JP3148711B2 - Method of manufacturing illuminated license plate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a character license plate, and more particularly, to a method of manufacturing a character license plate in which characters after light transmission are displayed in a color that is unlikely to become ground color. .

[0002]

2. Description of the Related Art As shown in FIGS. 3 to 5, a character-type license plate is formed by punching a character portion 3 into an opening / closing frame 2 attached to the entire surface of a flat case 1 and defining the character portion 3. A license plate body 5 to which a transparent synthetic resin character 4 colored in the ground color is adhered, and an illumination lamp 6 provided inside the case 1.
The character 4 of the license plate main body 5 is illuminated by the illumination lamp 6 at night or the like.

[0003] Such a character-type license plate is such that the license plate can be identified from a long distance by illuminating the character 4 made of synthetic resin.
There is a drawback that the character 4 illuminates unevenly, such that the character 4 directly above the illumination light 6 shines strongly, while the character 4 farther from the illumination light 6 becomes dark.

For this reason, at present, between the license plate main body 5 and the lighting lamp 6, a milky white translucent light dispersion in which a black paint 7 is baked on a portion corresponding to the lighting lamp 6 so as to become thinner toward the periphery. With the plate 8 (FIG. 5) interposed,
By reducing the amount of light immediately above or near the illuminating lamp 6, the characters 4 are made to shine evenly (Japanese Utility Model Publication No. 53-16308). As the light dispersion plate 8, a milky translucent polypropylene plate is actually used.

In the above license plate,
In Japan, for example, in a private car for private use, the character 4 is green and the license plate body 5 is white by law. In this case, it is known that the character 4 made of a translucent synthetic resin glows green similarly by the illumination lamp (bulb) 6.

However, in the case of a private light vehicle, for example, the color of the license plate main body 5 is yellow, while the character 4 is black. For such a color arrangement,
If the light of the illuminating lamp 6 is transmitted through the translucent black character 4 to make it glow, the character becomes reddish and there is a disadvantage that the black character does not emerge. For this reason, it became inconsistent with the law and could not be used as a license plate for a mini vehicle. For this reason, as shown in FIG. 6, the character 4 has the same color as the opaque character portion 41 having a predetermined character shape and coloring and the transparent or translucent license plate body 5 provided around the character portion 41. Is known (Japanese Patent Laid-Open No. 8-123342).

In the case of manufacturing such a character-type license plate, for example, as shown in FIG. Fitting hole 423 formed in main body 421
(See FIG. 7 (a)) and thermocompression bonding from the back side,
As shown in FIG. 7B, the resin of the opaque character portion 41 flows and covers the back surface of the transparent light transmitting portion 42, or the two are mixed, thereby deteriorating the light transmitting property and flowing again. There was a drawback that the shadow of the resin emerged.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has been made in consideration of the above-mentioned problems, and has the following features. It is an object of the present invention to provide a method for manufacturing a character-type license plate which does not impair the light-transmitting property of the light-transmitting part when the pressure-sensitive adhesive is pressed, and does not transmit the shadow of the opaque resin of the character part to the light-transmitting part.

[0009]

Therefore, a character-type license plate according to the present invention is provided with an opaque character portion having a predetermined character shape and coloring, and a character portion provided on the periphery of the character portion. A transparent or translucent character plate made of synthetic resin having a light-transmitting portion of the same color as the surface of the license plate main body, fitted into the character portion, and attached by thermocompression bonding on the back surface of the license plate main body. Wherein the character portion has a character portion main body having a predetermined shape and a character thermocompression bonding foot portion hanging down from the character portion main body, while the light transmitting portion also has a light transmissive heat hanging down from the light transmitting portion main body. A crimp foot and a fitting hole for fitting the character thermocompression foot are provided, and the character thermocompression foot is longer than the translucent thermocompression foot, and Toru photothermal crimping portion is characterized in that to form a reservoir portion spaced a predetermined distance.

An embodiment of a light-emitting license plate according to the present invention will be described with reference to the drawings. The light-emitting license plate according to the present invention is basically mounted on an opening / closing frame 2 mounted on the entire surface of a case 1. A license plate body 5 in which a character portion 3 is punched out and a synthetic resin character 4 colored in a prescribed ground color is affixed to the character portion 3
It consists of. The character 4 inside the case 1
An illumination light 6 is mounted at an appropriate position to raise the light, and a light dispersion plate 8 as shown in FIG. 6 is provided between the illumination light 6 and the license plate main body 5, for example.

The character 4 used in the light-emitting license plate according to the present invention has a predetermined character shape, is the same color as the opaque character portion 41 and the color of the license plate body 5, and is translucent or transparent. The light transmitting portion 42 is connected to the character portion 41.
Around.

The width of the light transmitting portion 42 protruding around the character portion 41 is preferably 5 to 10 mm. 5
If it is less than mm, the character 4 does not rise due to the light passing through the light-transmitting portion 42, and it may be difficult to visually recognize the character that has risen from a distant place. It became too bright and said character part 4
This is because there is a possibility that 1 becomes difficult to visually recognize.

