EP0006664A1 - Bracelet made of rigid links directly jointed with each other - Google Patents

Bracelet made of rigid links directly jointed with each other Download PDF

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Publication number
EP0006664A1
EP0006664A1 EP79200323A EP79200323A EP0006664A1 EP 0006664 A1 EP0006664 A1 EP 0006664A1 EP 79200323 A EP79200323 A EP 79200323A EP 79200323 A EP79200323 A EP 79200323A EP 0006664 A1 EP0006664 A1 EP 0006664A1
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EP
European Patent Office
Prior art keywords
links
articulation
link
bracelet
heads
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
EP79200323A
Other languages
German (de)
French (fr)
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EP0006664B1 (en
Inventor
Alain Wüthrich
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.)
METAUX PRECIEUX
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METAUX PRECIEUX
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CH700878A external-priority patent/CH623215A5/en
Priority claimed from CH17979A external-priority patent/CH627352A5/en
Application filed by METAUX PRECIEUX filed Critical METAUX PRECIEUX
Publication of EP0006664A1 publication Critical patent/EP0006664A1/en
Application granted granted Critical
Publication of EP0006664B1 publication Critical patent/EP0006664B1/en
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/02—Link constructions
    • A44C5/10—Link constructions not extensible
    • A44C5/102—Link constructions not extensible with links made of one piece with integral connecting means

Definitions

  • the subject of the present invention is a bracelet formed of rigid links directly articulated to each other and in which each articulation is formed by an articulation head limited by a surface in the shape of an arc of a cylinder, forming part of a link and by a housing. formed in the adjacent link, the articulation head being engaged in this housing on an arc of more than 180 °.
  • Bracelets of this kind are already known, executed in particular in the form of watch straps.
  • the links may consist of sections cut from a profile obtained for example by drawing. They are assembled by engagement of the articulation heads in the housings by a transverse relative displacement. The sections are then blocked with respect to one another, for example by crimping.
  • This technique makes it possible to produce bracelets of varied appearance by relatively simple means, the assembly work being reduced.
  • Patent CH 573 731 describes, for example, a bracelet of this kind in which the articulation heads project from the thickness of the link and engage in housings formed in the edge of the adjacent link.
  • a defect of bracelets of this kind is that when two adjacent links form an angle with respect to each other, a slit appears between them, which disturbs the aesthetic appearance of the bracelet and, on the other hand, promotes the introduction of dust or grime between the links.
  • the object of the present invention is to remedy these defects, by creating a bracelet of the kind mentioned which can be produced in the form of a gadroon or a bracelet with a small number of links.
  • the bracelet according to the invention is characterized in that the said housings are each limited by a cylinder arc lip which has an external face tangentially connecting to an external face homologous with another link.
  • the link of the bracelet shown in fig. l will preferably be produced by stretching a metal profile, the length of which may be as large as desired, then cutting this profile into sections of equal lengths or of different lengths.
  • the links can be made of steel, a copper alloy such as brass or nickel silver, a silver or gold alloy, etc. They can also be made of plastic, and in this case, they could be produced by molding or by extrusion of a profile and sectioning, as for a metal production.
  • the link in fig. 1 has a general shape in S. It comprises an articulation head 1 of cylindrical shape which constitutes one of the ends of the profile.
  • the cylindrical arc surface 2 which extends over 180 ° and limits the articulation head 1, is extended on one side by a surface portion 3 with an S-profile.
  • This surface portion includes in particular a zone 3a in an arc of a cylinder which is coaxial with the head 1.
  • this zone 3a is a portion of cylindrical surface whose axis is common to that of the surface 2.
  • this surface 3 extends a surface 4 which is also S-shaped and is connected to the surface 2.
  • the surfaces 3 and 4 thus delimit in the link of FIG. 1 a connection zone 5 of constant thickness and less than the diameter of the cylindrical head 1.
  • the connection zone 5 is extended by an attachment lip 6 limited by two coaxial cylindrical surfaces, ie an external surface 7 and an internal surface 8, these two surfaces connecting respectively to surface 3 and to surface 4.
  • connection zone 5 and of the hooking lip 6 is by construction equal to the difference between the radii of the portions of cylindrical surfaces 2 and 3a.
  • Fig. 2 shows how a certain number of links of the type of FIG. l can be assembled together to form a godron-type bracelet.
  • Each hooking lip 6 of a link is engaged between the articulation head 1 and the connection zone 5 of the adjacent link.
  • the cylindrical arc surface 7 of each hooking lip therefore connects tangentially to the surface S 3 of the adjacent link. This is what gives ne to the bracelet seen from its external side a look imitating that of a series of small cylinders joined to each other.
  • Fig. 3 shows an embodiment of a bracelet which is not of the godron type, but in which, on the contrary, attempts have been made to reduce the number of links by giving each of them the form of a plate.
  • Each link comprises along one of its edges a head 9 of cylindrical shape limited by a surface in the shape of a cylinder arch 10 extending over more than 180 °.
