EP2502515B1 - Bracelet clasp - Google Patents

Bracelet clasp Download PDF

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Publication number
EP2502515B1
EP2502515B1 EP20110159072 EP11159072A EP2502515B1 EP 2502515 B1 EP2502515 B1 EP 2502515B1 EP 20110159072 EP20110159072 EP 20110159072 EP 11159072 A EP11159072 A EP 11159072A EP 2502515 B1 EP2502515 B1 EP 2502515B1
Authority
EP
European Patent Office
Prior art keywords
clasp
cover
arm
bars
hinged
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
EP20110159072
Other languages
German (de)
French (fr)
Other versions
EP2502515A1 (en
Inventor
Cédric Kaltenrieder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Swatch Group Management Services AG
Original Assignee
Swatch Group Management Services AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Swatch Group Management Services AG filed Critical Swatch Group Management Services AG
Priority to EP20110159072 priority Critical patent/EP2502515B1/en
Priority to US13/414,190 priority patent/US8918965B2/en
Priority to JP2012054132A priority patent/JP6147960B2/en
Priority to CN201210073754.0A priority patent/CN102687936B/en
Publication of EP2502515A1 publication Critical patent/EP2502515A1/en
Priority to HK13103546.8A priority patent/HK1176528A1/en
Application granted granted Critical
Publication of EP2502515B1 publication Critical patent/EP2502515B1/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.
    • Y10T24/21—Strap tighteners
    • Y10T24/2166—Jewelry
    • 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