As described above, the character portion 41 is colored in a predetermined color and is opaque so that the light of the illumination lamp 6 is not transmitted. The character part 41 is a character part body 41
1 and a character thermocompression foot 412 hanging down from the character portion body
have. On the other hand, the light-transmitting portion 42 is colored in the same color as the number play and the main body 5, and further allows light to pass therethrough. A translucent thermocompression foot 422 for insertion into the character portion 3 is provided to hang down from the translucent portion main body 421. The light transmitting portion 42 is formed with an insertion hole 423 for inserting the character thermocompression bonding portion 412, and by inserting the character thermocompression bonding portion 412, the character portion 4 is inserted.
1 and the light transmitting section 42 can be combined. Further, the light-transmitting portion 42 has a light-transmitting thermocompression bonding foot portion 422
Is locked when inserted, and the character portion 3 and the light transmitting portion 4
A locking portion 424 is provided to prevent the light of the illumination lamp 6 from leaking from the gap between the two.

There is no close contact between the character thermocompression bonding foot 412 of the character portion 41 and the light transmission portion 42 and the light transmission thermocompression bonding portion 422.
It is isolated for a predetermined period. For this reason, a space is formed between the character thermocompression bonding foot 412 and the translucent thermocompression bonding portion 422,
A reservoir 43 is formed by this gap. Also, the character thermocompression foot 412 is longer than the translucent thermocompression foot 422,
When performing thermocompression bonding, a thermocompression bonding plate (not shown) is configured such that the character thermocompression bonding foot 412 comes into contact first (FIG. 1).
(A)).

When thermocompression bonding is performed in the above-described state, the character thermocompression foot 412 is first softened by heat as described above, and the softened resin accumulates in the reservoir 43 (FIG. 1). (B)). Next, since the translucent thermocompression foot 422 is softened by the contact of the thermocompression plate, the resin of the character portion 41 is not covered with the translucent portion 42,
In addition, thermocompression bonding can be performed without mixing both resins (see FIG. 1C).

FIG. 2 shows a sectional structure of a character having a hollow portion such as "8", "4", and "0". The character portion 41 is molded so as to provide the hollow portion 413 (see FIGS. 6 and 2). In this case, the character thermocompression foot 41
2 is provided intermittently, and the fitting hole 423 of the light transmitting part 42 is also provided intermittently (because the hollow part of the light transmitting part 42 falls off if provided over the entire circumference). A resin piece 44 that does not transmit light is also provided on the back surface of the light transmitting portion 42 where the hollow portion 413 is formed so as not to transmit light from the hollow portion 413. The resin piece 44 is also longer (higher) than the translucent thermocompression foot 422, and is not closely attached to the translucent thermocompression foot 422, and is therefore separated. Is formed with a reservoir 45. Further, in order to facilitate positioning of the resin piece 44, a mounting hole 425 for positioning is formed. With this configuration, the resin piece 44
Can be thermocompression-bonded without intermingling with the resin of the light transmitting section 42. This is because if light is also transmitted from the hollow portion 413, visibility from a distance is impaired, which is not preferable.

[0017]

As described above, according to the method of manufacturing the character-type license plate according to the present invention, the length of the character thermocompression foot is made longer than the length of the translucent thermocompression foot, and the reservoir is formed. Is formed, there is an advantage that the resin of the character portion and the resin of the light transmitting portion do not overlap or mix with each other, and the light transmitting portion and the character portion can be formed well.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view for explaining crimping of characters according to an embodiment of the present invention.

FIG. 2 is a sectional view of a character according to another embodiment of the present invention.

FIG. 3 is a front view of a conventional light-emitting license plate.

FIG. 4 is a front view when the opening / closing frame is opened.

FIG. 5 is a front view of a conventional light dispersion plate.

FIG. 6 is a front view of a character-type license plate having a character having a color different from the ground color of a synthetic resin constituting the character when light is transmitted.

FIG. 7 is a cross-sectional view illustrating a typical thermocompression bonding process.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 2 Opening / closing frame 3 Character part 4 Character 41 Character part 411 Character part main body 412 Character thermocompression foot part 413 Hollow part 42 Light transmission part 421 Light transmission part main body 422 Light transmission thermocompression foot part 423 Fitting hole 424 Locking part 43 Reservoir 44 Resin piece 45 Reservoir 5 Number plate body 6 Illumination light 7 Paint (seal) 8 Light dispersion plate

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification code FI // B29L 31:00

Claims (3)

(57) [Claims] An opaque character portion having a predetermined character shape and coloring is punched out of a character portion on a license plate main body, and a transparent or translucent transparent plate of the same color as the surface of the license plate main body provided around the character portion. In a method of manufacturing a character light type license plate in which a character made of a synthetic resin having an optical part is fitted into the character part and attached by thermocompression bonding on the back surface of the license plate body, the character part is formed by a character part body having a predetermined shape. It has a character thermocompression foot that hangs down from the character body, while the translucent portion also has a translucent thermocompression foot that hangs down from the translucent body and a fitting hole that fits the character thermocompression foot. The character thermocompression bonding foot portion is longer than the translucent thermocompression bonding foot portion, and the character thermocompression bonding portion and the translucent thermocompression bonding portion form a reservoir with a predetermined space therebetween. Characterized by Manufacturing method of illuminated license plate. 2. The method according to claim 1, wherein the width of the light transmitting portion protruding around the character portion is 5 to 10 mm. 3. When the character is a character having a hollow portion, a resin piece that is higher than the translucent thermocompression bonding foot is provided on a portion corresponding to the hollow portion on the back side of the light transmitting portion and crimped. A method for manufacturing a light-emitting license plate according to claim 1 or 2.