EP2601855A1 - Watch strap clasp - Google Patents

Watch strap clasp Download PDF

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Publication number
EP2601855A1
EP2601855A1 EP11192832.1A EP11192832A EP2601855A1 EP 2601855 A1 EP2601855 A1 EP 2601855A1 EP 11192832 A EP11192832 A EP 11192832A EP 2601855 A1 EP2601855 A1 EP 2601855A1
Authority
EP
European Patent Office
Prior art keywords
link
clasp
bracelet
pawl
lid
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.)
Withdrawn
Application number
EP11192832.1A
Other languages
German (de)
French (fr)
Inventor
Cédric Kaltenrieder
Rocco Catanese
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 EP11192832.1A priority Critical patent/EP2601855A1/en
Priority to EP12194339.3A priority patent/EP2601857B1/en
Priority to US13/693,836 priority patent/US8739369B2/en
Priority to JP2012269029A priority patent/JP5580390B2/en
Priority to CN201210528014.1A priority patent/CN103156340B/en
Publication of EP2601855A1 publication Critical patent/EP2601855A1/en
Priority to HK13113957.9A priority patent/HK1186359A1/en
Withdrawn legal-status Critical Current

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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
    • A44C5/18—Fasteners for straps, chains or the like
    • A44C5/22—Fasteners for straps, chains or the like for closed straps
    • A44C5/24—Fasteners for straps, chains or the like for closed straps with folding devices
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B11/00—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts
    • A44B11/02—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts frictionally engaging surface of straps
    • A44B11/06—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts frictionally engaging surface of straps with clamping devices
    • A44B11/12—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts frictionally engaging surface of straps with clamping devices turnable clamp
    • 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
    • A44C5/18—Fasteners for straps, chains or the like
    • A44C5/22—Fasteners for straps, chains or the like for closed straps
    • A44C5/24—Fasteners for straps, chains or the like for closed straps with folding devices
    • A44C5/246—Fasteners for straps, chains or the like for closed straps with folding devices having size adjusting means
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41F—GARMENT FASTENINGS; SUSPENDERS
    • A41F9/00—Belts, girdles, or waistbands for trousers or skirts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/21—Strap tighteners
    • Y10T24/2143—Strap-attached folding lever
    • Y10T24/2155—Jewelry-watch straps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/47—Strap-end-attaching devices
    • Y10T24/4782—Watch strap

