EP3799761B1 - Bracelet élastique pour articles tels que montres-bracelets et/ou bijoux et/ou bijoux de fantaisie - Google Patents

Bracelet élastique pour articles tels que montres-bracelets et/ou bijoux et/ou bijoux de fantaisie Download PDF

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Publication number
EP3799761B1
EP3799761B1 EP20198420.0A EP20198420A EP3799761B1 EP 3799761 B1 EP3799761 B1 EP 3799761B1 EP 20198420 A EP20198420 A EP 20198420A EP 3799761 B1 EP3799761 B1 EP 3799761B1
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EP
European Patent Office
Prior art keywords
bracelet
turns
helical element
elastic
helical
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EP20198420.0A
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German (de)
English (en)
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EP3799761A1 (fr
Inventor
Mario Priori
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Salin Srl
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Salin Srl
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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
    • A44C5/0053—Flexible straps
    • A44C5/0069—Flexible straps extensible
    • A44C5/0076—Flexible straps extensible essentially made from metal
    • 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
    • A44C5/04—Link constructions extensible

Definitions

  • the present invention concerns bracelets, preferably bracelets for objects such as wristwatches and/or jewellery items and/or costume jewellery items.
  • the present invention concerns bracelets in which a certain degree of elasticity is required in order to make them easier to wear and more adaptable compared to traditional bracelets.
  • bracelets which make it possible to put the item on, for example on the wrist in the case of a watch, on the ankle in the case of an anklet, on the neck in the case of a necklace etc, is known in the field of manufacture of objects such as wristwatches and/or jewellery items and/or costume jewellery items.
  • Elastic bracelets can be adapted to the small variations occurring in the diameter of the wrist, the ankle or the neck over time, with no need to carry out manual adjustments and/or to interpose adjusting links, for example in proximity to the fastener, for which special tools and/or the intervention of specialized personnel is/are required.
  • the elastic bracelets of the known type, with or without fastening systems are constituted by elastic metallic assemblies typically comprising a plurality of rigid links placed side by side and connected to one another by means of preferably metallic elastic elements such as, for example, torsion springs.
  • the elastic elements allow two adjacent links to be moved away from each other or towards each other, so that the diameter of the bracelet can be automatically adapted to the wrist, the ankle or the neck where it is worn.
  • the elastic elements used in the known art are typically made of a resistant metallic material, typically steel.
  • a first drawback of the bracelets of the known type lies in that the elastic connection elements may come off and/or break, thus affecting the structure of the bracelet and possibly causing the same to open.
  • Another drawback of the bracelets of the known type lies in that it is difficult to manufacture items completely made of a valuable material, for example gold, silver or platinum, due to the presence of the elastic elements in steel.
  • Another drawback posed by the bracelets of the known type is constituted by the fact that the elastic elements negatively affect the aesthetic appearance of the bracelet, since the choice of their shape is strongly influenced by the elastic function they must serve and sometimes it is not possible to shape the elements so as to achieve the desired aesthetic result. Furthermore, the undesired aesthetic effect is particularly enhanced in the configuration of the bracelet with separated/stretched links.
  • a further drawback posed by the bracelets of the known type is constituted by the risk of the bracelet links pinching the user's skin or hair when he/she is wearing the bracelet.
  • Elastic bracelets according to the prior art are known from documents FR 1 093 940 A , DE 25 00 980 A1 , US 2 498 211 A , US 4 627 231 A , US 3 496 719 A , and GB 946 171 A .
  • FR1093940 A discloses a bracelet according to the preamble of claim 1.
  • the present invention is based on the general consideration that the problems observed in the state of the art can be at least partially overcome by providing a bracelet comprising at least one elastic section, wherein said elastic section comprises two helical elements placed side by side and connected through an elastic element.
  • the subject of the same is thus an elastic bracelet for objects such as wristwatches and/or jewellery items and/or costume jewellery items and the like, said bracelet having a structure that is developed along a main axis and is suited to be curved along said main axis to define a ring shape for said bracelet, said structure comprising at least one elastic section, wherein said elastic section comprises:
  • the elastic element comprises a body having an elongated shape, preferably a metal strap, more preferably a shaped metal strap.
