CN215642253U

CN215642253U - Skeleton watch

Info

Publication number: CN215642253U
Application number: CN202022799868.6U
Authority: CN
Inventors: V·劳切拉; L·热尔蒙德; F·夏夏
Original assignee: Montres Breguet SA
Current assignee: Montres Breguet SA
Priority date: 2019-11-27
Filing date: 2020-11-27
Publication date: 2022-01-25
Anticipated expiration: 2030-11-27
Also published as: EP3828645A1

Abstract

And (4) a skeleton table. The utility model relates to a skeleton watch arranged to be placed on a support, the watch comprising a case with a transparent back and a glass, and a set of members forming the movement of the skeleton watch, said members being arranged inside the case, between the back and the glass, and being wholly or partly visible through the glass. According to the utility model, the back of the watch comprises a semitransparent coating arranged to hide the support when the watch is placed on the support and to make the movement visible through the back of the watch when the watch is not on the support.

Description

Skeleton watch

Technical Field

The utility model relates to the technical field of timepieces. More particularly, the present invention relates to a skeleton-type watch including a transparent front and back. The term "watch with a frame" (monttresquette) is understood to mean a watch comprising a movement in which certain parts (usually its dial, its main plate and/or its plates) are hollowed out in order to make the movement assembly visible to the wearer of the watch.

Background

Such tables have been in existence for a long time. At its most basic, the mechanical structure that constitutes it can be revealed by simply taking the dial of the table below. Since some components may be hidden from view by the main and clamp plates used to secure the roller gears together, only a portion of the mechanical structure may be exposed. It is therefore proposed to make the main clamping plate and the clamping plates as hollow as possible, so that the components hidden under these elements are visible. Thus, we have obtained a so-called skeleton table in which most of the components constituting the skeleton table are made visible. This type of watch shows, among other things, the large number of elements that make up the watch and how intricate and complex these elements have. This is the case in particular for timecode watches or watches with very complex functions.

In such a timepiece device, the face and back of the watch may be made of a transparent material so that the movement is also visible from the face and back.

In this configuration, the wearer's skin is visible through the back and front, which detracts from the aesthetics of the watch.

SUMMERY OF THE UTILITY MODEL

The present invention relates to a skeleton watch which avoids the above-mentioned drawbacks and in particular makes it possible to hide the wrist of the wearer when wearing the watch and to make the movement visible from the back of the watch when not wearing the watch.

To this end, the utility model provides a skeleton watch designed to be placed on a support, the watch comprising a case with a transparent back and a glass, and a set of members forming the movement of the skeleton watch, said members being arranged in the case, between the back and the glass, and being visible in whole or in part through the glass.

According to the utility model, the back of the watch comprises a semitransparent coating arranged to hide the support when the watch is placed on the support and to make the movement visible through the back of the watch when the watch is not on the support.

According to other advantageous variants of the utility model:

-the coating is a metal layer selected from one of chromium, titanium, chromium nitride or aluminum, the thickness of said layer being between 1nm and 100 nm;

-a coating is deposited on the outer surface of the front and back;

-a coating is deposited on the inner surface of the front and back;

-a coating is deposited on the inner and outer surfaces of the front and back;

-the front and back are made of transparent material;

-the transparent material is sapphire glass;

-the transparent material is mineral glass;

-the coating is a transparent liquid crystal display;

-the coating is a coating made of an electrochromic material;

the front and back may comprise a transparent protective layer superimposed on said metal layer;

the watch comprises a quartz movement or a mechanical movement.

Drawings

The features and advantages of the present invention will become apparent upon reading the following detailed description and upon reference to the accompanying drawings.

Fig. 1 and 2 show a top view and a cross-sectional view, respectively, of a skeletal table in accordance with a preferred embodiment of the present invention.

Fig. 3 is a schematic illustration of the back of a watch according to the utility model.

Detailed Description

The present invention relates to a skeleton-type watch provided with at least one photovoltaic cell, also referred to herein as a solar cell or simply a cell.

Fig. 1 and 2 show a skeletal watch 1, which generally comprises a watch case formed by a middle part 2, a watch glass 3 and a watch back 4. The watch glass is fixed to the intermediate part 2 by means of an outer ring using conventional methods. In the example shown, the watch case houses all the components of a conventional mechanical movement. In particular, it can be seen in the figures that this timepiece movement comprises a support structure formed by a main plate 5 having a flange which rests on a nesting circle (circle d' embo î tage) machined in the middle part 2 of the case and is held in place against this circle by means of an outer ring.

