Decorated shaped article and method of manufacturing the same

Abstract

The present invention provides a decorative molded article in which the color tone of light that makes a specific portion bright can be easily adjusted, and in which a specific portion of a decorative molded article can be made bright with a simple system. A decorative molded article (10) makes a millimeter wave, which is an electric wave processed by a radar device (2) that is a wireless device, transparent, and makes a specific portion (15) bright with light emitted from a light-emitting device (5). A first reflection layer (40) is formed so as to have a first opening portion (41) on the back surface (22) of a molded body (20), reflects light incident from the first opening portion (41), and makes the millimeter wave transparent. A first colored portion (50) makes the millimeter wave transparent and colors the light incident from the first opening portion (41) to produce first colored light. A concealing layer (32) of a decorative sheet (30) is fixed to a light-transmissive film (31), makes the millimeter wave transparent, and shields the first colored light. The concealing layer (32) has a second opening portion (32a) that is disposed at the specific portion (15) of the light-transmissive film (31) and that is used to take out the first colored light toward the front of the surface from the molded body (20).

Description

Technical Field

[0001] This invention relates to decorative molded articles and methods for manufacturing decorative molded articles, and particularly to decorative molded articles capable of transmitting radio waves and emitting light in specific areas, and methods for manufacturing the same. Background Technology

[0002] Conventionally, as described in Patent Document 1 (Patent No. 5132656), decorative components called emblems are installed on automobiles. These decorative components are molded decorative articles manufactured by injection molding of thermoplastic components. Furthermore, when the emblem, installed on the front of the automobile, is positioned in front of a radar device, it is required that radio waves with wavelengths of 1 mm to 10 mm, referred to as millimeter waves, pass through the emblem.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Patent No. 5132656 Summary of the Invention

[0006] The technical problem that the invention aims to solve

[0007] The decorative component in Patent Document 1 is made of a material that allows millimeter waves transmitted and received by a radar device and visible light used for decoration to pass through.

[0008] However, the decorative component itself does not have the function of guiding light to illuminate specific parts of the decorative component. Therefore, in Patent Document 1, the light-emitting device of the decorative component, in addition to the light-emitting device itself, also employs a configuration with a light guide plate for guiding light to specific parts and a housing with a reflective surface. To install the light guide plate and reflective surface, the light-emitting device becomes a large-scale device, increasing the price of both the decorative component and the light-emitting device, and requiring more space. Furthermore, to change the color of the transmitted light, it is necessary to change the color of the light source or color the transmitting part. It is difficult to adjust subtle hues using such a light guide plate and reflective surface.

[0009] The objective of this invention is to provide a decorative molded article that allows for easy adjustment of the hue of light to illuminate specific areas, and that enables the illumination of specific areas of the decorative molded article using a simple system.

[0010] Solutions for solving technical problems

[0011] The following describes several approaches as solutions to technical problems. These approaches can be combined arbitrarily as needed.

[0012] One aspect of the present invention relates to a decorative molded article that allows radio waves processed by a wireless device performing at least one of transmitting and receiving radio waves to pass through, and illuminates a specific portion of the article with light emanating from a light-emitting device. The decorative molded article comprises a molded body, a decorative sheet, a first reflective layer, and a first coloring portion. The molded body is formed into a predetermined shape and comprises a light-transmitting polymer capable of allowing radio waves to pass through and light from the light-emitting device to pass through. The decorative sheet is simultaneously bonded to the surface of the molded body. The first reflective layer is formed to have a first opening on the back side of the molded body, reflecting light incident from the first opening and allowing radio waves to pass through. The first coloring portion allows radio waves to pass through and colors the light incident from the first opening to generate a first colored light. The decorative sheet comprises: a light-transmitting film that allows radio waves and light to pass through; and a shielding layer fixed to the light-transmitting film, allowing radio waves to pass through and shielding the first colored light. The shielding layer is configured to have a second opening disposed at a specific portion of the light-transmitting film for extracting the first colored light from the front of the molded body toward the surface.

[0013] It should be noted that, in this context, "radio wave" refers to electromagnetic waves ranging from 10 kHz to 3000 GHz that are generated by the reversal of current within a conductor.

