EP2502516B1 - Bracelet clasp - Google Patents

Bracelet clasp Download PDF

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Publication number
EP2502516B1
EP2502516B1 EP11159074.1A EP11159074A EP2502516B1 EP 2502516 B1 EP2502516 B1 EP 2502516B1 EP 11159074 A EP11159074 A EP 11159074A EP 2502516 B1 EP2502516 B1 EP 2502516B1
Authority
EP
European Patent Office
Prior art keywords
lever
clasp
arm
cap
bolt
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
EP11159074.1A
Other languages
German (de)
French (fr)
Other versions
EP2502516A1 (en
Inventor
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 EP11159074.1A priority Critical patent/EP2502516B1/en
Priority to US13/415,045 priority patent/US8561263B2/en
Priority to JP2012054133A priority patent/JP5912690B2/en
Priority to CN201210073766.3A priority patent/CN102687937B/en
Publication of EP2502516A1 publication Critical patent/EP2502516A1/en
Priority to HK13103545.9A priority patent/HK1176527A1/en
Application granted granted Critical
Publication of EP2502516B1 publication Critical patent/EP2502516B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/18—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
    • 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
    • Y10T24/4745—End clasp
    • 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 bracelet clasp comprising at least two arms articulated to each other, a first arm whose one end is attached to one strand of the bracelet, the other end being articulated on a first end of a second folding arm traversed at its second end by a shaft around which is articulated a clevis provided with first and second flaps and to which is attached another strand of the bracelet, and a lever closure system for locking said first and second arms; .
  • This clasp also called clasp, is well known in the state of the art and usually includes one or two pushers as a closure system. However, it has sometimes been proposed a lever to replace conventional pushers and this is what the present invention will take advantage.
  • a clasp implementing a control lever and corresponding in outline to the summary description given above is described in document EP 1654950 .
  • This clasp comprises at least two branches articulated to one another by one of their respective ends.
  • One of the free ends of these branches comprises a lever articulated about an axis parallel to the hinge axis of the branches and secured to a hook, the other of the free ends of these branches having a hooking element shaped to allow the hook to engage with it, to maintain the branches in the folded position.
  • the lever comprises elastic means for exerting a torque on it and stop means for limiting its pivoting, under the effect of the torque, about said axis, in a position corresponding at least to the engagement of the locking hook with the hanging element, in which elastic means are under tension, so that the lever must pivot against the elastic means to engage and release the locking hook of the fastening element.
  • a lever is pivotally mounted on the yoke by means of a first hinge, said lever controlling a latch.
  • said latch being arranged to cooperate with a hook which is equipped with the first arm and lock the clasp when the latter is pushed into the closed position, resilient means being arranged to hold the lever unlatched and the latch engaged with the hook when said lever is not manually operated.
  • the figure 1 is an exploded view of the clasp of the invention and the various parts composing it.
  • the clasp comprises a first arm 8, one end 15 is attached to a strand 14 of the bracelet, the bracelet being represented here by a first link.
  • the other end 16 of the first arm 8 is articulated by means of a shaft 9 on a first end 19 of a second folding arm 7.
  • the second arm 7 is formed of two longitudinal members 35 and 36 between which the first arm 8 is inserted when the clasp is in the closed position.
  • This second arm 7 is traversed at its second end 17 and 18 by a shaft 11 around which is articulated a yoke 1 provided with first and second flaps 20 and 21.
  • To this yoke 1 is attached another strand of the bracelet not shown in FIG.
  • the shaft 11 is provided with a notch 37 and is held in place between the holes 38 and 39 respectively drilled in the flaps 20 and 21 of the yoke 1, by a barrel 10 provided with a throat 40 .
  • the figure 1 shows again that the clasp of the invention comprises a lever closure system 2 for locking the first and second arms 8 and 7.
  • FIG 1 shows indeed that a lever 2 is pivotally mounted on the yoke 1 by means of a first joint consisting of two small pins 3a penetrating holes 41 formed in the flaps 20 and 21 of the yoke 1.
