EP0843977A1 - Fastener with extending buckle - Google Patents

Fastener with extending buckle Download PDF

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Publication number
EP0843977A1
EP0843977A1 EP97119059A EP97119059A EP0843977A1 EP 0843977 A1 EP0843977 A1 EP 0843977A1 EP 97119059 A EP97119059 A EP 97119059A EP 97119059 A EP97119059 A EP 97119059A EP 0843977 A1 EP0843977 A1 EP 0843977A1
Authority
EP
European Patent Office
Prior art keywords
blade
clasp
pivoting
base
lifted
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.)
Granted
Application number
EP97119059A
Other languages
German (de)
French (fr)
Other versions
EP0843977B1 (en
Inventor
Michel Champion
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
SMH 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, SMH Management Services AG filed Critical Swatch Group Management Services AG
Publication of EP0843977A1 publication Critical patent/EP0843977A1/en
Application granted granted Critical
Publication of EP0843977B1 publication Critical patent/EP0843977B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/18—Fasteners for straps, chains or the like
    • A44C5/22—Fasteners for straps, chains or the like for closed straps
    • A44C5/24—Fasteners for straps, chains or the like for closed straps with folding devices
    • 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
    • Y10T24/2102—Cam lever and loop
    • Y10T24/2104—Step adjusted
    • Y10T24/2115—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.
    • Y10T24/21—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
    • Y10T24/4782—Watch strap

Definitions

  • the present invention relates to a clasp of the folding clasp type with a base blade on which is likely to fall back at least one blade pivotable, said blades being attached together by one of their ends by means of a joint, these blades including a notch device allowing them to hang on top of each other in the closed position.
  • Document CH-A-663 522 describes a buckle clasp deployant comprising a base blade provided with a elongated opening, blade on which is likely to fold down a pivoting blade provided with two horns elongated in the direction of the opening made in the base blade.
  • the two horns of the swivel blade engage force in the opening of the base blade so this system constitutes a notch closure.
  • a movement that would tend to bend the clasp in the direction of its length does not lead to an opening untimely said clasp, this untimely opening however, may occur if the horns and the opening were directed in a perpendicular direction to the direction of the blades.
  • the clasp described in document FR-A-2 735 335 also has a notched hooking device where a first tab is lifted on the base blade and where a second tab is lifted on the swivel blade, these two tabs located in the closed position, back back-to-back and head to tail.
  • This document contemplates the use a second pivoting blade whose attachment can be made either by notch as described above, or by pusher using the same basic blade. So the blade basic is versatile in that it can be mounted on it, a pivoting blade fitted with a tongue, either a swivel blade fitted with an actuatable pusher manually.
  • the clasp of the present invention is provided with a notch device with two tabs lifted in the base blade and facing each other in a direction perpendicular to the longitudinal direction of the clasp and a shaped fork of tuning fork made in the pivoting blade, this fork being oriented in the longitudinal direction of the clasp and having two branches whose ends are curved, each of said ends being arranged to snap onto one of the tabs lifted in the base blade when the clasp is in position closing.
  • the clasp for bracelet is of the folding clasp type.
  • This clasp has a base blade 1 on which is susceptible to fold down at least one pivoting blade 2.
  • These blades 1 and 2 are tied together by one of their ends by means of an articulation 3.
  • This articulation is carried out in the simplest way by a bar passing through holes provided in the end of the blades 1 and 2.
  • the clasp can include a second pivoting blade 26 capable of fold down on base blade 1.
  • this second blade is attached to the other end of the base blade 1 by means of a second articulation 17.
  • the first strand of the bracelet is attached to the pivoting blade 2 by means of a bar crossing the hole 15, while a second strand of the bracelet is attached to the pivoting blade 26 by means of a bar crossing the hole 16.
  • the base blade 1 and the blades swivel 2 and 26 have a double notch device which allows the pivoting blades to hang on the blade in the closed position of the clasp.
  • the clasp may have only one blade pivoting 2.
  • the first strand of the bracelet is attached to the other end of the pivoting blade 2 by a bar crossing hole 15 and the second strand of bracelet is attached to the other end of the blade base 1 at the location shown by articulation 17.
  • the latter will be extended to present a length roughly equal to the length of the blade based.
  • FIG. 1 shows that two tabs 4 and 5 are lifted in base blade 1. These tabs are arranged to face each other in one direction perpendicular to the longitudinal direction of the clasp this longitudinal direction being marked by the letter Y.
  • Figure 2 shows that in the pivoting blade 2 is practiced a fork 6 in the form of a tuning fork, this fork being directed in the longitudinal direction of the clasp.
  • fork in the form of a tuning fork we mean here an element having two branches 7 and 8 of large length and connected by a bridge, which is by no means the case of the horns cited in the prior art, essentially very short and more like a U than a tuning fork.
  • the ends 9 and 10 of the branches 7 and 8 of the fork 6 are bent and arranged for come to grip on one of the tongues lifted in the blade basic and this when the clasp is in position closing.
  • each bulge 11 and 12 is provided with a plane inclined 13 and 14, this inclined plane cooperating with the corresponding tab 4 and 5 lifted in the blade base 1 for notching the pivoting blade 2 on said blade base 1.
  • Figure 3 is a section along line III-III of the Figure 2.
  • the blade base 1 provided with its raised tabs 4 and 5.
  • the pivoting blade 2 whose branches 7 and 8 of its fork 6 are shown by the ends 9 and 10 of the branches.
  • the ends 9 and 10 are provided with bulges 11 and 12 having each inclined plane 13 and 14.
  • Figure 3 shows that the plans inclined 13 and 14 are supported under the tabs 4 and 5 at the point marked with an arrow 20 and 21 to block the clasp.
  • the base blade 1 and the swivel blade 2 can advantageously be cut into sections strip, stiffer than folded sheet, easily deformable. We could also consider molding by metal injection (MIM) for the manufacture of said rooms.
  • MIM metal injection
  • Figures 1 and 2 show that in the case where the clasp has two pivoting blades, these first and second blades are provided with a hooking device notch made according to the invention.
  • FIGS 4 to 7 therefore show that the base blade 1 forms with the pivoting blade 30 a locking device with pusher.
  • the locking device pusher comprises a set 31 pivotally mounted on the other end of the pivoting blade 30 by means of a articulation 32.
  • This assembly 31 includes a frame 33 on which slide two pushers 34 and 35 each recalled by a spring 36 and 37.
  • Each of these pushers 34 and 35 has a hook 38 and 39 cut in a T shape.
  • the bar horizontal of the T is likely to engage under the ears 22, 24 and 23, 25 of the tabs 4 and 5 lifted in base blade 1 to lock the clasp.
  • the frame 33 pivots on the pivoting blade 30 by means of the joint 32.
  • This frame 33 carries two pushers 34 and 35 which slide over him and are each recalled by a spring 36, 37.
  • the plunger 34 has a hook 38 in T-shape whose horizontal bar is taken under the ears 22 and 24 of the tongue 4.
  • the pusher 35 has a hook 39 in the shape of a T, the horizontal bar is taken under the ears 23 and 25 of the tab 5.
  • a first strand of the bracelet is attached to the assembly 31 by means of a bar crossing the hole 41 of the frame 33, while a second strand of the bracelet is attached to the blade pivoting 26 by means of a bar passing through the hole 16.
  • the base blade 1 receives a first blade swivel 30 equipped with a push device and a second pivoting blade 26 fitted with a notch device.
  • a first blade swivel 30 equipped with a push device and a second pivoting blade 26 fitted with a notch device.

