JP3187620B2 - Method for manufacturing a dial for a watch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a timepiece dial attached with a precious stone such as diamond or ruby.

[0002]

2. Description of the Related Art As a conventional dial for a timepiece with a precious stone such as diamond or ruby, there is one shown in a sectional view of a main part in FIG. This dial is a dial substrate 31 made of metal.
A precious stone 34 is fixed to the hole 32 via an adhesive 33. The surface 31a of the dial board 31
The mirror finish, Asahi light weight or uneven pattern etc. are properly applied,
Furthermore, surface treatment such as plating and painting is performed.

As another conventional dial with a precious stone, there is one shown in a sectional view of a main part in FIG. This dial is
A pedestal 37 to which the precious stone 36 is fixed is fixed to a hole provided in the dial plate 35 made of metal with an adhesive or caulking. The surface 35a of the dial board 35 has been subjected to suitable mirror finish, basis weight, pattern and surface treatment as described above.

[0004]

In the above conventional example, in the case of the timepiece dial shown in FIG.
Since the precious stones 34 such as diamonds and rubies are directly fixed to the surface, the feeling of flatness is reduced and the sense of quality is reduced. If the surface 31a of the dial substrate 31 is a mirror surface, the precious stone 34
Is reflected on the mirror surface and looks shining more beautifully.
There is also a problem that the luxurious feeling is weakened due to the brilliancy of the sole.

In the case of a watch dial with a precious stone such as diamond or ruby, there is an image that the watch is expensive and expensive, and for the purpose of giving the illusion that the precious stone is fixed separately, the precious stone 3 is used.
It is also conceivable to make a mirror surface only around the area where the 4 is fixed, but it is difficult to make it partially mirror surface, and it is very difficult to make the mirror surface look clear and it is necessary to make the outline of the mirror surface clear At present, a dial in which precious stones 34 are directly fixed to the dial substrate 31 can be used only for limited specifications because of the technology.

In the timepiece dial shown in FIG. 21, a precious stone 36 is fixed to a pedestal 37, and is separate from the dial substrate 35.
Although it is possible to fix it higher than 5, which gives a very high-class feeling, there is a problem that the manufacturing cost is increased because it is separate.

The present invention solves the above-mentioned problems, and a precious stone such as diamond or ruby is directly fixed on a dial substrate by a simple method, and a timepiece dial having a high-class appearance as if having a separate pedestal is easily provided. To provide a method of manufacturing.

[0008]

According to the present invention, a convex portion for fixing precious stones such as diamond and ruby is formed on the upper surface of a dial substrate by embossing, and the dial is formed after forming a hole in the convex portion. The entire upper surface of the substrate is provided with a basis such as Asahi Hikari or stripe, the upper surface of this convex portion is mirror-finished by diamond cutting, and then the entire surface is subjected to a surface treatment such as plating. This is a method of manufacturing a timepiece dial for fixing the watch with an adhesive.

In order to make the color tone of the dial substrate different from the tone color of the convex portion for fixing the precious stone, during the process of the above-mentioned manufacturing method, plating is performed on the entire surface of the dial substrate after applying a basis weight. After applying a surface treatment such as clear coating, the upper surface of the convex part is mirror-finished by diamond cutting, and then a surface treatment with a color tone different from the color tone of the plating applied to the dial board is applied. This is a method for manufacturing a timepiece dial that fixes precious stones with an adhesive.

Further, when a convex portion for fixing precious stones such as diamond and ruby is formed on the upper surface of the dial substrate by embossing, a convex portion is also formed on a portion which becomes a time character at the same time. This is a method for manufacturing a timepiece dial that mirror-finishes by diamond-cutting the upper surface of a convex portion that becomes a character into a flat surface, a curved surface, or the like. Size and / or
Alternatively, the shape is changed.

