EP3669693A1 - Clasp and attachment system - Google Patents

Clasp and attachment system Download PDF

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Publication number
EP3669693A1
EP3669693A1 EP18215267.8A EP18215267A EP3669693A1 EP 3669693 A1 EP3669693 A1 EP 3669693A1 EP 18215267 A EP18215267 A EP 18215267A EP 3669693 A1 EP3669693 A1 EP 3669693A1
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EP
European Patent Office
Prior art keywords
clasp
bar
locking element
pin
bracelet
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
EP18215267.8A
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German (de)
French (fr)
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EP3669693B1 (en
Inventor
Eric Le Gall
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.)
Patek Philippe SA Geneve
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Patek Philippe SA Geneve
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.)
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Publication date
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Priority to EP18215267.8A priority Critical patent/EP3669693B1/en
Publication of EP3669693A1 publication Critical patent/EP3669693A1/en
Application granted granted Critical
Publication of EP3669693B1 publication Critical patent/EP3669693B1/en
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Anticipated expiration legal-status Critical

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    • 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
    • A44C5/185—Attachment of fasteners to straps or chains
    • 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 a clasp for a bracelet, in particular for a watch strap and a fastening system for such a clasp.
  • An object of the present invention is to provide a clasp comprising a system for attaching to a strand of bracelet at least partially remedying the aforementioned drawbacks.
  • the invention provides a bracelet clasp comprising a system for attaching to a bracelet strand, said fastening system comprising a body, a bar intended to be assembled to said first bracelet strand and a locking element, the body comprising a support designed to receive the bar, the whole being arranged so that the blocking element can, when the bar is received in the support, pivot relative to the body so as to couple with the bar to hold it axially in position.
  • said bracelet strand can be made of any material known to those skilled in the art for making bracelets.
  • the invention also relates to a wristwatch comprising such a clasp and a fastening system for such a clasp.
  • the clasp according to the invention makes it possible to simply and reversibly fix a strand of bracelet. It has the advantage of having no screws and does not require any tools to move from the locked position to the unlocked position or vice versa.
  • a clasp 100 for a bracelet comprises a fastening system 1, this fastening system 1 allowing a strand 20 of the bracelet to be connected in a simple and reversible manner to the clasp 100.
  • the attachment system 1 comprises a body 2 comprising two tongues 3a, 3b parallel, separated by a distance d1, each of them comprising a circular bore 4a, 4b.
  • the holes 4a, 4b are aligned and designed to be crossed by a cylindrical bar 5 which will carry the bracelet strand 20.
  • a first end of the strap strand 20 comprises a tube-shaped orifice intended to receive the bar 5.
  • the other end (not shown) of the strap strand 20 is for its part intended to wear a watch to form a watch- bracelet.
  • the bracelet strand 20 extends along an axis X.
  • the body 2 typically extends along an axis perpendicular to this axis X.
  • the bar 5 is also perpendicular to the X axis.
  • the tongues 3a, 3b extend in the direction of the X axis.
  • the bar 5 has a groove (or groove) 6 whose width typically corresponds to the distance d1 previously defined, this groove 6 being provided for positioning in the space provided between the tongues 3a, 3b when the bar 5 is received in the holes 4a, 4b of the tongues 3a, 3b, as illustrated in Figures 4 and 5 .
  • the body 2 also carries, between the two tongues 3a, 3b, a locking member 7, a part 8a of which forms a hook.
  • This locking member 7 is typically pivotally mounted on a pin 10, fixed in the body 2, as illustrated in figures 3 and 4 . For this, it has a hole 9 through which said pin 10. Thus, it pivots about an axis of (virtual) rotation A1 coincident with the longitudinal axis of pin 10 (illustrated in figures 2 and 4 ) and perpendicular to the X axis.
  • the thickness of the locking element 7 is slightly less than the predefined distance d1 so that it can pivot freely between the tongues 3a, 3b without rubbing against them and so that it can enter the groove 6
  • a blocking member 7 will typically be chosen having a thickness less than the value d1 but greater than 60% of d1, preferably greater than 70%, preferably greater than 80%, more preferably greater than 90% of d1.
  • the hook 8a can, by simple pivoting of the locking member 7, come to couple with the bar 5, at the level of the groove 6, to maintain the bar 5 axially in position, that is to say in the direction of the axis A1, transversely with respect to the axis X of the bracelet strand 20.
  • the groove 6 participates in the axial maintenance of the bar 5 in position by forming stops for the hook 8a.
  • the pin 10 is typically inserted frictionally in a cylindrical hole 11 passing through the body 2 right through, in the direction of its length.
  • the first end of the pin 10 inserted in the cylindrical hole 11 typically comes through a sleeve 12 which will itself be inserted in the hole 11, to stabilize the whole.
  • the sleeve 12 is typically tightened on the pin 10.
  • the locking member 7 could be pivotally mounted relative to the body 2 by other means.
  • the coupling of the bar 5 with the locking member 7 is reversible so that the locking member 7 can easily pivot and return to its raised position to unlock the bar 5, typically to change the strap strand 20 for example .
  • the coupling of the locking member 7 and the bar 5 is possible thanks to an elastic deformation of the pin 10.
  • the locking member 7 when the locking member 7 is pivoted counterclockwise from its illustrated position to the figure 6 , its part 8b abuts against the bar 5 at the level of the groove 6.
  • the force exerted by the user to couple the blocking member 7 and the bar 5 causes the elastic deformation of the pin 10 which allows a slight recoil of the blocking member 7 and the passage of part 8b under the bar 5, as illustrated in the figure 7 .
  • the pin 10 then tends to return to its rest position and exerts an elastic restoring force holding the part 8b and the hook 8a of the locking member 7 against the bar 5, in the groove 6.
  • the locking member 7 and the bar 5 are here coupled by elastic interlocking.
  • Elastic interlocking is a method of assembly in which certain elements are elastically deformed during assembly. After assembly, the nested elements can no longer be separated except to elastically deform one or more elements again. Said elastically deformable elements during elastic nesting are typically one or more of the nested elements and / or one or more element (s) cooperating with the nested elements.
  • the pin 10 will deform elastically again during the uncoupling of the locking member 7 and the bar 5.
  • the part 8a of the hook-shaped locking member 7 is elastically deformable.
  • the internal surface of the hook 8a can comprise a portion in an arc of a circle whose radius of curvature is less than that of the groove 6, the hook 8a will then have to deform elastically in order to be fixed on the groove 6 of the bar 5 and again to disengage from the bar 5.
  • the radius of curvature of the interior surface of the hook 8a could be greater than the radius of the groove 6.
  • the length of the cord which joins the two ends of the arc of a circle defining the interior surface of the hook 8a would advantageously be less than the diameter of the groove 6 so that the hook 8a should deform elastically so as to snap around the groove 6.
  • the hook 8a could resume its initial shape which would greatly limit friction likely to be exerted between the bar 5 and the hook 8a.
  • the groove 6 forming stops for the hook 8a would be advantageous for maintaining the bar 5 axially.
  • the part 8a of the locking element 7 could also not be elastically deformable. In this case, at least the part of the bar 5 corresponding to the groove 6 should be elastically deformable to allow the elastic interlocking of the locking element 7 with the bar 5.
  • the clasp 100 is a folding clasp with blades comprising a base blade 13, at the ends of which are articulated a first 14 and a second 15 pivoting blades, which can be folded down on the base blade 13.
  • the free end of the first pivoting blade 14 is assembled to the attachment system 1 by means of a hinge.
  • Said hinge typically comprises a connecting rod 21 pivoted by means of pins in holes 16a, 16b produced respectively in protuberances or ears 17a, 17b secured to the body 2, these holes 16a, 16b forming pivot bearings for this rod 21.
  • the pin 10 for fixing the locking element 7 or the body 2 could be secured to the free end of the first pivoting blade 14 and the connecting rod 21 would then no longer be necessary.
  • the free end of the second blade 15 is provided with second attachment means comprising a cover 18 carrying a stud 19 intended to engage in a hole among a series of holes that has a second strand called "adjustable strand" of a bracelet to maintain said strand and adjust its length.
  • a clasp 200 according to a second embodiment of the invention comprises a simple loop 101 carrying a pin 102 and a fastening system 1 as described above.
  • the fastening system 1 is assembled to the rest of the clasp 200 by means of a hinged system.
  • the loop 101 could typically be secured to the body 2 of the attachment system 1.
  • the clasp according to the invention as well as its attachment system make it possible to simply and reversibly fix a strand of bracelet. They have the advantage of having no screws and do not require any tools to move from the locked position to the unlocked position or vice versa.
  • the tongues 3a, 3b could also have a shape different from that illustrated and be replaced by any other support suitable for receiving the strip 5, said support typically comprising a housing intended to receive the strip 5.
  • the method of fixing the locking element 7 illustrated is not limiting and the locking element 7 could be maintained on the body 2 and made suitable for pivot freely relative to the body 2 between an unlocked position and a locked position by other means.
  • the clasp according to the invention could be a clasp other than a folding clasp with blades or a buckle and pin clasp.
  • the bar 5 may not include a groove 6, in which case the maintenance of the bar 5 in its axial position should only be ensured by sufficient friction with the locking element 7, the groove 6 no longer playing the stop role.
  • the dimensions of the bar 5 and of the locking element 7 should then be such that, when they are coupled, there is sufficient friction to maintain the bar 5 in its axial position.

