JPH081081Y2 - Resin molded product - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a resin molded product for vehicles such as a lens of a rear combination lamp, a lens of a rear finisher, and a rear garnish. The present invention relates to a resin-molded product which can be provided with sensational characters and marks and which can be manufactured easily and at low cost.

[Prior Art] Conventionally, there are the following resin molded products on which characters and marks are provided.

1. Separate parts such as emblems with letters and marks attached to a resin molding.

2. A sheet or film with letters or marks attached to a resin molding.

3. An electroformed product with letters and marks attached to a resin molding.

4. A resin molded body with characters and figures etc. integrated into the resin molded body by insert molding.

However, the above-mentioned resin molded product has the following problems.

1. When the separate parts are assembled, there is no sense of unity between the resin molding and the separate parts.

2. The one with a sheet or film attached does not have a three-dimensional effect and lacks a sense of brightness.

3. The one with electroforming has no three-dimensional effect and may peel off, and there is a risk of cutting fingers or hands when peeled off.

4. Insert-molded products have a poor molding yield and high manufacturing costs.

Therefore, there has been proposed a method in which characters or marks are formed on one surface of a resin molded body by a concave surface such as a groove and the high brightness member is vapor-deposited on the concave surface (or the one surface and the concave surface of the resin molded body). In such a resin molded product, the light reflecting action of the high-intensity member deposited on the concave surface of the one surface of the resin molded body,
Due to the refraction of light on the concave surface of the one surface of the resin molded body, it is possible to obtain characters and marks having a high brightness and a high stereoscopic effect.

[Problems to be solved by the invention] However, in the case where the above-mentioned high-intensity member is vapor-deposited, it is technically very difficult to deposit the high-intensity member on the concave surface of the resin molding, and the number of processing steps For example, "1. Degreasing →
2. Undercoat treatment → 3. Drying → 4. Deposition treatment → 5. Topcoat treatment → 6. Drying → 7. Removal of overdeposition (alkaline solution washing) → 8. Washing with water → 9. Drying " 2 above
The steps 3 and 3 may be omitted. ), There are problems such as high manufacturing costs.

An object of the present invention is to provide a resin molded product that can be manufactured easily and inexpensively, and that can obtain characters and marks having high brightness and high three-dimensional effect.

[Means for Solving the Problems] In order to solve the above problems, the present invention forms a character or mark with a concave surface such as a concave groove on one surface of a light-transmissive resin molding, while providing a high-luminance portion. The same characters and marks as the characters and marks of the resin molded body are formed on the holding body in the high brightness portion, and the high brightness portion holding body is formed on one surface of the resin molded body, and the characters and marks of the resin molded body are formed. Etc. and the characters and marks of the high brightness portion are positioned, and then fixed so as to form a space by the concave surface and the high brightness portion.

[Operation] With the above-described configuration, the present invention has a structure in which the space formed by the concave surface of the resin molded body and the high-intensity part of the high-intensity part holder corresponds to the portion of characters or marks corresponding to the light in the high-intensity part. A high-luminance feeling is obtained by the reflecting action, and a high three-dimensional effect is obtained by the refracting action of light on one concave surface of the resin molded body and the light reflecting action of the above-mentioned high-luminance portion. Therefore, it is possible to obtain a high-luminance feeling and a high stereoscopic effect only for the characters and marks. Moreover, since the high-intensity part holder is fixed to one surface of the resin molded body, the work is technically easy as compared with the conventional resin molded body in which the high-intensity member is deposited on the concave surface,
As a result, it can be manufactured easily and inexpensively.

[Examples] Hereinafter, three examples of the resin molded products according to the present invention will be described with reference to the accompanying drawings.