In addition, at least two nails for caulking the precious stone are formed by machining on the upper surface of the projection for fixing the precious stone such as diamond or ruby.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a sectional view of a main part of a timepiece dial according to a first embodiment of the present invention, and FIG. 2 is a plan view of the timepiece dial. In the figure, reference numeral 1 denotes a dial board made of metal, and a convex portion 2 for fixing a precious stone such as diamond or ruby is formed integrally with the dial plate substrate 1 on the upper surface thereof. The upper surface is formed as a mirror surface, the other surface is formed with a basis weight pattern such as Asahi Hikari and stripes, and the entire surface is subjected to a surface treatment 3 such as Au, Rh or the like. A hole 4 is provided at the center of the projection 2 so that precious stones such as diamond and ruby can be easily fixed. Precious stones 5 such as diamonds and rubies are fixed to the holes 4 via an adhesive 6 on the projections 2.

In this embodiment, the convex portion 2 has a square shape.
It is formed at four places of 2:00, 3:00, 6:00, and 9:00, and the size is increased only at 12 o'clock. Other time characters, names, marks, and the like are formed by ordinary printing, typesetting, and the like to complete a timepiece dial.

Next, a method of manufacturing the timepiece dial will be described with reference to the cross-sectional views of the essential parts in FIGS. First, as shown in FIG. 3, a dial substrate 1 having a projection 2 is integrally formed by embossing a metal material, and then a hole 4 is formed at the center of the projection 2 by machining as shown in FIG. The holes 4 are for facilitating adhesion and fixing of precious stones such as diamonds and rubies to be described later.

Next, asahikari,
After forming a basis pattern such as a stripe, as shown in FIG. 5, the upper surface of the convex portion 2 is diamond-cut to finish a mirror surface, and as shown in FIG. 6, the entire surface is subjected to a surface treatment 3 such as Au, Rh or the like by plating. . Finally, as shown in FIG. 2, precious stones 5 such as diamond and ruby are fixed to the projections 2 via an adhesive 6.

According to the above-described manufacturing method, the convex portion 2 can be easily formed on the dial substrate 1, and the convex portion 2 is protruded from the surface of the dial substrate 1 and its upper surface is a mirror surface. Since it is different from the surface of the substrate 1, the projection 2 looks like a separate pedestal. Precious stone 5 fixed for that
Is more glittering and presents a very luxurious feeling. In addition, since the size and shape of the convex portion 2 can be freely changed, a variety of designs can be realized.

In this embodiment, the upper surface of the convex portion 2 is finished to a flat mirror surface, but may be finished to an uneven pattern, a multi-surface cut or the like. Further, after performing the surface treatment 3 in FIG. 6, a clear coating may be performed on the entire surface to protect the surface treatment 3.

FIG. 7 is a sectional view of a main part of a timepiece dial according to a second embodiment of the present invention. In the figure, reference numeral 7 denotes a dial substrate, on the upper surface of which a projection 8 for fixing a precious stone such as diamond or ruby is formed integrally with the dial substrate 7. The upper surface of the convex portion 8 is mirror-finished, and is subjected to a surface treatment 9 such as Au, Rh or the like by plating. 8, a surface treatment 10 having a different color tone from the surface treatment of Au, Rh, etc., is applied, and a clear coating 11 is applied thereon. A hole 12 is provided at the center of the projection 8 so as to easily fix a precious stone such as diamond or ruby. A precious stone 13 such as diamond or ruby is fixed to the hole 12 via an adhesive 14 on the convex portion 8.

Next, a method of manufacturing the timepiece dial will be described with reference to the cross-sectional views of the essential parts in FIGS. First, as shown in FIG. 8, a dial substrate 7 having a convex portion 8 is integrally formed by embossing a metal material, and a hole 12 is formed at the center of the convex portion 8 by mechanical processing as shown in FIG. This hole 1
Numeral 2 is for facilitating bonding and fixing of precious stones such as diamonds and rubies described later.

Next, asahikari,
After forming a basis pattern such as a stripe, as shown in FIG. 10, a surface treatment 10 such as Au, Rh or the like is applied to the entire surface by plating, and a clear coating 11 is applied as shown in FIG.
Next, as shown in FIG. 12, the upper surface of the convex portion 8 is diamond-cut to finish the mirror surface, and further, as shown in FIG. A surface treatment 9 is formed on the upper surface. Finally, as shown in FIG. 7, a noble stone 13 such as diamond or ruby is fixed to the convex portion 8 via an adhesive 14.