Definitions

  • the present invention relates to a bracelet clasp comprising at least two arms articulated to each other, a first rigid arm equipped with two longitudinal members, one end of this first arm being attached to one strand of the bracelet, the other end being articulated on a first end of a second leaf arm from which emerge first and second beams whose free ends are traversed by a shaft around which is articulated a yoke provided with first and second flaps to which is attached another strand of bracelet, first and second pushers integral with said first and second beams and preceding the place where said beams are traversed by said shaft, and a locking mechanism arranged to hold the second arm hooked on the first when no pressure is exercised simultaneously on the pushers.
  • a clasp broadly corresponding to the description that has just been given is shown on the document U.S. 1,832,734 (Prestinari ). There is also a clevis and two pushers whose axis of excursion is not confused with the hinge axis of the yoke. However the description given is not explicit enough to account for the security presented by this clasp to know whether it is imperative to simultaneously press the two pushers to open said clasp or if a pressure on a single pushbutton accompanied by a simultaneous pressure on one side of the opposite yoke to this pusher does not ultimately result in the same result, which is absolutely prohibited in the eyes of the applicant of the present invention.
  • the present invention in addition to fulfilling the generic definition expressed in the first paragraph of this description, is remarkable in that the clasp comprises a safety device preventing lateral displacement of the yoke leading to unlocking the clasp when simultaneous pressures are exerted on both a pusher and a flap of the yoke opposite said pusher.
  • the Figures 1 and 2 are perspective views of the bracelet clasp which comprises a first rigid arm 1 equipped with two longitudinal members 4a and 4b.
  • the end 5 of this arm is arranged to receive a strand of the bracelet and is in the form of a bridge connecting the two longitudinal members.
  • the other end 20 of the longitudinal members 4a and 4b is traversed by a shaft 22 around which is articulated a first end 21 of a second folding arm 2.
  • bridges 23 which on the one hand ensure good rigidity to the first arm 1 and secondly that serve as a stop to the second arm when it is folded in the first arm.
  • first and second beams 11a and 11b which have free ends 10a and 10b traversed by a shaft 61.
  • a yoke 3 provided with first and second flaps 50 and 51 equipped with holes 80 for receiving a bar, starting point of another strand of the bracelet.
  • the Figures 1 and 2 still show first and second pushers 15a and 15b which are integral with the first and second beams 11a and 11b. It will be noted that these pushers are not placed in alignment with the shaft 61 passing through the free ends of the beams, but preceding this alignment.
  • a locking mechanism is arranged to hold the second arm 2 hooked on the first arm 1 when no pressure is exerted simultaneously on the pushers 15a and 15b.
  • the longitudinal members 4a and 4b of the first arm 1 carry respectively fixed hooks 54 and 55 arranged to receive respectively hooks 56 and 57 which are equipped with the movable ends of the beams 11a and 11b, this attachment being particularly well represented in the cup of the figure 5 .
  • the clasp of the present invention is distinguished by a remarkable and original arrangement in that it comprises a safety device preventing lateral displacement of the yoke 3 leading to an untimely unlocking of the clasp when simultaneous pressures are exerted on both a pusher and a flap of the yoke 3 opposite said pusher.
  • FIGS. 1 to 8 illustrate a first embodiment of this security device.
  • the shaft passing through the free ends 10a and 10b of the first and second beams 11a and 11b and around which is articulated the yoke 3 is a pin 61 provided with first and second notches 62 and 63. These notches are arranged for respectively retaining first and second tubes 64 and 65 each provided with a throat 66 and 67. These retaining tubes are disposed between the free ends 10a and 10b of the beams 11a and 11b and the first and second flaps 50 and 51 of the screed 3.
  • the safety device itself is in the form of first and second ears 52 and 53 raised in the yoke 3, these ears forming abutments and supported on either side of the first rigid arm 1 when the clasp is in position closure.
  • the figure 4 is a section along line IV-IV of the figure 3 .
  • the clevis 3 are raised two ears 52 and 53, also visible in the figures in perspective 1 and 2.
  • the ear 52 comes to bear on the side 58 of the first arm 1 and the same is true for the ear 53 which bears on the side 59 of the arm 1, these sides 58 and 59 being clearly visible on the Figures 1 and 2 .
  • the figure 5 is a section along line VV of the figure 3 .
  • the pushers 15a and 15b are not actuated and we see the locking of the clasp, the hooks 54 and 55 of the longitudinal members 4a and 4b respectively overlying the hooks 56 and 57 of the beams 11a and 11b.
  • the figure 6 is a section along the line VI-VI of the figure 3 .
  • the push buttons are actuated in the direction of the arrows AA.
  • the clasp is unlocked, the beams 11a and 11b having moved closer to one another releasing their respective hooks 56 and 57 from the hooks 54 and 55 of the longitudinal members 4a and 4b of the rigid arm 1.
  • figure 7 which is a view from below according to arrow VII of the figure 3 .
  • the ends 10a and 10b of the beams 11a and 11b come into abutment, which avoids any plastic deformation of the beams.
  • the figure 8 is a section along the line VIII-VIII of the figure 3 .
  • the right pusher 15a is actuated in the direction of the arrow A.
  • the hook 56 of the beam 11a is disengaged from the hook 54 of the spar 4a.
  • this pressure is exerted on the left of the yoke 3 in the direction of the arrow B.
  • This pressure does not cause the unlocking of the left part of the clasp by the security device installed.
  • This device is here the left ear 53 (see also figure 7 ) which stops in the closed position of the clasp against the rigid portion 59 of the first arm 1 located on the side of the spar 4b.
  • FIGS 9 and 10 are perspective views of the bracelet clasp which comprises a first rigid arm 1 equipped with two longitudinal members 4a and 4b.
  • the end 5 of this arm is arranged to receive a strand of the bracelet and is in the form of a bridge connecting the two longitudinal members.
  • the other end 20 of the longitudinal members 4a and 4b is traversed by a shaft 22 around which is articulated a first end 21 of a second folding arm 2.
  • bridges 23 which on the one hand ensure good rigidity to the first arm 1 and secondly that serve as a stop to the second arm when it is folded in the first arm.
  • first and second beams 11a and 11b which have free ends 10a and 10b traversed by a shaft 71.
  • a yoke 3 provided with first and second flaps 50 and 51 equipped with holes 80 provided for receiving a bar, starting point of another strand of the bracelet.
  • the Figures 9 and 10 still show first and second pushers 15a and 15b which are integral with the first and second beams 11a and 11b. Note that these pushers are not placed in alignment with the shaft 71 passing through the free ends of the beams, but preceding this alignment.
  • a locking mechanism is arranged to hold the second arm 2 hooked on the first arm 1 when no pressure is exerted simultaneously on the pushers 15a and 15b.
  • the longitudinal members 4a and 4b of the first arm 1 carry respectively fixed hooks 54 and 55 arranged to receive respectively hooks 56 and 57 which are equipped with the movable ends of the beams 11a and 11b, this attachment being particularly well represented in the cup of the figure 12 .
  • the clasp of the present invention is distinguished by a remarkable and original arrangement in that it comprises a safety device preventing lateral displacement of the yoke 3 leading to an untimely unlocking of the clasp when simultaneous pressures are exerted on both a pusher and a flap of the yoke 3 opposite said pusher.
  • FIGS. 9 to 15 illustrate a second embodiment of this security device. These figures show that the shaft passing through the free ends 10a and 10b of the first and second beams 11a and 11b and around which is articulated the yoke 3 is a pin 71 driven into a spacer 70 resting on both sides on the inner walls 74 and 75 that have the first and second flaps 50 and 51 of the yoke 3.
  • the safety device itself is in the form of first and second protrusions 72 and 73 emerging from the spacer 70, these protrusions forming abutments and supported on either side of the first rigid arm 1 when the clasp is in position. closing position.
  • the figure 12 is a section along the line XII-XII of the figure 11 .
  • the pushers 15a and 15b are not actuated.
  • the clasp is locked, the hooks 54 and 55 of the longitudinal members 4a and 4b respectively overlying the hooks 56 and 57 of the beams 11a and 11b.
  • the figure 13 is a section along line XIII-XIII of the figure 11 .
  • the pushers 15a and 15b are actuated in the direction of the arrows AA.
  • the clasp is unlocked, the beams 11a and 11b having moved closer to one another, releasing their respective hooks 56 and 57 from the hooks 54 and 55 of the longitudinal members 4a and 4b of the rigid arm 1.
  • FIG. figure 14 which is a view from below according to arrow XIV of the figure 11 .
  • the ends 10a and 10b of the beams 11a and 11b come into abutment, which avoids any plastic deformation of the beams.
  • the figure 15 is a section along line XV-XV of the figure 11 .
  • the right pusher 15a is actuated in the direction of the arrow A.
  • the hook 56 of the beam 11a is disengaged from the hook 54 of the spar 4a.
  • pressure is exerted on the left of the yoke 3 in the direction of the arrow B. This pressure does not cause the unlocking of the left part of the clasp by the security device installed.
  • This device is here the left excrescence 73 (see also figure 14 ) which stops in the closed position of the clasp against the rigid portion 59 of the first arm 1 located on the side of the spar 4b.
  • the invention which has just been described in detail allows the implementation of a very light screed 3 made by cutting and bending a metal.
  • the first and second arms 1 and 2 can be made by metal injection molding (MIM).