  • the elastic element comprises an element that works under flexure.
  • the elastic element has a first arched position in which it is suited to push the first helical element against the second helical element in a first position of maximum mutual penetration between the first helical element and the second helical element, and at least one second, less arched position corresponding to a second position of reduced mutual penetration between the first helical element and the second helical element.
  • the ends of the elastic element are fixed to respective first turns of the first helical element or to respective second turns of the second helical element.
  • said ends are fixed to the first turns or to the second turns by means of a welding process or by means of a fixing or gluing process.
  • the mutual penetration area extends over the entire length of the first helical element and/or of the second helical element.
  • the first turns are wound forming a first angle with respect to the first direction and the second turns are wound forming a second angle with respect to the second direction.
  • the first angle is equal to the second angle.
  • the first angle and the second angle are supplementary angles.
  • the first direction is perpendicular to the main axis and/or the second direction is perpendicular to the main axis.
  • the same concerns an object such as a wristwatch or a jewellery and/or costume jewellery item, wherein the object comprises a bracelet made according to the description provided above.
  • the present invention can be especially but not exclusively applied in the field of jewellery and/or costume jewellery. More specifically, the bracelet according to the present invention can be advantageously used to make a valuable or luxury wristwatch. For this reason, the present invention is described here below with particular reference to a wristwatch.
  • the applications of the present invention are not limited to the case of wristwatches; on the contrary, the present invention can be advantageously applied in all those cases in which a bracelet is required, in particular for objects such as jewellery items and/or costume jewellery items as specified above.
  • a bracelet according to the invention can be used for making an ornamental anklet or a necklace.
  • the jewellery and/or costume jewellery item can be constituted even by the bracelet alone.
  • a first embodiment of the bracelet 10 according to the present invention is described below with reference to Figures from 1 to 9.
  • the bracelet 10 shown in Figure 1A is used for making a wristwatch O comprising the bracelet 10, or strap, and a watch W.
  • the bracelet 10 preferably comprises two terminal areas 12, 14 connected to the watch W.
  • the bracelet 10 according to the invention has a certain degree of elasticity which advantageously makes it possible to wear the item on the wrist or ankle in such a way that it adheres to it but is not too tight, and which adapts the bracelet to small diameter variations, thus making it easier for the user to put the item on and to wear it.
  • the bracelet 10 has a structure which is developed along a main axis X and is shaped in such a way that it can be curved to define the ring shape desired for the wristwatch O, as shown in Figure 1A .
  • the bracelet 10 is preferably made in a single piece closed as a ring and connected to the ends 12, 14 of the watch W.
  • the bracelet can be made in several parts assembled together.
  • the parts may comprise, for example, adjacent sections having different shapes and/or structures and connected together, or they may comprise at least two opening sections and a fastening system Z between the two parts which makes it possible to stretch the bracelet 10 for the introduction of the wrist or ankle, as shown in Figure 1B .
  • Figure 1A shows the bracelet 10 in its curved configuration, ready to be put on by the user, while in Figure 2 and in successive figures the partial views of the bracelet 10 show the bracelet when open and placed on a plane surface for the sake of clarity.
  • the structure of the bracelet 10 comprises at least one elastic section 20.
  • the elasticity according to the present invention is related to variations, meaning extensions and reductions, in the length of the bracelet 10 along its main axis X, for example small extensions of a few millimetres up to extensions that can even reach 20-25 mm, which can make it possible to put the watch on or take it off by sliding the user's hand through it, in particular when the bracelet has no fasteners.
  • all the sections making up the bracelet 10 are preferably elastic. In preferred variant embodiments, however, the bracelet may comprise one or more elastic sections for limited extension with respect to the total length of the bracelet.
  • the length of the elastic sections can be conveniently selected according to the extensions/reductions required for the bracelet.
