FR2580832A1 - CASE OF WATCH BRACELET - Google Patents

Abstract

An airtight wrist-watch casing comprises a flat, tubular, transparent main body 1, a bar-like inner case 8 of reduced cross section mounting the movement and a pair of tightly sealed end closures 5. This provides the visual effect of transparency as in a see-through wrist-watch, while providing enhanced waterproof protection of the movement. The end closures 5 carry means 4 for attaching a wrist strap.

Description

The present invention relates to a boot intended for

  to contain the movement of a wristwatch.

  We already know such a case of wristwatch formed with a reduced number of elements so that the set made has few connections and has a lower cost than other housings. In addition,

  these achievements have shown that they can be. étan-

  because of the reduced number of connections. These woods

  thirds are usually considered as one-piece shoemakers. In some of them, as described in particular in published Japanese Utility Model Application No. 96285/1983, the sealing is in

  further increased by using a mounting such as

  tion is introduced into position in the housing through an opening defined in one side of the housing, so that

  the size of the opening can be reduced.

  However, these known wristwatch housings pose a problem because the realization and construction are more or less limited especially by the need of the

  housing, so that it is almost impossible to

  sible to release the case design of the form

  of the movement that it is intended to house.

  Given the significant progress made in the field of

  whereas recent portable movements including

  highly integrated fired and extremely small piezoelectric oscillators were made with a size of

  more and more weak. However, this trend towards mini-

  turing has the disadvantage of leading to

  movements that are so small that they can not be conveniently worn on the wrist and are so small that simply reading the time

already efforts of attention.

  The invention relates to the resolution of the aforementioned problems and it relates in particular to a simple construction housing, having an excellent seal and intended to house the movement of a wristwatch. She

  such a case which gives a great freedom of

2 2580832

  for the aesthetic realization.

  More specifically, the invention relates to a wristwatch housing comprising a main body of thin tubular shape, formed of a transparent material and having a size suitable for mounting on the wrist, an inner body of reduced section placed in the part internal housing, and two covers for closing the open ends of the housing, each cover having,

  on its outer face, a connecting member of the end

mite of a watch bracelet.

  Other features and advantages of the invention

  will be better understood by reading the description

  which will follow examples of embodiment and with reference to the attached drawings in which:

  Figure 1 is an exploded perspective of an example

  a case of a wristwatch according to the invention; Figure 2 is a sectional view of most of the embodiment of Figure 1; Figure 3 is an exploded perspective of another embodiment of the invention; and Figure 4 is an exploded perspective of another

  embodiment of the invention.

  We first refer to Figures 1 and 2 which represent

  feel a wristwatch casing according to a preferred embodiment of the invention, comprising a main portion 1 of tubular form made of a transparent or semi-transparent material, for example glass or polystyrene, having dimensions suitable for mounting on the wrist. Each of the open ends of the tubular main part 1 is sealingly closed by the stepped end 8 of a cover 5 with interposition of a seal 3 to the connection between the part

main 1 and the lid 5.

  An internal body 8 in which the movement 9 is

  put in position, is placed in the main part 1.

  The length of the inner body 8 is such that it is fixed

  at opposite ends to the inner faces of the covers

  key 5 respectively. In addition, the inner body 8 may preferably be made in a bar or plate of reduced section so that there is a lot of space

  above its surface within the main part of

  blade 1. The inner body 8 may be gilded on its surface,

  for aesthetic reasons. Opposite sides of

  The inner body 8 can be fixed to the lid by screws and the lid 5 has a connecting member 5 of the end of a watch strap. A cavity is formed on the underside of the inner body 8

  so that it houses the movement 9 which is fixed there.

  The movement 9 is placed in the cavity 10 so that the needles 11 and 12 of the hours and

  minutes, mounted at the upper end of the axis, exceeded

  of the surface of the inner body 8, the winder 13 being placed on the side, the assembly being closed so as to

  sealed by a lower cover 9.

  During assembly, one of the covers is first fixed to the end face of the body 8 by screws 7, and

  the body 8, with the lid 5, is introduced by the end

  open mismatch of the main portion 1 to the maximum so that the free face of the body 8 appears at the opposite open end. The other cover 5 is fixed at this other end by screws 7 so that the inner body 8 is sealed inside the housing.

  main part 1. Given this simplicity of

  truction, the main part can be formed practically

  any transparent or semi-transparent material

  convenient in practice, in a virtually watertight manner.

  Materials whose implementation is difficult, for example mineral glasses, can be used because the construction of the main part 1 of the housing

does not require such work.

  In addition, according to the invention, the housing can be made with a configuration that increases the visual effect of transparency, for example in the case where the bracelet is itself transparent, the defined space above the surface of the inner body and below the transparent top face of the main part being used best. In addition, the overall configuration gives

  excellent protection of the movement 9, enclosed

  in the cavity 10 by the lower cover 11 which

  close the cavity and by the main part.

  FIG. 3 represents a second embodiment of the invention similar to the preceding embodiment, in which one of the covers 25 is integral with a mounting base 28 whose length is substantially equal to that of the main body 21 if although the other end is fixed to the inner face of the other lid by a fixing member 29 formed at this end,

  the mounting base 28 allowing the arrangement of the movement

9.

  Referring now to FIG.

  A third embodiment similar to the first but wherein two end plates 32 are located between the main portion 1 and covers 35 disposed at opposite ends of the main portion 1. The end plate 32 is attached to the cover 35. by screws 37 with interposition of a seal or sealing material which can be applied to the inner face of the plate 32. In this embodiment, the inner body 38 carrying the movement is inserted inside. of the main part 31 by an opening 33 formed

  in one of the end plates 32.

  Of course, various modifications can be made by those skilled in the art to the shoemakers that have just been described as non-limiting examples only.

  without departing from the scope of the invention.

Claims (5)

  1. Wristwatch case, characterized in that it comprises a main part (1) of tubular form   thin, made of a transparent material and of   sound suitable for mounting on the wrist of a human being, an internal body (8) of reduced section placed inside the main part and intended to carry the movement of a watch, and two covers (5) having connecting members of a watch strap ez intended to close the open ends of the main part. Housing according to claim 1, characterized in that the inner body (8) is in the form of a bar or a plate of axial length substantially equal to that of the main part so that the internal body is fixed to its two ends to the internal faces lids.   3. Housing according to claim 1, characterized in that it comprises a mounting base (28) integral with the inner face of one of the covers (25) and intended to carry the movement of a watch, the base of mounting having an axial length substantially equal to that of the main portion and having at its opposite end a connecting member (29) for attachment to the inner surface of the other cover, the mounting base   being introduced inside the main part.   4. Botter according to claim 1, characterized   in that the covers (35) close the open ends   respective ones of the main part, with interposition an end plate (32).   Housing according to claim 4, characterized   in that one of the end plates (32) has an opening   ture (33) intended to allow the introduction of the inner body attached to the inner surface of the lid of the corresponding side inside the main part,