Landscapes

  • Buckles (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (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 rigide équipé de deux longerons, une extrémité de ce premier bras étant attachée à un brin du bracelet, l'autre extrémité étant articulée sur une première extrémité d'un second bras dépliant d'où émergent des première et seconde poutres dont les extrémités libres sont traversées par un arbre autour duquel est articulée une chape munie de premier et second rabats auxquels est attaché un autre brin du bracelet, des premier et second poussoirs faisant corps avec lesdites première et seconde poutres et précédant l'endroit où lesdites poutres sont traversées par ledit arbre, et un mécanisme de verrouillage arrangé pour maintenir accroché le second bras sur le premier quand aucune pression n'est exercée simultanément sur les poussoirs.The present invention relates to a bracelet clasp comprising at least two arms articulated to each other, a first rigid arm equipped with two longitudinal members, one end of this first arm being attached to one strand of the bracelet, the other end being articulated on a first end of a second leaf arm from which emerge first and second beams whose free ends are traversed by a shaft around which is articulated a yoke provided with first and second flaps to which is attached another strand of bracelet, first and second pushers integral with said first and second beams and preceding the place where said beams are traversed by said shaft, and a locking mechanism arranged to hold the second arm hooked on the first when no pressure is exercised simultaneously on the pushers.

Un fermoir répondant dans les grandes lignes à la description qui vient d'être donnée est montré sur le document US 1'832'734 (Prestinari ). Là également on trouve une chape et deux poussoirs dont l'axe d'excursion n'est pas confondu avec l'axe d'articulation de la chape. Cependant la description donnée n'est pas assez explicite pour rendre compte de la sécurité présenté par ce fermoir à savoir s'il est impérativement nécessaire de presser simultanément sur les deux poussoirs pour ouvrir ledit fermoir ou si une pression sur un seul poussoir accompagnée d'une pression simultanée sur un côté de la chape opposé à ce poussoir n'aboutit pas finalement au même résultat, ce qui est absolument prohibé aux yeux du déposant de la présente invention.A clasp broadly corresponding to the description that has just been given is shown on the document U.S. 1,832,734 (Prestinari ). There is also a clevis and two pushers whose axis of excursion is not confused with the hinge axis of the yoke. However the description given is not explicit enough to account for the security presented by this clasp to know whether it is imperative to simultaneously press the two pushers to open said clasp or if a pressure on a single pushbutton accompanied by a simultaneous pressure on one side of the opposite yoke to this pusher does not ultimately result in the same result, which is absolutely prohibited in the eyes of the applicant of the present invention.

Ainsi la présente invention, outre qu'elle obéit à la définition générique exprimée au premier paragraphe de cette description, est remarquable en ce que le fermoir comporte un dispositif de sécurité empêchant le déplacement latéral de la chape conduisant à un déverrouillage du fermoir quand des pressions simultanées sont exercées à la fois sur un poussoir et sur un rabat de la chape opposé audit poussoir.Thus, the present invention, in addition to fulfilling the generic definition expressed in the first paragraph of this description, is remarkable in that the clasp comprises a safety device preventing lateral displacement of the yoke leading to unlocking the clasp when simultaneous pressures are exerted on both a pusher and a flap of the yoke opposite said pusher.

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

  • la figure 1 est une vue en perspective selon un premier mode de réalisation du fermoir de l'invention montré en position déployée,
  • la figure 2 est une vue en perspective éclatée du fermoir de la figure 1 montrant les divers éléments dont il est composé,
  • la figure 3 est une vue de côté du fermoir selon la figure 1 en position fermée,
  • la figure 4 est une coupe selon la ligne IV-IV de la figure 3,
  • la figure 5 est une coupe selon la ligne V-V de la figure 3, le fermoir étant verrouillé, les poussoirs n'étant pas actionnés,
  • la figure 6 est une coupe selon la ligne VI-VI de la figure 3, le fermoir étant déverrouillé, les poussoirs étant actionnés dans le sens des flèches A-A,
  • la figure 7 est une vue de dessous selon la flèche VII de la figure 3, les poussoirs étant actionnés dans le sens des flèches A-A montrées en figure 6,
  • la figure 8 est une coupe selon la ligne VIII-VIII de la figure 3, le poussoir de droite étant actionné dans le sens de la flèche A et la chape subissant une pression dans le sens de la flèche B,
  • la figure 9 est une vue en perspective selon un second mode de réalisation du fermoir de l'invention montré en position déployée,
  • la figure 10 est une vue en perspective éclatée du fermoir de la figure 9 montrant les divers éléments dont il est composé,
  • la figure 11 est une vue de côté du fermoir selon la figure 9 en position fermée,
  • la figure 12 est une coupe selon la ligne XII-XII de la figure 11, le fermoir étant verrouillé, les poussoirs n'étant pas actionnés,
  • la figure 13 est une coupe selon la ligne XIII-XIII de la figure 11, le fermoir étant déverrouillé, les poussoirs étant actionnés dans le sens des flèches A-A,
  • la figure 14 est une vue de dessous selon la flèche XIV de la figure 11, les poussoirs étant actionnés dans le sens des flèches A-A montrées en figure 13, et
  • la figure 15 est une coupe selon la ligne XV-XV de la ligne 11, le poussoir de droite étant actionné dans le sens de la flèche A et la chape subissant une pression dans le sens de la flèche B.
The features and advantages of the present invention will emerge from the description which follows, made with reference to the accompanying drawings and giving as an explanatory example, but in no way limiting, two advantageous forms of making a clasp, drawings in which:
  • the figure 1 is a perspective view according to a first embodiment of the clasp of the invention shown in the deployed position,
  • the figure 2 is an exploded perspective view of the clasp of the figure 1 showing the various elements of which it is composed,
  • the figure 3 is a side view of the clasp according to the figure 1 in closed position,
  • the figure 4 is a section along line IV-IV of the figure 3 ,
  • the figure 5 is a section along line VV of the figure 3 the clasp being locked, the pushers not being actuated,
  • the figure 6 is a section along the line VI-VI of the figure 3 , the clasp being unlocked, the pushers being actuated in the direction of the arrows AA,
  • the figure 7 is a view from below according to arrow VII of the figure 3 , the pushers being actuated in the direction of the arrows AA shown in figure 6 ,
  • the figure 8 is a section along the line VIII-VIII of the figure 3 , the right pusher being actuated in the direction of arrow A and the yoke being pressed in the direction of arrow B,
  • the figure 9 is a perspective view according to a second embodiment of the clasp of the invention shown in the deployed position,
  • the figure 10 is an exploded perspective view of the clasp of the figure 9 showing the various elements of which it is composed,
  • the figure 11 is a side view of the clasp according to the figure 9 in closed position,
  • the figure 12 is a section along the line XII-XII of the figure 11 the clasp being locked, the pushers not being actuated,
  • the figure 13 is a section along line XIII-XIII of the figure 11 , the clasp being unlocked, the pushers being actuated in the direction of the arrows AA,
  • the figure 14 is a view from below according to arrow XIV of the figure 11 , the pushers being actuated in the direction of the arrows AA shown in figure 13 , and
  • the figure 15 is a section along the line XV-XV of the line 11, the right pusher being actuated in the direction of the arrow A and the yoke under pressure in the direction of the arrow B.

