EP0116384B1 - Leather strap provided with a foldable clasp - Google Patents

Leather strap provided with a foldable clasp Download PDF

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Publication number
EP0116384B1
EP0116384B1 EP84200077A EP84200077A EP0116384B1 EP 0116384 B1 EP0116384 B1 EP 0116384B1 EP 84200077 A EP84200077 A EP 84200077A EP 84200077 A EP84200077 A EP 84200077A EP 0116384 B1 EP0116384 B1 EP 0116384B1
Authority
EP
European Patent Office
Prior art keywords
watch
clasp
wrist
bracelet
leather
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84200077A
Other languages
German (de)
French (fr)
Other versions
EP0116384A1 (en
Inventor
Eric Bonnet
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.)
JEAN LASSALE SA
Original Assignee
JEAN LASSALE SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JEAN LASSALE SA filed Critical JEAN LASSALE SA
Publication of EP0116384A1 publication Critical patent/EP0116384A1/en
Application granted granted Critical
Publication of EP0116384B1 publication Critical patent/EP0116384B1/en
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/14—Suspending devices, supports or stands for time-pieces insofar as they form part of the case
    • G04B37/1486—Arrangements for fixing to a bracelet
    • 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
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/18—Fasteners for straps, chains or the like
    • A44C5/22—Fasteners for straps, chains or the like for closed straps
    • A44C5/24—Fasteners for straps, chains or the like for closed straps with folding devices

Definitions

  • the present invention relates to a watch strap comprising two strands made of leather surrounding a flexible frame, the ends of these strands being attached on the one hand to the watch case and articulated on the other hand to a folding clasp so as to form a closed loop in the open position of the clasp.
  • the folding clasp in two or three elements, is often called a wallet clasp or a folding clasp.
  • the leather strap is generally attached to the watch by means of a strap.
  • the invention aims to facilitate the opening and fitting of the watch strap around the wrist and to remove the elbow formed between the watch and the strap.
  • the wristwatch according to the invention is characterized in that the flexible frame consists of two elastic blades, one end of which is rigidly secured to the watch.
  • This flexible frame rigidly secured to the box simultaneously ensures the tensile strength of the bracelet, the maintenance in the open position of the loop formed by the watch strap when the clasp is open and a harmonious curvature of the leather without elbow at the start of the box.
  • the frame is preferably chosen to be very thin and very flexible so as to offer only a very slight resistance when the clasp is closed. Given this very small thickness, the blade does not, as one might believe, have the effect of increasing the thickness of the bracelet, but on the contrary its resistance allows the use of very thin leather so that the he final thickness of the bracelet is less than that of a conventional leather bracelet. It is therefore possible to make a resistant watch bracelet with a light and thin appearance.
  • the soul of the bracelet consists of two blades 1 and 2 in beryllium bronze with a thickness of 0.15 mm. At one of their ends, the blades are embedded and welded in a metal ring or ring 3, for example in brass, forming part of the watch case 3 '(fig. 3). The other end of the blades 1 and 2 is folded back on itself so as to form a fastener 4 of tubular shape for the articulated fixing of the bracelet on the clasp 5.
  • the elastic blades 1 and 2 are surrounded by the leather 6 of the bracelet .
  • the leather is glued to the blades.
  • the clasp 5 is of the folding clasp or double wallet type and has a central part 7 at the ends of which are articulated two arms 8 and 9 which are folded down and locked on the central part 7.
  • the straps of the bracelet to the clasp are hidden by a cover plate 10.
  • the bracelet in the open position tends to remain or return to the deployed position shown in Figure 1.
  • the blades 1 and 2 can have a more or less marked initial curvature, so that the elastic force is just sufficient to maintain the bracelet in the deployed position as shown in FIG. 1, without however exerting too strong a pull on the clasp, nor enduring too much stress strong at the level of the installation.
  • This natural deployment of the bracelet facilitates the positioning of the wristwatch on the wrist, as well as its removal.
  • the elastic core also ensures a support and a harmonious curvature of the leather strap.
  • the metal blades could be made of another metal, for example steel and they could be rigidly fixed in another way to the case, in particular to the middle part, for example by means of screws. Fasteners 4 could be added.
  • the flexible blades can also be made of a non-metallic material, for example synthetic material such as nylon (registered trademark).
  • a plastic blade has the advantage of being able to be produced by molding and of allowing better adhesion, by gluing, of the leather on the blade.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)

Description

La présente invention a pour objet un bracelet-montre comprenant deux brins constitués de cuir entourant une armature flexible, les extrémités de ces brins étant attachées d'une part à la boîte de montre et articulées d'autre part à un fermoir pliant de manière à former une boucle fermée en position ouverte du fermoir.The present invention relates to a watch strap comprising two strands made of leather surrounding a flexible frame, the ends of these strands being attached on the one hand to the watch case and articulated on the other hand to a folding clasp so as to form a closed loop in the open position of the clasp.

