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EP1304054A1 - Closure - Google Patents

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Publication number
EP1304054A1
EP1304054A1 EP01124914A EP01124914A EP1304054A1 EP 1304054 A1 EP1304054 A1 EP 1304054A1 EP 01124914 A EP01124914 A EP 01124914A EP 01124914 A EP01124914 A EP 01124914A EP 1304054 A1 EP1304054 A1 EP 1304054A1
Authority
EP
European Patent Office
Prior art keywords
clasp
pusher
stud
arms
crampon
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
EP01124914A
Other languages
German (de)
French (fr)
Other versions
EP1304054B1 (en
Inventor
Dieter Baekelandt
Pierre Dr. Buise
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.)
PROMOTION SpA
Original Assignee
PROMOTECH SA
Promotech Sa Manufacture De Bracelets
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8179009&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1304054(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by PROMOTECH SA, Promotech Sa Manufacture De Bracelets filed Critical PROMOTECH SA
Priority to DE60129331T priority Critical patent/DE60129331D1/en
Priority to EP01124914A priority patent/EP1304054B1/en
Priority to AT01124914T priority patent/ATE366527T1/en
Publication of EP1304054A1 publication Critical patent/EP1304054A1/en
Application granted granted Critical
Publication of EP1304054B1 publication Critical patent/EP1304054B1/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

Definitions

  • the present invention relates to clasps, of the type intended to connect, of removably, the two ends of a bracelet, for example of a wrist watch. It is more particularly a folding clasp, comprising two rigid arms, connected to each other in an articulated manner to one of their ends. The arms can occupy an open position, allowing the wearer of the bracelet to remove or slip the bracelet on the wrist, and a closed position in which the two arms are attached to each other from removably by means of a locking member.
  • a clasp of this type is, for example, described in document EP 0 115 740. It more precisely comprises a first arm forming a rigid support to side members and two other arms, each fixed pivotally, by one of its ends, at one end of the rigid support, and to the bracelet by its other end.
  • the two pivoting arms include two blades each adjacent to one of the side members of the support arm, arranged side by side and connected elastically to each other.
  • the blades and the side members are provided with faces side with complementary profiles, so that in closed position of the clasp, engagement of the profiles in each other ensures the locking of the articulated arms on the support arm.
  • the articulated arms are provided with pushers arranged in such a way that applying a force, the blades approach each other and the profiles of blades emerge from the side member profiles which allows the pivoting of the arms on their support.
  • the elastic connection between the two blades can be achieved either by means of coil springs interposed between them, either by a tuning fork structure. It is appeared that with the tuning fork structure, the stressed material aged, so that the catching force decreased.
  • the coil springs on the other hand, have greater stability, but, as the pushers do not are not aligned with the spring, the blades are subjected to bending, which give the whole a greater fragility.
  • the object of the present invention is to provide a safe, reliable and simple to manufacture operating clasp.
  • This clasp has two arms joined together, in an articulated manner, by one of their ends, each intended to be connected at least medially with one of the ends of the bracelet, the first arm comprising two longitudinal members and the second one blade inserted between the longitudinal members and together defining a longitudinal axis, and a locking member for removably attaching the arms to each other when the clasp is in the closed position.
  • connection of the pusher with the stud associated with it is important for ensure the rigidity of the assembly. This is why they are linked to each other by two rigid rods parallel to each other and crossing the spar which is attached to them adjacent.
  • a symmetrical structure allows to reinforce the locking, by the presence of two studs and two hooking members. If the clasp is also symmetrical along the axis transverse, it is then possible to turn it in one direction or the other without that the handling is modified, which simplifies the manufacture of the bracelet. This is why, in a particularly advantageous embodiment, the clasp has two sets formed by a pusher and a stud, each assembly being mounted on one of the side members.
  • the clasp has a third arm, also comprising a blade.
  • Each blade occupies half the length of the side members and is provided with a crampon.
  • the stud (s) are each provided with two attachment members cooperating respectively with a spike of one and the other blade.
  • Each of the blades is pivotally mounted on the side members by one end and is secured to the bracelet by the other.
  • the two studs slide on the bar connecting the side members.
  • the latter is in their part median with reference to the longitudinal axis.
  • the clasp shown in the drawing has three arms 10, 12 and 14, and a member lock 16.
  • the arm 10 comprises two longitudinal members 18 and 20, connected to each other by two cylindrical pins 22 and 24 at their ends, and by a bar 26 in their middle part. Pins 22 and 24 and bar 26 are engaged and fixed in holes made in the longitudinal members 18 and 20, advantageously by welding.
  • this clasp is advantageously made of steel stainless.
  • the arms 10, 12 and 14 are curved to match the shape of the wearer's wrist.
  • the longitudinal members 18 and 20 of the arm 10 are provided with blind holes, the function of which will be specified later, identified by the letter a , with axes parallel to the axis BB and opening on their lateral faces.
  • the arms 12 and 14 are arranged symmetrically with respect to the axis BB, between the side members 18 and 20 and thus each extend from one of the ends of the arm 10 as far as its middle part. They include a central blade identified by the letter a , two knuckles identified by the letters b and c and each arranged at one end of the blade a , and two studs identified by the letter d .
  • the knuckles 12b and 14b are arranged in the extension of their respective blades 12a and 14a and cooperate respectively with pins 22 and 24 to form pivot hinges parallel to axis B-B.
  • the chamerons 12c and 14c are interdependent of the other end of their respective blade 12a and 14a and protrude from the upper face of the clasp. They are intended to secure the clasp to the bracelet.
  • Studs 12d and 14d are formed pins extending respectively from the blades 12a and 14a in the direction of the bar 26 and comprising two functional surfaces, ie a curved surface 12th, embracing about a quarter of a circle facing the underside and towards the axis A-A, and a flat surface 12f facing the upper face (FIG. 3).
  • the locking member 16 is located in the middle part of the arm 10. It includes two identical sets arranged symmetrically with respect to axis A-A and each comprising a pusher 28 and a stud 30, placed on either side other side members 18 or 20.
  • the stud 30 is disposed between the side members 18 and 20.
  • Two pins 32, rigidly connecting one to the other the pusher 28 and the stud 30, are slidably engaged in holes made in the longitudinal members 18 or 20.
  • Each of the pushers 28 is provided with two cylindrical holes in each which is fixed a tube 34.
  • the latter extends from the pusher 28 and enters one of the holes 18a or 20a.
  • the tubes 34 serve as housing for a spring with sausage 36 (FIG. 2) one end of which bears against the pusher 28 and the other against the beam 18 or 20, thus tending to move the pusher away from the spar with which it is associated.
  • the studs 30, of generally parallelepiped shape are provided with a hole 30a axis coincides with axis B-B, in which the bar 26 is engaged and a locking member formed by two hooks 30b each disposed at one of the ends of the stud adjacent to the studs 12d and 14d.
  • Each hook has an inclined plane 30c, forming an angle of about 40 ° with the axis B-B, the planes inclined 30c of the two studs 30 intersecting beyond the upper face of the clasp, and a bearing surface 30d parallel to axes A-A and B-B and turned towards the lower face (figure 6).
  • the assemblies forming the locking member 16 are subjected to the force generated by the coil springs 36, so that the pushers 28 are kept away from the side members 18 or 20, while the pads 30 are supported against the latter.
  • the hooks 30b by their bearing surface 30d, cooperate with the studs 12d or 14d by their flat surface 12f or 14f, so that the arms 12 and 14 are attached to the arm 10.
  • Each of the two sets is arranged in such a way that it is possible to move along axis B-B, the studs 30 and with them the hooks 30b, moving away side members 18 and 20 when pressure is applied to the pushers 28.
  • the amplitude of the movement is sufficient so that, in the depressed position, pushers 28, the hooks 30b no longer cover the studs 12d and 14d, if although the arms 12 and 14 can then pivot freely on the pins 22 and 24, the clasp thus opening.
  • the clasp as described can be the subject of many variations, without as well go beyond the scope of the invention. It is more particularly possible to make the locking member with a single element. So the arms 12 and 14 will only include a spike, placed substantially in the middle of the space between the two beams 18 and 20. Such a solution allows to make a narrower bracelet, well suited to ladies' watches.

