EP3333643B1 - Attachment device - Google Patents

Attachment device Download PDF

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Publication number
EP3333643B1
EP3333643B1 EP16202428.5A EP16202428A EP3333643B1 EP 3333643 B1 EP3333643 B1 EP 3333643B1 EP 16202428 A EP16202428 A EP 16202428A EP 3333643 B1 EP3333643 B1 EP 3333643B1
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EP
European Patent Office
Prior art keywords
pivots
connecting link
fixing device
link
passage
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
EP16202428.5A
Other languages
German (de)
French (fr)
Other versions
EP3333643A1 (en
Inventor
Pierry Vuille
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.)
Swatch Group Research and Development SA
Original Assignee
Swatch Group Research and Development 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 Swatch Group Research and Development SA filed Critical Swatch Group Research and Development SA
Priority to EP16202428.5A priority Critical patent/EP3333643B1/en
Priority to US15/819,965 priority patent/US10359739B2/en
Priority to JP2017228593A priority patent/JP6437081B2/en
Priority to CN201711265433.XA priority patent/CN108143056B/en
Publication of EP3333643A1 publication Critical patent/EP3333643A1/en
Priority to HK18115040.8A priority patent/HK1255966A1/en
Application granted granted Critical
Publication of EP3333643B1 publication Critical patent/EP3333643B1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/14—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps characterised by the way of fastening to a wrist-watch or the like
    • 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
    • A44C5/02—Link constructions
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/14—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

  • Watches are known in the prior art which are held on the user's wrist by means of a bracelet.
  • This bracelet can be made of leather, fabric, rubber, plastic, ceramic or even metal and is connected to the pairs of horns of the watch case via bars fixed between the horns for example.
  • the traditional bar includes several small sliding parts forming the ends and a cylinder with a spring in the center forming the body and maintaining the whole, which means that the bar is not rigid by its construction and presents a play for allow the parts to slide between them (ends folded in the cylindrical body).
  • the connecting link located between the box and the other links of the bracelet must have lateral clearances in order to be able to mount and / or dismantle the bracelet, which further decreases the quality of the retention of the bar.
  • the invention particularly aims to overcome the various drawbacks of these known techniques.
  • an objective of the invention is to remove the play visible at the interface between the connecting link and the housing.
  • Another objective of the invention is to provide an assembly (housing-bar-connecting link) making it possible to have wider machining tolerances for the different parts which constitute it, and simplifying the assembly (It is not not necessary according to the invention to have a precise initial positioning between the bar of the connecting link and the housing). It is also easier to guarantee perfect co-axiality as in the case of current standard figures, to reduce the clearance by eliminating the addition of mobile elements, and to limit the constituent elements of the bar.
  • a device for attaching a bracelet to a watch case by means of a connecting link comprising a middle part, at least one pair of horns and a bottom (5), the connecting link comprising a passage receiving means for fixing to the watch case, the fixing means being integrated into the connecting link.
  • the fixing means comprise elastic return means comprising a cover (30) provided with elastic arms (32) in the link (10), the elastic arms (32) separating two pivots mounted movable inside passage, along the longitudinal axis of the passage and capable of changing each between a compressed position and a rest position in which the pivots are arranged to rest in a hole formed in each horn of the watch case.
  • the invention also relates in particular to any timepiece comprising at least one connecting link and its bar according to the invention.
  • the invention relates to a device for attaching a bracelet to a watch case by means of a connecting link, the watch case comprising a middle part, at least one pair of horns and a back, the connecting link comprising a passage receiving means for fixing to the watch case.
  • the fixing means are integrated into the connecting link and comprise a bar formed by elastic return means separating two pivots mounted mobile inside the passage, along the longitudinal axis of the passage and capable of evolving each between a compressed position and a rest position in which the pivots are arranged to rest in a housing formed in each horn of the case.
  • the opening 20 is located in the center of the connecting link 10, on the underside, so that it is not visible to the wearer.
  • the opening 20 is oblong in shape but can very well take other forms. It is possible to conceal this opening 20 by means of a rubber cover for example, in this way no foreign body can be housed in the housing 100 via the opening 20.
  • the connecting link 10 comprises a cover 30 provided with elastic arms 32 making it possible to replace the elastic return means.
  • a cover 30 is placed in the link 10 and is crossed at its center and over its height by a bore 34 for the passage of a screw 35 or any other fixing means.
  • the cover 30 comprises two elastically deformable arms 32 positioned against the pivots 11, 12, and playing the role of springs.
  • the cover 30 has a clearance 31 facilitating the deformation of the elastic arms 32 and of the stops 33 to limit the movement of the elastic arms and avoid excessive deformation of the latter.
  • the cover 30 can be made of any material allowing elastic deformation such as certain plastics, certain composites or even certain metals or alloys.
  • the fixing means are integrated into the connecting link 10 and comprise a bar formed by elastic return means 13 separating two pivots 11, 12 mounted movably inside the passage, along the longitudinal axis of the passage and likely to evolve each between a compressed position and a rest position in which the pivots are arranged to rest in a housing formed in each horn of the case.
  • the link 10 comprises two pivots mounted movable in translation in a housing, preferably of straight cylindrical section, formed in the link. These pivots form the fixing means and are projecting at the side walls of the link link 10, in order to be able to cooperate with the holes 101, 102 formed in the horns 2, 3 when the link link 10 is fixed on the watch case. 1.
  • the pivots 11, 12 are mounted movable between a rest position in which they each cooperate with one of the holes 101, 102 of the horns 2, 3 to hold the link 10 against the housing 1, and a compressed position in which the link link 10 is free and the pivots 11,12 are retracted inside the link 10.
  • Each pivot 11, 12 comprises a cylindrical body ensuring guiding in translation in the housing formed inside the connecting link 10, as can be seen in the figure 2 .
  • a spring 13 is placed between the pivots, so as to exert a force tending to maintain the pivots in their rest position.
  • Each pivot 11, 12 also comprises, at one of its ends, a gripping notch 110, 120, configured to cooperate with a tool, visible and accessible through the opening 20 so that by exerting pressure simultaneously on each pivots the latter are found in the compressed position and are no longer projecting.
  • the other end of each of the pivots, called the head has a frustoconical or cylindrical shape, arranged to be housed in the holes of the horns 2,3 of the watch case 1.
  • the heads of the pivots allow, depending on the geometry of the holes , a โ€œtensionerโ€ operation, that is to say, to exert a restoring force to force the connecting link against the box firmly and without play.
  • the body can for example have a greater length so that it is better guided in the housing.
  • a person skilled in the art can also imagine a hollow part in the body of the pivots 11,12 to receive one end of the spring 13. It can also be provided with abutment means in the housing to limit the stroke of the pivots 11,12 in the housing.
  • the pivots 11, 12 can be made of plastic, ceramic, composite materials or even metal or metal alloy, including amorphous or partially amorphous metal alloys.
  • the holes 100, 101 machined in the horns 2,3 may have a straight cylindrical section or else a frustoconical section, as can be seen in figure 2 .
  • the holes can be machined perpendicular in the horns as illustrated in the figures or have any inclination facilitating the machining of the holes in the horns.

