EP1374716B1 - Buckle for bracelet - Google Patents

Buckle for bracelet Download PDF

Info

Publication number
EP1374716B1
EP1374716B1 EP20020014410 EP02014410A EP1374716B1 EP 1374716 B1 EP1374716 B1 EP 1374716B1 EP 20020014410 EP20020014410 EP 20020014410 EP 02014410 A EP02014410 A EP 02014410A EP 1374716 B1 EP1374716 B1 EP 1374716B1
Authority
EP
European Patent Office
Prior art keywords
arms
push button
cam
portions
clasp
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.)
Expired - Lifetime
Application number
EP20020014410
Other languages
German (de)
French (fr)
Other versions
EP1374716A1 (en
Inventor
Michel Favre
Pascal Botteron
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.)
Cornu & Cie SA
Original Assignee
Cornu & Cie SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cornu & Cie SA filed Critical Cornu & Cie SA
Priority to EP20020014410 priority Critical patent/EP1374716B1/en
Publication of EP1374716A1 publication Critical patent/EP1374716A1/en
Application granted granted Critical
Publication of EP1374716B1 publication Critical patent/EP1374716B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

  • the present invention relates to clasps, of the type intended to connect, removably, the two ends of a bracelet, for example a wristwatch. It is more particularly a folding clasp, comprising two rigid arms, connected to one another in an articulated manner at one of their ends and a locking system. The arms can occupy an open position, allowing the wearer of the bracelet to remove or slide the bracelet on the wrist, and a closed position in which the two arms are secured to one another removably by means of the system. locking.
  • one of these clasps comprises a locking system in two parts each disposed on one of the two arms.
  • the upper arm has a stud having a lateral slot and a domed head, while the lower arm is traversed transversely by a generally parallelepipedal housing.
  • the wall of the housing in contact with the upper arm is pierced with a hole placed opposite the peak when the two arms are assembled.
  • a pusher also pierced with a hole, is mounted movably in the housing and held in place by a spring.
  • the hole is positioned substantially opposite the hole drilled in the lower arm. So, depending on the position of the pusher, the hole facing the pin, formed by the superposition of the holes formed in the pusher and in the housing, is sometimes a circle, sometimes a portion of a circle.
  • the peak when we want to close the clasp, simply superimpose the two arms, the peak, with its bulging head, coming into contact with the wall of the hole in the pusher through that made in the housing.
  • the support deviates the pusher by putting the spring in tension until the lateral slot of the peak is at the level of the pusher and that, when resuming its rest position, engages in the slot, thus making it impossible to open the clasp.
  • the locking member consists of a cam, pivotally mounted in the arm in which is mounted the pusher and having a cut defining a finger, on one of its sides, which serves as a guide to a rod and a spring interposed between the rod and the cam, forming said elastic member and applying the rod against the pusher.
  • the cam when the cam occupies its first position, the rod bears against one of the ends of the pusher, so that if pressure is exerted on the latter, it drives the rod, which arms the spring.
  • the pusher can thus be moved in its housing by a pressure at its free end.
  • the spring returns it to the rest position when the pressure is interrupted.
  • the cam occupies its second position, the finger bears against the pusher, the latter being thus blocked.
  • the cam comprises, on the opposite side to the pusher, an appendage protruding from the sides of the arm in which it is mounted, so as to form a lever that the user can actuate to tilt the cam from one to the other of its two positions.
  • the locking system is notched, the bearing surface of the rod against the pusher consists of a plurality of concave portions, the relief that separates them constituting this notch.
  • the first part comprises a peg and the second part a spring arranged to cooperate with the peg so as to lock the parts to one another when the arms are closed, and to fade when said peak is engaged therein.
  • the stud has a groove
  • the spring is a wire spring, whose diameter is slightly less than the width of the piton groove. The engagement of this spring in the groove ensures the locking of both parts.
  • a bracelet clasp comprising two upper rigid arms 10 and lower 12, connected to each other by hinge means 14 located at one of their ends. Each of their other end is provided with fastening means 16 to a bracelet.
  • the clasp comprises a locking system in two parts 18 and 20, respectively disposed on the lower arm 12 and upper arm 10, in the vicinity of the fastening means 16.
  • the lower arm 12 comprises a seat 21 and two branches 22 and has a U-shape.
  • the part 18 of the clasp is mounted at the seat 21.
  • the branches of the U 22 end with the hinge means 14 connecting the arms. 10 and 12 to each other.
  • the arm 10 consists of a single blade 24 whose width is slightly less than the width of the free space between the branches 22. This space makes it possible to receive the upper arm 10 when the two arms are brought together to close the clasp.
  • the arm 10 has, in its length, an elbow which defines a first portion 26 and a second flat portion 28 which comprises the portion 20 of the clasp. The curvature of the elbow is dimensioned so that, when the clasp is in the closed position, the profiles of the portion 26 and the arm 12 are merged while the portion 28 is superimposed on the seat 21 of the arm 12.
  • the lower arm 12 is traversed transversely by a generally parallelepipedic housing 30 ( figure 2b ), made in the seat 21, closed on one side by an insert 31 and provided with two protuberances 32 with concave contours, which form a narrowing 33 at one of its ends.
  • This housing 30 is intended to receive parts constituting part 18 of the locking system.
  • the pusher 34 is movably mounted in the housing 30 passing through the arm 12.
  • One end of the pusher 34 extends beyond one of the sides of the arm 12, so as to form a button 42 on which a user can press to actuate the pusher 34.
  • the cutout of its second end has four concave portions 44a, 44b, 44c, 44d disposed obliquely along the trajectory of the tilting of the cam 40, so as to allow the translation of the pusher and that it can occupy all positions, except for its second extreme position, without being in contact with the pusher 34.
  • the cam 40 is particularly illustrated on the figure 3 . It also takes place in the housing 30, in the extension of the pusher 34, the side of the protuberances 32. Next to the pusher 34, it has a cutout 46, so that it defines a finger 48 on one of the sides of the cut. The latter serves as a guide to a rod 50 mounted thereon.
  • the rod 50 integral with a spring 52, is supported on one or the other of the concave portions 44, which arms the spring 52 and allows the pusher 34 to automatically resume its initial position after being actuated.
  • the cam 40 On the opposite side to the pusher 34, the cam 40 has circular contours 54 and an appendix 56 protruding from the sides of the arm 12 through the constriction 33 formed in the thickness of the arm 12 by the protuberances 32, so as to constitute a lever that the user can actuate to tilt the cam 40.
  • the tilting of the cam 40 is guided by the support of its circular contours 54 on the concave contours of the protuberances 32, procured by the pressure of the spring 52.
  • the rod 50 is engaged in the concave portion 44b and the finger 48 is disposed facing the portion 44a, which is deep enough so that the pusher can be actuated without it abut against the cam 40.
  • the portion 44a and the finger 48 may have other shapes, adapted to each other so that, in the unlocked position of the cam, the finger does not prevent the displacement of the pusher 34.
  • the dimensions of the cam on the one hand, and particularly the length of the finger 48, and concave portions 44 of the pusher 34, on the other hand, are adjusted so that, in this position, the appendix 56 being in abutting against the other protrusion 32, the finger 48 is engaged in the concave portion 44c.
  • the rod 50 is then pressed on the portion 44d. Note that the relief between the portion 44c of the portion 44d is a notch of the locking system. The rod 50, thus passing from the portion 44c to the portion 44d, must overcome this notch. In this way, this position is guaranteed, unless voluntary action.
  • the two extreme positions of the cam 40 are defined by the abutment of the appendix 56 on the protuberances 32.
  • the rod 50 In the first of these positions, the rod 50 is engaged in the concave portion 44b the pusher 34 being unlocked.
  • the rod 50 In the second of these positions, the rod 50 is engaged in the concave portion 44d and the finger 48 in the concave portion 44c, the latter blocking the pusher 34.
  • the housing 64 of a length substantially equal to that of the opening 38, is superimposed thereon when the arms are closed. Its depth is sufficient to receive the peak 36.
  • the spring 66 has only one degree of freedom and that the movable end can only move outwardly of the arm 10.
  • the diameter of the spring 66 is slightly less than the width of the groove 62 of the peak 36.
  • the height between the bottom of the housing 64 and the spring 66 is substantially the same as that separating the groove 62 from the top of the head 60.
  • the opening of the clasp imposes to actuate the pusher 34, so as to laterally move the head 60 until the spring 66 is located next to the groove 62. Therefore, if we place the appendix 56 of the cam 40 in the second extreme position described above, the head 60 can no longer be moved and the clasp is locked. It is impossible to open the clasp.

