EP0833579B1 - Watchstrap clasp - Google Patents

Watchstrap clasp Download PDF

Info

Publication number
EP0833579B1
EP0833579B1 EP96905653A EP96905653A EP0833579B1 EP 0833579 B1 EP0833579 B1 EP 0833579B1 EP 96905653 A EP96905653 A EP 96905653A EP 96905653 A EP96905653 A EP 96905653A EP 0833579 B1 EP0833579 B1 EP 0833579B1
Authority
EP
European Patent Office
Prior art keywords
locking
clasp
safety cover
walls
locking device
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
EP96905653A
Other languages
German (de)
French (fr)
Other versions
EP0833579A1 (en
Inventor
Luigi Ferrario
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.)
Rolex SA
Original Assignee
Montres Rolex 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 Montres Rolex SA filed Critical Montres Rolex SA
Publication of EP0833579A1 publication Critical patent/EP0833579A1/en
Application granted granted Critical
Publication of EP0833579B1 publication Critical patent/EP0833579B1/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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/21—Strap tighteners
    • Y10T24/2143—Strap-attached folding lever
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/21—Strap tighteners
    • Y10T24/2143—Strap-attached folding lever
    • Y10T24/2155—Jewelry-watch straps

Definitions

  • the invention relates to a safety clasp according to the claims.
  • the notched locking device of a clasp generally has a force fixed adjusted during manufacturing and which can be adjusted during the maintenance of the wristwatch by a specialist. It may vary depending on the model of the wristwatch chosen.
  • the "Male” or “Sport” models can be operated with a closing force greater than a model “Women” . It turned out as a disadvantage that the closing force of the wristwatch clasp cannot not be set by users based on activities daily or leisure.
  • the object of the present invention is to provide a solution to these problems by creating a general purpose clasp by example for a wristwatch, of a particularly compact construction and compatible with known and proven manufacturing techniques.
  • this object is achieved with a clasp fitted with a closure safety allowing individual adjustment of the latching force.
  • FIGS. 1a, 1b and 2 show the clasp according to the invention in the closed state ( Figure 1a) and in the open state ( Figure 1b).
  • the bracelet and the clasp 1 are preferably metallic, they can be made of stainless steel and / or gold.
  • FIGS. 1a, 1b and 2 show the last chains 2,2 ′ of the bracelet, a lower blade 3 of the clasp, a locking stud 6, for example welded, on the lower blade 3 of the clasp, a terminal connecting element 7, of the clasp, an upper blade 11 and a locking device 4 provided with a safety cover 5.
  • Clasp 1 has three axes of articulation 8,9,10.
  • the first axis 8 is used to articulate the upper blade 11 of the clasp 1 with the last chain 2 'of the bracelet.
  • the second axis 9 is used for the articulation of the locking 4 with a guide sleeve 9.0 fixed to the blade upper 11 of the clasp 1.
  • the third axis 10 is used for articulation from the safety cover 5 to the locking device 4.
  • Clasp 1 closes by successive snaps of a device 4 and a safety cover 5 on the locking pin 6.
  • a fourth axis 13 allows the articulation of the connecting element 7 with the last link 2 of the bracelet.
  • the locking device clasp closes in two times. In firstly, by holding the clasp 1, for example by the end of the cover 5, the upper blade 11 of the clasp 1 is turned until it hits the lower blade 3 of the clasp. At the same time, the locking device 4 is pressed towards the lower clasp blade 3 1 against the locking pin 6 of the lower blade 3 of the clasp with which it engages. In a second time, the safety cover 5 is pivoted relative to the locking device 4 and pressed against the locking device 4, (FIG. 5c) with which it comes in take. Engaging the cover increases the force exerted on the locking pin 6 as will be explained thereafter and constitutes a security closure. The details of these interlocks are described in the description according to FIGS. 5a to 5c, 6a, 6b and 7.
  • the safety cover 5 serves both as a means of closing the clasp and of ornamental piece.
  • the goal is to conceal the locking device 4 through the safety cover 5.
  • the safety cover 5 thus covers and conceals the locking device 4 in its quasi screen.
  • Clasp 1 closed with its locked safety has an aspect similar to the terminal connecting element 7 and thereby the aesthetics are improved.
  • This clasp is opened by inverting the two stages described above.
  • the device for locking device 4 comprises a housing 4.0 provided with a central notch 16.
  • the housing 4.0 is drilled with coaxial holes 14.0,14.0 'serving for guiding two locking elements 14.14. It is still drilled with coaxial holes 10.0,10.0 ' an articulation rod 10 (figures 1a, 1b and 2). Two guide bushings 15.15 'carry a hinge rod 9 which passes through a guide sleeve 9.0 welded to the upper blade 11 of the clasp 1 ( Figures 1a, 1b and 2).
  • Other embodiments of the elements of a closure of the clasp are of course possible for those skilled in the art, knowing the present invention. For example, it is possible to use only one locking element.
  • the two locking elements 14.14 ' are pistons arranged on along an axis AA '. These locking elements can be spring loaded.
  • the contact force of the locking elements 14,14 ' is defined by the dimensions chosen (length, diameter, etc.) and by the materials chosen.
  • Foot pistons 14.2,14.2 ' have a convex rounded portion, serving as a contact.
  • These pistons of heads 14.1,14.1 'and feet 14.2,14.2' are assembled so as to be able to resist pressures along their axis AA '.
  • walls 22, 22 'and recesses 20, 20' of the safety cover 5 are engaged with the locking elements 14, 14 '.
  • a preferred embodiment of a safety cover 5 is shown in two sectional views according to Figures 4b and 4c . The details concerning the operation of the locking elements 14, 14 ′ during the steps for closing the clasp are described in the description according to FIGS. 5a to 5c.
  • FIGS. 5a to 5c show a part of the locking stud 6, a part of a locking device 4 comprising two locking elements 14,14 'arranged in two holes 14,0,14.0' serving to guide the two locking elements 14, 14 'and part of a safety cover 5.
  • FIG. 5a shows a first step in closing.
  • the locking pin 6 has two fixing slots 6.0,6.0 ' concaves, which engage the ends convex feet pistons 14.2,14.2 '.
  • the surfaces concave of the fixing notches 6.0,6.0 'and the convex surfaces of the pistons feet 14.2,14.2 ' preferably have the same spokes, allowing optimal contact thanks to a contact surface maximum between the two elements.
  • Figure 5b shows a second stage of closure showing the locking device 4 engaged with the locking pad 6 (first closing step).
  • the locking device 4 includes, with reference to FIG. 4, a central housing 16 whose foot pistons 14.2,14.2 'project from the walls interior formed by the central housing 16.
  • the locking elements 14,14 ' are movable along their axis AA' under external pressures.
  • Elastic rings 21.21 ', 21' ', 21' '' hold the locking elements 14,14 'correctly centered in the axis AA 'and in the holes 14.0,14.0'.
  • These elastic rings 21,21 ', 21' ', 21' '' are by example an open spring steel coil.
  • FIG. 5c shows a third stage of the closure showing the cover of safety 5 maintained by a second hooking on the locking device 4 (second closing step).
  • the safety cover 5 has two stop notches 20,20 'and acts with walls 22,22 'on the pistons of heads 14.1,14.1' projecting from outer walls of the housing 4.0 of the locking device 4.
  • the walls 22,22 'slide on the pistons of heads 14.1,14.1' and push the elements of locking 14,14 'slightly inward of the housing 4.0.
  • This second force is chosen greater than the resistance force of the elastic rings 21,21 ', 21' ', 21' '.
  • Figure 5c shows that the two adjacent elastic rings 21,21 '' ' head pistons 14.1,14.1 'are compressed and the two rings elastic 21 ', 21 "adjacent to the base pistons 14.2,14.2' are relaxed.
  • the pistons feet 14.2,14.2 ' hook into the fixing notches 6.0, 6.0' of the stud locking 6.
  • This second force or pressure increases the gripping force of the clasp and allows a safety closure. All forces or pressures can be adjusted.
  • FIGS. 6a and 6b show a second embodiment of a locking device 4 for the clasp 1.
  • the locking device 4 essentially comprises a housing 4.0 provided with a central housing 16.
  • the housing 4.0 is pierced with holes 17.0, 18.0 for guiding two pins of variable diameter 17,18 and is additionally pierced with coaxial holes 10.0,10.0 'for guiding an articulation rod 10 ( Figures 1a, 1b and 2).
  • Two guide sleeves 15, 15 ′ support an articulation rod 9 in a guide sleeve 9.0 welded to the upper blade 11 of the clasp 1 (FIGS. 1a, 1b and 2).
  • Two locking elements 14,14 'in the form of self-centered elastic clips occupy a remaining space 23 in the locking device 4.
  • the space 23 is formed so as to hold the locking elements 14,14'. After closing the locking device 4 on the locking pad 6, the latter is in the central housing 16, in engagement with the locking elements 14,14 '. After closing the safety cover 5 on the locking device 4, the walls of the safety cover 5 are engaged with the locking elements 14,14 '.
  • the two locking elements 14.14 ' in the form of self-centered elastic clpis act along a contact axis AA 'and have curved portions more flexible 14.3,14.3 ', and straight and more rigid portions 14.4,14.4.
  • the bearing surfaces of these locking elements are rounded.
  • locking elements 14, 14 ′ are springs.
  • the strength of labeling these spring locking elements 14,14 ' is defined by their dimensions chosen (length, diameter, etc.) and by the materials chosen.
  • the spring locking elements 14, 14 ′ are in the rest position without voltage.
  • the two locking elements 14, 14 ′ are guided by adjustment on walls delimiting the space 23, for example, the walls of the neighboring housing 4.0 to the straight portions 14.4, 14.4 'of the locking elements 14.14' serving to guide.
  • the locking elements 14,14 ' are compressible / extensible on along their contact axis AA 'under external pressures.
  • FIG. 7 shows a locking pin 6 screwed onto the blade lower 3 of the clasp, having two fixing notches 6.0,6.0 ', i.e. concave surfaces in the outer wall of the locking stud 6.
  • notches 6.0,6.0 'and the rounded portions of the locking elements 14,14' are adapted to each other, for example having the same radii, allowing optimal support between the two elements.
  • closing forces or pressures are adjustable by various means.
  • the 4.0 butte box for example against the lower blade 3 of the clasp.
  • the closing force can be adjusted by pins of variable diameter 17.18.
  • these pins of diameter variable 17.18 are adjustable by the choice of materials used, by the choice the diameter of the pins, the shape of the exterior surfaces, etc. As for example they can be elastic or they can have diameters different.
  • Figure 7 illustrates the example of two pins of variable diameter 17.18, of which the central diameter of the pin of variable diameter 17 has a smaller diameter than the variable diameter pin 18.
  • the element lock 14 is in contact with play with the central diameter of the pin of variable diameter 17.
  • the locking element 14 ' is in contact with or with little play with the constant central diameter of the pin of variable diameter 18. Under the effect of a closing force, the diameter center of the variable diameter pin 17 leaves a play in the locking element 14. On the other hand, the constant central diameter of the pin of variable diameter 18 leaves little or no play in the element of 14 'lock. Such a variation decreases the effective closing force acting on the locking pin 6.
  • one or more diameter pins variable 17.18 is not limited to a clasp 1 according to the second embodiment a locking device 4.
  • the use is also possible with a clasp 1 according to the first embodiment of a locking device 4.
  • the closing forces or pressures are not only adjustable by the pins of variable diameter 17.18 but by other means of variation. Another means of adjustment is the force of resistance of the locking elements 14,14 'acting on the cover of security 5 when it is closed on the locking device 4.
  • the orientation of the locking elements 14, 14 ′ in the space 23 of the second embodiment of a locking device 4 can be adjusted.
  • the locking elements 14, 14 ′ can be turned by 180 ° in the space 23 designed to be symmetrical in the locking device 4, thus allowing a variation of the distance between the straight portions 14.4,14.4 'of the locking elements 14,14' and the hinge 10.
  • the portions straight and rigid 14.4,14.4 'of the locking elements 14,14' form an axis of resistance substantially perpendicular to the closing plane of the cover 5.
  • the resistance force of the rigid portion 14.4,14.4 'acting on the safety cover 5 increases or decreases according to the magnitude of the distance between the hinge 10 and the resistance axis.
  • the visible elements of the closure of the clasp are preferably metallic, they are for example made of stainless steel and / or gold.
  • the locking pin 6 is mounted on a lower blade 3 of the clasp, preferably by welding or screwing. Other techniques of course are possible.