The support structure of the movement comprises, in addition to the main plate 5, a first plate 6, a second plate 7 and a third plate 8, all of which are fixed to the main plate 5.

The mechanical structure of the timepiece movement also comprises, in particular, a barrel, a winding mechanism, a train motor and an adjustment member mounted between the main plate 5 and one of the three

plates

6, 7, 8. The winding stem passes through the middle part 2 of the case of the watch and is driven by winding crown 10. According to a variant not shown, the movement may be a quartz movement.

The idea of the skeleton watch is the back 4 of the case of the watch.

According to the utility model, the watch back 4 is made of sapphire glass and comprises a translucent coating 40, this translucent coating 40 being arranged to conceal the support when the watch is positioned thereon and to make the movement 5 visible through the back 4 when the watch is not positioned thereon. Obviously, the front and back may be made of any other type of glass, such as mineral glass, or of a transparent material, such as Polymethylmethacrylate (PMMA).

For example, the support may be the wrist of the wearer, or a support for displaying a watch in a showcase.

The coating can be deposited by means of PVD on the outer surface of the face-back 4 (i.e. the surface in contact with the support) and comprises a layer of non-allergenic metal or metal alloy, the thickness of the coating 40 varying between 1nm and 100nm depending on the metal or alloy used. The coating may also be deposited on the inner surface of the face-back 4 or on both surfaces.

The metal layer or metal alloy layer may be selected from chromium, titanium, chromium nitride and aluminium.

For example, in the case of an aluminum layer, the thickness of this layer is between 1nm and 40nm, which is adjusted according to the thickness of the transparent front and back 4. The thickness of the layer should also be selected according to the desired reflectivity and transmissivity.

According to a first variant of the utility model, the coating is a transparent liquid crystal display which can be activated by the movement and thus obscures the watch glass.

According to a second variant, the coating is made of electrochromic material.

According to a particular embodiment of the utility model, the front and back 4 comprise a transparent protective layer 41 superimposed on the coating 40, for example to protect it from scratches.

According to another embodiment, not shown in the figures, the coating 40 is deposited on the inner surface of the transparent front and back 4. Such an embodiment makes it possible to omit the protective layer 41.

Of course, the utility model is not limited to the examples shown and is susceptible to various changes and modifications, as will be apparent to those skilled in the art.

Claims

1. A skeleton watch (1), characterized in that: arranged to be placed on a support, the skeleton watch (1) comprising a case having a transparent back (4) and a crystal (3), and a set of members forming a movement (5) of the skeleton watch (1), said members being arranged inside the case, between the back (4) and the crystal (3), and being wholly or partly visible through the crystal (3), the back comprising a translucent coating arranged to conceal the support when the skeleton watch is placed on the support, and to make the movement (5) visible through the back when the skeleton watch is not on the support.

2. Skeletal table (1) according to claim 1, characterized in that the coating is a metal layer selected from one of chromium, titanium, chromium nitride or aluminium, the thickness of said layer being between 1nm and 100 nm.

3. Skeletal table (1) according to claim 1 or 2, characterized in that the coating (40) is deposited on the outer surface of the back (4).

4. Skeletal table (1) according to claim 1 or 2, characterized in that the coating (40) is deposited on the inner surface of the back (4).

5. Skeletal table (1) as in claim 1 or 2, characterized in that the coating (40) is deposited on the outer and inner surface of the back (4).

6. Skeletal table (1) according to claim 1 or 2, characterized in that the coating is a transparent liquid crystal display.

7. Skeletal table (1) according to claim 1 or 2, characterized in that the coating is a coating made of electrochromic material.

8. A skeletal watch (1) as in claim 1 or 2, characterized in that the back (4) is made of transparent material.

9. Skeletal table (1) according to claim 8, characterized in that the transparent material is sapphire glass.

10. Skeletal table (1) according to claim 8, characterized in that the transparent material is mineral glass.

11. Skeletal table (1) according to claim 1 or 2, characterized in that the back of the table comprises a transparent protective layer (41) superimposed on the coating (40).

12. Skeletal watch (1) according to claim 1 or 2, characterized in that it comprises a quartz movement or a mechanical movement.