Les dessins 1 à 8 sont relatifs à un premier mode d'exécution du fermoir réalisé selon l'invention, première exécution qui va être expliqué maintenant en détail.Drawings 1 to 8 relate to a first embodiment of the clasp made according to the invention, the first embodiment which will now be explained in detail.

Les figures 1 et 2 sont des vues en perspective du fermoir de bracelet qui comprend un premier bras rigide 1 équipé de deux longerons 4a et 4b. L'extrémité 5 de ce bras est arrangé pour recevoir un brin du bracelet et se présente sous la forme d'un pont reliant les deux longerons. L'autre extrémité 20 des longerons 4a et 4b est traversée par un arbre 22 autour duquel est articulé une première extrémité 21 d'un second bras dépliant 2. A proximité de cette articulation, on observe que les longerons sont réunis par des ponts 23 qui assurent d'une part une bonne rigidité au premier bras 1 et d'autre part qui servent de butée au second bras quand il est replié dans le premier bras. De la première extrémité 21 du second bras 2 émergent des première et seconde poutres 11a et 11 b qui présentent des extrémités libres 10a et 10b traversées par un arbre 61. Autour de cet arbre 61 est articulée une chape 3 munie de premier et second rabats 50 et 51 équipés de trous 80 prévus pour recevoir une barrette, point de départ d'un autre brin du bracelet. Les figures 1 et 2 montrent encore des premier et second poussoirs 15a et 15b qui font corps avec les première et second poutres 11 a et 11 b. On remarquera que ces poussoirs ne sont pas placés dans l'alignement de l'arbre 61 traversant les extrémités libres des poutres, mais précédent cet alignement. Un mécanisme de verrouillage est arrangé pour maintenir accroché le second bras 2 sur le premier bras 1 quand aucune pression n'est exercée simultanément sur les poussoirs 15a et 15b. A cet effet, les longerons 4a et 4b du premier bras 1 portent respectivement des crochets 54 et 55 fixes arrangés pour recevoir respectivement des crochets 56 et 57 dont sont équipées les extrémités mobiles des poutres 11 a et 11 b, cet accrochage étant particulièrement bien représenté dans la coupe de la figure 5.The Figures 1 and 2 are perspective views of the bracelet clasp which comprises a first rigid arm 1 equipped with two longitudinal members 4a and 4b. The end 5 of this arm is arranged to receive a strand of the bracelet and is in the form of a bridge connecting the two longitudinal members. The other end 20 of the longitudinal members 4a and 4b is traversed by a shaft 22 around which is articulated a first end 21 of a second folding arm 2. In the vicinity of this joint, it is observed that the longitudinal members are joined by bridges 23 which on the one hand ensure good rigidity to the first arm 1 and secondly that serve as a stop to the second arm when it is folded in the first arm. From the first end 21 of the second arm 2 emerge from the first and second beams 11a and 11b which have free ends 10a and 10b traversed by a shaft 61. Around this shaft 61 is articulated a yoke 3 provided with first and second flaps 50 and 51 equipped with holes 80 for receiving a bar, starting point of another strand of the bracelet. The Figures 1 and 2 still show first and second pushers 15a and 15b which are integral with the first and second beams 11a and 11b. It will be noted that these pushers are not placed in alignment with the shaft 61 passing through the free ends of the beams, but preceding this alignment. A locking mechanism is arranged to hold the second arm 2 hooked on the first arm 1 when no pressure is exerted simultaneously on the pushers 15a and 15b. For this purpose, the longitudinal members 4a and 4b of the first arm 1 carry respectively fixed hooks 54 and 55 arranged to receive respectively hooks 56 and 57 which are equipped with the movable ends of the beams 11a and 11b, this attachment being particularly well represented in the cup of the figure 5 .

Par rapport à ce qui vient d'être dit ci-dessus, en principe connu de documents antérieurs, le fermoir de la présente invention se distingue par une disposition remarquable et originale en ce sens qu'il comporte un dispositif de sécurité empêchant le déplacement latéral de la chape 3 conduisant à un déverrouillage intempestif du fermoir quand des pressions simultanées sont exercées à la fois sur un poussoir et sur un rabat de la chape 3 opposé audit poussoir.Compared to what has just been said above, in principle known from prior documents, the clasp of the present invention is distinguished by a remarkable and original arrangement in that it comprises a safety device preventing lateral displacement of the yoke 3 leading to an untimely unlocking of the clasp when simultaneous pressures are exerted on both a pusher and a flap of the yoke 3 opposite said pusher.

