JPH0614986U - Clock face - Google Patents

Abstract

(57) [Summary] [Purpose] Providing a dial for watches that does not change the color of the stored light. [Structure] A dial for a timepiece, which is formed by laminating a dial plate substrate, and a luminous sheet composed of an adhesive, a white film, and luminous. Furthermore, a timepiece dial with a semi-transparent color coating on the top surface.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a timepiece dial, and more particularly to a luminous dial using a luminous sheet.

[0002]

[Prior art]

 FIG. 4 is a cross-sectional view of a conventional color dial for timepieces that uses phosphorescence, 11 is a dial plate substrate, 12 is silver plating applied on the upper surface of the dial plate 11, and 13 is for protecting the silver plating 12. No. 14 is clear coating, and 14 is color light storage. With the above-mentioned structure, the silver plating 12 is white and has a high reflectance and is bright, so that the color of the color phosphorescent light 14 becomes vivid and a colorful dial for a timepiece.

[0003]

[Problems to be solved by the device]

 The color light storage 14 has a structure shown in FIG. That is, it has a structure in which a fluorescent pigment 16 exhibiting a color such as orange or pink is attached around the light storage 15 made of zinc sulfide (ZnS), and the fluorescent pigment 16 produces a desired color.

In the conventional color dial for a timepiece, the clear coating 13 formed on the upper surface of the silver plating 12 has fine holes and is breathable, so that the initial color dial for the timepiece was manufactured. Although it has a clear color at the stage, as time passes, the zinc sulfide of the phosphorescent light 15, which constitutes the color phosphorescent light 14, and the silver plating 12 (Ag) react with each other through the clear coating 13, Since the silver plating 12 discolors and turns black, there is a drawback that the color of the color light storage 14 appears discolored.

Further, the fluorescent pigment 16 constituting the color light-accumulation 14 is vulnerable to ultraviolet rays, and the color fades over time, resulting in a loss of freshness.

[0006]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention is characterized in that a dial plate substrate and a phosphorescent sheet composed of an adhesive, a white film, and phosphorescent are bonded together, and further, a semi-transparent upper surface. It is characterized in that a color film is formed.

[0007]

[Action]

 In the present invention, since the white film can emphasize the whiteness and brightness, silver plating is not necessary, there is no concern about discoloration of the stored light, and it can be manufactured by a simple process. Also, by forming a semi-transparent color film on the upper surface, a desired color can be displayed and the color film can be seen clearly without being affected by ultraviolet rays in the stored light.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 is a dial plate substrate made of a Bs material, and a luminous sheet 2 composed of an adhesive 3, a white film 4 and a luminous 5 is attached to the upper surface of the dial substrate with the adhesive 3. As shown in FIG. 2, the luminous sheet has a large-sized white film 4 on which the luminous 5 is formed by printing to have a uniform thickness, and the adhesive 3 and a protective sheet 6 are formed on the lower surface. Then, in order to form a structure in which this luminous sheet is attached to the dial for a watch, the large-sized luminous sheet may be pressed into the same shape as the dial substrate, and then the protective sheet 6 may be peeled off and attached. After the protective sheet 6 is peeled off and a large-sized phosphorescent sheet is attached to the upper surface of the Bs material, the outer diameter, the central hole, etc. may be punched out at the same time.

FIG. 3 shows a semi-transparent color film 7 formed by painting on the upper surface of the timepiece dial shown in FIG.

[0010]

[Effect of device]

 As described in detail above, according to the present invention, the light storage formed on the white film is adhered to the dial plate substrate with an adhesive, so that the light storage becomes brighter and clearer than in the past. No need for Ag plating on the dial plate substrate, there is no discoloration of the stored light, and a light storing dial can be provided by a simple method.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a timepiece dial according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the structure of the luminous sheet in FIG.

FIG. 3 is a sectional view of a timepiece dial according to another embodiment of the present invention.

FIG. 4 is a cross-sectional view of a conventional color dial for timepieces that uses phosphorescence.

5 is a schematic configuration diagram of color light accumulation in FIG.

[Explanation of symbols]

 1 Dial plate substrate 2 Luminescent sheet 3 Adhesive 4 White film 5 Luminescent 6 Protective sheet 7 Semi-transparent color film

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Creator Masaaki Watanabe 2 6663 Funatsu, Kawaguchiko-cho, Minamitsuru-gun, Yamanashi Prefecture Kawaguchiko Precision Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A dial for a timepiece, comprising a dial plate and a luminous sheet composed of an adhesive, a white film and a luminous layer, which are adhered to each other. 2. The timepiece dial according to claim 1, wherein a semi-transparent color film is formed on the upper surface.