  • the figure 1 and more particularly the Figures 3 to 8 show that the lever 2 controls a latch 4 itself pivotally mounted on the yoke 1 by means of a second hinge, distinct from the first, and consisting of two small pins 3b. These small pins 3b penetrate holes in the flaps 20 and 21 of the yoke 1, these holes are not visible on the figure 1 .
  • the control of the lock 4 by the lever 2 is by an outgrowth 28 formed on the back of the lever 2.
  • the latch 4 is arranged to cooperate with a hook 22 which is equipped with the first arm 8 and to lock the clasp when the latter is pushed in. closing position.
  • the figures show that the clasp is equipped with elastic means 5 arranged to hold the lever 2 not raised and the latch 4 engaged with the hook 22 when the lever is not manually operated.
  • these elastic means 5 are in the form of a plate attached to the yoke 1 by means of screws 26 and 27 as seen in FIG. figure 1 .
  • This plate 5 is cut in the shape of a rake and has a central blade 23 pressing a boss 50 formed on the back of the lever 2, which is well highlighted on the Figures 5, 6 and 7 .
  • This same plate 5 also has two outer blades 24 and 25 pressing on protrusions 30 formed at the rear of the latch 4, which is well highlighted on the Figures 4 and 8 .
  • the same Figures 4 and 8 show one of the screws 27 fixing the plate 5 to the yoke 1.
  • lever 2 is a plate provided with a gripping tab 31 which serves to lift the lever when the clasp must be open. This plate, when it is not activated, merges with the top of the screed 1.
  • first and second articulations around which the lever 2 and the latch 4 pivot respectively are mounted on the yoke 1.
  • the first and second flaps 20 and 21 forming part of the yoke 1 will be used. to go along these joints.
  • the small pins 3a and 3b constituting these joints are mounted from outside the flaps in holes formed for this purpose and then laser welded.
  • the outer portions of the holes are retouched to make these joints invisible. As a result, only the hole 38 shown in figure 2 , thanks to which the shaft 11 can be extracted and the clasp disassembled.
  • the figure 3 is a vertical section showing that the axis of rotation of the lever 2 and the axis of rotation of the latch 4 are distinct from each other, these axes of rotation respectively comprising the shafts 3a and 3b mounted in the flaps 20 and 21 of the screed 1.
  • the implementation of these two axes, which do not exist in the clasp EP 1 654 950 cited above, is the main idea of the present invention to prevent lifting of the lever when closing the clasp.
  • the figure 4 is a vertical section passing through one of the outer blades 24 and 25 composing the elastic means 5 fixed to the yoke 1 by two screws 27 and 26.
  • the present section passes through the blade 24 and the screw 27.
  • the lever 2 With the aid of the tab 31, the lever 2 is raised in the direction of the arrow A.
  • the protrusion 28 which is provided with the lever 2 rotates the latch 4 by arming the blade 24.
  • the figure 5 is a vertical section passing through the central blade 23 of the elastic means 5. This section shows that the central blade 23 is armed by a boss 50 of the lever 2, the latter being always maintained raised. It can be seen that the latch 4 has escaped from the hook 22 that the first arm 8 carries. The second arm 7 of the clasp, whose end 18 is seen here, is no longer retained pressed to the first arm 8 and the clasp can is open.
  • the figure 6 is a vertical sectional view showing the position of the components of the clasp just before locking the clasp.
  • the cut passes through the central blade 23 of the elastic means 5.
  • the lever 2 is no longer lifted manually and turned around the shaft 3a in the direction of the arrow B recalled that it is by the blade 23.
  • the figure 6 shows that the surface of the lever 2 has a solution of continuity with the surface of the yoke 1 and that it merges with it.
  • the figure 6 shows again that just before locking the clasp the bolt head 4 is in contact with the top of the hook 22 of the first arm 8.
  • the figure 7 is a vertical section through the central blade 23 of the elastic means 5. It shows the position of the components of the clasp in a locked situation. Manual pressure exerted on the yoke 1 led the head of the latch 4 to be placed under the hook 22 of the first arm 8 leading to the locking of the clasp. In this situation the first arm 8 rests between the longitudinal members 35 and 36 of the second arm 7 and the shaft 11 passing through the second ends 17 and 18 of said second arm 7 is at the bottom of a groove 51 made towards the end of the first arm 8.
  • figure 8 is a vertical section through the outer blade 24 of the elastic means 5 and the fixing screw 27, the clasp being locked and the lever 2 folded on the yoke 1.
  • This figure shows the support of the blade 24 against the protrusion 30 of the latch 4 which keeps the head of the latch 4 in engagement with the hook 22 of the first arm 8.