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Abstract

L'invention concerne un fermoir (100 ; 200) pour bracelet comprenant un système d'attache (1) à un brin (20) de bracelet, ledit système d'attache (1) comprenant un corps (2), une barrette (5) destinée à être assemblée audit premier brin de bracelet et un élément de blocage (7). Le corps (2) comprend un support (3) conçu pour recevoir la barrette (5). Le tout est agencé de sorte que l'élément de blocage (7) puisse, lorsque la barrette (5) est reçue dans le support (3), pivoter par rapport au corps (2) de manière à s'accoupler avec la barrette (5) pour la maintenir axialement en position.L'invention concerne également une montre-bracelet comportant un tel fermoir (100 ; 200) ainsi qu'un système d'attache (1) pour un tel fermoir (100 ; 200).The invention relates to a clasp (100; 200) for a bracelet comprising a system for attaching (1) to a strand (20) of a bracelet, said system for attaching (1) comprising a body (2), a bar (5). ) intended to be assembled to said first bracelet strand and a blocking element (7). The body (2) comprises a support (3) designed to receive the bar (5). The whole is arranged so that the locking element (7) can, when the bar (5) is received in the support (3), pivot relative to the body (2) so as to couple with the bar ( 5) to maintain it axially in position. The invention also relates to a wristwatch comprising such a clasp (100; 200) as well as a fastening system (1) for such a clasp (100; 200).

Description

La présente invention concerne un fermoir pour bracelet, en particulier pour bracelet de montre et un système d'attache pour un tel fermoir.The present invention relates to a clasp for a bracelet, in particular for a watch strap and a fastening system for such a clasp.