Landscapes

  • Buckles (AREA)
  • Connection Of Plates (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Clamps And Clips (AREA)

Abstract

A bracelet fastening consisting of a base plate (1) and two upper plates (2) which are pivoted to its ends and clip into position against the base plate. The clip mechanism comprises raised tongues (4, 5) in pairs on the base plate and forks (6) on the upper plates which engage with them. Each of the forks has two branches with curved tips (9, 10) which pass between the ends of a pair of tongues and clip in place beneath them. Both base and upper plates are made from metal strip with the tongues and forks cut out of them.

Description

La présente invention est relative à un fermoir du type à boucle déployante comportant une lame de base sur laquelle est susceptible de se rabattre au moins une lame pivotante, lesdites lames étant attachées ensemble par l'une de leurs extrémités au moyen d'une articulation, ces lames comprenant un dispositif à cran leur permettant de s'accrocher l'une sur l'autre en position de fermeture.The present invention relates to a clasp of the folding clasp type with a base blade on which is likely to fall back at least one blade pivotable, said blades being attached together by one of their ends by means of a joint, these blades including a notch device allowing them to hang on top of each other in the closed position.

Un fermoir répondant à la définition donnée ci-dessus a déjà été proposé plusieurs fois.A clasp meeting the definition given above has already been proposed several times.

Le document CH-A-663 522 décrit un fermoir à boucle déployante comportant une lame de base pourvue d'une ouverture allongée, lame sur laquelle est susceptible de se rabattre une lame pivotante pourvue de deux cornes allongées dans le sens de l'ouverture pratiquée dans la lame de base. En position de fermeture du fermoir, les deux cornes de la lame pivotante viennent s'engager à force dans l'ouverture de la lame de base de sorte que ce système constitue une fermeture à cran. Comme l'ouverture et les cornes sont dirigées dans le sens longitudinal du fermoir, un mouvement qui tendrait à plier le fermoir dans le sens de sa longueur ne conduit pas à une ouverture intempestive dudit fermoir, cette ouverture intempestive risquant par contre de se produire si les cornes et l'ouverture étaient dirigées dans un sens perpendiculaire à la direction des lames.Document CH-A-663 522 describes a buckle clasp deployant comprising a base blade provided with a elongated opening, blade on which is likely to fold down a pivoting blade provided with two horns elongated in the direction of the opening made in the base blade. When the clasp is closed, the two horns of the swivel blade engage force in the opening of the base blade so this system constitutes a notch closure. Like the opening and the horns are directed in the longitudinal direction of the clasp, a movement that would tend to bend the clasp in the direction of its length does not lead to an opening untimely said clasp, this untimely opening however, may occur if the horns and the opening were directed in a perpendicular direction to the direction of the blades.