According to the above-described manufacturing method, the color tone of the upper surface of the convex portion 8 for fixing the precious stone 13 and the color tone of the dial board 7 can be variously changed, and the variety can be further enhanced.

FIG. 14 is a plan view of a timepiece dial according to a third embodiment of the present invention, and FIG. 15 is a sectional view taken along line AA of FIG.
In the present embodiment, when the convex portion 2 for fixing the precious stone 5 in the first embodiment shown in FIGS. 1 and 2 is formed,
At the same time, a convex portion 15 is also formed in a portion that becomes a time character, and the upper surface of the convex portion 15 is diamond-cut to a mirror surface, and is subjected to a surface treatment such as Au, Rh or the like by plating as in the first embodiment. .

According to the above-described manufacturing method, the convex portion 2 for fixing the precious stone 5 and the convex portion 15 serving as a time character can be simultaneously formed.
It is possible to provide a watch dial with a very inexpensive precious stone.

In the third embodiment, the shape of the convex portion 15 serving as a time character is round and smaller in size than the convex portion 2. However, the shape of the convex portion 15 may be rectangular, or the size may be smaller. By making various changes, a variety of designs can be realized.

FIG. 16 is a sectional view of a main part of a timepiece dial according to a fourth embodiment of the present invention, and FIG. 17 is a plan view of the main part. In the present embodiment, four claws 18 are provided on the convex portion 17.
The claw 18 secures the precious stones 20 by caulking the precious stones 20. As a method of manufacturing the dial, as shown in FIG. 19, which is a cross-sectional view of a main part and a plan view of the main part, the upper surface of the convex part 17 formed integrally with the dial board 16 by embossing When a diamond is cut into a mirror surface, four cylindrical nails 1
8 is cut in a diamond shape, and a precious stone 20 such as sapphire, ruby or the like is fixed to the hole 19 of the convex portion 17 with an adhesive 21 and then four nails 18 are swaged to form a dial of the precious stone 20. The fixing strength to the substrate 16 is maintained.

Although the adhesive 21 is used in this embodiment, it is not necessary to use the adhesive 21 if the strength can be secured. Further, although the shape of the claw 18 is cylindrical, the tip may be thinner or may be formed in a conical shape so as to be crimped all around.

[0027]

As described in detail above, according to the present invention, a convex portion for fixing precious stones such as diamond and ruby is formed integrally with the dial plate substrate on the upper surface of the dial substrate by embossing. Because the upper surface of this projection is mirror-finished by diamond cutting, it looks as if precious stones are attached to a separate pedestal, and since the precious stones look more glittery, a watch with a very high-grade precious stone Can be provided at very low cost.

Further, the surface of the upper surface of the dial substrate is subjected to a surface treatment before the upper surface of the convex portion for fixing the precious stone is diamond-cut, and the upper surface of the convex portion is further subjected to the surface treatment after the clear coating. In addition, the color tone of the surface of the dial substrate can be made different from the color tone of the convex portion seen on the pedestal, so that a variety of designs can be realized.

Furthermore, since a convex portion for fixing precious stones such as diamond and ruby and a convex portion serving as a time character are simultaneously formed by embossing, a timepiece dial with a precious stone is provided at very low cost. As well as being able to easily change the size and shape of the convex part that fixes the precious stone and the convex part that becomes the time character, it is possible to provide inexpensively a watch dial with precious stones that is very rich in design variations. It is.

When diamond-cutting the upper surface of the projection,
By leaving the nails for caulking the precious stones, the nails are integrated with the dial plate substrate. By caulking the nails, the fixing strength of the precious stones can be secured.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a timepiece dial according to a first embodiment of the present invention.

FIG. 2 is a plan view of the timepiece dial according to the first embodiment of the present invention.

FIG. 3 is a fragmentary cross-sectional view showing a step of manufacturing the timepiece dial according to the first embodiment of the present invention.

FIG. 4 is a fragmentary cross-sectional view showing a manufacturing step of the timepiece dial according to the first embodiment of the present invention.

FIG. 5 is a fragmentary cross-sectional view showing a step for manufacturing the timepiece dial according to the first embodiment of the present invention.