[0014] In this type of decorative molded article, light, for example from a light-emitting device, enters through a first opening on the back side of the molded body. The light travels through the light-transmitting polymer of the molded body and is extracted from a second opening in the concealed layer of the decorative sheet adhered to the surface of the molded body, pointing towards the front of the surface of the molded body. Specific areas of the decorative molded article can be illuminated by the light extracted from the second opening. Furthermore, light reflected by the first reflective layer provided on the back and surface of the molded body, traveling through the light-transmitting polymer, is colored by the first coloring portion and becomes first colored light. By forming a light-guiding path using the light-transmitting polymer of the molded body, the decorative sheet, and the first reflective layer, a separate light guide plate and reflective layer are not required, simplifying the system for illuminating the decorative molded article using a light-emitting device.

[0015] In the aforementioned decorative molded article, the decorative piece may also have a second reflective layer formed between the molded body and the concealed layer, allowing radio waves to pass through and reflecting the first colored light reflected by the first reflective layer towards the first reflective layer. This type of decorative molded article, by reflecting the first colored light towards the first reflective layer using the second reflective layer, can increase the amount of the first colored light extracted from the second opening.

[0016] Preferably, the first coloring part of the aforementioned decorative molded article is the first coloring layer of the decorative sheet. The first coloring layer of the decorative sheet is disposed on the surface of the molded article and fixed to a light-transmitting film, allowing radio waves to pass through and coloring the light incident from the first opening to generate first colored light. The decorative molded article constructed in this way can color light through the first coloring layer of the decorative sheet, thus simplifying the construction of the decorative molded article.

[0017] The aforementioned decorative molded article may also include a second colored portion that generates a second colored light, a first reflective layer having a third opening different from the first opening at the position where light is guided to the second colored portion, and a decorative piece configured as a concealed layer that allows the second colored light reflected by the first reflective layer to be extracted from the front of the surface through the second opening. Decorative molded articles constructed in this way can selectively illuminate specific areas using both the first and second colored light, thus improving their aesthetic design.

[0018] The aforementioned decorative molded article can also have a smoke screen portion provided for the second opening, wherein the smoke screen portion allows radio waves to pass through and has a transmittance lower than that of the molded body. This configuration makes the boundary between the second opening and the concealed layer less noticeable, thus improving aesthetics.

[0019] The aforementioned decorative molded article can also be configured such that the decorative piece has a second reflective layer formed between the molded body and the shielding layer, allowing radio waves to pass through and reflecting the first colored light reflected by the first reflective layer towards the first reflective layer. The decorative piece is arranged such that the second reflective layer closes the second opening, and the second reflective layer functions as a smoke screen. This configuration allows the smoke screen portion of the second opening to also function as the second reflective layer, simplifying the structure of the decorative molded article with the smoke screen portion positioned at the second opening.

[0020] Other aspects of the present invention relate to decorative molded articles that illuminate specific areas by light irradiated from a light-emitting device, and include a molded body, a decorative sheet, a first reflective layer, and a first coloring portion. The molded body is formed into a predetermined shape and contains a light-transmitting polymer that allows light from the light-emitting device to pass through. The decorative sheet is simultaneously bonded to the surface of the molded body. The first reflective layer is formed with a first opening on the back side of the molded body to reflect light incident from the first opening. The first coloring portion colors the light incident from the first opening to generate a first colored light. The decorative sheet includes: a light-transmitting film that allows light to pass through; and a shielding layer fixed to the light-transmitting film to shield the first colored light. The shielding layer is configured to have a second opening disposed at a specific location on the light-transmitting film for extracting the first colored light from the front of the molded body toward the surface.

[0021] In this type of decorative molded article, light, for example from a light-emitting device, enters through a first opening on the back side of the molded body. The light travels through the light-transmitting polymer of the molded body and is extracted from a second opening in the concealed layer of the decorative sheet adhered to the surface of the molded body, pointing towards the front of the surface of the molded body. Specific areas of the decorative molded article can be illuminated by the light extracted from the second opening. Furthermore, light reflected by a first reflective layer provided on the back and surface of the molded body, in a manner that allows light to travel through the light-transmitting polymer, is colored by a first coloring portion, becoming first colored light. In this way, a light-guiding path can be formed by the light-transmitting polymer of the molded body, the decorative sheet, and the first reflective layer. This eliminates the need for additional components such as light guide plates and reflective layers besides the decorative molded article, simplifying the system for illuminating the decorative molded article using a light-emitting device.