Landscapes

  • Adornments (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Slide Fasteners (AREA)
  • Clamps And Clips (AREA)

Abstract

The clasp consists of two articulated arms (10, 12) connected to the ends of the bracelet, the first having two lengthwise members (18, 20) and the second in the form of a plate (12a) between them, with a lock to hold them in the closed position. The lock is in the form of pushers (28) with studs (30) able to slide transversely relative to the ends of the lengthwise members. The studs are located between the lengthwise members and are equipped with fasteners (30b) engaging with projections (12d) on the plate.

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. 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 attachés l'un à l'autre de manière amovible au moyen d'un organe de verrouillage.The present invention relates to clasps, of the type intended to connect, of removably, the two ends of a bracelet, for example of a wrist watch. It is more particularly a folding clasp, comprising two rigid arms, connected to each other in an articulated manner to one of their ends. The arms can occupy an open position, allowing the wearer of the bracelet to remove or slip the bracelet on the wrist, and a closed position in which the two arms are attached to each other from removably by means of a locking member.

Un fermoir de ce type est, par exemple, décrit dans le document EP 0 115 740. Il comporte plus précisément un premier bras formant un support rigide à longerons et deux autres bras, chacun fixé pivotant, par l'une de ses extrémités, à l'une des extrémités du support rigide, et au bracelet par son autre extrémité. Les deux bras pivotants comportent deux lames chacune adjacente à l'un des longerons du bras formant support, disposées côte à côte et reliées élastiquement l'une à l'autre. Les lames et les longerons sont munis de faces latérales présentant des profils complémentaires, de manière à ce qu'en position fermée du fermoir, l'engagement des profils les uns dans les autres assure le verrouillage des bras articulés sur le bras formant support.A clasp of this type is, for example, described in document EP 0 115 740. It more precisely comprises a first arm forming a rigid support to side members and two other arms, each fixed pivotally, by one of its ends, at one end of the rigid support, and to the bracelet by its other end. The two pivoting arms include two blades each adjacent to one of the side members of the support arm, arranged side by side and connected elastically to each other. The blades and the side members are provided with faces side with complementary profiles, so that in closed position of the clasp, engagement of the profiles in each other ensures the locking of the articulated arms on the support arm.

Les bras articulés sont munis de poussoirs agencés de manière à ce qu'en y appliquant une force, les lames se rapprochent l'une de l'autre et les profils des lames se dégagent des profils des longerons ce qui permet le pivotement des bras sur leur support.The articulated arms are provided with pushers arranged in such a way that applying a force, the blades approach each other and the profiles of blades emerge from the side member profiles which allows the pivoting of the arms on their support.

La liaison élastique entre les deux lames peut être réalisée soit au moyen de ressorts à boudin intercalés entre elles, soit par une structure en diapason. Il est apparu qu'avec la structure en diapason, la matière sollicitée vieillissait, de telle sorte que la force d'accrochage diminuait. Les ressorts à boudin présentent, par contre, une plus grande stabilité, mais, comme les poussoirs ne sont pas alignés avec le ressort, les lames sont soumises à une flexion, ce qui confèrent à l'ensemble une plus grande fragilité.The elastic connection between the two blades can be achieved either by means of coil springs interposed between them, either by a tuning fork structure. It is appeared that with the tuning fork structure, the stressed material aged, so that the catching force decreased. The coil springs on the other hand, have greater stability, but, as the pushers do not are not aligned with the spring, the blades are subjected to bending, which give the whole a greater fragility.