Landscapes

  • Clamps And Clips (AREA)
  • Buckles (AREA)
  • Adornments (AREA)

Description

La présente invention est relative à un fermoir de bracelet comprenant au moins deux bras articulés l'un à l'autre, un premier bras dont une extrémité est attachée à un brin du bracelet, l'autre extrémité étant articulée sur une première extrémité d'un second bras dépliant traversé à sa seconde extrémité par un arbre autour duquel est articulée une chape munie de premier et second rabats et à laquelle est attaché un autre brin du bracelet, et un système de fermeture à levier permettant le verrouillage desdits premier et second bras.The present invention relates to a bracelet clasp comprising at least two arms articulated to each other, a first arm whose one end is attached to one strand of the bracelet, the other end being articulated on a first end of a second folding arm traversed at its second end by a shaft around which is articulated a clevis provided with first and second flaps and to which is attached another strand of the bracelet, and a lever closure system for locking said first and second arms; .

Ce fermoir, dit aussi à boucle déployante, est bien connu de l'état de la technique et comporte le plus souvent un ou deux poussoirs en tant que système de fermeture. Il a cependant été proposé quelquefois un levier pour remplacer les poussoirs classiques et c'est ce que la présente invention va mettre à profit.This clasp, also called clasp, is well known in the state of the art and usually includes one or two pushers as a closure system. However, it has sometimes been proposed a lever to replace conventional pushers and this is what the present invention will take advantage.

Un fermoir mettant en oeuvre un levier de commande et correspondant dans les grandes lignes à la description sommaire donnée ci-dessus est décrit dans le document EP 1654950 . Ce fermoir comporte au moins deux branches articulées l'une à l'autre par une de leurs extrémités respectives. L'une des extrémités libres de ces branches comporte un levier articulé autour d'un axe parallèle à l'axe d'articulation des branches et solidaire d'un crochet, l'autre des extrémités libres de ces branches comportant un élément d'accrochage conformé pour permettre au crochet de venir en prise avec lui, pour maintenir les branches en position repliée. Le levier comporte des moyens élastiques pour exercer un couple sur lui et des moyens de butée pour limiter son pivotement, sous l'effet du couple, autour dudit axe, dans une position correspondant au moins à l'engagement du crochet de verrouillage avec l'élément d'accrochage, dans laquelle les moyens élastiques sont sous tension, en sorte que le levier doit pivoter à l'encontre des moyens élastiques pour engager et pour dégager le crochet de verrouillage de l'élément d'accrochage.A clasp implementing a control lever and corresponding in outline to the summary description given above is described in document EP 1654950 . This clasp comprises at least two branches articulated to one another by one of their respective ends. One of the free ends of these branches comprises a lever articulated about an axis parallel to the hinge axis of the branches and secured to a hook, the other of the free ends of these branches having a hooking element shaped to allow the hook to engage with it, to maintain the branches in the folded position. The lever comprises elastic means for exerting a torque on it and stop means for limiting its pivoting, under the effect of the torque, about said axis, in a position corresponding at least to the engagement of the locking hook with the hanging element, in which elastic means are under tension, so that the lever must pivot against the elastic means to engage and release the locking hook of the fastening element.

Dans ce document antérieur, on a bien compris que s'il est nécessaire de lever le levier pour ouvrir le fermoir, ce qui est bien naturel et dans l'ordre des choses, il est aussi nécessaire de lever ce même levier pour fermer et bloquer le fermoir, ce qui complique l'opération de fermeture et la rend fastidieuse. C'est le but de la présente invention de n'avoir pas à manipuler le levier de commande lors de l'opération de fermeture et de proposer une construction permettant d'atteindre ce but.In this prior document, it was understood that if it is necessary to lift the lever to open the clasp, which is very natural and in the order of things, it is also necessary to lift the same lever to close and block the clasp, which complicates the closing operation and makes it tedious. It is the object of the present invention not to manipulate the control lever during the closing operation and to provide a construction to achieve this goal.

Ainsi la présente invention, outre qu'elle obéit à la définition générique exprimée au premier paragraphe de cette description, est remarquable en ce qu'un levier est monté pivotant sur la chape au moyen d'une première articulation, ledit levier commandant un verrou lui-même monté pivotant sur la dite chape au moyen d'une seconde articulation, distincte de la première, ledit verrou étant arrangé pour coopérer avec un crochet dont est équipé le premier bras et bloquer le fermoir quand ce dernier est poussé en position de fermeture, des moyens élastiques étant arrangés pour maintenir le levier non levé et le verrou en prise avec le crochet quand ledit levier n'est pas actionné manuellement.Thus the present invention, in addition to fulfilling the generic definition expressed in the first paragraph of this description, is remarkable in that a lever is pivotally mounted on the yoke by means of a first hinge, said lever controlling a latch. -even pivotally mounted on said yoke by means of a second hinge, distinct from the first, said latch being arranged to cooperate with a hook which is equipped with the first arm and lock the clasp when the latter is pushed into the closed position, resilient means being arranged to hold the lever unlatched and the latch engaged with the hook when said lever is not manually operated.