On connait par la demande de brevet CH 712 040 A2 un fermoir déployant à lames pour bracelet souple, dont une première des lames est munie de premiers moyens d'attache à un premier brin dit « brin fixe » du bracelet, lesdits moyens d'attache comprenant une barrette tenue au moyen d'une vis dans une biellette articulée à l'extrémité libre de ladite lame ; et dont une seconde des lames est munie de seconds moyens d'attache pour la fixation à un deuxième brin dit « brin réglable » du bracelet pour maintenir ledit bracelet et régler sa longueur. Ce type de montage du brin fixe sur le fermoir comporte le risque de perdre ou détériorer la vis, de détériorer le taraudage réalisé dans la biellette du fermoir et nécessite un outillage.We know by patent application CH 712 040 A2 a folding clasp for flexible bracelet blades, one of the first blades of which is provided with first means of attachment to a first strand known as the “fixed strand” of the bracelet, said attachment means comprising a bar held by means of a screw in a link articulated at the free end of said blade; and a second of the blades of which is provided with second attachment means for fixing to a second strand known as an “adjustable strand” of the bracelet to maintain said bracelet and adjust its length. This type of mounting of the fixed strand on the clasp carries the risk of losing or damaging the screw, of damaging the tapping made in the clasp link and requires tools.

Un but de la présente invention est de proposer un fermoir comprenant un système d'attache à un brin de bracelet remédiant au moins en partie aux inconvénients précités.An object of the present invention is to provide a clasp comprising a system for attaching to a strand of bracelet at least partially remedying the aforementioned drawbacks.

L'invention propose à cette fin un fermoir pour bracelet comprenant un système d'attache à un brin de bracelet, ledit système d'attache comprenant un corps, une barrette destinée à être assemblée audit premier brin de bracelet et un élément de blocage, le corps comprenant un support conçu pour recevoir la barrette, le tout étant agencé de sorte que l'élément de blocage puisse, lorsque la barrette est reçue dans le support, pivoter par rapport au corps de manière à s'accoupler avec la barrette pour la maintenir axialement en position.To this end, the invention provides a bracelet clasp comprising a system for attaching to a bracelet strand, said fastening system comprising a body, a bar intended to be assembled to said first bracelet strand and a locking element, the body comprising a support designed to receive the bar, the whole being arranged so that the blocking element can, when the bar is received in the support, pivot relative to the body so as to couple with the bar to hold it axially in position.

Dans le cadre de la présente invention, ledit brin de bracelet peut être réalisé dans tout matériau connu de l'homme du métier pour réaliser des bracelets.In the context of the present invention, said bracelet strand can be made of any material known to those skilled in the art for making bracelets.

L'invention concerne également une montre-bracelet comportant un tel fermoir ainsi qu'un système d'attache pour un tel fermoir.The invention also relates to a wristwatch comprising such a clasp and a fastening system for such a clasp.

Le fermoir selon l'invention permet de fixer simplement et de manière réversible un brin de bracelet. Il présente l'avantage de ne comporter aucune vis et ne nécessite aucun outillage pour passer de la position verrouillée à la position déverrouillée ou inversement.The clasp according to the invention makes it possible to simply and reversibly fix a strand of bracelet. It has the advantage of having no screws and does not require any tools to move from the locked position to the unlocked position or vice versa.

D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description détaillée suivante faite en référence aux dessins annexés dans lesquels :

  • La figure 1 illustre un fermoir selon un premier mode de réalisation de l'invention, ledit fermoir comprenant un système d'attache à un brin de bracelet et étant en position ouverte ;
  • la figure 2 est une vue en perspective de dessus du système d'attache représenté à la figure 1 ;
  • la figure 3 est une vue éclatée de dessous du système d'attache représenté à la figure 1 ;
  • la figure 4 est une vue en coupe longitudinale du système d'attache illustré à la figure 1 ;
  • la figure 5 est une vue de face du système d'attache illustré à la figure 1 ;
  • la figure 6 est une vue en coupe transversale du système d'attache illustré à la figure 1 dans une position « déverrouillée » ;
  • la figure 7 est une vue en coupe transversale du système d'attache illustré à la figure 1 dans une position « verrouillée ;
  • la figure 8 est une vue en perspective de la coupe transversale du système d'attache illustré à la figure 7 dans ladite position « verrouillée » ;
  • la figure 9 illustre un fermoir selon un second mode de réalisation l'invention, ledit fermoir comprenant un système d'attache à un brin de bracelet tel que celui représenté aux figures 2 à 8.
Other characteristics and advantages of the present invention will appear on reading the following detailed description made with reference to the accompanying drawings in which:
  • The figure 1 illustrates a clasp according to a first embodiment of the invention, said clasp comprising a system for attaching to a strand of bracelet and being in the open position;
  • the figure 2 is a perspective view from above of the fastening system shown in figure 1 ;
  • the figure 3 is an exploded view from below of the fastening system shown in figure 1 ;
  • the figure 4 is a view in longitudinal section of the fastening system illustrated in figure 1 ;
  • the figure 5 is a front view of the fastening system illustrated in figure 1 ;
  • the figure 6 is a cross-sectional view of the fastening system illustrated in figure 1 in an "unlocked"position;
  • the figure 7 is a cross-sectional view of the fastening system illustrated in figure 1 in a "locked"position;
  • the figure 8 is a perspective view of the cross section of the fastening system illustrated in figure 7 in said "locked"position;
  • the figure 9 illustrates a clasp according to a second embodiment of the invention, said clasp comprising a system for attaching to a strand of bracelet such as that shown in figures 2 to 8 .

En référence aux figures 1 à 8, un fermoir 100 pour bracelet selon un premier mode de réalisation particulier de l'invention comprend un système d'attache 1, ce système d'attache 1 permettant de relier de manière simple et réversible un brin 20 de bracelet au fermoir 100.With reference to Figures 1 to 8 , a clasp 100 for a bracelet according to a first particular embodiment of the invention comprises a fastening system 1, this fastening system 1 allowing a strand 20 of the bracelet to be connected in a simple and reversible manner to the clasp 100.

