EP0133068A1 - Security fastener - Google Patents
Security fastener Download PDFInfo
- Publication number
- EP0133068A1 EP0133068A1 EP84401345A EP84401345A EP0133068A1 EP 0133068 A1 EP0133068 A1 EP 0133068A1 EP 84401345 A EP84401345 A EP 84401345A EP 84401345 A EP84401345 A EP 84401345A EP 0133068 A1 EP0133068 A1 EP 0133068A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- extension
- recess
- male
- female
- female element
- 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.)
- Withdrawn
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Classifications
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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
- A44C5/20—Fasteners for straps, chains or the like for open straps, chains or the like
- A44C5/2052—Fasteners provided with at least one push-button acting parallel to the main plane of the fastener and perpendicularly to the direction of the fastening
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B11/00—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts
- A44B11/25—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts with two or more separable parts
- A44B11/2503—Safety buckles
- A44B11/2507—Safety buckles actuated by a push-button
- A44B11/2515—Safety buckles actuated by a push-button acting parallel to the main plane of the buckle and perpendicularly to the direction of the fastening action
- A44B11/2519—Safety buckles actuated by a push-button acting parallel to the main plane of the buckle and perpendicularly to the direction of the fastening action with two buttons acting in opposite directions
Definitions
- the present invention relates to a safety clasp, that is to say a clasp in two elements able to be assembled to each other and disassembled from each other at will, and each of which is intended to be attached to a part of an organ with a view to assembling it to another part of this organ or another organ.
- This type of clasp is commonly used for bracelets and in particular watch straps.
- a male element and a female element in which at least one central extension projecting from the front face of the male element can be engaged in a recess of complementary shape of the female element. and, in these known clasps, the retention of the extension of the male element in the recess of the female element is ensured by the engagement of at least one movable lug pushed by a spring means and carried by the extension of the male element, in cavities or windows provided to receive it in the recess of the female element.
- connection thus obtained between the two elements of this clasp is an elastic connection that an effort exerted in the direction of their separation is often able to overcome easily, even when each lug is movable transversely to the direction in which the extension of the element male must be moved to be engaged in or released from the recess of the female element.
- the extension of the male element is produced by folding a metal strip, one of the folds of which carries a movable lug resulting from a deformation or a puncture of this fold.
- This lug like its stop notch formed in the recess of the female element, is subject to rapid wear as a result of friction which occurs in particular during the elastic engagement of the extension of the male element. in the recess of the female element, and which makes them lose their effectiveness.
- the central extension of the male element carries at least two pistons each of which is pushed, by spring means, into a position in which it projects on the lateral face of the extension, while the recess of the female element has, housed in its two opposite lateral walls, two housings of which each is capable of containing the projecting part of one of the aforementioned pistons when the extension of the male element is engaged in the recess of the female element, a pusher accessible from outside the female element being associated to each of the housings of this female element to drive back and erase each piston in the extension of the male element and allow the extraction of this extension from the female element.
- each projecting part of each piston is constituted by a cylinder segment terminated by a hemispherical end and each housing intended to receive it in the recess of the female element is a cylinder with a diameter slightly greater than that of the piston and of appropriate length.
- connection obtained by the reciprocal engagement piston / cylinder is completely positive and can only be made free by the operation of the pushers and its behavior is absolutely not dependent on the degree of wear of the hemispherical ends of the pistons.
- the extension of the male element carries, at its free end, a piston ejector normally kept projecting by spring means and driven back in the retracted position, when the element is extended male in the recess of the female element, by the bottom wall of this recess.
- the bottom wall of the recess of the female element carries a spring means tending to oppose the engagement of the extension of the male element, so that this commitment has the effect of bandaging it.
- This spring means therefore plays the role of ejector during the disassembly of the two elements of this clasp.
- each housing formed in the recess of the female element to receive a locking piston of the male element is constituted by the bore of a ring of hard material, such as chrome steel or the like, reported in the aforementioned recess.
- each element can be attached to the end of a flexible link such as a watch strap or the like and, in this case, it has means of a known type of attachment to this link, such as, for example, a housing of flattened rectangular section capable of accommodating the considered end of the link and one of whose large walls carries at least one locking screw.
- each element of the clasp can be arranged in the body of the member to be assembled, such as a watch case.
- this clasp is composed of two elements intended to be assembled together, namely a male element (2) and a female element (3).
- the male element (2) comprises a body (2a) having, on its front face, a central extension (2b), while the female element (3) comprises a body (3a) whose front part (3b) forms a housing having a recess (3c) open on its front face and intended to receive and accommodate the central extension (2b) of the male element (2).
- the central extension (2b), of flattened rectangular section has two rounded end edges (2'b), and, on the other hand, the recess (3c) of the housing (3b) of the 'female element (3) has a cross section corresponding to that of the extension (2b) of the male element (2).