Landscapes

  • Adornments (AREA)
  • Closures For Containers (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)

Description

L'invention concerne un fermoir de sécurité selon les revendications. The invention relates to a safety clasp according to the claims.

Le dispositif de verrouillage à cran d'un fermoir a généralement une force fixe réglée lors de la fabrication et qui peut être ajustée lors de l'entretien de la montre-bracelet par un spécialiste. Elle peut varier selon le modèle de la montre-bracelet choisi. Les modèles "Homme" ou "Sport", peuvent être actionnés avec une force de fermeture supérieure à un modèle "Femme" . Il s'est avéré comme inconvénient que la force de fermeture du fermoir de montres-bracelets ne peut pas être réglée par les utilisateurs en fonction des activités quotidiennes ou de loisir.The notched locking device of a clasp generally has a force fixed adjusted during manufacturing and which can be adjusted during the maintenance of the wristwatch by a specialist. It may vary depending on the model of the wristwatch chosen. The "Male" or "Sport" models, can be operated with a closing force greater than a model "Women" . It turned out as a disadvantage that the closing force of the wristwatch clasp cannot not be set by users based on activities daily or leisure.

Si un tel fermoir n'est pas muni d'un moyen de sécurité il peut s'ouvrir sous l'effet d'un choc, par exemple lors d'une activité sportive.If such a clasp is not fitted with a safety device it can open due to a shock, for example when of a sporting activity.

C'est pourquoi l'objetif de la présente invention est d'apporter une solution à ces problèmes en créant un fermoir, à application générale, par exemple pour une montre-bracelet, d'une construction particulièrement compacte et compatible avec les techniques de fabrication connues et éprouvées. This is why the object of the present invention is to provide a solution to these problems by creating a general purpose clasp by example for a wristwatch, of a particularly compact construction and compatible with known and proven manufacturing techniques.

On a déjà proposé dans le CH 666 165 un fermoir à deux bras articulés maintenus en position fermée par un cran. Afin d'éviter toute ouverture intempestive, du fermoir, un pont est articulé latéralement au fermoir et est susceptible d'être rabattu par dessus le bras supérieur, position dans laquelle il est verrouillé par un second cran indépendant du premier cran. Il n'y a donc aucune interaction entre la fermeture à cran servant à maintenir les deux lames en position de fermeture et celle du pont, de sorte que les deux moyens de verrouillage sont indépendants l'un de l'autre, à la seule exception que le pont ne peut être verrouillé qu'après la fermeture à cran des deux bras. We have already proposed in CH 666 165 a double clasp articulated arms held in the closed position by a notch. In order to avoid any untimely opening, the clasp, a bridge is articulated laterally to the clasp and is susceptible to be folded over the upper arm, position in which is locked by a second notch independent of the first notch. There is therefore no interaction between the closure notch used to hold the two blades in position closing and that of the bridge, so the two means are independent of each other, at the only exception that the bridge can only be locked after notch closure of both arms.

Conformément à l'invention, cet objetif est atteint avec un fermoir muni d'une fermeture de sécurité permettant un réglage individuel de la force d'encliquetage. According to the invention, this object is achieved with a clasp fitted with a closure safety allowing individual adjustment of the latching force.