Definitions

  • the present invention relates to a clasp for a watch strap. More specifically, the invention relates to a clasp formed of a first and a second links which, according to their respective positions, allow to vary the length of the bracelet between a first short adjustment dimension and a second adjustment dimension long. The bracelet can thus go from a so-called threading dimension in which the user can pass his watch around the wrist to a so-called wearing dimension in which the clasp is blocked. Similarly, the clasp according to the invention can act as a plunger extension to allow the user to increase the length of the bracelet to take into account the thickness of the diving suit.
  • the diving suits are relatively thick to protect the divers from the cold of the water. Thus, when a diver puts on his diving suit, he needs to increase the length of the wristwatch of his dive watch so he can pass it around his wrist, over his diving suit.
  • Such extension typically comprises a first adjustment link provided with a first and a second parallel axes of articulation and extending transversely to the bracelet.
  • the first adjustment link is connected to a link of one of the strands of the bracelet by the first axis of articulation.
  • the first adjustment link is associated with a second adjustment link by the second articulation axis.
  • the second adjustment link is connected in turn to the lid of a clasp by a third axis hinge.
  • the length of the bracelet varies between a first short adjustment dimension in which the first and second adjustment links are superimposedly arranged in the clasp cover, and a second adjustment dimension. in which the first and second adjustment links are deployed.
  • the plunger extension device comprises means for locking the first and second adjustment links in the short adjustment position of the length of the bracelet.
  • these locking means are provided on the first control link and comprise on the one hand a tongue and on the other hand a pair of ball pawls.
  • the tongue is provided in the extension of the first adjustment link, where the first adjustment link is articulated on the second adjustment link, while the ball pawls are provided on the sides of the first link of adjustment. adjustment, in the vicinity of the zone where the first adjustment link is connected to the end link of the bracelet strand to which the plunger extension device is articulated.
  • the tongue is provided to engage in a housing formed in the lid of the clasp.
  • the second adjustment link must be folded inside the clasp cover, while the first adjustment link must be presented substantially perpendicular to the plane of the clasp cover before being folded over the clasp cover.
  • second link of adjustment By presenting the first adjustment link perpendicularly to the plane of the lid of the clasp, the tongue is opposite the housing formed in this lid, then engages in this housing as the first adjustment link is folded over the second link of adjustment.
  • the second adjustment link is in the form of a stretcher between the arms of which the first adjustment link is housed.
  • the locking means described above have three disadvantages. First, it is necessary to present the first adjustment link in a specific position, in this case substantially perpendicular to the plane of the clasp cover, so that the tongue can properly engage in the corresponding housing. Failure to comply with this condition, the extension plunger is not properly closed and the bracelet can open unexpectedly, at the risk of losing the watch. Then, the order in which the two locking means, namely the tongue and the two ball pawls, are solicited is not switchable. The tongue must first be engaged in its housing, and then only the ball pawls may allow the first link of the adjustment on the second link to be locked. The opposite is not possible. Such a plunger extension system therefore requires the user to learn to use it and requires the user to pay real attention when he manipulates it. Finally, ball pawls are systems that are easily clogged and are not very reliable.
  • the present invention aims to overcome the aforementioned disadvantages as well as others by providing a clasp whose operation is more reliable and intuitive.
  • the present invention relates to a clasp for a watch strap comprising a cover connected from one side to a first strand of a bracelet and from a second side to a second strand of bracelet with interposition of a deploying system between the second strand of bracelet and the clasp cover, this deploying system comprising a first and a second link, the first link being articulated by a first end on the second strap strand and by a second end on the second link, the second link being itself articulated on the cover of the clasp, the deploying system being movable between a first position wherein the first and second links are superimposed in the lid of the clasp, and a second position in which the first and second links are deployed, the clasp being characterized in that, in the first position of the deploying system, the first link is maintained folded on the second link, the first link having for this purpose first and second elastic locking points for anchoring in the lid of the clasp.
  • the present invention provides a watch strap clasp whose deploying system can be locked very intuitively. It suffices to fold the first link over the second link and engage the assembly in the lid of the clasp. By simply pressing on the first link, the first and second locking points are then anchored spontaneously in the cover of the clasp to ensure the locking of the deploying system. The user does not have to worry about how it presents the first link with respect to the lid of the clasp. In addition, it is totally irrelevant whether the first locking point is biased before or after the second locking point. Finally, the first and second locking points operate according to the principle of elasticity. These are simple and reliable ways.
  • the deploying system can be used indifferently to ensure the locking of the clasp or to allow the adjustment of the length of the bracelet.
  • the first and second elastic locking points are controlled by the same elastic means.
  • first and second locking points are controlled by the same elastic means ensures the simplicity of manufacture of the clasp according to the invention and therefore the reliability of its operation.
  • the present invention proceeds from the general inventive idea of equipping a watch bracelet clasp with a deploying system that allows the choice to vary the length of the bracelet between a first dimension known as wearing in which the deploying system is locked. in the cover of the clasp and a second so-called threading dimension in which the deploying system is open, or to increase the length of the bracelet to allow the user to take into account the thickness of a diving suit.
  • the deploying system comprises a first link articulated at a first end to a strand of the bracelet and at a second end to a second link which is itself hinged to the clasp cover.
  • This deploying system passes from a first position in which the first and second links are arranged superimposed in the lid of the clasp, at a second position in which the first and second links are deployed.
  • the first link has first and second resilient locking points by which the first link is anchored spontaneously in the cover of the clasp to ensure the locking of the deploying system.
  • Such a locking system is very intuitive to use. There is no need to place the first link in a determined position to allow the locking of the deploying system. It is sufficient for the user to fold the first link on the second link and to exert a slight pressure on the first link so that the deploying system as a whole locks spontaneously in the lid of the clasp.
  • the order in which the first and second locking points are solicited has no importance.
  • the locking points operate according to the principle of elasticity. They are therefore simple and therefore reliable.
  • the figure 1 is a perspective and exploded view of a watchband clasp according to the invention.
  • this clasp essentially comprises a lid 2 and a deploying system 4.
  • the lid 2 is connected on one side to a first strand of bracelet 6, of which only one link is visible in the drawing with interposition of a clasp closure system 8 whose structure is known per se and therefore will not be described further here.
  • the clasp closure system 8 can be omitted and that the lid 2 can be connected to the first bracelet strand 6 directly.
  • the lid 2 is connected on the second side to a second strand of bracelet 10, a single link is visible in the drawing with interposition of the deploying system 4 according to the invention.
  • the deploying system 4 is formed of a first link 12 and a second link 14.
  • the first link 12 is articulated by a first end to the second strap strand 10 and by a second end to the second link 14 which is itself hinged to the cover 2. More specifically, the first link 12 is provided with a first and a second hinge pins 16 and 18. These hinge pins 16 and 18 are parallel to each other and s' extend transversely to the bracelet strands 6 and 10.
  • the first link 12 of the deploying system 4 is connected to the second bracelet strand 10 by the first hinge axis 16.
  • the first link 12 is associated with the second link 14 by the second axis 18.
  • the second link 14 is connected in turn to the lid 2 of the clasp 1 by a third hinge axis 20.
  • the deploying system 4 is movable between a first locked position ( Figure 2B ) in which the first and second links 12 and 14 are arranged superimposed in the lid 2 of the clasp 1, and a second open position ( Figure 2A ) in which the first and second links 12 and 14 are deployed.
  • the deploying system 4 thus makes it possible to vary the length of the wristwatch of the watch between a first so-called wearing dimension in which the deploying system 4 is locked in the cover 2 of the clasp 1 so that the user can not lose his watch, and a second so-called threading dimension in which the deploying system is open and which allows the user to pass his watch over his hand.
  • this deploying system 4 allows, in the deployed position, to increase the length of the bracelet to allow the user to take into account the thickness of the a wetsuit.
  • first and second links 12 and 14 are folded inside the cover 2 of the clasp 1, it is necessary for these first and second links 12 and 14 to be held securely to avoid any risk that the bracelet slips along the wrist of the user and that the watch does not fall to the ground.
  • the first link 12 is held folded on the second link 14 and has first and second elastic locking points, respectively 22 and 24, for anchoring in the cover 2 of the clasp 1.
  • the first elastic locking point 22 comprises a pawl 26 whose general shape is similar to that of a V and which comprises two arms 28 interconnected by a spout 30.
  • This pawl 26 is engaged in a notch 32 provided for this purpose. effect in the first link 12, at least one and preferably two springs 34 being interposed between the first link 12 and the pawl 26.
  • the two springs 34 are engaged in two recesses 36 formed in the link 12 and from which they project.
  • the two springs 34 bear against the bottom of a groove 38. It will be noted that the springs 34 are mounted in the compressed state between the pawl 26 and the first link 12.
  • the pawl 26 is coupled with the first link 12 via the second hinge axis 18 by which the first link 12 is associated with the second link 14.
  • the pawl 26 has for this purpose a first oblong hole 40 for the passage of the second hinge axis 18. It will be understood whereas, since the second hinge pin 18 has passed into an oblong hole 40, the pawl 26 is movable in the length direction of the bead between a rest position in which it is held by the springs 34, and an active position in which it is moved from its rest position against the elastic restoring force of the springs 34 and engages with a locking pin 42 provided in the lid 2 of the clasp 1.
  • first link 12 has a second oblong hole 44 for the passage of the second articulation axis 18 by which the first link 12 is associated with the second link 14.
  • first link 12 is provided, on the side of its first link end, the second elastic locking point 24 comprising a notch 46 by which the first link 12 engages a tube 48 secured to the lid 2 of the clasp 1.
  • This tube 48 also serves as a guide element to the third axis of articulation 20 by which the second link 14 is associated with the lid 2 of the clasp 1.
  • the second link 14 has the shape of a stretcher provided with two arms 50 between which the first link 12 is housed in the first position of the deploying system 4.
  • the operation of the deploying system 4 is as follows.
  • the deploying system 4 moves from its second position wherein the first and second links 12 and 14 are deployed at its first position in which the first and second links 12 and 14 are superimposedly arranged in the cover 2 of the clasp 1
  • the first link 12 folds progressively between the arms 50 the second link 14 and the assembly formed by the first and second links 12 and 14 is housed inside the cover 2. It is then sufficient to exert pressure on all of the first and second superimposed links 12 and 14 so that the first link 12 comes to anchor by its first and second elastic locking points 22 and 24 in the lid 2 of the clasp 1.
  • the pawl 26 moves in its active position.
  • the pawl 26 abuts by its beak 30 against the locking pin 42 integral with the lid 2 of the clasp 1 and moves axially in the direction of the length of the bracelet towards the first link 12. During this movement, the pawl 26 goes against the elastic restoring force of the springs 34 which compress. When the first link 12 is completely folded inside the cover 2 of the clasp 1, the tip 30 of the pawl 26 slides under the locking pin 42. The pawl 26 is no longer retained, the springs 34 relax and force the 30 of the pawl 26 under the locking pin 42. During this movement, the pawl 26 moves away from the first link 12 and returns to its rest position.
  • the first link 12 comes by its notch 46 in engagement with the tube 48. This movement is facilitated by the fact that the first link 12 is articulated to the second link 14 by the second hinge pin 18 which passes through the first link 12 via the second oblong hole 44. This assembly allows the first link 12 to move in the lengthwise direction. the bracelet in the direction of the lid 2 of the clasp 1. During this movement, the first link 12 compresses the springs 34 against the bottom of the groove 38 defined by the two arms 28 of the pawl 26 which is stationary. Once the link 12 is notched on the tube 48, the springs 34 return to their rest position. At this point, the 4 unfolding system according to the invention is locked on the lid 2 of the clasp 1 according to its first and second elastic locking points 22 and 24.
  • first link 12 can first be locked on the lid 2 of the clasp 1 by its pawl 26 and then lock on the same cover 2 by its notch 46 or vice versa.
  • the first link 12 moves slightly towards the cover 2 of the clasp 1 by compressing the springs 34 against the pawl 26 which is stationary, which allows the notch 46 to disengage from its grip with the tube 48.
  • the pawl 26 moves elastically towards the first link 12 by compressing the springs 34, which allows the spout 30 of the pawl 26 to disengage from its coupling with the locking pin 42.
  • the tube 48 may be provided at another location of the lid 2 of the clasp 1, independently of the third hinge axis 20.

