Resin molding, component for vehicle, and method for manufacturing resin molding

Abstract

To provide a resin molding which has appearance having enhanced three-dimensional feeling compared to a conventional resin molding and is applied with patterns by contrast of different hues.SOLUTION: A resin molding (10) is constituted as a laminate (36) of a transparent resin layer (26) constituting a transparent resin substrate (24) molded into a predetermined shape, a first film (32) which is formed along the transparent resin layer and is composed of a first coloring material, and a second film (34) which is formed along the transparent resin layer and is composed of a second coloring material, wherein the first film (32) is arranged on the most surface side, and includes three regions of a transparent region (TA), a region (CA1) of the first film, and a region (CA2) of the second film when visually recognized from the surface side.SELECTED DRAWING: Figure 3

Description

Technical Field

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[0001] The present invention relates to a resin molded product used as a vehicle part and a method for manufacturing the resin molded product.

Background Art

[0002] Conventionally, a reflective metal film is formed on one surface of a laminate made of a plate-shaped transparent resin base material, a colored layer is laminated on the other surface, and then a part of the reflective metal film is peeled off by irradiating the reflective metal film with a laser. A vehicle part using a resin molded product with a pattern applied by laser decoration is known (Patent Document 1).

[0003] In the resin molded product disclosed in Patent Document 1, the portion where the metal vapor deposition film is formed is observed as a metallic reflective surface, and the portion where it is not formed is observed as the color of the colored layer. Thus, in the resin molded product of Patent Document 1, an appearance due to the contrast between two types of color layers, the reflective metal film on the front surface side and the colored layer on the back surface side, is provided.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in recent years, the needs of users for vehicle parts using resin molded products having a more three-dimensional appearance have been increasing.

[0006] The present invention has been made in view of such circumstances, and an object thereof is to provide a resin molded product having a pattern formed by a contrast of different color tones and having a more three-dimensional appearance than conventional ones.

Means for Solving the Problems

[0007] To achieve the above objective, a resin molded article according to one aspect of the present invention is configured as a laminate comprising a transparent resin layer constituting a transparent resin substrate molded into a predetermined shape, a first film composed of a first coloring material formed along the transparent resin layer, and a second film composed of a second coloring material formed along the transparent resin layer, wherein the first film is positioned on the outermost surface and, when viewed from the surface side, comprises three regions: a transparent region, a region of the first film, and a region of the second film.

[0008] In the above embodiment, it is also preferable that, when viewed from the surface side, the region of the second film is located between the region of the first film and the transparent region.

[0009] Furthermore, in the above embodiment, it is also preferable that the transparent resin layer is located between the first film and the second film.

[0010] Furthermore, in the above embodiment, it is also preferable that the second film is located on the surface side of the transparent resin layer.

[0011] Furthermore, another aspect of the present invention relates to a vehicle part comprising a resin molded product as described above.

[0012] Furthermore, a method for manufacturing a resin molded article according to another aspect of the present invention comprises a transparent resin layer constituting a transparent resin substrate molded into a predetermined shape, a first film composed of a first coloring material formed along the transparent resin layer, and a second film composed of a second coloring material formed along the transparent resin layer, wherein the laminate, in which the first film is positioned on the surface side relative to the second film, is subjected to the following process: a laser is irradiated from the surface side, focusing on the first film, to peel off a portion of the first film; and a laser is irradiated from the surface side, focusing on the second film, to peel off a portion of the second film, so that three regions—a transparent region, a region of the first film, and a region of the second film—are visible from the surface side.

[0013] Furthermore, in the above embodiment, it is also preferable that the transparent resin layer of the laminate is located between the first film and the second film.