La présente invention a pour but de réaliser un fermoir de fonctionnement sûr, fiable et de fabrication simple. Ce fermoir comporte
deux bras assemblés l'un à l'autre, de manière articulée, par l'une de leurs extrémités, chacun destiné à être relié au moins médiatement avec l'une des extrémités du bracelet, le premier bras comportant deux longerons et le deuxième une lame intercalée entre les longerons et définissant ensemble un axe longitudinal, et
un organe de verrouillage pour attacher de manière amovible les bras l'un à l'autre lorsque le fermoir est en position fermée.The object of the present invention is to provide a safe, reliable and simple to manufacture operating clasp. This clasp has
two arms joined together, in an articulated manner, by one of their ends, each intended to be connected at least medially with one of the ends of the bracelet, the first arm comprising two longitudinal members and the second one blade inserted between the longitudinal members and together defining a longitudinal axis, and
a locking member for removably attaching the arms to each other when the clasp is in the closed position.

Le but défini plus haut est atteint grâce au fait que l'organe de verrouillage comporte :

  • un poussoir et un plot fixés l'un à l'autre, disposés de part et d'autre et montés coulissant sur un longeron, selon un axe transversal perpendiculaire à l'axe longitudinal, le plot étant disposé entre les deux longerons et muni d'un organe d'accrochage,
  • un organe élastique interposé entre le poussoir et le longeron sur lequel il est monté, pour les écarter l'un de l'autre,
  • un crampon solidaire de la lame et placé de manière à ce qu'en position fermée du fermoir, il est verrouillé par l'organe d'accrochage lorsque le poussoir se trouve en position de repos, éloignée du longeron, et dégagé de cet organe lorsque le poussoir se trouve en position poussée, voisine du longeron.
    • The aim defined above is achieved thanks to the fact that the locking member comprises:
  • a pusher and a stud fixed to each other, arranged on either side and mounted to slide on a spar, along a transverse axis perpendicular to the longitudinal axis, the stud being disposed between the two spars and provided with '' a fastening member,
  • an elastic member interposed between the pusher and the spar on which it is mounted, in order to separate them from one another,
  • a crampon secured to the blade and placed so that in the closed position of the clasp, it is locked by the latching member when the pusher is in the rest position, away from the side member, and released from this member when the pusher is in the pushed position, close to the side member.

    • Une caractéristique importante des fermoirs concerne les conditions dans lesquelles ils peuvent être fermés. Il est nécessaire que la pression à exercer soit régulière, même après un grand nombre de manipulations. Des résultats particulièrement bons ont été obtenus avec un fermoir dans lequel l'organe d'accrochage et le crampon comportent des premières surfaces de travail, en contact l'une avec l'autre lorsqu'une pression est appliquée sur les bras pour fermer le fermoir, tangentes l'une de l'autre. La tangente au lieu de contact forme un angle aigu avec l'axe transversal, de manière à ce que la pression exercée par le crampon sur l'organe d'accrochage tend à écarter le plot du longeron auquel il est adjacent, jusqu'à permettre à l'organe d'accrochage de passer au-delà du crampon.An important feature of the clasps concerns the conditions in which they can be closed. It is necessary that the pressure to be exerted is regular, even after a large number of manipulations. Results particularly good have been obtained with a clasp in which the organ hooking and the crampon have first work surfaces, in contact with each other when pressure is applied to the arms to close the clasp, tangent to each other. The tangent to the place of contact forms an acute angle with the transverse axis, so that the pressure exerted by the crampon on the attachment member tends to move the stud away from the spar to which it is adjacent, until allowing the fastening member to go past the crampon.

    Afin d'assurer un blocage de l'organe d'accrochage par le crampon, ceux-ci comportent chacun une seconde surface de travail parallèle aux axes longitudinal et transversal et coopérant l'une avec l'autre lorsque le fermoir est en position fermée.In order to ensure that the latching member is blocked by the crampon, these each have a second work surface parallel to the axes longitudinal and transverse and cooperating with each other when the clasp is in closed position.

    La liaison du poussoir avec le plot qui lui est associé est importante pour assurer la rigidité de l'ensemble. C'est pourquoi ils sont reliés l'un à l'autre par deux tiges rigides parallèles entre elles et traversant le longeron qui leur est adjacent.The connection of the pusher with the stud associated with it is important for ensure the rigidity of the assembly. This is why they are linked to each other by two rigid rods parallel to each other and crossing the spar which is attached to them adjacent.

    Il est possible de garantir un guidage particulièrement bon du plot, et ainsi éviter toute distorsion, lorsque les longerons sont reliés l'un à l'autre par un barreau sur lequel le plot est monté coulissant.It is possible to guarantee particularly good guidance of the stud, and thus avoid distortion, when the side members are connected to each other by a bar on which the stud is slidably mounted.

    La manipulation des poussoirs dépend fortement de la constance de l'organe élastique. De bons résultats ont été obtenus avec un organe élastique comprenant un ressort à boudin, intercalé entre le poussoir et le longeron, et un tube entourant le ressort et engagé dans des trous que comportent le poussoir et le longeron, ce tube étant fixé dans l'un et pouvant coulisser librement dans l'autre. Les ressorts à boudin permettent de travailler avec une grande amplitude sans risque de dépasser la limite élastique. Ils sont protégés par les tubes et ne risquent en conséquence pas d'être abímés au porter.The handling of the pushers strongly depends on the constancy of the organ elastic. Good results have been obtained with an elastic organ comprising a coil spring, interposed between the pusher and the beam, and a tube surrounding the spring and engaged in holes in the pusher and the side member, this tube being fixed in one and being able to slide freely in the other. The coil springs allow working with a large amplitude without risk of exceeding the elastic limit. They are protected by tubes and therefore do not risk being damaged during wear.