Les caractéristiques et avantages de l'invention seront mieux compris à la lecture de la description qui va suivre de plusieurs modes d'exécution préférés, description faite en référence aux dessins annexés dans lesquels:

  • les figures 1a et 1b sont des vues en perspective d'un mode d'exécution préféré d'une fermeture du fermoir.
  • la figure 2 est une vue en perspective éclatée d'un mode d'exécution préféré du fermoir selon les figures 1a et 1b.
  • les figures 3a et 3b sont des vues en plan, respectivement de profil latéral du dispositif de verrouillage du fermoir.
  • la figure 4a est une vue en perspective éclatée du dispositif de verrouillage selon les figures 3a et 3b.
  • les figures 4b et 4c sont des vues en coupe d'un couvercle de sécurité du fermoir selon les figures 1a, 1b et 2.
  • les figures 5a à 5c sont des vues en coupe de la figure 3a, montrant différentes positions du dispositif de verrouillage.
  • les figures 6a et 6b sont des vues de dessus avec coupe et de profil avec coupe d'un deuxième mode d'exécution du fermoir.
  • la figure 7 est une vue en coupe selon A-A' de la figure 6a.
The characteristics and advantages of the invention will be better understood on reading the description which follows of several preferred embodiments, description made with reference to the accompanying drawings in which:
  • Figures 1a and 1b are perspective views of a preferred embodiment of a closure of the clasp.
  • Figure 2 is an exploded perspective view of a preferred embodiment of the clasp according to Figures 1a and 1b.
  • Figures 3a and 3b are plan views, respectively in side profile of the clasp locking device.
  • Figure 4a is an exploded perspective view of the locking device according to Figures 3a and 3b.
  • FIGS. 4b and 4c are sectional views of a safety cover of the clasp according to FIGS. 1a, 1b and 2.
  • Figures 5a to 5c are sectional views of Figure 3a, showing different positions of the locking device.
  • Figures 6a and 6b are top views with section and profile with section of a second embodiment of the clasp.
  • Figure 7 is a sectional view along AA 'of Figure 6a.

Les figures 1a et 1b montrent le fermoir selon l'invention à l' état fermé (figure 1a) et à l'état ouvert (figure 1b). Le bracelet et le fermoir 1 sont de préférence métalliques, ils peuvent être réalisés en acier inox et/ou en or. Les figures 1a, 1b et 2 montrent les derniers chaínons 2,2' du bracelet, une lame inférieure 3 du fermoir, un plot de verrouillage 6, par exemple soudé, sur la lame inférieure 3 du fermoir, un élément terminal de liaison 7, du fermoir, une lame supérieure 11 et un dispositif de verrouillage 4 muni d'un couvercle de sécurité 5. Figures 1a and 1b show the clasp according to the invention in the closed state (Figure 1a) and in the open state (Figure 1b). The bracelet and the clasp 1 are preferably metallic, they can be made of stainless steel and / or gold. FIGS. 1a, 1b and 2 show the last chains 2,2 ′ of the bracelet, a lower blade 3 of the clasp, a locking stud 6, for example welded, on the lower blade 3 of the clasp, a terminal connecting element 7, of the clasp, an upper blade 11 and a locking device 4 provided with a safety cover 5.

Le fermoir 1 comporte trois axes d'articulation 8,9,10. Le premier axe 8 sert à l'articulation de la lame supérieure 11 du fermoir 1 avec le dernier chaínon 2' du bracelet. Le deuxième axe 9 sert à l'articulation du dispositif de verrouillage 4 avec une douille de guidage 9.0 fixée à la lame supérieure 11 du fermoir 1. Le troisième axe 10 sert à l'articulation du couvercle de sécurité 5 au dispositif de verrouillage 4. Le fermoir 1 se ferme par accrochages successifs d'un dispositif de verrouillage 4 et d'un couvercle de sécurité 5 sur le plot de verrouillage 6. Pour compléter la description des éléments visibles, un quatrième axe 13 permet l'articulation de l'élément de liaison 7 avec le dernier chainon 2 du bracelet.Clasp 1 has three axes of articulation 8,9,10. The first axis 8 is used to articulate the upper blade 11 of the clasp 1 with the last chain 2 'of the bracelet. The second axis 9 is used for the articulation of the locking 4 with a guide sleeve 9.0 fixed to the blade upper 11 of the clasp 1. The third axis 10 is used for articulation from the safety cover 5 to the locking device 4. Clasp 1 closes by successive snaps of a device 4 and a safety cover 5 on the locking pin 6. To complete the description of visible elements, a fourth axis 13 allows the articulation of the connecting element 7 with the last link 2 of the bracelet.

Le dispositif de verrouillage du fermoir se ferme en deux temps. Dans un premier temps, en tenant le fermoir 1, par exemple par l'extrémité du couvercle de sécurité 5, la lame supérieure 11 du fermoir 1 est tournée jusqu'à ce qu'elle butte contre la lame inférieure 3 du fermoir. En même temps, le dispositif de verrouillage 4 est pressé vers la lame inférieure 3 du fermoir 1 contre le plot de verrouillage 6 de la lame inférieure 3 du fermoir avec lequel il vient en prise. Dans un second temps, le couvercle de sécurité 5 est pivoté par rapport au dispositif de verrouillage 4 et pressé contre le dispositif de verrouillage 4, (figure 5c) avec lequel il vient en prise. La mise en prise du couvercle augmente la force exercée sur le plot de verrouillage 6 comme on l'expliquera par la suite et constitue une fermeture de sécurité. Les détails concernant ces verrouillages sont décrits dans la description selon les figures 5a à 5c, 6a,6b et 7.The locking device clasp closes in two times. In firstly, by holding the clasp 1, for example by the end of the cover 5, the upper blade 11 of the clasp 1 is turned until it hits the lower blade 3 of the clasp. At the same time, the locking device 4 is pressed towards the lower clasp blade 3 1 against the locking pin 6 of the lower blade 3 of the clasp with which it engages. In a second time, the safety cover 5 is pivoted relative to the locking device 4 and pressed against the locking device 4, (FIG. 5c) with which it comes in take. Engaging the cover increases the force exerted on the locking pin 6 as will be explained thereafter and constitutes a security closure. The details of these interlocks are described in the description according to FIGS. 5a to 5c, 6a, 6b and 7.

Le couvercle de sécurité 5 sert à la fois de moyen de fermeture du fermoir et de pièce d'ornement. Le but est de dissimuler le dispositif de verrouillage 4 par le couvercle de sécurité 5. A l'état fermé, le couvercle de sécurité 5 recouvre et dissimule ainsi le dispositif de verrouillage 4 dans sa quasi totalité. Le fermoir 1 fermé avec sa sécurité verrouillée possède un aspect similaire à l'élément terminal de liaison 7 et par ce fait l'esthétique est ameliorée.The safety cover 5 serves both as a means of closing the clasp and of ornamental piece. The goal is to conceal the locking device 4 through the safety cover 5. In the closed state, the safety cover 5 thus covers and conceals the locking device 4 in its quasi screen. Clasp 1 closed with its locked safety has an aspect similar to the terminal connecting element 7 and thereby the aesthetics are improved.

L'ouverture de ce fermoir s'effectue par inversion des deux étapes décrites ci-dessus.This clasp is opened by inverting the two stages described above.

Selon les figures 3a,3b et 4a, le dispositif de verrouillage 4 comprend un boítier 4.0 muni d'une encoche centrale 16. According to FIGS. 3a, 3b and 4a, the device for locking device 4 comprises a housing 4.0 provided with a central notch 16.

Le boítier 4.0 est percé de trous coaxiaux 14.0,14.0' servant de guidage de deux éléments de verrouillage 14,14'. Il est encore percé de trous coaxiaux 10.0,10.0' d'une tige d'articulation 10 (figures 1a, 1b et 2). Deux douilles de guidage 15,15' portent une tige d'articulation 9 qui traverse une douille de guidage 9.0 soudée sur la lame supérieure 11 du fermoir 1 (figures 1a, 1b et 2). D'autres formes d'exécution des éléments d'une fermeture du fermoir sont bien sûr possibles à l'homme de l'art, connaissant la présente invention. A titre d'exemple, il est possible d'utiliser seulement un élément de verrouillage.The housing 4.0 is drilled with coaxial holes 14.0,14.0 'serving for guiding two locking elements 14.14. It is still drilled with coaxial holes 10.0,10.0 ' an articulation rod 10 (figures 1a, 1b and 2). Two guide bushings 15.15 'carry a hinge rod 9 which passes through a guide sleeve 9.0 welded to the upper blade 11 of the clasp 1 (Figures 1a, 1b and 2). Other embodiments of the elements of a closure of the clasp are of course possible for those skilled in the art, knowing the present invention. For example, it is possible to use only one locking element.

