FR3143282A1 - BRACELET FOR BODY MONITORING DEVICE - Google Patents

Abstract

The present invention relates to a bracelet (10) for a body monitoring device comprising: a first strand (11) and a second strand (12) mounted on a housing (2) via a first end (111, 121) ; a clasp (3) disposed at a second end (112) of the first strand (11), the clasp (3) being adapted to cooperate with the second strand (12) to attach the bracelet around the wrist of a wearer; the second end (112) of the first strand (11) being adapted so that the clasp does not touch the user's skin when the bracelet (10) is attached around the wearer's wrist. Figure for abstract: Fig. 1

Description

BRACELET FOR BODY MONITORING DEVICE FIELD OF THE INVENTION

The present invention relates to a bracelet, and more particularly to a bracelet for a body monitoring device.

STATE OF THE ART

It is known to attach a watch to a wrist using a strap. A classic strap includes a fastener that allows the watch to be positioned and the strap to be adjusted to the user's wrist. In the case of a body monitoring device, it is necessary to tighten the strap around the wrist. However, tightening such a strap can be inconvenient since the clasp can penetrate the skin.

One aim of the invention is to propose a solution for modifying the tightening of a bracelet to make wearing the watch more comfortable without harming the performance of the watch.

This aim is achieved within the scope of the present invention by means of a bracelet for a body monitoring device comprising: a first strand and a second strand mounted on a housing via a first end; a clasp arranged at a second end of the first strand, the clasp being adapted to cooperate with the second strand to attach the bracelet around the wrist of a wearer; the second end of the first strand being adapted so that the clasp does not touch the skin of the user when the bracelet is attached around the wrist of the wearer.

The invention is advantageously supplemented by the following characteristics, taken individually or in any of their technically possible combinations:

- the first strand has a first part mounted on the case via the first end, the first part extending longitudinally along an axis AA from the first end, the first strand comprises a second part attached to the clasp by means of a hinge pin arranged at the second end, the first part has a first thickness, the second part has a second increasing thickness so that between the wearer's wrist and the clasp a non-zero excess thickness of the first strand is defined so that the clasp does not touch the user's skin when the bracelet is attached around the wearer's wrist;

- the second strand comprises an excess thickness between the clasp and a surface intended to be in contact with the wearer's skin when the bracelet is attached around the wearer's wrist, the excess thickness being greater than the first thickness;

- the second part extends from the first part longitudinally so that the hinge axis is eccentric relative to the longitudinal axis of the first part;

- the second part includes a concave longitudinal profile.

- the clasp is a pin buckle;

- the clasp is made of metal or plastic.

- the first strand and the second strand are made of elastomer or plastic or rubber or leather or metal material;

The invention also relates to a body monitoring device comprising a housing and a bracelet according to the invention.

Advantageously, the housing comprises at least one microneedle configured to be inserted into the user's skin, the microneedle being suitable for measuring a physiological quantity of the wearer.

DESCRIPTION OF FIGURES

Other characteristics, aims and advantages of the invention will emerge from the description which follows, which is purely illustrative and non-limiting, and which must be read in conjunction with the appended drawings in which:

There illustrates a body monitoring device according to the invention, the device comprising a bracelet according to the invention;

There and the illustrate two detailed views of a clasp of a bracelet according to the invention.

In all figures, similar elements bear identical references.

DETAILED DESCRIPTION OF THE INVENTION

In the following, the terms longitudinal direction will be used for the direction along the length of a bracelet strand, extending from a fastening area with a case to a fastening area with a bracelet clasp.

In addition, the inner surface will be designated as the surface of the bracelet strand facing the wearer's wrist, and conversely the outer surface will be the opposite surface, visible from the outside when the bracelet is worn.

There illustrates a body monitoring device 1 taking the form of a wristwatch. The body monitoring device 1 comprises a housing 2 and a wristband 10.

The bracelet 10 comprises a first strand 11 and a second strand 12, a first end 111, 121 of which is fixed to a case 2 (or main body). The fixing of the strands 11, 12 to the case 2 is for example implemented by means of a connection allowing automatic natural orientation of the strands 11, 12 on the wearer's wrist. The second end 112, 122 of the strands 11, 12 serves to mutually connect the strands 11, 12 to close and tighten the bracelet 10 around the wearer's wrist, by means of a clasp 3 which is preferably a pin buckle of known type.

According to a particular embodiment, the clasp 3 of the pin buckle type is connected to the second end 112 of the first strand 11. In this case, the clasp 3 comprises a loop 31 connected to an axis 33 housed in the second end 112, a rod 32, preferably called a pin, is located in the center of the axis 33, the second end 112 of the first strand 11 has a passage for the rod 32. The rod 32 is adapted to be housed in one of the multiple holes 4 of the second strand 12 which is adapted to pass through the loop 31.

Advantageously, the clasp 3 is made of metal or plastic. Also, advantageously, the bracelet 10 is made of elastomer, plastic, or rubber material.

The tightening of the bracelet 10 is done via the holes 4 located in the second strand 2.

Figures 2a and 2b illustrate in detail the second end 112 of the first strand 11 comprising a clasp 3 of the pin buckle type.