Landscapes

  • Buckles (AREA)

Description

La présente invention se rapporte aux fermoirs, du type destiné à relier, de manière amovible, les deux extrémités d'un bracelet, par exemple d'un bracelet-montre. Il s'agit plus particulièrement d'un fermoir dépliant, comportant deux bras rigides, reliés l'un à l'autre de manière articulée à l'une de leurs extrémités et un système de verrouillage. Les bras peuvent occuper une position ouverte, permettant au porteur du bracelet d'enlever ou de glisser le bracelet au poignet, et une position fermée dans laquelle les deux bras sont rendus solidaires l'un de l'autre de manière amovible au moyen du système de verrouillage.The present invention relates to clasps, of the type intended to connect, removably, the two ends of a bracelet, for example a wristwatch. It is more particularly a folding clasp, comprising two rigid arms, connected to one another in an articulated manner at one of their ends and a locking system. The arms can occupy an open position, allowing the wearer of the bracelet to remove or slide the bracelet on the wrist, and a closed position in which the two arms are secured to one another removably by means of the system. locking.

Il existe actuellement sur le marché de nombreux bracelets munis de fermoirs du type comportant deux bras rigides reliés l'un à l'autre par des moyens d'articulation situés à l'une de leurs extrémités. Chacune de leur autre extrémité est dotée de moyens de fixation au bracelet.There are currently on the market many bracelets with clasps of the type comprising two rigid arms connected to one another by means of articulation located at one of their ends. Each of their other end is provided with fastening means to the bracelet.

Par exemple, l'un de ces fermoirs comporte un système de verrouillage en deux parties disposées chacune sur l'un des deux bras. Le bras supérieur est doté d'un piton présentant une fente latérale et une tête bombée, tandis que le bras inférieur est traversé transversalement par un logement globalement parallélépipédique. La paroi du logement au contact du bras supérieur est percée d'un trou placé en regard du piton lorsque les deux bras sont assemblés.For example, one of these clasps comprises a locking system in two parts each disposed on one of the two arms. The upper arm has a stud having a lateral slot and a domed head, while the lower arm is traversed transversely by a generally parallelepipedal housing. The wall of the housing in contact with the upper arm is pierced with a hole placed opposite the peak when the two arms are assembled.