  • the head 9 is connected to the central zone 11 of the link by a connection zone 12 of thickness less than the diameter of the head 9, while along the other edge of the central zone 11, extends a lip of hooking 13 curved into a cylinder arc and delimiting a housing 14 having the dimensions of the head 9.
  • the cylindrical surface 10 of the head 9 is also extended on one side by an S-shaped surface 15 of which a part 15a is coaxial with the head 9.
  • the catching lip 13 is externally limited by a cylindrical arc surface 16 and internally by a surface 17 parallel to the surface 16. It can be seen, by considering the articulation between the links A and B of FIG. 3, that the surfaces 16 and 15a are of the same radius, as are the surfaces 10 and 17.
  • the lip 13 surrounds the articulation head 9 over more than 180 ° for example the internal surface 17 has a shape in cylinder arc at an angle of 225 °.
  • Figs. 4, 5 and 6 again show links of the type shown in FIG. 1.
  • the attachment lips of these links have an outer surface 18 (fig. 4) or 19 (fig. 5) or 20 (fig. 6) which is not a surface in the shape of a cylinder arch, but which is shaped so as to vary the aesthetics of the bracelet. It is dotted in the case of FIG. 4, which makes it possible to produce bracelets of the type called "godron-godron", while it forms a tubular rib in the case of FIG. 5 and an oval shape in FIG. 6.
  • FIG. 8 another embodiment of the bracelet according to the invention is seen.
  • This bracelet consists of links directly articulated to each other, but of two different types.
  • the links lOla, 102a, 103a, 104a are of the first type, that is to say with two hooking lips, while the intermediate links lOlb, 102b, 103b are links of the second type with two articulation heads .
  • the links of the first type each have a central part, hooking lips 105 which are parts of constant thickness, curved in an arc of a circle so as to delimit, with the sides 106 and 107 of the part 103, two shaped housings. cylindrical 108 and 109.
  • Type b links also include a central portion 110 and on either side of this central portion, articulation heads 111 and 112 of cylindrical shape, attached to the portion 110 by connecting zones 113.
  • the central portion 110 has an internal bead 114 which is limited on each side by a portion of surface in the shape of a cylinder arc, also coaxial with the corresponding articulation head and connected to this head by a delimiting surface which extends in the shape of an S and is connects to the cylindrical surface of the head.
  • the elements 110b, 102b and 103b are limited by planar surfaces 115, 116 which extend opposite the flanks 107 and 106 of the adjacent links 110a, 102a and which constitute with these flanks abutment surfaces.
  • the distance between the articulation heads 111 and 112 is twice the thickness of the fastening tabs 104 and 105, so that when the lips for fastening the links lOla and 102a are each engaged on one of the articulation heads 112 or III, their outer surfaces are contiguous.
  • Each of the links lOla and 102a can pivot around the axis of the articulation head 112 or 111 while the outer surfaces of the hooking lips remain in contact with each other and tangent to each other. other.
  • the links are symmetrical with respect to a median plane.
  • the relative position of the three links located at the right end and designated by 103a, 103b and 104a shows the minimum radius of curvature that the bracelet can take. Only the central surfaces of the hooking lip links 101a, 102a, 103a and 104a are visible from the outside. These are curved surfaces which join tangentially to the outer surfaces of the lips.
  • the manufacture and assembly of the links shown in fig. 8 can be produced exactly as described with regard to bracelets with identical links of the first embodiments.
  • These elements can also be made, either of plastic, or of a metal such as brass, nickel silver or even steel, or also of a precious metal such as gold, silver or their alloys.
  • the manufacturing method applied will be stretching.
  • these elements can be taken up on a lathe or a milling machine to machine the elements that will secure them in the direction of the axis of the heads. of articulation.
  • the links 117a, 117b, 117c and the links 118a, 118b are links with hooking lips curved in the shape of a cylinder arc, while the links 118 are links with articulation heads.
  • the attachment lips 119 and 120 of the link l17a have the same arrangement and the same shape as the attachment lips 104 and 105 of the link lOla while the two articulation heads 121 and 122 of the link 118a are arranged and arranged as the articulation heads 112 and 111 of the link lOlb.
  • the central part of the link 118a is strongly swollen and has a projection 123, the sides of which 124 and 125 are surfaces in the shape of an arc of a cylinder coaxial with the articulation heads 121 and 122 and situated at a distance from the lateral face of these heads articulation which is equal to the thickness of the attachment lips 119 and 120.
  • the maximum angle between the sides 127 and 128 of the link 118a and 129, 130 of each of the links 117a and 117b is produced when the hooking lip 120 or 119 is fully engaged in the notch or housing delimited by the sides 124 and 125 of link 118a.
  • the extreme position is obtained when the sides 127 and 129 are in contact with each other and when it is the same for the sides 128 and 130 of the parts 118a and 117a.
  • This relative position is achieved for the two links 118b and 117c, while there is the other extreme position with the links 117d, 117e and 118c.
  • the straps described can be watch straps.
  • the end links will be arranged to receive a bar for fixing to the horns of the box, or any other means of connection.
  • the bracelet can also be fitted with a clasp.
  • a bracelet is formed of links which have connecting surfaces arranged in such a way that the visible surfaces of the links are tangent to each other. No day appears between the links, whatever the relative position of these.