  • the elastic section 20 comprises a first helical element 30, a second helical element 40 and an elastic element 50 designed to join the first helical element 30 and the second helical element 40, as illustrated in particular in Figures 4 and 5 .
  • the first helical element 30 and/or the second helical element 40 and/or the elastic element 50 are preferably made of a metallic material, more preferably a valuable metallic material, for example gold, silver, platinum.
  • the first helical element 30 is developed along a first direction D1 which is transversal and preferably perpendicular to the main axis X.
  • the first helical element 30 is constituted by a plurality of first consecutive turns 32 wound along the first direction D1.
  • the second helical element 40 is developed along a second direction D2 which is transversal and preferably perpendicular to the main axis X.
  • the second helical element 40 is constituted by a plurality of second consecutive turns 42 wound along the second direction D2.
  • the first and the second helical elements 30, 40 are preferably obtained starting from a thread which is wound so as to form the respective turns 32, 42 along the respective directions D1, D2.
  • the turns 32, 42 are wound according to a circular pattern, as shown for example in Figure 8C .
  • the turns can be wound according to different profiles, for example in an ovoid profile, as shown in Figures 14, 15 and 16 , or in a flattened profile, a rectangular profile etc.
  • the thread that constitutes the first and/or the second helical element 30, 40 with the respective turns preferably has a solid cross section in a circular geometric shape.
  • the cross section of the thread can have different geometric shapes, for example polygonal, mixtilinear etc., or it can be hollow.
  • the first helical element 30 and the second helical element 40 preferably have the same length and are arranged side by side and penetrate each other at least partially in a mutual penetration area.
  • the mutual penetration area coincides with the entire length of the two helical elements 30, 40.
  • the second turns 42 is inserted between two adjacent turns of the first turns 32 and, vice versa, at least one turn of the first turns 32 is inserted between two adjacent turns of the second turns 42.
  • the first turns 32 of the first helical element 30 are wound forming a predetermined first angle with respect to the first direction D1, for example a 110° angle in the first embodiment illustrated in Figure 7 .
  • the second turns 42 of the second helical element 40 are wound forming a predetermined second angle with respect to the first direction D2, for example a 70° angle in the first embodiment illustrated in Figure 7 .
  • the two angles are preferably supplementary angles. In preferred variant embodiments, however, the value of the two angles can be different.
  • the two angles of the turns 32, 43 of the two helical elements 30, 42 are the same, 70° in the solution illustrated in Figure 17 and 110° in the solution illustrated in Figure 18 .
  • the elastic element 50 that joins the first helical element 30 and the second helical element 40 is preferably inserted crosswise in the first turns 32 and in the second turns 42 at the level of the mutual penetration area.
  • the elastic joining element 50 preferably comprises a body having an elongated shape, preferably a metal strap, more preferably a metal strap in a rectangular or a contoured rectangular shape.
  • the elastic element 50 comprises a first end 52 fixed to one turn 32A of the first turns 32 of the first helical element 30 and a second end 54 fixed to one turn 32B of the first turns 32 of the first helical element 30, while the elastic element 50 of the adjacent section comprises a first end 52 fixed to one turn 42A of the second turns 42 of the second helical element 40 and a second end 54 fixed to one turn 42B of the second turns 42 of the second helical element 40, as shown in Figures 6, 7 , 8A and 8B .
  • the ends 52, 54 of the elastic element 50 are preferably fixed to the corresponding turns by means of a welding process. In variant embodiments they can be fixed in a different and equivalent manner, for example through a mechanical fixing process or a gluing process etc.
  • the elastic element 50 is preferably constituted by an element that works under flexure.
  • the elastic element 50 can assume a first arched or released position ( Figures 8B and 8D ) and at least one second less arched or stretched position ( Figures 9B and 9D ).
  • the elastic element 50 is arranged in the first arched position corresponding to a first operating configuration of the bracelet 10, in which it pushes the first helical element 30 against the second helical element 40 towards a first position of maximum mutual penetration between the first helical element 30 and the second helical element 40 (see Figures from 8A to 8C).