Les figures 1 à 8 illustrent un premier mode d'exécution de ce dispositif de sécurité. Ces figures montrent que l'arbre traversant les extrémités libres 10a et 10b des première et seconde poutres 11 a et 11 b et autour duquel est articulée la chape 3 est une goupille 61 munie de première et seconde encoches 62 et 63. Ces encoches sont arrangées pour retenir respectivement des premier et second tubes 64 et 65 munis chacun d'un étranglement 66 et 67. Ces tubes de retenue sont disposés entre les extrémités libres 10a et 10b des poutres 11 a et 11 b et les premier et second rabats 50 et 51 de la chape 3.The Figures 1 to 8 illustrate a first embodiment of this security device. These figures show that the shaft passing through the free ends 10a and 10b of the first and second beams 11a and 11b and around which is articulated the yoke 3 is a pin 61 provided with first and second notches 62 and 63. These notches are arranged for respectively retaining first and second tubes 64 and 65 each provided with a throat 66 and 67. These retaining tubes are disposed between the free ends 10a and 10b of the beams 11a and 11b and the first and second flaps 50 and 51 of the screed 3.

Le dispositif de sécurité proprement dit se présente sous la forme de première et seconde oreilles 52 et 53 levées dans la chape 3, ces oreilles formant butées et s'appuyant de part et d'autre du premier bras rigide 1 quand le fermoir est en position de fermeture.The safety device itself is in the form of first and second ears 52 and 53 raised in the yoke 3, these ears forming abutments and supported on either side of the first rigid arm 1 when the clasp is in position closure.

En s'aidant des coupes des figures 4, 5, 6 et 8 opérées sur la vue de côté de la figure 3, on va montrer maintenant comment fonctionne ce dispositif se sécurité.With the help of the cuts of figures 4 , 5, 6 and 8 operated on the side view of the figure 3 , we will now show how this device works.

La figure 4 est une coupe selon la ligne IV-IV de la figure 3. On voit que dans la chape 3 sont levées deux oreilles 52 et 53, visibles également sur les figures en perspective 1 et 2. Quand le fermoir est replié selon la figure 3, l'oreille 52 vient en appui sur le côté 58 du premier bras 1 et il en est de même pour l'oreille 53 qui vient s'appuyer sur le côté 59 du bras 1, ces côtés 58 et 59 étant bien apparents sur les figures 1 et 2.The figure 4 is a section along line IV-IV of the figure 3 . We see that in the clevis 3 are raised two ears 52 and 53, also visible in the figures in perspective 1 and 2. When the clasp is folded according to the figure 3 the ear 52 comes to bear on the side 58 of the first arm 1 and the same is true for the ear 53 which bears on the side 59 of the arm 1, these sides 58 and 59 being clearly visible on the Figures 1 and 2 .

La figure 5 est une coupe selon la ligne V-V de la figure 3. Les poussoirs 15a et 15b ne sont pas actionnés et l'on voit le verrouillage du fermoir, les crochets 54 et 55 des longerons 4a et 4b surmontant respectivement les crochets 56 et 57 des poutres 11a et 11b.The figure 5 is a section along line VV of the figure 3 . The pushers 15a and 15b are not actuated and we see the locking of the clasp, the hooks 54 and 55 of the longitudinal members 4a and 4b respectively overlying the hooks 56 and 57 of the beams 11a and 11b.

La figure 6 est une coupe selon la ligne VI-VI de la figure 3. Les poussoirs sont actionnés dans le sens des flèches A-A. Le fermoir est déverrouillé, les poutres 11 a et 11 b s'étant rapprochées l'une de l'autre libérant leur crochet respectif 56 et 57 des crochets 54 et 55 des longerons 4a et 4b du bras rigide 1. La même situation est montrée en figure 7 qui est une vue de dessous selon la flèche VII de la figure 3. Ici l'on voit que les extrémités 10a et 10b des poutres 11a et 11b arrivent en butée, ce qui évite toute déformation plastique des poutres.The figure 6 is a section along the line VI-VI of the figure 3 . The push buttons are actuated in the direction of the arrows AA. The clasp is unlocked, the beams 11a and 11b having moved closer to one another releasing their respective hooks 56 and 57 from the hooks 54 and 55 of the longitudinal members 4a and 4b of the rigid arm 1. The same situation is shown in figure 7 which is a view from below according to arrow VII of the figure 3 . Here we see that the ends 10a and 10b of the beams 11a and 11b come into abutment, which avoids any plastic deformation of the beams.