Des dispositifs analogues sont aussi décrits dans les documents CH-A-593 648, CH-A-353 567 et CH-A-671 499.Similar devices are also described in the documents CH-A-593 648, CH-A-353 567 and CH-A-671 499.

Le fermoir décrit dans le document FR-A-2 735 335 comporte aussi un dispositif d'accrochage à cran où une première languette est levée sur la lame de base et où une seconde languette est levée sur la lame pivotante, ces deux languettes se trouvant, en position de fermeture, dos à dos et en tête-bêche. Ce document envisage l'utilisation d'une seconde lame pivotante dont l'accrochage peut être réalisé soit à cran comme décrit ci-dessus, soit à poussoir en utilisant la même lame de base. Ainsi, la lame de base est polyvalente en ce sens qu'on peut monter sur elle, soit une lame pivotante équipée d'une languette, soit une lame pivotante équipée d'un poussoir actionnable manuellement.The clasp described in document FR-A-2 735 335 also has a notched hooking device where a first tab is lifted on the base blade and where a second tab is lifted on the swivel blade, these two tabs located in the closed position, back back-to-back and head to tail. This document contemplates the use a second pivoting blade whose attachment can be made either by notch as described above, or by pusher using the same basic blade. So the blade basic is versatile in that it can be mounted on it, a pivoting blade fitted with a tongue, either a swivel blade fitted with an actuatable pusher manually.

Tous ces systèmes présentent l'inconvénient de s'user rapidement et de ne plus assurer un bon crantage du fermoir après un nombre relativement faible de mouvements d'ouverture et de fermeture. Cela est dû essentiellement à la très courte longueur d'émergence des cornes, ce qui conduit à une amplitude de flexion extrêmement réduite, donc à une force de crantage élevée et, partant, à une usure rapide du système.All these systems have the disadvantage of wearing out quickly and no longer ensure a good notching of the clasp after a relatively small number of movements opening and closing. This is mainly due to the very short emergence length of the horns, which leads to an extremely reduced bending amplitude, therefore at a high notching force and therefore at a rapid system wear.

Pour pallier cet inconvénient, le fermoir de la présente invention est doté d'un dispositif à cran comportant deux languettes levées dans la lame de base et se faisant face dans un sens perpendiculaire à la direction longitudinale du fermoir et une fourche en forme de diapason pratiquée dans la lame pivotante, cette fourche étant dirigée dans le sens longitudinal du fermoir et présentant deux branches dont les extrémités sont recourbées, chacune desdites extrémités étant arrangée pour venir se cranter sur une des languettes levée dans la lame de base quand le fermoir est en position de fermeture.To overcome this drawback, the clasp of the present invention is provided with a notch device with two tabs lifted in the base blade and facing each other in a direction perpendicular to the longitudinal direction of the clasp and a shaped fork of tuning fork made in the pivoting blade, this fork being oriented in the longitudinal direction of the clasp and having two branches whose ends are curved, each of said ends being arranged to snap onto one of the tabs lifted in the base blade when the clasp is in position closing.

L'invention sera comprise maintenant à l'aide de la description qui suit et du dessin qui l'illustre à titre d'exemple et dans lequel :

  • la figure 1 est une vue en perspective du fermoir de l'invention en position ouverte;
  • la figure 2 est une vue en perspective du fermoir de la figure 1 en position fermée;
  • la figure 3 est une coupe selon la ligne III-III de la figure 2;
  • la figure 4 est une vue en perspective du fermoir de l'invention en position ouverte, une lame pivotante de ce fermoir présentant un dispositif de blocage à poussoir;
  • la figure 5 est une vue en perspective du fermoir de la figure 4 présenté en position fermée;
  • la figure 6 est une vue de dessus du dispositif à poussoir montré en figure 5; et
  • la figure 7 est une coupe selon la ligne VII-VII de la figure 6.
The invention will now be understood with the aid of the description which follows and of the drawing which illustrates it by way of example and in which:
  • Figure 1 is a perspective view of the clasp of the invention in the open position;
  • Figure 2 is a perspective view of the clasp of Figure 1 in the closed position;
  • Figure 3 is a section along line III-III of Figure 2;
  • Figure 4 is a perspective view of the clasp of the invention in the open position, a pivoting blade of this clasp having a pusher locking device;
  • Figure 5 is a perspective view of the clasp of Figure 4 presented in the closed position;
  • Figure 6 is a top view of the pusher device shown in Figure 5; and
  • FIG. 7 is a section along line VII-VII of FIG. 6.