Un poussoir, lui aussi percé d'un trou, est monté mobile dans le logement et maintenu en place par un ressort. Le trou est positionné sensiblement en regard du trou percé dans le bras inférieur. Donc, selon la position du poussoir, l'orifice en regard du piton, formé par la superposition des trous formés dans le poussoir et dans le logement, est tantôt un cercle, tantôt une portion de cercle.A pusher, also pierced with a hole, is mounted movably in the housing and held in place by a spring. The hole is positioned substantially opposite the hole drilled in the lower arm. So, depending on the position of the pusher, the hole facing the pin, formed by the superposition of the holes formed in the pusher and in the housing, is sometimes a circle, sometimes a portion of a circle.

Ainsi, lorsque l'on veut fermer le fermoir, il suffit de superposer les deux bras, le piton, par sa tête bombée, venant au contact de la paroi du trou ménagé dans le poussoir à travers celui ménagé dans le logement. L'appui fait s'écarter le poussoir en mettant le ressort en tension jusqu'à ce que la fente latérale du piton soit au niveau du poussoir et que celui-ci, en reprenant sa position de repos, s'engage dans la fente, rendant ainsi impossible l'ouverture du fermoir.Thus, when we want to close the clasp, simply superimpose the two arms, the peak, with its bulging head, coming into contact with the wall of the hole in the pusher through that made in the housing. The support deviates the pusher by putting the spring in tension until the lateral slot of the peak is at the level of the pusher and that, when resuming its rest position, engages in the slot, thus making it impossible to open the clasp.

Pour l'ouvrir à nouveau, il faut que l'utilisateur actionne le poussoir de manière à ce qu'il le dégage de la fente du piton et qu'il laisse parfaitement circulaire l'orifice présent en regard du piton.To open it again, it is necessary that the user actuates the pusher so that it releases it from the piton slot and it perfectly circular leaves the hole present opposite the piton.

Cette solution donne, de manière générale, entière satisfaction, toutefois, le poussoir peut être actionné de façon intempestive, ce qui peut provoquer l'ouverture du fermoir et, éventuellement, la perte du bracelet.This solution gives, in general, complete satisfaction, however, the pusher can be actuated inadvertently, which may cause the opening of the clasp and possibly the loss of the bracelet.

Le principe d'un tel poussoir est par example repris dans le document EP 0 913 106 A .The principle of such a pusher is for example included in the document EP 0 913 106 A .

La présente invention propose un fermoir pour bracelet permettant d'éviter des ouvertures intempestives. Il comprend, de manière connue, deux bras rigides, reliés l'un à l'autre de manière articulée à l'une de leurs extrémités et un système de verrouillage comprenant :

  • deux parties, chacune solidaire de l'un desdits bras, mobiles l'une en référence à l'autre et susceptibles d'occuper une première position, dans laquelle elles coopèrent pour maintenir les bras fermés, et une deuxième position dans laquelle elles sont libres l'une en référence à l'autre pour permettre l'ouverture des bras, et
  • un poussoir, monté mobile sur l'un des bras et agencé pour assurer le déplacement de l'une des parties en référence à l'autre, de manière à ce qu'elles passent de la première à la deuxième position, et
  • un organe élastique coopérant avec le poussoir est agencé de manière à ce que lesdites parties passent de la deuxième à la première position,
le système de verrouillage comportant, en outre, un organe de blocage susceptible d'occuper des première et deuxième positions permettant respectivement l'actionnement et le blocage du poussoir lorsque les bras sont maintenus fermés par les deux parties du système de verrouillage.The present invention provides a clasp for a bracelet to prevent untimely openings. It comprises, in known manner, two rigid arms, connected to one another in an articulated manner at one of their ends and a locking system comprising:
  • two parts, each secured to one of said arms, movable with respect to each other and capable of occupying a first position, in which they cooperate to keep the arms closed, and a second position in which they are free one with reference to the other to allow the opening of the arms, and
  • a pusher, movably mounted on one of the arms and arranged to move one of the parts with reference to the other, so that they move from the first to the second position, and
  • an elastic member cooperating with the pusher is arranged so that said parts pass from the second to the first position,
the locking system further comprising a locking member capable of occupying first and second positions allowing respectively actuating and blocking the pusher when the arms are kept closed by the two parts of the locking system.

Selon l'invention, l'organe de blocage est constitué d'une came, montée basculante dans le bras dans lequel est monté le poussoir et comportant une découpe définissant un doigt, sur l'un de ses côtés, qui sert de guide à une tige et à un ressort intercalé entre la tige et la came, formant ledit organe élastique et appliquant la tige contre le poussoir.According to the invention, the locking member consists of a cam, pivotally mounted in the arm in which is mounted the pusher and having a cut defining a finger, on one of its sides, which serves as a guide to a rod and a spring interposed between the rod and the cam, forming said elastic member and applying the rod against the pusher.

De façon avantageuse, lorsque la came occupe sa première position, la tige est en appui contre l'une des extrémités du poussoir, de telle sorte que si une pression est exercée sur ce dernier, il entraîne la tige, laquelle arme le ressort. Le poussoir peut donc être ainsi déplacé dans son logement par une pression à son extrémité libre. Le ressort le ramène en position de repos lorsque la pression est interrompue. Lorsque la came occupe sa deuxième position, le doigt est en appui contre le poussoir, ce dernier étant ainsi bloqué.Advantageously, when the cam occupies its first position, the rod bears against one of the ends of the pusher, so that if pressure is exerted on the latter, it drives the rod, which arms the spring. The pusher can thus be moved in its housing by a pressure at its free end. The spring returns it to the rest position when the pressure is interrupted. When the cam occupies its second position, the finger bears against the pusher, the latter being thus blocked.