[0014] In the above embodiment, it is also preferable that the second film of the laminate is on the surface side of the transparent resin layer. [Effects of the Invention]

[0015] According to the above-described resin molded product, vehicle part, and method for manufacturing the resin molded product, it is possible to provide a product that has a more three-dimensional appearance than conventional products and has a pattern with contrasting colors. [Brief explanation of the drawing]

[0016] [Figure 1] This is a front view of a vehicle light fixture equipped with an inner lens, which is a resin molded product according to the first embodiment. [Figure 2] (A) is a cross-sectional view along the line IIA-IIA in Figure 1, and (B) is a cross-sectional view along the line IIB-IIB in Figure 1. [Figure 3] (A) is a schematic diagram illustrating the cross-sectional structure of the inner lens of the side turn signal lens according to the embodiment, and (B) is a diagram showing the external appearance of the inner lens. [Figure 4] Figures (A) to (E) illustrate the manufacturing method of the inner lens. [Figure 5] (A) is a schematic diagram illustrating the cross-sectional structure of an inner lens, which is a resin molded product according to the second embodiment, and (B) is a diagram showing the external appearance of the inner lens. [Figure 6] Figures (A) to (E) illustrate the manufacturing method of the inner lens. [Figure 7] (A) and (C) are schematic diagrams showing the cross-sectional structure of the inner lens of a side turn signal lamp according to a third embodiment of the present invention, and (B) and (D) are diagrams showing the external appearance of the inner lens. [Figure 8]Front view of a vehicle lamp including an extension, which is a resin molded product according to the third embodiment. [Figure 9] Horizontal cross-sectional view of the vehicle lamp. [Figure 10] Diagram schematically showing the cross-sectional structure of the extension. [Figure 11] Perspective view schematically showing the appearance of a rear window member as a resin molded product according to the fourth embodiment.

Embodiments for Carrying out the Invention

[0017] Hereinafter, embodiments of the resin molded product and the vehicle lamp according to the present invention will be described with reference to the drawings. In the description of the following embodiments, the same components are denoted by the same reference numerals, and overlapping descriptions are omitted.

[0018] (First Embodiment) The first embodiment embodies the resin molded product according to the present invention as the inner lens 10 of a vehicle lamp 1 which is a vehicle part. FIG. 1 is a front view of the vehicle lamp 1, and FIG. 2 is a cross-sectional view thereof. As will be described later, the inner lens 10 has a decorative pattern that is visually recognized on the appearance, but it is omitted in FIGS. 1 and 2.

[0019] The vehicle lamp 1 is a side turn signal lamp assembled to the door mirror 2 on the left side when viewed from the front of the vehicle.

[0020] As shown in FIGS. 1 and 2, the vehicle lamp 1 includes a lamp body 12, an outer cover 14, a lamp unit 16, and an inner lens 10.

[0021] The lamp body 12 is assembled inside the door mirror 2, has a curved and elongated shape, and is open toward the front. The outer cover 14 is made of a transparent resin, covers the opening on the front surface of the lamp body 12, and the lamp body 12 and the outer cover 14 define a lamp chamber 20.

[0022] Furthermore, the outer cover 14 is configured such that the visible portion 15 is exposed through an opening 4 provided in the door mirror 2.

[0023] The lighting unit 16 comprises a light source substrate 19, a socket 25, and a light guide lens 27. The light source substrate 19 and socket 25 are provided at the vehicle body side end of the lamp body 12, and an LED light source 48 is provided on the light source substrate 19.

[0024] The light guide lens 27 is a light guide made of a transparent resin material such as polycarbonate resin or acrylic resin, and is molded to be elongated so as to follow the lamp body 12 and outer cover 14. In addition, on the surface of the light guide lens 27 facing the outer cover 14, a plurality of reflection steps 50 are formed at predetermined intervals along the entire length in the longitudinal direction. The shape of the reflection steps 50 may be various known shapes, for example, they may be punctate. When the LED light source 48 is turned on, as shown in Figure 2(A), a portion of the emitted light enters the light guide lens 27 from the incident part 54, undergoes repeated internal reflection between the front inner surface 56 and the rear inner surface 58 of the light guide lens 27, and is emitted as illumination light L1 from the rear end of the vehicle. The remaining light is reflected by the reflection steps 50 formed on the rear inner surface 58 of the light guide lens 27 and enters the inner lens 10 as reflected light L2. The light guide lens 27 acts as a surface-emitting light source that emits light uniformly across its entire front surface.