Comme le montre bien la figure 1, le fermoir pour bracelet est du type à boucle déployante. Ce fermoir comporte une lame de base 1 sur laquelle est susceptible de se rabattre au moins une lame pivotante 2. Ces lames 1 et 2 sont attachées ensemble par l'une de leurs extrémités au moyen d'une articulation 3. Cette articulation est réalisée de la manière la plus simple par une barrette traversant des trous prévus dans l'extrémité des lames 1 et 2.As shown in Figure 1, the clasp for bracelet is of the folding clasp type. This clasp has a base blade 1 on which is susceptible to fold down at least one pivoting blade 2. These blades 1 and 2 are tied together by one of their ends by means of an articulation 3. This articulation is carried out in the simplest way by a bar passing through holes provided in the end of the blades 1 and 2.

Comme le montre la figure 1, le fermoir peut comporter une seconde lame pivotante 26 susceptible de se rabattre sur la lame de base 1. Dans ce cas, cette seconde lame est attachée à l'autre extrémité de la lame de base 1 au moyen d'une seconde articulation 17. Sans que la figure 1 le montre expressément, un premier brin du bracelet est attaché à la lame pivotante 2 au moyen d'une barrette traversant le trou 15, alors qu'un second brin du bracelet est attaché à la lame pivotante 26 au moyen d'une barrette traversant le trou 16. La lame de base 1 et les lames pivotantes 2 et 26 comportent un double dispositif à cran qui permet aux lames pivotantes de s'accrocher sur la lame de base en position de fermeture du fermoir.As shown in Figure 1, the clasp can include a second pivoting blade 26 capable of fold down on base blade 1. In this case, this second blade is attached to the other end of the base blade 1 by means of a second articulation 17. Without the figure 1 expressly shows it, the first strand of the bracelet is attached to the pivoting blade 2 by means of a bar crossing the hole 15, while a second strand of the bracelet is attached to the pivoting blade 26 by means of a bar crossing the hole 16. The base blade 1 and the blades swivel 2 and 26 have a double notch device which allows the pivoting blades to hang on the blade in the closed position of the clasp.

Le fermoir peut ne comporter qu'une seule lame pivotante 2. Dans ce cas le premier brin du bracelet est attaché à l'autre extrémité de la lame pivotante 2 par une barrette traversant le trou 15 et le second brin du bracelet est attaché à l'autre extrémité de la lame de base 1 à l'endroit figuré par l'articulation 17. On comprendra que dans le cas d'un fermoir à une seule lame pivotante, cette dernière sera rallongée pour présenter une longueur à peu près égale à la longueur de la lame de base.The clasp may have only one blade pivoting 2. In this case the first strand of the bracelet is attached to the other end of the pivoting blade 2 by a bar crossing hole 15 and the second strand of bracelet is attached to the other end of the blade base 1 at the location shown by articulation 17. We will understand that in the case of a single blade clasp swivel, the latter will be extended to present a length roughly equal to the length of the blade based.

On va décrire maintenant l'objet principal de la présente invention, à savoir le dispositif d'accrochage à cran.We will now describe the main object of the present invention, namely the attachment device to notch.

Comme le montre la figure 1, deux languettes 4 et 5 sont levées dans la lame de base 1. Ces languettes sont disposées de manière à se faire face dans un sens perpendiculaire à la direction longitudinale du fermoir cette direction longitudinale étant marquée par la lettre Y. La figure 2 montre que dans la lame pivotante 2 est pratiquée une fourche 6 en forme de diapason, cette fourche étant dirigée dans le sens longitudinal du fermoir. Par fourche en forme de diapason, on entend ici un élément présentant deux branches 7 et 8 de grande longueur et reliées par un pont, ce qui n'est nullement le cas des cornes citées dans l'art antérieur, essentiellement très courtes et ressemblant davantage à un U qu'à un diapason. Les extrémités 9 et 10 des branches 7 et 8 de la fourche 6 sont recourbées et arrangées pour venir se cranter sur une des languettes levée dans la lame de base et cela quand le fermoir est en position de fermeture.As shown in Figure 1, two tabs 4 and 5 are lifted in base blade 1. These tabs are arranged to face each other in one direction perpendicular to the longitudinal direction of the clasp this longitudinal direction being marked by the letter Y. Figure 2 shows that in the pivoting blade 2 is practiced a fork 6 in the form of a tuning fork, this fork being directed in the longitudinal direction of the clasp. By fork in the form of a tuning fork, we mean here an element having two branches 7 and 8 of large length and connected by a bridge, which is by no means the case of the horns cited in the prior art, essentially very short and more like a U than a tuning fork. The ends 9 and 10 of the branches 7 and 8 of the fork 6 are bent and arranged for come to grip on one of the tongues lifted in the blade basic and this when the clasp is in position closing.

Selon un mode particulier d'exécution de l'invention qui est représenté sur le dessin, les extrémités recourbées 9 et 10 des branches 7 et 8 sont pourvues chacune d'un renflement 11 et 12. Comme cela apparaít bien sur la figure 1, chaque renflement est pourvu d'un plan incliné 13 et 14, ce plan incliné coopérant avec la languette 4 et 5 correspondante levée dans la lame de base 1 pour cranter la lame pivotante 2 sur ladite lame de base 1.According to a particular embodiment of the invention which is shown in the drawing, the ends curved 9 and 10 of the branches 7 and 8 are provided each with a bulge 11 and 12. As it appears in FIG. 1, each bulge is provided with a plane inclined 13 and 14, this inclined plane cooperating with the corresponding tab 4 and 5 lifted in the blade base 1 for notching the pivoting blade 2 on said blade base 1.