  • the elastic element 50 is arranged in the second, less arched position corresponding to a second operating configuration of the bracelet 10, in which there is a reduced mutual penetration between the first helical element 30 and the second helical element 40 (see Figures from 9A to 9C).
  • the elastic element 50 In the second operating configuration, the elastic element 50 preferably assumes its stretched/rectilinear configuration.
  • the elastic element 50 acts as a leaf spring.
  • the elastic elements 50 of the bracelet 10 are assembled in such a way that they all have their arched part on the same side, as shown in Figure 8D . Thanks to the action of the elastic element 50, or of the elastic elements 50 if more than one are provided, the bracelet 10 can thus assume a first operating configuration ( Figure 8B ), in which it has the minimum size/diameter, and a second operating configuration, in which it has the maximum size/diameter ( Figure 9B ), thus obtaining the desired flexibility.
  • a first operating configuration Figure 8B
  • a second operating configuration in which it has the maximum size/diameter
  • the action of the elastic elements 50 of the various elastic sections 20 forming the bracelet 10 makes it easier to put on and wear the wristwatch O and allows the bracelet 10 to be adapted to wrists having different diameters or to variations in the diameter of the same wrist.
  • the simple construction structure of the bracelet makes the latter sturdier than the bracelets of the known type, thus making it almost impossible to lose the bracelet.
  • the bracelet does not require the use of elastic steel elements, which instead are used in the known art, so that it can preferably be made with valuable metals, in particular it can be completely made of gold.
  • a further advantage offered by the bracelet of the present invention is constituted by the fact that the elastic element 50 is completely surrounded by the turns of the helical elements, thus remaining concealed. In this way, the aesthetic appearance of the bracelet is not affected by the elastic element, independently of the operating configuration assumed by the same.
  • the special construction of the bracelet with helical elements positioned side by side defines a sufficiently compact and smooth structure, which prevents the bracelet from pinching the skin or hair of the user who is wearing it.
  • the bracelet 110 according to said embodiment differs from the previous embodiment described with reference to Figures from 1 to 9 due to the different position of the elastic elements 50.
  • the elastic elements 50 of the bracelet 10 are assembled in such a way that the arched part of an elastic element 50 is contrary to the arched part of an adjacent elastic element 50, as shown in Figure 10D .
  • the elastic elements 50 assume the arched position corresponding to a first operating configuration of the bracelet 10 (minimum size/diameter, Figures from 10A to 10C).
  • the elastic elements 50 then assume a second, less arched position, preferably rectilinear, corresponding to a second operating configuration of the bracelet 10 (maximum size/diameter, Figures from 11A to 11C).
  • the bracelet 210 according to said embodiment differs from the embodiment previously described with reference to Figures 10 and 11 8 due to the fact that the elastic elements 250 are made in a different way.
  • the elastic elements of the bracelet are not constituted by separate elements fixed with their ends to the helical elements but belong to a single elastic element 250 conveniently shaped to define corresponding arched sections, each of which serves the same functions previously described.
  • each arched section is joined to respective ends of adjacent sections in connection areas 252, preferably in semicircular connection areas.
  • connection areas 252 are defined on the lateral edges 210A and 210B of the bracelet.
  • a covering element 260 is used to conceal the connection areas 252 and improve the aesthetic effect at the level of the lateral edges 210A, 210B of the bracelet 210.
  • the covering element preferably comprises a hemi spherical portion 262 inside which there is a pin 264 surrounded by the connection area 252 of the elastic element 250.
  • Figures from 14 to 16 show possible variant embodiments related to the shape of the turns which make up the helical elements of the bracelet.
  • Figure 14 shows a possible embodiment in which only turns 332, 342 with an ovoid shape are used
  • Figures 15 and 16 show a possible embodiment in which turns with a circular shape 32 alternate with turns with an ovoid shape 332.
  • Figures 17 and 18 show possible variant embodiments related to the inclination of the turns of adjacent helical elements 30, 40 of the bracelet.
  • Figures 17 and 18 show possible variant embodiments related to the inclination of the turns of adjacent helical elements 30, 40 of the bracelet.