[0022] One aspect of the present invention relates to a method for manufacturing a decorative molded article, which transmits radio waves processed by at least one of a wireless device that transmits and receives radio waves, and illuminates a specific portion of the decorative molded article through a light-emitting device. The method comprises: placing a decorative piece in a mold and closing the mold; injecting molten material into the cavity of the mold to form a molded body made of a translucent polymer that allows both radio waves and light from the light-emitting device to pass through, and bonding the decorative piece to the surface of the molded body; and forming a first reflective layer on the back side of the molded body having a first opening and allowing radio waves to pass through. The decorative sheet comprises: a light-transmitting film that allows radio waves and light to pass through; a first coloring layer fixed to the light-transmitting film that allows radio waves to pass through and colors light incident from a first opening to produce a first colored light; a shielding layer fixed to the light-transmitting film that allows radio waves to pass through and shields the first colored light; and a second reflective layer formed between the molded body and the shielding layer that allows radio waves to pass through and reflects the first colored light reflected by the first reflective layer toward the first reflective layer. The shielding layer is configured to have a second opening, which is disposed at a specific location on the light-transmitting film for extracting the first colored light from the front of the molded body toward the surface.

[0023] In the above-described method for manufacturing decorative molded articles, a decorative sheet adhered to the surface of a molded body can be used to simultaneously mold and decorate, resulting in a structure where, for example, light from a light-emitting device enters through a first opening on the back side of the molded body, travels through the light-transmitting polymer of the molded body, and is extracted from a second opening in the concealing layer towards the front of the surface of the molded body. Furthermore, a decorative molded article can be easily manufactured using the decorative sheet where light reflected by a first reflective layer and a second reflective layer disposed on the back side and surface of the molded body, in a manner where light travels through the light-transmitting polymer, is colored by a first coloring layer to become first colored light.

[0024] The above-described method for manufacturing decorative molded articles can also be used to manufacture decorative molded articles using the following components: a first reflective layer has a third opening different from the first opening; the decorative sheet is configured to have a second colored layer that colors light incident from the third opening to generate a second colored light; the second reflective layer is configured to reflect the second colored light toward the first reflective layer; and the concealing layer is capable of absorbing the second colored light toward the front of the surface. In this method for manufacturing decorative molded articles, decorative molded articles with improved appearance design can be easily manufactured using decorative sheets, allowing specific areas to be selectively illuminated by the first and second colored lights.

[0025] Invention Effects

[0026] The decorative molded article according to the present invention allows for easy adjustment of the hue of light to illuminate specific areas of the decorative molded article, enabling the illumination of specific areas of the decorative molded article with a simple system. Furthermore, the decorative molded article according to the present invention can be easily manufactured. Attached Figure Description

[0027] Figure 1 This is a schematic top view of a car using the decorative molded article involved in the embodiment.

[0028] Figure 2 This is a schematic side view of a car using the decorative molded article involved in the embodiment.

[0029] Figure 3 It is a cross-sectional view used to illustrate the configuration examples of decorative molded articles, radar devices, and light-emitting devices.

[0030] Figure 4 This is a schematic diagram showing the outline of the radar device and the light-emitting device arranged on the back side of the decorative molded article.

[0031] Figure 5 This is a schematic diagram illustrating an example of a decorative molded article according to an embodiment.

[0032] Figure 6 This is a schematic cross-sectional view showing the structure of the decorative molded article according to the embodiment.

[0033] Figure 7 It is a schematic cross-sectional view of the mold closing process used to illustrate the manufacturing process of decorative molded articles.

[0034] Figure 8 It is a schematic cross-sectional view illustrating the injection of molten material in the manufacturing process of decorative molded articles.

[0035] Figure 9 This is a schematic cross-sectional view used to illustrate the formation of the first reflective layer on the shaped body.

[0036] Figure 10 This is a schematic cross-sectional view showing an example of the composition of the decorative molded article involved in variation C.

