JPH07280957A - Fixing structure of decoration member of timepiece case - Google Patents

Abstract

PURPOSE:To provide a fixing structure of a decoration member which facilitates working and coupling work and is high in decorativeness. CONSTITUTION:A base part 4a of a decoration member 4 is sandwiched between a step part 2a provided on an upper shell 2 and a top surface part of a lower shell 3 and welded securely on the step part 2a. A slight gap M is provided on the upper slope 2c of the upper shell 2 and in the rear of the decoration member 4. It is suffice to weld the base part 4a securely on the step part 2a, thereby facilitating working and coupling work. By the gap M, the upper shell 2 and the decoration member 4 are emphasized as separate members.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing structure for a decorative member of a watch case.

[0002]

2. Description of the Related Art Conventionally, most decorative patterns of watch cases are formed integrally by press working.
However, in order to make the ridgeline of the decorative pattern clearer, there is also a product in which a decorative member, which is a separate decorative pattern and separated from the watch case, is combined with the watch case and is on the market. ing. Adhesion or brazing is generally used as the joining method, but brazing is preferable from the viewpoint of the strength of joining.

FIG. 4 is a side sectional view of the structure in which the watch case and the decorative member are brazed. The decorative member 22 includes
A mounting foot 22a is formed, while a watch case
A fixing hole 21a is formed in the case 21 so as to penetrate to the inner side surface of the watch case 21. Then, the mounting foot 22a of the decorative member 22 is attached to the fixing hole 21 of the watch case 21.
a, and the fixing hole 21 and the end of the mounting foot 22a.
A is brazed in the vicinity of the inner surface of the watch case 21 so as to be joined and fixed. Reference numeral 23 is a brazing portion showing a brazed portion.

[0004]

In the above-mentioned fixed structure,
The watch case must be drilled through the fixing holes. Therefore, as the thickness of the watch case increases, it becomes more difficult to form the fixing hole. Further, in the above-mentioned fixing structure, brazing must be performed near the inner surface of the watch case. Therefore, the smaller the inner diameter of the watch case, the more difficult the brazing work. Furthermore, when a brazing material pool that protrudes inward is generated on the inner surface of the watch case, the protrusion of the brazing material hinders the formation of a module or support frame inside the watch case. There was a problem of not being able to deliver.

The object of the present invention is to solve the above-mentioned problems, to facilitate the working and joining work, to improve the workability thereof, and to prevent the assembly and function of the timepiece from being adversely affected even if a brazing material pool or the like occurs. It is intended to provide a fixing structure for a decorative member that does not extend. At the same time, the fixing structure of the decorative member of the present invention is also intended to provide a decorative property with a three-dimensional effect which has never been obtained.

[0006]

In order to achieve the above object, the structure of the present invention comprises a lower case body, an upper case body and a decorative member of a timepiece case, the surfaces of the lower case body and the upper case body facing each other. At least one surface has a step portion, while the decorative member has a base portion arranged on the step portion and at least one decorative portion via the base connection portion, respectively,
The base portion is disposed and fixed to the step portion.

Further, it is effective that a part of the decorative portion of the decorative member is provided on the surface of the timepiece case.

[0008]

Embodiments of the present invention will be described in detail below with reference to the drawings. 1 is a side sectional view of a watch case showing a fixing structure of a decorative member of the present invention, FIG. 2 is a partial perspective view of a watch case showing a fixing structure of a decorative member of the present invention, and FIG. It is a back view of the upper body which shows the fixing structure of the decorative member of this invention.

The watch case 1 is composed of an upper body 2 and a lower body 3, and the upper body 2 and the lower body 3 are press-fitted and fixed via a packing 5. At this time, the facing surfaces of the upper body 2 and the lower body 3 which are combined with each other are shown in FIG.
a and the upper surface portion 3a. On the lower surface portion 2a of the upper body 2,
A step portion 2b which is a concave portion opened at the outer edge of the upper body 2
Is provided.

On the other hand, the decorative member 4 includes a base portion 4a and a decorative portion 4
b and. The base portion 4a is a thin plate-shaped piece, and is arranged and fixed to the step portion 2b. The base 4
The material thickness of a is formed to be slightly thinner than the step depth of the step portion 2b, and as a result, a step, that is, a gap, is formed between the lower surface of the base portion 4a and the lower surface portion 2a of the upper body 2. L is formed. Further, a portion of the base portion 3a, which is disposed and fixed to the step portion 2b, has a shape similar to that of the step portion 2b and is formed to be slightly smaller. The portion of the base portion 4a protruding from the outer edge of the upper body 2 serves as a connecting portion 4c, and the substantially U-shaped decorative portion 4b is connected and fixed to the connecting portion 4c.

To obtain the timepiece case 1, first, the base portion 4a of the decorative member 4 is disposed and fixed to the step portion 2b of the upper body 2, and then the upper body 2 is press-fitted into the lower body 3. Fix it. Then, the base portion 4 a is positioned so as to be sandwiched between the upper body 2 and the lower body 3.

Now, the base portion 4a of the decorative member 4 and the step portion 2b of the upper body 2 are joined by a method such as adhesion, bonding or welding. Turn the torso 2 over and place it horizontally,
Compared with the work on the inner surface inside the watch case in the conventional method described above, the work can be performed on an open plane,
This is extremely easy. In addition, the upper body 2
However, no matter how small the work, the workability does not deteriorate unlike the conventional method, and the work can be performed efficiently. Further, as compared with the case where the fixing hole which is indispensable in the conventional method is penetrated, the recessed portion of the stepped portion 2b is simple, and therefore the processing is also easy.