Le crantage est particulièrement bien apparent sur la figure 3 qui est une coupe selon la ligne III-III de la figure 2. Sur cette figure 3 apparaít en coupe la lame de base 1 munie de ses languettes relevées 4 et 5. Apparaít également en coupe sur la figure 3 la lame pivotante 2 dont les branches 7 et 8 de sa fourche 6 sont représentées par les extrémités 9 et 10 des branches. Les extrémités 9 et 10 sont pourvues des renflements 11 et 12 possédant chacun un plan incliné 13 et 14. Quand le fermoir est en position de fermeture, la figure 3 montre que les plans inclinés 13 et 14 prennent appui sous les languettes 4 et 5 à l'endroit marqué d'une flèche 20 et 21 pour bloquer le fermoir. Pour ouvrir le fermoir, on exerce vers le haut une force sur la lame pivotante 2. A ce moment les plans inclinés 13 et 14 glissent sous les languettes 4 et 5 amenant les extrémités 9 et 10 des branches 7 et 8 à se rapprocher l'une de l'autre pour dégager la lame pivotante 2 de la lame de base 1. Pour fermer le fermoir, on rapproche les deux lames l'une de l'autre jusqu'à ce que les renflements 11 et 12 soient en contact avec les languettes 4 et 5. A ce moment, une pression sur la lame 2 provoque un mouvement fléchissant des branches 7 et 8, lesquelles se rapprochent l'une de l'autre jusqu'à ce que les plans inclinés 13 et 14 se trouvent pris sous les languettes 4 et 5.The notching is particularly apparent on the Figure 3 which is a section along line III-III of the Figure 2. In this Figure 3 appears in section the blade base 1 provided with its raised tabs 4 and 5. Appears also in section in FIG. 3 the pivoting blade 2 whose branches 7 and 8 of its fork 6 are shown by the ends 9 and 10 of the branches. The ends 9 and 10 are provided with bulges 11 and 12 having each inclined plane 13 and 14. When the clasp is in closed position, Figure 3 shows that the plans inclined 13 and 14 are supported under the tabs 4 and 5 at the point marked with an arrow 20 and 21 to block the clasp. To open the clasp, we exercise upwards a force on the pivoting blade 2. At this moment the planes inclined 13 and 14 slide under the tabs 4 and 5 bringing the ends 9 and 10 of the branches 7 and 8 to move closer to each other to release the pivoting blade 2 of the base blade 1. To close the clasp, we bring the two blades closer together until the bulges 11 and 12 are in contact with the tabs 4 and 5. At this time, pressure on the blade 2 causes a bending movement of branches 7 and 8, which approach each other until the inclined planes 13 and 14 are taken under the tabs 4 and 5.

Les figures montrent que les languettes 4 et 5 levées dans la lame de base 1 ainsi que la fourche 6 pratiquée dans la lame pivotante 2 sont avantageusement venues de matière dans les lames dont elles font partie. Ceci peut être mis en oeuvre par simple étampage, puis pliage. On évite ainsi toute pièce rapportée, fragile à l'emploi et onéreuse.The figures show that the tabs 4 and 5 lifted in the base blade 1 as well as the fork 6 made in the pivoting blade 2 have advantageously come from matter in the blades of which they are part. This can be implemented by simple stamping, then folding. We thus avoids any patch, fragile to use and expensive.

La lame de base 1 ainsi que la lame pivotante 2 peuvent avantageusement être tronçonnées dans des profilés en bande, plus rigides que de la tôle pliée, facilement déformable. On pourrait aussi envisager le moulage par injection métallique (MIM) pour la fabrication desdites pièces.The base blade 1 and the swivel blade 2 can advantageously be cut into sections strip, stiffer than folded sheet, easily deformable. We could also consider molding by metal injection (MIM) for the manufacture of said rooms.

Les figures 1 et 2 montrent que dans le cas où le fermoir comporte deux lames pivotantes, ces première et seconde lames sont pourvues d'un dispositif d'accrochage à cran réalisé selon l'invention.Figures 1 and 2 show that in the case where the clasp has two pivoting blades, these first and second blades are provided with a hooking device notch made according to the invention.

On peut imaginer cependant le cas où l'une des lames pivotantes est pourvue d'un dispositif d'accrochage à poussoir, l'autre de ces lames étant pourvue du dispositif d'accrochage à cran selon l'invention. Ce cas est illustré aux figures 4 à 7. Dans ces dernières figures, la lame pivotante 2 des figures 1 et 2 est remplacée par la lame pivotante 30. On remarque cependant que, dans les deux cas de figure, on utilise une seule et unique lame de base 1 comme cela est bien apparent sur les figures 1 et 4.One can however imagine the case where one of the blades swivel is provided with a hooking device pusher, the other of these blades being provided with the device notch hooking according to the invention. This case is illustrated in Figures 4 to 7. In the latter figures, the blade swivel 2 of Figures 1 and 2 is replaced by the blade pivoting 30. Note, however, that in both cases in figure, we use a single base blade 1 as is very apparent in Figures 1 and 4.