Les bracelets-montres à bracelet en cuir et fermoir pliant sont très répandus. Le fermoir pliant, en deux ou trois éléments, est souvent appelé fermoir portefeuille ou fermoir à boucle déployante. Le bracelet en cuir est généralement fixé à la montre au moyen d'une barrette.Leather watch bands with folding clasps are very common. The folding clasp, in two or three elements, is often called a wallet clasp or a folding clasp. The leather strap is generally attached to the watch by means of a strap.

Lorsqu'ils sont portés au poignet, ces bracelets forment un angle plus ou moins marqué et inesthétique avec la montre. En outre, il peut être parfois malaisé d'introduire la main dans le bracelet-montre pour le fixer au poignet car la boucle formée par le bracelet-montre, lorsque le fermoir est ouvert, a parfois tendance à se refermer intempestivement.When worn on the wrist, these bracelets form a more or less marked and unsightly angle with the watch. In addition, it can sometimes be awkward to introduce your hand into the watch strap to fix it on the wrist because the loop formed by the watch strap, when the clasp is open, sometimes tends to close unexpectedly.

Enfin, il est nécessaire d'avoir un cuir suffisamment fort et épais pour résister à la traction lors de la fermeture du fermoir sur le poignet. Cette tension tend d'autre part à imprimer au cuir une forme rectiligne entre la montre et le fermoir.Finally, it is necessary to have a sufficiently strong and thick leather to resist traction when closing the clasp on the wrist. This tension, on the other hand, tends to give the leather a rectilinear shape between the watch and the clasp.

On a déjà proposé de renforcer le cuir du bracelet au moyen d'une armature flexible en bougran, en cuir ou similaire (US-A-2 036 648), mais une telle armature n'élimine pas l'angle formé entre la boîte de montre et le bracelet. Si elle est quelque peu rigide elle accentuera au contraire cet angle.It has already been proposed to reinforce the leather of the bracelet by means of a flexible frame made of buckram, leather or the like (US Pat. No. 2,036,648), but such a frame does not eliminate the angle formed between the box. watch and bracelet. If it is somewhat rigid, it will accentuate this angle on the contrary.

On a d'autre part déjà proposé de munir d'une montre un bracelet en une pièce du type esclave (CH-A-518 696). Un tel bracelet ne comporte pas de fermoir mais il est élastiquement flexible et pour l'enlever du poignet il est nécessaire d'exercer un effort relativement élevé pour d'écarter ses extrémités. De même pour le mettre au poignet, ce qui n'est pas toujours commode.On the other hand, it has already been proposed to provide a watch with a one-piece bracelet of the slave type (CH-A-518 696). Such a bracelet does not have a clasp but it is elastically flexible and to remove it from the wrist it is necessary to exert a relatively high force to spread its ends. Similarly to put it on the wrist, which is not always convenient.

L'invention a pour but de faciliter l'ouverture et la mise en place du bracelet-montre autour du poignet et de supprimer le coude formé entre la montre et le bracelet.The invention aims to facilitate the opening and fitting of the watch strap around the wrist and to remove the elbow formed between the watch and the strap.

Le bracelet-montre selon l'invention est caractérisé par le fait que l'armature flexible est constitué de deux lames élastiques dont une extrémité est rigidement solidaire de la montre.The wristwatch according to the invention is characterized in that the flexible frame consists of two elastic blades, one end of which is rigidly secured to the watch.