As can be seen in these figures, the second end 112 of the first strand 11 is adapted so that the clasp 3 does not touch the wearer's skin when the bracelet 10 is attached around the wearer's wrist. In this way, when the wearer tightens the bracelet 10 very tightly, he does not feel any discomfort from the clasp 3, the latter not being in contact with the wearer's skin.

Advantageously, the first strand 11 comprises in a longitudinal direction a first part 113 extended by a second part 114. The first part 113 is mounted on the housing 2 via the first end 111 and the first part 113 extends longitudinally along an axis AA from the first end 111. The second part 114 is attached to the clasp 3 by means of a hinge pin 33 arranged at the second end 112, the second part 114 extending from the first part 113 longitudinally so that the hinge pin 33 is eccentric relative to the longitudinal axis of the first part 113. Indeed, conventionally, the hinge pin of the clasp is centered relative to the longitudinal axis of the strand and is therefore in contact with the skin, the strand being of constant thickness over its entire length.

In a complementary manner, the first part 113 has a first thickness e1, the second part 114 has a thickness e2 increasing as it extends towards the second end 112 so that between the wearer's wrist and the clasp 3 an excess thickness E of the first strand 11 is defined so that the clasp 3 does not touch the user's skin when the bracelet 10 is attached around the wearer's wrist.

In other words, the first strand 11 comprises an excess thickness E at the second end between the clasp 3 and a surface S1 intended to be in contact with the skin of the wearer when the bracelet 10 is attached around the wearer's wrist. In particular, the excess thickness E is defined between the lowest point of the clasp 3 at the second end 112 of the first strand 11 and this surface S1.

Advantageously, the second part 114 is formed from a single piece and is an extension of the first part 113 or can be obtained by adding an additional piece on the lower surface of the second part 114 of the first strand 11 allowing this variable thickness to be obtained at the level of the second part 114 of the first strand 11. This additional piece is fixed by gluing or by any other fixing means known to those skilled in the art. The additional piece can be made of a material identical to that of the first strand or different.

The second part 114 preferably extends over a portion between a quarter and a third of the total length of the first strand 1.

In a preferred embodiment, the housing 2 preferably comprises at least one microneedle suitable for being inserted into the skin of a wearer. By “microneedle” is meant a needle whose width at the base of the needle is less than one millimeter, and whose height is between 10 µm and 1 mm. Thus, by the penetration of the microneedle into the dermis of the user, it is possible to measure the presence or quantity of an analyte in the user’s body, for example the quantity of glucose or lactate.

When at least one microneedle is inserted into the user's body, the case must be tightened via the bracelet without the bracelet clasp bothering the wearer at the risk of causing pain.

The housing 2 may preferably comprise a capsule configured to engage with the rest of the housing 2 in a removable manner. The capsule comprises, in this case, the microneedle(s). Thus, it is possible, by detaching the capsule from the housing 2, to move the housing 1 and tighten the bracelet 10, while keeping the microneedle(s) inserted into the user's skin.

Claims (10)

Bracelet (10) for body monitoring device comprising:
a first strand (11) and a second strand (12) mounted on a housing (2) via a first end (111, 121);
a clasp (3) disposed at a second end (112) of the first strand (11), the clasp (3) being adapted to cooperate with the second strand (12) to attach the bracelet around a wearer's wrist;
the second end (112) of the first strand (11) being adapted so that the clasp does not touch the user's skin when the bracelet (10) is attached around the wearer's wrist. Bracelet according to claim 1, wherein the first strand (11) has a first part (113) mounted on the case (2) via the first end (111), the first part (113) extending longitudinally along an axis AA from the first end (111), the first strand (11) comprises a second part (114) attached to the clasp (3) by means of a hinge pin (33) arranged at the second end (112), the first part (113) has a first thickness (e1), the second part has a second thickness (e2) increasing so that between the wearer's wrist and the clasp (3) a non-zero excess thickness (E) of the first strand (11) is defined so that the clasp (3) does not touch the user's skin when the bracelet (10) is attached around the wearer's wrist. Bracelet according to claim 2, wherein the second strand (11) comprises an excess thickness (E) between the clasp (3) and a surface (S1) intended to be in contact with the skin of the wearer when the bracelet (10) is attached around the wearer's wrist, the excess thickness (E) being greater than the first thickness (e1). Bracelet according to any one of claims 2 to 3, in which the second part (114) extends from the first part (113) longitudinally so that the hinge axis (33) is eccentric relative to the longitudinal axis of the first part (113). Bracelet according to any one of claims 2 to 4, in which the second part (114) comprises a concave longitudinal profile. Bracelet according to any one of the preceding claims, in which the clasp (3) has a pin buckle. Bracelet according to any one of the preceding claims, in which the clasp (3) is made of metal or plastic. Bracelet according to any one of the preceding claims, in which the first strand (11) and the second strand (12) are made of elastomer or plastic or rubber or leather or metal material. Body monitoring device comprising a housing (2) and a bracelet (1) according to any one of the preceding claims. Device according to claim 9, in which the housing (2) comprises at least one microneedle configured to be inserted into the skin of the user, the microneedle being adapted to the measurement of a physiological quantity of the wearer.