylindrical body (21) so as to lock the handling means in the insert. Dispositif de fixation selon la revendication 8, caractérisé en ce que ledit corps cylindrique (21) comprend, à proximité immédiate de la rainure périphérique (28), un méplat (29) de manière que le corps cylindrique puisse être déplacé en translation lorsque le méplat et la goupille sont alignés.Fastening device according to Claim 8, characterized in that the said cylindrical body (21) comprises, in the immediate vicinity of the peripheral groove (28), a flat (29) so that the cylindrical body can be moved in translation when the flat and pin are aligned. Dispositif de fixation selon la revendication 2, caractérisé en ce que l'insert (20) comprend au moins un cliquet à bille (6) agencé pour coopérer avec l'ailette de manipulation (22) et la verrouiller dans la position de repos.Fastening device according to Claim 2, characterized in that the insert (20) comprises at least one ball pawl (6) arranged to cooperate with the manipulation fin (22) and lock it in the rest position. Dispositif de fixation selon l'une des revendications 2 à 10, caractérisé en ce que l'ailette de manipulation (22) est parallèle à l'insert (20) dans la position de repos, et est perpendiculaire à l'insert (20) dans la position de manipulation, l'ailette de manipulation (22) passant d'une position à l'autre via une rotation de 90 degrés.Fastening device according to one of Claims 2 to 10, characterized in that the handling fin (22) is parallel to the insert (20) in the rest position, and is perpendicular to the insert (20) in the manipulation position, the manipulation vane (22) moving from one position to the other via a rotation of 90 degrees. Dispositif de fixation selon l'une des revendications 1 à 11, caractérisé en ce que l'insert (20) comprend un évidement (3) en forme de U.Fastening device according to one of Claims 1 to 11, characterized in that the insert (20) comprises a U-shaped recess (3).
EP20217855.4A 2020-12-30 2020-12-30 Fixing device for a bracelet Pending EP4024138A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP20217855.4A EP4024138A1 (en) 2020-12-30 2020-12-30 Fixing device for a bracelet
US17/532,593 US11723444B2 (en) 2020-12-30 2021-11-22 Device for attaching a bracelet
JP2021199814A JP7270712B2 (en) 2020-12-30 2021-12-09 Device for attaching bracelets
KR1020210182153A KR102654435B1 (en) 2020-12-30 2021-12-17 Device for attaching a bracelet
CN202111645666.9A CN114680433A (en) 2020-12-30 2021-12-30 Device for attaching a chain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20217855.4A EP4024138A1 (en) 2020-12-30 2020-12-30 Fixing device for a bracelet

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EP4024138A1 true EP4024138A1 (en) 2022-07-06

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US (1) US11723444B2 (en)
EP (1) EP4024138A1 (en)
JP (1) JP7270712B2 (en)
KR (1) KR102654435B1 (en)
CN (1) CN114680433A (en)

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US11723444B2 (en) 2023-08-15
CN114680433A (en) 2022-07-01
US20220202146A1 (en) 2022-06-30
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KR20220097250A (en) 2022-07-07
KR102654435B1 (en) 2024-04-03
JP2022104877A (en) 2022-07-12

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