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  • Adornments (AREA)

Abstract

1. Bracelet having identical rigid links, each formed in one piece, connected to one another by hinges, characterized in that each hinge of two links, exhibiting an outside surface in the shape of an arc of a cylinder extending over more than 180 degrees and by a hooking lip (6 ; 13) in the shape of an arc of a cylinder, belonging to the other link, partially surrounding the hinge head, and in that a portion of the outside surface of each link is prolonged on the side of its hinge head by an S-shaped joining surface (3 ; 15), one part of which is coaxial with the hinge head and which extends tangentially to the outside face (7 ; 16) of the hooking lip of said other link.

Description

La présente invention a pour objet un bracelet formé de maillons rigides directement articulés les uns aux autres et dans lequel chaque articulation est formée par une tête d'articulation limitée par une surface en arc de cylindre, faisant partie d'un maillon et par un logement ménagé dans la maillon adjacent, la tête d'articulation étant engagée dans ce logement sur un arc de plus de 180°.The subject of the present invention is a bracelet formed of rigid links directly articulated to each other and in which each articulation is formed by an articulation head limited by a surface in the shape of an arc of a cylinder, forming part of a link and by a housing. formed in the adjacent link, the articulation head being engaged in this housing on an arc of more than 180 °.

On connaît déjà des bracelets de ce genre exécutés notamment sous forme de bracelets de montre. Les maillons peuvent être constitués de tronçons découpés dans un profilé obtenu par exemple par étirage. Ils sont assemblés par engagement des têtes d'articulation dans les logements par un déplacement relatif transversal. Les tronçons sont ensuite bloqués les uns par rapport aux autres par exemple par sertissage. Cette technique permet de réaliser des bracelets d'allure variée par des moyens relativement simples, les travaux d'assemblage étant réduits au minimum. Le brevet CH 573 731 décrit, par exemple, un bracelet de ce genre dans lequel les têtes d'articulation font saillie de l'épaisseur du maillon et s'engagent dans des logements ménagés dans la tranche du maillon adjacent. Un défaut des bracelets de ce genre est que lorsque deux maillons adjacents forment un angle l'un par rapport à l'autre, il apparaît une fente entre eux, ce qui perturbe l'aspect esthétique du bracelet et, d'autre part, favorise l'introduction de poussières ou de crasse entre les maillons.Bracelets of this kind are already known, executed in particular in the form of watch straps. The links may consist of sections cut from a profile obtained for example by drawing. They are assembled by engagement of the articulation heads in the housings by a transverse relative displacement. The sections are then blocked with respect to one another, for example by crimping. This technique makes it possible to produce bracelets of varied appearance by relatively simple means, the assembly work being reduced. at least. Patent CH 573 731 describes, for example, a bracelet of this kind in which the articulation heads project from the thickness of the link and engage in housings formed in the edge of the adjacent link. A defect of bracelets of this kind is that when two adjacent links form an angle with respect to each other, a slit appears between them, which disturbs the aesthetic appearance of the bracelet and, on the other hand, promotes the introduction of dust or grime between the links.

Parmi les différentes formes que l'on peut donner à des bracelets formés de maillons articulés, la forme dite "godron" présente une renommée particulière. Toutefois, pour qu'un bracelet du type godron ait vraiment l'allure requise, il est nécessaire que les différents maillons apparaissent comme des cylindres parfaits disposés tangentiellement les uns aux autres. Les bracelets à maillons articulés connus jusqu'à maintenant ne permettent en général pas de réaliser des bracelets de type godron parfaits. En effet, le rattachement des têtes d'articulation aux maillons devient toujours visible lorsque le bracelet est en position incurvée.Among the different forms that can be given to bracelets formed of articulated links, the so-called "godron" form has a particular reputation. However, for a godron type bracelet to really have the required appearance, it is necessary that the different links appear as perfect cylinders arranged tangentially to each other. The hinged link bracelets known up to now generally do not make perfect gadroon type bracelets. Indeed, the attachment of the articulation heads to the links always becomes visible when the bracelet is in the curved position.

Un autre défaut des bracelets à maillons articulés connus jusqu'à maintenant est que l'angle que peuvent prendre deux maillons adjacents l'un par rapport à l'autre est relativement limité, ce qui ne permet pas de réaliser des maillons ayant une certaine largeur et par conséquent de réduire le nombre des maillons constituant un bracelet. En effet, plus le nombre des maillons est réduit, plus l'angle entre deux maillons adjacents augmente. Pour un bracelet complet de vingt maillons, l'angle moyen sera de 180, tandis que pour un bracelet de dix maillons, il sera de 36°.Another shortcoming of hinged link bracelets known up to now is that the angle that two adjacent links can take with respect to each other is relatively limited, which does not allow links having a certain width to be produced. and therefore reduce the number of links constituting a bracelet. Indeed, the more the number of links is reduced, the more the angle between two adjacent links increases. For a full bracelet of twenty links, the average angle will be 180 , while for a bracelet of ten links, it will be 36 °.

Le but de la présente invention est de remédier à ces défauts, en créant un bracelet du genre mentionné susceptible d'être réalisé sous forme de godron ou de bracelet à petit nombre de maillons.The object of the present invention is to remedy these defects, by creating a bracelet of the kind mentioned which can be produced in the form of a gadroon or a bracelet with a small number of links.

Dans ce but, le bracelet selon l'invention est caractérisé en ce que les dits logements sont limités chacun par une lèvre en arc de cylindre qui présente une face externe se raccordant tangentiellement à une face externe homologue d'un autre maillon.For this purpose, the bracelet according to the invention is characterized in that the said housings are each limited by a cylinder arc lip which has an external face tangentially connecting to an external face homologous with another link.

On va décrire ci-après, à titre d'exemple, diverses formes d'exécution du bracelet selon l'invention en se référant au dessin annexé dont:

  • la fig. 1 est une vue en perspective d'un maillon d'une première forme d'exécution,
  • la fig. 2 une vue en coupe à plus petite échelle d'une partie d'un bracelet formé de maillons selon la fig. 1,
  • la fig. 3 est une vue deprofil de deux maillons assemblés appartenant à une seconde forme d'exécution de l'objet de l'invention,
  • les fig. 4, 5, 6 et 7 sont des vues analogues à celle de la fig. 3, mais correspondant à trois autres formes possibles d'exécution du bracelet décrites à titre d'exemple d'application des possibilités offertes par l'objet de l'invention, et
  • les fig. 8 et 9 sont des vues schématiques montrant le profil des éléments de deux autres formes d'exécution.
Various embodiments of the bracelet according to the invention will be described below, by way of example, with reference to the appended drawing, of which:
  • fig. 1 is a perspective view of a link of a first embodiment,
  • fig. 2 a sectional view on a smaller scale of a part of a bracelet formed of links according to FIG. 1,
  • fig. 3 is a profile view of two assembled links belonging to a second embodiment of the subject of the invention,
  • fig. 4, 5, 6 and 7 are views similar to that of FIG. 3, but corresponding to three other possible embodiments of the bracelet described by way of example of application of the possibilities offered by the object of the invention, and
  • fig. 8 and 9 are schematic views showing the profile of the elements of two other embodiments.