- each body (2a or 3a) of each of these two elements (2) and (3) has a housing, respectively (2'a) and (3'a), open towards the rear and intended to accommodate the corresponding end of the flexible link (4), clamping screws (5) carried by one of the large walls of the housing (2'a, 3'a) considered allowing the end of the link (4) to be blocked in this housing.
- the extension (2b) of the male element (2) carries, on each of its opposite lateral faces, a piston (6) movable transversely to the longitudinal axis (4a) of the bracelet (4).
- This piston (6) is mounted in a cylinder (7) fixed in the extension (2b), so as to be completely obliterated relative to the lateral face of this extension.
- a spring (8) compressed between the piston (6) and the bottom of the cylinder (7) tends to hold a part of the piston (6) projecting relative to the corresponding side face of the extension (2b).
- each piston (6) is composed of a cylindrical segment (6a) terminated by a hemispherical end (6b).
- Each of the side walls of the recess (3c) of the housing (3b) of the female element (3) has, in correspondence with the location ment of the pistons (6) after engagement of the extension (2b) of the male element in this recess (3c), a housing (9) of complementary shape to the projecting part of the piston (6) considered and capable of housing this piston after assembly of the two elements (2) and (3), as illustrated in FIG. 3.
- Each piston (6) therefore locks the assembly of the two elements (2) and (3) by its engagement in the housing ( 9) corresponding.
- each housing (9) is associated with a pusher (11 ) coaxial with the housing (9) considered and whose rod (11a) is axially movable in the housing (9), against the action of a spring, not shown in the drawing.
- one of the locking pistons (6) is shown in the locking position, with its pusher (11) at rest, while the other piston (6) is shown in the unlocked position, with its pusher (11) depressed.
- the side wall of the recess (3c) has, near its opening, a track (12) in the form of a ramp which cooperates with the hemispherical end of the corresponding piston (6) to cause, as illustrated in FIG. 2, its erasure when the extension (2b) is introduced into the recess (3c ).
- each housing (9) of the female element (3) is constituted by the bore of a ring (9a) made of hard material such as steel chrome or similar, and attached to the housing (3b) of the female element (3) to somehow constitute the side walls of the recess (3c).
- the central extension (2b) of the male element (2) carries, at its free end, an ejector piston ( 13), in the same shape as the locking pistons (6), mounted in a cylinder (14) housed in the end of the extension (2b), so as to be completely obliterated with respect to this end, a spring (15) compressed between the piston (13) and the bottom of the cylinder (14) normally holding the piston (13) projecting from the free end of the extension (2b).
- This clasp therefore has all the required safety conditions since in no case can it be inadvertently opened and therefore does not require the adaptation of any auxiliary safety chain.
- each element (2) and (3) of this clasp has been described as being fixable at the free end of a bracelet (4).
- each of these two elements could just as easily be arranged in a member to be assembled, such as, for example, in the case of a watch to which the strap would be attached directly.
- the means for ejecting the extension (2b) of the male element (2) from the recess (3c) of the female element (3) has been described as being a piston (13) carried by the free end of the extension (2b).
- means such as a leaf spring fixed to the bottom wall of the recess (3c), so that it is at least partially compressed at the end of engagement of the extension ( 2b) in the recess (3c).
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Abstract
Description
La présente invention concerne un fermoir de sécurité, c'est-à-dire un fermoir en deux éléments aptes à être assemblés l'un à l'autre et désassemblés l'un de l'autre à volonté, et dont chacun est destiné à être fixé à une partie d'un organe en vue de son assemblage à une autre partie de cet organe ou un autre organe.The present invention relates to a safety clasp, that is to say a clasp in two elements able to be assembled to each other and disassembled from each other at will, and each of which is intended to be attached to a part of an organ with a view to assembling it to another part of this organ or another organ.
Ce type de fermoir est couramment utilisé pour des bracelets et notamment des bracelets-montres.This type of clasp is commonly used for bracelets and in particular watch straps.
Dans les fermoirs connus de ce type, il est généralement prévu un élément mâle et un élément femelle dans lequel au moins un prolongement central en saillie sur la face antérieure de l'élément mâle est engageable dans un évidement de forme complémentaire de l'élément femelle et, dans ces fermoirs connus, la retenue du prolongement de l'élément mâle dans l'évidement de l'élément femelle est assurée par l'engagement d'au moins un ergot mobile poussé par un moyen à ressort et porté par le prolongement de l'élément mâle, dans des cavités ou fenêtres prévues pour le recevoir dans l'évidement de l'élément femelle.In known clasps of this type, there is generally provided a male element and a female element in which at least one central extension projecting from the front face of the male element can be engaged in a recess of complementary shape of the female element. and, in these known clasps, the retention of the extension of the male element in the recess of the female element is ensured by the engagement of at least one movable lug pushed by a spring means and carried by the extension of the male element, in cavities or windows provided to receive it in the recess of the female element.