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Abstract

The clasp (1) has a link (12) hinged by an end to a bracelet strand (10) and another end to another link (14). The latter link is hinged in turn to a cover (2) of the clasp. A folding system (4) is moved between a position, in which the links are superposed on each other inside the cover, and another position in which the links are unfolded. The former link is folded down on the latter link in the former position of the folding system. The former link includes two elastic locking points (22, 24) for fixing the former link in the cover of the clasp. The folding system is used for locking the clasp or adjusting length of a bracelet or belt.

Description

La présente invention concerne un fermoir pour bracelet de montre. Plus précisément, l'invention concerne un fermoir formé d'un premier et d'un second maillons qui, en fonction de leurs positions respectives, permettent de faire varier la longueur du bracelet entre une première dimension de réglage courte et une seconde dimension de réglage longue. Le bracelet peut ainsi passer d'une dimension dite d'enfilement dans laquelle l'utilisateur peut passer sa montre autour du poignet à une dimension dite de porter dans laquelle le fermoir est bloqué. De même, le fermoir selon l'invention peut faire office de rallonge plongeur pour permettre à son utilisateur d'augmenter la longueur du bracelet afin de tenir compte de l'épaisseur de la combinaison de plongée.The present invention relates to a clasp for a watch strap. More specifically, the invention relates to a clasp formed of a first and a second links which, according to their respective positions, allow to vary the length of the bracelet between a first short adjustment dimension and a second adjustment dimension long. The bracelet can thus go from a so-called threading dimension in which the user can pass his watch around the wrist to a so-called wearing dimension in which the clasp is blocked. Similarly, the clasp according to the invention can act as a plunger extension to allow the user to increase the length of the bracelet to take into account the thickness of the diving suit.

Les tenues de plongée sont relativement épaisses afin de protéger les plongeurs du froid de l'eau. Ainsi, lorsqu'un plongeur enfile sa tenue de plongée, il a besoin d'augmenter la longueur du bracelet de sa montre de plongée afin de pouvoir la passer autour de son poignet, par-dessus sa tenue de plongée.The diving suits are relatively thick to protect the divers from the cold of the water. Thus, when a diver puts on his diving suit, he needs to increase the length of the wristwatch of his dive watch so he can pass it around his wrist, over his diving suit.

A cet effet, il est connu d'équiper les bracelets des montres de plongée d'un dispositif connu sous le nom de rallonge plongeur et permettant d'augmenter la longueur des bracelets de telles montres de plongée. Une telle rallonge comprend classiquement un premier maillon de réglage muni d'un premier et d'un second axes d'articulation parallèles et s'étendant transversalement au bracelet. Le premier maillon de réglage est relié à un maillon de l'un des brins du bracelet par le premier axe d'articulation. Le premier maillon de réglage est associé à un second maillon de réglage par le second axe d'articulation. Le second maillon de réglage est relié à son tour au couvercle d'un fermoir par un troisième axe d'articulation. Selon la position respective des premier et second maillons de réglage, la longueur du bracelet varie entre une première dimension de réglage courte dans laquelle les premier et second maillons de réglage sont disposés de manière superposée dans le couvercle du fermoir, et une seconde dimension de réglage longue dans laquelle les premier et second maillons de réglage sont déployés.For this purpose, it is known to equip the wristwatches of diving watches with a device known as an extension plunger and to increase the length of bracelets such diving watches. Such extension typically comprises a first adjustment link provided with a first and a second parallel axes of articulation and extending transversely to the bracelet. The first adjustment link is connected to a link of one of the strands of the bracelet by the first axis of articulation. The first adjustment link is associated with a second adjustment link by the second articulation axis. The second adjustment link is connected in turn to the lid of a clasp by a third axis hinge. According to the respective position of the first and second adjustment links, the length of the bracelet varies between a first short adjustment dimension in which the first and second adjustment links are superimposedly arranged in the clasp cover, and a second adjustment dimension. in which the first and second adjustment links are deployed.

Le dispositif de rallonge plongeur comprend des moyens de blocage des premier et second maillons de réglage dans la position de réglage courte de la longueur du bracelet. Dans un mode de réalisation connu, ces moyens de blocage sont prévus sur le premier maillon de réglage et comprennent d'une part une languette et d'autre part une paire de cliquets à billes. Plus précisément, la languette est prévue dans le prolongement du premier maillon de réglage, à l'endroit où le premier maillon de réglage est articulé sur le second maillon de réglage, tandis que les cliquets à bille sont prévus sur les côtés du premier maillon de réglage, au voisinage de la zone où le premier maillon de réglage est relié au maillon terminal du brin de bracelet auquel le dispositif de rallonge plongeur est articulé. La languette est prévue pour venir s'engager dans un logement ménagé dans le couvercle du fermoir. Pour permettre ce mouvement d'engagement, le second maillon de réglage doit être replié à l'intérieur du couvercle du fermoir, tandis que le premier maillon de réglage doit être présenté sensiblement perpendiculairement au plan du couvercle du fermoir avant d'être replié sur le second maillon de réglage. En présentant le premier maillon de réglage perpendiculairement au plan du couvercle du fermoir, la languette se trouve en regard du logement ménagé dans ce couvercle, puis s'engage dans ce logement au fur et à mesure que le premier maillon de réglage est replié sur le second maillon de réglage. Le second maillon de réglage se présente sous la forme d'un brancard entre les bras duquel le premier maillon de réglage vient se loger. Lorsque le premier maillon de réglage est presque replié sur le second maillon de réglage, les billes des cliquets prévus sur les flancs du premier maillon de réglage se rétractent légèrement, assurant le maintien par friction du premier maillon de réglage sur le second maillon de réglage.The plunger extension device comprises means for locking the first and second adjustment links in the short adjustment position of the length of the bracelet. In a known embodiment, these locking means are provided on the first control link and comprise on the one hand a tongue and on the other hand a pair of ball pawls. More specifically, the tongue is provided in the extension of the first adjustment link, where the first adjustment link is articulated on the second adjustment link, while the ball pawls are provided on the sides of the first link of adjustment. adjustment, in the vicinity of the zone where the first adjustment link is connected to the end link of the bracelet strand to which the plunger extension device is articulated. The tongue is provided to engage in a housing formed in the lid of the clasp. To allow this engagement movement, the second adjustment link must be folded inside the clasp cover, while the first adjustment link must be presented substantially perpendicular to the plane of the clasp cover before being folded over the clasp cover. second link of adjustment. By presenting the first adjustment link perpendicularly to the plane of the lid of the clasp, the tongue is opposite the housing formed in this lid, then engages in this housing as the first adjustment link is folded over the second link of adjustment. The second adjustment link is in the form of a stretcher between the arms of which the first adjustment link is housed. When the first adjustment link is almost folded over the second adjustment link, the pawl balls provided on the flanks of the first adjustment link retract slightly, ensuring the maintenance by friction of the first link of adjustment on the second link of adjustment.