Le maillon du bracelet représenté à la fig. l sera de préférence réalisé par étirage d'un profilé métallique dont la longueur pourra être aussi grande qu'on le désire, puis sectionnement de ce profilé en tronçons d'égales longueurs ou de longueurs différentes. Les maillons peuvent être en acier, en un alliage cuivreux comme le laiton ou le maillechort, en alliage d'argent ou d'or, etc. Ils peuvent également être en matière plastique, et dans ce cas, ils pourraient être réalisés par moulage ou par extrusion d'un profilé et sectionnement, comme pour une réalisation en métal.The link of the bracelet shown in fig. l will preferably be produced by stretching a metal profile, the length of which may be as large as desired, then cutting this profile into sections of equal lengths or of different lengths. The links can be made of steel, a copper alloy such as brass or nickel silver, a silver or gold alloy, etc. They can also be made of plastic, and in this case, they could be produced by molding or by extrusion of a profile and sectioning, as for a metal production.

On voit que le maillon de la fig. 1 a une forme générale en S. Il comporte une tête d'articulation 1 de forme cylindrique qui constitue une des extrémités du profilé. La surface en arc de cylindre 2 qui s'étend sur plus de 1800 et limite la tête d'articulation 1, se prolonge d'un côté par une portion de surface 3 à profil en S. Cette portion de surface comporte notamment une zone 3a en arc de cylindre qui est coaxiale à la tête 1. En d'autres termes, cette zone 3a est une portion de surface cylindrique dont l'axe est commun à celui de la surface 2. A l'opposé de cette surface 3, s'étend une surface 4 qui est également à profil en S et se raccorde à la surface 2. Les surfaces 3 et 4 délimitent ainsi dans le maillon de la fig. 1 une zone de raccordement 5 d'épaisseur constante et inférieure au diamètre de la tête cylindrique 1. La zone de raccordement 5 se prolonge par une lèvre d'accrochage 6 limitée par deux surfaces cylindriques coaxiales, soit une surface externe 7 et une surface interne 8, ces deux surfaces se raccordant respectivement à la surface 3 et à la surface 4.We see that the link in fig. 1 has a general shape in S. It comprises an articulation head 1 of cylindrical shape which constitutes one of the ends of the profile. The cylindrical arc surface 2 which extends over 180 ° and limits the articulation head 1, is extended on one side by a surface portion 3 with an S-profile. This surface portion includes in particular a zone 3a in an arc of a cylinder which is coaxial with the head 1. In other words, this zone 3a is a portion of cylindrical surface whose axis is common to that of the surface 2. Opposite this surface 3, extends a surface 4 which is also S-shaped and is connected to the surface 2. The surfaces 3 and 4 thus delimit in the link of FIG. 1 a connection zone 5 of constant thickness and less than the diameter of the cylindrical head 1. The connection zone 5 is extended by an attachment lip 6 limited by two coaxial cylindrical surfaces, ie an external surface 7 and an internal surface 8, these two surfaces connecting respectively to surface 3 and to surface 4.

On notera encore que l'épaisseur de la zone de raccordement 5 et de la lèvre d'accrochage 6 est par construction égale à la différence entre les rayons des portions de surfaces cylindriques 2 et 3a.It will also be noted that the thickness of the connection zone 5 and of the hooking lip 6 is by construction equal to the difference between the radii of the portions of cylindrical surfaces 2 and 3a.

La fig. 2 montre comment un certain nombre de maillons du type de la fig. l peuvent être assemblés les uns aux autres pour constituer un bracelet de type godron. Chaque lèvre d'accrochage 6 d'un maillon est engagée entre la tête d'articulation 1 et la zone de raccordement 5 du maillon adjacent. La surface en arc de cylindre 7 de chaque lèvre d'accrochage se raccorde donc tangentiellement à la surfaceen S 3 du maillon adjacent. C'est ce qui donne au bracelet vu depuis son côté externe une allure imitant celle d'une série de petits cylindres accolés les uns aux autres.Fig. 2 shows how a certain number of links of the type of FIG. l can be assembled together to form a godron-type bracelet. Each hooking lip 6 of a link is engaged between the articulation head 1 and the connection zone 5 of the adjacent link. The cylindrical arc surface 7 of each hooking lip therefore connects tangentially to the surface S 3 of the adjacent link. This is what gives ne to the bracelet seen from its external side a look imitating that of a series of small cylinders joined to each other.

A la fig. 2, trois maillons A, B et C sont placés dans des positions où ils sont alignés dans une direction rectiligne, tandis que deux autres maillons D et E font un angle par rapport au maillon adjacent, de sorte que le bracelet enveloppe un cylindre F, ce cylindre étant celui qui présente le plus petit rayon que le bracelet peut encore envelopper. Ainsi, les positions relatives des maillons B et C, d'une part, et C et D, d'autre part, représentent l'angle maximum dont peut tourner chaque articulation. On voit que cet angle dépend de la forme de la surface 4. Il n'est donc pas conditionné par la nécessité de donner aux surfaces 2, 3 et 7 des dimensions concordantes, afin de garantir l'aspect du bracelet. L'angle en question peut facilement atteindre plus de 35°.In fig. 2, three links A, B and C are placed in positions where they are aligned in a rectilinear direction, while two other links D and E form an angle relative to the adjacent link, so that the bracelet envelops a cylinder F, this cylinder being the one with the smallest radius that the bracelet can still wrap. Thus, the relative positions of the links B and C, on the one hand, and C and D, on the other hand, represent the maximum angle by which each joint can rotate. It can be seen that this angle depends on the shape of the surface 4. It is therefore not conditioned by the need to give the surfaces 2, 3 and 7 corresponding dimensions, in order to guarantee the appearance of the bracelet. The angle in question can easily reach more than 35 °.