Les deux éléments de verrouillage 14,14' sont des pistons disposés le long d'un axe AA'. Ces éléments de verrouillage peuvent être à ressorts. La force de contact des éléments de verrouillage 14,14' est définis par les dimensions choisies (longueur, diamètre, etc.) et par les matériaux choisis. Chaque élément de verrouillage 14,14' comprend un piston de tête 14.1,14.1' et un piston de pied 14,2,14.2'. Les pistons de têtes 14.1,14.1' présentent une portion arrondie convexe servant de contact et une portion cylindrique. Les pistons de pieds 14.2,14.2' présentent une portion arrondie convexe, servant de contact. Ces pistons de têtes 14.1,14.1' et de pieds 14.2,14.2' sont assemblés de façon à pouvoir résister à des pressions le long de leur axe AA'. Après montage dans le boítier 4.0 du dispositif de verrouillage 4, les deux éléments de verrouillages 14,14' sont guidés dans les trous 14.0,14.0' aptes à supporter des pressions externes agissant sur les pistons de têtes 14.1,14.1' et sur les pistons de pieds 14.2,14.2'. The two locking elements 14.14 ' are pistons arranged on along an axis AA '. These locking elements can be spring loaded. The contact force of the locking elements 14,14 'is defined by the dimensions chosen (length, diameter, etc.) and by the materials chosen. Each locking element 14,14 'comprises a head piston 14.1,14.1 'and a foot piston 14,2,14.2'. Head pistons 14.1,14.1 'have a convex rounded portion serving as contact and a cylindrical portion. Foot pistons 14.2,14.2 'have a convex rounded portion, serving as a contact. These pistons of heads 14.1,14.1 'and feet 14.2,14.2' are assembled so as to be able to resist pressures along their axis AA '. After mounting in the housing 4.0 of the locking device 4, the two elements of 14,14 'locks are guided in the holes 14,0,14.0' able to withstand external pressures acting on the pistons 14.1,14.1 'heads and 14.2,14.2' foot pistons.

Les pistons de têtes 14.1,14.1' font saillie des parois extérnes du boítier 4.0 pour venir en prise avec le couvercle de sécurité 5. Les pistons de pieds 14.2,14.2' font saillie des deux parois intérnes du boítier 4.0 pour venir en prise avec le plot de verrouillage 6. Après fermeture du dispositif de verrouillage 4 sur le plot de verrouillage 6, ce dernier se trouve dans l'encoche centrale 16, en prise avec les éléments de verrouillage 14,14'. Lors de la fermeture du couvercle de sécurité 5 sur le dispositif de verrouillage 4, des parois 22,22' et des creux 20,20' du couvercle de sécurité 5 sont en prise avec les éléments de verrouillage 14,14'. Un mode d'exécution préféré d'un couvercle de sécurité 5 est montré dans deux vues en coupe selon les figures 4b et 4c. Les détails concernant le fonctionnement des éléments de verrouillages 14,14' lors des étapes de fermeture du fermoir sont décrits dans la description selon les figures 5a à 5c.The head pistons 14.1,14.1 'protrude from the outer walls of the housing 4.0 to engage with the safety cover 5. The foot pistons 14.2,14.2' protrude from the two internal walls of the housing 4.0 to engage the locking pad 6. After closing the locking device 4 on the locking pad 6, the latter is in the central notch 16, in engagement with the locking elements 14,14 '. When the safety cover 5 is closed on the locking device 4, walls 22, 22 'and recesses 20, 20' of the safety cover 5 are engaged with the locking elements 14, 14 '. A preferred embodiment of a safety cover 5 is shown in two sectional views according to Figures 4b and 4c . The details concerning the operation of the locking elements 14, 14 ′ during the steps for closing the clasp are described in the description according to FIGS. 5a to 5c.

Les étapes de la fermeture et de l'ouverture du fermoir sont représentées par les figures 5a à 5c. Les figures 5a à 5c montrent une partie du plot de verrouillage 6, une partie d'un dispositif de verrouillage 4 comprenant deux éléments de verrouillage 14,14' agencés dans deux trous 14.0,14.0' servant de guidage les deux éléments de verrouillage 14,14' et une partie d'un couvercle de sécurité 5. The steps for closing and opening the clasp are shown in Figures 5a to 5c . FIGS. 5a to 5c show a part of the locking stud 6, a part of a locking device 4 comprising two locking elements 14,14 'arranged in two holes 14,0,14.0' serving to guide the two locking elements 14, 14 'and part of a safety cover 5.

La figure 5a montre une première étape de la fermeture. Le plot de verrouillage 6 présente deux encoches de fixation 6.0,6.0' concaves, qui viennent en prise avec les extrémités convexes des pistons de pieds 14.2,14.2'. Les surfaces concaves des encoches de fixation 6.0,6.0' et les surfaces convexes des pistons de pieds 14.2,14.2' ont de préférence les mêmes rayons, permettant un contact optimal grâce à une surface de contact maximale entre les deux éléments.Figure 5a shows a first step in closing. The locking pin 6 has two fixing slots 6.0,6.0 ' concaves, which engage the ends convex feet pistons 14.2,14.2 '. The surfaces concave of the fixing notches 6.0,6.0 'and the convex surfaces of the pistons feet 14.2,14.2 'preferably have the same spokes, allowing optimal contact thanks to a contact surface maximum between the two elements.

La figure 5b montre une deuxième étape de la fermeture montrant le dispositif de verrouillage 4 en prise avec le plot de verrouillage 6 (première étape de fermeture). Le dispositif de verrouillage 4 comprend, en se référant à la figure 4, un logement central 16 dont les pistons de pieds 14.2,14.2' fait saillie des parois intérieures formées par le logement central 16. Les éléments de verrouillage 14,14' sont mobiles le long de leur axe AA' sous des pressions externes. Des bagues élastiques 21,21',21'',21''' maintiennent les éléments de verrouillage 14,14' correctement centrés dans l'axe AA' et dans les trous 14.0,14.0'. Ces bagues élastiques 21,21',21'',21''' sont par exemple une spire ouverte en acier ressort. Lorsqu'on positionne le dispositif de verrouillage 4 contre le plot de verrouillage 6, une première force ou pression est nécessaire pour faire glisser les pistons de pieds 14.2,14.2' sur les bords extérnes des encoches de fixation 6.0,6.0'. Cette première force pousse les éléments de verrouillage 14,14' légèrement vers l'extérieur du boítier 4.0 et comprime les deux bagues élastiques 21',21" voisines des deux pistons de pieds 14.2,14.2'. Après le passage des bords extérnes des encoches de fixation 6.0,6.0', les bagues élastiques 21',21" se détendent et les pistons de pieds 14.2,14.2" viennent légèrement en prise avec le plot de verrouillage 6. Cette première force ou pression de fermeture est réglable par des moyens divers. Selon des réalisations actuellement préférées, une lame supérieure 400 du dispositif de verrouillage 4 butte par exemple contre la lame inférieure 3 du fermoir. Cette force peut être réglée par des goupilles de diamètre variable. L'actionnement du dispositif de verrouillage 4 sur le plot de verrouillage 6 et la variation des forces d'actionnement du fermoir vont être décrits en détail dans la description du deuxième mode d'exécution préféré d'une fermeture du fermoir selon les figures 6a, 6b et 7.Figure 5b shows a second stage of closure showing the locking device 4 engaged with the locking pad 6 (first closing step). The locking device 4 includes, with reference to FIG. 4, a central housing 16 whose foot pistons 14.2,14.2 'project from the walls interior formed by the central housing 16. The locking elements 14,14 'are movable along their axis AA' under external pressures. Elastic rings 21.21 ', 21' ', 21' '' hold the locking elements 14,14 'correctly centered in the axis AA 'and in the holes 14.0,14.0'. These elastic rings 21,21 ', 21' ', 21' '' are by example an open spring steel coil. When positioning the device lock 4 against the locking pad 6, a first force or pressure is necessary to slide the foot pistons 14.2,14.2 'over the outer edges of the fixing notches 6.0,6.0 '. This first force pushes locking elements 14,14 'slightly towards the outside of the housing 4.0 and compresses the two elastic rings 21 ', 21 "adjacent to the two foot pistons 14.2,14.2. After passing the outer edges of the fixing notches 6.0,6.0 ', the elastic rings 21 ', 21 "relax and the foot pistons 14.2,14.2" slightly engage with the locking pin 6. This first closing force or pressure is adjustable by various means. According to currently preferred embodiments, an upper blade 400 of the 4 butte locking device for example against the lower blade 3 of the clasp. This force can be adjusted by pins of variable diameter. actuation of the locking device 4 on the locking pad 6 and the variation of actuation forces of the clasp will be described in detail in the description of the second preferred embodiment of a closure of the clasp according to Figures 6a, 6b and 7.