La came comporte, du côté opposé au poussoir, un appendice dépassant des côtés du bras dans lequel elle est montée, de manière à former un levier que l'utilisateur peut actionner pour faire basculer la came de l'une à l'autre de ses deux positions.The cam comprises, on the opposite side to the pusher, an appendage protruding from the sides of the arm in which it is mounted, so as to form a lever that the user can actuate to tilt the cam from one to the other of its two positions.

Avantageusement, le système de verrouillage est à cran, la surface d'appui de la tige contre le poussoir est constituée d'une pluralité de portions concaves, le relief qui les sépare constituant ce cran.Advantageously, the locking system is notched, the bearing surface of the rod against the pusher consists of a plurality of concave portions, the relief that separates them constituting this notch.

Pour que le fermoir présente des conditions optimales de verrouillage, il est nécessaire que les deux parties du système de verrouillage soient bien accrochées l'une à l'autre. Par contre, pour le confort de l'utilisateur, il faut que la fermeture puisse se faire avec souplesse. Un autre but de la présente invention est de garantir à la fois une bonne rigidité en position fermée et une grande souplesse lors de l'opération de fermeture. A cet effet, dans le fermoir selon l'invention, la première partie comprend un piton et la deuxième partie un ressort agencé pour coopérer avec le piton de manière à verrouiller les parties l'une à l'autre lorsque les bras sont fermés, et pour s'effacer lorsque ledit piton y est engagé. Une telle structure permet, de plus, de fermer le fermoir, même lorsque l'organe de blocage bloque le poussoir.In order for the clasp to have optimal locking conditions, it is necessary for the two parts of the locking system to be hooked to one another. On the other hand, for the comfort of the user, the closure must be flexible. Another object of the present invention is to ensure both good rigidity in the closed position and great flexibility during the closing operation. For this purpose, in the clasp according to the invention, the first part comprises a peg and the second part a spring arranged to cooperate with the peg so as to lock the parts to one another when the arms are closed, and to fade when said peak is engaged therein. Such a structure allows, moreover, to close the clasp, even when the locking member blocks the pusher.

Avantageusement, le piton comporte une gorge, et le ressort est un ressort-fil, dont le diamètre est légèrement inférieur à la largeur de la gorge du piton. L'engagement de ce ressort dans la gorge assure le verrouillage des deux parties.Advantageously, the stud has a groove, and the spring is a wire spring, whose diameter is slightly less than the width of the piton groove. The engagement of this spring in the groove ensures the locking of both parts.

L'invention sera mieux comprise à la lecture de la description qui suit, faite en regard du dessin annexé sur lequel :

  • la figure 1 est une vue en perspective des deux bras assemblés, en position ouverte; et
  • la figure 2 montre une vue en coupe du système de verrouillage, respectivement en position déverrouillée en a et verrouillée en b; et
  • les figures 3 et 4 représentent des pièces constitutives du système de verrouillage.
The invention will be better understood on reading the description which follows, given with reference to the appended drawing in which:
  • the figure 1 is a perspective view of the two arms assembled, in open position; and
  • the figure 2 shows a sectional view of the locking system, respectively in the unlocked position at a and locked in b ; and
  • the Figures 3 and 4 represent constituent parts of the locking system.

Sur la figure 1, on a représenté un fermoir pour bracelet selon l'invention, comportant deux bras rigides supérieur 10 et inférieur 12, reliés l'un à l'autre par des moyens d'articulation 14 situés à l'une de leurs extrémités. Chacune de leur autre extrémité est dotée de moyens de fixation 16 à un bracelet.On the figure 1 , there is shown a bracelet clasp according to the invention, comprising two upper rigid arms 10 and lower 12, connected to each other by hinge means 14 located at one of their ends. Each of their other end is provided with fastening means 16 to a bracelet.

Le fermoir comporte un système de verrouillage en deux parties 18 et 20, disposées respectivement sur les bras inférieur 12 et supérieur 10, au voisinage des moyens de fixation 16.The clasp comprises a locking system in two parts 18 and 20, respectively disposed on the lower arm 12 and upper arm 10, in the vicinity of the fastening means 16.

Le bras inférieur 12 comporte une assise 21 et deux branches 22 et présente une forme de U. La partie 18 du fermoir est montée au niveau de l'assise 21 Les branches du U 22 se terminent par les moyens d'articulation 14 reliant les bras 10 et 12 l'un à l'autre.The lower arm 12 comprises a seat 21 and two branches 22 and has a U-shape. The part 18 of the clasp is mounted at the seat 21. The branches of the U 22 end with the hinge means 14 connecting the arms. 10 and 12 to each other.

Le bras 10 est constitué d'une seule lame 24 dont la largeur est légèrement inférieure à la largeur de l'espace libre séparant les branches 22. Cet espace permet de recevoir le bras supérieur 10 lorsque l'on rapproche les deux bras pour fermer le fermoir. Le bras 10 présente, dans sa longueur, un coude qui délimite une première partie 26 et une deuxième partie plate 28 qui comporte la partie 20 du fermoir. La courbure du coude est dimensionnée de manière à ce que, lorsque le fermoir est en position fermée, les profils de la partie 26 et du bras 12 soient confondus tandis que la partie 28 se superpose à l'assise 21 du bras 12.The arm 10 consists of a single blade 24 whose width is slightly less than the width of the free space between the branches 22. This space makes it possible to receive the upper arm 10 when the two arms are brought together to close the clasp. The arm 10 has, in its length, an elbow which defines a first portion 26 and a second flat portion 28 which comprises the portion 20 of the clasp. The curvature of the elbow is dimensioned so that, when the clasp is in the closed position, the profiles of the portion 26 and the arm 12 are merged while the portion 28 is superimposed on the seat 21 of the arm 12.

