EP3266335A1 - Wristwatch - Google Patents

Abstract

Watch (1) comprising at least one box (100) and a bracelet formed by a flexible strand (2) with a first end (20) fixed to the box and an opposite second end (21) arranged to cooperate with a device fastening and adjusting the length of the bracelet. According to the invention, the adjusting device comprises a clasp (10) formed by a yoke and a lever (11) between which the flexible strand (2) slides, the clasp being hinged to the box by means of links defining an axis. rotation around which the lever (11) can be rotated to be able to move into the open position and in the closed position, the lever comprising an eccentric integral with the lever in the vicinity of the axis of rotation which is arranged to clamp the free end ( 21) of the strand against the yoke and hold the strap when the lever (11) is in the closed position.

Description

Field of the invention

The invention relates to a watch provided with a bracelet comprising, between a first end and a second opposite end, a fastening and adjusting device of the bracelet.

The invention relates to the field of devices attached to the human body, in particular time measuring devices such as watches.

Background of the invention

Bracelets, and especially watchbands, are generally of dimensions adjusted to the morphology of the user. Setting ranges are limited. Few wristbands offer quick donning or withdrawal possibilities, while ensuring a good fit and support during wear.

Traditional clasps require delicate handling, whether they are buckles with buckles, or mechanisms with folding clasp. In particular, handling with gloves is impossible. These clasps are moreover expensive, and generally comprise blunt protruding parts.

Bracelets made entirely of elastic material do not always guarantee good performance, especially when the user, for example a sportsman, submits his watch or his bracelet to strong accelerations.

Summary of the invention

The invention aims to develop a watch equipped with a bracelet without clasp in the usual sense of the term, comprising a large range of adjustment, easy to put on and take off by the user, and suitable for professional or sports use.

These objectives, as well as others which will appear more clearly later, are achieved according to the invention with the aid of a watch comprising at least one box which comprises horns, at a first side and a second side opposite the first side, and a bracelet formed by a flexible strand with a first end attached to the box and an opposite second end arranged to cooperate with a fastening device and adjusting the length of the bracelet.

According to the invention, the adjusting device comprises a clasp formed by a yoke and a lever between which the flexible strand slides, the clasp being hinged to the box by means of links defining an axis of rotation around which the lever can undergo a rotation to be able to move to the open position and in the closed position, the lever comprising an eccentric secured to the lever near the axis of rotation which is arranged to clamp the free end of the strand against the yoke and hold the bracelet when the lever is in closed position.

Thus, the object of the present invention, by its various functional and structural aspects described above, makes it possible to obtain a watch that is easy to put on and adjust to the wearer's morphology.

• l'excentrique comprend un moletage sur toute ou partie de sa surface ;
• l'excentrique comprend une denture ;
• la chape comprend des rebords latéraux pour guider le brin souple ;
• les moyens de liaisons comprennent une barrette ou une pompe ;
• le fermoir est réalisé en matériau métallique, plastique, céramique ou encore en matériau composite ;
• le brin de bracelet est en cuir, en caoutchouc, en tissu ou encore en matériau synthétique.

According to other advantageous variants of the invention:

• the eccentric comprises knurling all or part of its surface;
• the eccentric comprises a toothing;
• the yoke includes lateral flanges to guide the flexible strand;
• the connection means comprise a bar or a pump;
• the clasp is made of metal material, plastic, ceramic or composite material;
• the bracelet strand is made of leather, rubber, fabric or synthetic material.

Brief description of the drawings

• la figure 1 illustre une vue en perspective d'une montre conforme à l'invention selon un premier mode de réalisation ;
• les figures 2a et 2b représentent respectivement des vues en coupe de la montre conforme à l'invention illustrée à la figure 1.

Other particularities and advantages will emerge clearly from the description which is given hereinafter, by way of indication and in no way limiting, with reference to the appended drawings, in which:

• the figure 1 illustrates a perspective view of a watch according to the invention according to a first embodiment;
• the Figures 2a and 2b respectively represent sectional views of the watch according to the invention illustrated in FIG. figure 1 .

Detailed Description of the Preferred Embodiments

The watch according to the invention comprises at least one box 1 which has horns, at a first side and a second side opposite the first side, and a bracelet formed by a flexible strand 2 with a fixed first end 20 to the box 1 and an opposite second end 21 arranged to cooperate with a fastening device and adjusting the length of the bracelet.

As represented by figure 1 , the fastening and adjusting device according to the invention comprises a clasp formed by two elements, namely a lever 11 and a yoke 13 between which slides the flexible strand 2.