La figure 5c montre une troisième étape de la fermeture montrant le couvercle de sécurité 5 maintenu par un second accrochage sur le dispositif de verrouillage 4 (deuxième étape de fermeture). En se référant à la représentation selon les figures 1a, 1b et 2 et à la représentation selon les figures 3a, 3b et 4a, 4b et 4c, le couvercle de sécurité 5 possède deux encoches d'arrêt 20,20' et agit avec des parois 22,22' sur les pistons de têtes 14.1,14.1' faisant saillie des parois extérnes du boítier 4.0 du dispositif de verrouillage 4. Lorsqu'on ferme le couvercle de sécurité 5 sur le dispositif de verrouillage 4, les parois 22,22' glissent sur les pistons de têtes 14.1,14.1' et poussent les éléments de verrouillage 14,14' légèrement vers l'intérieur du boítier 4.0. Cette deuxième force est choisie supérieure à la force de résistance des bagues élastiques 21,21',21'',21'''. La figure 5c montre que les deux bagues élastiques 21,21''' voisines des pistons de têtes 14.1,14.1' sont comprimées et que les deux bagues élastiques 21',21" voisines des pistons de pieds 14.2,14.2' sont détendues. Les pistons de pieds 14.2,14.2' se crochent dans les encoches de fixation 6.0, 6.0' du plot de verrouillage 6. Lorsque les encoches d'arrêt 20,20" sont en prise avec les pistons de têtes 14.1,14.1', les bagues élastiques 21,21',21'',21''' se détendent légèrement. Cette deuxième force ou pression augmente la force d'accrochage du fermoir et permet une fermeture de sécurité. L'ensemble des forces ou pressions peut être réglé.FIG. 5c shows a third stage of the closure showing the cover of safety 5 maintained by a second hooking on the locking device 4 (second closing step). Referring to the representation according to Figures 1a, 1b and 2 and the representation according to Figures 3a, 3b and 4a, 4b and 4c, the safety cover 5 has two stop notches 20,20 'and acts with walls 22,22 'on the pistons of heads 14.1,14.1' projecting from outer walls of the housing 4.0 of the locking device 4. When closes the safety cover 5 on the locking device 4, the walls 22,22 'slide on the pistons of heads 14.1,14.1' and push the elements of locking 14,14 'slightly inward of the housing 4.0. This second force is chosen greater than the resistance force of the elastic rings 21,21 ', 21' ', 21' ''. Figure 5c shows that the two adjacent elastic rings 21,21 '' ' head pistons 14.1,14.1 'are compressed and the two rings elastic 21 ', 21 "adjacent to the base pistons 14.2,14.2' are relaxed. The pistons feet 14.2,14.2 'hook into the fixing notches 6.0, 6.0' of the stud locking 6. When the 20.20 "stop notches are engaged with the pistons heads 14.1,14.1 ', the elastic rings 21,21', 21 '', 21 '' 'slightly relax. This second force or pressure increases the gripping force of the clasp and allows a safety closure. All forces or pressures can be adjusted.

Les figures 6a et 6b montrent un deuxième mode d'exécution d'un dispositif de verrouillage 4 du fermoir 1. Le dispositif de verrouillage 4 comprend essentiellement un boítier 4.0 muni d'un logement central 16. Le boítier 4.0 est percé de trous 17.0,18.0 servant au guidage de deux goupilles de diamètre variable 17,18 et est en outre percé de trous coaxiaux 10.0,10.0' pour le guidage d'une tige d'articulation 10 (figures 1a, 1b et 2). Deux douilles de guidage 15,15' supportent une tige d'articulation 9 dans une douille de guidage 9.0 soudée sur la lame supérieure 11 du fermoir 1 (figures 1a, 1b et 2). Deux éléments de verrouillage 14,14' en forme de clip élastiques auto-centrés occupent un espace subsistant 23 dans le dispositif de verrouillage 4. L'espace 23 est formé de façon à maintenir les éléments de verrouillage 14,14'. Après fermeture du dispositif de verrouillage 4 sur le plot de verrouillage 6, ce dernier se trouve dans le logement central 16, en prise avec les éléments de verrouillage 14,14'. Après la fermeture du couvercle de sécurité 5 sur le dispositif de verrouillage 4, les parois du couvercle de sécurité 5 sont en prise avec les éléments de verrouillage 14,14'. FIGS. 6a and 6b show a second embodiment of a locking device 4 for the clasp 1. The locking device 4 essentially comprises a housing 4.0 provided with a central housing 16. The housing 4.0 is pierced with holes 17.0, 18.0 for guiding two pins of variable diameter 17,18 and is additionally pierced with coaxial holes 10.0,10.0 'for guiding an articulation rod 10 (Figures 1a, 1b and 2). Two guide sleeves 15, 15 ′ support an articulation rod 9 in a guide sleeve 9.0 welded to the upper blade 11 of the clasp 1 (FIGS. 1a, 1b and 2). Two locking elements 14,14 'in the form of self-centered elastic clips occupy a remaining space 23 in the locking device 4. The space 23 is formed so as to hold the locking elements 14,14'. After closing the locking device 4 on the locking pad 6, the latter is in the central housing 16, in engagement with the locking elements 14,14 '. After closing the safety cover 5 on the locking device 4, the walls of the safety cover 5 are engaged with the locking elements 14,14 '.

En variante, il est possible d'utiliser un élément de verrouillage seulement.Alternatively, it is possible to use a locking element only.

Les deux éléments de verrouillage 14,14' en forme de clpis élastiques auto-centrés agissent le long d'un axe de contact AA' et ont des portions courbées plus flexibles 14.3,14.3', et des portions droites et plus rigides 14.4,14.4'. Les surfaces d'appuis de ces éléments de verrouillage sont arrondies. A titre d'exemple, les éléments de verrouillage 14,14' sont des ressorts. La force d'endiquetage de ces éléments de verrouillage à ressort 14,14' est définie par leurs dimensions choisies (longueur, diamètre, etc.) et par les matériaux choisis. De préférence, les éléments de verrouillage à ressort 14,14' sont en position au repos sans tension. Après montage dans le boítier 4.0 dans son dispositif de verrouillage 4, les deux éléments de verrouillages 14,14' sont guidés par ajustement sur des parois délimitant l'espace 23, par exemple, les parois du boítier 4.0 voisines aux portions droites 14.4, 14.4' des éléments de verrouillage 14,14' servant de guide. Les éléments de verrouillage 14,14' sont compressibles/extensibles le long de leur axe de contact AA' sous des pressions externes. Les extrémités des éléments de verrouillage 14,14' sortent légèrement des deux parois latérales extérnes et des deux parois latérales intérnes du boítier 4.0. Les deux parois extérnes sont adjacentes avec le couvercle de sécurité 5 fermé, et les deux parois intérnes sont adjacentes au plot de verrouillage 6. The two locking elements 14.14 ' in the form of self-centered elastic clpis act along a contact axis AA 'and have curved portions more flexible 14.3,14.3 ', and straight and more rigid portions 14.4,14.4. The bearing surfaces of these locking elements are rounded. For example, locking elements 14, 14 ′ are springs. The strength of labeling these spring locking elements 14,14 'is defined by their dimensions chosen (length, diameter, etc.) and by the materials chosen. Preferably, the spring locking elements 14, 14 ′ are in the rest position without voltage. After mounting in the 4.0 housing in its locking device 4, the two locking elements 14, 14 ′ are guided by adjustment on walls delimiting the space 23, for example, the walls of the neighboring housing 4.0 to the straight portions 14.4, 14.4 'of the locking elements 14.14' serving to guide. The locking elements 14,14 'are compressible / extensible on along their contact axis AA 'under external pressures. The extremities locking elements 14,14 'slightly protrude from the two external side walls and two internal side walls of the housing 4.0. The of them external walls are adjacent with the safety cover 5 closed, and the two internal walls are adjacent to the stud lock 6.