FIG. 6 is a fragmentary cross-sectional view showing a manufacturing step of the timepiece dial according to the first embodiment of the present invention.

FIG. 7 is a sectional view of a main part of a timepiece dial according to a second embodiment of the present invention.

FIG. 8 is a fragmentary cross-sectional view showing a step of manufacturing the timepiece dial according to the second embodiment of the present invention.

FIG. 9 is a fragmentary cross-sectional view showing a step of manufacturing the timepiece dial according to the second embodiment of the present invention.

FIG. 10 is a fragmentary cross-sectional view showing a manufacturing step of the timepiece dial according to the second embodiment of the present invention.

FIG. 11 is a fragmentary cross-sectional view showing a step for manufacturing the timepiece dial according to the second embodiment of the present invention.

FIG. 12 is a fragmentary cross-sectional view showing a step of manufacturing the timepiece dial according to the second embodiment of the present invention.

FIG. 13 is a fragmentary cross-sectional view showing a step of manufacturing the timepiece dial according to the second embodiment of the present invention.

FIG. 14 is a plan view of a timepiece dial according to a third embodiment of the present invention.

FIG. 15 is a sectional view taken along line AA of FIG. 14;

FIG. 16 is a sectional view of a main part of a timepiece dial according to a fourth embodiment of the present invention.

FIG. 17 is a plan view of a main part of FIG. 16;

FIG. 18 is a fragmentary cross-sectional view showing a manufacturing step of the timepiece dial according to the fourth embodiment of the present invention.

FIG. 19 is a plan view of a main part of FIG. 18;

FIG. 20 is a sectional view of a main part of a conventional timepiece dial.

FIG. 21 is a sectional view of a main part of a conventional timepiece dial.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dial board 2 Convex part 3 Surface treatment 4 Hole 5 Precious stone 6 Adhesive 7 Dial board 8 Convex 9 Surface treatment 10 Surface treatment 11 Clear coating 12 Hole 13 Precious stone 14 Adhesive 15 Convex part 16 Dial board 17 Convex part 18 nails 19 holes 20 precious stones 21 adhesive

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) G04B 19/06 G04B 19/10-19/14 G04B 45/00

Claims (5)

(57) [Claims] 1. A convex portion for fixing a precious stone such as diamond or ruby is formed on at least one place on the upper surface of a dial substrate by embossing, and a hole is formed in the convex portion. After forming a basis pattern such as Asahi light or stripe on the entire upper surface, the upper surface of the convex portion is mirror-finished by diamond cutting, and the entire surface of the dial substrate is subjected to a surface treatment such as Au, Rh or the like by plating. A method for manufacturing a timepiece dial, wherein precious stones such as diamond and ruby are fixed to the projections with an adhesive. 2. A convex portion for fixing precious stones such as diamond and ruby is formed on at least one place on the upper surface of the dial substrate by embossing, and after forming a hole in the convex portion, the convex portion of the dial substrate is formed. After forming an area pattern such as Asahi light and stripe on the entire upper surface, further applying a surface treatment such as Au, Rh, etc. by plating, applying a clear coating, and then finishing the upper surface of the convex portion to a mirror surface by diamond cutting. A timepiece dial manufacturing method, characterized in that a surface treatment having a color tone different from the color tone of the plating of Au, Rh or the like is performed, and then a precious stone such as diamond or ruby is fixed to the convex portion with an adhesive. 3. When a convex portion for fixing precious stones such as diamond and ruby is formed on the upper surface of the dial substrate by embossing, a convex portion is also formed on a portion which becomes a time character at the same time. 4. The method of manufacturing a timepiece dial according to claim 1, wherein the upper surface of the convex portion is diamond-cut into a flat surface, a curved surface, or the like so as to be mirror-finished. 4. The method of manufacturing a timepiece dial according to claim 1, wherein the size and / or shape of the convex portion is changed depending on a place where the convex portion is formed. 5. An upper surface of a convex portion for fixing precious stones such as diamond and ruby by machining at least 2
5. The method according to claim 1, wherein a claw portion for caulking the precious stone is formed at a location.