[0025] The inner lens 10 is a resin molded product made by molding a transparent resin such as polycarbonate resin or acrylic resin such as polymethyl methacrylate resin into a predetermined shape, using a transparent resin base material 24. The inner lens 10 has a shape that conforms to the back surface of the outer cover 14 and is positioned between the outer cover 14 and the light guide lens 27. The inner lens 10 is also visible from the outside through the visible portion 15 of the outer cover 14. The area of ​​the inner lens 10 that is visible from the outside is decorated with a decorative pattern 30, as will be described later.

[0026] Figure 3(A) schematically shows the cross-sectional structure of the inner lens 10, and Figure 3(B) shows the inner lens 10 viewed from the surface side. In the figures, the dimensions of each component, especially the ratio of the thickness of the transparent resin substrate 24 and the coating film, are exaggerated schematically for ease of understanding and do not reflect the actual ratios (the same applies to Figures 4, 5(A), 6, 7(A), and 7(B)).

[0027] As shown in Figure 3(A), the inner lens 10 is generally constructed as a laminate 36 of a transparent resin layer 26 constituting a transparent resin substrate 24, a first film 32 formed along the surface side of the transparent resin layer 26, that is, the side facing the outer cover 14, and a second film 34 along the back surface of the transparent resin layer 26.

[0028] As described above, the transparent resin layer 26 is composed of a transparent resin such as polycarbonate resin or acrylic resin. The transparent resin transmits visible light and infrared rays, particularly near-infrared rays with wavelengths of 800-1400 nm. The thickness of the transparent resin layer 26 is 2 to several millimeters.

[0029] The first film 32 is a film composed of the first coloring material, and is specifically a metal vapor-deposited film. As the metal forming the metal vapor-deposited film, aluminum, tin, stainless steel, etc., can be used. In this case, the thickness of the first film 32 is preferably 80 to 200 nm. If it is too thin, some of the incident light will be transmitted, and if it is too thick, the peeling by laser irradiation described later will be incomplete. Alternatively, it may be a reflective metallic coating film containing a metallic pigment that can be painted with an air spray or the like to achieve a mirror finish. In this case, the thickness of the first film 32 is preferably 15 to 20 nm. Thus, the first film 32 is a reflective metallic film having a metallic appearance.

[0030] The second film 34 is a film composed of a second coloring material and is a colored coating film. As the raw material for the colored coating film, for example, an acrylic or urethane resin paint containing a black pigment (e.g., black azo pigment) can be used. This paint containing a black pigment absorbs infrared rays, especially near-infrared rays with wavelengths of 800 to 1400 nm. The thickness of the second film 34 is preferably 15 to 20 nm.

[0031] The laminate 36 comprises a first non-film-forming region NA1 in which the first film 32 is not partially formed, and a second non-film-forming region NA2 in which the second film is not partially formed. The decorative pattern 30 shown in Figure 3(B) is formed in the first non-film-forming region NA1 and the second non-film-forming region NA2. Although a decorative pattern 30a of a stylized string of characters and a decorative pattern 30b of two curves are shown as examples, the decorative pattern 30 is not limited to these and can be any shape, such as dots, marks, or even more complex patterns.

[0032] The inner lens 10 includes a region CA1 of the first film where the metallic reflective surface of the first film 32 is recognized when viewed from the outer cover 14 side, i.e., the surface side; a region CA2 of the second film where the color of the second film 34 is recognized; and a transparent region TA where the transparent resin substrate 24 is recognized.

[0033] Here, the region CA1 of the first film is the region of the first film 32 excluding the region NA1 where the first film is not formed. The region CA2 of the second film is the region of the second film 34 that is visible through the region NA1 where the first film is not formed. The transparent region TA is the region of the first region NA1 where the second film is not formed that corresponds to the region NA2 where the second film is not formed. The decorative pattern 30 is designed to be formed by a combination of the region CA2 of the second film and the transparent region TA. This allows the decorative pattern 30 to be designed using three different combinations of the first film region CA1, which has an overall metallic luster, the transparent region TA, which gives a transparent impression, and the color of the second film region CA2 (black in this example), thereby increasing the variation in contrast.