    Pour un tel fermoir, une structure symétrique, en référence à l'axe longitudinal, permet de renforcer le verrouillage, par la présence de deux plots et deux organes d'accrochage. Si le fermoir est aussi symétrique selon l'axe transversal, il est alors possible de le tourner dans un sens ou dans l'autre sans que la manipulation en soit modifiée, ce qui simplifie la fabrication du bracelet. C'est pourquoi, dans un mode de réalisation particulièrement avantageux, le fermoir comporte deux ensembles formés d'un poussoir et d'un plot, chaque ensemble étant monté sur l'un des longerons.For such a clasp, a symmetrical structure, with reference to the longitudinal axis, allows to reinforce the locking, by the presence of two studs and two hooking members. If the clasp is also symmetrical along the axis transverse, it is then possible to turn it in one direction or the other without that the handling is modified, which simplifies the manufacture of the bracelet. This is why, in a particularly advantageous embodiment, the clasp has two sets formed by a pusher and a stud, each assembly being mounted on one of the side members.

    Dans un autre mode, qui peut être combiné avec celui mentionné ci-dessus, le fermoir comporte un troisième bras, comprenant également une lame. Chaque lame occupe une moitié de la longueur des longerons et est munie d'un crampon. Le ou les plots sont munis chacun de deux organes d'accrochage coopérant respectivement avec un crampon de l'une et de l'autre lame. Chacune des lames est montée pivotante sur les longerons par une extrémité et est solidaire du bracelet par l'autre.In another mode, which can be combined with that mentioned above, the clasp has a third arm, also comprising a blade. Each blade occupies half the length of the side members and is provided with a crampon. The stud (s) are each provided with two attachment members cooperating respectively with a spike of one and the other blade. Each of the blades is pivotally mounted on the side members by one end and is secured to the bracelet by the other.

    Lorsque ces deux modes de réalisation sont combinés, les deux plots coulissent sur le barreau qui relie les longerons. Ce dernier se trouve dans leur partie médiane en référence à l'axe longitudinal.When these two embodiments are combined, the two studs slide on the bar connecting the side members. The latter is in their part median with reference to the longitudinal axis.

    D'autres avantages et caractéristiques de l'invention ressortiront de la description qui va suivre, faite en regard du dessin annexé, dans lequel :

  • les figures 1 et 2 montrent, vu respectivement de côté et de dessous, un fermoir selon l'invention,
  • les figures 3 à 5 représentent, vu de dessus, en perspective et coupé, ce même fermoir, respectivement en position ouverte, en cours de fermeture et fermé, et
  • la figure 6 se rapporte au fermoir également vu en perspective et coupé, en position fermée, mais vu de dessous.
    • Other advantages and characteristics of the invention will emerge from the description which follows, given with reference to the appended drawing, in which:
  • FIGS. 1 and 2 show, seen respectively from the side and from below, a clasp according to the invention,
  • FIGS. 3 to 5 represent, seen from above, in perspective and cut, this same clasp, respectively in the open position, during closing and closed, and
  • Figure 6 relates to the clasp also seen in perspective and cut, in the closed position, but seen from below.

    • Le fermoir représenté au dessin comporte trois bras 10, 12 et 14, et un organe de verrouillage 16. The clasp shown in the drawing has three arms 10, 12 and 14, and a member lock 16.

    Le bras 10 comporte deux longerons 18 et 20, reliés l'un à l'autre par deux goupilles cylindriques 22 et 24 à leurs extrémités, et par un barreau 26 dans leur partie médiane. Les goupilles 22 et 24 et le barreau 26 sont engagés et fixés dans des trous pratiqués dans les longerons 18 et 20, avantageusement par soudage.The arm 10 comprises two longitudinal members 18 and 20, connected to each other by two cylindrical pins 22 and 24 at their ends, and by a bar 26 in their middle part. Pins 22 and 24 and bar 26 are engaged and fixed in holes made in the longitudinal members 18 and 20, advantageously by welding.

    Les pièces constitutives de ce fermoir sont avantageusement réalisées en acier inoxydable. Ainsi qu'on peut le voir sur la figure 1, les bras 10, 12 et 14 sont incurvés pour épouser la forme du poignet du porteur.The constituent parts of this clasp are advantageously made of steel stainless. As can be seen in Figure 1, the arms 10, 12 and 14 are curved to match the shape of the wearer's wrist.

    Pour faciliter la description, il sera fait référence à un axe A-A, longitudinal, parallèle aux longerons 18 et 20 et qui est placé à mi-distance entre eux, et à un axe transversal B-B, confondu avec l'axe du barreau 26. On appellera « inférieures » les parties du fermoir destinées à être orientées vers le poignet du porteur, « supérieures » les parties opposées, et « latérales » les faces extérieures orientées selon l'axe A-A et perpendiculaires à l'axe B-B.To facilitate the description, reference will be made to a longitudinal axis A-A, parallel to the longitudinal members 18 and 20 and which is placed halfway between them, and at a transverse axis B-B, coincident with the axis of the bar 26. We will call "Lower" parts of the clasp intended to be oriented towards the wrist of the wearer, "upper" the opposite parts, and "lateral" the faces external oriented along the axis A-A and perpendicular to the axis B-B.