Further, the base portion 4a and the step portion 2b are
It is conceivable that an adhesive agent reservoir or a loWer material reservoir may be projected When bonded by bonding or loWing.
However, since there is the gap L between the lower surface of the base portion 4a and the lower surface portion 2a, only an adhesive agent reservoir or a loWer material reservoir protrudes in the gap L, which is functional and functional. There is no harm. For example, when assembling the upper body 2 and the lower body 3 by press-fitting and fixing, there is a problem in that the protrusion of the adhesive agent reservoir or the roller material reservoir interferes and the lower surface portion 2a and the upper surface portion 3a are not joined. , Can be skillfully avoided.

FIG. 3 is a view in which the step portion 2a and the base portion 4a are joined and fixed by laser welding.
Reference numeral 6 in the drawing denotes a laser welded portion which is a portion welded by laser welding. As mentioned above, the upper body 2
For bonding the decorative member 4 and the decorative member 4, bonding or brazing can be performed, but laser welding is more advantageous in terms of strength reliability and workability. In other words, if laser welding is used, the fixing force is strong, and unlike bonding or brazing, even if a work mistake is made, it does not have a great influence on other parts, and the finished state is very beautiful compared to others. Therefore, workability is also improved.

The connecting portion 4c and the ornamental portion 4b are formed in various shapes other than those shown in the drawing in accordance with the design of the timepiece case 1. Needless to say, the surface finish and plating of the connecting portion 4c and the decorative portion 4b can be variously changed. Further, if the base portion 4a is the same and only the decorative portion 4b is compatible with and connected to a different decorative portion, various decorative properties can be provided at a low cost in accordance with the design of the watch case 1. , Even more effective. A plurality of the decorative portions 4b may be connected and fixed to the connecting portion 4c, or a plurality of the step portions 2b may be recessed in the upper body 2 and the decorative member 4 may be arranged in each of the concave portions. You may fix it. Further, a recess similar to the stepped portion 2b may be provided in the upper surface 3a of the lower body 3, and the base 4a of the decorative member 4 may be disposed and fixed in the recess.

By the way, as shown in FIGS. 1 and 2, the tip of the decorative portion 4b is bent along the upper sloped portion 2c of the upper body 2 and protrudes to the upper surface of the upper sloped portion 2c. There is. In this way, a part of the decorative portion 4b is set to the watch case.
By disposing the watch case 1 on the surface of the watch case 1,
In addition, it is possible to provide decorativeness and fun that are not available in the past. It is also possible to dispose the decorative portion 4b and the surface of the watch case 1 in contact with each other, but a slight gap M is provided between the decorative portion 4b and the upper sloped portion 2c. If the decorative portion 4 is provided and arranged without contacting each other,
It can be emphasized that b and the timepiece case 1 are separate members, not integrated, and the decorative portion 4b appears to be three-dimensionally lifted from the surface of the timepiece case 1. It is particularly preferable because the cloth 1 can be provided with richer decorative properties.

[0017]

As described above, according to the present invention, a step portion is formed on at least one surface of the timepiece case where the lower case body and the upper case body are opposed to each other in order to connect the decorative member to the timepiece case. All that is required is that the processing is extremely easy. Further, the work of joining the base of the decorative member to the stepped portion can be performed easily, for example, because the upper body may be turned upside down and placed horizontally. Further, even if an adhesive deposit, a brazing material deposit, or the like occurs, it does not adversely affect the assembly and function of the timepiece.

Further, a part of the decorative portion of the decorative member is
Since it is arranged on the surface of the timepiece case, it is possible to give the timepiece case an unprecedented decorativeness and fun. In addition, since a slight gap is provided between the decorative portion and the surface of the watch case, the decorative portion looks three-dimensionally lifted from the surface of the watch case. Can be richly decorated.

[Brief description of drawings]

FIG. 1 is a side sectional view of a watch case showing a fixing structure for a decorative member of the present invention.

FIG. 2 is a partial perspective view of a watch case showing a fixing structure for a decorative member of the present invention.

FIG. 3 is a rear view of the upper body showing the fixing structure for the decorative member of the present invention.

FIG. 4 is a side sectional view of a structure in which a watch case and a decorative member are brazed in a conventional example.

[Explanation of symbols]

 1 Clock Case 2 Upper Body 2a Lower Surface 2b Step 2c Upper Slope 3 Lower Body 3a Upper Surface 4 Decorative Member 4a Base 4b Decorative 4c Joining 5 Packing 6 Laser Welding L Gap M Gap 21 Clock Case 21a fixing hole 22 decorative member 22a mounting foot 23 brazing part

Claims (2)

[Claims] 1. A watch case including a lower case, an upper case, and a decorative member, wherein at least one surface of the lower case and the upper case, which face each other, has a step portion. The decorative member has a base portion arranged on the step portion and at least one decoration portion via the base connection portion, and the base portion is arranged and fixed on the step portion. Fixing structure for case decoration. 2. The fixing structure for a decorative member of a watch case, wherein a part of a decorative portion of the decorative member is provided on a surface of the watch case.