Description

Domaine de l'inventionField of the invention

La prรฉsente invention concerne un dispositif pour relier un bracelet ร  un boรฎtier de montre comportant des รฉlรฉments d'habillage rรฉalisรฉs en un matรฉriau dur tel que du mรฉtal. Plus prรฉcisรฉment, la prรฉsente invention concerne un maillon de liaison muni d'une barrette, tous deux prรฉvus pour relier un bracelet ร  un boรฎtier d'une montre.The present invention relates to a device for connecting a bracelet to a watch case comprising covering elements made of a hard material such as metal. More specifically, the present invention relates to a connecting link provided with a bar, both provided for connecting a bracelet to a watch case.

Arriรจre-plan de l'inventionInvention background

Il est connu dans l'art antรฉrieur des montres qui sont maintenues au poignet de l'utilisateur au moyen d'un bracelet. Ce bracelet peut รชtre en cuir, en tissu, en caoutchouc, en plastique, en cรฉramique ou encore en mรฉtal et est reliรฉ aux paires de cornes du boรฎtier de la montre via des barrettes fixรฉes entre les cornes par exemple.Watches are known in the prior art which are held on the user's wrist by means of a bracelet. This bracelet can be made of leather, fabric, rubber, plastic, ceramic or even metal and is connected to the pairs of horns of the watch case via bars fixed between the horns for example.

Un tel mode de rรฉalisation prรฉsente plusieurs inconvรฉnients. En effet, la barrette traditionnelle comprend plusieurs petites piรจces coulissantes formant les extrรฉmitรฉs et un cylindre avec un ressort au centre formant le corps et maintenant le tout, ce qui fait que la barrette n'est pas rigide de par sa construction et prรฉsente un jeu pour permettre le glissement des piรจces entre elles (extrรฉmitรฉs repliรฉes dans le corps cylindrique).Such an embodiment has several drawbacks. Indeed, the traditional bar includes several small sliding parts forming the ends and a cylinder with a spring in the center forming the body and maintaining the whole, which means that the bar is not rigid by its construction and presents a play for allow the parts to slide between them (ends folded in the cylindrical body).