1 to 9 show a first embodiment of a resin molded product according to the present invention, and FIG. 1 is a schematic diagram before fixing a high-intensity part holder to a resin molded product by hot stamping. 2 is a schematic diagram after fixing the high-intensity part holder to the resin molded body, FIG. 3 is a view in the direction of arrow III in FIG. 2, and FIG. 4 is one of the letters of the resin molded body. 4 is a plan view of the part, FIG. 5 is a cross-sectional view taken along line VV in FIG. 4, FIGS. 6 and 7 are enlarged cross-sectional views of the high-intensity part holder, and FIGS. 8 and 9 are modified examples of concave surfaces. It is the expanded sectional view shown.

In the figure, reference numeral 1 denotes a resin molded body made of a light-transmitting resin material such as acrylic (PMMA) or polycarbonate (PC). In this example, a lens for a rear combination lamp, a lens for a rear finisher, or a vehicle such as a rear garnish is used. It is a resin molded product. The one surface (inner surface) of the resin molded body 1 is provided with a concave surface 10 such as a concave groove, for example, "ICHIKOH".
Form the character. As shown in FIGS. 4 and 5, the concave surface 10 is composed of inclined surfaces on the left and right sides of the V-shaped cross section and inclined end surfaces at the upper and lower ends.

2 and 2A are high-intensity part holders, and these high-intensity part holders 2 and 2A are in the form of a relatively thin film or a relatively thick plate. The high-intensity part holders 2 and 2A include, for example, those that develop silver color and those that develop gold color.

As shown in FIG. 6, polyethylene terephthalate (PE
Base film 20 such as T) and the base film 20
Above the resin molding 1, the same "I CHIKOH" letters "I"
High-luminance part (high-luminance processing part) 21 formed by mask vapor deposition processing, etc. and the protective layer 22 such as acrylic
And an adhesive layer 23 made of acrylic or the like. The high-brightness portion 21 is formed of a light-impermeable vapor deposition layer such as aluminum vapor deposition. In addition, the protective layer 22 and the adhesive layer 23
Has at least optical transparency.

In addition, as the high-intensity part holder 2A that develops gold color,
As shown in the figure, a light-transmitting colored layer 24A such as acrylic is provided between the base film 20A, the high-intensity part 21A and the protective layer 22A, and the adhesive layer 23A similar to that shown in FIG. It is provided corresponding to the portion 21A.

A hot stamping device 4 includes a cylinder 40, a heating plate 41 fixed to the tip of the cylinder 40, and a fixing plate 42 fixed to the lower surface of the heating plate 41.
And a hot stamp engraving jig 43 made of silicon rubber or the like provided on the lower surface of the fixing plate 42, and a jig for receiving the resin molded body 1 disposed below the hot stamp engraving jig 43.
44 and.

Thus, the resin molded body 1 is attached to the jig 44 for receiving the resin molded body 1.
Set one side up. Next, the high-intensity part holders 2 and 2A are provided on one surface of the resin molded body 1, the adhesive layers 23 and 23A are made to face the resin molded body 1, and “ICHIKOH” of the resin molded body 1 is formed.
Position and set the character "" and the character "ICHIKOH" on the high-brightness parts 21 and 21A. Then, the hot stamping device 4 is operated to perform hot stamping of the jig 43 so that the periphery of the high-intensity part holders 2 and 2A is on one surface of the resin molded body 1, and the concave surface 10 of the resin molded body 1 and the high-intensity part holder. 2,2A high brightness part 21,21A
And fix it to form a space. That is, in the concave surface 10 of the resin molding 1, the high-intensity part 2 of the high-intensity part holder 2, 2A is formed.
Do not fix 1,21A directly.

Since the resin molded product of the present invention in this embodiment has the above-described structure, it has a space formed by the concave surface 10 of the resin molded body 1 and the high brightness portions 21, 21A of the high brightness portion holders 2, 2A. In the corresponding characters, marks, etc., the resin molded body 1 starts from the outside of the resin molded body 1 (the surface opposite to the surface on which the concave surface 10 is provided).
The light entering the inside of the protective layer 22,22
When it reaches the high-brightness portions 21 and 21A through A and the colored layer 24A, it is reflected at the high-brightness portions 21 and 21A. This high brightness part holder 2,
A high-luminance feeling can be obtained by the light reflecting action of the high-luminance portions 21 and 21A of 2A. At this time, if the high-intensity part holder 2 is the one shown in FIG.
Develops a silver color. When the high-intensity part holder 2A is shown in FIG. 7, the high-intensity part 21A of the high-intensity part holder 2A develops gold color.