Les caractéristiques et avantages de la présente invention ressortiront de la description qui va suivre, faite en regard des dessins annexés et donnant, à titre d'exemple explicatif, mais nullement limitatif une forme avantageuse de la réalisation d'un fermoir, dessins dans lesquels :

  • la figure 1 est une vue en perspective éclatée du fermoir selon l'invention,
  • la figure 2 est une vue de côté du fermoir selon l'invention représenté fermé, le levier d'ouverture levé,
  • la figure 3 est une coupe verticale passant par les axes de rotation du levier et du verrou montrés en figure 1, levier levé,
  • la figure 4 est une coupe verticale passant par une lame extérieure des moyens élastiques et par une vis fixant lesdits moyens à la chape, levier levé,
  • la figure 5 est une coupe verticale passant par la lame centrale des moyens élastiques, et par le verrou et le crochet décrochés, levier levé,
  • la figure 6 est une vue en coupe verticale montrant la position des éléments composant le fermoir verrou et crochet décrochés, juste avant le blocage du fermoir, levier rabattu.
  • la figure 7 est une coupe verticale passant par la lame centrale des moyens élastiques, et par le verrou et le crochet en prise, levier rabattu, et
  • la figure 8 est une coupe verticale passant par une lame extérieure des moyens élastiques et par une vis fixant lesdits moyens à la chape, levier rabattu,
The features and advantages of the present invention will emerge from the description which follows, made with reference to the accompanying drawings and giving, by way of an explanatory example, but in no way limiting an advantageous form of the production of a clasp, drawings in which:
  • the figure 1 is an exploded perspective view of the clasp according to the invention,
  • the figure 2 is a side view of the clasp according to the invention shown closed, the lift lever raised,
  • the figure 3 is a vertical section through the axes of rotation of the lever and latch shown in figure 1 , lever up,
  • the figure 4 is a vertical section passing through an outer blade of the elastic means and by a screw fixing said means to the yoke, raised lever,
  • the figure 5 is a vertical section passing through the central blade of the elastic means, and by the latch and the hook unhooked, lever raised,
  • the figure 6 is a vertical sectional view showing the position of the components of the clasp latch and hook unhooked, just before locking the clasp lever folded.
  • the figure 7 is a vertical section passing through the central blade of the elastic means, and by the latch and the hook engaged, lever folded, and
  • the figure 8 is a vertical section passing through an outer blade of the elastic means and by a screw fixing said means to the yoke, lever folded,

La figure 1 est une vue éclatée du fermoir de l'invention et des diverses pièces le composant. De façon connue, le fermoir comporte un premier bras 8 dont une extrémité 15 est attachée à un brin 14 du bracelet, le bracelet étant représenté ici par un premier maillon. L'autre extrémité 16 du premier bras 8 est articulé au moyen d'un arbre 9 sur une première extrémité 19 d'un second bras dépliant 7. Dans ce cas particulier, le second bras 7 est formé de deux longerons 35 et 36 entre lesquels vient s'insérer le premier bras 8 quand le fermoir est en position de fermeture. Ce second bras 7 est traversé à sa seconde extrémité 17 et 18 par un arbre 11 autour duquel est articulée une chape 1 munie de premier et second rabats 20 et 21. A cette chape 1 est attaché un autre brin du bracelet non représenté sur la figure et émergeant de ladite chape 1 à gauche de la figure. De façon classique, l'arbre 11 est muni d'une encoche 37 et est maintenu en place, entre les trous 38 et 39 percés respectivement dans les rabats 20 et 21 de la chape 1, par un canon 10 muni d'un étranglement 40. La figure 1 montre encore que le fermoir de l'invention comporte un système de fermeture à levier 2 permettant le verrouillage des premier et second bras 8 et 7.The figure 1 is an exploded view of the clasp of the invention and the various parts composing it. In known manner, the clasp comprises a first arm 8, one end 15 is attached to a strand 14 of the bracelet, the bracelet being represented here by a first link. The other end 16 of the first arm 8 is articulated by means of a shaft 9 on a first end 19 of a second folding arm 7. In this particular case, the second arm 7 is formed of two longitudinal members 35 and 36 between which the first arm 8 is inserted when the clasp is in the closed position. This second arm 7 is traversed at its second end 17 and 18 by a shaft 11 around which is articulated a yoke 1 provided with first and second flaps 20 and 21. To this yoke 1 is attached another strand of the bracelet not shown in FIG. and emerging from said yoke 1 to the left of the figure. Conventionally, the shaft 11 is provided with a notch 37 and is held in place between the holes 38 and 39 respectively drilled in the flaps 20 and 21 of the yoke 1, by a barrel 10 provided with a throat 40 . The figure 1 shows again that the clasp of the invention comprises a lever closure system 2 for locking the first and second arms 8 and 7.