[0034] For this reason, the decorative pattern 30b may be provided with the second film region CA2 and the transparent region TA not adjacent to each other. Alternatively, if the second film region CA2 is positioned between the first film region CA1 and the transparent region TA, as in the decorative pattern 30a, the second film region CA2 acts like a border around the transparent region TA between the glossy reflective surface in the foreground and the transparent region TA in the background, resulting in a more three-dimensional and three-dimensional appearance.

[0035] In particular, in this embodiment, since the region CA2 of the second film is located on the back side of the transparent region TA, the impression of depth can be further enhanced.

[0036] The above describes the appearance of the vehicle light fixture 1 during the daytime when it is not illuminated. When illuminated at night, the illumination light is projected through the transparent area TA, giving the viewer a novel impression that is different from that of daytime.

[0037] Furthermore, the second film 34 is not limited to black, but can be any color as long as it uses a pigment that absorbs infrared light (near-infrared light with a wavelength of 800 to 1400 nm). For example, acrylic resin-based paints such as acrylic urethane, acrylic silicone, and acrylic lacquer, epoxy resin-based paints, and resin-based paints such as polyphenyl resin, polystyrene resin, polystyrene resin, and polypropylene resin can be used, using azo red (red), phthalocyanine blue (blue), azo yellow (yellow), etc., as pigments. These paints only need to have a spectral transmittance of 50% or more for infrared laser light used in laser irradiation. When the second film 34 is black, the color contrast between the region CA1 and the transparent region TA of the first film becomes clear, which is particularly preferable.

[0038] Next, the manufacturing method of the inner lens 10 will be described. As for the manufacturing method of the inner lens 10, first, a transparent resin base material 24 is prepared by injection molding a transparent resin such as polycarbonate into a predetermined inner lens shape.

[0039] Next, aluminum is deposited onto the surface side of the transparent resin substrate 24 by a method such as resistance heating deposition to form the first film 32.

[0040] Next, a second film 34 is formed on the back side of the transparent resin substrate 24 by a method such as air spraying.

[0041] Laser decoration is then performed on the laminate 36 formed in this manner. Figure 4 is a diagram illustrating the method of laser decoration on the laminate 36.

[0042] First, as shown in Figure 4(A), the focal length of the laser marker 90 is set to distance d1 so that the focal point of the laser marker 90 coincides with the first film 32. As shown in Figure 4(B), the laser LB1 is irradiated to peel (excise) the first film 32 in the region corresponding to the pre-designed first film-free region NA1.

[0043] Next, the workpiece (laminated body 36) is held in place, and as shown in Figure 4(C), the focal length of the laser marker 90 is set to distance d2 so that the focal point of the laser marker 90 coincides with the second film 34. Then, as shown in Figure 4(D), the laser LB2 is irradiated to peel (cut) the second film 34 in the region corresponding to the pre-designed second film non-formed region NA2. As a result, as shown in Figure 4(E), an inner lens 10 can be manufactured in which three regions—the transparent region TA, the first film region CA1, and the second film region CA2—are visible when viewed from the surface side.

[0044] As the laser marker 90, infrared laser markers such as YVO4 lasers, YAG lasers, and CO2 lasers can be used. It is preferable to use a YVO4 laser or a YAG laser. This is because both YVO4 lasers and YAG lasers have a wavelength of 1064 nm and have high absorption rates in metals, resulting in a beautiful finish. The type of laser used can be selected according to the material of the laminate 36. For example, a YVO4 laser has high transmittance to polycarbonate and is advantageous when the transparent resin substrate 24 is polycarbonate.

[0045] There are no particular limitations on the laser irradiation method; a laser plotter (flatbed laser), galvanometer laser, etc., can be selected as appropriate.