La liaison ainsi obtenue entre les deux éléments de ce fermoir est une liaison élastique qu'un effort exercé dans le sens de leur séparation est souvent capable de vaincre facilement, même lorsque chaque ergot est mobile transversalement au sens dans lequel le prolongement de l'élément mâle doit être déplacé pour être engagé dans ou dégagé de l'évidement de l'élément femelle.The connection thus obtained between the two elements of this clasp is an elastic connection that an effort exerted in the direction of their separation is often able to overcome easily, even when each lug is movable transversely to the direction in which the extension of the element male must be moved to be engaged in or released from the recess of the female element.
Dans les fermoirs les plus connus de ce type, le prolongement de l'élément mâle est réalisé par pliage d'un feuillard métallique dont l'un des plis porte un ergot mobile résultant d'une déformation ou d'un crevé de ce pli.. Cet ergot, de même que son cran d'arrêt ménagé dans l'évidement de l'élément femelle, sont soumis à une usure rapide par suite des frottements qui se produisent notamment lors de l'engagement élastique du prolongement de l'élément mâle dans l'évidement de l'élément femelle, et qui leur fait perdre leur efficacité.In the most well-known clasps of this type, the extension of the male element is produced by folding a metal strip, one of the folds of which carries a movable lug resulting from a deformation or a puncture of this fold. This lug, like its stop notch formed in the recess of the female element, is subject to rapid wear as a result of friction which occurs in particular during the elastic engagement of the extension of the male element. in the recess of the female element, and which makes them lose their effectiveness.
En outre, la structure creuse de ces éléments ne leur confère pas la rigidité indispensable à leur fonction et limite les possibilités de variation de leur esthétique.In addition, the hollow structure of these elements does not give them the rigidity essential to their function and limits the possibilities of variation in their aesthetics.
La présente invention vise à remédier à ces inconvénients. A cet effet, dans le fermoir quelle concerne et qui est du type précité, le prolongement central de l'élément mâle porte au moins deux pistons dont chacun est poussé, par des moyens à ressort, dans une position dans laquelle il est en saillie sur la face latérale du prolongement, tandis que l'évidement de l'élément femelle présente, ménagés dans ses deux parois latérales opposées, deux logements dont chacun est apte à contenir la partie en saillie de l'un des pistons précités lorsque le prolongement de l'élément mâle est engagé dans l'évidement de l'élément femelle, un poussoir accessible de l'extérieur de l'élément femelle étant associé à chacun des logements de cet élément femelle pour refouler et effacer chaque piston dans le prolongement de l'élément mâle et permettre l'extraction de ce prolongement hors de l'élément femelle.The present invention aims to remedy these drawbacks. To this end, in the clasp which concerns and which is of the aforementioned type, the central extension of the male element carries at least two pistons each of which is pushed, by spring means, into a position in which it projects on the lateral face of the extension, while the recess of the female element has, housed in its two opposite lateral walls, two housings of which each is capable of containing the projecting part of one of the aforementioned pistons when the extension of the male element is engaged in the recess of the female element, a pusher accessible from outside the female element being associated to each of the housings of this female element to drive back and erase each piston in the extension of the male element and allow the extraction of this extension from the female element.
Avantageusement, chaque partie en saillie de chaque piston est constituée par un segment de cylindre terminé par une extrémité hémisphérique et chaque logement prévu pour le recevoir dans l'évidement de l'élément femelle est un cylindre de diamètre légèrement supérieur à celui du piston et de longueur appropriée.Advantageously, each projecting part of each piston is constituted by a cylinder segment terminated by a hemispherical end and each housing intended to receive it in the recess of the female element is a cylinder with a diameter slightly greater than that of the piston and of appropriate length.
La liaison obtenue par l'engagement réciproque piston/cylin- dre est totalement positive et ne peut être rendue libre que par la manoeuvre des poussoirs et sa tenue n'est absolument pas tributaire du degré d'usure des extrémités hémisphériques des pistons.The connection obtained by the reciprocal engagement piston / cylinder is completely positive and can only be made free by the operation of the pushers and its behavior is absolutely not dependent on the degree of wear of the hemispherical ends of the pistons.
' Par ailleurs, pour faciliter l'engagement du prolongement de l'élément mâle dans l'évidement de l'élément femelle, il est prévu, à l'entrée de l'évidement de l'élément femelle, et en correspondance de chaque logement de piston, une piste en forme de rampe destinée à agir sur l'extrémité hémisphérique du piston correspondant et provoquer automatiquement son effacement lors de l'introduction du prolongement de l'élément mâle dans l'évidement de l'élément femelle.'Furthermore, to facilitate the engagement of the extension of the male element in the recess of the female element, provision is made, at the entrance to the recess of the female element, and in correspondence with each housing. piston, a ramp-shaped track intended to act on the hemispherical end of the corresponding piston and automatically cause its erasure when the extension of the male element is introduced into the recess of the female element.