The clasp 10 is articulated to the box and the lever 11 can be rotated to be able to pass from an open position in which the flexible strand 2 is free to slide, to a closed position in which the flexible strand is immobilized.

As shown in the figures, the yoke 13 has a substantially rectangular shape and comprises two lateral flanges 130 and 131 arranged in the longitudinal direction, so as to form a passage for the flexible strand 2.

Advantageously, the width of the strand 2 is slightly less than the width of the yoke 13 to limit the friction of the strand 2 against the lateral flanges 130 and 131.

The lever 11 is articulated to the yoke 13 by one of its ends, and has a transverse axis of rotation. Advantageously, this transverse axis of rotation coincides with the articulation of the clasp 10 to the box 1.

The clasp 10 can be articulated to the box 1 by means of connecting means such as a bar 14, a pump or any other element that can hold the clasp 10 to the box 1, between the horns 101 and 102, while providing an articulation allowing the lever 11 to pivot.

According to the invention, the lever 11 comprises an eccentric 14 secured to the lever 11, the eccentric 14 being disposed under the lever, close to the axis of rotation. Such an eccentric 14 can pinch the flexible strand 2 against the yoke 13 and thus immobilize the bracelet when the lever 11 is in the closed position.

According to a first embodiment of the invention, the eccentric 14 comprises, over all or part of its surface, a knurling so as to provide a secure immobilization of the bracelet and prevent slippage of the latter.

According to another embodiment of the invention, the eccentric 14 comprises, over all or part of its surface, a toothing so as to immobilize the bracelet.

As can be seen at figure 1 , the first end 20 of the strand 2 is secured to the box 1 at a first side, between horns, for example by means of a bar.

The second end 21 of the strand 2 passes between the yoke 13 and the lever 11 in the open position.

When the wearer has adjusted the bracelet on his wrist, it is sufficient to lower the lever 11 towards the yoke 2. By this pivoting, the eccentric 14 pinches the bracelet and ensures its maintenance in the yoke 13.

To loosen the strand 2, simply exert to open the clasp by raising the lever 11.

The strand 2 forming the bracelet can be made of leather, rubber, fabric or synthetic material. One can also imagine that the second end 21 of the strand 2 comprises an extra thickness so that the strand 2 can not leave the passer inadvertently.

The invention is thus easy to handle with gloves, which may be necessary in the case of use in scuba diving for example.

Its manufacturing cost is very moderate. The invention lends itself well to a bracelet exchange, depending on the use or aesthetic considerations.

Thanks to these different aspects of the invention, there is a watch of simple design for adjusting and tightening the bracelet quickly.

Of course, the present invention is not limited to the illustrated example but is susceptible of various variations and modifications that will occur to those skilled in the art.

NOMENCLATURE

1.

Watch,

10.

Clasp,

11.

The sink,

12.

Eccentric,

13.

screed

14.

Barrette

2.

Soft strand,

20.

First end of the flexible strand,

21.

Second end of the flexible strand,

100.

Box,

101,102.

horns,

130,131.

Side edges of the screed.

Claims (7)

Watch (1) comprising at least one box (100) which has horns (101, 102), at a first side and a second side opposite the first side, and a bracelet formed by a flexible strand (2) with a first end (20) fixed to the box (100) and a second end (21) opposite arranged to cooperate with a fastening device and adjusting the length of the bracelet,
characterized in that the adjusting device comprises a clasp (10) formed by a yoke (13) and a lever (11) between which the flexible strand (2) slides, the clasp (10) being hinged to the box (100) by connecting means defining an axis of rotation about which the lever (11) can be rotated to be able to move into the open position and in the closed position, the lever (11) comprising an eccentric (14) near the axis of rotation. rotation, integral with the lever (11), and which is arranged to clamp the flexible strand (2) against the yoke (13) and hold the bracelet when the lever (11) is in the closed position. Watch (1) according to claim 1, wherein said eccentric (14) comprises a knurling on all or part of its surface. Watch (1) according to claim 1, wherein said eccentric (14) comprises a toothing. Watch (1) according to one of claims 1 to 3, wherein the yoke (13) comprises lateral flanges (130,131) for guiding the flexible strand (2). Watch (1) according to one of claims 1 to 4, wherein the connecting means comprise a bar or a pump. Watch (1) according to one of claims 1 to 5, wherein the clasp (10) is made of metal material, plastic, ceramic or composite material. Watch (1) according to one of claims 1 to 6, wherein the flexible strand (2) of the bracelet is leather, rubber, fabric or synthetic material.

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