  • the turns 32, 42 of the two helical elements 30, 40 have the same inclination, preferably a 70° angle with respect to the directions D1, D2 as previously defined, and in Figure 18 the turns 32, 43 of the two helical elements 30, 42 have the same inclination, preferably a 110° angle with respect to the directions D1, D2.
  • the bracelet 410 differs from the embodiments described above in that the elastic element 450 is constituted by one pair of elastic elements 450A, 450B. Each of the two elements is shaped so that it can assume the arched position corresponding to a first operating configuration of the bracelet 410 (minimum size/diameter, Figures from 19A to 19C) and a second, less arched position, not shown and preferably rectilinear analogously to what has been described above, corresponding to a second operating configuration of the bracelet 410 (maximum size/diameter).
  • the bracelet 510 according to said embodiment differs from the embodiments previously described in that only some sections 20 of the bracelet 510 are elastic, having respective elastic elements 50, while other sections 580 are not elastic.
  • the present invention makes it possible to overcome the problems related to the bracelets known in the art.
  • the bracelet according to the present invention is sturdier than the elastic bracelets of the known type.

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Claims (12)

  1. Bracelet élastique (10 ; 110 ; 210 ; 410 ; 510) pour objets (O) tels que montres-bracelets (O) et/ou articles de bijouterie et/ou articles de bijouterie fantaisie et objets similaires, ledit bracelet (10 ; 110 ; 210 ; 410 ; 510) ayant une structure qui est développée le long d'un axe principal (X) et qui est apte à être courbée le long dudit axe principal (X) afin de définir une forme d'anneau pour ledit bracelet (10 ; 110 ; 210 ; 410 ; 510), ladite structure comprenant au moins une section élastique (20), où ladite section élastique (20) comprend :
    - un premier élément hélicoïdal (30) qui est développé le long d'une première direction (Dl), transversalement par rapport audit axe principal (X), ledit premier élément hélicoïdal (30) étant constitué d'une pluralité de premières spires consécutives (32 ; 332) enroulées le long de ladite première direction (D1) ;
    - un deuxième élément hélicoïdal (40) qui est développé le long d'une deuxième direction (D2), transversalement par rapport audit axe principal (X), ledit deuxième élément hélicoïdal (40) étant constitué d'une pluralité de deuxièmes spires consécutives (42 ; 342) enroulées le long de ladite deuxième direction (D2), où ledit premier élément hélicoïdal (30) et ledit deuxième élément hélicoïdal (40) sont positionnés l'un à côté de l'autre et se pénètrent mutuellement au moins partiellement dans une zone de pénétration mutuelle correspondante, où au moins une desdites deuxièmes spires (42 ; 342) est insérée entre deux spires adjacentes desdites premières spires (32 ; 332) et, vice versa, au moins une desdites premières spires (32 ; 332) est insérée entre deux spires adjacentes desdites deuxièmes spires (42 ; 342) ;
    - un élément (50 ; 250 ; 450) destiné à relier ledit premier élément hélicoïdal (30) et ledit deuxième élément hélicoïdal (40), ledit élément (50 ; 250 ; 450) étant inséré transversalement dans lesdites premières spires (32 ; 332) et lesdites deuxièmes spires (42 ; 342) au niveau de ladite zone de pénétration mutuelle entre ledit premier élément hélicoïdal (30) et ledit deuxième élément hélicoïdal (40),
    caractérisé en ce que ledit élément (50 ; 250 ; 450) est un élément élastique et comprend un ressort à lames.
  2. Bracelet (10 ; 110 ; 210 ; 410 ; 510) selon la revendication 1, caractérisé en ce que ledit élément élastique (50 ; 250 ; 450) comprend un corps de forme allongée, de préférence une sangle en métal, plus préférablement une sangle en métal galbée.
  3. Bracelet (10 ; 110 ; 210 ; 410 ; 510) selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit élément élastique (50 ; 250 ; 450) comprend un élément qui fonctionne sous flexion.