Le mécanisme de fermeture et d'ouverture du deuxième mode d'exécution d'un dispositif de verrouillage 4 diffère légèrement du premier mode d'exécution des deux éléments de verrouillage 14,14' de la description selon les figures 5a à 5c. La figure 7 montre un plot de verrouillage 6 vissé sur la lame inférieure 3 du fermoir, ayant deux encoches de fixation 6.0,6.0', c'est-à-dire des surfaces concaves dans la paroi extérieure du plot de verrouillage 6. Ces encoches 6.0,6.0' servent à l'endiquetage des portions arrondies des éléments de verrouillage 14,14' en forme de clips élastiques auto-centrés. De préférence, les encoches 6.0,6.0' et les portions arrondies des éléments de verrouillage 14,14' sont adaptées les unes aux autres, ayant par exemple les mêmes rayons, permettant un appui optimal entre les deux éléments. Lorsqu'on positionne le dispositif de verrouillage 4 contre le plot de verrouillage 6, une première force ou pression est nécessaire, agissant sur les éléments de verrouillage 14,14' qui se trouvent de ce fait en appui contre les encoches 6.0,6.0'. Après cette première étape de fermeture, le dispositif de verrouillage est en prise avec le plot 6. La fermeture de sécurité ne sera effectuée qu'après la deuxième étape de fermeture, c'est-à-dire après la mise en prise du couvercle de sécurité 5 sur le dispositif de verrouillage 4. En se référant aux figures 6a et 7, on voit que le couvercle de sécurité 5 agit sur les éléments de verrouillage 14,14' en forme de clips élastiques auto-centrés sortant des parois latérales extérnes du boítier 4.0 comprimant les éléments de verrouillage 14,14'. Cette deuxième force s'ajoute à la première force mettant en prise les éléments de verrouillage 14,14', avec le plot de verrouillage 6 augmentant ainsi la pression contre celui-ci permettant une fermeture de sécurité. L'ensemble des forces ou pressions peut être réglé.The closing and opening mechanism of the second embodiment of a locking device 4 differs slightly from the first embodiment of the two locking elements 14, 14 ′ of the description according to the figures 5a to 5c. Figure 7 shows a locking pin 6 screwed onto the blade lower 3 of the clasp, having two fixing notches 6.0,6.0 ', i.e. concave surfaces in the outer wall of the locking stud 6. These notches 6.0,6.0 'are used for labeling the rounded portions of the locking elements 14,14 'in the form of self-centered elastic clips. Preferably, notches 6.0,6.0 'and the rounded portions of the locking elements 14,14' are adapted to each other, for example having the same radii, allowing optimal support between the two elements. When positioning the device lock 4 against the locking pad 6, a first force or pressure is necessary, acting on the locking elements 14,14 'which are thus find support against the notches 6.0,6.0 '. After this first closing step, the locking device is engaged with the stud 6. The safety closing does not will be carried out only after the second closing stage, i.e. after engaging the safety cover 5 on the locking device 4. Referring to Figures 6a and 7, we see that the cover of safety 5 acts on the locking elements 14,14 'in the form of elastic clips self-centered coming out of the outer side walls of the case 4.0 compressing the locking elements 14,14 '. This second force is added at the first force engaging the locking elements 14,14 ', with the locking pin 6 increasing thus the pressure against it allowing a closure of security. All forces or pressures can be adjusted.

Ces forces ou pressions de fermeture sont réglables par des moyens divers. Selon des réalisations actuellement préférées, le boítier 4.0 butte, par exemple contre la lame inférieure 3 du fermoir. La force de fermeture peut être réglée par des goupilles de diamètre variable 17,18. Selon une des caractéristiques de l'invention, ces goupilles de diamètre variable 17,18 sont ajustables par le choix des matériaux utilisés, par le choix du diamètre des goupilles, la forme des surfaces extérieures, etc. A titre d'exemple elles peuvent être élastiques ou elles peuvent avoir des diamètres différents. La figure 7 illustre l'exemple de deux goupilles de diamètre variable 17,18, dont le diamètre central de la goupille de diamètre variable 17 a un diamètre inférieur à celui de la goupille de diamètre variable 18. L'élément de verrouillage 14 est en contact avec jeu avec le diamètre central de la goupille de diamètre variable 17. L'élément de verrouillage 14' est en contact sans ou avec peu de jeu avec le diamètre central constant de la goupille de diamètre variable 18. Sous l'effet d'une force de fermeture, le diamètre central de la goupille de diamètre variable 17 laisse un jeu à l'élément de verrouillage 14. Par contre le diamètre central constant de la goupille de diamètre variable 18 ne laisse pas ou peu de jeu à l'élément de verrouillage 14'. Une telle variation diminue la force de fermeture effective agissante sur le plot de verrouillage 6.These closing forces or pressures are adjustable by various means. According to currently preferred embodiments, the 4.0 butte box, for example against the lower blade 3 of the clasp. The closing force can be adjusted by pins of variable diameter 17.18. According to one of the characteristics of the invention, these pins of diameter variable 17.18 are adjustable by the choice of materials used, by the choice the diameter of the pins, the shape of the exterior surfaces, etc. As for example they can be elastic or they can have diameters different. Figure 7 illustrates the example of two pins of variable diameter 17.18, of which the central diameter of the pin of variable diameter 17 has a smaller diameter than the variable diameter pin 18. The element lock 14 is in contact with play with the central diameter of the pin of variable diameter 17. The locking element 14 'is in contact with or with little play with the constant central diameter of the pin of variable diameter 18. Under the effect of a closing force, the diameter center of the variable diameter pin 17 leaves a play in the locking element 14. On the other hand, the constant central diameter of the pin of variable diameter 18 leaves little or no play in the element of 14 'lock. Such a variation decreases the effective closing force acting on the locking pin 6.

Il en résulte que la force d'encliquetage d'un fermoir 1, par exemple muni d'une paire de goupilles dont le diamètre varie fortement 17 est inférieure à celle d'un fermoir 1 muni d'une paire de goupilles dont le diamètre varie faiblement 18 . En utilisant des goupilles à faible variation de diamètre 18, il est possible d'obtenir un bracelet modèle "Homme" ou "Sport", dont la force d'encliquetage est supérieure à un modèle "Femme", réalisé avec des goupilles à forte variation de diamètre. It follows that the latching force of a clasp 1, for example provided a pair of pins whose diameter varies greatly 17 is less to that of a clasp 1 provided with a pair of pins whose diameter varies weakly 18. Using pins with small variation in diameter 18, it is possible to obtain a "Male" or "Sport" model bracelet, whose snap strength is superior to a "Woman" model, made with pins with large variations in diameter.

Il va de soi, que l'utilisation d'une ou de plusieures goupilles de diamètre variable 17,18 n'est pas limitée à un fermoir 1 selon le deuxième mode d'exécution d'un dispositif de verrouillage 4. L'utilisation est aussi possible avec un fermoir 1 selon le premier mode d'exécution d'un dispositif de verrouillage 4.It goes without saying that the use of one or more diameter pins variable 17.18 is not limited to a clasp 1 according to the second embodiment a locking device 4. The use is also possible with a clasp 1 according to the first embodiment of a locking device 4.