Les figures 4 à 7 montrent donc que la lame de base 1 forme avec la lame pivotante 30 un dispositif de blocage à poussoir. Pour ce faire, le dispositif de blocage à poussoir comporte un ensemble 31 monté pivotant sur l'autre extrémité de la lame pivotante 30 au moyen d'une articulation 32. Cet ensemble 31 comporte un cadre 33 sur lequel coulissent deux poussoirs 34 et 35 rappelés chacun par un ressort 36 et 37. Chacun de ces poussoirs 34 et 35 porte un crochet 38 et 39 taillé en forme de T. La barre horizontale du T est susceptible de s'engager sous les oreilles 22, 24 et 23, 25 des languettes 4 et 5 levées dans la lame de base 1 pour bloquer le fermoir.Figures 4 to 7 therefore show that the base blade 1 forms with the pivoting blade 30 a locking device with pusher. To do this, the locking device pusher comprises a set 31 pivotally mounted on the other end of the pivoting blade 30 by means of a articulation 32. This assembly 31 includes a frame 33 on which slide two pushers 34 and 35 each recalled by a spring 36 and 37. Each of these pushers 34 and 35 has a hook 38 and 39 cut in a T shape. The bar horizontal of the T is likely to engage under the ears 22, 24 and 23, 25 of the tabs 4 and 5 lifted in base blade 1 to lock the clasp.

Ce dispositif, vu en perspective sur les figures 4 et 5 va être expliqué maintenant de manière plus détaillée en s'aidant des figures en plan 6 et en coupe 7.This device, seen in perspective in Figures 4 and 5 will now be explained in more detail in with the help of the figures in plan 6 and in section 7.

Le cadre 33 pivote sur la lame pivotante 30 au moyen de l'articulation 32. Ce cadre 33 porte deux poussoirs 34 et 35 qui glissent sur lui et sont rappelés chacun par un ressort 36, 37. Le poussoir 34 comporte un crochet 38 en forme de T dont la barre horizontale est prise sous les oreilles 22 et 24 de la languette 4. De manière analogue, le poussoir 35 comporte un crochet 39 en forme de T dont la barre horizontale est prise sous les oreilles 23 et 25 de la languette 5. Pour fermer le dispositif, on rapproche la lame pivotante 30 ainsi que l'ensemble 31 de la lame de base 1. En appuyant sur le tout, on fait glisser, contre la force de rappel des ressorts 36 et 37, respectivement les barres horizontales des crochets 38 et 39 le long des oreilles 22, 24 et 23, 25 jusqu'à ce que ces barres se trouvent prises sous les oreilles. Dès cet instant le fermoir est bloqué et aucune force ascensionnelle exercée sur la lame pivotante 30, n'est capable de l'ouvrir, cette ouverture ne pouvant intervenir que si l'on presse sur les poussoirs pour dégager les crochets 38 et 39 des oreilles 22, 24 et 23, 25.The frame 33 pivots on the pivoting blade 30 by means of the joint 32. This frame 33 carries two pushers 34 and 35 which slide over him and are each recalled by a spring 36, 37. The plunger 34 has a hook 38 in T-shape whose horizontal bar is taken under the ears 22 and 24 of the tongue 4. Similarly, the pusher 35 has a hook 39 in the shape of a T, the horizontal bar is taken under the ears 23 and 25 of the tab 5. To close the device, we bring together the pivoting blade 30 as well as the assembly 31 of the blade base 1. By pressing on the whole, we slide, against the return force of springs 36 and 37, respectively the horizontal bars of the hooks 38 and 39 along the ears 22, 24 and 23, 25 until these bars are caught under the ears. From this moment the clasp is locked and no upward force exerted on the pivoting blade 30, is only able to open it, this opening can only intervene if you press on the pushers to release hooks 38 and 39 from the ears 22, 24 and 23, 25.

Dans le cas de l'exécution présentée aux figures 4 et 5, un premier brin du bracelet est attaché à l'ensemble 31 au moyen d'une barrette traversant le trou 41 du cadre 33, alors qu'un second brin du bracelet est attaché à la lame pivotante 26 au moyen d'une barrette traversant le trou 16. Ici la lame de base 1 reçoit une première lame pivotante 30 équipée d'un dispositif à poussoir et une seconde lame pivotante 26 équipée d'un dispositif à cran. Pour éviter que la lame 26 ne puisse être ouverte seule quand le fermoir est en position de fermeture, on a équipé l'élément 31 d'un toit 40 qui recouvre l'extrémité de la lame 26.In the case of the execution shown in Figures 4 and 5, a first strand of the bracelet is attached to the assembly 31 by means of a bar crossing the hole 41 of the frame 33, while a second strand of the bracelet is attached to the blade pivoting 26 by means of a bar passing through the hole 16. Here the base blade 1 receives a first blade swivel 30 equipped with a push device and a second pivoting blade 26 fitted with a notch device. To prevent the blade 26 from being opened alone when the clasp is in the closed position, we have fitted element 31 of a roof 40 which covers the end of the blade 26.