La figure 8 est une coupe selon la ligne VIII-VIII de la figure 3. On actionne le poussoir de droite 15a dans le sens de la flèche A. Le crochet 56 de la poutre 11 a se dégage du crochet 54 du longeron 4a. Au lieu d'exercer une pression identique sur le poussoir de gauche 15b, on exerce cette pression sur la gauche de la chape 3 selon le sens de la flèche B. Cette pression ne provoque en rien le déverrouillage de la partie gauche du fermoir grâce au dispositif de sécurité installé. Ce dispositif est ici l'oreille de gauche 53 (voir aussi figure 7) qui bute en position fermée du fermoir contre la partie rigide 59 du premier bras 1 située du côté du longeron 4b. On comprendra que si l'oreille 53 n'existait pas, la pression B exercée sur la gauche de la chape 3 provoquerait le déplacement de cette dernière vers la droite. Le rabat 51 de la chape pousserait alors le tube 65 ainsi que l'extrémité libre 10b de la poutre 11 b dans la même direction, provoquant ainsi le décrochage des crochets 55 et 57 et l'ouverture du fermoir. Il est clair qu'on trouverait la même situation si le poussoir de gauche 15b était activé et si une pression était exercée sur le côté droit de la chape 3. Dans ce cas ce serait l'oreille 52 qui serait agissante. En conclusion, pour ouvrir le fermoir, des pressions simultanées doivent être exercées sur les deux poussoirs, des pressions exercées sur la chape restant sans effet.The figure 8 is a section along the line VIII-VIII of the figure 3 . The right pusher 15a is actuated in the direction of the arrow A. The hook 56 of the beam 11a is disengaged from the hook 54 of the spar 4a. Instead of exerting an identical pressure on the left pusher 15b, this pressure is exerted on the left of the yoke 3 in the direction of the arrow B. This pressure does not cause the unlocking of the left part of the clasp by the security device installed. This device is here the left ear 53 (see also figure 7 ) which stops in the closed position of the clasp against the rigid portion 59 of the first arm 1 located on the side of the spar 4b. It will be understood that if the ear 53 did not exist, the pressure B exerted on the left of the screed 3 would cause the displacement of the latter to the right. The flap 51 of the yoke then push the tube 65 and the free end 10b of the beam 11b in the same direction, causing the stall hooks 55 and 57 and the opening of the clasp. It is clear that we would find the same situation if the left pusher 15b was activated and if pressure was exerted on the right side of the yoke 3. In this case it would be the ear 52 which would be active. In conclusion, to open the clasp, simultaneous pressures must be exerted on the two pushers, pressures exerted on the screed remaining without effect.

Les dessins 9 à 15 sont relatifs à un second mode d'exécution du fermoir réalisé selon l'invention, seconde exécution qui va être expliquée maintenant en détail.Drawings 9 to 15 relate to a second embodiment of the clasp made according to the invention, the second embodiment which will now be explained in detail.

Les figures 9 et 10 sont des vues en perspective du fermoir de bracelet qui comprend un premier bras rigide 1 équipé de deux longerons 4a et 4b. L'extrémité 5 de ce bras est arrangé pour recevoir un brin du bracelet et se présente sous la forme d'un pont reliant les deux longerons. L'autre extrémité 20 des longerons 4a et 4b est traversée par un arbre 22 autour duquel est articulé une première extrémité 21 d'un second bras dépliant 2. A proximité de cette articulation, on observe que les longerons sont réunis par des ponts 23 qui assurent d'une part une bonne rigidité au premier bras 1 et d'autre part qui servent de butée au second bras quand il est replié dans le premier bras. De la première extrémité 21 du second bras 2 émergent des première et seconde poutres 11a et 11b qui présentent des extrémités libres 10a et 10b traversées par un arbre 71. Autour de cet arbre 71 est articulée une chape 3 munie de premier et second rabats 50 et 51 équipés de trous 80 prévus pour recevoir une barrette, point de départ d'un autre brin du bracelet. Les figures 9 et 10 montrent encore des premier et second poussoirs 15a et 15b qui font corps avec les première et second poutres 11 a et 11 b. On remarquera que ces poussoirs ne sont pas placés dans l'alignement de l'arbre 71 traversant les extrémités libres des poutres, mais précédent cet alignement. Un mécanisme de verrouillage est arrangé pour maintenir accroché le second bras 2 sur le premier bras 1 quand aucune pression n'est exercée simultanément sur les poussoirs 15a et 15b. A cet effet, les longerons 4a et 4b du premier bras 1 portent respectivement des crochets 54 et 55 fixes arrangés pour recevoir respectivement des crochets 56 et 57 dont sont équipées les extrémités mobiles des poutres 11 a et 11 b, cet accrochage étant particulièrement bien représenté dans la coupe de la figure 12.The Figures 9 and 10 are perspective views of the bracelet clasp which comprises a first rigid arm 1 equipped with two longitudinal members 4a and 4b. The end 5 of this arm is arranged to receive a strand of the bracelet and is in the form of a bridge connecting the two longitudinal members. The other end 20 of the longitudinal members 4a and 4b is traversed by a shaft 22 around which is articulated a first end 21 of a second folding arm 2. In the vicinity of this joint, it is observed that the longitudinal members are joined by bridges 23 which on the one hand ensure good rigidity to the first arm 1 and secondly that serve as a stop to the second arm when it is folded in the first arm. From the first end 21 of the second arm 2 emerge from the first and second beams 11a and 11b which have free ends 10a and 10b traversed by a shaft 71. Around this shaft 71 is articulated a yoke 3 provided with first and second flaps 50 and 51 equipped with holes 80 provided for receiving a bar, starting point of another strand of the bracelet. The Figures 9 and 10 still show first and second pushers 15a and 15b which are integral with the first and second beams 11a and 11b. Note that these pushers are not placed in alignment with the shaft 71 passing through the free ends of the beams, but preceding this alignment. A locking mechanism is arranged to hold the second arm 2 hooked on the first arm 1 when no pressure is exerted simultaneously on the pushers 15a and 15b. For this purpose, the longitudinal members 4a and 4b of the first arm 1 carry respectively fixed hooks 54 and 55 arranged to receive respectively hooks 56 and 57 which are equipped with the movable ends of the beams 11a and 11b, this attachment being particularly well represented in the cup of the figure 12 .