La fig. 3 représente une forme d'exécution d'un bracelet qui n'est pas de type godron, mais dans lequel, au contraire, on a cherché à réduire le nombre des maillons en donnant à chacun d'eux la forme d'une plaquette. Entre les maillons A et B, on retrouve un angle d'articulation de l'ordre de 350. Chaque maillon comporte le long d'un de ses bords une tête 9 de forme cylindrique limitée par une surface en arc de cylindre 10 s'étendant sur plus de 180°. La tête 9 est raccordée à la zone centrale 11 du maillon par une zone de raccordement 12 d'épaisseur inférieure au diamètre de la tête 9, tandis que le long de l'autre bord dela zone centrale 11, s'étend une lèvre d'accrochage 13 incurvée en arc de cylindre et délimitant un logement 14 ayant les dimensions de la tête 9. La surface cylindrique 10 de la tête 9 se prolonge également d'un côté par une surface en forme de S 15 dont une partie 15a est coaxiale à la tête 9. D'autre part, la lèvre d'accorchage 13 est limitée extérieurement par une surface en arc de cylindre 16 et intérieurement par une surface 17 parallèle à la surface 16. On voit, en considérant l'articulation entre les maillons A et B de la fig. 3, que les surfaces 16 et 15a sont de même rayon, de même que les surfaces 10 et 17. Bien entendu, la lèvre 13 entoure la tête d'articulation 9 sur plus de 180° par exemple la surface interne 17 a une forme en arc de cylindre sur un angle de 225°.Fig. 3 shows an embodiment of a bracelet which is not of the godron type, but in which, on the contrary, attempts have been made to reduce the number of links by giving each of them the form of a plate. Between the links A and B, there is an articulation angle of the order of 35 0 . Each link comprises along one of its edges a head 9 of cylindrical shape limited by a surface in the shape of a cylinder arch 10 extending over more than 180 °. The head 9 is connected to the central zone 11 of the link by a connection zone 12 of thickness less than the diameter of the head 9, while along the other edge of the central zone 11, extends a lip of hooking 13 curved into a cylinder arc and delimiting a housing 14 having the dimensions of the head 9. The cylindrical surface 10 of the head 9 is also extended on one side by an S-shaped surface 15 of which a part 15a is coaxial with the head 9. On the other hand, the catching lip 13 is externally limited by a cylindrical arc surface 16 and internally by a surface 17 parallel to the surface 16. It can be seen, by considering the articulation between the links A and B of FIG. 3, that the surfaces 16 and 15a are of the same radius, as are the surfaces 10 and 17. Of course, the lip 13 surrounds the articulation head 9 over more than 180 ° for example the internal surface 17 has a shape in cylinder arc at an angle of 225 °.

Les fig. 4, 5 et 6 montrent à nouveau des maillons du type représenté à la fig. 1. Les lèvres d'accrochage de ces maillons présentent une surface extérieure 18 (fig. 4) ou 19 (fig. 5) ou 20 (fig. 6) qui n'est pas une surface en arc de cylindre, mais qui est conformée de façon à varier l'esthétique du bracelet. Elle est godronnée dans le cas de la fig. 4, ce qui permet de réaliser des bracelets du type dénommé "godron-godron", tandis qu'elle forme une nervure tubulaire dans le cas de la fig. 5 et une forme d'ovale à la fig. 6.Figs. 4, 5 and 6 again show links of the type shown in FIG. 1. The attachment lips of these links have an outer surface 18 (fig. 4) or 19 (fig. 5) or 20 (fig. 6) which is not a surface in the shape of a cylinder arch, but which is shaped so as to vary the aesthetics of the bracelet. It is dotted in the case of FIG. 4, which makes it possible to produce bracelets of the type called "godron-godron", while it forms a tubular rib in the case of FIG. 5 and an oval shape in FIG. 6.

Dans le cas de la fig. 7, le principe d'accrochage des maillons reste le même, mais, l'angle de pivotement, dans un sens comme dans l'autre, est limité de par la géométrie des maillons. De plus, lorsque les maillons sont assemblés et que le bracelet ainsi formé est mis en position incurvée, il se crée un espace visible entre chaque maillon qui augmente sur la partie extérieure du bracelet et diminue sur la partie intérieure du bracelet, cela en rapport avec le degré de pivotement de chaque maillon. Cet effet se produit également quand le bracelet est incurvé dans l'autre sens.In the case of fig. 7, the principle of attachment of the links remains the same, but the pivoting angle, in one direction as in the other, is limited by the geometry of the links. In addition, when the links are assembled and the bracelet thus formed is placed in a curved position, a visible space is created between each link which increases on the external part of the bracelet and decreases on the internal part of the bracelet, this in relation to the degree of pivoting of each link. This effect also occurs when the bracelet is curved the other way.

A la fig. 3, on a également représenté en traits mixtes un autre profil qu'il serait possible de donner aux zones centrales 11 des maillons.In fig. 3, there is also shown in broken lines another profile which it would be possible to give to the central zones 11 of the links.

Il n'est pas non plus indispensable que tous les maillons soient identiques bien qu'une telle disposition facilite la fabrication en permettant de réaliser un bracelet complet avec un seul type de profilés. Ainsi, on peut varier l'aspect des bracelets en prévoyant des assemblages de maillons de différents types pourvus des lèvres d'accrochage et des têtes d'articulation décrites.It is not essential either that all the links are identical although such an arrangement facilitates manufacture by making it possible to make a bra complete with only one type of profiles. Thus, the appearance of the bracelets can be varied by providing assemblies of links of different types provided with the attachment lips and the articulation heads described.