Ce système de fermeture est nouveau et constitue l'essentiel de la présente invention qui va être décrit maintenant. La figure 1 montre en effet qu'un levier 2 est monté pivotant sur la chape 1 au moyen d'une première articulation constituée de deux petites goupilles 3a pénétrant dans des trous 41 pratiqués dans les rabats 20 et 21 de la chape 1. La figure 1 et plus particulièrement les figures 3 à 8 montrent que le levier 2 commande un verrou 4 lui-même monté pivotant sur la chape 1 au moyen d'une second articulation, distincte de la première, et constituée de deux petites goupilles 3b. Ces petites goupilles 3b pénètrent dans des trous pratiqués dans les rabats 20 et 21 de la chape 1, ces trous n'étant pas visibles sur la figure 1. La commande du verrou 4 par le levier 2 se fait par une excroissance 28 pratiquée au dos du levier 2. Le verrou 4 est arrangé pour coopérer avec un crochet 22 dont est équipé le premier bras 8 et bloquer le fermoir quand ce dernier est poussé en position de fermeture. Enfin les figures montrent que le fermoir est équipé de moyens élastiques 5 arrangés pour maintenir le levier 2 non levé et le verrou 4 en prise avec le crochet 22 quand ce levier n'est pas actionné manuellement.This closure system is new and constitutes the essence of the present invention which will be described now. The figure 1 shows indeed that a lever 2 is pivotally mounted on the yoke 1 by means of a first joint consisting of two small pins 3a penetrating holes 41 formed in the flaps 20 and 21 of the yoke 1. The figure 1 and more particularly the Figures 3 to 8 show that the lever 2 controls a latch 4 itself pivotally mounted on the yoke 1 by means of a second hinge, distinct from the first, and consisting of two small pins 3b. These small pins 3b penetrate holes in the flaps 20 and 21 of the yoke 1, these holes are not visible on the figure 1 . The control of the lock 4 by the lever 2 is by an outgrowth 28 formed on the back of the lever 2. The latch 4 is arranged to cooperate with a hook 22 which is equipped with the first arm 8 and to lock the clasp when the latter is pushed in. closing position. Finally, the figures show that the clasp is equipped with elastic means 5 arranged to hold the lever 2 not raised and the latch 4 engaged with the hook 22 when the lever is not manually operated.

En particulier ces moyens élastiques 5 se présentent sous la forme d'une plaque fixée à la chape 1 au moyen de vis 26 et 27 comme on le voit en figure 1. Cette plaque 5 est découpée en forme de râteau et présente une lame centrale 23 appuyant sur un bossage 50 formé au dos du levier 2, ce qui est bien mis en évidence sur les figures 5, 6 et 7. Cette même plaque 5 présente aussi deux lames extérieures 24 et 25 appuyant sur des excroissances 30 formées à l'arrière du verrou 4, ce qui est bien mis en évidence sur les figures 4 et 8. Les mêmes figures 4 et 8 montrent l'une des vis 27 fixant la plaque 5 à la chape 1.In particular these elastic means 5 are in the form of a plate attached to the yoke 1 by means of screws 26 and 27 as seen in FIG. figure 1 . This plate 5 is cut in the shape of a rake and has a central blade 23 pressing a boss 50 formed on the back of the lever 2, which is well highlighted on the Figures 5, 6 and 7 . This same plate 5 also has two outer blades 24 and 25 pressing on protrusions 30 formed at the rear of the latch 4, which is well highlighted on the Figures 4 and 8 . The same Figures 4 and 8 show one of the screws 27 fixing the plate 5 to the yoke 1.

Toutes les figures montrent que le levier 2 est une plaque munie d'un onglet préhensible 31 qui sert à soulever le levier quand le fermoir doit être ouvert. Cette plaque, quand elle n'est pas actionnée se confond avec le dessus de la chape 1.All figures show that the lever 2 is a plate provided with a gripping tab 31 which serves to lift the lever when the clasp must be open. This plate, when it is not activated, merges with the top of the screed 1.