On voit que par des moyens très simples (enlèvement et remise en place d'une simple barrette) on peut transformer un fermoir bloqué à cran en un fermoir bloqué par poussoir. On peut ainsi augmenter la sécurité de fermeture du fermoir et cela en conservant dans tous les cas la même lame de base.We see that by very simple means (removal and replacing a simple bar) we can transform a notched clasp into a blocked clasp by pusher. This can increase the security of closure of the clasp and this by keeping in all case the same basic blade.

Claims (7)

Fermoir pour bracelet du type à boucle déployante comportant une lame de base (1) sur laquelle est susceptible de se rabattre au moins une première lame pivotante (2), lesdites lames étant attachées ensemble par l'une de leurs extrémités au moyen d'une articulation (3), ces lames comprenant un dispositif à cran leur permettant de s'accrocher l'une sur l'autre en position de fermeture, caractérisé par le fait que le dispositif à cran comporte deux languettes (4, 5) levées dans la lame de base (1) et se faisant face dans un sens perpendiculaire à la direction longitudinale (Y) du fermoir, et une fourche (6) en forme de diapason pratiquée dans la lame pivotante (2), cette fourche étant dirigée dans le sens longitudinal du fermoir et présentant deux branches (7, 8) dont les extrémités (9, 10) sont recourbées, chacune desdites extrémités étant arrangée pour venir se cranter sur une des languettes levée dans la lame de base quand le fermoir est en position de fermeture.Folding clasp type bracelet clasp comprising a base blade (1) on which is likely to fall back at least a first blade pivoting (2), said blades being attached together by one of their ends by means of a joint (3), these blades comprising a notch device allowing them to hang onto each other in the closed position, characterized in that the notch device comprises two tabs (4, 5) lifted in the base blade (1) and facing each other in a direction perpendicular to the longitudinal direction (Y) of the clasp, and a fork (6) in the form of a tuning fork formed in the pivoting blade (2), this fork being directed in the longitudinal direction of the clasp and having two branches (7, 8) whose ends (9, 10) are bent, each of said ends ends being arranged to come to rest on a tongues lifted in the base blade when the clasp is in the closed position. Fermoir selon la revendication 1, caractérisé par le fait que les extrémités recourbées (9, 10) des deux branches (7, 8) sont pourvues chacune d'un renflement (11, 12) sur lequel est pratiqué un plan incliné (13, 14), ledit plan incliné coopérant avec la languette (4, 5) correspondante levée dans la lame de base (1) pour cranter la lame pivotante (2) sur ladite lame de base (1).Clasp according to claim 1, characterized by the fact that the curved ends (9, 10) of the two branches (7, 8) are each provided with a bulge (11, 12) on which an inclined plane (13, 14) is practiced, said inclined plane cooperating with the tongue (4, 5) corresponding lifted in the base blade (1) for notching the pivoting blade (2) on said base blade (1). Fermoir selon la revendication 1, caractérisé par le fait que les languettes (4, 5) levées dans la lame de base (1) et la fourche (6) pratiquée dans la lame pivotante (2) sont venues de matière dans les lames dont elles font partie.Clasp according to claim 1, characterized by the fact that the tabs (4, 5) lifted in the blade base (1) and the fork (6) made in the blade swivel (2) came from material in the blades of which they are part. Fermoir selon la revendication 1, caractérisé par le fait que la lame de base (1) et la lame pivotante (2) sont tronçonnées dans des profilés en bande.Clasp according to claim 1, characterized by the fact that the base blade (1) and the pivoting blade (2) are cut into strip profiles. Fermoir selon la revendication 1, caractérisé par le fait que sur la lame de base (1) est susceptible de se rabattre une seconde lame pivotante (26, 30) arrangée pour former avec la lame de base (1) soit un dispositif d'accrochage à cran (26), soit un dispositif d'accrochage à poussoir (30), la même lame de base (1) étant utilisée quelle que soit la seconde lame pivotante (26, 30) mise en oeuvre.Clasp according to claim 1, characterized by the fact that on the base blade (1) is likely to fold down a second pivoting blade (26, 30) arranged to form with the base blade (1) either a device notch hooking (26), i.e. a hooking device push button (30), the same base blade (1) being used whatever the second pivoting blade (26, 30) artwork. Fermoir selon la revendication 5, caractérisé par le fait que la seconde lame pivotante (26) est exécutée de la même façon que le dispositif d'accrochage à cran équipant la première lame pivotante (2).Clasp according to claim 5, characterized by the fact that the second pivoting blade (26) is executed the same way as the latching hook equipping the first pivoting blade (2). Fermoir selon la revendication 5, caractérisé par le fait que le dispositif d'accrochage à poussoir de la seconde lame pivotante (30) comporte un ensemble (31) monté pivotant sur l'autre extrémité de la lame pivotante (30) au moyen d'une articulation (32), ledit ensemble comportant un cadre (33) sur lequel coulissent deux poussoirs (34, 35) rappelés chacun par un ressort (36, 37), ces poussoirs comprenant chacun un crochet (38, 39) en forme de T dont la partie horizontale est susceptible de s'engager sous les oreilles (22, 24; 23, 25) des languettes (4, 5) levées dans la lame de base (1) pour bloquer le fermoir.Clasp according to claim 5, characterized by the fact that the push hook of the second pivoting blade (30) has an assembly (31) pivotally mounted on the other end of the pivoting blade (30) by means of a joint (32), said assembly comprising a frame (33) on which two slide pushers (34, 35) each returned by a spring (36, 37), these pushers each comprising a hook (38, 39) T-shaped whose horizontal part is susceptible to engage under the ears (22, 24; 23, 25) of tabs (4, 5) lifted in the base blade (1) to lock the clasp.
EP97119059A 1996-11-06 1997-10-31 Fastener with extending buckle Expired - Lifetime EP0843977B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9613529 1996-11-06
FR9613527 1996-11-06
FR9613529 1996-11-06
FR9613527 1996-11-06