A la fig. 8, on voit une autre forme d'exécution du bracelet selon l'invention. Ce bracelet se compose de maillons directement articulés les uns aux autres, mais de deux types différents. Les maillons lOla, 102a, 103a, 104a sont du premier type, c'est-à-dire à deux lèvres d'accrochage, tandis que les maillons intercalaires lOlb, 102b, 103b sont des maillons du second type à deux têtes d'articulation. Les maillons du premier type comportent chacun une partie centrale, des lèvres d'accrochage 105 qui sont des parties d'épaisseur constante, incurvées en arc de cercle de façon à délimiter, avec les flancs 106 et l07 de la partie 103 deux logements de forme cylindrique 108 et 109.In fig. 8, another embodiment of the bracelet according to the invention is seen. This bracelet consists of links directly articulated to each other, but of two different types. The links lOla, 102a, 103a, 104a are of the first type, that is to say with two hooking lips, while the intermediate links lOlb, 102b, 103b are links of the second type with two articulation heads . The links of the first type each have a central part, hooking lips 105 which are parts of constant thickness, curved in an arc of a circle so as to delimit, with the sides 106 and 107 of the part 103, two shaped housings. cylindrical 108 and 109.

Les maillons de type b comportent également une partie centrale 110 et de part et d'autre de cette partie centrale, des têtes d'articulation 111 et 112 de forme cylindrique, rattachées à la partie 110 par des zones de liaison 113. La partie centrale 110 comporte un bourrelet intérieur 114 qui est limité de chaque côté par une portion de surface en arc de cylindre, également coaxiale à la tête d'articulation correspondante et reliée à cette tête par une surface delimitation qui s'étend en forme de S et se raccorde à la surface cylindrique de la tête. Du côté extérieur, les éléments lOlb, 102b et 103b sont limités par des surfaces planes 115, 116 qui s'étendent en regard des flancs 107 et 106 des maillons lOla, 102a adjacents et qui constituent avec ces flancs des surfaces de butée.Type b links also include a central portion 110 and on either side of this central portion, articulation heads 111 and 112 of cylindrical shape, attached to the portion 110 by connecting zones 113. The central portion 110 has an internal bead 114 which is limited on each side by a portion of surface in the shape of a cylinder arc, also coaxial with the corresponding articulation head and connected to this head by a delimiting surface which extends in the shape of an S and is connects to the cylindrical surface of the head. On the outside, the elements 110b, 102b and 103b are limited by planar surfaces 115, 116 which extend opposite the flanks 107 and 106 of the adjacent links 110a, 102a and which constitute with these flanks abutment surfaces.

Comme on le voit à la fig. 8, la distance entre les têtes d'articulation 111 et 112, c'est-à-dire l'espace laissé libre entre ces deux têtes d'articulation qui s'étendent en regard l'une de l'autre au-delà du sommet du bourrelet 114, est égal au double de l'épaisseur des languettes d'accrochage 104 et 105, de sorte que, lorsque les lèvres d'accrochage des maillons lOla et 102a sont engagées chacune sur l'une des têtes d'articulation 112 ou lll, leurs surfaces extérieures sont jointives. Chacun des maillons lOla et 102a peut pivoter autour de l'axe de la tête d'articulation 112 ou 111 alors que les surfaces extérieures des lèvres d'accrochage restent en contact l'une avec l'autre et tangentes l'une à l'autre. Comme on le voit au dessin, les maillons sont symétriques par rapport à un plan médian. La position relative des trois maillons situés à l'extrémité droite et désignés par 103a, 103b et 104a montre le rayon de courbure minimum que le bracelet peut prendre. Seules les surfaces centrales des maillons à lèvres d'accrochage 101a,102a, 103a et 104a sont visibles de l'extérieur. Ce sont des surfaces incurvées qui se raccordent tangentiellement aux surfaces extérieures des lèvres.As seen in fig. 8, the distance between the articulation heads 111 and 112, that is to say the space left free between these two articulation heads which extend opposite each other beyond the top of the bead 114, is twice the thickness of the fastening tabs 104 and 105, so that when the lips for fastening the links lOla and 102a are each engaged on one of the articulation heads 112 or III, their outer surfaces are contiguous. Each of the links lOla and 102a can pivot around the axis of the articulation head 112 or 111 while the outer surfaces of the hooking lips remain in contact with each other and tangent to each other. other. As seen in the drawing, the links are symmetrical with respect to a median plane. The relative position of the three links located at the right end and designated by 103a, 103b and 104a shows the minimum radius of curvature that the bracelet can take. Only the central surfaces of the hooking lip links 101a, 102a, 103a and 104a are visible from the outside. These are curved surfaces which join tangentially to the outer surfaces of the lips.

La fabrication et le montage des maillons représentés à la fig. 8 peuvent être réalisés exactement comme décrits à propos des bracelets à maillons identiques des premières formes d'exécution. Ces éléments peuvent également être réalisés, soit en matière plastique, soit en un métal comme le laiton, le maillechort ou même l'acier, ou également en un métal précieux comme l'or, l'argent ou leurs alliages. De préférence, le mode de fabrication appliqué sera l'étirage. On peut cependant, après avoir sectionné les éléments de profilés en segments de courte longueur afin de réaliser les maillons, reprendre ces ê- léments sur un tour ou une fraiseuse pour usiner les éléments qui assureront le blocage dans le sens de l'axe des têtes d'articulation.The manufacture and assembly of the links shown in fig. 8 can be produced exactly as described with regard to bracelets with identical links of the first embodiments. These elements can also be made, either of plastic, or of a metal such as brass, nickel silver or even steel, or also of a precious metal such as gold, silver or their alloys. Preferably, the manufacturing method applied will be stretching. However, after having cut the profile elements into short length segments in order to make the links, these elements can be taken up on a lathe or a milling machine to machine the elements that will secure them in the direction of the axis of the heads. of articulation.