    Les longerons 18 et 20 du bras 10 sont munis de trous borgnes dont la fonction sera précisée plus loin, identifiés par la lettre a, d'axes parallèles à l'axe B-B et s'ouvrant sur leurs faces latérales.The longitudinal members 18 and 20 of the arm 10 are provided with blind holes, the function of which will be specified later, identified by the letter a , with axes parallel to the axis BB and opening on their lateral faces.

    Les bras 12 et 14 sont disposés symétriquement par rapport à l'axe B-B, entre les longerons 18 et 20 et s'étendent ainsi chacun de l'une des extrémités du bras 10 jusque dans sa partie médiane. Ils comportent une lame centrale identifiée par la lettre a, deux charnerons identifiés par les lettres b et c et disposés chacun à l'une des extrémités de la lame a, et deux crampons identifiés par la lettre d.The arms 12 and 14 are arranged symmetrically with respect to the axis BB, between the side members 18 and 20 and thus each extend from one of the ends of the arm 10 as far as its middle part. They include a central blade identified by the letter a , two knuckles identified by the letters b and c and each arranged at one end of the blade a , and two studs identified by the letter d .

    Plus précisément, Les charnerons 12b et 14b sont disposés dans le prolongement de leur lame respective 12a et 14a et coopèrent respectivement avec les goupilles 22 et 24 pour former des charnières d'axe de pivotement parallèle à l'axe B-B. Les chamerons 12c et 14c sont solidaires de l'autre extrémité de leur lame respective 12a et 14a et font saillie sur la face supérieure du fermoir. Ils sont destinés à assurer la fixation du fermoir au bracelet.More specifically, the knuckles 12b and 14b are arranged in the extension of their respective blades 12a and 14a and cooperate respectively with pins 22 and 24 to form pivot hinges parallel to axis B-B. The chamerons 12c and 14c are interdependent of the other end of their respective blade 12a and 14a and protrude from the upper face of the clasp. They are intended to secure the clasp to the bracelet.

    Les crampons 12d et 14d, dont la fonction sera précisée plus loin, sont formés de tétons s'étendant respectivement des lames 12a et 14a en direction du barreau 26 et comportant deux surfaces fonctionnelles, soit une surface bombée 12e, embrassant environ un quart de cercle tourné vers la face inférieure et vers l'axe A-A, et une surface plane 12f tournée vers la face supérieure (figure 3).Studs 12d and 14d, the function of which will be specified below, are formed pins extending respectively from the blades 12a and 14a in the direction of the bar 26 and comprising two functional surfaces, ie a curved surface 12th, embracing about a quarter of a circle facing the underside and towards the axis A-A, and a flat surface 12f facing the upper face (FIG. 3).

    L'organe de verrouillage 16 se trouve dans la partie médiane du bras 10. Il comprend deux ensembles identiques disposés symétriquement par rapport à l'axe A-A et comportant chacun un poussoir 28 et un plot 30, placés de part et d'autre des longerons 18 ou 20. Le plot 30 est disposé entre les longerons 18 et 20. Deux goupilles 32, reliant rigidement l'un à l'autre le poussoir 28 et le plot 30, sont engagées coulissantes dans des trous pratiqués dans les longerons 18 ou 20.The locking member 16 is located in the middle part of the arm 10. It includes two identical sets arranged symmetrically with respect to axis A-A and each comprising a pusher 28 and a stud 30, placed on either side other side members 18 or 20. The stud 30 is disposed between the side members 18 and 20. Two pins 32, rigidly connecting one to the other the pusher 28 and the stud 30, are slidably engaged in holes made in the longitudinal members 18 or 20.

    Chacun des poussoirs 28 est muni de deux trous cylindriques dans chacun desquels est fixé un tube 34. Ce dernier s'étend du poussoir 28 et pénètre dans l'un des trous 18a ou 20a. Les tubes 34 servent de logement à un ressort à boudin 36 (figure 2) dont une extrémité est en appui contre le poussoir 28 et l'autre contre le longeron 18 ou 20, tendant ainsi à éloigner le poussoir du longeron auquel il est associé.Each of the pushers 28 is provided with two cylindrical holes in each which is fixed a tube 34. The latter extends from the pusher 28 and enters one of the holes 18a or 20a. The tubes 34 serve as housing for a spring with sausage 36 (FIG. 2) one end of which bears against the pusher 28 and the other against the beam 18 or 20, thus tending to move the pusher away from the spar with which it is associated.

    Les plots 30, de forme générale parallélépipédique, sont munis d'un trou 30a d'axe confondu avec l'axe B-B, dans lequel le barreau 26 est engagé et d'un organe de verrouillage formé de deux crochets 30b disposés chacun à l'une des extrémités du plot voisine des crampons 12d et 14d. Chaque crochet comporte un plan incliné 30c, formant un angle d'environ 40° avec l'axe B-B, les plans inclinés 30c des deux plots 30 se coupant au-delà de la face supérieure du fermoir, et une surface d'appui 30d parallèle aux axes A-A et B-B et tournée vers la face inférieure (figure 6). De la sorte, le plan incliné 30c d'un crochet 30b et la surface bombée 12e ou 14e d'un crampon 12d ou 14d sont tangents l'un à l'autre, la tangente formant un angle aigu avec l'axe transversal B-B. Il en résulte qu'une pression exercée sur l'un des bras 12 ou 14 et ainsi sur les crampons 12d et 14d, tend à appuyer sur les crochets 30b et écarter ainsi chacun des plots 30 du longeron auquel il est adjacent, jusqu'à permettre aux crochets 30b de passer au-delà du crampon 12d ou 14d qui lui est associé.The studs 30, of generally parallelepiped shape, are provided with a hole 30a axis coincides with axis B-B, in which the bar 26 is engaged and a locking member formed by two hooks 30b each disposed at one of the ends of the stud adjacent to the studs 12d and 14d. Each hook has an inclined plane 30c, forming an angle of about 40 ° with the axis B-B, the planes inclined 30c of the two studs 30 intersecting beyond the upper face of the clasp, and a bearing surface 30d parallel to axes A-A and B-B and turned towards the lower face (figure 6). In this way, the inclined plane 30c of a hook 30b and the curved surface 12e or 14e of a cleat 12d or 14d are tangent to each other, the tangent forming an acute angle with the transverse axis B-B. he as a result, a pressure exerted on one of the arms 12 or 14 and thus on the cleats 12d and 14d, tends to press the hooks 30b and thus spread each of the studs 30 of the spar to which it is adjacent, until allowing the hooks 30b to pass beyond the stud 12d or 14d associated therewith.