Par rapport à ce qui vient d'être dit ci-dessus, en principe connu de documents antérieurs, le fermoir de la présente invention se distingue par une disposition remarquable et originale en ce sens qu'il comporte un dispositif de sécurité empêchant le déplacement latéral de la chape 3 conduisant à un déverrouillage intempestif du fermoir quand des pressions simultanées sont exercées à la fois sur un poussoir et sur un rabat de la chape 3 opposé audit poussoir.Compared to what has just been said above, in principle known from prior documents, the clasp of the present invention is distinguished by a remarkable and original arrangement in that it comprises a safety device preventing lateral displacement of the yoke 3 leading to an untimely unlocking of the clasp when simultaneous pressures are exerted on both a pusher and a flap of the yoke 3 opposite said pusher.

Les figures 9 à 15 illustrent un second mode d'exécution de ce dispositif de sécurité. Ces figures montrent que l'arbre traversant les extrémités libres 10a et 10b des première et seconde poutres 11a et 11 b et autour duquel est articulée la chape 3 est une goupille 71 chassée dans une entretoise 70 s'appuyant de part et d'autre sur les parois internes 74 et 75 que présentent les premier et second rabats 50 et 51 de la chape 3.The Figures 9 to 15 illustrate a second embodiment of this security device. These figures show that the shaft passing through the free ends 10a and 10b of the first and second beams 11a and 11b and around which is articulated the yoke 3 is a pin 71 driven into a spacer 70 resting on both sides on the inner walls 74 and 75 that have the first and second flaps 50 and 51 of the yoke 3.

Le dispositif de sécurité proprement dit se présente sous la forme de première et seconde excroissances 72 et 73 émergeant de l'entretoise 70, ces excroissances formant butées et s'appuyant de part et d'autre du premier bras rigide 1 quand le fermoir est en position de fermeture.The safety device itself is in the form of first and second protrusions 72 and 73 emerging from the spacer 70, these protrusions forming abutments and supported on either side of the first rigid arm 1 when the clasp is in position. closing position.

En s'aidant des coupes des figures 12, 13 et 15 opérées sur la vue de côté de la figure 11, on va montrer maintenant comment fonctionne ce dispositif de sécurité.With the help of the cuts of Figures 12, 13 and 15 operated on the side view of the figure 11 we will now show how this security device works.

La figure 12 est une coupe selon la ligne XII-XII de la figure 11. Les poussoirs 15a et 15b ne sont pas actionnés. Le fermoir est verrouillé, les crochets 54 et 55 des longerons 4a et 4b surmontant respectivement les crochets 56 et 57 des poutres 11 a et 11 b.The figure 12 is a section along the line XII-XII of the figure 11 . The pushers 15a and 15b are not actuated. The clasp is locked, the hooks 54 and 55 of the longitudinal members 4a and 4b respectively overlying the hooks 56 and 57 of the beams 11a and 11b.

La figure 13 est une coupe selon la ligne XIII-XIII de la figure 11. Les poussoirs 15a et 15b sont actionnés dans le sens des flèches A-A. Le fermoir est déverrouillé, les poutres 11a et 11b s'étant rapprochées l'une de l'autre libérant leur crochet respectif 56 et 57 des crochets 54 et 55 des longerons 4a et 4b du bras rigide 1. La même situation est montrée en figure 14 qui est une vue de dessous selon la flèche XIV de la figure 11. Ici l'on voit que les extrémités 10a et 10b des poutres 11 a et 11 b arrivent en butée, ce qui évite toute déformation plastique des poutres.The figure 13 is a section along line XIII-XIII of the figure 11 . The pushers 15a and 15b are actuated in the direction of the arrows AA. The clasp is unlocked, the beams 11a and 11b having moved closer to one another, releasing their respective hooks 56 and 57 from the hooks 54 and 55 of the longitudinal members 4a and 4b of the rigid arm 1. The same situation is shown in FIG. figure 14 which is a view from below according to arrow XIV of the figure 11 . Here we see that the ends 10a and 10b of the beams 11a and 11b come into abutment, which avoids any plastic deformation of the beams.

La figure 15 est une coupe selon la ligne XV-XV de la figure 11. On actionne le poussoir de droite 15a dans le sens de la flèche A. Le crochet 56 de la poutre 11 a se dégage du crochet 54 du longeron 4a. Au lieu d'exercer une pression identique sur le poussoir de gauche 15b, on exerce une pression sur la gauche de la chape 3 selon le sens de la flèche B. Cette pression ne provoque en rien le déverrouillage de la partie gauche du fermoir grâce au dispositif de sécurité installé. Ce dispositif est ici l'excroissance de gauche 73 (voir aussi figure 14) qui bute en position fermée du fermoir contre la partie rigide 59 du premier bras 1 située du côté du longeron 4b. On comprendra que si l'excroissance 73 n'existait pas, la pression B exercée sur la gauche de la chape 3 provoquerait le déplacement de cette dernière vers la droite. Le rabat 51 de la chape 3 pousserait alors l'entretoise 70 (dépourvue d'excroissance) ainsi que l'extrémité libre 10b de la poutre 11 b dans la même direction provoquant ainsi le décrochage des crochets 55 et 57 et l'ouverture du fermoir. Il est clair qu'on trouverait la même situation si le poussoir de gauche 15b était activé et si une pression était exercée sur le côté droit de la chape 3. Dans ce cas, ce serait l'excroissance 72 qui serait agissante. Ainsi, comme dans le mode d'exécution précédent, des pressions simultanées doivent être exercées sur les deux poussoirs pour ouvrir le fermoir, des pressions exercées sur la chape restant sans effet.The figure 15 is a section along line XV-XV of the figure 11 . The right pusher 15a is actuated in the direction of the arrow A. The hook 56 of the beam 11a is disengaged from the hook 54 of the spar 4a. Instead of exerting an identical pressure on the left pusher 15b, pressure is exerted on the left of the yoke 3 in the direction of the arrow B. This pressure does not cause the unlocking of the left part of the clasp by the security device installed. This device is here the left excrescence 73 (see also figure 14 ) which stops in the closed position of the clasp against the rigid portion 59 of the first arm 1 located on the side of the spar 4b. It will be understood that if the protrusion 73 did not exist, the pressure B exerted on the left of the yoke 3 would cause the displacement of the latter to the right. The flap 51 of the yoke 3 then push the spacer 70 (devoid of protrusion) and the free end 10b of the beam 11b in the same direction causing the stall hooks 55 and 57 and the opening of the clasp . It is clear that we would find the same situation if the left pusher 15b was activated and if pressure was exerted on the right side of the yoke 3. In this case, it would be the protrusion 72 that would be active. Thus, as in the previous embodiment, simultaneous pressures must be exerted on the two pushers to open the clasp, pressures exerted on the yoke remaining without effect.