A la fig. 9, on voit à nouveau la partie centrale d'un bracelet constitué de deux types de maillons différents, les maillons 117a, 117b, 117c et les maillons 118a, 118b. Les maillons 117a, b et c sont des maillons à lèvres d'accrochage incurvées en arc de cylindre tandis que les maillons 118 sont des maillons à têtes d'articulation. Les lèvres d'accrochage 119 et 120 du maillon l17a ont la même disposition et la même forme que les lèvres d'accrochage 104 et 105 du maillon lOla tandis que les deux têtes d'articulation 121 et 122 du maillon 118a sont disposées et agencées comme les têtes d'articulation 112 et 111 du maillon lOlb. En revanche, la partie centrale du maillon 118a est fortement renflée et présente une saillie 123 dont les flancs 124 et 125 sont des surfaces en arc de cylindre coaxiales aux têtes d'articulation 121 et 122 et situées à une distance dela face latérale de ces têtes d'articulation qui est égale à l'épaisseur des lèvres d'accrochage 119 et 120. Ainsi, comme on le voit à la fig. 9, lorsque les têtes d'articulation 121 et 122 sont engagées dans les logements en arc de cylindre délimités par les lèvres d'accrochage 120 et 119 de deux maillons 117a et 117b par exemple, la face externe bombée du renflement 123 qui apparaît, à l'extérieur du bracelet, se raccorde par des arrondis 125 et 126 tangentiellement à la surface centrale des éléments 117a et 117b. En effet, les lèvres d'accrochage 119 et 120 sont engagées avec un petit jeu dans des logements délimités par des surfaces 125 ou 124. Bien entendu, les lèvres d'accrochage 119 et 120 s'étendent en arc de cercle sur un angle supérieur à 180° de façon à accrocher mécaniquement les têtes 121 et 122 à la manière d'une rotule. L' angle maximum entre les flancs 127 et 128 du maillon 118a et 129, 130 de chacun des maillons 117a et 117b est réalisé quand la lèvre d'accrochage 120 ou 119 est engagée à fond dans l'échancrure ou logement délimité par les flancs 124 et 125 du maillon 118a. Dans l'autre sens, la position extrême est obtenue lorsque les flancs 127 et 129 sont en contact l'un avec l'autre et lorsqu'il en est de même pour les flancs 128 et 130 des pièces 118a et 117a. Cette position relative est réalisée pour les deux maillons 118b et 117c, tandis que l'on a l'autre position extrême avec les maillons 117d, 117e et 118c.In fig. 9, we again see the central part of a bracelet made up of two types of links different, the links 117a, 117b, 117c and the links 118a, 118b. The links 117a, b and c are links with hooking lips curved in the shape of a cylinder arc, while the links 118 are links with articulation heads. The attachment lips 119 and 120 of the link l17a have the same arrangement and the same shape as the attachment lips 104 and 105 of the link lOla while the two articulation heads 121 and 122 of the link 118a are arranged and arranged as the articulation heads 112 and 111 of the link lOlb. On the other hand, the central part of the link 118a is strongly swollen and has a projection 123, the sides of which 124 and 125 are surfaces in the shape of an arc of a cylinder coaxial with the articulation heads 121 and 122 and situated at a distance from the lateral face of these heads articulation which is equal to the thickness of the attachment lips 119 and 120. Thus, as seen in FIG. 9, when the articulation heads 121 and 122 are engaged in the cylindrical arc housings delimited by the attachment lips 120 and 119 of two links 117a and 117b for example, the curved external face of the bulge 123 which appears, at the outside of the bracelet is connected by rounds 125 and 126 tangentially to the central surface of the elements 117a and 117b. In fact, the attachment lips 119 and 120 are engaged with a small clearance in housings delimited by surfaces 125 or 124. Of course, the attachment lips 119 and 120 extend in an arc of circle over a greater angle. at 180 ° so as to mechanically hang the heads 121 and 122 in the manner of a ball joint. The maximum angle between the sides 127 and 128 of the link 118a and 129, 130 of each of the links 117a and 117b is produced when the hooking lip 120 or 119 is fully engaged in the notch or housing delimited by the sides 124 and 125 of link 118a. In the other direction, the extreme position is obtained when the sides 127 and 129 are in contact with each other and when it is the same for the sides 128 and 130 of the parts 118a and 117a. This relative position is achieved for the two links 118b and 117c, while there is the other extreme position with the links 117d, 117e and 118c.

Bien entendu, d'autres variantes peuvent encore être envisagées en ce qui concerne la forme des différents maillons, l'aspect des surfaces visibles, leur structure et leur forme. En particulier, les effets esthétiques obtenus par différents états de surface, tels qu'ils sont décrits en relation avec les fig. 4 à 7 peuvent également être obtenus avec les réalisations décrites ci-dessus.Of course, other variants can also be envisaged with regard to the shape of the different links, the appearance of the visible surfaces, their structure and their shape. In particular, the aesthetic effects obtained by different surface states, as described in relation to FIGS. 4 to 7 can also be obtained with the embodiments described above.

Les bracelets décrits peuvent être des bracelets de montre. Dans ce cas, les maillons d'extrémité seront agencés pour recevoir une barrette de fixation aux cornes de la boîte, ou tout autre moyen de liaison. Le bracelet peut aussi être équipé d'un fermoir.The straps described can be watch straps. In this case, the end links will be arranged to receive a bar for fixing to the horns of the box, or any other means of connection. The bracelet can also be fitted with a clasp.

Rappelons enfin que dans les réalisations décrites ci-dessus, un bracelet est formé de maillons qui présentent des surfaces de raccordement agencées de telle sorte que les surfaces visibles des maillons sont tangentes les unes aux autres. Aucun jour n'apparaît entre les maillons, quelle que soit la position relative de ceux-ci.Finally, it should be recalled that in the embodiments described above, a bracelet is formed of links which have connecting surfaces arranged in such a way that the visible surfaces of the links are tangent to each other. No day appears between the links, whatever the relative position of these.