Les forces ou pressions de fermeture ne sont pas non seulement réglables par les goupilles de diamètre variable 17,18 mais par d'autres moyens de variation. Un autre moyen de réglage est la force de résistance des éléments de verrouillage 14,14' agissant sur le couvercle de sécurité 5 lors de sa fermeture sur le dispositif de verrouillage 4. Selon une autre caractéristique de l'invention, l'orientation des éléments de verrouillages 14,14' dans l'espace 23 du deuxième mode d'exécution d'un dispositif de verrouillage 4 peut être ajusté. A titre d'exemple, les éléments de verrouillages 14,14' peuvent être tournés de 180° dans l'espace 23 conçu symètriques dans le dispositif de verrouillage 4, permettant ainsi une variation de la distance entre les portions droites 14.4,14.4' des éléments de verrouillage 14,14' et la charnière 10. Les portions droites et rigides 14.4,14.4' des éléments de verrouillage 14,14' forment un axe de résistance sensiblement perpendiculaire au plan de fermeture du couvercle de sécurité 5. La force de résistance de la portion rigide 14.4,14.4' agissant sur le couvercle de sécurité 5 augmente ou diminue selon la grandeur de la distance entre la charnière 10 et l'axe de résistance. En tournant les éléments de verrouillage 14,14' dans l'espace 23, on augmente ou on diminue la force de résistance à la fermeture du couvercle de sécurité 5. Cest-à-dire, le changement de l'orientation des éléments de verrouillage 14,14' dans l'espace 23 selon figure 6a, permet de modifier la force engendrée par la fermeture du couvercle de sécurité 5. La force résultant de la fermeture du dispositif de verrouillage 4 n'est pas modifiée. Il est ainsi possible à l'utilisateur, d'ajuster la force de fermeture de sécurité du fermoir 1 librement et rapidement, sans avoir recours à un spécialiste, en fonction de ses activités quotidiennes ou de loisirs.The closing forces or pressures are not only adjustable by the pins of variable diameter 17.18 but by other means of variation. Another means of adjustment is the force of resistance of the locking elements 14,14 'acting on the cover of security 5 when it is closed on the locking device 4. According to another characteristic of the invention, the orientation of the locking elements 14, 14 ′ in the space 23 of the second embodiment of a locking device 4 can be adjusted. By way of example, the locking elements 14, 14 ′ can be turned by 180 ° in the space 23 designed to be symmetrical in the locking device 4, thus allowing a variation of the distance between the straight portions 14.4,14.4 'of the locking elements 14,14' and the hinge 10. The portions straight and rigid 14.4,14.4 'of the locking elements 14,14' form an axis of resistance substantially perpendicular to the closing plane of the cover 5. The resistance force of the rigid portion 14.4,14.4 'acting on the safety cover 5 increases or decreases according to the magnitude of the distance between the hinge 10 and the resistance axis. By turning the elements of locking 14,14 'in space 23, we increase or we decreases the resistance force when the cover is closed security 5. That is, changing the orientation of the locking elements 14.14 ′ in space 23 according to FIG. 6a, makes it possible to modify the force generated by closing the safety cover 5. The force resulting from the closure of the locking device 4 is not changed. he is thus possible for the user, to adjust the security closing force of the clasp 1 freely and quickly, without requiring a specialist, depending daily or leisure activities.

Les éléments visibles de la fermeture du fermoir sont de préférence métalliques, ils sont par exemple réalisés en acier inox et/ou en or. Selon une caractéristique de l'invention, et en se référant à la description selon les figures 1a, 1b, 2, 6a, 6b et 7, le plot de verrouillage 6 est monté sur une lame inférieure 3 du fermoir, de préférence, par soudage ou par vissage. D'autres techniques de connexion sont bien sûr possibles. Vu la haute précision demandée pour un actionnement facile et répété du fermoir, et vu les difficultés techniques lors du traitement des matériaux choisis (diminution, de dureté lors d'un soudage, déformation asymétrique lors d'un soudage), il s'est avéré comme avantageux d'utiliser un soudage pour fixer un plot de verrouillage 6 en or sur une lame inférieure 3 de fermoir en or et d'utiliser un vissage (vis 19) pour fixer un plot de verrouillage 6 en acier inox sur une lame inférieure de fermoir en acier inox. Il est possible d'envisager d'autres moyens de fixation pour d'autres matériaux de base, par exemple la thermofusion pour des matériaux synthétiques thermofusibles, etc.The visible elements of the closure of the clasp are preferably metallic, they are for example made of stainless steel and / or gold. According to a characteristic of the invention, and with reference to the description according to FIGS. 1a, 1b, 2, 6a, 6b and 7, the locking pin 6 is mounted on a lower blade 3 of the clasp, preferably by welding or screwing. Other techniques of course are possible. Given the high precision required for easy and repeated actuation of the clasp, and given the technical difficulties during the treatment of the chosen materials (reduction, hardness during welding, asymmetric deformation during welding), it has proven to be advantageous to use a welding to fix a locking pin 6 in gold on a bottom blade 3 of gold clasp and use a screw (screw 19) to fix a stainless steel locking pin 6 on a lower clasp blade stainless steel. It is possible to envisage other fixing means for other basic materials, for example example thermofusion for hot melt synthetic materials, etc.

Claims (11)

  1. Watchstrap clasp comprising two articulated arms (3, 11) and a double locking effect afforded, on the one hand, by a locking device (4, 6) comprising elements secured to the said respective articulated arms (3, 11) and shaped to engage with one another following pressure exerted between these two arms and, on the other hand, by a safety cover (5) shaped to engage with catching means following a second pressure exerted between it and the said articulated arms (3, 11) in engagement with each other, characterized in that the said locking device comprises, on the one hand, a locking lug (6) and, on the other hand, elastic means (14) for, first of all, engaging with this locking lug (6) and then with the said safety cover (5), the forces exerted on the said elastic means (14) following their engagement with the said locking lug (6) and with the said safety cover (5) adding together.
  2. Clasp according to Claim 1, characterized in that a locking device (4) has at least one locking piston (14, 14') able to move with clearance along an axis (AA') under the effect of the closure force applying this locking piston against the locking lug (6).
  3. Clasp according to Claim 1, characterized in that one of the said locking elements (14, 14') in the form of a self-centring elastic clip that can be compressed/extended along an axis of contact (AA') under the effect of the closure force, exerts, on the locking lug (6), a force which tends to keep the said locking element (14, 14') engaged with the locking lug (6).
  4. Clasp according to Claim 1, characterized in that at least one variable-diameter pin (17, 18) with different flexibility properties and/or diameters allows at least one of the said locking elements (14, 14') to be given some clearance so as to reduce the effective force exerted on the locking lug (6).
  5. Clasp according to Claim 2, characterized in that one of the ends (14.1, 14.1') of the locking pistons (14, 14') project from the external walls of a case (4.0) of the locking device (4), which walls are adjacent to the safety cover (5), and in that the other ends (14.2, 14.2') of the locking pistons (14, 14') project from the internal walls of the case (4.0) of the locking device (4), which walls are adjacent to the locking lug (6).
  6. Clasp according to Claim 5, characterized in that elastic rings (21, 21', 21'', 21''') working in compression keep the locking pistons (14, 14') centred the said axis (AA') and in guide holes (14.0, 14.0') of the case (4.0), and in that once compressed under the effect of the said forces, they push the said locking pistons (14, 14') into notches (6.0, 6.0') of the locking lug (6).
  7. Clasp according to Claim 3, characterized in that the locking elements (14, 14') have the form of self-centring elastic clips housed in a space (23) of a case (4.0) of the locking device (4) and having straight and rigid portions (14.4, 14.4') projecting, on the one hand, from the external walls of this case (4.0), which walls are adjacent to the safety cover (5) and, on the other hand, from the internal walls of the case (4.0), which walls are adjacent to the locking lug (6).
  8. Clasp according to Claim 7, characterized in that the lateral walls (22, 22') of the safety cover (5) compress the elastic clips (14, 14') between notches (6.0, 6.0') of the locking lug (6) and notches (20, 20') of the safety cover (5).
  9. Clasp according to Claim 7, characterized in that the safety cover (5) can pivot about a transverse articulation axle (10), and in that the distance between the said straight and rigid portions (14.4, 14.4') of the elastic clips and the said articulation axle (10) is adjustable by rotating the elastic clips (14, 14') through 180° in the space (23) so as to increase (or decrease) the resistance of the safety cover (5) to closure onto the locking device (4).
  10. Clasp according to one of Claims 1 to 10, for watchstrap made of gold and/or stainless steel.
  11. Clasp according to one of Claims 1 to 10, characterized in that the locking lug (6) is mounted on the lower arm of this clasp (3) by welding or screwing.
EP96905653A 1995-04-04 1996-03-14 Watchstrap clasp Expired - Lifetime EP0833579B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH96295 1995-04-04
CH96295 1995-04-04
CH962/95 1995-04-04
PCT/CH1996/000096 WO1996031138A1 (en) 1995-04-04 1996-03-14 Watchstrap clasp

