JPS60260882A - Dial for timepiece - Google Patents

Abstract

PURPOSE:To prevent the distortion, deformation, etc. of the surface of a dial body in the stage of fixing a setting character to a dial by inserting the led of the setting character into the leg hole of the dial body and fixing the character and the dial body by using an adhesive agent. CONSTITUTION:The dial for a timepiece is formed by coating the adhesive agent to the rear of the setting character 21 pressfitted and fixed with a setting character body 22 having a shell construction and a setting leg 20 having a solid construction, inserting the leg part into the leg hole 16a of the dial body 16 and fixing the character 21 and the body 16 by the adhesive agent 17. The adverse influence is not given to the surface of the dial body and the distortion, deformation, etc. are obviated by the above-mentioned constitution in the stage of fixing the character to the dial.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a watch dial in which a typesetting part is fixed to a typesetting body and is fixed to a dial body. [Prior Art and Problems] Conventionally, metal Typesetting is formed by providing two typesetting sections consisting of the entire cylindrical area on the bottom surface of the typesetting body, and making a hole for the typesetting section in the typesetting section of the first dial body, pushing the typesetting section in, and typesetting from the back side of the first dial body. The foot was fixed by caulking, but when fixing the typesetting on the ultra-thin dial body - In the process of caulking the typesetting foot, the mark of the caulking tool appears on the dial surface as a distortion and deformation, and the one dial plate. The product value was reduced by deteriorating the appearance quality.

A conventional example will be explained based on the drawings. 1 and 2 show the prior art. FIG. 1 is a perspective view of the character 1C. FIG. 2 is a cross-sectional view of a typesetting section in which typesetting is fixed to a dial body. The typesetting part 1a of the typesetting part 1 is inserted into the typesetting part hole 2b of the dial main body 2, and the back surface of the dial main body 2θ) and the foot part are crimped and fixed using the crimping tool 6. 2C shows the mark of the caulking tool 6, and at this time, distortion deformation 2a occurs around the typesetting on the surface of the dial body 20 due to the pressure of the tool during caulking.

This distortion was very bad in terms of appearance, and the appearance quality standards for a single part could not be satisfied.

[Purpose of the invention]

An object of the present invention is to solve the above problems and provide an ultra-thin dial that satisfies MA quality standards.

[Structure of the invention]

The present invention forms typesetting by fixing a typesetting part having a shell structure or a typesetting part having a solid structure to a typesetting body by press-fitting and a combination of adhesive. This watch dial is characterized by being inserted into a hole for the typesetting part of the main body, and fixing the typesetting and the dial body using an adhesive.

[Embodiments of the invention]

An embodiment of the present invention will be described below based on the drawings.

3 to 14 show an embodiment of the present invention. FIG. 3 is a perspective view of typesetting, FIG. 4 is a sectional view taken along line A-A in FIG. 3, and FIG. It is a BB sectional view. Typesetting foot 6a
The typesetting part 6 having the above-mentioned typesetting part 6 is press-fitted into the typesetting body 5 as shown in FIG. 5, and is adhered with adhesive 16 as shown in FIG. The typesetting 4 having the typesetting foot 6a on the lower side of the typesetting main body 5 is completed as shown in FIG.

FIG. 6 is a perspective view of the typesetting section, and the typesetting foot 6 has a shell structure and consists of a typesetting foot 6a and a typesetting foot 6b. If the distance X between the two typesetting feet 6a protruding from the lower side of the typesetting foot 6b is designed to be the minimum typesetting length, it can be used as a typesetting part on a typesetting body of any length and shape. I can do it.

In other words, even if the length of the typesetting main body 5 changes depending on whether the watch is a powerful one or a support type, there is no need to manufacture the typesetting part 6 due to changes in the length and shape of the typesetting each time - one type of typesetting. The section can accommodate various typesetting bodies.

FIG. 7 is a cross-sectional view of a plastic boat in the process of manufacturing a typesetting section. 7 is a plastic boat shape - 8 is an electroformed metal layer -
Reference numeral 9 indicates a cavity, and the electroformed metal layer 8 is electroformed from nickel and has a thickness of jO~30μ. Since the typesetting part 6 is a shell electroformed with a hollow part 9, the electroformed metal layer 8 is made of nickel because strength is taken into consideration, and because it is desired to be an elastic body when press-fitting with the typesetting body. It was electroformed. After electroforming, machining is performed up to the E-line, and the one-set leg 6 is peeled from the plastic to form a finished product.

FIG. 8 is a cross-sectional view of the plastic boat in the process of manufacturing the typesetting body. 101 plastic boat shape.

11 indicates an electroformed metal layer, 14 indicates a cavity, and electroformed metal layer 1.
1 was electroformed from copper with a thickness of 20-100μ. The purpose of electroforming the electroformed metal layer 11 is to facilitate the drilling of holes for press-fitting the typesetting part and to improve the fitability with the typesetting part. - Figure 10 is a perspective view of the plastic boat shape shown in Figure 9. Figure 10 is a cross-sectional view of the process of machining the press-fit fitting hole of the typesetting foot body part in the electroformed metal layer of Figure 9, and -12 is the press-fit fitting hole; 15 is a tool for drilling holes. FIG. 11 is a perspective view of a plastic boat shape that has been drilled by the process shown in FIG. 10.