Le système d'attache 1 comprend un corps 2 comprenant deux languettes 3a, 3b parallèles, séparées d'une distance d1, chacune d'elles comprenant un perçage 4a, 4b circulaire. Les perçages 4a, 4b sont alignés et conçus pour être traversés par une barrette 5 cylindrique qui portera le brin de bracelet 20. Dans l'exemple illustré à la figure 1, une première extrémité du brin de bracelet 20 comprend un orifice en forme de tube destiné à recevoir la barrette 5. L'autre extrémité (non représentée) du brin de bracelet 20 est quant à elle destinée à porter une montre pour former une montre-bracelet.The attachment system 1 comprises a body 2 comprising two tongues 3a, 3b parallel, separated by a distance d1, each of them comprising a circular bore 4a, 4b. The holes 4a, 4b are aligned and designed to be crossed by a cylindrical bar 5 which will carry the bracelet strand 20. In the example illustrated in figure 1 , a first end of the strap strand 20 comprises a tube-shaped orifice intended to receive the bar 5. The other end (not shown) of the strap strand 20 is for its part intended to wear a watch to form a watch- bracelet.

Comme illustré à la figure 1, le brin de bracelet 20 s'étend selon un axe X. Le corps 2 s'étend typiquement selon un axe perpendiculaire à cet axe X. Lorsqu'elle est positionnée dans les perçages 4a, 4b des languettes 3a, 3b, la barrette 5 est également perpendiculaire à l'axe X. Les languettes 3a, 3b s'étendent quant à elles dans la direction de l'axe X.As illustrated in figure 1 , the bracelet strand 20 extends along an axis X. The body 2 typically extends along an axis perpendicular to this axis X. When it is positioned in the holes 4a, 4b of the tongues 3a, 3b, the bar 5 is also perpendicular to the X axis. The tongues 3a, 3b extend in the direction of the X axis.

Comme illustré aux figures 3 à 5, la barrette 5 comporte une gorge (ou saignée) 6 dont la largeur correspond typiquement à la distance d1 précédemment définie, cette gorge 6 étant prévue pour se positionner dans l'espace ménagé entre les languettes 3a, 3b lorsque la barrette 5 est reçue dans les perçages 4a, 4b des languettes 3a, 3b, comme illustré aux figures 4 et 5.As illustrated in figures 3 to 5 , the bar 5 has a groove (or groove) 6 whose width typically corresponds to the distance d1 previously defined, this groove 6 being provided for positioning in the space provided between the tongues 3a, 3b when the bar 5 is received in the holes 4a, 4b of the tongues 3a, 3b, as illustrated in Figures 4 and 5 .

Le corps 2 porte également, entre les deux languettes 3a, 3b, un organe de blocage 7 dont une partie 8a forme un crochet. Cet organe de blocage 7 est typiquement monté pivotant sur une goupille 10, fixée dans le corps 2, comme illustré aux figures 3 et 4. Pour cela, il comporte un trou 9 traversé par ladite goupille 10. Ainsi, il pivote autour d'un axe de rotation (virtuel) A1 confondu avec l'axe longitudinal de la goupille 10 (illustré aux figures 2 et 4) et perpendiculaire à l'axe X.The body 2 also carries, between the two tongues 3a, 3b, a locking member 7, a part 8a of which forms a hook. This locking member 7 is typically pivotally mounted on a pin 10, fixed in the body 2, as illustrated in figures 3 and 4 . For this, it has a hole 9 through which said pin 10. Thus, it pivots about an axis of (virtual) rotation A1 coincident with the longitudinal axis of pin 10 (illustrated in figures 2 and 4 ) and perpendicular to the X axis.

L'épaisseur de l'élément de blocage 7 est légèrement inférieure à la distance d1 prédéfinie de sorte qu'il peut pivoter librement entre les languettes 3a, 3b sans frotter contre elles et de manière à ce qu'il puisse entrer dans la gorge 6. On choisira typiquement un organe de blocage 7 d'épaisseur inférieure à la valeur d1 mais supérieure à 60% de d1, de préférence supérieure à 70%, de préférence supérieure à 80%, de préférence encore supérieure à 90% de d1.The thickness of the locking element 7 is slightly less than the predefined distance d1 so that it can pivot freely between the tongues 3a, 3b without rubbing against them and so that it can enter the groove 6 A blocking member 7 will typically be chosen having a thickness less than the value d1 but greater than 60% of d1, preferably greater than 70%, preferably greater than 80%, more preferably greater than 90% of d1.

Lorsque la barrette 5 est reçue dans les perçages 4a, 4b des languettes 3a, 3b, le crochet 8a peut, par simple pivotement de l'organe de blocage 7, venir s'accoupler avec la barrette 5, au niveau de la gorge 6, pour maintenir la barrette 5 axialement en position, c'est-à-dire dans la direction de l'axe A1, transversalement par rapport à l'axe X du brin de bracelet 20. La gorge 6 participe au maintien axial de la barrette 5 en position en formant des butées pour le crochet 8a.When the bar 5 is received in the holes 4a, 4b of the tongues 3a, 3b, the hook 8a can, by simple pivoting of the locking member 7, come to couple with the bar 5, at the level of the groove 6, to maintain the bar 5 axially in position, that is to say in the direction of the axis A1, transversely with respect to the axis X of the bracelet strand 20. The groove 6 participates in the axial maintenance of the bar 5 in position by forming stops for the hook 8a.