Le bras inférieur 12 est traversé transversalement par un logement 30 globalement parallélépipédique (figure 2b), pratiqué dans l'assise 21, fermé, sur une face, par une pièce rapportée 31 et muni de deux protubérances 32 dotées de contours concaves, qui forment un rétrécissement 33 à l'une de ses extrémités. Ce logement 30 est destiné à recevoir des pièces constitutives de la partie 18 du système de verrouillage.The lower arm 12 is traversed transversely by a generally parallelepipedic housing 30 ( figure 2b ), made in the seat 21, closed on one side by an insert 31 and provided with two protuberances 32 with concave contours, which form a narrowing 33 at one of its ends. This housing 30 is intended to receive parts constituting part 18 of the locking system.

La partie 18 comporte :

  • un poussoir 34 monté mobile en translation dans le logement 30, du côté opposé à celui comportant les protubérances 32,
  • un piton 36, rendu solidaire du poussoir 34 par exemple par soudage, dépassant du bras par une ouverture oblongue 38 de longueur définissant le débattement du poussoir et ménagée dans la paroi du logement 30, et destiné à coopérer avec la partie 20 du fermoir pour l'accrochage des deux parties 18 et 20, au moyen d'une tête 60 dont l'extrémité libre est bombée et d'une gorge 62 disposée sous la tête (figure 4), et
  • une came 40, montée basculante dans le logement 30 du côté de son extrémité rétrécie, pouvant notamment occuper une première position extrême dans laquelle elle laisse libre la translation du poussoir (figure 2a) et une deuxième position extrême dans laquelle toute translation est bloquée (figure 2b).
Part 18 includes:
  • a pusher 34 mounted to move in translation in the housing 30, on the opposite side to that comprising the protuberances 32,
  • a pin 36, secured to the pusher 34, for example by welding, protruding from the arm by an oblong opening 38 of length defining the deflection of the pusher and formed in the wall of the housing 30, and intended to cooperate with the part 20 of the clasp for the l hooking of the two parts 18 and 20, by means of a head 60 whose free end is curved and a groove 62 disposed under the head ( figure 4 ), and
  • a cam 40, pivotally mounted in the housing 30 on the side of its narrowed end, which can occupy a first extreme position in which it allows free movement of the pusher ( figure 2a ) and a second extreme position in which any translation is blocked ( figure 2b ).

Ces différentes pièces vont maintenant être décrites de manière plus précise en se référant à la figure 2a, illustrant la partie 18 du fermoir lorsque la came 40 occupe sa première position extrême.These different pieces will now be described in more detail by referring to the figure 2a , illustrating the part 18 of the clasp when the cam 40 occupies its first extreme position.

Le poussoir 34 est monté mobile dans le logement 30 traversant le bras 12. L'une des extrémités du poussoir 34 se prolonge au-delà d'un des côtés du bras 12, de manière à former un bouton 42 sur lequel un utilisateur peut appuyer pour actionner le poussoir 34. La découpe de sa deuxième extrémité présente quatre portions concaves 44a, 44b, 44c, 44d disposées de biais en suivant la trajectoire du basculement de la came 40, de manière à laisser libre la translation du poussoir et qu'elle puisse occuper toutes les positions, à l'exception de sa deuxième position extrême, sans être au contact du poussoir 34.The pusher 34 is movably mounted in the housing 30 passing through the arm 12. One end of the pusher 34 extends beyond one of the sides of the arm 12, so as to form a button 42 on which a user can press to actuate the pusher 34. The cutout of its second end has four concave portions 44a, 44b, 44c, 44d disposed obliquely along the trajectory of the tilting of the cam 40, so as to allow the translation of the pusher and that it can occupy all positions, except for its second extreme position, without being in contact with the pusher 34.

La came 40 est particulièrement illustrée sur la figure 3. Elle prend également place dans le logement 30, dans le prolongement du poussoir 34, du côté des protubérances 32. En regard du poussoir 34, elle présente une découpe 46, de sorte qu'elle définit un doigt 48 sur l'un des côtés de la découpe. Cette dernière sert de guide à une tige 50 qui y est montée mobile. La tige 50, solidaire d'un ressort 52, s'appuie sur l'une ou l'autre des portions concaves 44, ce qui arme le ressort 52 et permet au poussoir 34 de reprendre automatiquement sa position initiale après avoir été actionné.The cam 40 is particularly illustrated on the figure 3 . It also takes place in the housing 30, in the extension of the pusher 34, the side of the protuberances 32. Next to the pusher 34, it has a cutout 46, so that it defines a finger 48 on one of the sides of the cut. The latter serves as a guide to a rod 50 mounted thereon. The rod 50, integral with a spring 52, is supported on one or the other of the concave portions 44, which arms the spring 52 and allows the pusher 34 to automatically resume its initial position after being actuated.

Du côté opposé au poussoir 34, la came 40 présente des contours circulaires 54 et un appendice 56 dépassant des côtés du bras 12 à travers le rétrécissement 33 formé dans l'épaisseur du bras 12 par les protubérances 32, de manière à constituer un levier que l'utilisateur peut actionner pour faire basculer la came 40. Le basculement de la came 40 est guidé par l'appui de ses contours circulaires 54 sur les contours concaves des protubérances 32, procuré par la pression du ressort 52.On the opposite side to the pusher 34, the cam 40 has circular contours 54 and an appendix 56 protruding from the sides of the arm 12 through the constriction 33 formed in the thickness of the arm 12 by the protuberances 32, so as to constitute a lever that the user can actuate to tilt the cam 40. The tilting of the cam 40 is guided by the support of its circular contours 54 on the concave contours of the protuberances 32, procured by the pressure of the spring 52.