[0037] Figure 11 This is a schematic cross-sectional view showing an example of the composition of the decorative molded article involved in variant D. Detailed Implementation

[0038] (1) Overall composition

[0039] exist Figure 1 and Figure 2 The image schematically shows car 1. Figure 1 The image shows the state of car 1 as viewed from above. Figure 2 The image shows a view of the car 1 from the side. A radar device 2 is mounted on the front of the car 1. The radar device 2 at the front of the car 1 emits a millimeter-wave beam 3 towards the front of the car 1. If there is an obstacle or other object to be detected in front of the car 1, the millimeter wave emitted from the radar device 2 will hit the object and be reflected. The radar device 2 receives the millimeter wave that has hit the object and been reflected. Through this transmission and reception of millimeter waves, the radar device 2 detects the object. The transmission and reception of millimeter waves by the radar device 2 is crucial for accurate detection of the object.

[0040] like Figure 3 As shown, at the front end of the car 1, a decorative molded part 10 is mounted in front of the radar device 2. The decorative molded part 10 is, for example, the logo of the car 1. Figure 3 The radar device 2 shown transmits and receives millimeter waves through the decorative molded article 10. In other words, the decorative molded article 10 allows both the transmitted and received waves of the radar device 2 to pass through. Here, the case where the decorative molded article 10 allows both the transmitted and received waves to pass through is described, but the decorative molded article may also allow only one of the transmitted or received millimeter waves to pass through. The decorative molded article 10 decorates the components of the car 1 by, for example, covering at least a portion of the radar device 2 that detects objects by transmitting and receiving millimeter waves. The millimeter waves described in this embodiment are an example of radio waves that pass through the decorative molded article 10. The radar device 2 is an example of a wireless device that processes radio waves that pass through the decorative molded article 10.

[0041] Additionally, light enters from the light-emitting device 5 onto the decorative molded article 10. Figure 4 The diagram shows the positional relationship of the radar device 2, the light-emitting device 5, and the decorative molded part 10 as viewed from the front of the car 1. (For example...) Figure 4As shown, the light-emitting device 5 is configured, for example, to include four LEDs 5a, 5b, 5c, and 5d. LED is an abbreviation for Light Emitting Diode. LEDs 5a, 5b, 5c, and 5d are arranged on the upper, lower, right, and left edges of the back side of the decorative molded article 10. The outermost ellipse corresponds to the outer periphery of the decorative molded article 10. Figure 5 The image shows an example of the shape of the decorative molded part 10 as viewed from the front of the car 1. The decorative molded part 10 is patterned and depicts the word "ni" within an oval frame 11. Figure 3 The cross section of the decorative molded article 10 shown is along the Figure 5 The cross-section corresponding to the cut of line II. The oval frame 11 and the text portion 12 of "ni" of the decorative molded article 10 are raised. The decorative molded article 10 is formed by the molded body 20 (see reference). Figure 6 The character shape is formed by the convex shape of the letter "ni".

[0042] Since the car 1 is also used at night, the decorative molded article 10 is configured to illuminate specific parts 15 via a light-emitting device 5. Specific parts 15... Figure 5 The area shown in the middle is indicated by dotted shading.

[0043] (2) Detailed Composition

[0044] like Figure 6 As shown, the decorative molded article 10 includes a molded body 20, a decorative piece 30, a first reflective layer 40, and a first colored portion 50. Figure 6 In the diagram, arrow Ar1 indicates the transmitted millimeter wave, arrow Ar2 indicates the received millimeter wave, and arrow Ar3 indicates the light emitted from the light-emitting device 5. Arrow Ar4 indicates the light reflected by the second reflective layer 33, and arrow Ar5 indicates the light reflected by the first reflective layer 40.

[0045] The molded body 20 is primarily a component that determines the shape of the decorative molded article 10. Therefore, the molded body 20 is formed into a specified shape in a manner that fulfills the required shape of the decorative molded article 10. This molded body 20 is required to have the functions of allowing millimeter waves to pass through and allowing light to pass through. The molded body 20 is a component manufactured by injection molding, using a thermoplastic material formed from a light-transmitting polymer.