[0046] According to the above method, by positioning the black color of the second film region CA2 between the first film region CA1, which has an overall metallic color, and the transparent region TA, which gives a transparent impression, it is possible to manufacture a resin molded product with a sense of depth.

[0047] Furthermore, according to the manufacturing method of this embodiment, the laser irradiation of the first film 32 and the laser irradiation of the second film 34 can be performed while holding the workpiece in the same state without turning it over, thus preventing positional shifts that occur when turning over the workpiece. As a result, misalignment of the decorative position can be prevented.

[0048] (Second Embodiment) Figure 5(A) is a schematic diagram showing the cross-sectional structure of the inner lens 110 of the vehicle lamp 100 according to the second embodiment, and Figure 5(B) is a view of the inner lens 110 from the surface side. The vehicle lamp 100 has the same configuration as the vehicle lamp 1 according to the first embodiment, except for the cross-sectional structure of the inner lens 110, i.e., the arrangement of the transparent resin layer 26, the first film 32, and the second film 34, so redundant explanations are omitted.

[0049] As shown in Figure 5(A), the inner lens 110 is generally composed of a laminate 36 comprising a transparent resin layer 26 constituting a transparent resin substrate 24, a first film 32 formed along the surface side of the transparent resin layer 26, that is, the side facing the outer cover 14, and a second film 34 formed between the first film 32 and the transparent resin layer 26 along the transparent resin layer 26.

[0050] In other words, inner lens 10 and inner lens 110 are similar in that the first film 32 is located on the outermost surface in their cross-sectional structure, but they differ in that in inner lens 10 the transparent resin layer 26 is located between the first film 32 and the second film 34, whereas in inner lens 110 the second film 34 is located on the surface side of the transparent resin layer 26.

[0051] The inner lens 110 includes a region CA1 of the first film where the metallic reflective surface of the first film 32 is recognized when viewed from the outer cover 14 side, i.e., the surface side; a region CA3 of the second film where the color of the second film 34 is recognized; and a transparent region TA where the transparent resin layer 26 is recognized.

[0052] Therefore, as shown in Figure 5(B), the decorative pattern 130 is designed to be formed by a combination of a region CA2 of the second film and a transparent region TA. This allows the decorative pattern 130 to be designed using three types of combinations: a region CA1 of the first film that has an overall metallic color, a transparent region TA that gives a transparent impression, and a region CA3 of the second film that has the color of the second film 34 (black in this example). Thus, the same effects as in the first embodiment can be achieved.

[0053] Due to the difference in arrangement described above, in the second film region CA2 of the inner lens 10, the second film 34 is visible on the back side of the transparent resin layer 26, whereas in the second film region CA3 of the inner lens 110, the second film 34 is visible on the front side of the transparent resin layer 26, i.e., at the very front. Therefore, even if the second film region CA3 of the inner lens 110 and the second film region CA2 of the inner lens 10 are the same color (black in this example), the impression will be slightly different. Consequently, in this embodiment, it is possible to further increase the variation in contrast.

[0054] Next, the manufacturing method of the inner lens 110 will be described. First, the inner lens 110 is formed into a predetermined shape of the inner lens 10 by injection molding a transparent resin such as polycarbonate. Next, a second film 34 is formed on the surface side of the transparent resin substrate 24 in the same manner as in the first embodiment, and the first film is formed on the second film 34 to form a laminate 136.

[0055] Next, as shown in Figure 6, laser decoration is performed on the laminate 136. First, as shown in Figure 6(A), the focal length of the laser marker 90 is set to distance d3 so that the focal point of the laser marker 90 matches the first film 32. As shown in Figure 6(B), the laser LB3 is irradiated to peel off (remove) the first film 32 in the region corresponding to the pre-designed first film non-formed region NA1.