Les moyens de blocage décrits ci-dessus présentent trois inconvénients. Tout d'abord, il est nécessaire de présenter le premier maillon de réglage dans une position bien déterminée, en l'occurrence sensiblement perpendiculairement au plan du couvercle du fermoir, afin que la languette puisse s'engager convenablement dans le logement correspondant. Faute de respecter cette condition, la rallonge plongeur n'est pas convenablement fermée et le bracelet peut s'ouvrir inopinément, au risque de perdre la montre. Ensuite, l'ordre dans lequel les deux moyens de blocage, à savoir la languette et les deux cliquets à billes, sont sollicités n'est pas permutable. Il faut tout d'abord engager la languette dans son logement, puis seulement les cliquets à billes peuvent permettre le verrouillage du premier maillon de réglage sur le second maillon de réglage. L'inverse n'est pas possible. Un tel système de rallonge plongeur nécessite donc que l'utilisateur apprenne à s'en servir et requiert de la part de l'utilisateur une réelle attention au moment où il le manipule. Enfin, les cliquets à billes sont des systèmes qui s'encrassent facilement et qui ne sont pas très fiables.The locking means described above have three disadvantages. First, it is necessary to present the first adjustment link in a specific position, in this case substantially perpendicular to the plane of the clasp cover, so that the tongue can properly engage in the corresponding housing. Failure to comply with this condition, the extension plunger is not properly closed and the bracelet can open unexpectedly, at the risk of losing the watch. Then, the order in which the two locking means, namely the tongue and the two ball pawls, are solicited is not switchable. The tongue must first be engaged in its housing, and then only the ball pawls may allow the first link of the adjustment on the second link to be locked. The opposite is not possible. Such a plunger extension system therefore requires the user to learn to use it and requires the user to pay real attention when he manipulates it. Finally, ball pawls are systems that are easily clogged and are not very reliable.

La présente invention a pour but de remédier aux inconvénients susmentionnés ainsi qu'à d'autres encore en procurant un fermoir dont le fonctionnement soit plus fiable et plus intuitif.The present invention aims to overcome the aforementioned disadvantages as well as others by providing a clasp whose operation is more reliable and intuitive.

A cet effet, la présente invention concerne un fermoir pour bracelet de montre comprenant un couvercle relié d'un premier côté à un premier brin de bracelet et d'un second côté à un second brin de bracelet avec interposition d'un système déployant entre le second brin de bracelet et le couvercle du fermoir, ce système déployant comprenant un premier et un second maillons, le premier maillon étant articulé par une première extrémité sur le second brin de bracelet et par une seconde extrémité sur le second maillon, le second maillon étant lui-même articulé sur le couvercle du fermoir, le système déployant étant mobile entre une première position dans laquelle les premier et second maillons sont disposés de manière superposée dans le couvercle du fermoir, et une seconde position dans laquelle les premier et second maillons sont déployés, ce fermoir étant caractérisé en ce que, dans la première position du système déployant, le premier maillon est maintenu replié sur le second maillon, le premier maillon présentant à cet effet des premier et second points de verrouillage élastique pour son ancrage dans le couvercle du fermoir.For this purpose, the present invention relates to a clasp for a watch strap comprising a cover connected from one side to a first strand of a bracelet and from a second side to a second strand of bracelet with interposition of a deploying system between the second strand of bracelet and the clasp cover, this deploying system comprising a first and a second link, the first link being articulated by a first end on the second strap strand and by a second end on the second link, the second link being itself articulated on the cover of the clasp, the deploying system being movable between a first position wherein the first and second links are superimposed in the lid of the clasp, and a second position in which the first and second links are deployed, the clasp being characterized in that, in the first position of the deploying system, the first link is maintained folded on the second link, the first link having for this purpose first and second elastic locking points for anchoring in the lid of the clasp.

Grâce à ces caractéristiques, la présente invention procure un fermoir pour bracelet de montre dont le système déployant peut être verrouillé de manière très intuitive. Il suffit en effet de replier le premier maillon par-dessus le second maillon et d'engager l'ensemble dans le couvercle du fermoir. Par une simple pression sur le premier maillon, les premier et second points de verrouillage viennent ensuite s'ancrer spontanément dans le couvercle du fermoir pour garantir le blocage du système déployant. L'utilisateur n'a donc pas à se soucier de la manière dont il présente le premier maillon par rapport au couvercle du fermoir. En outre, il est totalement indifférent que le premier point de verrouillage soit sollicité avant ou après le second point de verrouillage. Enfin, les premier et second points de verrouillage fonctionnent selon le principe de l'élasticité. Ce sont des moyens à la fois simples et fiables.Thanks to these features, the present invention provides a watch strap clasp whose deploying system can be locked very intuitively. It suffices to fold the first link over the second link and engage the assembly in the lid of the clasp. By simply pressing on the first link, the first and second locking points are then anchored spontaneously in the cover of the clasp to ensure the locking of the deploying system. The user does not have to worry about how it presents the first link with respect to the lid of the clasp. In addition, it is totally irrelevant whether the first locking point is biased before or after the second locking point. Finally, the first and second locking points operate according to the principle of elasticity. These are simple and reliable ways.

On notera qu'au sens de la présente invention, le système déployant peut être utilisé indifféremment pour assurer le blocage du fermoir ou pour permettre le réglage de la longueur du bracelet.Note that for the purposes of the present invention, the deploying system can be used indifferently to ensure the locking of the clasp or to allow the adjustment of the length of the bracelet.

Selon une caractéristique complémentaire de l'invention, les premier et second points de verrouillage élastique sont commandés par un même moyen élastique.According to a complementary feature of the invention, the first and second elastic locking points are controlled by the same elastic means.

Le fait que les premier et second points de verrouillage soient commandés par un même moyen élastique garantit la simplicité de fabrication du fermoir selon l'invention et donc la fiabilité de son fonctionnement.The fact that the first and second locking points are controlled by the same elastic means ensures the simplicity of manufacture of the clasp according to the invention and therefore the reliability of its operation.

D'autres caractéristiques et avantages de la présente invention ressortiront plus clairement de la description détaillée qui suit d'un mode de réalisation du fermoir 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 est une vue en éclaté du fermoir selon la présente invention;
  • les figures 2A et 2B sont des vues en perspective du fermoir en position ouverte, respectivement en position fermée, et
  • la figure 3 est une vue en coupe du fermoir dans le sens de la longueur du bracelet.
Other features and advantages of the present invention will emerge more clearly from the detailed description which follows of an embodiment of the clasp according to the invention, this example being given purely by way of illustration and not only limiting, in connection with the drawing. annexed in which:
  • the figure 1 is an exploded view of the clasp according to the present invention;
  • the Figures 2A and 2B are perspective views of the clasp in the open position, respectively in the closed position, and
  • the figure 3 is a sectional view of the clasp in the direction of the length of the bracelet.