  4. Bracelet (10 ; 110 ; 210 ; 410 ; 510) selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit élément élastique (50 ; 250 ; 450) présente une première position arquée, dans laquelle il est apte à pousser ledit premier élément hélicoïdal (30) contre ledit deuxième élément hélicoïdal (40) dans une première position de pénétration mutuelle maximale entre ledit premier élément hélicoïdal (30) et ledit deuxième élément hélicoïdal (40), et au moins une deuxième position moins arquée correspondant à une deuxième position de pénétration mutuelle réduite entre ledit premier élément hélicoïdal (30) et ledit deuxième élément hélicoïdal (40).
  5. Bracelet (10 ; 110 ; 210 ; 410 ; 510) selon l'une quelconque des revendications précédentes, caractérisé en ce que les extrémités (52, 54) dudit élément élastique (50 ; 250 ; 450) sont fixées à de premières spires respectives (32 ; 332) dudit premier élément hélicoïdal (30) ou à de deuxièmes spires respectives (42 ; 342) dudit deuxième élément hélicoïdal (40).
  6. Bracelet (10 ; 110 ; 210 ; 410 ; 510) selon la revendication 5, caractérisé en ce que lesdites extrémités (52, 54) sont fixées auxdites premières spires (32 ; 332) ou auxdites deuxièmes spires (42 ; 342) par un procédé de soudage ou par un procédé de fixation ou de collage.
  7. Bracelet (10 ; 110 ; 210 ; 410 ; 510) selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite zone de pénétration mutuelle s'étend sur toute la longueur dudit premier élément hélicoïdal (30) et/ou dudit deuxième élément hélicoïdal (40).
  8. Bracelet (10 ; 110 ; 210 ; 410 ; 510) a selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdites premières spires (32 ; 332) sont enroulées en formant un premier angle par rapport à ladite première direction (D1) et lesdites deuxièmes spires (42 ; 342) sont enroulées en formant un deuxième angle par rapport à ladite deuxième direction (D2).
  9. Bracelet (10 ; 110 ; 210 ; 410 ; 510) selon la revendication 8, caractérisé en ce que ledit premier angle est égal audit deuxième angle.
  10. Bracelet (10 ; 110 ; 210 ; 410 ; 510) selon la revendication 8, caractérisé en ce que ledit premier angle et ledit deuxième angle sont des angles supplémentaires.
  11. Bracelet (10 ; 110 ; 210 ; 410 ; 510) selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite première direction (D1) est perpendiculaire audit axe principal (X) et/ou ladite deuxième direction (D2) est perpendiculaire audit axe principal (X).
  12. Objet (O), tel qu'une montre-bracelet (0) et/ou un article de bijouterie et/ou un article de bijouterie fantaisie, caractérisé en ce que ledit objet (O) comprend un bracelet (10 ; 110 ; 210 ; 410 ; 510) selon l'une quelconque des revendications précédentes.
EP20198420.0A 2019-10-01 2020-09-25 Bracelet élastique pour articles tels que montres-bracelets et/ou bijoux et/ou bijoux de fantaisie Active EP3799761B1 (fr)

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IT201900017597 2019-10-01

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EP3799761B1 true EP3799761B1 (fr) 2023-05-24

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2498211A (en) * 1947-01-27 1950-02-21 Kreisler Mfg Corp Jacques Bracelet and method of making the same
FR1093940A (fr) * 1954-02-26 1955-05-10 Procédés de fabrication d'un bracelet, collier ou article similaire et articles conformes à ceux obtenus suivant ces procédés ou procédés similaires
GB946171A (en) * 1962-04-10 1964-01-08 Mario Zaltron An expanding bracelet
GB1112142A (en) * 1965-12-01 1968-05-01 Mario Zaltron An extensible elastic metal strap
DE2500980A1 (de) * 1975-01-11 1976-07-15 Fiessler & Cie Louis Gelenkband
JPS60184440A (ja) * 1984-03-01 1985-09-19 Manabu Kiuchi メツシユバンド

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