[0056] Next, while holding the workpiece (laminated body 136) in its original state, the focal length of the laser marker 90 is set to distance d4 so that the focal point of the laser marker 90 coincides with the second film 34, as shown in Figure 6(C). Then, as shown in Figure 6(D), the laser LB4 is irradiated to peel (cut) the second film 34 in the region corresponding to the pre-designed second film non-formed region NA2. As a result, as shown in Figure 6(E), an inner lens 10 can be manufactured in which three regions—the transparent region TA, the first film region CA1, and the second film region CA3—are visible when viewed from the surface side.

[0057] Thus, even with the inner lens 110 according to this embodiment, by adjusting the focal length so that the focus of the laser marker 90 matches the first film 32 when peeling off the first film 32, and so that the focus of the laser marker 90 matches the second film 34 when peeling off the second film 34, an inner lens 110 that has the same effect as the inner lens 10 can be manufactured. As a result, there is no need to turn the workpiece over, and therefore misalignment of the decoration position can be prevented.

[0058] In this embodiment, the first film 32 and the second film 34 are adjacent to each other, so their focal lengths are close. This is unlikely to affect the above effect, but even if it does, it can be addressed by adjusting the laser irradiation energy. For example, if the first film 32 is a metal vapor-deposited film and the second film 34 is a non-metallic colored coating film, the laser irradiation energy required for peeling is smaller for the first film 32 than for the second film 34, so the effect on the second film 34 is extremely small. Thus, it is preferable to select the materials for the first film 32 and the second film 34 such that the laser energy required for peeling is greater for the second film 34 than for the first film 32. For example, if the first film 32 is an aluminum vapor-deposited film, the required output energy is 20%, while if the second film 34 is a black paint film, the required output energy is 60%.

[0059] (Third embodiment) Figures 7(A) and 7(C) schematically show the cross-sectional structure of the inner lens 210 of the vehicle lamp 200 according to the third embodiment, and Figures 7(B) and (D) show the inner lens 210 as viewed from the surface side. Figures 7(A) and (B) show the state of the vehicle lamp 200 when it is not lit, and Figures 7(B) and (D) show the state of the vehicle lamp 200 when it is lit. The vehicle lamp 200 has the same configuration as the vehicle lamp 1 according to the first embodiment, except for the materials of the first film 232 and the second film 234 formed on the laminate 236 that constitutes the inner lens 110, so redundant explanations are omitted.

[0060] In the inner lens 210, the first film 232 is a half-mirror vapor-deposited film made of the same metallic material as the first film 32. The thickness of the first film 232 is preferably 20 to 80 nm. If the thickness of the first film 232, which is a metallic reflective film, is less than 20 nm, its function of reflecting incident light will be weakened, and if it is greater than 80 nm, its function of transmitting incident light will be weakened, making it impossible to perform the function of a half-mirror that transmits some of the incident light and reflects some of it.

[0061] Furthermore, the second film 234 is a colored transparent coating that absorbs infrared light and partially transmits visible light. As the material for the second film 234, colored transparent coatings can be made from acrylic resins such as acrylic urethane, acrylic silicone, and acrylic lacquer, epoxy resins, and resins such as polyphenyl resin, polystyrene resin, polystyrene resin, and polypropylene resin, using pigments that absorb infrared light and partially transmit visible light. As the colored transparent coating, a black transparent coating that absorbs infrared light is preferred, but the material is not limited thereto, and coatings using pigments of any color that absorb infrared light and partially transmit visible light can be used.In this specification, "black transparent" refers to black-based colors that exhibit visible light transmittance, such as gray smoke.

[0062] As shown in Figure 7(A), when the vehicle lights 200 are not illuminated during the daytime, the inner lens 210 reflects natural light off the surface of the first film 232, and region CA4 of the first film exhibits the appearance of a metallic reflective surface, similar to the inner lens 10. On the other hand, region CA5 of the second film exhibits the color of the colored transparent paint.

[0063] As a result, the decorative pattern 230 exhibits an appearance formed by a combination of a second film region CA5 and a transparent region TA within a first film region CA4 that shows the appearance of a metallic reflective surface. This allows the decorative pattern 230 to be designed using three combinations of the first film region CA4, which has an overall metallic luster, the transparent region TA, which gives a transparent impression, and the color (preferably black) of the second film region CA5, thereby achieving the same effects as the first embodiment.