La présente invention procède de l'idée générale inventive qui consiste à équiper un fermoir de bracelet de montre d'un système déployant qui permet au choix de faire varier la longueur du bracelet entre une première dimension dite de porter dans laquelle le système déployant est verrouillé dans le couvercle du fermoir et une seconde dimension dite d'enfilement dans laquelle le système déployant est ouvert, ou bien d'augmenter la longueur du bracelet pour permettre à son utilisateur de tenir compte de l'épaisseur d'une combinaison de plongée. Conformément à l'invention, le système déployant comprend un premier maillon articulé à une première extrémité à un brin du bracelet et à une seconde extrémité à un second maillon qui est lui-même articulé au couvercle de fermoir. Ce système déployant passe d'une première position dans laquelle les premier et second maillons sont disposés de manière superposée dans le couvercle du fermoir, à une seconde position dans laquelle les premier et second maillons sont déployés. Pour le verrouillage du système déployant dans le couvercle du fermoir, le premier maillon présente des premier et second points de verrouillage élastique par lesquels le premier maillon vient s'ancrer spontanément dans le couvercle du fermoir pour garantir le blocage du système déployant. Un tel système de verrouillage est d'une utilisation très intuitive. Il n'est nulle nécessité de placer le premier maillon dans une position déterminée pour permettre le verrouillage du système déployant. Il suffit à l'utilisateur de replier le premier maillon sur le second maillon et d'exercer une légère pression sur le premier maillon pour que le système déployant dans son ensemble se verrouille spontanément dans le couvercle du fermoir. Par ailleurs, l'ordre dans lequel les premier et second points de verrouillage sont sollicités n'a aucune espèce d'importance. Enfin, les points de verrouillage fonctionnent selon le principe de l'élasticité. Ils sont donc simples et par conséquent fiables.The present invention proceeds from the general inventive idea of equipping a watch bracelet clasp with a deploying system that allows the choice to vary the length of the bracelet between a first dimension known as wearing in which the deploying system is locked. in the cover of the clasp and a second so-called threading dimension in which the deploying system is open, or to increase the length of the bracelet to allow the user to take into account the thickness of a diving suit. According to the invention, the deploying system comprises a first link articulated at a first end to a strand of the bracelet and at a second end to a second link which is itself hinged to the clasp cover. This deploying system passes from a first position in which the first and second links are arranged superimposed in the lid of the clasp, at a second position in which the first and second links are deployed. For locking the deploying system in the lid of the clasp, the first link has first and second resilient locking points by which the first link is anchored spontaneously in the cover of the clasp to ensure the locking of the deploying system. Such a locking system is very intuitive to use. There is no need to place the first link in a determined position to allow the locking of the deploying system. It is sufficient for the user to fold the first link on the second link and to exert a slight pressure on the first link so that the deploying system as a whole locks spontaneously in the lid of the clasp. Moreover, the order in which the first and second locking points are solicited has no importance. Finally, the locking points operate according to the principle of elasticity. They are therefore simple and therefore reliable.

La figure 1 est une vue en perspective et en éclaté d'un fermoir de bracelet de montre selon l'invention. Désigné dans son ensemble par la référence numérique générale 1, ce fermoir comprend essentiellement un couvercle 2 et un système déployant 4. Le couvercle 2 est relié d'un premier côté à un premier brin de bracelet 6 dont un seul maillon est visible au dessin avec interposition d'un système de fermeture à boucle déployante 8 dont la structure est connue en soi et qui ne sera donc pas décrit davantage ici. On notera que le système de fermeture à boucle déployante 8 peut être omis et que le couvercle 2 peut être relié au premier brin de bracelet 6 directement. Le couvercle 2 est relié d'un second côté à un second brin de bracelet 10 dont un seul maillon est visible au dessin avec interposition du système déployant 4 selon l'invention.The figure 1 is a perspective and exploded view of a watchband clasp according to the invention. Designated as a whole by the general numerical reference 1, this clasp essentially comprises a lid 2 and a deploying system 4. The lid 2 is connected on one side to a first strand of bracelet 6, of which only one link is visible in the drawing with interposition of a clasp closure system 8 whose structure is known per se and therefore will not be described further here. Note that the clasp closure system 8 can be omitted and that the lid 2 can be connected to the first bracelet strand 6 directly. The lid 2 is connected on the second side to a second strand of bracelet 10, a single link is visible in the drawing with interposition of the deploying system 4 according to the invention.

Le système déployant 4 selon l'invention est formé d'un premier maillon 12 et d'un second maillon 14. Le premier maillon 12 est articulé par une première extrémité au second brin de bracelet 10 et par une seconde extrémité au second maillon 14 qui est lui-même articulé au couvercle 2. Plus précisément, le premier maillon 12 est muni d'un premier et d'un deuxième axes d'articulation 16 et 18. Ces axes d'articulation 16 et 18 sont parallèles entre eux et s'étendent transversalement aux brins de bracelet 6 et 10. Le premier maillon 12 du système déployant 4 est relié au second brin de bracelet 10 par le premier axe d'articulation 16. Le premier maillon 12 est associé au second maillon 14 par le deuxième axe d'articulation 18. Le second maillon 14 est relié à son tour au couvercle 2 du fermoir 1 par un troisième axe d'articulation 20.The deploying system 4 according to the invention is formed of a first link 12 and a second link 14. The first link 12 is articulated by a first end to the second strap strand 10 and by a second end to the second link 14 which is itself hinged to the cover 2. More specifically, the first link 12 is provided with a first and a second hinge pins 16 and 18. These hinge pins 16 and 18 are parallel to each other and s' extend transversely to the bracelet strands 6 and 10. The first link 12 of the deploying system 4 is connected to the second bracelet strand 10 by the first hinge axis 16. The first link 12 is associated with the second link 14 by the second axis 18. The second link 14 is connected in turn to the lid 2 of the clasp 1 by a third hinge axis 20.

Le système déployant 4 est mobile entre une première position verrouillée (figure 2B) dans laquelle les premier et deuxième maillons 12 et 14 sont disposés de manière superposée dans le couvercle 2 du fermoir 1, et une seconde position ouverte (figure 2A) dans laquelle les premier et deuxième maillons 12 et 14 sont déployés. Le système déployant 4 permet ainsi de faire varier la longueur du bracelet de la montre entre une première dimension dite de porter dans laquelle le système déployant 4 est verrouillé dans le couvercle 2 du fermoir 1 afin que l'utilisateur ne puisse perdre sa montre, et une seconde dimension dite d'enfilement dans laquelle le système déployant est ouvert et qui permet à l'utilisateur de passer sa montre par-dessus sa main. Une autre façon de considérer le rôle du système déployant 4 selon l'invention revient à dire que ce système déployant 4 permet, en position déployée, d'augmenter la longueur du bracelet pour permettre à son utilisateur de tenir compte de l'épaisseur d'une combinaison de plongée. Dans ce cas, on pourra désigner ce système déployant 4 par l'expression consacrée de rallonge plongeur.The deploying system 4 is movable between a first locked position ( Figure 2B ) in which the first and second links 12 and 14 are arranged superimposed in the lid 2 of the clasp 1, and a second open position ( Figure 2A ) in which the first and second links 12 and 14 are deployed. The deploying system 4 thus makes it possible to vary the length of the wristwatch of the watch between a first so-called wearing dimension in which the deploying system 4 is locked in the cover 2 of the clasp 1 so that the user can not lose his watch, and a second so-called threading dimension in which the deploying system is open and which allows the user to pass his watch over his hand. Another way of considering the role of the deploying system 4 according to the invention is to say that this deploying system 4 allows, in the deployed position, to increase the length of the bracelet to allow the user to take into account the thickness of the a wetsuit. In this case, we can designate this deploying system 4 by the dedicated expression of extension plunger.