Ainsi, pour assembler les deux éléments de ce fermoir, il suffit de présenter le prolongement de l'élément mâle devant l'évidement de l'élément femelle et de l'y engager pour que les pistons qui servent à leur assemblage s'effacent d'abord automatiquement avant de pénétrer dans leurs logements.Thus, to assemble the two elements of this clasp, it suffices to present the extension of the male element in front of the recess of the female element and to engage it there so that the pistons which serve for their assembly fade out. 'automatically first before entering their homes.
Suivant une autre caractéristique intéressante de l'invention, pour faciliter le désassemblage des deux éléments de ce fermoir en n'exigeant de l'utilisateur que la manoeuvre des poussoirs, le prolongement de l'élément mâle porte, à son extrémité libre, un piston éjecteur normalement maintenu en saillie par des moyens à ressort et refoulé en position escamotée, lors de l'engagement du prolongement de l'élément mâle dans l'évdement de l'élément femelle, par la paroi de fond de cet évidement.According to another advantageous characteristic of the invention, to facilitate the disassembly of the two elements of this clasp by requiring the user only to operate the pushers, the extension of the male element carries, at its free end, a piston ejector normally kept projecting by spring means and driven back in the retracted position, when the element is extended male in the recess of the female element, by the bottom wall of this recess.
Il en résulte que lorsque les éléments du fermoir sont en position assemblée, les moyens à ressort agissant sur le poussoir éjecteur sont bandés et que dès l'effacement des poussoirs associés, le piston éjecteur provoque l'éjection du prolongement de l'élément mâle hors de l'évidement de l'élément femelle.It follows that when the elements of the clasp are in the assembled position, the spring means acting on the ejector plunger are bandaged and that as soon as the associated plungers are erased, the ejector piston causes the extension of the male element out of the recess of the female element.
Dans une variante d'exécution de cette caractéristique, la paroi de fond de l'évidement de l'élément femelle porte un moyen à ressort tendant à s'opposer à l'engagement du prolongement de l'élément mâle, de telle sorte que cet engagement a pour effet de le bander. Ce moyen à ressort joue donc le rôle d'éjecteur lors du désassemblage des deux éléments de ce fermoir.In an alternative embodiment of this characteristic, the bottom wall of the recess of the female element carries a spring means tending to oppose the engagement of the extension of the male element, so that this commitment has the effect of bandaging it. This spring means therefore plays the role of ejector during the disassembly of the two elements of this clasp.
Suivant encore une autre caractéristique de l'invention, tendant à améliorer la longévité de ce fermoir, chaque logement ménagé dans l'évidement de l'élément femelle pour recevoir un piston de verrouillage de l'élément mâle est constitué par l'alésage d'une bague en matériau dur, tel qu'en acier au chrome ou similaire, rapporté dans l'évidement précité.According to yet another characteristic of the invention, tending to improve the longevity of this clasp, each housing formed in the recess of the female element to receive a locking piston of the male element is constituted by the bore of a ring of hard material, such as chrome steel or the like, reported in the aforementioned recess.
' Naturellement, chaque élément peut être fixé à l'extrémité d'un lien souple tel qu'un bracelet de montre ou autre et, dans ce cas, il possède des moyens d'un type connu de fixation à ce lien, tel que, par exemple, un logement de section rectangulaire aplatie apte à loger l'extrémité considérée du lien et dont l'une des grandes parois porte au moins une vis de blocage.'Naturally, each element can be attached to the end of a flexible link such as a watch strap or the like and, in this case, it has means of a known type of attachment to this link, such as, for example, a housing of flattened rectangular section capable of accommodating the considered end of the link and one of whose large walls carries at least one locking screw.
Dans une variante d'exécution de l'invention, chaque élément du fermoir peut être aménagé dans le corps de l'organe à assembler, tel qu'un boîtier de montre.In an alternative embodiment of the invention, each element of the clasp can be arranged in the body of the member to be assembled, such as a watch case.
De toute façon, l'invention sera bien comprise à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, à titre d'exemple non limitatif, une forme d'exécution de ce fermoir :
- Figure 1 en est une vue en plan par-dessus, avec coupe partielle, montrant ses deux éléments avant assemblage, dans le cas de son application à la fermeture d'un bracelet ;
- Figures 2 et 3 sont des vues similaires à figure 1 montrant les deux éléments de ce fermoir, respectivement en cours d'assemblage, et après assemblage ;
- Figure 4 est une vue en coupe suivant 4-4 de figure 3, et
- Figure 5 est une vue en coupe suivant 5-5 de figure 3.
- Figure 1 is a plan view from above, with partial section, showing its two elements before assembly, in the case of its application to the closure of a bracelet;
- Figures 2 and 3 are views similar to Figure 1 showing the two elements of this clasp, respectively during assembly, and after assembly;
- Figure 4 is a sectional view along 4-4 of Figure 3, and
- Figure 5 is a sectional view along 5-5 of Figure 3.