Comme illustré aux figures 3 et 4, pour sa fixation dans le corps 2, la goupille 10 est typiquement insérée à friction dans un trou cylindrique 11 traversant le corps 2 de part en part, dans le sens de sa longueur. Lors du montage, la première extrémité de la goupille 10 insérée dans le trou cylindrique 11 vient typiquement traverser un manchon 12 qui sera lui-même inséré dans le trou 11, pour stabiliser le tout. Le manchon 12 est typiquement serré sur la goupille 10.As illustrated in figures 3 and 4 , for its fixing in the body 2, the pin 10 is typically inserted frictionally in a cylindrical hole 11 passing through the body 2 right through, in the direction of its length. During assembly, the first end of the pin 10 inserted in the cylindrical hole 11 typically comes through a sleeve 12 which will itself be inserted in the hole 11, to stabilize the whole. The sleeve 12 is typically tightened on the pin 10.

En variante, l'organe de blocage 7 pourrait être monté pivotant par rapport au corps 2 par d'autres moyens.Alternatively, the locking member 7 could be pivotally mounted relative to the body 2 by other means.

Une fois l'organe de blocage 7 fixé dans la gorge 6 de la barrette 5, on dit que l'élément de blocage 7 et le système d'attache 1 sont en position verrouillée car l'élément de blocage 7 maintient la barrette 5 assemblée au corps 2. Les figures 1, 2, 7 et 8 illustrent une telle position verrouillée.Once the blocking member 7 is fixed in the groove 6 of the bar 5, it is said that the blocking element 7 and the fastening system 1 are in the locked position because the blocking element 7 keeps the bar 5 assembled to the body 2. The figures 1 , 2 , 7 and 8 illustrate such a locked position.

L'accouplement de la barrette 5 avec l'organe de blocage 7 est réversible si bien que l'organe de blocage 7 peut aisément pivoter et revenir dans sa position levée pour déverrouiller la barrette 5, typiquement pour changer le brin de bracelet 20 par exemple.The coupling of the bar 5 with the locking member 7 is reversible so that the locking member 7 can easily pivot and return to its raised position to unlock the bar 5, typically to change the strap strand 20 for example .

Lorsque l'organe de blocage 7 est relevé, en dehors de la gorge 6, et laisse la barrette 5 libre d'entrer et sortir des perçages 4a, 4b réalisés dans les languettes 3a, 3b, comme illustré à la figure 6 par exemple, on dit que l'élément de blocage 7 et le système d'attache 1 sont en position déverrouillée.When the locking member 7 is raised, outside the groove 6, and leaves the bar 5 free to enter and exit the holes 4a, 4b produced in the tongues 3a, 3b, as illustrated in the figure 6 for example, it is said that the locking element 7 and the fastening system 1 are in the unlocked position.

Dans l'exemple illustré aux figures 1 à 8, l'accouplement de l'organe de blocage 7 et de la barrette 5 est possible grâce à une déformation élastique de la goupille 10. En effet, lorsque l'organe de blocage 7 est pivoté dans le sens antihoraire à partir de sa position illustrée à la figure 6, sa partie 8b vient en butée contre la barrette 5 au niveau de la gorge 6. La force exercée par l'utilisateur pour accoupler l'organe de blocage 7 et la barrette 5 entraîne la déformation élastique de la goupille 10 ce qui permet un léger recul de l'organe de blocage 7 et le passage de la partie 8b sous la barrette 5, comme illustré à la figure 7. La goupille 10 tend ensuite à reprendre sa position de repos et exerce une force de rappel élastique maintenant la partie 8b et le crochet 8a de l'organe de blocage 7 contre la barrette 5, dans la gorge 6. L'organe de blocage 7 et la barrette 5 sont ici accouplés par emboîtement élastique.In the example illustrated in Figures 1 to 8 , the coupling of the locking member 7 and the bar 5 is possible thanks to an elastic deformation of the pin 10. In fact, when the locking member 7 is pivoted counterclockwise from its illustrated position to the figure 6 , its part 8b abuts against the bar 5 at the level of the groove 6. The force exerted by the user to couple the blocking member 7 and the bar 5 causes the elastic deformation of the pin 10 which allows a slight recoil of the blocking member 7 and the passage of part 8b under the bar 5, as illustrated in the figure 7 . The pin 10 then tends to return to its rest position and exerts an elastic restoring force holding the part 8b and the hook 8a of the locking member 7 against the bar 5, in the groove 6. The locking member 7 and the bar 5 are here coupled by elastic interlocking.

L'emboîtement élastique est un mode d'assemblage dans lequel certains éléments sont déformés élastiquement lors de l'assemblage. Après l'assemblage, les éléments emboîtés ne peuvent plus être séparés sauf à déformer élastiquement à nouveau un ou plusieurs éléments. Lesdits éléments déformables élastiquement lors de l'emboîtement élastique sont typiquement un ou plusieurs des éléments emboîtés et/ou un ou plusieurs élément(s) coopérant avec les éléments emboîtés.Elastic interlocking is a method of assembly in which certain elements are elastically deformed during assembly. After assembly, the nested elements can no longer be separated except to elastically deform one or more elements again. Said elastically deformable elements during elastic nesting are typically one or more of the nested elements and / or one or more element (s) cooperating with the nested elements.

Dans l'exemple illustré aux figures 1 à 8, la goupille 10 se déformera élastiquement à nouveau lors du désaccouplement de l'organe de blocage 7 et de la barrette 5.In the example illustrated in Figures 1 to 8 , the pin 10 will deform elastically again during the uncoupling of the locking member 7 and the bar 5.