Publications (2)

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EP0843977A1 true EP0843977A1 (en) 1998-05-27
EP0843977B1 EP0843977B1 (en) 2002-07-03

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EP97119059A Expired - Lifetime EP0843977B1 (en) 1996-11-06 1997-10-31 Fastener with extending buckle

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US (1) US5857243A (en)
EP (1) EP0843977B1 (en)
JP (1) JP4037495B2 (en)
CN (1) CN1145428C (en)
DE (1) DE69713713T2 (en)
HK (1) HK1013592A1 (en)
SG (1) SG63765A1 (en)
TW (1) TW564699U (en)

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CH691160A5 (en) * 1996-08-27 2001-05-15 Rolex Montres Folding clasp.
US6442743B1 (en) 1998-06-12 2002-08-27 Monterey Design Systems Placement method for integrated circuit design using topo-clustering
DE69942301D1 (en) * 1998-07-02 2010-06-10 Citizen Holdings Co Ltd TURNING STOPPER FOR FOLDING CLOSURE ELEMENT OF A BANDED JEWELERY
CN2358729Y (en) * 1999-01-04 2000-01-19 加宏企业有限公司 Watchband buckle pack of metal watchband
JP2003275005A (en) * 2002-03-26 2003-09-30 Seiko Instruments Inc Arm-mounted portable apparatus
FR2842081B1 (en) * 2002-07-11 2004-08-27 Chatelain Sa G & F AUTOMATIC CLASP FOR A WATCH STRAP
EP1491973A1 (en) * 2003-06-25 2004-12-29 The Swatch Group Management Services AG Clasp bracelet having electrical connection means
FI123401B (en) * 2011-06-10 2013-03-28 Suunto Oy Buckle for a band with a set of pieces
EP2644050B1 (en) * 2012-03-27 2016-05-25 Rolex S.A. Opening clasp for bracelet
EP2870893B1 (en) * 2013-11-07 2016-06-08 The Swatch Group Management Services AG Bracelet clasp
WO2016043307A1 (en) * 2014-09-19 2016-03-24 並木精密宝石株式会社 Buckle, wristwatch, and production method for buckle or wristwatch
CN105105430A (en) * 2015-08-07 2015-12-02 惠州Tcl移动通信有限公司 Wearable equipment and fastening assembly thereof
CH713613B1 (en) * 2017-03-23 2021-03-15 Bulgari Horlogerie Sa Folding clasp
DE102018006948B4 (en) * 2018-09-03 2022-04-21 Martin Schmidhofer COUPLING DEVICE AND FOLDING CLASP

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CH665101A5 (en) * 1986-03-20 1988-04-29 G Et F Chatelain S A Ultra-flat folding fastener for bracelet - is operated by buttons in recessed piece hinged to short part with engaging opening in long part
CH667979A5 (en) * 1986-10-08 1988-11-30 Georges Claude Adjustable fastener for bracelet - has curved central plate having groove in which arm of one part slides and locks in notches in groove
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FR2735335A1 (en) * 1995-06-15 1996-12-20 Smh Management Services Ag BRACELET CLASP WITH DEPLOYING LOOP

Also Published As

Publication number Publication date
DE69713713D1 (en) 2002-08-08
HK1013592A1 (en) 1999-09-03
CN1185302A (en) 1998-06-24
CN1145428C (en) 2004-04-14
JPH10146208A (en) 1998-06-02
US5857243A (en) 1999-01-12
DE69713713T2 (en) 2003-02-20
SG63765A1 (en) 1999-03-30
EP0843977B1 (en) 2002-07-03
JP4037495B2 (en) 2008-01-23
TW564699U (en) 2003-12-01

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