[0046] Decorative sheet 30 is simultaneously bonded to surface 21 of molded body 20. Decorative sheet 30 is made of a material that allows millimeter waves to pass through.

[0047] A first reflective layer 40 is formed on the back surface 22 of the molded body 20. The first reflective layer 40 reflects light and allows millimeter waves to pass through. The first reflective layer 40 has a first opening 41. The first opening 41 is either a portion where the first reflective layer 40 is not formed, or, in the case where the first reflective layer 40 allows light to pass through according to the incident direction of the light, the portion that allows light to pass through the first reflective layer 40 and be guided to the molded body 20 can be considered the first opening. For example, this can be considered when the first reflective layer 40 is formed by a film that reflects light incident from an oblique direction and allows light incident perpendicularly to pass through.

[0048] The first coloring portion 50 allows millimeter waves to pass through and colors the light incident from the first opening 41 to generate first colored light. The first colored light generated by the first coloring portion 50 is reflected by the first reflective layer 40 and travels within the molded body 20. The first colored light traveling within the molded body 20 passes through the second opening 32a and the fourth opening 33a and exits outside the concealment layer 32, thereby illuminating a specific area 15.

[0049] The decorative sheet 30 includes: a light-transmitting film 31 that allows millimeter waves and light to pass through; and a shielding layer 32 fixed to the light-transmitting film 31, allowing millimeter waves to pass through and shielding the first colored light. The shielding layer 32 has a second opening 32a disposed at a specific portion 15 of the light-transmitting film 31. The second opening 32a is an opening for allowing the first colored light to be extracted from the molded body 20 towards the front of the surface 21 of the molded body 20. For example, in... Figure 5 The second opening 32a is positioned around the specific part 15 around the character “ni” and the specific part 15 of the circle.

[0050] (2-1) Molded body 20

[0051] The molded body 20 is a molded body made of a thermoplastic material formed from a light-transmitting polymer by injection molding. Examples of thermoplastic materials constituting the molded body 20 include thermoplastic resins and thermoplastic elastomers. Examples of thermoplastic resins used in the molded body 20 include polycarbonate resin, acrylic resin, and ABS resin. When a specific portion 15 is provided in the thermoplastic material to make it glossy, the thermoplastic material must be able to transmit millimeter waves and be light-transmitting. Millimeter waves pass through polycarbonate resin, acrylic resin, and ABS resin, therefore the radar device 2 can transmit and receive millimeter waves through a decorative molded article 10 having the molded body 20 formed from these thermoplastic resins. Here, the case where the molded body 20 is only composed of a light-transmitting polymer has been described. However, the molded body 20 may also contain materials other than thermoplastic materials. For example, ceramics or glass that can transmit millimeter waves can be inserted and molded together with a light-transmitting thermoplastic resin.

[0052] like Figure 6As shown, the transmissive polymer of the molded body 20 forms a light guide path that serves as a channel for light. The thickness of the molded body 20 that forms the portion of the light guide path is preferably, for example, 1 mm or more.

[0053] (2-2) Decorative piece 30

[0054] Decorative piece 30 has a second reflective layer 33. The second reflective layer 33 is formed between molded body 20 and cover layer 32, allowing millimeter waves to pass through and reflecting the first colored light reflected by the first reflective layer 40 towards the first reflective layer 40. A fourth opening 33a is formed in the second reflective layer 33. The fourth opening 33a is positioned to overlap with the second opening 32a. The first colored light reflected by the first reflective layer 40 passes through the second opening 32a and the fourth opening 33a and radiates to the front of molded body 20.

[0055] The thickness of the light-transmitting film 31 can generally be selected from, for example, a range of 10 μm to 500 μm. In order to easily follow the three-dimensional shape of the molded body 20, the thickness of the light-transmitting film 31 is preferably 15 μm to 100 μm.