De plus, le maillon de liaison situรฉ entre la boรฎte et les autres maillons du bracelet doit prรฉsenter des dรฉgagements latรฉraux pour pouvoir monter et/ou dรฉmonter le bracelet, ce qui diminue encore la qualitรฉ du maintien de la barrette.In addition, the connecting link located between the box and the other links of the bracelet must have lateral clearances in order to be able to mount and / or dismantle the bracelet, which further decreases the quality of the retention of the bar.

Au final, un tel montage implique un jeu visible entre le boitier de la montre au niveau de l'entrecorne, et le maillon de liaison du bracelet, ce qui est inesthรฉtique et donne l'impression d'une mauvaise intรฉgration, ou d'une rรฉalisation de mauvaise facture.In the end, such an assembly implies visible play between the watch case at the entrecorne, and the link connecting the bracelet, which is unsightly and gives the impression of poor integration, or of a realization of bad invoice.

Le document WO 2005/018368 dรฉcrit un dispositif de fixation selon le prรฉambule de la revendication 1.The document WO 2005/018368 describes a fixing device according to the preamble of claim 1.

Rรฉsumรฉ de l'inventionSummary of the invention

L'invention a notamment pour objectif de pallier aux diffรฉrents inconvรฉnients de ces techniques connues.The invention particularly aims to overcome the various drawbacks of these known techniques.

Plus prรฉcisรฉment, un objectif de l'invention est de supprimer le jeu visible ร  l'interface entre le maillon de liaison et le boitier.More specifically, an objective of the invention is to remove the play visible at the interface between the connecting link and the housing.

Un autre objectif de l'invention est de fournir un ensemble (boรฎtier-barrette-maillon de liaison) permettant d'avoir des tolรฉrances d'usinages plus larges pour les diffรฉrentes parties qui le constituent, et simplifiant l'assemblage (Il n'est pas nรฉcessaire selon l'invention d'avoir un positionnement initial prรฉcis entre la barrette du maillon de liaison et le boรฎtier). Il est รฉgalement plus facile pour garantir une co-axialitรฉ parfaite comme dans les cas de figures standards actuels, de diminuer le jeu en supprimant l'addition d'รฉlรฉments mobiles, et de limiter les รฉlรฉments constitutifs de la barrette.Another objective of the invention is to provide an assembly (housing-bar-connecting link) making it possible to have wider machining tolerances for the different parts which constitute it, and simplifying the assembly (It is not not necessary according to the invention to have a precise initial positioning between the bar of the connecting link and the housing). It is also easier to guarantee perfect co-axiality as in the case of current standard figures, to reduce the clearance by eliminating the addition of mobile elements, and to limit the constituent elements of the bar.

Ces objectifs, ainsi que d'autres qui apparaรฎtront plus clairement par la suite, sont atteints selon l'invention ร  l'aide d'un dispositif de fixation d'un bracelet ร  un boitier de montre au moyen d'un maillon de liaison, le boรฎtier de montre comprenant une carrure, au moins une paire de cornes et un fond (5), le maillon de liaison comprenant un passage recevant des moyens de fixation au boรฎtier de montre, les moyens de fixation รฉtant intรฉgrรฉs au maillon de liaison.These objectives, as well as others which will appear more clearly below, are achieved according to the invention using a device for attaching a bracelet to a watch case by means of a connecting link, the watch case comprising a middle part, at least one pair of horns and a bottom (5), the connecting link comprising a passage receiving means for fixing to the watch case, the fixing means being integrated into the connecting link.

Selon l'invention, les moyens de fixation comprennent des moyens de rappel รฉlastiques comprenant un couvercle (30) muni de bras รฉlastiques (32) dans le maillon (10), les bras รฉlastiques (32) sรฉparant deux pivots montรฉs mobiles ร  l'intรฉrieur du passage, selon l'axe longitudinal du passage et susceptibles d'รฉvoluer chacun entre une position comprimรฉe et une position de repos dans laquelle les pivots sont agencรฉs pour reposer dans un trou formรฉ dans chaque corne du boitier de montre.According to the invention, the fixing means comprise elastic return means comprising a cover (30) provided with elastic arms (32) in the link (10), the elastic arms (32) separating two pivots mounted movable inside passage, along the longitudinal axis of the passage and capable of changing each between a compressed position and a rest position in which the pivots are arranged to rest in a hole formed in each horn of the watch case.