Comme le montre notamment la figure 1, ce fermoir est composé de deux éléments destinés à être assemblés l'un à l'autre, à savoir un élément mâle (2) et un élément femelle (3). L'élément mâle (2) comprend un corps (2a) présentant, sur sa face antérieure, un prolongement central (2b), tandis que l'élément femelle (3) comprend un corps (3a) dont la partie antérieure (3b) forme un boîtier présentant un évidement (3c) ouvert sur sa face antérieure et destiné à recevoir et loger le prolongement central (2b) de l'élément mâle (2).As shown in particular in Figure 1, this clasp is composed of two elements intended to be assembled together, namely a male element (2) and a female element (3). The male element (2) comprises a body (2a) having, on its front face, a central extension (2b), while the female element (3) comprises a body (3a) whose front part (3b) forms a housing having a recess (3c) open on its front face and intended to receive and accommodate the central extension (2b) of the male element (2).
Pour cela, d'une part le prolongement central (2b), de section rectangulaire aplatie, présente deux arêtes terminales (2'b) arrondies, et, d'autre part, l'évidement (3c) du boîtier (3b) de l'élément femelle (3) présente une section transversale correspondant à celle du prolongement (2b) de l'élément mâle (2).For this, on the one hand the central extension (2b), of flattened rectangular section, has two rounded end edges (2'b), and, on the other hand, the recess (3c) of the housing (3b) of the 'female element (3) has a cross section corresponding to that of the extension (2b) of the male element (2).
Pour permettre sa fixation à une extrémité libre d'un lien (4), telle que l'extrémité d'un bracelet de montre ou similaire, chaque corps(2a ou 3a) de chacun de ces deux éléments (2) et (3) présente un logement, respectivement (2'a) et (3'a), ouvert vers l'arrière et destiné à loger l'extrémité correspondante du lien souple (4), des vis de serrage (5) portées par l'une des grandes parois du logement (2'a, 3'a) considéré permettant le blocage de l'extrémité du lien (4) dans ce logement.To allow its attachment to a free end of a link (4), such as the end of a watch strap or the like, each body (2a or 3a) of each of these two elements (2) and (3) has a housing, respectively (2'a) and (3'a), open towards the rear and intended to accommodate the corresponding end of the flexible link (4), clamping screws (5) carried by one of the large walls of the housing (2'a, 3'a) considered allowing the end of the link (4) to be blocked in this housing.
Le prolongement (2b) de l'élément mâle (2) porte, sur chacune de ses faces latérales opposées, un piston (6) mobile transversalement à l'axe longitudinal (4a) du bracelet (4). Ce piston (6) est monté dans un cylindre (7) fixé dans le prolongement (2b), de manière à être complètement effacé par rapport à la face latérale de ce prolongement. Un ressort (8) comprimé entre le piston (6) et le fond du cylindre (7) tend à maintenir une partie du piston (6) en saillie par rapport à la face latérale correspondante du prolongement (2b).The extension (2b) of the male element (2) carries, on each of its opposite lateral faces, a piston (6) movable transversely to the longitudinal axis (4a) of the bracelet (4). This piston (6) is mounted in a cylinder (7) fixed in the extension (2b), so as to be completely obliterated relative to the lateral face of this extension. A spring (8) compressed between the piston (6) and the bottom of the cylinder (7) tends to hold a part of the piston (6) projecting relative to the corresponding side face of the extension (2b).
Comme le montre notamment la figure 1, la partie en saillie de chaque piston (6) est composée d'un segment cylindrique (6a) terminé par une extrémité hémisphérique (6b).As shown in particular in Figure 1, the projecting part of each piston (6) is composed of a cylindrical segment (6a) terminated by a hemispherical end (6b).
Chacune des parois latérales de l'évidement (3c) du boîtier (3b) de l'élément femelle (3) présente, en correspondance de l'emplacement des pistons (6) après engagement du prolongement (2b) de l'élément mâle dans cet évidement (3c), un logement (9) de forme complémentaire de la partie en saillie du piston (6) considéré et apte à loger ce piston après assemblage des deux éléments (2) et (3), comme illustré sur la figure 3. Chaque piston (6) assure donc le verrouillage de l'assemblage des deux éléments (2) et (3) par son engagement dans le logement (9) correspondant.Each of the side walls of the recess (3c) of the housing (3b) of the female element (3) has, in correspondence with the location ment of the pistons (6) after engagement of the extension (2b) of the male element in this recess (3c), a housing (9) of complementary shape to the projecting part of the piston (6) considered and capable of housing this piston after assembly of the two elements (2) and (3), as illustrated in FIG. 3. Each piston (6) therefore locks the assembly of the two elements (2) and (3) by its engagement in the housing ( 9) corresponding.