Further, the light entering the resin molded body 1 from the outside of the resin molded body 1 and reaching the concave surface 10 on the inner side (one surface) of the resin molded body 1 is refracted at the concave surface 10 to further maintain the high brightness portion. High brightness part 2 through protective layers 22 and 22A of body 2 and 2A and colored layer 24A
It reaches 1,21A and is reflected at the high-brightness portions 21,21A.
Due to the refraction of light on the concave surface 10 and the reflection of light on the high-brightness portions 21 and 21A, a high stereoscopic effect can be obtained.

In this way, only the letters "ICHIKOH" have a high brightness and high stereoscopic effect, and only the letters "ICHIKOH" develop silver or gold.

Moreover, since the high-intensity part holders 2 and 2A are simply hot-stamped and fixed to the resin molded body 1, the work is technical compared to the conventional resin molded body in which the high-intensity member is vapor-deposited on the concave surface. It is easy and consequently easy and cheap to manufacture.

8 and 9 are enlarged cross-sectional views showing modified examples of concave surfaces. The example shown in FIG. 8 comprises a curved surface having a semicircular cross section formed by a semicircular groove. The example shown in FIG. 9 comprises left and right side surfaces and a bottom surface having an inverted trapezoidal cross section formed by a trapezoidal groove.

The shape of the concave surface 10 (size, width,
The depth and the like) can be set arbitrarily, and there are no restrictions on the concave surface 10 in terms of shape or size, and characters or marks having any desired three-dimensional effect can be obtained.

10 to 14 show a second embodiment of the resin molded product according to the present invention, and FIG. 10 is a schematic schematic diagram before the high-intensity part holder is adhered and fixed to the resin molded product, FIG. 11 is a schematic schematic diagram before fixing the high-intensity part holder to the resin molded body by ultrasonic welding, and FIGS. 12 to 14 are enlarged cross-sectional views of the high-intensity part holder.

In the figure, the same reference numerals as those in FIGS. 1 to 9 indicate the same parts.

In the figure, 2B, 2C and 2D are high-intensity part holders, and these high-intensity part holders 2B, 2C and 2D are, for example, those that develop silver color and those that develop gold color.

And, as the high brightness part holder 2B that develops silver color,
As shown in FIG. 12, a base layer 20B such as polyethylene or polycarbonate and a resin molded body 1 on the base layer 20B.
The "ICHIKOH" character, which is the same as the "ICHIKOH" character, is formed of a high-luminance portion 21B of an aluminum vapor deposition layer provided by mask vapor deposition and a protective layer 22B such as acrylic. Also,
As the high-intensity part holder 2C that develops silver color, as shown in FIG. 13, an acrylic resin is used between the base layer 20C, the high-intensity part 21C, and the protective layer (top coat) 22C similar to those in FIG. 12 described above. There are those with an undercoat 23C intervening.

Furthermore, as a high brightness part holder 2D that develops gold color,
As shown in FIG. 14, a colored layer 24D such as acrylic is provided between the base layer 20D, the high-luminance portion 21D and the protective layer 22D, and the protective layer 22D similar to those in FIG. 12 described above, and the high-luminance portion 21D. It is provided correspondingly.

The high-brightness portions 21B, 21C, 21D are formed by a light-impermeable vapor deposition layer such as aluminum vapor deposition. Further, the protective layers 22B, 22C, 22D and the colored layer 24D have at least optical transparency.