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

  • les trous des cornes forment un premier axe, et le passage forme un deuxiรจme axe, le premier axe et le deuxiรจme axe รฉtant non nรฉcessairement coaxiaux ;
  • les pivots comprennent un corps cylindrique et une tรชte tronconique, ladite tรชte รฉtant agencรฉe pour coopรฉrer avec un trou de l'une des cornes du boรฎtier de montre ;
  • les trous sont de formes cylindrique ou tronconique ;
  • les pivots comprennent un corps cylindrique et une tรชte de forme tronconique ou cylindrique agencรฉe pour coopรฉrer avec les trous ;
  • le couvercle prรฉsente un dรฉgagement facilitant la dรฉformation des bras รฉlastiques et des butรฉes pour limiter le dรฉbattement des bras รฉlastiques ;
  • le passage se prรฉsente sous la forme d'un cylindre droit ;
  • le maillon de liaison est en matiรจre plastique, en cรฉramique, en composite ou en mรฉtal.
In accordance with other advantageous variants of the invention:
  • the holes of the horns form a first axis, and the passage forms a second axis, the first axis and the second axis not necessarily being coaxial;
  • the pivots comprise a cylindrical body and a frustoconical head, said head being arranged to cooperate with a hole in one of the horns of the watch case;
  • the holes are cylindrical or frustoconical in shape;
  • the pivots include a cylindrical body and a frustoconical or cylindrical head arranged to cooperate with the holes;
  • the cover has a clearance facilitating the deformation of the elastic arms and of the stops to limit the movement of the elastic arms;
  • the passage is in the form of a straight cylinder;
  • the link is made of plastic, ceramic, composite or metal.

L'invention concerne aussi et notamment toute piรจce d'horlogerie comprenant au moins un maillon de liaison et sa barrette conforme ร  l'invention.The invention also relates in particular to any timepiece comprising at least one connecting link and its bar according to the invention.

Description sommaire des dessinsBrief description of the drawings

D'autres caractรฉristiques et avantages de l'invention apparaรฎtront plus clairement ร  la lecture de la description suivante d'un mode de rรฉalisation particulier de l'invention, donnรฉ ร  titre de simple exemple illustratif et non limitatif, et des figures annexรฉes, parmi lesquelles :

  • la figure 1 est une vue de dessous d'une montre รฉquipรฉe d'un maillon de liaison ;
  • la figure 2 illustre une vue en coupe selon la ligne D-D de la figure 1 ;
  • la figure 3 est une vue en coupe longitudinale d'une montre รฉquipรฉe d'un maillon de liaison ;
  • la figure 4 est une vue en perspective d'un maillon de liaison ;
  • la figure 5 est une vue en coupe d'un maillon conforme ร  l'invention selon un autre mode de rรฉalisation.
Other characteristics and advantages of the invention will appear more clearly on reading the following description of a particular embodiment of the invention, given by way of simple illustrative and nonlimiting example, and of the appended figures, among which :
  • the figure 1 is a bottom view of a watch fitted with a link;
  • the figure 2 illustrates a sectional view along line DD of the figure 1 ;
  • the figure 3 is a view in longitudinal section of a watch fitted with a connecting link;
  • the figure 4 is a perspective view of a connecting link;
  • the figure 5 is a sectional view of a link according to the invention according to another embodiment.

Description dรฉtaillรฉe des modes de rรฉalisation prรฉfรฉrรฉsDetailed description of preferred embodiments

L'invention concerne un dispositif de fixation d'un bracelet ร  un boitier de montre au moyen d'un maillon de liaison, le boรฎtier de montre comprenant une carrure, au moins une paire de cornes et un fond, le maillon de liaison comprenant un passage recevant des moyens de fixation au boรฎtier de montre.The invention relates to a device for attaching a bracelet to a watch case by means of a connecting link, the watch case comprising a middle part, at least one pair of horns and a back, the connecting link comprising a passage receiving means for fixing to the watch case.

Selon l'invention, les moyens de fixation sont intรฉgrรฉs au maillon de liaison et comprennent une barrette formรฉe par des moyens de rappel รฉlastiques sรฉparant deux pivots montรฉs mobiles ร  l'intรฉrieur du passage, selon l'axe longitudinal du passage et susceptibles d'รฉvoluer chacun entre une position comprimรฉe et une position de repos dans laquelle les pivots sont agencรฉs pour reposer dans un logement formรฉ dans chaque corne du boitier.According to the invention, the fixing means are integrated into the connecting link and comprise a bar formed by elastic return means separating two pivots mounted mobile inside the passage, along the longitudinal axis of the passage and capable of evolving each between a compressed position and a rest position in which the pivots are arranged to rest in a housing formed in each horn of the case.