    En position de repos, les ensembles formant l'organe de verrouillage 16 sont soumis à la force engendrée par les ressorts à boudin 36, de telle sorte que les poussoirs 28 sont maintenus éloignés des longerons 18 ou 20, alors que les plots 30 sont en appui contre ces derniers. Dans cette position les crochets 30b, par leur surface d'appui 30d, coopèrent avec les crampons 12d ou 14d par leur surface plane 12f ou 14f, de telle sorte que les bras 12 et 14 sont attachés au bras 10.In the rest position, the assemblies forming the locking member 16 are subjected to the force generated by the coil springs 36, so that the pushers 28 are kept away from the side members 18 or 20, while the pads 30 are supported against the latter. In this position the hooks 30b, by their bearing surface 30d, cooperate with the studs 12d or 14d by their flat surface 12f or 14f, so that the arms 12 and 14 are attached to the arm 10.

    Chacun des deux ensembles est agencé de manière à ce qu'il soit possible de le déplacer selon l'axe B-B, les plots 30 et avec eux les crochets 30b, s'éloignant des longerons 18 et 20 lorsqu'une pression est appliquée sur les poussoirs 28. L'amplitude du mouvement est suffisante pour que, en position enfoncée des poussoirs 28, les crochets 30b ne recouvrent plus les crampons 12d et 14d, si bien que les bras 12 et 14 peuvent alors pivoter librement sur les goupilles 22 et 24, le fermoir s'ouvrant ainsi.Each of the two sets is arranged in such a way that it is possible to move along axis B-B, the studs 30 and with them the hooks 30b, moving away side members 18 and 20 when pressure is applied to the pushers 28. The amplitude of the movement is sufficient so that, in the depressed position, pushers 28, the hooks 30b no longer cover the studs 12d and 14d, if although the arms 12 and 14 can then pivot freely on the pins 22 and 24, the clasp thus opening.

    Pour refermer le fermoir, il suffit de rabattre les bras 12 et 14 et d'appliquer une force sensiblement perpendiculaire aux axes A-A et B-B. Les crampons 12d et 14d viennent alors prendre appui par leur surface bombée 12e ou 14e contre les plans inclinés 30c des crochets 30b. La force appliquée déplace les plots pour les rapprocher l'un de l'autre et libère l'espace permettant aux crampons 12d et 14d de passer au-delà des crochets 30b et venir ainsi verrouiller les bras 12 et 14. To close the clasp, simply fold the arms 12 and 14 and apply a force substantially perpendicular to the axes A-A and B-B. The crampons 12d and 14d then come to bear by their curved surface 12th or 14th against the inclined planes 30c of the hooks 30b. The applied force moves the studs to bring them closer to each other and frees up space allowing cleats 12d and 14d to pass beyond the hooks 30b and come as well lock arms 12 and 14.

    Il est possible d'ajuster la force nécessaire à l'ouverture et à la fermeture du poussoir, en jouant sur la raideur des ressorts à boudin 36 et sur l'angle des plans inclinés 30c que comportent les crochets 30b.It is possible to adjust the force required to open and close the pusher, by playing on the stiffness of the coil springs 36 and on the angle of the inclined planes 30c that include the hooks 30b.

    Des essais de vieillissement ont été effectués avec des fermoirs tels que décrits. Après 10'000 fonctions d'ouverture et de fermeture, les forces nécessaires pour assurer l'ouverture et la fermeture du fermoir n'avaient pratiquement pas varié. Plus précisément, la force nécessaire à la fermeture est restée dans une limite comprise entre 10 et 20 N, la force d'ouverture entre 5 et 10 NAging tests have been carried out with clasps as described. After 10,000 opening and closing functions, the forces necessary to ensuring the opening and closing of the clasp had hardly changed. More specifically, the force required to close remained within a limit between 10 and 20 N, the opening force between 5 and 10 N

    Le fermoir tel que décrit peut faire l'objet de nombreuses variantes, sans pour autant sortir du cadre de l'invention. Il est plus particulièrement possible de réaliser l'organe de verrouillage avec un seul élément. De la sorte, les bras 12 et 14 ne comprendrons qu'un crampon, disposé sensiblement au milieu de l'espace compris entre les deux longerons 18 et 20. Une telle solution permet de réaliser un bracelet plus étroit, bien adaptée aux montres pour dames.The clasp as described can be the subject of many variations, without as well go beyond the scope of the invention. It is more particularly possible to make the locking member with a single element. So the arms 12 and 14 will only include a spike, placed substantially in the middle of the space between the two beams 18 and 20. Such a solution allows to make a narrower bracelet, well suited to ladies' watches.