[0064] On the other hand, when the vehicle lights 200 are illuminated at night, in the transparent region TA, the light emitted from the light guide lens 27 passes straight through and is irradiated toward the front of the vehicle (the surface side of the inner lens 210). As a result, the transparent region TA exhibits a luminous appearance. In the region CA4 of the first film, the light emitted from the light guide lens 27 passes through the second film 234 and, as light with the color tone of the second film 234, passes through the first film and is irradiated toward the front of the vehicle. As a result, the region CA4 of the first film exhibits an appearance of emitting a dark light with the color tone of the second film 234. In the region CA5 of the second film, the light emitted from the light guide lens 27 passes through the second film 234 and, as light with the color tone of the second film 234, passes through the transparent resin layer 26 and is irradiated toward the front of the vehicle. As a result, region CA5 of the second film exhibits an appearance that emits light in the color tone of the second film.

[0065] As a result, when illuminated, as shown in Figure 7(D), the decorative pattern 230 can be designed using three combinations of regions: CA4 of the first film that emits a dark light with the color tone of the second film, TA of the transparent region that shines brightly, and CA5 of the second film that emits a light with the color tone of the second film. This allows for even more varied appearances.

[0066] (Fourth embodiment) Figures 8 and 9 show a vehicle light fixture 300 equipped with an extension 310, which is a vehicle part embodying a resin molded product according to the fourth embodiment of the present invention. The vehicle light fixture 300 is a right-side headlight located on the right side when viewed from the front of the vehicle.

[0067] The vehicle lighting fixture 300 comprises a container-shaped lamp body 312 with an opening at the front, an outer cover 314 that covers the front opening of the lamp body 312 and defines a lamp chamber 320, a lighting unit 316, a light source 318 for a clearance lamp, and an extension 310. The lighting unit 316 mainly comprises a projection lens 317, an LED light source 322, a reflector, and a shade. The lighting unit 316 is configured to be switchable between high beam and low beam.

[0068] The light source 18 for the clearance lamp is, for example, a halogen bulb, and is located to the side of the luminaire unit 316.

[0069] The extension 310 is a resin molded product made by molding a transparent resin such as polycarbonate resin or polymethyl methacrylate resin or other acrylic resin into a predetermined shape as the transparent resin base material 324. The extension 310 is positioned between the lighting unit 316 and the outer cover 314, and its front shape corresponds to the front shape of the vehicle lighting unit 300.

[0070] A circular opening 340 is provided on one side of the extension 310 relative to its center. A lighting unit 316 is positioned behind the opening 340, and the projection lens 317 of the lighting unit 316 protrudes from the opening 340. When the LED light source 322 is turned on, the emitted light passes through the opening 340 and is emitted forward.

[0071] On the side of the extension 310 opposite the opening 340 relative to the center, a clearance lamp light transmission area 328 is provided, and a clearance lamp light source 318 is positioned behind it.

[0072] Numerous steps 350 are formed on the back surface of the clearance lamp light-transmitting region 328 in the extension 310. When the clearance lamp light source 318 is lit, the light emitted from the clearance lamp light source 318 passes through the steps 350 and the clearance lamp light-transmitting region 328, and is emitted forward as diffused light.

[0073] As shown in Figure 10, the cross-sectional structure of the extension 310 is generally the same as that of the inner lens 110 in the second embodiment. That is, a colored coating film similar to the second film 34 is formed on the surface of a transparent resin substrate 324 that is injection-molded into the shape of the extension 310 as a second film 334, and a reflective metal film similar to the first film 32 is formed on the second film 334 as a first film 332. In a front view, decorative patterns 330a and 330b formed by the region CA7 of the second film are formed so as to surround the periphery of the clearance lamp light transmission region 328 of the extension 310, where the first film region CA6 as a whole is visible, and the opening 340. In addition, a string of characters formed by the transparent region TA and the region of the second film is formed as a decorative pattern 330c in the upper left. The clearance lamp light transmission region 328 is a transparent region TA1 with a step on the back.