Lorsque le système déployant 4 est dans la situation où les premier et second maillons 12 et 14 sont repliés à l'intérieur du couvercle 2 du fermoir 1, il est nécessaire que ces premier et second maillons 12 et 14 soient maintenus de façon sûre pour éviter tout risque que le bracelet ne glisse le long du poignet de l'utilisateur et que la montre ne tombe au sol. A cet effet, le premier maillon 12 est maintenu replié sur le second maillon 14 et présente des premier et second points de verrouillage élastique, respectivement 22 et 24, pour son ancrage dans le couvercle 2 du fermoir 1.When the deploying system 4 is in the situation where the first and second links 12 and 14 are folded inside the cover 2 of the clasp 1, it is necessary for these first and second links 12 and 14 to be held securely to avoid any risk that the bracelet slips along the wrist of the user and that the watch does not fall to the ground. For this purpose, the first link 12 is held folded on the second link 14 and has first and second elastic locking points, respectively 22 and 24, for anchoring in the cover 2 of the clasp 1.

Le premier point de verrouillage élastique 22 comprend un cliquet 26 dont la forme générale s'apparente à celle d'un V et qui comprend deux bras 28 reliés entre eux par un bec 30. Ce cliquet 26 est engagé dans une échancrure 32 prévue à cet effet dans le premier maillon 12, au moins un et préférentiellement deux ressorts 34 étant interposés entre le premier maillon 12 et le cliquet 26. Du côté du premier maillon 12, les deux ressorts 34 sont engagés dans deux logements 36 ménagés dans le maillon 12 et desquels ils font saillie. Du côté du cliquet 26, les deux ressorts 34 viennent en appui en fond d'une rainure 38. On notera que les ressorts 34 sont montés à l'état comprimé entre le cliquet 26 et le premier maillon 12. Le cliquet 26 est couplé avec le premier maillon 12 via le deuxième axe d'articulation 18 par lequel le premier maillon 12 est associé au second maillon 14. Le cliquet 26 présente à cette fin un premier trou oblong 40 pour le passage du deuxième axe d'articulation 18. On comprendra donc que, du fait que le deuxième axe d'articulation 18 est passé dans un trou oblong 40, le cliquet 26 est mobile dans le sens de la longueur du bracelet entre une position de repos dans laquelle il est maintenu par les ressorts 34, et une position active dans laquelle il est déplacé de sa position de repos à l'encontre de la force de rappel élastique des ressorts 34 et vient en prise avec une goupille de blocage 42 prévue dans le couvercle 2 du fermoir 1.The first elastic locking point 22 comprises a pawl 26 whose general shape is similar to that of a V and which comprises two arms 28 interconnected by a spout 30. This pawl 26 is engaged in a notch 32 provided for this purpose. effect in the first link 12, at least one and preferably two springs 34 being interposed between the first link 12 and the pawl 26. On the side of the first link 12, the two springs 34 are engaged in two recesses 36 formed in the link 12 and from which they project. On the side of the pawl 26, the two springs 34 bear against the bottom of a groove 38. It will be noted that the springs 34 are mounted in the compressed state between the pawl 26 and the first link 12. The pawl 26 is coupled with the first link 12 via the second hinge axis 18 by which the first link 12 is associated with the second link 14. The pawl 26 has for this purpose a first oblong hole 40 for the passage of the second hinge axis 18. It will be understood whereas, since the second hinge pin 18 has passed into an oblong hole 40, the pawl 26 is movable in the length direction of the bead between a rest position in which it is held by the springs 34, and an active position in which it is moved from its rest position against the elastic restoring force of the springs 34 and engages with a locking pin 42 provided in the lid 2 of the clasp 1.

Par ailleurs, le premier maillon 12 présente un second trou oblong 44 pour le passage du deuxième axe d'articulation 18 par lequel le premier maillon 12 est associé au second maillon 14. Enfin, le premier maillon 12 est pourvu, du côté de sa première extrémité, du second point de verrouillage élastique 24 comprenant un cran 46 par lequel le premier maillon 12 vient en prise avec un tube 48 solidaire du couvercle 2 du fermoir 1. Ce tube 48 sert également d'élément de guidage au troisième axe d'articulation 20 par lequel le deuxième maillon 14 est associé au couvercle 2 du fermoir 1.Furthermore, the first link 12 has a second oblong hole 44 for the passage of the second articulation axis 18 by which the first link 12 is associated with the second link 14. Finally, the first link 12 is provided, on the side of its first link end, the second elastic locking point 24 comprising a notch 46 by which the first link 12 engages a tube 48 secured to the lid 2 of the clasp 1. This tube 48 also serves as a guide element to the third axis of articulation 20 by which the second link 14 is associated with the lid 2 of the clasp 1.

On notera enfin que le second maillon 14 a la forme d'un brancard muni de deux bras 50 entre lesquels le premier maillon 12 vient se loger dans la première position du système déployant 4.Note finally that the second link 14 has the shape of a stretcher provided with two arms 50 between which the first link 12 is housed in the first position of the deploying system 4.