Claims (12)

1. Bracelet formé de maillons rigides directement articulés les uns aux autres et dans lequel chaque articulation est formée par une tête d'articulation limitée par une surface en arc de cylindre, faisant partie d'un maillon et par un logement ménagé dans le maillon adjacent, la tête d'articulation étant engagée dans ce logement sur un arc de plus de 130°, caractérisé en ce que les dits logements sont limités chacun par une lèvre en arc de cylindre qui présente une face externe se raccordant tangentiellement à une face externe homologue d'un autre maillon.1. Bracelet formed of rigid links directly articulated to each other and in which each articulation is formed by an articulation head limited by a surface in the shape of an arc of a cylinder, forming part of a link and by a housing formed in the adjacent link. , the articulation head being engaged in this housing on an arc of more than 130 °, characterized in that the said housings are each limited by a lip in the shape of a cylinder arc which has an external face tangentially connecting to a homologous external face another link. 2. Bracelet selon la revendication 1, dans lequel tous les maillons sont identiques, caractérisé en ce que chaque maillon est constitué par une tête d'articulation, par une lèvre d'accrochage en arc de cylindre et par une zone de liaison d'épaisseur égale à celle de la lèvre, raccordant cette dernière à la tête d'articulation et présentant une forme en S.2. Bracelet according to claim 1, in which all the links are identical, characterized in that each link is constituted by an articulation head, by a hooking lip in the arc of a cylinder and by a thick connection zone. equal to that of the lip, connecting the latter to the articulation head and having an S shape. 3. Bracelet selon la jevendication 2, caractérisé en ce que la surface extérieure de chaque lèvre d'accrochage est conformée de façon à donner au bracelet un aspect visible original tout en se raccordant tangentiellement à la surface en S du maillon suivant.3. Bracelet according to claim 2, characterized in that the outer surface of each hooking lip is shaped so as to give the bracelet an original visible appearance while tangentially connecting to the S-shaped surface of the following link. 4. Bracelet selon la revendication 1, caractérisé en ce que les maillons sont en forme de plaquettes et comportent chacun une tête d'articulation le long d'un des bords du maillon et une lèvre d'accrochage le long de l'autre bord, chaque maillon comportant une zone centrale massive entre la tête d'articulation et la lèvre d'accrochage.4. Bracelet according to claim 1, characterized in that the links are in the form of platelets and each comprise a hinge head along one of the edges of the link and a hooking lip along the other edge, each link having a massive central zone between the articulation head and the hooking lip. 5. Bracelet selon larevendication 1, caractérisé en ce que les maillons sont formés de segments de profilés.5. Bracelet according to claim 1, characterized in that the links are formed from profile segments. 6. Bracelet selon la revendication 5, caractérisé en ce que tous les maillons présentent le même profil.6. Bracelet according to claim 5, characterized in that all the links have the same profile. 7. Bracelet selon la revendication 2, caractérisé en ce que les zones de liaison en S de deux maillons adjacents se raccordent tangentiellement.7. Bracelet according to claim 2, characterized in that the S-shaped connection zones of two adjacent links are joined tangentially. 8. Bracelet selon la revendication 1, caractérisé en ce qu'il comporte des maillons à deux têtes d'articulation et des maillons à deux lèvres d'accrochage, les maillons du bracelet étant alternativement d'un type et de l'autre.8. Bracelet according to claim 1, characterized in that it comprises links with two articulation heads and links with two hooking lips, the bracelet links being alternately of one type and the other. 9. Bracelet selon la revendication 8, caractérisé en ce que les têtes d'articulation des maillons à deux têtes d'articulation sont disposées en regard l'une de l'autre et en ce que les lèvres d'accrochage des maillons adjacents qui entourent chacune une des têtes d'un même maillon sont tangentes l'une à l'autre.9. Bracelet according to claim 8, characterized in that the articulation heads of the links with two articulation heads are arranged opposite one another and in that the hooking lips of the adjacent links which surround each one of the heads of the same link are tangent to each other. 10. Bracelet selon la revendication 8, caractérisé en ce que les maillons à deux têtes d'articulation comportent entre les deux têtes une partie centrale saillante limitée par deux surfaces latérales en arc de cylindre coaxiales chacune à une des têtes.10. Bracelet according to claim 8, characterized in that the links with two articulation heads comprise between the two heads a projecting central part limited by two lateral surfaces in the form of an arc of cylinder coaxial each with one of the heads. 11. Bracelet selon la revendication 10, caractérisé en ce que les courbures des surfaces visibles des maillons à lèvres d'accrochage et des maillons à têtes d'articulation sont au moins approximativement semblables.11. Bracelet according to claim 10, characterized in that the curvatures of the visible surfaces of the attachment lip links and of the links with articulation heads are at least approximately similar. 12. Bracelet selon la revendication 11, caractérisé en ce que les parties visibles des maillons à têtes d'articulation se raccordent aux dites portions de surface cylindrique coaxiales aux têtes d'articulation par des arrondis tangents aux surfaces visibles des maillons à lèvres d'accrochage.12. Bracelet according to claim 11, characterized in that the visible parts of the links with articulation heads are connected to the said portions of cylindrical surface coaxial with the articulation heads by rounded tangents to the visible surfaces of the attachment lip links. .
EP19790200323 1978-06-27 1979-06-20 Bracelet made of rigid links directly jointed with each other Expired EP0006664B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH7008/78 1978-06-27
CH700878A CH623215A5 (en) 1978-06-27 1978-06-27 Bracelet formed from rigid links
CH17979A CH627352A5 (en) 1979-01-09 1979-01-09 Bracelet consisting of rigid links directly articulated to one another
CH179/79 1979-01-09

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EP0006664A1 true EP0006664A1 (en) 1980-01-09
EP0006664B1 EP0006664B1 (en) 1982-06-16

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FR2754983A1 (en) * 1996-10-30 1998-04-30 Chatelain Sa G & F RIGID STRAP, ESPECIALLY FOR A WATCH
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CN105768410A (en) * 2016-05-27 2016-07-20 上海应用技术学院 Bracelet capable of being fastened and prevented from being disengaged

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Publication number Publication date
EP0006664B1 (en) 1982-06-16
DE2963100D1 (en) 1982-08-05

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