Decoration plate and its mfg. method, articles and time-pieces therewith

A manufacturing method and technology of decorative boards, applied in the field of decorations and clocks, can solve the problems of thick and noble, difficult to manufacture thin boards, increase the thickness, etc., and achieve the effect of beautiful appearance and excellent corrosion resistance

Inactive Publication Date: 2002-05-15
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, even if the existing decorative board is provided with the above-mentioned drawing pattern, it lacks a three-dimensional effect because it is flat. It is obvious that this is the result of being made of a thin plate, and there is a problem that cannot give people a sense of thickness and nobility. a feeling of
[0010] Here, it is also conceivable to form the decorative plate into the shape of a convex lens, a concave lens or a Fresnel lens to reflect the three-dimensional effect, but it is not easy to manufacture it from a ...

Method used

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  • Decoration plate and its mfg. method, articles and time-pieces therewith
  • Decoration plate and its mfg. method, articles and time-pieces therewith
  • Decoration plate and its mfg. method, articles and time-pieces therewith

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0072] Embodiments of the present invention will be described below with reference to the drawings.

[0073] 1st form of implementation

[0074] image 3 A timepiece 1 according to a first embodiment of the present invention is shown. This timepiece 1 is equipped with a dial 2 as a decorative plate of the present invention.

[0075] The center of the dial 2 is provided with a through hole 5 for passing the drive shaft of the hour hand 3 and the minute 4, the hour hand 3 is used to indicate the time, and the peripheral part of the dial has a plurality of time display parts 6 composed of printed numbers.

[0076] Dial 2 as Figure 4 As shown, the decorative groove 7 extending spirally from the inner side to the outer side is cut out on the entire surface, so that the entire surface becomes a decorative part.

[0077] Decorative slot 7 as Figure 5 As shown, the section forms a V shape.

[0078] Among the pair of hypotenuses that form a V on the inner part of the scroll of ...

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PUM

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Abstract

In carving a decorative groove (7) formed in V-shape cross section extending from inside to outside on a dial plate (2) of a timepiece as a decorative plate, the slant angle of an inner slanted side (7A) forming the V-shape of the decorative groove (7) is made gentler than an outer slanted side (7B) at an inner part of the spiral, so that action of light reflected on the flat surface of the dial plate (2) macroscopically becomes similar to the light reflected on a bulging surface to give the central portion of the dial plate (2) a bulging appearance, whereby a three-dimensional effect is provided by the decorative groove (7) even when the dial plate (2) is made of a thin plate, thereby adding depth and a luxurious touch or aspect.

Description

technical field [0001] The present invention relates to a decorative plate having an excellent appearance by cutting grooves for decoration, a manufacturing method thereof, and an ornament and a timepiece using the decorative plate. Background technique [0002] Until now, dials for wristwatches have been manufactured using thin plates such as brass plates with a thickness of 0.4 mm as raw materials in order to suppress their thickness. [0003] Specifically, by punching or cutting the thin plate, the thin plate is formed into a shape corresponding to the design drawing of the main body of the watch, and at the same time, a central hole through which the drive shaft of the driving pointer passes is formed in the center, and then The back is a pre-installation process by welding the legs for fixing the movement. [0004] Then, the surface of the dial that has completed the previous process is ground and polished, and then stamped on the ground and polished surface to form pa...

Claims

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Application Information

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IPC IPC(8): G04B19/06B23B5/48B44C1/22B44C5/04B44F1/02B44F1/04B44F3/00B44F7/00C25D1/10G04B19/10G04B45/00G04D3/00
CPCG04D3/0048B44F7/00B44F1/04B44C1/222B44C1/225B44C5/0415C25D1/10G04B19/10B44F3/00B44F1/02Y10T428/2457Y10T428/24364Y10T428/24537Y10T428/24521Y10T428/24736Y10T428/24273Y10T428/24612Y10T428/24479G04B45/00
Inventor 中村勇一笠原幸雄
Owner SEIKO EPSON CORP
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