On a déjà signalé ci-dessus que les première et seconde articulations autour desquelles pivotent respectivement le levier 2 et le verrou 4 sont montées sur la chape 1. Pour cela on se servira des premier et second rabats 20 et 21 faisant partie de la chape 1 pour y longer ces articulations. Les petites goupilles 3a et 3b constituant ces articulations sont montées depuis l'extérieur des rabats dans des trous formés à cet usage puis soudées au laser. Dans une variante préférée, les parties extérieures des trous sont retouchées pour rendre ces articulations invisibles. De ce fait il ne restera que l'orifice 38 montré en figure 2, grâce auquel l'arbre 11 peut être extrait et le fermoir démonté.It has already been pointed out above that the first and second articulations around which the lever 2 and the latch 4 pivot respectively are mounted on the yoke 1. For this purpose, the first and second flaps 20 and 21 forming part of the yoke 1 will be used. to go along these joints. The small pins 3a and 3b constituting these joints are mounted from outside the flaps in holes formed for this purpose and then laser welded. In a preferred embodiment, the outer portions of the holes are retouched to make these joints invisible. As a result, only the hole 38 shown in figure 2 , thanks to which the shaft 11 can be extracted and the clasp disassembled.

Le fonctionnement du fermoir va être expliqué maintenant à l'aide des figures 3 à 8 qui sont des coupes verticales opérées dans le dessin en perspective de la figure 1.The operation of the clasp will be explained now using the Figures 3 to 8 which are vertical cuts made in the perspective drawing of the figure 1 .

Les figures 3 à 5 explicitent l'opération d'ouverture du fermoir.The Figures 3 to 5 explain the operation of opening the clasp.

La figure 3 est une coupe verticale montrant que l'axe de rotation du levier 2 et l'axe de rotation du verrou 4 sont distincts l'un de l'autre, ces axes de rotation comprenant respectivement les arbres 3a et 3b montés dans les rabats 20 et 21 de la chape 1. Comme on le verra plus loin, la mise en oeuvre de ces deux axes, qui n'existent pas dans le fermoir EP 1 654 950 cité plus haut, constitue l'idée principale de la présente invention pour éviter le soulèvement du levier quand on ferme le fermoir.The figure 3 is a vertical section showing that the axis of rotation of the lever 2 and the axis of rotation of the latch 4 are distinct from each other, these axes of rotation respectively comprising the shafts 3a and 3b mounted in the flaps 20 and 21 of the screed 1. As will be seen later, the implementation of these two axes, which do not exist in the clasp EP 1 654 950 cited above, is the main idea of the present invention to prevent lifting of the lever when closing the clasp.

La figure 4 est une coupe verticale passant par une des lames extérieures 24 et 25 composant les moyens élastiques 5 fixés à la chape 1 par deux vis 27 et 26. La présente coupe passe par la lame 24 et la vis 27. En s'aidant de l'onglet 31, on soulève le levier 2 dans le sens de la flèche A. L'excroissance 28 dont est muni le levier 2 fait tourner le verrou 4 en armant la lame 24.The figure 4 is a vertical section passing through one of the outer blades 24 and 25 composing the elastic means 5 fixed to the yoke 1 by two screws 27 and 26. The present section passes through the blade 24 and the screw 27. With the aid of the tab 31, the lever 2 is raised in the direction of the arrow A. The protrusion 28 which is provided with the lever 2 rotates the latch 4 by arming the blade 24.

La figure 5 est une coupe verticale passant par la lame centrale 23 des moyens élastiques 5. Cette coupe montre que la lame centrale 23 est armée par un bossage 50 du levier 2, ce dernier étant toujours maintenu soulevé. On s'aperçoit que le verrou 4 s'est échappé du crochet 22 que porte le premier bras 8. Le second bras 7 du fermoir dont on voit ici l'extrémité 18 n'est plus retenu plaqué au premier bras 8 et le fermoir peut s'ouvrir.The figure 5 is a vertical section passing through the central blade 23 of the elastic means 5. This section shows that the central blade 23 is armed by a boss 50 of the lever 2, the latter being always maintained raised. It can be seen that the latch 4 has escaped from the hook 22 that the first arm 8 carries. The second arm 7 of the clasp, whose end 18 is seen here, is no longer retained pressed to the first arm 8 and the clasp can is open.

Les figures 6 à 8 explicitent l'opération de fermeture du fermoir.The Figures 6 to 8 explain the closing operation of the clasp.