Pour permettre le désassemblage des éléments (2) et (3) et, par conséquent, l'effacement de chaque piston (6) de la face latérale correspondante du prolongement (2b), à chaque logement (9) est associé un poussoir (11) coaxial au logement (9) considéré et dont la tige (11a) est mobile axialement dans le logement (9), à l'encontre de l'action d'un ressort, non représenté sur le dessin.To allow the disassembly of the elements (2) and (3) and, consequently, the erasure of each piston (6) of the corresponding side face of the extension (2b), each housing (9) is associated with a pusher (11 ) coaxial with the housing (9) considered and whose rod (11a) is axially movable in the housing (9), against the action of a spring, not shown in the drawing.
Pour faciliter la compréhension du fonctionnement de ce fermoir, sur la figure 3 l'un des pistons (6) de verrouillage est représenté en position de verrouillage, avec son poussoir (11) au repos, tandis que l'autre piston (6) est représenté en position de déverrouillage, avec son poussoir (11) enfoncé.To facilitate the understanding of the operation of this clasp, in FIG. 3, one of the locking pistons (6) is shown in the locking position, with its pusher (11) at rest, while the other piston (6) is shown in the unlocked position, with its pusher (11) depressed.
On voit donc qu'il est nécessaire d'actionner les deux poussoirs (11) pour déverrouiller le prolongement (2b) et permettre son extraction hors de l'évidement (3c) et, compte tenu de la partie cylindrique (6a) de chaque piston (6) en appui contre la paroi cylindrique du logement (9) correspondant, la liaison entre les deux éléments est absolument positive et le déverrouillage ne peut en aucun cas résulter d'un essai de traction tendant à séparer les éléments (2) et (3), ni être fortuit puisqu'il nécessite l'actionnement simultané des deux poussoirs (11).We therefore see that it is necessary to actuate the two pushers (11) to unlock the extension (2b) and allow its extraction out of the recess (3c) and, taking into account the cylindrical part (6a) of each piston (6) bearing against the cylindrical wall of the corresponding housing (9), the connection between the two elements is absolutely positive and the unlocking can in no case result from a tensile test tending to separate the elements (2) and ( 3), nor be fortuitous since it requires the simultaneous actuation of the two pushers (11).
Pour faciliter l'assemblage des éléments (2) et (3) sans que l'utilisateur n'ait à manoeuvrer les pistons de verrouillage (6), la paroi latérale de l'évidement (3c) présente, à proximité de son ouverture, une piste (12) en forme de rampe qui coopère avec l'extrémité hémisphérique du piston (6) correspondant pour provoquer, comme illustré sur la figure 2, son effacement lors de l'introduction du prolongement (2b) dans l'évidement (3c).To facilitate the assembly of elements (2) and (3) without the user having to operate the locking pistons (6), the side wall of the recess (3c) has, near its opening, a track (12) in the form of a ramp which cooperates with the hemispherical end of the corresponding piston (6) to cause, as illustrated in FIG. 2, its erasure when the extension (2b) is introduced into the recess (3c ).
Il faut noter d'ailleurs que pour améliorer la longévité de ce fermoir, chaque logement (9) de l'élément femelle (3) est constitué par l'alésage d'une bague (9a) en matériau dur tel qu'en acier au chrome ou similaire, et rapporté dans le boîtier (3b) de l'élément femelle (3) pour constituer en quelque sorte les parois latérales de l'évidement (3c).It should also be noted that to improve the longevity of this clasp, each housing (9) of the female element (3) is constituted by the bore of a ring (9a) made of hard material such as steel chrome or similar, and attached to the housing (3b) of the female element (3) to somehow constitute the side walls of the recess (3c).
Suivant encore une autre caractéristique de l'invention, pour faciliter le désassemblage des deux éléments (2) et (3), le prolongement central (2b) de l'élément mâle (2) porte, à son extrémité libre, un piston éjecteur (13), de même forme que les pistons de verrouillage (6), monté dans un cylindre (14) logé dans l'extrémité du prolongement (2b), de manière à être complètement effacé par rapport à cette extrémité, un ressort (15) comprimé entre le piston (13) et le fond du cylindre (14) maintenant normalement le piston (13) en saillie par rapport à l'extrémité libre du prolongement (2b).According to yet another characteristic of the invention, to facilitate the disassembly of the two elements (2) and (3), the central extension (2b) of the male element (2) carries, at its free end, an ejector piston ( 13), in the same shape as the locking pistons (6), mounted in a cylinder (14) housed in the end of the extension (2b), so as to be completely obliterated with respect to this end, a spring (15) compressed between the piston (13) and the bottom of the cylinder (14) normally holding the piston (13) projecting from the free end of the extension (2b).
Naturellement, après engagement du prolongement (2b) dans l'évidement (3c), le piston (13) se trouve enfoncé dans son cylindre (14), par suite de son appui contre la paroi de fond de l'évidement (3c) et à l'encontre de l'action du ressort (15) qui se trouve fortement comprimé.Naturally, after engagement of the extension (2b) in the recess (3c), the piston (13) is pressed into its cylinder (14), as a result of its support against the bottom wall of the recess (3c) and against the action of the spring (15) which is strongly compressed.