[0056] The light-transmitting film 31 can be made of, for example, resin or elastomer. The resin-based light-transmitting film 31 can be selected from resin films formed from polyester resin, polyethylene terephthalate (PET) resin, acrylic resin, polycarbonate resin, polybutylene terephthalate (PBT) resin, triacetyl cellulose resin, styrene resin, or ABS resin; multilayer films of acrylic resin and ABS resin; or multilayer films of acrylic resin and polycarbonate resin. Furthermore, as the elastomer used for the light-transmitting film 31, thermoplastic elastomers (TPEs) can be used, for example. Examples of thermoplastic elastomers include amide-based TPEs (TPA), ester-based TPEs (TPC), olefin-based TPEs (TPO), styrene-based TPEs (TPS), and polyurethane-based TPEs (TPU).

[0057] The shielding layer 32 is a layer used to block light. The shielding layer 32 can also be configured to cover the entire outer periphery of the decorative molded article 10. For example, when the shielding layer 32 covers the side of the decorative molded article 10, a decorative piece 30 is formed by pre-forming, and the decorative piece 30 covers the side of the decorative molded article 10. The shielding layer 32 is formed on the light-transmitting film 31 by, for example, gravure printing or screen printing. The materials constituting the shielding layer 32 include, for example, acrylic resins, vinyl chloride-vinyl acetate copolymer resins, thermoplastic polyurethane resins, polyester resins, and other resins, as well as pigments or dyes added to the resin. The pigments and dyes can be selected to avoid attenuating millimeter waves.

[0058] The second reflective layer 33 is, for example, composed of white ink, indium vapor deposition, tin vapor deposition, retroreflective ink, or metallic ink with millimeter-wave transmissivity. When using white ink, retroreflective ink, or metallic ink with millimeter-wave transmissivity, the second reflective layer 33 is formed, for example, by gravure printing or screen printing. Indium vapor deposition and tin vapor deposition are, for example, performed using vacuum vapor deposition.

[0059] Although the illustration is omitted, an adhesive layer can be provided between the second reflective layer 33 and the molded body 20, and the second reflective layer 33 can also be configured to function as an adhesive layer. For example, a thermoplastic resin can be used in the adhesive layer. Examples of thermoplastic resins used for the adhesive layer include polyurethane resins, polyester resins, polyamide resins, acrylic resins, and vinyl chloride-vinyl acetate copolymer resins. The adhesive layer exhibits adhesiveness through the heat of the molten resin, thereby increasing the adhesion between it and the molded body 20. The thickness of the adhesive layer is, for example, a film thickness of 2 μm to 20 μm after drying.

[0060] (2-3) First reflective layer 40

[0061] The first reflective layer 40 is composed, for example, white ink, indium vapor deposition, tin vapor deposition, retroreflective ink, a metallic-style film, or other inks with millimeter-wave transmissivity. When using white ink, retroreflective ink, or inks with millimeter-wave transmissivity, the first reflective layer 40 is formed by, for example, gravure printing or screen printing. Indium vapor deposition and tin vapor deposition are performed using, for example, vacuum vapor deposition. As a metallic-style film, for example, PICASUS (registered trademark) manufactured by Toray Industries, Inc. In the case of a metallic-style film, the metallic-style film is bonded to the molded body 20 by insertion molding during the molding of the molded body 20.

[0062] (2-4) First coloring part 50

[0063] In the first embodiment, the first coloring portion 50 is the first coloring layer 34 of the decorative sheet 30 disposed on the surface 21 of the molded body 20. The first coloring layer 34 is fixed to the light-transmitting film 31, allowing millimeter waves to pass through, and coloring the light incident from the first opening 41 to generate first colored light. The second reflective layer 33 of the decorative sheet 30 is formed, for example, by gravure printing or screen printing. The materials constituting the first coloring layer 34 include, for example, acrylic resins, vinyl chloride-vinyl acetate copolymer resins, thermoplastic polyurethane resins, polyester resins, and other resins, as well as pigments or dyes added to the resin. The pigments and dyes can be selected to avoid attenuating millimeter waves.

[0064] (3) Method for manufacturing decorative molded article 10

[0065] use Figure 7 , Figure 8 as well as Figure 9 The manufacturing method of the decorative molded article 10 will be explained below. First, as... Figure 7 As shown, the decorative piece 30 is placed in the mold 100 and the mold is closed. The decorative piece 30 has a light-transmitting film 31, a concealing layer 32, a second reflective layer 33, and a first coloring layer 34. For example, when the concealing layer 32 covers the side of the decorative molded article 10, the decorative piece 30 is pre-formed by pre-forming before being placed in the mold 100. The first mold 101 and the second mold 102 of the mold 100 form a cavity 103 inside when the mold is closed.