In FIG. 10, 3 is an adhesive, and this adhesive 3 is applied to the peripheral edge of the character “ICHIKOH” formed by the concave surface 10 on one surface of the resin molded body 1.

Thus, the high-luminance part holder is provided on one surface of the resin molded body 1.
2B, 2C, 2D, the protective layer 22B, 22C, 22D facing the resin molded body 1 and the letters "ICHIKOH" of the resin molded body 1 and the letters "ICHIKOH" of the high-intensity parts 21B, 21C, 21D Is set and set, and then the adhesive 3 is used for adhesive fixing.

In addition, the above-mentioned resin molded body 1 and the high-intensity part holders 2B, 2C, 2D
The method of adhesion and fixing with is that the adhesive 3 is applied to the resin molding 1 described above.
To the resin molded body 1 after applying
A method of adhesively fixing C and 2D, and a method of applying adhesive 3 to the high brightness part holders 2B, 2C and 2D and then adhesively fixing the high brightness part holders 2B, 2C and 2D to the resin molded body 1. There is. In addition, the location where the adhesive 3 is applied is not limited to the above.

In FIG. 11, 5 is a horn of an ultrasonic welding device (not shown). Reference numeral 11 denotes a frame portion which is provided on one surface of the resin molded body 1 by being lowered, and the above-mentioned "ICHIKOH" character is formed on one surface of the frame portion 11. A bead 13 is integrally projectingly provided on one surface of the frame portion 11 at the periphery.

Thus, the high-intensity part holder 2 is attached to the frame part 11 of the resin molded body 1.
B, 2C, 2D, the protective layers 22B, 22C, 22D facing the resin molded body 1 and the letters "ICHIKOH" of the resin molded body 1 and the letters "ICHIKOH" of the high-intensity parts 21B, 21C, 21D. Is set and then the ultrasonic welding horn 5 ultrasonically welds the periphery of the high-intensity part holders 2B, 2C, 2D and the bead 13 of the resin molding 1 to the high-intensity part holder 2B, 2C and 2D are fixed to the resin molding 1.

The second embodiment can achieve the same effects as those of the first embodiment described above.

Incidentally, in addition to the mechanical fixing by the ultrasonic welding described above, there are cases where the fixing is performed by caulking.

Further, the resin molded body 1 shown in FIGS. 2 and 10 described above.
In the case of so-called plane fixing for fixing the high-intensity part holders 2 to 2D on the plane, and the frame portion 11 of the resin molded body 1 shown in FIG.
There is a case where the high brightness part holders 2 to 2D are fixed inside the so-called frame fixing.

Further, as described above, the characters and marks of the high-brightness portions 21 to 21D may be colored and the other parts may be colorless and transparent, or the other parts may be colored.

The protective layers 22 to 22 of the high-intensity part holders 2 to 2D
The color development design can be arbitrarily set by changing the color tone of D or the color tone of the resin molded body 1 (for example, colorless or various smoke colors) alone or in combination.

Furthermore, the resin molded body 1 and the high brightness portion holders 2 to 2D
As a method of fixing the above, the characters “ICHIKOH” may be fixed all together as described above, or may be fixed one by one or divided by numbers.

FIGS. 15 to 21 show a third embodiment of the resin molded product according to the present invention, FIG. 15 is a sectional view of an example used for a front lens of a vehicle lamp, and FIG. 16 is a light source bulb when turned off. Illustration of
FIG. 17 is an explanatory view when the light source bulb is turned on, and FIGS. 18 to 21 are enlarged views of the high-intensity part holder.

The third embodiment shows an example used for a front lens of a vehicular lamp, which is a modified version of the first and second embodiments described above. That is, the high brightness portion is subjected to the light semi-transmission process.

In the figure, the same reference numerals as those in FIGS. 1 to 14 indicate the same parts.