Le fonctionnement du système déployant 4 selon l'invention est le suivant. Lorsque le système déployant 4 passe de sa seconde position dans laquelle les premier et second maillons 12 et 14 sont déployés à sa première position dans laquelle les premier et second maillons 12 et 14 sont disposés de manière superposée dans le couvercle 2 du fermoir 1, le premier maillon 12 se replie progressivement entre les bras 50 du second maillon 14 et l'ensemble formé par les premier et second maillons 12 et 14 vient se loger à l'intérieur du couvercle 2. Il suffit ensuite d'exercer une pression sur l'ensemble des premier et second maillons superposés 12 et 14 pour que le premier maillon 12 vienne s'ancrer par ses premier et second points de verrouillage élastique 22 et 24 dans le couvercle 2 du fermoir 1. Sous l'effet de cette poussée, le cliquet 26 se déplace dans sa position active. Plus précisément, le cliquet 26 vient buter par son bec 30 contre la goupille de blocage 42 solidaire du couvercle 2 du fermoir 1 et se déplace axialement dans le sens de la longueur du bracelet en direction du premier maillon 12. Au cours de ce mouvement, le cliquet 26 va à l'encontre de la force de rappel élastique des ressorts 34 qui se compriment. Lorsque le premier maillon 12 est complètement replié à l'intérieur du couvercle 2 du fermoir 1, le bec 30 du cliquet 26 glisse sous la goupille de blocage 42. Le cliquet 26 n'étant plus retenu, les ressorts 34 se détendent et forcent le bec 30 du cliquet 26 sous la goupille de blocage 42. Au cours de ce mouvement, le cliquet 26 s'éloigne à nouveau du premier maillon 12 et retourne dans sa position de repos. Toujours au cours du mouvement de rabattement du premier maillon 12 sur le second maillon 14 à l'intérieur du couvercle 2 du fermoir 1, le premier maillon 12 vient par son cran 46 en prise avec le tube 48. Ce mouvement est facilité par le fait que le premier maillon 12 est articulé au second maillon 14 par le deuxième axe d'articulation 18 qui passe au travers du premier maillon 12 via le second trou oblong 44. Ce montage autorise le premier maillon 12 à se déplacer dans le sens de la longueur du bracelet en direction du couvercle 2 du fermoir 1. Au cours de ce mouvement, le premier maillon 12 comprime les ressorts 34 contre le fond de la rainure 38 délimitée par les deux bras 28 du cliquet 26 qui est immobile. Une fois que le maillon 12 est cranté sur le tube 48, les ressorts 34 reviennent dans leur position de repos. A ce stade, le système déployant 4 selon l'invention est verrouillé sur le couvercle 2 du fermoir 1 selon ses premier et second points de verrouillage élastique 22 et 24.The operation of the deploying system 4 according to the invention is as follows. When the deploying system 4 moves from its second position wherein the first and second links 12 and 14 are deployed at its first position in which the first and second links 12 and 14 are superimposedly arranged in the cover 2 of the clasp 1, the first link 12 folds progressively between the arms 50 the second link 14 and the assembly formed by the first and second links 12 and 14 is housed inside the cover 2. It is then sufficient to exert pressure on all of the first and second superimposed links 12 and 14 so that the first link 12 comes to anchor by its first and second elastic locking points 22 and 24 in the lid 2 of the clasp 1. Under the effect of this thrust, the pawl 26 moves in its active position. More specifically, the pawl 26 abuts by its beak 30 against the locking pin 42 integral with the lid 2 of the clasp 1 and moves axially in the direction of the length of the bracelet towards the first link 12. During this movement, the pawl 26 goes against the elastic restoring force of the springs 34 which compress. When the first link 12 is completely folded inside the cover 2 of the clasp 1, the tip 30 of the pawl 26 slides under the locking pin 42. The pawl 26 is no longer retained, the springs 34 relax and force the 30 of the pawl 26 under the locking pin 42. During this movement, the pawl 26 moves away from the first link 12 and returns to its rest position. Always during the folding movement of the first link 12 on the second link 14 inside the lid 2 of the clasp 1, the first link 12 comes by its notch 46 in engagement with the tube 48. This movement is facilitated by the fact that the first link 12 is articulated to the second link 14 by the second hinge pin 18 which passes through the first link 12 via the second oblong hole 44. This assembly allows the first link 12 to move in the lengthwise direction. the bracelet in the direction of the lid 2 of the clasp 1. During this movement, the first link 12 compresses the springs 34 against the bottom of the groove 38 defined by the two arms 28 of the pawl 26 which is stationary. Once the link 12 is notched on the tube 48, the springs 34 return to their rest position. At this point, the 4 unfolding system according to the invention is locked on the lid 2 of the clasp 1 according to its first and second elastic locking points 22 and 24.

L'ordre dans lequel les premier et second points de verrouillage 22 et 24 sont sollicités au cours du mouvement de fermeture du système déployant 4 est indifférent. Autrement dit, le premier maillon 12 peut d'abord se verrouiller sur le couvercle 2 du fermoir 1 par son cliquet 26 puis se verrouiller sur ce même couvercle 2 par son cran 46 ou inversement.The order in which the first and second locking points 22 and 24 are biased during the closing movement of the deploying system 4 is indifferent. In other words, the first link 12 can first be locked on the lid 2 of the clasp 1 by its pawl 26 and then lock on the same cover 2 by its notch 46 or vice versa.

Pour l'ouverture du système déployant 4, il faut soulever le premier maillon 12 par sa première extrémité par laquelle il est articulé au second brin de bracelet 10. Ce faisant, le premier maillon 12 se déplace légèrement en direction du couvercle 2 du fermoir 1 en comprimant les ressorts 34 contre le cliquet 26 qui est immobile, ce qui permet au cran 46 de se dégager de sa prise avec le tube 48. Quand on continue de tirer sur le premier maillon 12, le cliquet 26 se déplace élastiquement en direction du premier maillon 12 en comprimant les ressorts 34, ce qui permet au bec 30 du cliquet 26 de se désengager de son accouplement avec la goupille de blocage 42.For the opening of the deploying system 4, it is necessary to lift the first link 12 by its first end by which it is articulated to the second strand of bracelet 10. In doing so, the first link 12 moves slightly towards the cover 2 of the clasp 1 by compressing the springs 34 against the pawl 26 which is stationary, which allows the notch 46 to disengage from its grip with the tube 48. When one continues to fire on the first link 12, the pawl 26 moves elastically towards the first link 12 by compressing the springs 34, which allows the spout 30 of the pawl 26 to disengage from its coupling with the locking pin 42.

Il va de soi que la présente invention n'est pas limitée au mode de réalisation qui vient d'être décrit et que diverses modifications et variantes simples peuvent être envisagées par l'homme du métier sans sortir du cadre des revendications annexées à la présente demande de brevet. En particulier, le tube 48 peut être prévu en un autre endroit du couvercle 2 du fermoir 1, indépendamment du troisième axe d'articulation 20.It goes without saying that the present invention is not limited to the embodiment which has just been described and that various modifications and simple variants can be envisaged by those skilled in the art without departing from the scope of the claims appended to the present application. patent. In particular, the tube 48 may be provided at another location of the lid 2 of the clasp 1, independently of the third hinge axis 20.

Claims (9)