On a reprรฉsentรฉ sur la figure 1 un maillon de liaison 10 agencรฉ pour relier un boรฎtier de montre 1 et un bracelet. Le maillon de liaison 10 est de forme gรฉnรฉrale parallรฉlรฉpipรฉdique et est prรฉvu pour รชtre logรฉ sans jeu entre les cornes 2, 3 du boรฎtier de montre 1. Le maillon de liaison 10 prรฉsente deux faces latรฉrales opposรฉes destinรฉes ร  venir se placer contre les cornes 2 et 3 du boรฎtier 1. Les deux autres faces latรฉrales opposรฉes sont respectivement l'une placรฉe contre le boรฎtier 1, et l'autre est destinรฉe ร  รชtre du cรดtรฉ du bracelet. Cette derniรจre comprend des moyens d'attache agencรฉs pour recevoir une barrette pour relier le maillon de liaison 10 avec un brin de bracelet. La face latรฉrale reposant contre le boรฎtier de montre 1 est conformรฉe de maniรจre ร  รฉpouser la forme du boรฎtier 1 et ainsi limiter le jeu entre le boรฎtier 1 et le maillon de liaison 10.We have represented on the figure 1 a connecting link 10 arranged to connect a watch case 1 and a bracelet. The connecting link 10 is of generally parallelepipedal shape and is designed to be housed without play between the horns 2, 3 of the watch case 1. The connecting link 10 has two opposite lateral faces intended to be placed against the horns 2 and 3 of the case 1. The two other opposite lateral faces are respectively one placed against the case 1, and the other is intended to be on the side of the bracelet. The latter comprises attachment means arranged to receive a bar for connecting the connecting link 10 with a bracelet strand. The side face resting against the watch case 1 is shaped so as to follow the shape of the housing 1 and thus limit the clearance between the housing 1 and the connecting link 10.

Avantageusement, une ouverture est formรฉe au dos du maillon de liaison 10 de maniรจre ร  pouvoir accรฉder aux moyens de fixation logรฉs dans un passage formรฉ dans le maillon de liaison 10.Advantageously, an opening is formed on the back of the connecting link 10 so as to be able to access the fixing means housed in a passage formed in the connecting link 10.

De maniรจre avantageuse, l'ouverture 20 est situรฉe au centre du maillon de liaison 10, sur la face infรฉrieure, de maniรจre ร  ce qu'il ne soit pas visible par le porteur. Telle qu'illustrรฉe, l'ouverture 20 est de forme oblongue mais peu trรจs bien prendre d'autres formes. Il est possible d'occulter cette ouverture 20 au moyen d'un cache en caoutchouc par exemple, de cette maniรจre aucun corps รฉtranger ne peut venir se loger dans le logement 100 via l'ouverture 20.Advantageously, the opening 20 is located in the center of the connecting link 10, on the underside, so that it is not visible to the wearer. As illustrated, the opening 20 is oblong in shape but can very well take other forms. It is possible to conceal this opening 20 by means of a rubber cover for example, in this way no foreign body can be housed in the housing 100 via the opening 20.

Selon un mode de rรฉalisation particulier de l'invention, le maillon de liaison 10 comprend un couvercle 30 muni de bras รฉlastiques 32 permettant de remplacer les moyens de rappel รฉlastiques. Un tel couvercle 30 est mis en place dans le maillon 10 et est traversรฉ en son centre et sur sa hauteur par un perรงage 34 pour le passage d'une vis 35 ou tout autre moyen de fixation. Comme on peut le voir, le couvercle 30 comprend deux bras 32 dรฉformables รฉlastiquement positionnรฉs contre les pivots 11, 12, et jouant le rรดle de ressorts. Avantageusement, le couvercle 30 prรฉsente un dรฉgagement 31 facilitant la dรฉformation des bras รฉlastiques 32 et des butรฉes 33 pour limiter le dรฉbattement des bras รฉlastiques et รฉviter une trop grande dรฉformation de ces derniers.According to a particular embodiment of the invention, the connecting link 10 comprises a cover 30 provided with elastic arms 32 making it possible to replace the elastic return means. Such a cover 30 is placed in the link 10 and is crossed at its center and over its height by a bore 34 for the passage of a screw 35 or any other fixing means. As can be seen, the cover 30 comprises two elastically deformable arms 32 positioned against the pivots 11, 12, and playing the role of springs. Advantageously, the cover 30 has a clearance 31 facilitating the deformation of the elastic arms 32 and of the stops 33 to limit the movement of the elastic arms and avoid excessive deformation of the latter.

Le couvercle 30 peut รชtre rรฉalisรฉ dans toute matiรจre permettant une dรฉformation รฉlastique telle que certaines matiรจres plastiques, certains composites ou bien encore certains mรฉtaux ou alliages.The cover 30 can be made of any material allowing elastic deformation such as certain plastics, certain composites or even certain metals or alloys.