En variante, ce pourrait être la partie de l'organe de blocage 7 bordant le trou 9 qui serait déformable élastiquement, pour un fonctionnement similaire.Alternatively, it could be the part of the blocking member 7 bordering the hole 9 which would be elastically deformable, for similar operation.

Dans d'autres variantes, la partie 8a de l'organe de blocage 7 en forme de crochet est déformable élastiquement. Dans ce cas, comme dans l'exemple illustré, la surface intérieure du crochet 8a peut comprendre une portion en arc de cercle dont le rayon de courbure est inférieur à celui de la gorge 6, le crochet 8a devra alors se déformer élastiquement pour se fixer sur la gorge 6 de la barrette 5 et à nouveau pour se désaccoupler de la barrette 5.In other variants, the part 8a of the hook-shaped locking member 7 is elastically deformable. In this case, as in the example illustrated, the internal surface of the hook 8a can comprise a portion in an arc of a circle whose radius of curvature is less than that of the groove 6, the hook 8a will then have to deform elastically in order to be fixed on the groove 6 of the bar 5 and again to disengage from the bar 5.

En variante, le rayon de courbure de la surface intérieure du crochet 8a pourrait être supérieur au rayon de la gorge 6. Dans ce cas, la longueur de la corde qui rejoint les deux extrémités de l'arc de cercle définissant la surface intérieure du crochet 8a serait avantageusement inférieure au diamètre de la gorge 6 de sorte que le crochet 8a devrait se déformer élastiquement pour venir s'encliqueter autour de la gorge 6. Une fois en place, le crochet 8a pourrait reprendre sa forme initiale ce qui limiterait fortement les frottements susceptibles de s'exercer entre la barrette 5 et le crochet 8a. Dans un tel cas, la gorge 6 formant des butées pour le crochet 8a serait avantageuse pour le maintien de la barrette 5 axialement. Alternativement, la partie 8a de l'élément de blocage 7 pourrait elle aussi ne pas être déformable élastiquement. Dans ce cas, au moins la partie de la barrette 5 correspondant à la gorge 6 devrait être déformable élastiquement pour permettre l'emboîtement élastique de l'élément de blocage 7 avec la barrette 5.As a variant, the radius of curvature of the interior surface of the hook 8a could be greater than the radius of the groove 6. In this case, the length of the cord which joins the two ends of the arc of a circle defining the interior surface of the hook 8a would advantageously be less than the diameter of the groove 6 so that the hook 8a should deform elastically so as to snap around the groove 6. Once in place, the hook 8a could resume its initial shape which would greatly limit friction likely to be exerted between the bar 5 and the hook 8a. In such a case, the groove 6 forming stops for the hook 8a would be advantageous for maintaining the bar 5 axially. Alternatively, the part 8a of the locking element 7 could also not be elastically deformable. In this case, at least the part of the bar 5 corresponding to the groove 6 should be elastically deformable to allow the elastic interlocking of the locking element 7 with the bar 5.

Dans d'autres variantes, plusieurs des parties citées précédemment, notamment 8a, 8b, 6, 10, pourraient être déformables élastiquement.In other variants, several of the parts mentioned above, in particular 8a, 8b, 6, 10, could be elastically deformable.

Dans l'exemple illustré, le fermoir 100 est un fermoir déployant à lames comprenant une lame de base 13, aux extrémités de laquelle sont articulées une première 14 et une seconde 15 lames pivotantes, rabattables sur la lame de base 13.In the example illustrated, the clasp 100 is a folding clasp with blades comprising a base blade 13, at the ends of which are articulated a first 14 and a second 15 pivoting blades, which can be folded down on the base blade 13.

L'extrémité libre de la première lame pivotante 14 est assemblée au système d'attache 1 au moyen d'une charnière. Ladite charnière comprend typiquement une tige de liaison 21 pivotée à l'aide de tourillons dans des trous 16a, 16b réalisés respectivement dans des protubérances ou oreilles 17a, 17b solidaires du corps 2, ces trous 16a, 16b formant des paliers de pivotement pour cette tige 21.The free end of the first pivoting blade 14 is assembled to the attachment system 1 by means of a hinge. Said hinge typically comprises a connecting rod 21 pivoted by means of pins in holes 16a, 16b produced respectively in protuberances or ears 17a, 17b secured to the body 2, these holes 16a, 16b forming pivot bearings for this rod 21.

Alternativement, la goupille 10 de fixation de l'élément de blocage 7 ou le corps 2 pourrait être solidaire de l'extrémité libre de la première lame pivotante 14 et la tige de liaison 21 ne serait alors plus nécessaire.Alternatively, the pin 10 for fixing the locking element 7 or the body 2 could be secured to the free end of the first pivoting blade 14 and the connecting rod 21 would then no longer be necessary.

L'extrémité libre de la seconde lame 15 est munie de seconds moyens d'attache comprenant un couvercle 18 portant un téton 19 destiné à s'engager dans un trou parmi une série de trous que comporte un deuxième brin dit « brin réglable » d'un bracelet pour maintenir ledit brin et régler sa longueur.The free end of the second blade 15 is provided with second attachment means comprising a cover 18 carrying a stud 19 intended to engage in a hole among a series of holes that has a second strand called "adjustable strand" of a bracelet to maintain said strand and adjust its length.

En référence à la figure 9, un fermoir 200 selon un second mode de réalisation de l'invention comprend une simple boucle 101 portant un ardillon 102 et un système d'attache 1 tel que décrit précédemment.With reference to the figure 9 , a clasp 200 according to a second embodiment of the invention comprises a simple loop 101 carrying a pin 102 and a fastening system 1 as described above.