In the figure, 6 is a vehicular lamp. The vehicular lamp 6 is a housing 60 made of polypropylene (PP) or the like having an open front surface, and the resin molding as a front lens arranged in the front opening of the housing 60. 1, and a light source bulb 62 disposed in a lamp chamber 61 defined by the resin molded body 1 and the housing 60.

2E, 2F, 2G, 2H are high-intensity part holders, and these high-intensity part holders 2E, 2F, 2G, 2H are the same as those described later on the resin molded body 1 such as characters and marks of the resin molded body 1. Luminance part 21E, 21F, 21G, 21
After positioning with the letter "H", mark, etc., it is fixed by appropriate means, for example, fixing by hot stamping in the first and second embodiments, adhesive fixing, mechanical fixing.

The high-intensity part holder 2E is fixed by hot stamping. As shown in FIG. 18, a base layer 20E such as polyethylene (PE) or polycarbonate (PC) is used.
And the color clear layer 24E laminated on the base layer 20E
And "I" of the resin molding 1 on the color clear layer 24E.
High brightness part 21E such as light semi-transmissive (70 to 85% light transmission) aluminum vapor deposition layer provided with the same "ICHIKOH" character as "CHIKOH" character, protective layer 22E such as acrylic, and acrylic type And an adhesive layer 23E.

The high-intensity part holder 2F is fixed by hot stamping, and as shown in FIG.
The resin molding 1 "ICHIKO" is formed on the 20F and its base layer 20F.
High brightness part 21F such as a semi-transparent (70-85% light transmissive) aluminum vapor-deposited layer with the same "ICHIKOH" character as the "H" character
And a protective layer 22F and an adhesive layer 23F.

The high-intensity part holder 2G is fixed by hot stamping, and as shown in FIG. 20, a color clear layer 24G, a base layer 20G laminated on the color clear layer 24G, and the base layer thereof. "ICHI" of resin molding 1 on 20G
High brightness part 21 such as aluminum semi-transparent (70-85% light transmission) aluminum vapor deposition layer with the same "ICHIKOH" characters as "KOH" characters
G, a protective layer 22G, and an adhesive layer 23G.

The high-intensity part holder 2H is used for adhesive fixing or mechanical fixing, and as shown in FIG. 21, a color clear layer 24H,
Base layer 20H laminated on the color clear layer 24H
And a semi-transmissive light (70) that has the same "ICHIKOH" characters as the "ICHIKOH" characters of the resin molding 1 on the base layer 20H.
High brightness part 21H such as aluminum vapor deposition layer of ~ 85% light transmission)
It is composed of a protective layer 22H.

As the adhesive fixing or mechanical fixing type high-intensity part holder, in addition to 2H shown in FIG. 21 described above, 2F shown in FIG. 19 described above and 2G shown in FIG. 20 to adhesive layers 23F, 23G. It may be the one without.

The high-intensity part holders 2E, 2F, 2G, 2H are high-intensity parts 21E, 21F, 21G, 21H subjected to light semi-transmission processing and the high-intensity parts 21E, 2H.
It has a light-transmissive colored layer disposed on the back side (light chamber 61 side) of 1F, 21G, and 21H, and other light-transmissive portions.

The resin molded product of the present invention in this embodiment is constituted as described above, and the operation when the high-intensity part holder 2E shown in FIG. 18 is used will be described below.

First, when the light source bulb 62 is off, as shown in FIG. 16, when light from outside (solid arrow) enters the resin molding 1 of the lens, it is reflected by the high-intensity part 21E and the reflected light (Dashed line arrow) is emitted from the resin molded body 1. As a result, the characters "ICHIKOH" with high brightness and high stereoscopic effect are obtained as in the first and second embodiments.