Publications (2)

Publication Number Publication Date
EP0833579A1 EP0833579A1 (en) 1998-04-08
EP0833579B1 true EP0833579B1 (en) 2002-08-14

Family

ID=4199243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96905653A Expired - Lifetime EP0833579B1 (en) 1995-04-04 1996-03-14 Watchstrap clasp

Country Status (6)

Country Link
US (1) US6073316A (en)
EP (1) EP0833579B1 (en)
AU (1) AU4936396A (en)
DE (1) DE69623019T2 (en)
HK (1) HK1005357A1 (en)
WO (1) WO1996031138A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH691160A5 (en) * 1996-08-27 2001-05-15 Rolex Montres Folding clasp.
DE19729903A1 (en) * 1997-07-12 1999-01-14 Jaeger Lecoultre Sa bracelet
EP1147721B1 (en) * 1999-05-13 2010-06-16 Citizen Holdings Co., Ltd. Buckle for a personal adornment band
JP3657882B2 (en) * 1999-05-21 2005-06-08 カルチェ アンテルナシオナール ベスローテンフェンノートチャップ Bracelet fasteners
JP3175603U (en) 2008-04-02 2012-05-24 ザ・スウォッチ・グループ・マネージメント・サービシイズ・エイ ジー Wristband
EP2233026B1 (en) * 2009-03-25 2012-06-20 Rolex S.A. Device and method for linking and locking two parts and ball bar
JP4793704B2 (en) * 2009-06-04 2011-10-12 カシオ計算機株式会社 Watch band mounting structure
US8789246B2 (en) * 2011-06-10 2014-07-29 Suunto Oy Asymmetric butterfly clasp
RU2465793C1 (en) * 2011-07-15 2012-11-10 Общество с ограниченной ответственностью "Константин Чайкин" Clasp of watch bracelet, watch bracelet with clasp and watch with bracelet with clasp
CN102613783A (en) * 2012-03-05 2012-08-01 陈其宗 Watchband buckle structure
KR102363641B1 (en) * 2015-01-14 2022-02-17 삼성전자주식회사 Wearable device
US9949537B2 (en) * 2015-03-06 2018-04-24 Apple Inc. Clasp mechanism for wrist-worn devices
US10722006B2 (en) 2016-12-05 2020-07-28 Rolex Sa Device for adjusting the length of a bracelet
EP3329796B1 (en) * 2016-12-05 2019-07-10 Rolex Sa Device for adjusting the comfort of the length of a bracelet
CN113303571B (en) * 2020-02-27 2023-02-10 华为技术有限公司 Coupling mechanism and wearable equipment

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543933A (en) * 1945-09-20 1951-03-06 Pommier Henry Detachable fastener
US2532840A (en) * 1948-02-03 1950-12-05 Kreisler Mfg Corp Jacques Folding extension device
GB661609A (en) * 1949-05-09 1951-11-21 Ami Cornu Improvements in and relating to a clasp for a bracelet
FR2547998B1 (en) * 1983-07-01 1987-11-20 Berard Serge SECURITY CLASP
CH666165A5 (en) * 1985-04-03 1988-07-15 Ebel Sa Safety concealed fastener for bracelet - has two hinged arms fitting together and held closed by bridge clipped over arms and bracelet
CH674447A5 (en) * 1987-11-19 1990-06-15 G Et F Chatelain S A
CH671499A5 (en) * 1988-10-26 1989-09-15 Celinor S A Fastener for bracelet with two articulated elements - elements being locked together by elastically deformable projection on one engaging in hole in other
FR2675351B1 (en) * 1991-04-19 1994-12-30 Maier FOLDING CLASP.
GB2268217B (en) * 1992-05-29 1995-06-07 Ming Fung Metal Manufacturing Bracelet
FR2735335B1 (en) * 1995-06-15 1997-08-01 Smh Management Services Ag FASTENER BUCKLE CLASP
TW564699U (en) * 1996-11-06 2003-12-01 Smh Man Services Ag Clasp with unfolding buckle

Also Published As

Publication number Publication date
HK1005357A1 (en) 1999-01-08
US6073316A (en) 2000-06-13
DE69623019T2 (en) 2003-07-03
AU4936396A (en) 1996-10-23
DE69623019D1 (en) 2002-09-19
EP0833579A1 (en) 1998-04-08
WO1996031138A1 (en) 1996-10-10

Similar Documents

Publication Publication Date Title
EP0833579B1 (en) Watchstrap clasp
EP1836917B1 (en) Length adjustable wristband
EP0914049B1 (en) Clasp with unfolding arms
EP0661938B1 (en) Unfolding buckle-type clasp for a bracelet
EP0134595A1 (en) Ski boot
EP1731053A1 (en) Non-stretchable link bracelet
FR2849355A1 (en) Bracelet fixing device for watch, has sliding body with spring that exerts pressure on crimping base and on bearing surface to oppose displacement that is caused when push button is activated for retracting ankles
CH644505A5 (en) CLASP FOR ADJUSTING THE LENGTH OF A BRACELET.
EP0855866B1 (en) Clasp with button
EP3329796B1 (en) Device for adjusting the comfort of the length of a bracelet
CH705058B1 (en) Clasp for e.g. rigid strap of wristwatch, has blocking tooth engaged in one of notches of toothed rack so as to define length of strap according to position of tooth engaged with notch, and magnets and/or spring to maintain tooth in notch
EP3941300B1 (en) Clasp for a watchstrap or bracelet
CH689931A5 (en) Clasp for watch bracelet
EP1785784A2 (en) Device for fixing a watch bracelet
EP1075198B1 (en) Bracelet
FR2469732A1 (en) Spectacle frame with one arm of hinge fixed to bush - is slidable against spring on metal core in hollow space inside hinged side of frame
EP0867132B1 (en) Automatic closing device for watch bands
WO2023170128A1 (en) Clasp with folding buckle
EP1464245A1 (en) Fastener with folding buckle
CH719481A2 (en) DEPLOYANT CLASP.
FR2825244A1 (en) Folding closure for watch bracelet has push buttons on base for catches engaging ends of pivoting closure arms
FR2710503A1 (en) Adjustable clamping device for watch bracelets (straps)
CH690519A5 (en) Wrist watch bracelet fitting includes rotating element enabling bracelet pin to be removed without special tools for spring compression
CH714497B1 (en) Clasp for bracelet.
CH690952A5 (en) Bracelet, esp for wristwatch, has links threaded on cable(s) and end link equipped with friction stop

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

17P Request for examination filed

Effective date: 19971220

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB LI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MONTRES ROLEX SA

17Q First examination report despatched

Effective date: 20010619

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

RTI1 Title (correction)

Free format text: WATCHSTRAP CLASP

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB LI

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: MOINAS & SAVOYE SA

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69623019

Country of ref document: DE

Date of ref document: 20020919

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20021028

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: 20030515

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

Ref country code: GB

Payment date: 20050225

Year of fee payment: 10

Ref country code: DE

Payment date: 20050225

Year of fee payment: 10

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

Ref country code: CH

Payment date: 20050323

Year of fee payment: 10

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

Ref country code: FR

Payment date: 20050325

Year of fee payment: 10

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

Ref country code: GB

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

Effective date: 20060314

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: 20060331

Ref country code: CH

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

Effective date: 20060331

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

Ref country code: DE

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

Effective date: 20061003

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20060314

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20061130

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: 20060331