    Il est également possible de ne disposer que de deux bras, l'un formé de deux longerons, similaire au bras 10, et l'autre similaire à l'un des bras 12 ou 14, également disposé entre les longerons 18 et 20, y étant monté pivotant par l'une de ses extrémités, mais s'étendant sur presque toute leur longueur. Dans ce fermoir, l'organe de verrouillage est monté sur l'un et/ou l'autre des longerons, à l'extrémité opposée à celle formant charnière. Dans ce cas, le bracelet est fixé aux extrémités libres des deux bras.It is also possible to have only two arms, one formed by two longitudinal members, similar to the arm 10, and the other similar to one of the arms 12 or 14, also arranged between the side members 18 and 20, being pivotally mounted thereon by one of its ends, but extending over almost their entire length. In this clasp, the locking member is mounted on one and / or the other of the side members, at the end opposite to that forming a hinge. In this case, the bracelet is attached to the free ends of the two arms.

    Claims (9)

    Fermoir pour bracelet comportant deux bras (10, 12) assemblés l'un à l'autre de manière articulée par l'une de leurs extrémités, chacun destiné à être relié au moins médiatement avec l'une des extrémités du bracelet, le premier bras (10) comportant deux longerons (18, 20) et le deuxième (12) une lame (12a) intercalée entre les longerons (18, 20) et définissant ensemble un axe longitudinale (A-A), et un organe de verrouillage (16) pour attacher de manière amovible les bras (10, 12) l'un à l'autre lorsque le fermoir est en position fermée, caractérisé en ce que l'organe de verrouillage (16) comporte un poussoir (28) et un plot (30) fixés l'un à l'autre, disposés de part et d'autre et montés coulissant sur un longeron (18 ou 20), selon un axe transversal (B-B) perpendiculaire à l'axe longitudinal (A-A), ledit plot (30) étant disposé entre les deux longerons (18, 20) et muni d'un organe d'accrochage (30b), un organe élastique (36) interposé entre le poussoir (28) et le longeron (18 ou 20) sur lequel il est monté, pour les écarter l'un de l'autre, un crampon (12d) solidaire de ladite lame (12a) et placé de manière à ce qu'en position fermée du fermoir, il est verrouillé par l'organe d'accrochage (30b) lorsque le poussoir se trouve en position de repos, éloignée du longeron (18 ou 20), et dégagé de cet organe (30b) lorsque le poussoir (28) se trouve en position poussée, voisine du longeron (18 ou 20). Clasp for bracelet comprising two arms (10, 12) joined to one another in an articulated manner by one of their ends, each intended to be connected at least medially with one of the ends of the bracelet, the first arm (10) comprising two beams (18, 20) and the second (12) a blade (12a) interposed between the beams (18, 20) and together defining a longitudinal axis (AA), and a locking member (16) for removably attach the arms (10, 12) to each other when the clasp is in the closed position, characterized in that the locking member (16) comprises a pusher (28) and a stud (30) fixed to each other, arranged on either side and mounted to slide on a beam (18 or 20), along a transverse axis (BB) perpendicular to the longitudinal axis (AA), said stud (30) being disposed between the two longitudinal members (18, 20) and provided with a hooking member (30b), an elastic member (36) interposed between the pusher (28) and the spar (18 or 20) on which it is mounted, to separate them from one another, a crampon (12d) integral with said blade (12a) and placed so that in the closed position of the clasp, it is locked by the hooking member (30b) when the pusher is in the rest position, far away of the spar (18 or 20), and released from this member (30b) when the pusher (28) is in the pushed position, close to the spar (18 or 20). Fermoir selon la revendication 1, caractérisé en ce que ledit organe d'accrochage (30b) et ledit crampon (12d) comportent des premières surfaces de travail (30c, 12e), en contact l'une avec l'autre lorsqu'une pression est appliquée sur les bras pour fermer le fermoir, tangentes l'une de l'autre, ladite tangente formant un angle aigu avec l'axe transversal (B-B), de manière à ce que la pression exercée par le crampon (12d) sur l'organe d'accrochage (30b) tende à écarter le plot (30) du longeron (18 ou 20) auquel il est adjacent, jusqu'à permettre à l'organe d'accrochage (30b) de passer au-delà dudit crampon (12d).Clasp according to claim 1, characterized in that said hooking member (30b) and said clamp (12d) have first working surfaces (30c, 12e), in contact with each other when pressure is applied applied to the arms to close the clasp, tangent to each other, said tangent forming an acute angle with the transverse axis (BB), so that the pressure exerted by the crampon (12d) on the latching member (30b) tends to move the stud (30) away from the spar (18 or 20) to which it is adjacent, until allowing the latching member (30b) to pass beyond said stud (12d ). Fermoir selon la revendication 2, caractérisé en ce que ledit organe d'accrochage (30b) et ledit crampon (12d) comportent des secondes surfaces (12f, 30d) de travail parallèles aux axes longitudinal et transversal et coopérant l'une avec l'autre lorsque le fermoir est en position fermée, pour assurer un blocage de l'organe d'accrochage (30b) par le crampon (12d).Clasp according to claim 2, characterized in that said hooking member (30b) and said clamp (12d) comprise second working surfaces (12f, 30d) parallel to the longitudinal and transverse axes and cooperating with each other when the clasp is in the closed position, to ensure that the hooking member (30b) is blocked by the clamp (12d). Fermoir selon l'une des revendications 1 à 3, caractérisé en ce que ledit poussoir (28) est relié au plot (30) par deux tiges rigides (32), parallèles entre elles et traversant le longeron (18 ou 20) qui leur est adjacent.Clasp according to one of claims 1 to 3, characterized in that said pusher (28) is connected to the stud (30) by two rigid rods (32), mutually parallel and passing through the spar (18 or 20) which is their adjacent. Fermoir selon la revendication 4, caractérisé en ce que les longerons (18, 20) sont reliés l'un à l'autre par un barreau (26) sur lequel le plot (30) est monté coulissant.Clasp according to claim 4, characterized in that the beams (18, 20) are connected to each other by a bar (26) on which the stud (30) is slidably mounted. Fermoir selon la revendication 5, caractérisé en ce que l'organe élastique comprend un ressort à boudin (36), intercalé entre le poussoir (28) et le longeron (18 ou 20), et un tube (34) entourant ledit ressort (36) et engagé dans des trous que comportent le poussoir (28) et le longeron (18 ou 20), ledit tube (34) étant fixé dans l'un et pouvant coulisser librement dans l'autre trou.Clasp according to claim 5, characterized in that the elastic member comprises a coil spring (36), interposed between the pusher (28) and the beam (18 or 20), and a tube (34) surrounding said spring (36 ) and engaged in holes that include the pusher (28) and the beam (18 or 20), said tube (34) being fixed in one and being able to slide freely in the other hole. Fermoir selon la revendication 6, caractérisé en ce qu'il comporte deux ensembles formés d'un poussoir (28) et d'un plot (30), chaque ensemble étant monté sur l'un des longerons (18 ou 20).Clasp according to claim 6, characterized in that it comprises two assemblies formed by a pusher (28) and a stud (30), each assembly being mounted on one of the side members (18 or 20). Fermoir selon l'une des revendications 6 et 7, caractérisé en ce qu'il comprend un troisième bras (14), comportant également une lame (14a), lesdites lames (12a, 14a) occupant chacune la moitié de la longueur desdits longerons (18, 20) et étant munies chacune d'un crampon (12d, 14d), et en ce que ledit plot (30) comporte deux organes d'accrochage (30b) coopérant respectivement avec un crampon (12d) de l'une et un crampon (14d) de l'autre lame, chacun des deuxième et troisième bras (12, 14) étant monté pivotant sur les longerons (18, 20) par l'une de leurs extrémités (12b, 14b) et étant solidaire du bracelet par l'autre extrémité (12c, 14c).Clasp according to one of claims 6 and 7, characterized in that it comprises a third arm (14), also comprising a blade (14a), said blades (12a, 14a) each occupying half the length of said beams ( 18, 20) and being each provided with a crampon (12d, 14d), and in that said stud (30) comprises two attachment members (30b) cooperating respectively with a crampon (12d) of one and one crampon (14d) of the other blade, each of the second and third arms (12, 14) being pivotally mounted on the side members (18, 20) by one of their ends (12b, 14b) and being integral with the bracelet by the other end (12c, 14c). Fermoir selon la revendication 8, caractérisé en ce que ledit barreau (26) relie les longerons (18, 20) dans leur partie médiane en référence à l'axe longitudinal (A-A).Clasp according to claim 8, characterized in that said bar (26) connects the side members (18, 20) in their middle part with reference to the longitudinal axis (AA).
    EP01124914A 2001-10-19 2001-10-19 Closure Expired - Lifetime EP1304054B1 (en)