Further, when the light source bulb 62 is turned on, the light (solid arrow) from the light source bulb 62 is emitted from the base layer as shown in FIG.
This lens is colored when passing through 20E and the color clear layer 24E, and the colored light is semi-transmitted through the high-brightness portion 21E and also transmitted through other portions, and further emitted through the resin molded body 1 to the outside. The portion of the resin molded body 1 where the high-intensity part holder 2E is located emits colored light. At the same time, the light (broken line arrow) that passes through the concave surface 10 of the resin molding 1 and is reflected by the other surface (outer surface) of the resin molding 1 passes through the concave surface 10 and has high brightness. It is re-reflected on the surface (outer surface) of the part 21E, passes through the concave surface 10 again, and exits from the resin molding 1 to the outside. Is obtained.

The portion around the above-mentioned "ICHIKOH" character corresponding to the high-intensity part holder 2E may be colored or may be uncolored.

[Effects of the Invention] As is clear from the above, the resin molded product of the present invention has characters and marks formed on one surface of a light-transmissive resin molded body by a concave surface such as a concave groove, while the high brightness portion holder The same characters and marks as the characters and marks of the resin molded body are formed in the high-intensity part, and the high-intensity part holder is provided on one surface of the resin molded body.
Since the characters and marks etc. of the resin molded body and the characters and marks etc. of the high brightness part are positioned, the resin is fixed so as to form a space by the concave surface and the high brightness part. In the part such as the characters and marks corresponding to the space formed by the concave surface of the molded body and the high-intensity part of the high-intensity part holder, a high-luminance feeling is obtained by the light reflecting action in the high-intensity part, and resin molding A high three-dimensional effect can be obtained by the refraction of light on the concave surface of the one surface of the body and the reflection of light on the above-mentioned high brightness portion. Therefore, it is possible to obtain a high-luminance feeling and a high stereoscopic effect only for the characters and marks. Moreover, since the high-intensity part holder is fixed to one surface of the resin molded body, the work is technically easy as compared with the conventional resin molded body in which the high-intensity member is deposited on the concave surface, As a result, it can be manufactured easily and inexpensively.

[Brief description of drawings]

1 to 9 show a first embodiment of a resin molded product according to the present invention, and FIG. 1 is a schematic diagram before fixing a high-intensity part holder to a resin molded product by hot stamping. Sketch,
FIG. 2 is a schematic schematic diagram after the high-intensity part holder is adhered and fixed to the resin molded body, FIG. 3 is a view on arrow III in FIG. 2, and FIG. 4 is a part of characters of the resin molded body. FIG. 5 is a plan view, FIG. 5 is a sectional view taken along the line VV in FIG. 4, FIGS. 6 and 7 are enlarged sectional views of a high-intensity part holder, and FIGS. FIG. 10 to 14 show a second embodiment of the resin molded product according to the present invention, and FIG. 10 is a schematic schematic diagram before the high-intensity part holder is adhered and fixed to the resin molded product, FIG. 11 is a schematic schematic diagram before fixing the high-intensity part holder to the resin molded body by ultrasonic welding, and FIGS. 12 to 14 are enlarged cross-sectional views of the high-intensity part holder. FIGS. 15 to 21 show a third embodiment of the resin molded product according to the present invention, FIG. 15 is a sectional view of an example used for a front lens of a vehicle lamp, and FIG. 16 is a light source bulb when turned off. Explanatory drawing of the
FIG. 17 is an explanatory view when the light source bulb is turned on, and FIGS. 18 to 21 are enlarged sectional views of the high-intensity part holder. 1 ... Resin molded product, 10 ... Concave surface, 2 to 2H ... High brightness part holder, 21 to 21H ... High brightness part, 3 ... Adhesive, 4 ...
... jig, 5 ... ultrasonic welding horn, 6 ... crimping machine.

Claims (1)

[Scope of utility model registration request] 1. A light-transmissive resin molding having a concave surface on which characters and marks are formed, and a high-intensity part having the same characters and marks as those of the resin molding. ,
Moreover, on one surface of the resin molded body, after positioning the characters and marks of the resin molded body and the characters and marks of the high brightness portion, a space is formed by the concave surface and the high brightness portion. A resin molded article, comprising: a high-intensity part holder fixed to the.