There are two press-fit fitting holes 12 in the typesetting leg portion 6b.

FIG. 12 is a sectional view showing a state in which the typesetting section is press-fitted into the typesetting body, and the press-fitting hole 12 provided in the typesetting body 5 is shown in FIG.
The typesetting foot body portion 6b was press-fitted into the plate. Typesetting foot part 6b
However, due to the shell structure - it has good elasticity - it can be fitted snugly and firmly fixed.

FIG. 13 is a plan view showing a state in which the typesetting body and the typesetting portion are adhered and fixed with an adhesive. Hollow portion 1 of typesetting body 5
An adhesive 13 is injected into A and hardened to firmly fix the typesetting body 5 and the typesetting portion 6.

After the adhesion of the typesetting part 6 is completed, the typesetting body 5 is peeled off from the plastic boat shape 10 and plated with a decorative finish to form the typesetting 4.

Figure 14 shows Maki 1 with typesetting fixed to the dial body.
It is a sectional view of a character part. When the typesetting foot 6a of the typesetting 4 is inserted into the typesetting hole 16a of the dial main body 16 and the part of the foot protruding from the back side of the dial main body is mechanically removed, the typesetting foot 6a is removed.
Since it has a shell structure, there is a hole at the tip of the typesetting foot 6a.Adhesive 17 is injected through the hole at the tip of the typesetting foot 6a, and typesetting 4 is applied.
and the dial body 16 are fixed together.

FIG. 15 is a sectional view showing another embodiment of the typesetting portion of the dial plate of the present invention, in which a typesetting main body 22 having a shell structure and a typesetting portion 20 having a solid structure are bonded to the back surface of the typesetting 21 which is press-fitted and fixed. Apply the agent and attach the typesetting foot to the typesetting part hole 1 of the dial body 16.
Insert it into 6a.

This is a watch dial in which typesetting 21 and a dial main body 16 are fixed with an adhesive 17. The embodiment of FIG. 15 is the same as that of FIG.
The difference from the embodiment in FIG. 4 is that typesetting 4 in FIG. 3 has a typesetting part 6 with a shell structure, whereas typesetting 21 in FIG.
The method is the same except that it has a typesetting section 20 with a solid structure and adhesive 17 is applied to the back side of the typesetting type 21 to fix the typesetting 21 to the dial body 16.

〔Effect of the invention〕

As is clear from the above embodiments, the watch dial according to the present invention has a typesetting part and a typesetting body fixed together by press-fitting and an adhesive, and a typesetting part of the typesetting part is attached to a hole for the typesetting part in the dial body. It has a structure in which the typesetting and the dial body are fixed using an adhesive, and when the typesetting is fixed to the dial, there is no adverse effect on the surface of the dial body, and there is no distortion or deformation. Ta. Also, the fixing method is extremely simple and mass production is improved.
←I did. As a result of the above, it has become possible to provide typesetting ultra-thin dials with stable quality and at a low cost.

[Brief explanation of drawings]

3 and 2 show the prior art; FIG. 1 is a perspective view of typesetting; FIG. 2 is a sectional view of the typesetting section; FIGS. 3 to 14 show an embodiment of the present invention; Figure 3 is a perspective view of typesetting, Figure 4
The figure is a cross-sectional view taken along line A-A in Figure 3, Figure 5 is a cross-sectional view taken along line B-B in Figure 3, Figure 6 is a perspective view of the typesetting section, and Figure 7 is a cross-sectional view of the plastic boat in the manufacturing process of the typesetting section. , Figure 8 is a cross-sectional view of the plastic boat in the process of manufacturing the typesetting body, Figure 9 is a perspective view of the typesetting body part shown in Figure 8, and Figure 10 is a process of machining the press-fit fitting hole in the typesetting foot. A cross-sectional view, FIG. 11 is a perspective view of the typesetting main body part after hole drilling has been completed by the process shown in FIG. 10,
Figure 12 is a sectional view showing the typesetting part press-fitted into the typesetting body, Figure 13 is a plan view showing the typesetting body and typesetting part being glued together, and Figure 14 is the typesetting being fixed to the dial body. FIG. 15 is a cross-sectional view of the typesetting portion of a dial plate according to another embodiment of the present invention. 1-a-2i... Typesetting - 2-16... Dial body - 2a... Distortion - 6... Caulking tool - 5-22 ... Typesetting body - 6-20 ... Typesetting section - 63 ... Typesetting foot section - 6b ... Typesetting foot section - 7, 10 ...・Plastic boat-8, 11...
...Electroformed metal layer. 9-14...Cavity part- 12...Press-fitting hole- 13-17...Adhesive- 15...Drilling hole is for σ) Tool- 16a...
...hole for typesetting section, patent applicant Citizen Watch Co., Ltd. No. 14 No. 2 B 75th 76th

Claims (1)

[Claims] A typesetting body having a shell structure and a typesetting part having a shell structure or a solid structure are fixed by press-fitting and a combination of adhesive, and the typesetting part of the typesetting is inserted into the hole for the typesetting part of the dial body and using adhesive. A watch dial, characterized in that the typesetting and the dial body are fixed to each other.