    Priority Applications (3)

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    DE60129331T DE60129331D1 (en) 2001-10-19 2001-10-19 shutter
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    AT01124914T ATE366527T1 (en) 2001-10-19 2001-10-19 CLOSURE

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    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JP2015000339A (en) * 2013-06-12 2015-01-05 シモン・エ・メンブレ・エス アー Clasp for piece of jewellery or wristwatch
    CN115297748A (en) * 2020-02-19 2022-11-04 埃尔巴斯公司 Clasp for a bracelet, in particular a watch bracelet

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    Publication number Priority date Publication date Assignee Title
    CH670941A5 (en) * 1987-02-16 1989-07-31 Cornu & Cie S A Bracelet fastener with folding parts locked to support - has two pushbuttons sliding in support with ends projecting and engaging in slots in folding parts
    US4928359A (en) * 1988-07-15 1990-05-29 Omega Sa Extendable bracelet clasp with fine adjustment
    EP0383039A1 (en) * 1989-02-16 1990-08-22 Petitjean S.A. Folding fastener for a bracelet
    JPH07163409A (en) * 1993-12-16 1995-06-27 Seiko Epson Corp Clasp clasp for watch band, watch band, and watch
    EP0913106A1 (en) * 1997-10-30 1999-05-06 Dexel S.A. Foldable fastener for a bracelet
    GB2340168A (en) * 1998-07-03 2000-02-16 Winox Ind Limited A Buckle

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    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CH670941A5 (en) * 1987-02-16 1989-07-31 Cornu & Cie S A Bracelet fastener with folding parts locked to support - has two pushbuttons sliding in support with ends projecting and engaging in slots in folding parts
    US4928359A (en) * 1988-07-15 1990-05-29 Omega Sa Extendable bracelet clasp with fine adjustment
    EP0383039A1 (en) * 1989-02-16 1990-08-22 Petitjean S.A. Folding fastener for a bracelet
    JPH07163409A (en) * 1993-12-16 1995-06-27 Seiko Epson Corp Clasp clasp for watch band, watch band, and watch
    EP0913106A1 (en) * 1997-10-30 1999-05-06 Dexel S.A. Foldable fastener for a bracelet
    GB2340168A (en) * 1998-07-03 2000-02-16 Winox Ind Limited A Buckle

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    Title
    PATENT ABSTRACTS OF JAPAN vol. 1995, no. 09 31 October 1995 (1995-10-31) *

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JP2015000339A (en) * 2013-06-12 2015-01-05 シモン・エ・メンブレ・エス アー Clasp for piece of jewellery or wristwatch
    CN115297748A (en) * 2020-02-19 2022-11-04 埃尔巴斯公司 Clasp for a bracelet, in particular a watch bracelet

    Also Published As

    Publication number Publication date
    EP1304054B1 (en) 2007-07-11
    DE60129331D1 (en) 2007-08-23
    ATE366527T1 (en) 2007-08-15

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