Dans l'exemple illustré à la figure 9, le système d'attache 1 est assemblé au reste du fermoir 200 par le biais d'un système à charnière. En variante, la boucle 101 pourrait typiquement être solidaire du corps 2 du système d'attache 1.In the example illustrated in figure 9 , the fastening system 1 is assembled to the rest of the clasp 200 by means of a hinged system. As a variant, the loop 101 could typically be secured to the body 2 of the attachment system 1.

Quel que soit le mode de réalisation de l'invention, le fermoir selon l'invention ainsi que son système d'attache permettent de fixer simplement et de manière réversible un brin de bracelet. Ils présentent l'avantage de ne comporter aucune vis et ne nécessitent aucun outillage pour passer de la position verrouillée à la position déverrouillée ou inversement.Whatever the embodiment of the invention, the clasp according to the invention as well as its attachment system make it possible to simply and reversibly fix a strand of bracelet. They have the advantage of having no screws and do not require any tools to move from the locked position to the unlocked position or vice versa.

Il apparaîtra clairement à l'homme du métier que la présente invention n'est en aucun cas limitée aux modes de réalisation présentés ci-dessus et illustrés dans les figures.It will be clear to those skilled in the art that the present invention is in no way limited to the embodiments presented above and illustrated in the figures.

Dans des variantes, il est évident que la forme des organes, par exemple celle de l'élément de blocage 7, peut varier à l'infini pour autant que leurs fonctions soient assurées.In variants, it is obvious that the shape of the members, for example that of the locking element 7, can vary infinitely as long as their functions are ensured.

Les languettes 3a, 3b pourraient également avoir une forme différente de celle illustrée et être remplacées par tout autre support convenable pour recevoir la barrette 5, ledit support comprenant typiquement un logement destiné à recevoir la barrette 5.The tongues 3a, 3b could also have a shape different from that illustrated and be replaced by any other support suitable for receiving the strip 5, said support typically comprising a housing intended to receive the strip 5.

En outre, le mode de fixation de l'élément de blocage 7 illustré (goupille 10 insérée dans un trou 11 du corps 2) n'est pas limitatif et l'élément de blocage 7 pourrait être maintenu sur le corps 2 et rendu apte à pivoter librement par rapport au corps 2 entre une position déverrouillée et une position verrouillée par d'autres moyens.In addition, the method of fixing the locking element 7 illustrated (pin 10 inserted in a hole 11 in the body 2) is not limiting and the locking element 7 could be maintained on the body 2 and made suitable for pivot freely relative to the body 2 between an unlocked position and a locked position by other means.

Dans des variantes, le fermoir selon l'invention pourrait être un fermoir autre qu'un fermoir déployant à lames ou qu'un fermoir à boucle et ardillon.In variants, the clasp according to the invention could be a clasp other than a folding clasp with blades or a buckle and pin clasp.

En outre, la barrette 5 pourrait ne pas comprendre de gorge 6, auquel cas le maintien de la barrette 5 dans sa position axiale ne devrait être assuré que par une friction suffisante avec l'élément de blocage 7, la gorge 6 ne jouant plus le rôle de butée. Les dimensions de la barrette 5 et de l'élément de blocage 7 devraient alors être telles que, lorsqu'elles sont accouplées, il existe une friction suffisante pour maintenir la barrette 5 dans sa position axiale.In addition, the bar 5 may not include a groove 6, in which case the maintenance of the bar 5 in its axial position should only be ensured by sufficient friction with the locking element 7, the groove 6 no longer playing the stop role. The dimensions of the bar 5 and of the locking element 7 should then be such that, when they are coupled, there is sufficient friction to maintain the bar 5 in its axial position.

Claims (15)