Selon l'invention, les moyens de fixation sont intรฉgrรฉs au maillon de liaison 10 et comprennent une barrette formรฉe par des moyens de rappel รฉlastiques 13 sรฉparant deux pivots 11, 12 montรฉs mobiles ร  l'intรฉrieur du passage, selon l'axe longitudinal du passage et susceptibles d'รฉvoluer chacun entre une position comprimรฉe et une position de repos dans laquelle les pivots sont agencรฉs pour reposer dans un logement formรฉ dans chaque corne du boitier.According to the invention, the fixing means are integrated into the connecting link 10 and comprise a bar formed by elastic return means 13 separating two pivots 11, 12 mounted movably inside the passage, along the longitudinal axis of the passage and likely to evolve each between a compressed position and a rest position in which the pivots are arranged to rest in a housing formed in each horn of the case.

Le maillon 10 comprend deux pivots montรฉs mobiles en translation dans un logement, prรฉfรฉrentiellement de section cylindrique droite, formรฉ dans le maillon. Ces pivots forment les moyens de fixation et sont saillants au niveau des parois latรฉrales du maillon de liaison 10, pour pouvoir coopรฉrer avec les trous 101, 102 formรฉs dans les cornes 2, 3 lorsque le maillon de liaison 10 est fixรฉ sur le boรฎtier de montre 1.The link 10 comprises two pivots mounted movable in translation in a housing, preferably of straight cylindrical section, formed in the link. These pivots form the fixing means and are projecting at the side walls of the link link 10, in order to be able to cooperate with the holes 101, 102 formed in the horns 2, 3 when the link link 10 is fixed on the watch case. 1.

Les pivots 11, 12 sont montรฉs mobiles entre une position de repos dans laquelle ils coopรจrent chacun avec l'un des trous 101, 102 des cornes 2, 3 pour maintenir le maillon 10 contre le boรฎtier 1, et une position comprimรฉe dans laquelle le maillon de liaison 10 est libre et les pivots 11,12 sont rรฉtractรฉs ร  l'intรฉrieur du maillon 10.The pivots 11, 12 are mounted movable between a rest position in which they each cooperate with one of the holes 101, 102 of the horns 2, 3 to hold the link 10 against the housing 1, and a compressed position in which the link link 10 is free and the pivots 11,12 are retracted inside the link 10.

Chaque pivot 11, 12 comprend un corps cylindrique assurant le guidage en translation dans le logement formรฉ ร  l'intรฉrieur du maillon de liaison 10, comme on peut le voir sur la figure 2. Un ressort 13 est placรฉ entre les pivots, de maniรจre ร  exercer une force tendant ร  maintenir les pivots dans leur position de repos. Chaque pivot 11, 12 comprend รฉgalement, ร  l'une de ses extrรฉmitรฉs, une encoche de prรฉhension 110,120, configurรฉe pour coopรฉrer avec un outil, visible et accessible par l'ouverture 20 de maniรจre ร  ce qu'en exerรงant une pression simultanรฉment sur chacun des pivots ces derniers se retrouvent en position comprimรฉe et ne soient plus saillants. L'autre extrรฉmitรฉ de chacun des pivots, appelรฉe tรชte, prรฉsente une forme tronconique ou cylindrique, agencรฉe pour se loger dans les trous des cornes 2,3 du boรฎtier de montre 1. Ainsi, les tรชtes des pivots permettent, selon la gรฉomรฉtrie des trous, un fonctionnement ยซ tendeur ยป, c'est-ร -dire, d'exercer une force de rappel pour contraindre le maillon de liaison contre la boรฎte fermement et sans jeu.Each pivot 11, 12 comprises a cylindrical body ensuring guiding in translation in the housing formed inside the connecting link 10, as can be seen in the figure 2 . A spring 13 is placed between the pivots, so as to exert a force tending to maintain the pivots in their rest position. Each pivot 11, 12 also comprises, at one of its ends, a gripping notch 110, 120, configured to cooperate with a tool, visible and accessible through the opening 20 so that by exerting pressure simultaneously on each pivots the latter are found in the compressed position and are no longer projecting. The other end of each of the pivots, called the head, has a frustoconical or cylindrical shape, arranged to be housed in the holes of the horns 2,3 of the watch case 1. Thus, the heads of the pivots allow, depending on the geometry of the holes , a โ€œtensionerโ€ operation, that is to say, to exert a restoring force to force the connecting link against the box firmly and without play.

Bien รฉvidemment les dimensions et la forme des pivots 11,12 peuvent varier, le corps peut par exemple prรฉsenter une longueur plus grande de maniรจre ร  ce qu'il soit mieux guidรฉ dans le logement. L'homme du mรฉtier pourra รฉgalement imaginer une partie creuse dans le corps des pivots 11,12 pour recevoir une extrรฉmitรฉ du ressort 13. Il peut รฉgalement รชtre prรฉvu des moyens de butรฉe dans le logement pour limiter la course des pivots 11,12 dans le logement.Obviously the dimensions and the shape of the pivots 11,12 can vary, the body can for example have a greater length so that it is better guided in the housing. A person skilled in the art can also imagine a hollow part in the body of the pivots 11,12 to receive one end of the spring 13. It can also be provided with abutment means in the housing to limit the stroke of the pivots 11,12 in the housing.