Particulièrement à la première position de la came, illustrée sur la figure 2a, dans laquelle l'appendice 56 est en butée contre l'une des protubérances 32, la tige 50 est engagée dans la portion concave 44b et le doigt 48 est disposé en regard de la portion 44a, qui est suffisamment profonde pour que le poussoir puisse être actionné sans qu'il vienne buter contre la came 40. On notera que la portion 44a et le doigt 48 peuvent avoir d'autres formes, adaptées l'une à l'autre de manière à ce que, en position déverrouillée de la came, le doigt n'empêche pas le déplacement du poussoir 34.Especially at the first position of the cam, illustrated on the figure 2a , in which the appendix 56 abuts against one of the protuberances 32, the rod 50 is engaged in the concave portion 44b and the finger 48 is disposed facing the portion 44a, which is deep enough so that the pusher can be actuated without it abut against the cam 40. Note that the portion 44a and the finger 48 may have other shapes, adapted to each other so that, in the unlocked position of the cam, the finger does not prevent the displacement of the pusher 34.

On se référera maintenant à la figure 2b illustrant la même partie 18 du fermoir, mais cette fois, lorsque la came 40 occupe sa deuxième position extrême, dans laquelle toute translation du poussoir 34 est empêchée.We will now refer to the figure 2b illustrating the same part 18 of the clasp, but this time, when the cam 40 occupies its second extreme position, in which any translation of the pusher 34 is prevented.

Les dimensions de la came d'une part, et particulièrement la longueur du doigt 48, et des portions concaves 44 du poussoir 34, d'autre part, sont ajustées de manière à ce que, dans cette position, l'appendice 56 étant en butée contre l'autre protubérance 32, le doigt 48 soit engagé dans la portion concave 44c. La tige 50 est alors appuyée sur la portion 44d. On notera que le relief qui sépare la portion 44c de la portion 44d constitue un cran du système de verrouillage. La tige 50, passant ainsi de la portion 44c à la portion 44d, doit vaincre ce cran. De la sorte, cette position est garantie, à moins d'une action volontaire.The dimensions of the cam on the one hand, and particularly the length of the finger 48, and concave portions 44 of the pusher 34, on the other hand, are adjusted so that, in this position, the appendix 56 being in abutting against the other protrusion 32, the finger 48 is engaged in the concave portion 44c. The rod 50 is then pressed on the portion 44d. Note that the relief between the portion 44c of the portion 44d is a notch of the locking system. The rod 50, thus passing from the portion 44c to the portion 44d, must overcome this notch. In this way, this position is guaranteed, unless voluntary action.

Ainsi, les deux positions extrêmes de la came 40 sont définies par la butée de l'appendice 56 sur les protubérances 32. Dans la première de ces positions, la tige 50 est engagée dans la portion concave 44b le poussoir 34 étant débloqué. Dans la deuxième de ces positions, la tige 50 est engagée dans la portion concave 44d et le doigt 48 dans la portion concave 44c, ce dernier bloquant le poussoir 34.Thus, the two extreme positions of the cam 40 are defined by the abutment of the appendix 56 on the protuberances 32. In the first of these positions, the rod 50 is engaged in the concave portion 44b the pusher 34 being unlocked. In the second of these positions, the rod 50 is engaged in the concave portion 44d and the finger 48 in the concave portion 44c, the latter blocking the pusher 34.

On va maintenant, en référence à la figure 1, décrire la partie 20 du fermoir disposée sur le bras supérieur 10. Elle comporte :

  • un logement 64 ménagé sur la face inférieure du bras 10, disposé latéralement et ouvert sur un côté,
  • une rainure 68 orientée longitudinalement sur le côté dans lequel le logement 64 est ouvert,
  • un trou 69 percé à l'extrémité de la rainure 68 opposée aux moyens de fixation 16, et
  • un ressort-fil 66, logé dans la rainure 68 bordant le logement 64 et fixé dans le trou 69, avantageusement par soudage.
We will now, with reference to the figure 1 , describe the part 20 of the clasp disposed on the upper arm 10. It comprises:
  • a housing 64 formed on the lower face of the arm 10, arranged laterally and open on one side,
  • a groove 68 oriented longitudinally on the side in which the housing 64 is open,
  • a hole 69 pierced at the end of the groove 68 opposite to the fastening means 16, and
  • a wire spring 66, housed in the groove 68 bordering the housing 64 and fixed in the hole 69, advantageously by welding.

Le logement 64, de longueur sensiblement égale à celle de l'ouverture 38, est superposé à celle-ci lorsque les bras sont fermés. Sa profondeur est suffisante pour recevoir le piton 36.The housing 64, of a length substantially equal to that of the opening 38, is superimposed thereon when the arms are closed. Its depth is sufficient to receive the peak 36.

Selon la disposition décrite ci-dessus, on comprend bien que le ressort 66 n'a qu'un degré de liberté et que l'extrémité mobile ne peut que s'écarter vers l'extérieur du bras 10.According to the arrangement described above, it is well understood that the spring 66 has only one degree of freedom and that the movable end can only move outwardly of the arm 10.