Cette armature flexible rigidement solidaire de la boîte assure sumultanément la résistance à la traction du bracelet, le maintien en position ouverte de la boucle formée par le bracelet-montre lorsque le fermoir est ouvert et une courbure harmonieuse du cuir sans coude au départ de la boîte. L'armature est choisie de préférence très mince et très flexible de manière à n'opposer qu'une très légère résistance lors de la fermeture du fermoir. Compte tenu de cette très faible épaisseur, la lame n'a pas, comme on pourrait le croire, pour effet d'augmenter l'épaisseur du bracelet, mais au contraire sa résistance permet d'utiliser un cuir très mince de telle sorte que l'épaisseur finale du bracelet est inférieure à celle d'un bracelet en cuir conventionnel. Il est donc possible de réaliser un bracelet-montre résistant présentant un aspect léger et fin.This flexible frame rigidly secured to the box simultaneously ensures the tensile strength of the bracelet, the maintenance in the open position of the loop formed by the watch strap when the clasp is open and a harmonious curvature of the leather without elbow at the start of the box. . The frame is preferably chosen to be very thin and very flexible so as to offer only a very slight resistance when the clasp is closed. Given this very small thickness, the blade does not, as one might believe, have the effect of increasing the thickness of the bracelet, but on the contrary its resistance allows the use of very thin leather so that the he final thickness of the bracelet is less than that of a conventional leather bracelet. It is therefore possible to make a resistant watch bracelet with a light and thin appearance.

Le dessin annexé représente, à titre d'exemple, une forme d'exécution du bracelet-montre selon l'invention.

  • La figure 1 en représente une vue de profil, fermoir ouvert.
  • La figure 2 représente l'âme du bracelet.
  • La figure 3 est un détail montrant la fixation du bracelet à la boîte de montre.
  • La figure 4 est un détail montrant l'attache du bracelet au fermoir.
The accompanying drawing shows, by way of example, an embodiment of the watch strap according to the invention.
  • Figure 1 shows a side view, open clasp.
  • Figure 2 shows the soul of the bracelet.
  • Figure 3 is a detail showing the attachment of the strap to the watch case.
  • Figure 4 is a detail showing the attachment of the bracelet to the clasp.

L'âme du bracelet est constituée de deux lames 1 et 2 en bronze béryllium d'une épaisseur de 0,15 mm. A l'une de leurs extrémités les lames sont encastrées et soudées dans un anneau métallique ou bague 3, par exemple en laiton, faisant partie de la boîte de montre 3' (fig. 3). L'autre extrémité des lames 1 et 2 est repliée sur elle-même de manière à former une attache 4 de forme tubulaire pour la fixation articulée du bracelet sur le fermoir 5. Les lames élastiques 1 et 2 sont entourées par le cuir 6 du bracelet. Le cuir est collé sur les lames.The soul of the bracelet consists of two blades 1 and 2 in beryllium bronze with a thickness of 0.15 mm. At one of their ends, the blades are embedded and welded in a metal ring or ring 3, for example in brass, forming part of the watch case 3 '(fig. 3). The other end of the blades 1 and 2 is folded back on itself so as to form a fastener 4 of tubular shape for the articulated fixing of the bracelet on the clasp 5. The elastic blades 1 and 2 are surrounded by the leather 6 of the bracelet . The leather is glued to the blades.

Le fermoir 5 est du type à boucle déployante ou double portefeuille et comporte une partie centrale 7 aux extrémités de laquelle sont articulés deux bras 8 et 9 qui viennent se rabattre et se verrouiller sur la partie centrale 7. Les attaches du bracelet au fermoir sont cachées par une plaque de couverture 10.The clasp 5 is of the folding clasp or double wallet type and has a central part 7 at the ends of which are articulated two arms 8 and 9 which are folded down and locked on the central part 7. The straps of the bracelet to the clasp are hidden by a cover plate 10.

En raison de l'encastrement des lames métalliques 1 et 2 et de leur élasticité, le bracelet en position ouverte, a tendance à rester ou revenir dans la position déployée représentée à la figure 1. En position complètement détendue, les lames 1 et 2 peuvent présenter une courbure initiale plus ou moins marquée, de telle sorte que la force élastique soit juste suffisante pour maintenir le bracelet en position déployée tel que représenté à la figure 1, sans toutefois exercer une traction trop forte sur le fermoir, ni supporter une sollicitation trop forte au niveau de l'encastrement. Ce déploiement naturel du bracelet facilite la mise en place de la montre-bracelet sur le poignet, ainsi que son enlèvement. L'âme élastique assure en outre un maintien et une courbure harmonieuse du bracelet cuir.Due to the embedding of the metal blades 1 and 2 and their elasticity, the bracelet in the open position, tends to remain or return to the deployed position shown in Figure 1. In the fully relaxed position, the blades 1 and 2 can have a more or less marked initial curvature, so that the elastic force is just sufficient to maintain the bracelet in the deployed position as shown in FIG. 1, without however exerting too strong a pull on the clasp, nor enduring too much stress strong at the level of the installation. This natural deployment of the bracelet facilitates the positioning of the wristwatch on the wrist, as well as its removal. The elastic core also ensures a support and a harmonious curvature of the leather strap.