Les pivots 11, 12 peuvent รชtre rรฉalisรฉ en matiรจre plastiques, en cรฉramique, en matรฉriaux composites ou encore en mรฉtal ou alliage mรฉtallique, y compris les alliages mรฉtalliques amorphes ou partiellement amorphes.The pivots 11, 12 can be made of plastic, ceramic, composite materials or even metal or metal alloy, including amorphous or partially amorphous metal alloys.

Les trous 100, 101 usinรฉs dans les cornes 2,3 peuvent prรฉsenter une section cylindrique droite ou bien une section tronconique, comme on peut l'observer ร  la figure 2. Les trous peuvent รชtre usinรฉs perpendiculaire dans les cornes comme illustrรฉs sur les figures ou prรฉsenter une inclinaison quelconque facilitant l'usinage des trous dans les cornes.The holes 100, 101 machined in the horns 2,3 may have a straight cylindrical section or else a frustoconical section, as can be seen in figure 2 . The holes can be machined perpendicular in the horns as illustrated in the figures or have any inclination facilitating the machining of the holes in the horns.

Selon un aspect particuliรจrement avantageux de l'invention, l'axe A des trous 100,101 des cornes 2, 3 et l'axe B de la barrette sont lรฉgรจrement dรฉcalรฉs, les axes A et B รฉtant parallรจles entre eux et dans le plan mรฉdian du maillon de liaison, de maniรจre ร  dรฉcaler l'axe des trous par rapport ร  l'axe du logement formรฉ dans le maillon 10, ce qui permet de contraindre le maillon de liaison 10 contre le boรฎtier de montre par le dรฉplacement linรฉaire des pivots dans le plan mรฉdian du maillon de liaison, selon une direction perpendiculaire au logement recevant les pivots, et d'รฉliminer automatiquement le jeu entre le maillon de liaison 10 et le boรฎtier 1.According to a particularly advantageous aspect of the invention, the axis A of the holes 100, 101 of the horns 2, 3 and the axis B of the bar are slightly offset, the axes A and B being parallel to each other and in the median plane of the link link, so as to offset the axis of the holes relative to the axis of the housing formed in the link 10, which allows to constrain the link link 10 against the watch case by the linear movement of the pivots in the plane median of the connecting link, in a direction perpendicular to the housing receiving the pivots, and automatically eliminating the play between the connecting link 10 and the housing 1.

Il va de soi que la prรฉsente invention n'est pas limitรฉe au mode de rรฉalisation qui vient d'รชtre dรฉcrit et que diverses modifications et variantes simples peuvent รชtre envisagรฉes par l'homme du mรฉtier sans sortir du cadre de l'invention tel que dรฉfini par les revendications annexรฉes ร  la prรฉsente demande de brevet. En particulier, on comprendra que bien qu'ayant รฉtรฉ dรฉcrite en liaison avec un maillon de bracelet et un boรฎtier de montre rรฉalisรฉs en matรฉriau mรฉtallique, la prรฉsente invention peut s'appliquer de maniรจre identique ร  des maillons et ร  des boรฎtiers rรฉalisรฉs en un autre matรฉriau dur tel que la cรฉramique, un composite ou encore des matiรจres plastiques. Le maillon de liaison peut aussi รชtre un insert rigide surmoulรฉ de plastique, de caoutchouc ou recouvert de cuir ou de tissu.It goes without saying that the present invention is not limited to the embodiment which has just been described and that various simple modifications and variants can be envisaged by those skilled in the art without departing from the scope of the invention as defined. by the claims appended to this patent application. In particular, it will be understood that although having been described in connection with a bracelet link and a watch case made of metallic material, the present invention can be applied in the same way to links and cases made of another hard material such as ceramic, a composite or else plastics. The link can also be a rigid insert overmolded with plastic, rubber or covered with leather or fabric.