On comprendra aisément que, dès l'actionnement des poussoirs (11) pour provoquer l'effacement des pistons de verrouillage (6), par suite de la détente du ressort (15), le piston éjecteur (13) provoque automatiquement l'éjection du prolongement (2b) hors de l'évidement (3c).It will easily be understood that, as soon as the pushers (11) are actuated to cause the locking pistons (6) to be erased, due to the relaxation of the spring (15), the ejector piston (13) automatically causes the ejection of the extension (2b) out of the recess (3c).
Ce fermoir présente donc toutes les conditions requises de sécurité puisqu'en aucun cas son ouverture ne peut être intempestive et ne nécessite donc l'adaptation d'aucune chaîne auxiliaire de sécurité.This clasp therefore has all the required safety conditions since in no case can it be inadvertently opened and therefore does not require the adaptation of any auxiliary safety chain.
Dans l'exemple qui précède, chaque élément (2) et (3) de ce fermoir a été décrit comme étant fixable à l'extrémité libre d'un bracelet (4). Naturellement, chacun de ces deux éléments pourrait tout aussi bien être ménagé dans un organe à assembler, tel que, par exemple, dans le boîtier d'une montre auquel le bracelet serait fixé directement.In the above example, each element (2) and (3) of this clasp has been described as being fixable at the free end of a bracelet (4). Naturally, each of these two elements could just as easily be arranged in a member to be assembled, such as, for example, in the case of a watch to which the strap would be attached directly.
De même, le moyen d'éjection du prolongement (2b) de l'élément mâle (2) hors de l'évidement (3c) de l'élément femelle (3) a été décrit comme étant un piston (13) porté par l'extrémité libre du prolongement (2b). Naturellement, on pourrait tout aussi bien prévoir des moyens tels qu'une lame-ressort fixée à la paroi de fond de l'évidement (3c), de telle manière qu'elle soit au moins partiellement comprimée en fin d'engagement du prolongement (2b) dans l'évidement (3c).Likewise, the means for ejecting the extension (2b) of the male element (2) from the recess (3c) of the female element (3) has been described as being a piston (13) carried by the free end of the extension (2b). Naturally, one could just as easily provide means such as a leaf spring fixed to the bottom wall of the recess (3c), so that it is at least partially compressed at the end of engagement of the extension ( 2b) in the recess (3c).
Comme il va de soi et comme il ressort de ce qui précède, l'invention ne se limite pas à la seule forme d'exécution de ce fermoir de sécurité décrite ci-dessus à titre d'exemple non limitatif ; elle en embrasse, au contraire, toutes les variantes de réalisation.As is obvious and as is clear from the above, the invention is not limited to the sole embodiment of this safety clasp described above by way of nonlimiting example; on the contrary, it embraces all of its variant embodiments.
Claims (8)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8311372 | 1983-07-01 | ||
| FR8311372A FR2547998B1 (en) | 1983-07-01 | 1983-07-01 | SECURITY CLASP |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0133068A1 true EP0133068A1 (en) | 1985-02-13 |
Family
ID=9290631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP84401345A Withdrawn EP0133068A1 (en) | 1983-07-01 | 1984-06-26 | Security fastener |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0133068A1 (en) |
| FR (1) | FR2547998B1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2297236A (en) * | 1995-01-30 | 1996-07-31 | Dailywin Watch Products Mfg Lt | Releasable connector for a wrist-watch or bracelet |
| US5735629A (en) * | 1995-05-31 | 1998-04-07 | Seiko Kabushiki Kaisha | Band connection fitting |
| GB2327456A (en) * | 1997-04-09 | 1999-01-27 | Graham Christopher Nee | Locking device |
| FR2867661A1 (en) * | 2004-03-17 | 2005-09-23 | Percin Olivier De | Clasp for e.g. handbag, has locking mechanism with locking pins sliding in holes formed in male unit, spring arranged in hole between pins and unlocking pushrods sliding in corresponding holes formed in female unit |
| US7249398B2 (en) * | 2002-09-17 | 2007-07-31 | Richemont International S.A. | Device for fixing a watchband to a watch container |
| CN102407504A (en) * | 2011-11-26 | 2012-04-11 | 东南大学 | Detachable reciprocating spanner |
| CN107472188A (en) * | 2017-06-23 | 2017-12-15 | 安庆市枞江汽车部件制造有限公司 | A kind of double-pin type high safety car belt component |
| GB2553593A (en) * | 2016-09-22 | 2018-03-14 | Shri Shubham Hk Ltd | Improvements in customisable jewellery articles |