L'invention qui vient d'être décrite dans le détail permet la mise en oeuvre d'une chape 3 très légère réalisée par découpage et par pliage d'un métal. Les premier et second bras 1 et 2 peuvent être réalisés par moulage par injection de métal (Metal Injection Molding, MIM).The invention which has just been described in detail allows the implementation of a very light screed 3 made by cutting and bending a metal. The first and second arms 1 and 2 can be made by metal injection molding (MIM).

Claims (4)

  1. Bracelet clasp including at least two arms hinged to each other, a first rigid arm (1) fitted with two side portions (4a, 4b), one end (5) of said first arm being attached to a bracelet strand, the other end (20) being hinged to a first end (21) of a second unfolding arm (2) from which there extend first (11 a) and second (11 b) bars, the free ends (10a, 10b) of which are traversed by an arbour (61, 71) about which there is hinged a cover (3), provided with first (50) and second (51) flaps to which another bracelet strand is attached, first (15a) and second (15b) push-pieces integral with or fixed to said first (11 a) and second (11 b) bars preceding the place where said bars are traversed by said arbour, and a locking mechanism (54, 56; 55, 57) arranged to keep the second arm (2) coupled to the first (1) when no pressure is simultaneously exerted on the push-pieces (15a, 15b), characterized in that the clasp includes a safety device (52, 53; 72, 73) which prevents a lateral movement of the cover (3) from causing the clasp to unlock when pressure (A, B) is simultaneously exerted both on a push-piece and on a flap of the cover (3) opposite said push-piece.
  2. Clasp according to claim 1, characterized in that the arbour passing through the free ends (10a, 10b) of the first (11 a) and second (11 b) bars and about which the cover (3) is hinged is a pin (61), provided with first (62) and second (63) notches, arranged to retain first (64) and second (65) tubes, each provided with a constricted portion (66, 67), said tubes being arranged between said free ends (10a, 10b) and said first (50) and second (51) flaps of the cover (3) and in that the safety device consists of first (52) and second (53) raised ears in the cover (3), said ears forming stop members and abutting on both sides (58, 59) of the first rigid arm (1) when the clasp is in the closing position.
  3. Clasp according to claim 1, characterized in that the arbour passing through the free ends (10a, 10b) of the first (11 a) and second (11 b) bars and about which the cover (3) is hinged is a pin (71), driven into a strut (70) abutting on both sides on the internal walls (74, 75) of the first (50) and second (51) flaps of the cover (3), and in that the safety device consists of first (72) and second (73) extended portions extending from said strut (70), said extended portions forming stop members and abutting on both sides (58, 59) of the first rigid arm (1) when the clasp is in the closing position.
  4. Clasp according to claim 1, characterized in that the first (1) and second (2) arms are made by metal injection moulding (MIM) and in that the cover (3) is made of cut and folded metal.
EP20110159072 2011-03-21 2011-03-21 Bracelet clasp Active EP2502515B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP20110159072 EP2502515B1 (en) 2011-03-21 2011-03-21 Bracelet clasp
US13/414,190 US8918965B2 (en) 2011-03-21 2012-03-07 Bracelet clasp
JP2012054132A JP6147960B2 (en) 2011-03-21 2012-03-12 Bracelet clasp
CN201210073754.0A CN102687936B (en) 2011-03-21 2012-03-20 Bracelet clasp
HK13103546.8A HK1176528A1 (en) 2011-03-21 2013-03-21 Bracelet clasp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20110159072 EP2502515B1 (en) 2011-03-21 2011-03-21 Bracelet clasp

Publications (2)

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EP2502515A1 EP2502515A1 (en) 2012-09-26
EP2502515B1 true EP2502515B1 (en) 2013-09-04

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EP20110159072 Active EP2502515B1 (en) 2011-03-21 2011-03-21 Bracelet clasp

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US (1) US8918965B2 (en)
EP (1) EP2502515B1 (en)
JP (1) JP6147960B2 (en)
CN (1) CN102687936B (en)
HK (1) HK1176528A1 (en)

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Also Published As

Publication number Publication date
EP2502515A1 (en) 2012-09-26
JP2012196440A (en) 2012-10-18
US8918965B2 (en) 2014-12-30
CN102687936B (en) 2015-12-02
JP6147960B2 (en) 2017-06-14
US20120240359A1 (en) 2012-09-27
CN102687936A (en) 2012-09-26
HK1176528A1 (en) 2013-08-02

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