Le diamètre du ressort 66 est légèrement inférieur à la largeur de la gorge 62 du piton 36. De plus, la hauteur comprise entre le fond du logement 64 et le ressort 66 est sensiblement la même que celle séparant la gorge 62 du sommet de la tête 60.The diameter of the spring 66 is slightly less than the width of the groove 62 of the peak 36. In addition, the height between the bottom of the housing 64 and the spring 66 is substantially the same as that separating the groove 62 from the top of the head 60.

Ainsi, lorsque l'on veut fermer le fermoir, il suffit de superposer le bras 10 sur le bras 12. Quand le ressort 66 arrive au contact de la tête 60 contre sa partie bombée, l'appui le fait s'écarter pour permettre le passage de la tête 60, jusqu'à ce qu'elle se place dans le logement 64 et que le ressort 66 prenne position dans la gorge 62. La raideur du ressort 66 étant largement inférieure à celle du ressort 52, l'accouplement des parties 18 et 20 du fermoir se fait donc sans que le poussoir ne bouge. La position de la came 40 est donc indifférente pour la fermeture du fermoir.Thus, when one wants to close the clasp, simply superimpose the arm 10 on the arm 12. When the spring 66 comes into contact with the head 60 against its curved portion, the support moves it away to allow the passage of the head 60, until it is placed in the housing 64 and the spring 66 takes up position in the groove 62. The stiffness of the spring 66 being much lower than that of the spring 52, the coupling of the parts 18 and 20 of the clasp is done so that the pusher does not move. The position of the cam 40 is therefore indifferent for closing the clasp.

L'ouverture du fermoir impose d'actionner le poussoir 34, de manière à déplacer latéralement la tête 60 jusqu'à ce que le ressort 66 se trouve à côté de la gorge 62. Donc, si l'on place l'appendice 56 de la came 40 dans la deuxième position extrême décrite ci-dessus, la tête 60 ne peut plus être déplacée et le fermoir est verrouillé. Il est alors impossible d'ouvrir le fermoir.The opening of the clasp imposes to actuate the pusher 34, so as to laterally move the head 60 until the spring 66 is located next to the groove 62. Therefore, if we place the appendix 56 of the cam 40 in the second extreme position described above, the head 60 can no longer be moved and the clasp is locked. It is impossible to open the clasp.

Si l'on veut ouvrir le fermoir, il faut d'abord le déverrouiller en mettant l'appendice 56 dans la première position extrême décrite ci-dessus. Ensuite, une pression exercée sur le poussoir 34 permet de dégager la tête 60 du ressort 66. Rien ne s'oppose plus alors au déplacement relatif des bras 10 et 12 et donc, à l'ouverture du fermoir.If you want to open the clasp, you must first unlock it by putting the appendix 56 in the first extreme position described above. Then, a pressure exerted on the pusher 34 makes it possible to disengage the head 60 from the spring 66. Nothing then prevents the relative displacement of the arms 10 and 12 and therefore, when the clasp opens.

Ainsi est proposé un fermoir pour bracelet muni d'un système de verrouillage permettant d'éviter toute ouverture intempestive et garantissant à la fois une bonne rigidité en position fermée et une grande souplesse lors de l'opération de fermeture.Thus is proposed a bracelet clasp with a locking system to prevent inadvertent opening and ensuring both a good rigidity in the closed position and great flexibility during the closing operation.

L'exemple qui vient d'être décrit n'est qu'une application particulière du fermoir selon l'invention. Il peut, notamment, être simplement adapté à un fermoir à trois bras.The example which has just been described is only a particular application of the clasp according to the invention. It can, in particular, simply be adapted to a clasp with three arms.

Il est également possible de disposer le ressort 66 sur le poussoir 34 et monter le piton 36 sur le bras 10.It is also possible to arrange the spring 66 on the pusher 34 and mount the stud 36 on the arm 10.

Par ailleurs, les moyens mis en oeuvre pour assurer le blocage du poussoir peuvent, bien entendu, présenter des configurations très différentes, sans pour autant sortir du cadre de l'invention.Furthermore, the means used to ensure the blocking of the pusher can, of course, have very different configurations, without departing from the scope of the invention.

Claims (7)

  1. An unfolding bracelet clasp, comprising two rigid arms (10, 12) connected to each other in a hinged manner at one of their ends and a locking system comprising:
    - two portions (18, 20), each integral with one of said arms, mobile in relation to each other and able to occupy a first position, in which they cooperate in order to keep the arms closed, and a second position in which they are free in relation to each other in order to allow opening of the arms (10, 12),
    - a push button (34), mounted mobile on one of the arms and arranged in order to ensure the movement of one of the portions in reference to the other, such that they go from the first to the second position, and
    - an elastic member cooperating with the push button (34) is arranged such that said portions (18, 20) go from the second to the first position,
    said locking system also comprising a blocking member capable of occupying first and second positions allowing the actuation and blocking, respectively, of said push button (34) when the arms (10, 12) are kept closed by the two portions (18 and 20), characterized in that the blocking member is made up of a cam (40), mounted pivotably in the arm in which the push button is mounted, and comprising a cutout (46) defining a finger (48) on one of its sides which serves as a guide for a rod (50) and a spring (52) inserted between the rod (50) and the cam (40), forming said elastic member and applying said rod (50) against the push button (34).
  2. The clasp according to claim 1, characterized in that, in the second position of the cam (40), the finger (48) bears against the push button (34).
  3. The clasp according to one of claims 1 and 2, characterized in that the cam (40) comprises, on the side opposite the push button (34), a projection (56) extending from the sides of the arm in which it is mounted, so as to form a lever which the user can actuate in order to cause said cam (40) to pivot to one or the other of its two positions.
  4. The clasp according to one of claims 1 to 3, characterized in that the locking system is a notched system.
  5. The clasp according to claim 4, characterized in that the support surface of the push button (34) on the rod (50) is made up of a plurality of concave portions (44), the relief which separates them constituting said notch.
  6. The clasp according to claim 1, characterized in that the first portion (18) comprises an eye screw (36) and the second portion (20) comprises a spring (66) arranged in order to cooperate with said eye screw (36) so as to lock the portions to each other when the arms (10, 12) are closed, and to move aside when said eye screw (36) is engaged there.
  7. The clasp according to claim 6, characterized in that the eye screw (36) comprises a groove (62), in that the second spring (66) is a wire spring, the diameter of which is slightly smaller than the width of the groove (62) of the eye screw (36), and in that its engagement in said groove (62) ensures locking of the two portions (18, 20).
EP20020014410 2002-06-28 2002-06-28 Buckle for bracelet Expired - Lifetime EP1374716B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20020014410 EP1374716B1 (en) 2002-06-28 2002-06-28 Buckle for bracelet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20020014410 EP1374716B1 (en) 2002-06-28 2002-06-28 Buckle for bracelet