Fermoir pour bracelet de montre comprenant un couvercle (2) relié d'un premier côté à un premier brin de bracelet (6) et d'un second côté à un second brin de bracelet (10) avec interposition d'un système déployant (4) entre le second brin de bracelet (10) et le couvercle (2) du fermoir (1), ce système déployant (4) comprenant un premier et un second maillons (12, 14), le premier maillon (12) étant articulé par une première extrémité sur le second brin de bracelet (10) et par une seconde extrémité sur le second maillon (14), le second maillon (14) étant lui-même articulé sur le couvercle (2) du fermoir (1), le système déployant (4) étant mobile entre une première position dans laquelle les premier et second maillons (12, 14) sont disposés de manière superposée dans le couvercle (2) du fermoir (1), et une seconde position dans laquelle les premier et second maillons (12, 14) sont déployés, ce fermoir (1) étant caractérisé en ce que, dans la première position du système déployant (4), le premier maillon (12) est maintenu replié sur le second maillon (14), le premier maillon (12) présentant à cet effet des premier et second points de verrouillage élastique (22, 24) pour son ancrage dans le couvercle (2) du fermoir (1).Clasp for a watchband comprising a cover (2) connected on one side to a first strand of bracelet (6) and on the other side to a second strand of bracelet (10) with interposition of a deploying system (4) ) between the second strand of bracelet (10) and the lid (2) of the clasp (1), this unfolding system (4) comprising a first and a second link (12, 14), the first link (12) being articulated by a first end on the second strand of bracelet (10) and a second end on the second link (14), the second link (14) itself being hinged to the cover (2) of the clasp (1), the system unfolding member (4) being movable between a first position in which the first and second links (12, 14) are arranged superimposed in the lid (2) of the clasp (1), and a second position in which the first and second links (12, 14) are deployed, this clasp (1) being characterized in that , in the first pos 1 of the deploying system (4), the first link (12) is held folded over the second link (14), the first link (12) having for this purpose first and second elastic locking points (22, 24) for its anchoring in the lid (2) of the clasp (1). Fermoir selon la revendication 1, caractérisé en ce que les premier et second points de verrouillage élastique (22, 24) sont commandés par un même moyen élastique.Clasp according to claim 1, characterized in that the first and second elastic locking points (22, 24) are controlled by the same elastic means. Fermoir selon la revendication 2, caractérisé en ce que le moyen de verrouillage élastique comprend au moins un ressort (34).Clasp according to claim 2, characterized in that the elastic locking means comprises at least one spring (34). Fermoir selon la revendication 3, caractérisé en ce que le premier maillon (12) comprend, du côté de sa seconde extrémité, un cliquet (26), ce cliquet (26) étant mobile dans le sens de la longueur du bracelet entre une position de repos dans laquelle il est maintenu par le ressort (34), et une position active dans laquelle il est déplacé de sa position de repos à l'encontre de la force de rappel élastique du ressort (34) et vient en prise avec une goupille de blocage (42) prévue dans le couvercle (2) du fermoir (1).Clasp according to claim 3, characterized in that the first link (12) comprises, on the side of its second end, a pawl (26), this pawl (26) being movable in the direction of the length of the bracelet between a position of rest in which it is held by the spring (34), and an active position in which it is moved from its resting position against the elastic return force of the spring (34) and engages with a locking pin (42) provided in the lid (2) of the clasp (1). Fermoir selon la revendication 4, caractérisé en ce que le premier maillon (12) présente, du côté de sa seconde extrémité, une échancrure (32) dans laquelle est engagé le cliquet (26) avec interposition du ressort (34) entre le cliquet (26) et le premier maillon (12), le cliquet (26) étant couplé avec le premier maillon (12) via un deuxième axe d'articulation (18) par lequel le premier maillon (12) est associé au second maillon (14), le cliquet (26) présentant un premier trou oblong (40) pour le passage du deuxième axe d'articulation (18).Clasp according to claim 4, characterized in that the first link (12) has, on the side of its second end, a notch (32) in which is engaged the pawl (26) with interposition of the spring (34) between the pawl ( 26) and the first link (12), the pawl (26) being coupled with the first link (12) via a second hinge axis (18) through which the first link (12) is associated with the second link (14). , the pawl (26) having a first oblong hole (40) for the passage of the second hinge axis (18). Fermoir selon l'une quelconque des revendications 2 à 5, caractérisé en ce que le premier maillon (12) présente un second trou oblong (44) pour le passage du deuxième axe d'articulation (18) par lequel le premier maillon (12) est associé au second maillon (14).Clasp according to any one of claims 2 to 5, characterized in that the first link (12) has a second oblong hole (44) for the passage of the second axis of articulation (18) by which the first link (12) is associated with the second link (14). Fermoir selon la revendication 6, caractérisé en ce que le premier maillon (12) est pourvu, du côté de sa première extrémité, d'un cran (46) par lequel il vient en prise avec un tube (48) solidaire du couvercle (2) du fermoir (1).Clasp according to claim 6, characterized in that the first link (12) is provided at its first end with a notch (46) by which it engages with a tube (48) secured to the cover (2). ) of the clasp (1). Fermoir selon la revendication 7, caractérisé en ce que le tube (48) sert d'élément de guidage à un troisième axe d'articulation (20) par lequel le second maillon (14) est associé au couvercle (2) du fermoir (1).Clasp according to Claim 7, characterized in that the tube (48) serves as a guide element for a third hinge axis (20) through which the second link (14) is associated with the lid (2) of the clasp (1). ). Fermoir selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le second maillon (14) a la forme d'un brancard muni de deux bras (50) entre lesquels le premier maillon (12) vient se loger dans la première position du système déployant (4).Clasp according to any one of claims 1 to 8, characterized in that the second link (14) has the shape of a stretcher provided with two arms (50) between which the first link (12) is housed in the first position of the deploying system (4).
EP11192832.1A 2011-12-09 2011-12-09 Watch strap clasp Withdrawn EP2601855A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP11192832.1A EP2601855A1 (en) 2011-12-09 2011-12-09 Watch strap clasp
EP12194339.3A EP2601857B1 (en) 2011-12-09 2012-11-27 Clasp for watch strap or belt
US13/693,836 US8739369B2 (en) 2011-12-09 2012-12-04 Clasp for a watch bracelet or a belt
JP2012269029A JP5580390B2 (en) 2011-12-09 2012-12-10 Watch band or belt clasp
CN201210528014.1A CN103156340B (en) 2011-12-09 2012-12-10 Clasp for watch strap or belt
HK13113957.9A HK1186359A1 (en) 2011-12-09 2013-12-16 Clasp for a watch bracelet or a belt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11192832.1A EP2601855A1 (en) 2011-12-09 2011-12-09 Watch strap clasp

Publications (1)

Publication Number Publication Date
EP2601855A1 true EP2601855A1 (en) 2013-06-12

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ID=47216158

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EP11192832.1A Withdrawn EP2601855A1 (en) 2011-12-09 2011-12-09 Watch strap clasp
EP12194339.3A Active EP2601857B1 (en) 2011-12-09 2012-11-27 Clasp for watch strap or belt

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP12194339.3A Active EP2601857B1 (en) 2011-12-09 2012-11-27 Clasp for watch strap or belt

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US (1) US8739369B2 (en)
EP (2) EP2601855A1 (en)
JP (1) JP5580390B2 (en)
CN (1) CN103156340B (en)
HK (1) HK1186359A1 (en)

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US10722006B2 (en) 2016-12-05 2020-07-28 Rolex Sa Device for adjusting the length of a bracelet
CN112273810A (en) * 2020-10-30 2021-01-29 歌尔科技有限公司 Belt body connecting structure and wrist-wearing equipment

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Also Published As

Publication number Publication date
CN103156340A (en) 2013-06-19
HK1186359A1 (en) 2014-03-14
EP2601857A1 (en) 2013-06-12
US20130145586A1 (en) 2013-06-13
JP2013121508A (en) 2013-06-20
EP2601857B1 (en) 2015-01-07
US8739369B2 (en) 2014-06-03
JP5580390B2 (en) 2014-08-27
CN103156340B (en) 2015-01-21

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