[0074] Thus, the extension 310 can achieve the same sense of depth as the embodiment described above. Furthermore, although the extension 310 has steps on its back side, the laser is irradiated from only one direction on the front side, so there are no difficulties in making the clearance lamp light transmission area a transparent area TA.

[0075] (Fifth embodiment) Figure 11 shows a rear window member 400 as a vehicle component according to the fifth embodiment. This rear window member 400 is formed as a single rectangular panel extending laterally, in order to replace the rear window glass and its peripheral panel of an existing vehicle.

[0076] As shown in Figure 11, the rear window member 400 includes a transparent resin substrate 424. The transparent resin substrate 324 has a panel shape corresponding to the rectangular panel shape of the rear window member 400, with one side in the thickness direction being the surface and the other side being the inner surface of the vehicle.

[0077] The transparent resin substrate 424 is molded using a transparent resin such as polycarbonate resin. The lower edge of the rear window member 400 is provided with a band-shaped peripheral panel region 460 of a predetermined width, which corresponds to a peripheral panel. The peripheral panel region 460 has substantially the same cross-sectional structure as the inner lens 10 of the first embodiment and includes a first film and a second film formed on the surface side of the transparent resin substrate 424, although these are not shown. The peripheral panel region 460 is visible as the region CA7 of the first film, and the decorative pattern 430 is formed by the region CA7 of the first film, the region CA8 of the second film, and the transparent region TA. Thus, the present invention can also be applied as a rear window member, which is a part that partially replaces the vehicle body panel.

[0078] Although embodiments of the present invention have been described above, the present invention is not limited thereto and can be applied to various vehicle parts. Furthermore, it goes without saying that various modifications or alterations based on this disclosure are within the scope of the present invention. [Explanation of Symbols]

[0079] 24: Transparent resin base material 26: Transparent resin layer 32: First membrane 34: The second membrane 36: Laminate 136: Laminate 232: First membrane 234: The second membrane 236: Laminate 324: Transparent resin base material 332: First membrane 334: The second membrane 424: Transparent resin base material

Claims

1. A transparent resin layer constituting a transparent resin substrate formed into a predetermined shape; a first film formed along the transparent resin layer and made of a first coloring material; a second film formed along the transparent resin layer and made of a second coloring material; the first film is disposed on the outermost surface side; A resin molded product characterized in that, when viewed from the front surface side, it has three regions: a transparent region, a region of the first film, and a region of the second film.

2. The resin molded product according to claim 1, characterized in that, when viewed from the front surface side, the second film area is positioned between the first film area and the transparent area.

3. 3. The resin molded product according to claim 1, wherein the transparent resin layer is disposed between the first film and the second film.

4. 3. The resin molded product according to claim 1, wherein the second film is located closer to the front surface than the transparent resin layer.

5. A vehicle part comprising the resin molded product according to any one of claims 1 to 4.

6. a laminate including a transparent resin layer constituting a transparent resin substrate molded into a predetermined shape, a first film formed along the transparent resin layer and made of a first coloring material, and a second film formed along the transparent resin layer and made of a second coloring material, the first film being disposed on a front surface side relative to the second film, the laminate being irradiated with a laser from the front surface side with the laser focused on the first film to peel off a portion of the first film; irradiating the laminate with a laser from the front surface side while focusing on the second film to peel off a part of the second film; A method for manufacturing a resin molded product, characterized in that three areas, namely, a transparent area, an area of ​​the first film, and an area of ​​the second film, are visible from the front surface side.

7. 7. The method for producing a resin molded product according to claim 6, wherein the laminate has the transparent resin layer between the first film and the second film.

8. The method for producing a resin molded product according to claim 6, wherein the second film is disposed on the front surface side of the laminate relative to the transparent resin layer.

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