La figure 6 est une vue en coupe verticale montrant la position des éléments composant le fermoir juste avant le blocage du fermoir. La coupe passe par la lame centrale 23 des moyens élastiques 5. Le levier 2 n'est plus soulevé manuellement et a tourné autour de l'arbre 3a dans le sens de la flèche B rappelé qu'il est par la lame 23. La figure 6 montre que la surface du levier 2 présente une solution de continuité avec la surface de la chape 1 et qu'il se confond avec elle. La figure 6 montre encore que juste avant le blocage du fermoir la tête du verrou 4 est en contact avec le sommet du crochet 22 du premier bras 8.The figure 6 is a vertical sectional view showing the position of the components of the clasp just before locking the clasp. The cut passes through the central blade 23 of the elastic means 5. The lever 2 is no longer lifted manually and turned around the shaft 3a in the direction of the arrow B recalled that it is by the blade 23. The figure 6 shows that the surface of the lever 2 has a solution of continuity with the surface of the yoke 1 and that it merges with it. The figure 6 shows again that just before locking the clasp the bolt head 4 is in contact with the top of the hook 22 of the first arm 8.

La figure 7 est une coupe verticale passant par la lame centrale 23 des moyens élastiques 5. Elle montre la position des éléments composant le fermoir en situation bloquée. Une pression manuelle exercée sur la chape 1 a conduit la tête du verrou 4 à venir se placer sous le crochet 22 du premier bras 8 conduisant au blocage du fermoir. Dans cette situation le premier bras 8 repose entre les longerons 35 et 36 du second bras 7 et l'arbre 11 traversant les secondes extrémités 17 et 18 dudit second bras 7 se trouve au fond d'une gorge 51 pratiquée vers l'extrémité du premier bras 8.The figure 7 is a vertical section through the central blade 23 of the elastic means 5. It shows the position of the components of the clasp in a locked situation. Manual pressure exerted on the yoke 1 led the head of the latch 4 to be placed under the hook 22 of the first arm 8 leading to the locking of the clasp. In this situation the first arm 8 rests between the longitudinal members 35 and 36 of the second arm 7 and the shaft 11 passing through the second ends 17 and 18 of said second arm 7 is at the bottom of a groove 51 made towards the end of the first arm 8.

Enfin la figure 8 est une coupe verticale passant par la lame extérieure 24 des moyens élastiques 5 et la vis de fixation 27, le fermoir étant en situation bloquée et le levier 2 rabattu sur la chape 1. Cette figure montre bien l'appui de la lame 24 contre l'excroissance 30 du verrou 4 ce qui maintient bien en prise la tête du verrou 4 avec le crochet 22 du premier bras 8.Finally, figure 8 is a vertical section through the outer blade 24 of the elastic means 5 and the fixing screw 27, the clasp being locked and the lever 2 folded on the yoke 1. This figure shows the support of the blade 24 against the protrusion 30 of the latch 4 which keeps the head of the latch 4 in engagement with the hook 22 of the first arm 8.

Ainsi des explications qui viennent d'être données, on a bien compris que la fermeture du fermoir s'est faite sans basculement du levier 2 qui est resté en place durant toute l'opération, ce levier 2 étant maintenu plaqué contre la chape 1. On fera remarquer également que la construction qui vient d'être décrite rend la force nécessaire à soulever le levier 2 indépendante de la force exercée sur les brins du bracelet, cette force d'ouverture pouvant être adaptée à différents types de bracelets (homme, dames) en changeant les seuls moyens élastiques 5.Thus explanations that have just been given, it is understood that the closure of the clasp was made without tilting of the lever 2 which remained in place during the entire operation, the lever 2 being held pressed against the yoke 1. It will also be noted that the construction which has just been described makes the force necessary to lift the lever 2 independent of the force exerted on the strands of the bracelet, this opening force being adaptable to different types of bracelets (men, ladies). ) by changing the only elastic means 5.