Claims (9)

  1. Fixing device for attaching a band to a watch case (1) by means of a connecting link (10), the watch case (1) comprising a case middle (4), at least one pair of lugs (2,3) and a case back (5), the connecting link (10) comprising a passage (100) accepting fixing means of attachment to the watch case (1), the fixing means being incorporated into the connecting link (10),
    characterized in that the fixing means comprise elastic return means (13) comprising a casing (30) equipped with deformable elastic arms (32) in the link (10), the elastic arms (32) separating two pivots (11, 12) mounted with the ability to move inside the passage (100), along the longitudinal axis of the passage, and each capable of moving between a compressed position and a rest position in which the pivots (11, 12) are designed to rest in a hole (101, 102) formed in each lug (2, 3) of the watch case (1).
  2. Fixing device according to Claim 1, in which the holes (101, 102) in the lugs (2, 3) form a first axis (A), and the passage (100) forms a second axis (B), the first axis (A) and the second axis (B) not necessarily being coaxial.
  3. Fixing device according to Claim 1 or 2, in which the pivots (11, 12) comprise a cylindrical body and a truncated cone shape head, the said head being designed to collaborate with a hole (101, 102) in one of the lugs (2, 3) of the watch case (1).
  4. Fixing device according to one of Claims 1 to 3, in which the holes (2, 3) are of cylindrical or truncated cone shape.
  5. Fixing device according to one of Claims 1 to 4, in which the pivots (11, 12) comprise a cylindrical body and a head of cylindrical or truncated cone shape designed to collaborate with the holes (101, 102).
  6. Fixing device according to Claim 1, in which the casing (30) has a gap (31) that makes it easier for the elastic arms (32) to deform and limit stops (33) for limiting the travel of the elastic arms (32).
  7. Fixing device according to one of Claims 1 to 6, in which the passage (100) takes the form of a straight cylinder.
  8. Fixing device according to one of Claims 1 to 7, in which the connecting link is made of plastic, of ceramic, of composite or of metal.
  9. Watch comprising a case formed of a case middle (4) having two pairs of lugs (2, 3) defining a connecting space for connecting with the case middle (4) and comprising at least one connecting link (10) according to one of the preceding claims, the connecting link (10) being accommodated in the connecting space.
EP16202428.5A 2016-12-06 2016-12-06 Attachment device Active EP3333643B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP16202428.5A EP3333643B1 (en) 2016-12-06 2016-12-06 Attachment device
US15/819,965 US10359739B2 (en) 2016-12-06 2017-11-21 Fixing device
JP2017228593A JP6437081B2 (en) 2016-12-06 2017-11-29 Fixed device
CN201711265433.XA CN108143056B (en) 2016-12-06 2017-12-05 Fixing device
HK18115040.8A HK1255966A1 (en) 2016-12-06 2018-11-23 Fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16202428.5A EP3333643B1 (en) 2016-12-06 2016-12-06 Attachment device

Publications (2)

Publication Number Publication Date
EP3333643A1 EP3333643A1 (en) 2018-06-13
EP3333643B1 true EP3333643B1 (en) 2020-02-05

Family

ID=57539037

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16202428.5A Active EP3333643B1 (en) 2016-12-06 2016-12-06 Attachment device

Country Status (5)

Country Link
US (1) US10359739B2 (en)
EP (1) EP3333643B1 (en)
JP (1) JP6437081B2 (en)
CN (1) CN108143056B (en)
HK (1) HK1255966A1 (en)

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KR102500141B1 (en) * 2016-08-30 2023-02-15 ์‚ผ์„ฑ์ „์ž์ฃผ์‹ํšŒ์‚ฌ Strap with improved fastening structure and wearable electronic device including the same
EP3480665B1 (en) * 2017-11-02 2020-12-30 The Swatch Group Research and Development Ltd Removable band for watch or the like and device for fastening same
EP3560371B1 (en) * 2018-04-26 2023-12-27 Rolex Sa Device for securing a strap to a watch case
CN109043751B (en) * 2018-06-28 2021-01-26 ็ซ‹่ฎฏ็”ตๅญ็ง‘ๆŠ€๏ผˆๆ˜†ๅฑฑ๏ผ‰ๆœ‰้™ๅ…ฌๅธ Connection structure and wearing equipment
EP3798742A1 (en) 2019-09-24 2021-03-31 ETA SA Manufacture Horlogรจre Suisse Device for connecting case body and lugs for a watch
EP3958069A1 (en) * 2020-08-18 2022-02-23 The Swatch Group Research and Development Ltd Watch case provided with a trim component
CN112674732A (en) * 2020-12-17 2021-04-20 ๅผ ่…พ Multifunctional pulse detector and old people nursing system
CN112716119B (en) * 2020-12-29 2022-08-26 ็ปดๆฒƒ็งปๅŠจ้€šไฟกๆœ‰้™ๅ…ฌๅธ Watch (watch)

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Also Published As

Publication number Publication date
JP2018091843A (en) 2018-06-14
US20180157216A1 (en) 2018-06-07
US10359739B2 (en) 2019-07-23
HK1255966A1 (en) 2019-09-06
CN108143056B (en) 2020-05-22
JP6437081B2 (en) 2018-12-12
CN108143056A (en) 2018-06-12
EP3333643A1 (en) 2018-06-13

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