JPH10119087A - Display and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent defective weatherability and the peeling of a coat by plating the surface of a main body having through holes in a shape of display contents and embedding a display resin in the holes by insert molding to form the display contents. SOLUTION: Through holes 4 for embedding display contents 3 indicating characters, etc., are formed in the middle of a main body 2. Next, the surface excluding the holes 4 is subjected to chrome plating including in-mold transfer molding or vacuum plating. After that, the main body 1 is placed in a lower mold 6, and it is overlaid with an upper mold 7 to be contacted closely. Moreover, a display resin is insert-molded from an injection port 8 formed in the upper mold 7 toward the holes 4, and the resin is embedded to a position contacting the inner surface of the lower mold 6. In this way, the surface of the display contents 3 is finished on the same level with the surface of the main body 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emblem and other marks attached to the outside of an automobile, various knobs, home electric appliances (for example, audio buttons and the like), and plates displayed on a house or the like. And a method of manufacturing the same.

[0002]

2. Description of the Related Art For example, an emblem a attached to the outside of an automobile is made of a synthetic resin as shown in FIG. 10 (A) as a plan view and FIG. 10 (B) as an AA sectional view in FIG. 10 (A). The base material is a thin-walled material having an appropriate height and curved so that the upper surface becomes a gentle convex surface, and a groove b is formed on the upper surface as a portion for displaying characters and the like in accordance with the form. .

The groove b is coated with a paint c by spraying or the like, and the upper surface other than the groove b is plated with d. Further, a portion provided with the groove b is provided with a plurality of ribs g extending from the inner surface e to the bottom surface f in order to reduce the strength.

[0004]

However, the emblem formed as described above has the following disadvantages. 1) Poor weather resistance (discoloration) and peeling of the coating are likely to occur. 2) Since the characters have no depth, there is no sense of quality such as a three-dimensional effect and a depth effect. 3) Due to the presence of the groove, a rib which requires man-hours to reinforce the groove must be provided. 4) When the groove is painted, the boundary with the plating surface becomes unclear, and the parting line becomes indistinct, making it difficult to see. 5) Due to the presence of the ribs, it is necessary to increase the area of the contact surface of the double-sided tape to be attached to the bottom surface. And many other drawbacks.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a display body and a method of manufacturing the display body in which the above disadvantages are improved. It is in the form of an insert.
That is, the invention according to claim 1 is that, after plating is performed on the surface of a main body having a punched hole penetrating the shape of the display content, a display resin is embedded in the punched hole by insert molding, and the display content is improved. The invention according to claim 2 is characterized in that the display portion showing the display content is formed in advance, and the display portion is surrounded by the resin for the main body by insert molding to integrate the display content with the main body. It is characterized by.

The invention according to claim 3 is characterized in that the main body has a through hole formed therethrough from the front surface to the back surface, and a display content of resin embedded in the through hole of the main body. According to a fourth aspect of the present invention, in each of the above inventions, the surface of the main body and the surface of the display content are the same surface, and further, the fifth aspect is characterized in that the display content protrudes from the surface of the main body. Items 6 and 7 are
The display is characterized in that the resin is a phosphorescent material.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings.

The display 1 according to the present invention will be described with reference to an emblem used, for example, by being attached to a vehicle body such as an automobile. FIG. 1A is a plan view and FIG. 1B is a side view. In this embodiment, the main body 2 has a round planar shape, and the side surface of the main body 2 is formed of a resin or the like on a gentle convex curved surface from the periphery to the center.
At the center of the convex surface, there is a hole penetrating from the front surface to the back surface, and the display contents 3 indicating characters and the like are embedded in the hole, and the surface other than the display contents 3 is a surface such as chrome plating. Processing has been applied.

FIG. 2 shows the details of a part of an enlarged cross section of the display content 2 shown in FIG. 1 (A). .

According to the insert manufacturing method according to the first aspect of the present invention for embedding and molding the display contents 3, first, the main body 2 is molded from a primary material as shown in a broken perspective view in FIG. In the center, a hole 4 for embedding display contents 3 indicating characters or the like is formed so as to penetrate from the front surface to the back surface.

Next, the surface excluding the holes 4 is subjected to in-mold transfer molding or chrome plating including vacuum plating. Note that reference numeral 5 is an empty space.

Thereafter, the main body 1 is placed in a lower mold 6 as shown in FIG. 4 (A), and an upper mold 7 is overlaid thereon and brought into close contact therewith.

Further, as shown in FIG. 4 (B), insert molding with a display resin is performed from the injection port 8 provided in the upper die 7 toward the hole 4 and the resin is brought into contact with the inner surface of the lower die 6. Embed.

As a result, the surface of the display contents 3 is finished without any step from the surface of the main body 2. In this case, the display content 3 can be made luminous by mixing a phosphorescent material into the display resin used for insert molding, and the depth can be further felt.

The display 1 thus obtained is as shown in FIG. 5, and the display contents 3 are embedded in the holes 4 shown in FIG.