[0066] like Figure 8 As shown, molten material 200 is injected into the cavity 103 of the mold 100. The molten material 200 is cooled and solidified to form a molded body 20 made of a light-transmitting polymer that allows millimeter waves to pass through and allows light from the light-emitting device 5 to pass through. At this time, the decorative piece 30 is simultaneously bonded to the surface of the molded body 20.

[0067] like Figure 9 As shown, a first reflective layer 40 having a first opening 41 and allowing millimeter waves to pass through is formed on the back surface 22 of the molded body 20. The first reflective layer 40 is formed, for example, by applying white ink to the back surface 22 of the molded body 20, excluding the area of ​​the first opening 41, using a printing technique.

[0068] It should be noted that, in the case where the first reflective layer 40 is formed by a metallic-style film, the metallic-style film can also be placed in the mold 100 before mold closing, and the first reflective layer 40 can be formed by insertion molding.

[0069] (4) Features

[0070] (4-1)

[0071] In the decorative molded article 10 of the above embodiment, light enters from the first opening 41 of the back surface 22 of the molded body 20, and the light from the light-emitting device 5 travels within the light-transmitting polymer of the molded body 20. The light from the light-emitting device 5 is extracted from the second opening 32a of the concealing layer 32 of the decorative piece 30 adhered to the surface 21 of the molded body 20 toward the front of the surface 21 of the molded body 20. A specific portion 15 of the decorative molded article 10 can be illuminated by the light from the light-emitting device 5 extracted from the second opening.

[0072] Furthermore, light reflected by the first reflective layer 40 and the second reflective layer 33 disposed on the back surface 22 and surface 21 of the molded body 20, in a manner that allows light to travel within the light-transmitting polymer, is colored by the first coloring part 50 to become first colored light. A light-guiding path can be formed in this way by the light-transmitting polymer of the molded body 20, the decorative sheet 30, and the first reflective layer 40. For example, no additional light guide plate and reflective layer are needed except for the decorative molded article, and the system for making the decorative molded article 10 shine can be simplified by using the light-emitting device 5.

[0073] (4-2)

[0074] In the decorative molded article 10 of the above embodiment, the decorative piece 30 has a second reflective layer 33, which is formed between the molded body 20 and the concealment layer 32, allowing millimeter waves to pass through and reflecting the first colored light reflected by the first reflective layer 40 towards the first reflective layer 40. The decorative molded article 10 reflects the first colored light from the second reflective layer 33 towards the first reflective layer 40, thereby increasing the amount of the first colored light taken out from the second opening 32a.

[0075] (4-3)

[0076] In the decorative molded article 10 of the above embodiment, the first coloring layer 34 of the decorative sheet 30 is disposed on the surface 21 of the molded body 20 and fixed to the light-transmitting film 31, allowing millimeter waves to pass through and coloring the light incident from the first opening 41 to generate first colored light. In this way, the decorative molded article 10 is simplified to be able to color light through the first coloring layer 34 of the decorative sheet 30.

[0077] (4-4)

[0078] In the manufacturing method of the decorative molded article 10 of the above embodiment, the decorative piece 30 can be used to decorate the surface 21 of the molded body 20 by molding and decorating simultaneously.

[0079] (5) Variations

[0080] (5-1) Variation A

[0081] like Figure 9 As shown, the decorative molded article 10 of the above embodiment may also be provided with a smoke screen portion 33b for the second opening 32a. The smoke screen portion 33b allows millimeter waves to pass through and has a transmittance lower than that of the molded body 20. In this modified example A, the decorative molded article 10 can make the boundary between the second opening 32a and the concealing layer 32 less noticeable by the smoke screen portion 33b, thereby improving its aesthetics.

[0082] (5-2) Variation B

[0083] In the decorative piece 30 of the decorative molded article 10 of Modification A, the second reflective layer 33 can also be configured to close the second opening 32a, thus functioning as a smoke screen. This decorative molded article 10 of Modification B can utilize the smoke screen portion of the second opening 32a as the second reflective layer 33, simplifying the structure of the decorative molded article 10 in which a smoke screen portion is arranged at the second opening 32a.

