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Metal color synthetic resin ring and manufacturing method thereof

A synthetic resin and metal technology, applied in the direction of printing devices, printing, coating, etc., can solve the problem of damage to the appearance and achieve the effect of excellent appearance

Inactive Publication Date: 2009-02-11
SAKAIYA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, in the molded article of Patent Document 1, when the backlight is illuminated, since the boundary between the light-transmitting portion 69 and the light-shielding portion 68 on the upper surface is visible as it is, there is a disadvantage that the appearance is spoiled.

Method used

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  • Metal color synthetic resin ring and manufacturing method thereof
  • Metal color synthetic resin ring and manufacturing method thereof
  • Metal color synthetic resin ring and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] According to the synthetic resin ring 1 of the present invention, such as figure 1 Shown in (a) and (b), form transmission ring 3 and transparent resin ring 4, and described transmission ring 3 is that the synthetic resin sheet that will have the metal thin film (not shown in figure) that can transmit illumination is formed into the cross-sectional shape of door. The transparent resin ring 4 is obtained by injecting transparent resin into a ring shape by side gate method, and the transparent resin ring 4 is provided with The center of the inner top surface of the transmissive ring 3 is connected, and the opaque resin parts 5, 5 are in contact with the inner top surface of the transmissive ring 3 on both sides of the transparent resin ring 4. The lower part of the ring 4 is based on a metal mold core 25 (cf. Figure 4 ), the core 25 of the metal mold is used to determine the position of the transparent resin ring 4 between the opaque resin parts 5 and 5 on both sides. ...

Embodiment 2

[0057]In the above-mentioned manufacturing method of the synthetic resin ring 1, as shown in FIG. 6 , it can be used on a synthetic resin sheet with a metal film capable of transmissive illumination on the surface or inside, and the layered printing 32 at a certain interval is printed by screen printing. The synthetic resin ring 1 is manufactured by printing 33 dots at regular intervals, markings such as scales or colored synthetic resin.

[0058] The present invention can be used as decorations around the speedometer, tachometer or thermometer on the instrument panel of the automobile, as other uses, it can also be used as decorations for the operation panel of the air conditioner of the automobile, and can also be used for home appliances. Decoration on the round dial.

[0059] The synthetic resin ring of the present invention is not limited to a circular shape, and may be a ring formed of arcs and straight lines, or a polygonal ring formed of straight lines.

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Abstract

To provide a metal-tone synthetic resin ring which has a metallic appearance, which has the edge formed sharply, which is pleasing in appearance because the ring-shaped top face presents a complete flat when looked at, which has no eject pin marks, and in which, in the case of backlighting, the light emitted along the center of the ring-shaped top face is so devised as to produce no shade and emit light as if drawing a perfect circle. The metal-tone synthetic resin ring comprises a transmissive ring obtained by forming a synthetic resin sheet, which has a metal thin film that is transmissive and can be illuminated, into a shape of a gate in the cross-section and a ring, and a transparent resin ring obtained by injection-molding a transparent resin into a ring shape by a side gate method. The transparent resin ring is installed in contact with the center of the inside top face of the transmissive ring, and, on both sides of the transparent resin ring, opaque resin portions are formed so as to come into contact with the inside top face of the transmissive ring. The metal-tone synthetic resin ring has, in the lower part of the transparent resin ring, between the opaque resin portions of both sides, a shape by the mold core that has been used for positioning the transparent resin ring, as an internal space.

Description

technical field [0001] The present invention relates to a metal tone synthetic resin ring capable of partial transillumination, a metal tone synthetic resin ring that exhibits an overall metallic tone during the day or when not backlit, and is visible when backlit at night, as well as a method of manufacturing the same and a spray-formed metal mold. The central portion in the width direction of the top surface emits light. Background technique [0002] Synthetic resin rings for decorating around speedometers, tachometers, thermometers, etc. on automobile dashboards have conventionally been produced by the following method. [0003] As a method of manufacturing the above-mentioned synthetic resin ring, there is a colorless and transparent synthetic resin sheet or film, by transferring metal foil, metal vapor deposition or sputtering, etc. to form a light-transmitting metal film, and from the back side to the surface. Black printing is carried out by screen printing except fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/14B29C45/16B29C45/26B29C70/00
CPCB29C45/0053B29C45/14065B29C45/1459B29C2045/14188B29K2995/0026B41M1/12
Inventor 中村浩之柴田雅男
Owner SAKAIYA