FIG. 6A is a perspective view showing the display body 11 obtained by the manufacturing method according to the second aspect of the present invention. Next, this is placed in upper and lower molds (not shown), and the main body 12 as shown in the figure is formed by insert molding in which a colored resin serving as a main body is inserted into the mold.

FIG. 6B is a modification of FIG. 6A.
The difference from (A) is that a neck 9 is provided in the display content 13a. When the neck 9 is present, the main body 12a
Therefore, the display content 13a is prevented from falling off in the vertical direction, so that the display body 11a can be made stronger than in the case of FIG.

FIG. 7 shows the display contents 13b as shown in FIG.
Is a display body 11b in which the main body 12b is formed when two are arranged.

FIG. 8 is also a unique modification of FIG.
The display body 11c is formed by molding the main body 12c so that the display content 13c protrudes by a certain height from the main body 12c.

FIG. 9 shows a joining portion 16 of the display contents 13 of the individual character shapes 14 and 15 used when insert-molding the main body 12 in the manufacturing method according to the second aspect of the present invention. is there. By forming the main body 12 around the display contents 13 combined and combined as described above, the display body 11 as shown in FIGS. 6 to 8 described above is obtained.

Also in this case, the display content 13 can be made to have a sense of depth by adding a light storage material to the display resin material.

When the display body shown in FIGS. 1 to 8 is to be attached to another article, one of them can be peeled off by attaching an adhesive double-sided tape to the bottom surface.

In the above description, the emblem has been described. However, the present invention is not limited to this, and it is needless to say that the present invention can be applied to marks, knobs, and the like.

[0024]

Since the present invention is constructed as described above, the following effects can be obtained. 1) The display content has a high-class feeling that is deeper than the texture of the conventional coating, and is similar to a cloisonne-like appearance. 2) Since the surface of the display content is the same as the surface of the main body, various character expressions and pattern expressions can be obtained. 3) Since the step between the surface of the main body and the step which always occurs when using the conventional coating can be eliminated, the parting line between the character and the main body becomes beautiful. 4) Paint peeling and poor weather resistance can be avoided. 5) Various expressions (surface shape, overhang character expression) are possible. 6) Since the display content does not require a rib for reinforcement because of insert molding, thin molding is possible. 7) Because the adhesive surface of the double-sided tape to be stuck on the back surface is obtained as a flat surface for the reason described in the preceding paragraph, the necessary tape area is greatly reduced, and the cost is reduced. 8) By adding a phosphorescent material to the resin forming the display contents as described in claims 6 and 7, it is possible to make the display contents integrated with the main body feel luminous and deep.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a display according to the present invention,
(A) is a plan view, (B) is a side view.

FIG. 2 is a cross-sectional view of a side surface of FIG. 1A including a central portion.

FIG. 3 is a perspective view of a broken state showing only a main body of the display body according to the present invention.

FIG. 4 shows a process of a manufacturing method of an embodiment of a display according to claim 1 of the present invention, wherein (A) shows a state before insert molding;
(B) is a state diagram during insert molding.

FIG. 5 is a cutaway perspective view of a state in which insert molding of display contents has been completed on the main body of the present invention to form an integrated display body.

6A and 6B are perspective views of a display body formed by the manufacturing method according to claim 2 of the present invention, wherein FIG. 6A is an embodiment view and FIG. 6B is an embodiment view of a modification of FIG. .

FIG. 7 is an embodiment of a case where two of FIG. 6A are arranged.

FIG. 8 is an embodiment of the display body formed by the manufacturing method according to claim 2 of the present invention in a case where display contents are projected from the main body.

FIG. 9 is a perspective view showing connection of individual display contents when the manufacturing method according to claim 2 of the present invention is performed.

10A and 10B show a conventional display body, wherein FIG.
(B) is an AA sectional view of (A).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Display body 2 Main body 3 Display content 4 Draft hole 6 Lower mold 7 Upper mold 8 Insertion opening 11, 11a, 11b, 11c Display body 12, 12a, 12b, 12c Main body 13, 13a, 13b, 13c Display content

Claims (7)

[Claims] The present invention is characterized in that, after plating is performed on a surface of a main body having a through hole penetrating the shape of the display content, a display resin is buried by insert molding in the hole to form the display content. Manufacturing method of display body. 2. A method of manufacturing a display body, comprising: forming a display portion indicating display contents in advance, surrounding the display portion with a resin for a main body by insert molding, and integrating the display contents with the main body. 3. A display body comprising: a main body having a through hole penetrating from the front surface to the back surface; and a display content of resin embedded in the through hole of the main body. 4. The display according to claim 3, wherein the surface of the main body and the surface of the display content are the same. 5. The display according to claim 3, wherein the surface of the display content protrudes from the surface of the main body. 6. The method for manufacturing a display body according to claim 1, wherein the display resin showing the display content contains a phosphorescent material. 7. The display according to claim 3, wherein the display resin showing the display content contains a phosphorescent material.