De nombreuses variantes d'exécution sont bien entendu possibles sans sortir du cadre de l'invention. Par exemple, les lames métalliques pourraient être en un autre métal, par exemple en acier et elles pourraient être fixées rigidement d'une autre manière à la boîte, en particulier à la carrure, par exemple au moyen de vis. Les attaches 4 pourraient être rapportés. Les lames flexibles peuvent également être en un matériau non métallique, par exemple en matière synthétique telle que du Nylon (marque déposée). Une lame en matière synthétique a pour avantage de pouvoir être fabriquée par moulage et de permettre une meilleure adhérence, par collage, du cuir sur la lame.Many alternative embodiments are of course possible without departing from the scope of the invention. For example, the metal blades could be made of another metal, for example steel and they could be rigidly fixed in another way to the case, in particular to the middle part, for example by means of screws. Fasteners 4 could be added. The flexible blades can also be made of a non-metallic material, for example synthetic material such as nylon (registered trademark). A plastic blade has the advantage of being able to be produced by molding and of allowing better adhesion, by gluing, of the leather on the blade.

Claims (4)

1. Wrist-watch comprising two straps (1, 2, 6) formed of leather (6) surrounding a flexible reinforcing member, the ends of these straps being on one side secured to the watch case and on the other side hingedly connected to a folding clasp (5) in such manner that the wrist-watch is forming a closed loop in the open position of said clasp, characterised by the fact that the flexible reinforcing member is consisting of two resilient blades (1, 2) having one end rigidly connected to the watch case (3').
2. Wrist-watch according to claim 1, characterised by the fact that the resilient blades are embedded in one portion of the watch case (3').
3. Wrist-watch according to claim 1, characterised by the fact that the resilient blades are embedded and welded in a ring (3) surrounding the watch case.
4. Wrist-watch according to one of the claims 1, 2 or 3, characterised by the fact that the ends of the resilient blades which are hingedly connected to the clasp are bent back to constitute a tubular hinge member (4).
EP84200077A 1983-01-28 1984-01-23 Leather strap provided with a foldable clasp Expired EP0116384B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH484/83 1983-01-28
CH48483A CH650891GA3 (en) 1983-01-28 1983-01-28

Publications (2)

Publication Number Publication Date
EP0116384A1 EP0116384A1 (en) 1984-08-22
EP0116384B1 true EP0116384B1 (en) 1986-12-10

Family

ID=4188061

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84200077A Expired EP0116384B1 (en) 1983-01-28 1984-01-23 Leather strap provided with a foldable clasp

Country Status (7)

Country Link
EP (1) EP0116384B1 (en)
JP (1) JPS59144405A (en)
AU (1) AU2380184A (en)
CA (1) CA1217062A (en)
CH (1) CH650891GA3 (en)
DE (1) DE3461679D1 (en)
ES (1) ES277148Y (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3832614C1 (en) * 1988-09-26 1989-11-16 Iwc International Watch Co. Ag, Schaffhausen, Ch
DE60106560T2 (en) * 2001-03-12 2005-08-18 Richemont International S.A. Folding closure for interchangeable bracelet
FR2891999B1 (en) * 2005-10-18 2007-12-21 Jean Christophe Mignard HOLDING OR CLAMPING DEVICE
US9516928B2 (en) 2011-04-06 2016-12-13 Rolex Sa Watch strap strip
CN116249462A (en) 2020-06-16 2023-06-09 汤姆福特国际有限责任公司 Single watchband

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2036648A (en) * 1931-08-14 1936-04-07 Schwalberg Abraham Wrist watch strap
CH453777A (en) * 1967-11-24 1968-03-31 Lumorex Luescher Moret & Co Process for manufacturing a watch strap and watch strap obtained by this process
CH518696A (en) * 1969-11-13 1972-02-15 Paolini Jean Watch strap

Also Published As

Publication number Publication date
AU2380184A (en) 1984-08-02
EP0116384A1 (en) 1984-08-22
JPS59144405A (en) 1984-08-18
CH650891GA3 (en) 1985-08-30
DE3461679D1 (en) 1987-01-22
ES277148Y (en) 1985-05-01
ES277148U (en) 1984-10-16
CA1217062A (en) 1987-01-27

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