Fermoir (100 ; 200) pour bracelet comprenant un système d'attache (1) à un brin (20) de bracelet, ledit système d'attache (1) comprenant un corps (2), une barrette (5) destinée à être assemblée audit premier brin de bracelet et un élément de blocage (7), le corps (2) comprenant un support (3) conçu pour recevoir la barrette (5), le tout étant agencé de sorte que l'élément de blocage (7) puisse, lorsque la barrette (5) est reçue dans le support (3), pivoter par rapport au corps (2) de manière à s'accoupler avec la barrette (5) pour la maintenir axialement en position.Clasp (100; 200) for bracelet comprising a system of attachment (1) to a strand (20) of bracelet, said system of attachment (1) comprising a body (2), a bar (5) intended to be assembled to said first bracelet strand and a blocking element (7), the body (2) comprising a support (3) designed to receive the bar (5), the whole being arranged so that the blocking element (7) can , when the bar (5) is received in the support (3), pivot relative to the body (2) so as to couple with the bar (5) to hold it axially in position. Fermoir (100 ; 200) selon la revendication 1, caractérisé en ce que la barrette (5) comprend une gorge (6) et en ce qu'au moins une partie (8) de l'élément de blocage (7) vient s'insérer dans ladite gorge (6) lors de l'accouplement de l'élément de blocage (7) avec la barrette (5).Clasp (100; 200) according to claim 1, characterized in that the bar (5) comprises a groove (6) and in that at least a part (8) of the locking element (7) comes insert into said groove (6) when coupling the locking element (7) with the bar (5). Fermoir (100 ; 200) selon la revendication 1 ou 2, caractérisé en ce que ledit support (3) comprend au moins un perçage (4a, 4b) destiné à être traversé par la barrette (5).Clasp (100; 200) according to claim 1 or 2, characterized in that said support (3) comprises at least one bore (4a, 4b) intended to be crossed by the bar (5). Fermoir (100 ; 200) selon la revendication 3, caractérisé en ce que ledit support (3) comprend deux languettes (3a, 3b), chacune d'elles comprenant un perçage circulaire (4a, 4b), la barrette (5) étant destinée à traverser lesdits perçages (4a, 4b) pour son assemblage avec le corps (2).Clasp (100; 200) according to claim 3, characterized in that said support (3) comprises two tabs (3a, 3b), each of them comprising a circular bore (4a, 4b), the bar (5) being intended passing through said holes (4a, 4b) for its assembly with the body (2). Fermoir (100 ; 200) selon la revendication 4, caractérisé en ce que les deux languettes (3a, 3b) sont sensiblement parallèles et séparées d'une distance d1, l'élément de blocage (7) étant agencé entre lesdites languettes (3a, 3b).Clasp (100; 200) according to claim 4, characterized in that the two tongues (3a, 3b) are substantially parallel and separated by a distance d1, the locking element (7) being arranged between said tongues (3a, 3b). Fermoir (100 ; 200) selon l'une des revendications précédentes, caractérisé en ce que l'élément de blocage (7) est monté pivotant sur une goupille (10) solidaire du corps (2), ladite goupille (10) traversant un trou (9) de l'élément de blocage (7).Clasp (100; 200) according to one of the preceding claims, characterized in that the locking element (7) is pivotally mounted on a pin (10) secured to the body (2), said pin (10) passing through a hole (9) of the locking element (7). Fermoir (100 ; 200) selon la revendication 7, caractérisé en ce que, lorsque l'élément de blocage (7) est accouplé à la barrette (5), la barrette (5) et la goupille (10) sont sensiblement parallèles.Clasp (100; 200) according to claim 7, characterized in that , when the locking element (7) is coupled to the bar (5), the bar (5) and the pin (10) are substantially parallel. Fermoir (100 ; 200) selon l'une des revendications précédentes, caractérisé en ce que le corps (2) comprend une première et une seconde oreilles percées formant des paliers de pivotement pour une tige de liaison (21) articulée au reste du fermoir (100 ; 200) ou en ce que la goupille (10) est articulée au reste du fermoir (100 ; 200).Clasp (100; 200) according to one of the preceding claims, characterized in that the body (2) comprises first and second pierced ears forming pivot bearings for a connecting rod (21) articulated to the rest of the clasp ( 100; 200) or in that the pin (10) is articulated to the rest of the clasp (100; 200). Fermoir (100 ; 200) selon l'une des revendications précédentes, caractérisé en ce que l'accouplement de l'élément de blocage (7) avec ladite barrette (5) se fait par emboîtement élastique.Clasp (100; 200) according to one of the preceding claims, characterized in that the coupling of the locking element (7) with said bar (5) is effected by elastic interlocking. Fermoir (100 ; 200) selon la revendication 9, caractérisé en ce que l'accouplement de l'élément de blocage (7) avec ladite barrette (5) se fait par déformation élastique de ladite goupille (10).Clasp (100; 200) according to claim 9, characterized in that the coupling of the locking element (7) with said bar (5) is effected by elastic deformation of said pin (10). Fermoir (100) selon l'une des revendications précédentes, caractérisé en ce qu'il s'agit d'un fermoir déployant à lames (13, 14, 15).Clasp (100) according to one of the preceding claims, characterized in that it is a folding clasp with blades (13, 14, 15). Fermoir (100) selon la revendication 11, caractérisé en ce qu'il comprend une première lame (13) et une deuxième lame (14) articulée par l'une de ses extrémités sur ladite première lame (13) et articulée à son autre extrémité au corps (2) du système d'attache (1).Clasp (100) according to claim 11, characterized in that it comprises a first blade (13) and a second blade (14) articulated by one of its ends on said first blade (13) and articulated at its other end to the body (2) of the attachment system (1). Fermoir (200) selon l'une des revendications 1 à 10, caractérisé en ce qu'il s'agit d'un fermoir (200) à boucle et ardillon.Clasp (200) according to one of claims 1 to 10, characterized in that it is a clasp (200) with buckle and pin. Montre-bracelet comportant un fermoir (100 ; 200) selon l'une des revendications précédentes.Wrist watch comprising a clasp (100; 200) according to one of the preceding claims. Système d'attache (1) pour fermoir (100 ; 200) selon l'une des revendications 1 à 13.Fastening system (1) for clasp (100; 200) according to one of claims 1 to 13.
EP18215267.8A 2018-12-21 2018-12-21 Clasp and attachment system Active EP3669693B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670371A1 (en) * 1990-12-14 1992-06-19 Boucledor Sa Univeral clasp with unfolding buckle
WO2001072163A1 (en) * 2000-03-28 2001-10-04 Lesueur Sophie Raphaelle Marce Jewel serving as clasp
CH699188A2 (en) * 2008-07-21 2010-01-29 Richemont Int Sa Bracelet's standard strand fixing device for deployment clasp, has bracelet fixation axle whose ends are threaded in housings, and locked in service position for stop of central part of tie stick stirrup
CH712040A2 (en) 2016-01-15 2017-07-31 Patek Philippe Sa Geneve Clasp folding for bracelet.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670371A1 (en) * 1990-12-14 1992-06-19 Boucledor Sa Univeral clasp with unfolding buckle
WO2001072163A1 (en) * 2000-03-28 2001-10-04 Lesueur Sophie Raphaelle Marce Jewel serving as clasp
CH699188A2 (en) * 2008-07-21 2010-01-29 Richemont Int Sa Bracelet's standard strand fixing device for deployment clasp, has bracelet fixation axle whose ends are threaded in housings, and locked in service position for stop of central part of tie stick stirrup
CH712040A2 (en) 2016-01-15 2017-07-31 Patek Philippe Sa Geneve Clasp folding for bracelet.

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