| CN109567320A (en) * | 2018-11-28 | 2019-04-05 | 湖北航天化学技术研究所 | A kind of eye-splice |
| CN112360850A (en) * | 2020-11-26 | 2021-02-12 | 广东理标信息科技有限公司 | Strong magnetic lock catch and mounting method |
| WO2022047090A3 (en) * | 2020-08-28 | 2022-04-07 | Edge-Works Manufacturing Company | Belt buckle |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6073316A (en) * | 1905-04-04 | 2000-06-13 | Montres Rolex S.A. | Watchstrap clasp |
| CN109498946A (en) * | 2018-12-13 | 2019-03-22 | 东莞市创捷电子科技有限公司 | A kind of high transparency medical face mask and effective PVC modified material and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE266807C (en) * | ||||
| FR803518A (en) * | 1936-03-17 | 1936-10-02 | Pery & Fils L | Bracelet closure device |
| FR986310A (en) * | 1949-05-18 | 1951-07-30 | Wristwatches or similar items | |
| US2580769A (en) * | 1948-12-22 | 1952-01-01 | Abbot A Harman | Bracelet clasp |
| US2629156A (en) * | 1950-07-06 | 1953-02-24 | Kamens Irving | Catch for necklaces |
| EP0065931A1 (en) * | 1981-05-19 | 1982-12-01 | Jesus Pagola | Device for the detachable joining of two pieces |
-
1983
- 1983-07-01 FR FR8311372A patent/FR2547998B1/en not_active Expired
-
1984
- 1984-06-26 EP EP84401345A patent/EP0133068A1/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE266807C (en) * | ||||
| FR803518A (en) * | 1936-03-17 | 1936-10-02 | Pery & Fils L | Bracelet closure device |
| US2580769A (en) * | 1948-12-22 | 1952-01-01 | Abbot A Harman | Bracelet clasp |
| FR986310A (en) * | 1949-05-18 | 1951-07-30 | Wristwatches or similar items | |
| US2629156A (en) * | 1950-07-06 | 1953-02-24 | Kamens Irving | Catch for necklaces |
| EP0065931A1 (en) * | 1981-05-19 | 1982-12-01 | Jesus Pagola | Device for the detachable joining of two pieces |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2297236A (en) * | 1995-01-30 | 1996-07-31 | Dailywin Watch Products Mfg Lt | Releasable connector for a wrist-watch or bracelet |
| US5735629A (en) * | 1995-05-31 | 1998-04-07 | Seiko Kabushiki Kaisha | Band connection fitting |
| ES2130938A1 (en) * | 1995-05-31 | 1999-07-01 | Hattori Seiko Co Ltd | Band connection fitting |
| GB2327456A (en) * | 1997-04-09 | 1999-01-27 | Graham Christopher Nee | Locking device |
| GB2327456B (en) * | 1997-04-09 | 2001-12-19 | Graham Christopher Nee | Locking devices |
| US7249398B2 (en) * | 2002-09-17 | 2007-07-31 | Richemont International S.A. | Device for fixing a watchband to a watch container |
| FR2867661A1 (en) * | 2004-03-17 | 2005-09-23 | Percin Olivier De | Clasp for e.g. handbag, has locking mechanism with locking pins sliding in holes formed in male unit, spring arranged in hole between pins and unlocking pushrods sliding in corresponding holes formed in female unit |
| CN102407504A (en) * | 2011-11-26 | 2012-04-11 | 东南大学 | Detachable reciprocating spanner |
| US11178942B2 (en) | 2016-09-22 | 2021-11-23 | Shri Shubham Limited | Customizable jewellery articles |
| GB2553593A (en) * | 2016-09-22 | 2018-03-14 | Shri Shubham Hk Ltd | Improvements in customisable jewellery articles |
| GB2553593B (en) * | 2016-09-22 | 2018-10-24 | Shri Shubham Hk Ltd | Improvements in customisable jewellery articles |
| CN107472188A (en) * | 2017-06-23 | 2017-12-15 | 安庆市枞江汽车部件制造有限公司 | A kind of double-pin type high safety car belt component |
| CN107472188B (en) * | 2017-06-23 | 2021-04-06 | 安庆市枞江汽车部件制造有限公司 | Double-pin type high-safety automobile safety belt assembly |
| CN109567320A (en) * | 2018-11-28 | 2019-04-05 | 湖北航天化学技术研究所 | A kind of eye-splice |
| WO2022047090A3 (en) * | 2020-08-28 | 2022-04-07 | Edge-Works Manufacturing Company | Belt buckle |
| US11771182B2 (en) | 2020-08-28 | 2023-10-03 | Edge-Works Manufacturing Company | Belt buckle |
| CN112360850A (en) * | 2020-11-26 | 2021-02-12 | 广东理标信息科技有限公司 | Strong magnetic lock catch and mounting method |
| CN112360850B (en) * | 2020-11-26 | 2021-07-30 | 广东桂荣永磁新材料科技有限公司 | Strong magnetic lock catch and mounting method |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2547998A1 (en) | 1985-01-04 |
| FR2547998B1 (en) | 1987-11-20 |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Designated state(s): AT CH DE GB IT LI |
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| 17P | Request for examination filed |
Effective date: 19850506 |
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| 17Q | First examination report despatched |
Effective date: 19860605 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
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