Publications (2)

Publication Number Publication Date
EP1374716A1 EP1374716A1 (en) 2004-01-02
EP1374716B1 true EP1374716B1 (en) 2009-10-14

Family

ID=29716859

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020014410 Expired - Lifetime EP1374716B1 (en) 2002-06-28 2002-06-28 Buckle for bracelet

Country Status (1)

Country Link
EP (1) EP1374716B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101966029A (en) * 2010-11-11 2011-02-09 赵威 Front-mounted multi-functional inner buckled pearl necklace jewelry lock catch

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102613782A (en) * 2012-03-05 2012-08-01 陈其宗 Watchband buckle
CN102613783A (en) * 2012-03-05 2012-08-01 陈其宗 Watchband buckle structure
EP2721943B1 (en) 2012-10-16 2015-08-12 Rolex Sa Resilient joint for clockwork assembly
CN107647538A (en) * 2017-11-17 2018-02-02 深圳市蓝丝腾科技有限公司 A kind of wearable intelligent bracelet easy to wear

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2902181C2 (en) * 1979-01-20 1983-06-01 Reinhold 7925 Dischingen Heckel Jewelry chain clasp
FR2634107B1 (en) * 1988-07-15 1990-11-02 Omega Sa FENDER ADJUSTABLE BRACELET CLASP
JP3939843B2 (en) * 1997-03-31 2007-07-04 シチズンホールディングス株式会社 Locking device for jewelry

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101966029A (en) * 2010-11-11 2011-02-09 赵威 Front-mounted multi-functional inner buckled pearl necklace jewelry lock catch

Also Published As

Publication number Publication date
EP1374716A1 (en) 2004-01-02

Similar Documents

Publication Publication Date Title
EP0350785B1 (en) Extensible, fine adjustable wrist-strap fastener
CA1331388C (en) Hinge type ski bindings for cross-country skiing
WO2006087615A1 (en) Device for fixing an interchangeable wrist-watch strap to a watch
FR2640516A1 (en) SAFETY FASTENING FOR SKI INTENDED TO MAINTAIN, IN A RELIABLE MANNER, THE FRONT OF A SKI-FITTED SHOE
EP0093458B1 (en) Closing device for a sports shoe
CH700230A2 (en) Deploying loop type clasp for closing wristwatch's strap, has locking body presenting stable open state in which button slides for end adjustment of effective length of strap, where body possesses state independent of state of locking unit
FR2755353A1 (en) Container e.g. for cosmetic products
EP0134595A1 (en) Ski boot
EP1654950A1 (en) Bracelet fastener
EP0659364B1 (en) Clasp frame
CH698981B1 (en) Bracelet clasp i.e. folding arm type clasp, length adjusting device for e.g. diving watch, has frame carrying control unit that is movable in transversal direction, acts on locking unit when control unit is activated, and displaces support
EP0768102A1 (en) Length adjustable skibinding groundplate
FR2459632A1 (en) ARTICULATION FOR CHAIR-LONG OR OTHER ARTICULATED SEAT
EP1374716B1 (en) Buckle for bracelet
WO2020121191A1 (en) Device for finely adjusting the length of a band and band comprising at least one device of this type
FR2705873A1 (en) Folding clasp type bracelet.
FR2738864A1 (en) Combination lock, e.g. for luggage with sliding clasp fasteners
CH695656A5 (en) Adjustable link for e.g. wrist-watch strap, has locking units with pushbutton placed near lower side of link, where pushbutton acts along direction perpendicular to plane of strap to control bolt cooperating with notches of one link unit
WO2020225654A1 (en) Clasp with folding buckle
EP0784251B1 (en) Device for connecting a band to a watch case
FR2626451A1 (en) Bracelet clasp
EP0158152B1 (en) Bracelet fastener with double security means
CH712039A2 (en) Clasp folding for bracelet.
WO2004086895A1 (en) Clasp for a watchstrap or bracelet
EP1304054B1 (en) Closure

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20040614

AKX Designation fees paid

Designated state(s): CH FR IT LI

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

17Q First examination report despatched

Effective date: 20070521

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH FR IT LI

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: GLN S.A.

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20100715

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091014

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20120625

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20120705

Year of fee payment: 11

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: NEW ADDRESS: AVENUE EDOUARD-DUBOIS 20, 2000 NEUCHATEL (CH)

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130630

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130701