Claims (4)

  1. Bracelet clasp including at least two arms articulated to each other, a first arm (8), one end (15) of which is attached to a strand (14) of the bracelet, the other end (16) being articulated (9) on a first end (19) of a second unfolding arm (7) traversed at the second end (17, 18) thereof by an arbour (11) about which there is articulated a cap (1) provided with first (20) and second (21) flaps and to which another strand of the bracelet is attached, and a fastening system with a lever (2) for locking said first (8) and second (7) arms, the lever (2) being pivotably mounted on the cap (1) by means of a first hinge (3a), characterized in that said lever controls a bolt (4) which is in turn pivotably mounted on said cap (1) by means of a second hinge (3b), distinct from the first, said bolt (4) being arranged to cooperate with a hook (22) fitted to the first arm (8) and to lock the clasp when the latter is pushed into the fastening position, elastic means (5) being arranged to hold the lever (2) in the non-raised position and the bolt (4) engaged with the hook (22) when said lever (2) is not manually activated.
  2. Clasp according to claim 1, characterized in that the elastic means (5) takes the form of a plate fixed to the cap (1) by means of screws (26, 27), said plate (5) being cut in the form of a rake having a central strip (23) abutting on a boss (50) formed on the back of the lever (2), and two external strips (24, 25) abutting on raised portions (30) formed on the back of the bolt (4).
  3. Clasp according to claim 1, characterized in that the lever (2) is a plate provided with a grippable portion (31), and wherein, when not activated, said plate merges with the top of the cap (1).
  4. Clasp according to claim 1, characterized in that the first (3a) and second (3b) hinges about which the lever (2) and the bolt (4) respectively pivot, are mounted in the flaps (20, 21) of the cap (1).
EP11159074.1A 2011-03-21 2011-03-21 Bracelet clasp Active EP2502516B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP11159074.1A EP2502516B1 (en) 2011-03-21 2011-03-21 Bracelet clasp
US13/415,045 US8561263B2 (en) 2011-03-21 2012-03-08 Bracelet clasp
JP2012054133A JP5912690B2 (en) 2011-03-21 2012-03-12 Bracelet clasp
CN201210073766.3A CN102687937B (en) 2011-03-21 2012-03-20 Bracelet clasp
HK13103545.9A HK1176527A1 (en) 2011-03-21 2013-03-21 Bracelet clasp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11159074.1A EP2502516B1 (en) 2011-03-21 2011-03-21 Bracelet clasp

Publications (2)

Publication Number Publication Date
EP2502516A1 EP2502516A1 (en) 2012-09-26
EP2502516B1 true EP2502516B1 (en) 2013-07-17

Family

ID=44462097

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11159074.1A Active EP2502516B1 (en) 2011-03-21 2011-03-21 Bracelet clasp

Country Status (5)

Country Link
US (1) US8561263B2 (en)
EP (1) EP2502516B1 (en)
JP (1) JP5912690B2 (en)
CN (1) CN102687937B (en)
HK (1) HK1176527A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9210971B2 (en) 2012-09-04 2015-12-15 Omega S.A. Clasp for a watch bracelet or a garment belt

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2502515B1 (en) * 2011-03-21 2013-09-04 The Swatch Group Management Services AG Bracelet clasp
USD735190S1 (en) * 2013-08-30 2015-07-28 Samsung Electronics Co., Ltd. Electronic device
EP3069629B1 (en) 2015-03-18 2019-07-03 The Swatch Group Research and Development Ltd. Bracelet clasp
EP3412168B1 (en) * 2017-06-07 2020-03-25 Omega SA Clasp for bracelet
CN110558689B (en) * 2019-07-23 2021-03-30 华为技术有限公司 Connection structure and dress product
EP3928652B1 (en) * 2020-06-23 2023-04-19 Rolex Sa Locking device for a bracelet clasp

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57104912U (en) * 1980-12-17 1982-06-28
JPS6127456Y2 (en) * 1981-03-06 1986-08-15
JP3847861B2 (en) * 1996-10-24 2006-11-22 株式会社グローリー Diver band buckle
EP0865742B1 (en) * 1997-03-22 2003-06-11 Rolex Sa Foldable fastener for a bracelet
DE60025217T2 (en) * 2000-10-26 2006-07-13 Rolex Sa strap closure
JP2003199605A (en) * 2002-01-07 2003-07-15 Seiko Epson Corp Watchband and watch with watchband using the same
DE602004011525T2 (en) * 2004-11-03 2008-07-31 Rolex Sa strap closure
DE602006007360D1 (en) * 2006-10-06 2009-07-30 Rolex Sa strap closure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9210971B2 (en) 2012-09-04 2015-12-15 Omega S.A. Clasp for a watch bracelet or a garment belt

Also Published As

Publication number Publication date
JP5912690B2 (en) 2016-04-27
HK1176527A1 (en) 2013-08-02
CN102687937B (en) 2014-12-17
US20120240360A1 (en) 2012-09-27
JP2012196441A (en) 2012-10-18
US8561263B2 (en) 2013-10-22
CN102687937A (en) 2012-09-26
EP2502516A1 (en) 2012-09-26

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