[0084] (5-3) Variation C

[0085] In the above embodiment, the case where only the first colored light is guided to the same specific region 15 has been described. However, it is also possible to configure the system so that multiple different colors of light can be guided to the same specific region 15. Figure 10 As with the decorative molded article 10 of the modified example C shown, it can also be configured to guide the first coloring light and the second coloring light to the same specific part 15.

[0086] Figure 10 The decorative molded article 10, like the decorative molded article 10 of the above embodiment, includes a molded body 20, a decorative piece 30, and a first reflective layer 40. The decorative molded article 10 of Modification C includes a second coloring portion 51 that generates second colored light. The first coloring portion 50 is a first coloring layer 34 composed of a smoke layer disposed between the second reflective layer 33 of the decorative piece 30 and the molded body 20. In the first reflective layer 40, a first opening 41 is disposed at a position guiding light to the first coloring layer 34. The second coloring portion 51 is a second coloring layer 35 composed of a smoke layer disposed between the second reflective layer 33 of the decorative piece 30 and the molded body 20. In the first reflective layer 40, a third opening 42 is disposed at a position guiding light to the second coloring layer 35. In the decorative piece 30, the concealing layer 32 is configured to allow the second colored light reflected by the first reflective layer 40 to be extracted from the front of the surface 21 of the molded body 20 via the second opening 32a.

[0087] It should be noted that, in Figure 10 In the first reflective layer 40 of the semi-reflective mirror, a first opening 41 and a third opening 42 are provided through a concealment layer 43.

[0088] Here, the case where the first opening 41 and the third opening 42 are covered by the first reflective layer 40 of the semi-reflective mirror is described, but the first reflective layer 40 in the area that partially overlaps with the first opening 41 and the third opening 42 can also be removed.

[0089] For example, when the light-emitting devices 5m and 5n are lit alternately, a specific part 15 of the decorative molded article 10 can be lit alternately with different first and second colored lights.

[0090] (5-4) Variation D

[0091] In the above-described variation C, the case where the second reflective layer 33 is composed of a semi-reflective mirror was explained. However, the second reflective layer 33 can also be configured in other ways. For example, in... Figure 11 In the decorative molded article 10 shown, a second reflective layer 33 is formed from a smoke layer.

[0092] (5-5) Variation E

[0093] The first coloring portion 50 and the second coloring portion 51 in the above-described embodiments and variations are provided in the first coloring layer 34 and the second coloring layer 35 of the decorative piece 30. However, the first coloring portion 50 and the second coloring portion 51 are not limited to the first coloring layer 34 and the second coloring layer 35. For example, they may be provided in the first opening 41 of the first reflective layer 40, or between the first reflective layer 40 and the molded body 20.

[0094] (5-6) Variation F

[0095] In the above embodiments, millimeter waves were exemplified as radio waves that transmit through the decorative molded article 10. However, radio waves that transmit through the decorative molded article are not limited to millimeter waves. The decorative molded article according to the present invention can also, for example, allow radio waves with frequencies lower than millimeter waves to transmit. The decorative molded article can also, for example, allow radio waves used in measuring workshop distances with radio waves with frequencies lower than millimeter waves to transmit. Alternatively, the decorative molded article according to the present invention can also, for example, be a submillimeter wave radio wave.

[0096] (5-7) Variation G

[0097] In the above embodiments, a radar device 2 with transmission and reception functions was described as an example of a wireless device for processing radio waves transmitted through the decorative molded article of the present invention. However, the wireless device for processing radio waves transmitted through the decorative molded article of the present invention is not limited to a radar device with transmission and reception functions. The wireless device may also have only a transmission function or only a reception function. For example, the wireless device may also be an on-board unit of an ETC system (Automatic Toll Collection system) or a receiver with a receiving antenna for a radio wave beacon.

[0098] (5-8) Variation H

[0099] In the above embodiments, the case where the decorative molded article 10 covers a portion of the radar device 2 has been described. However, the decorative molded article 10 of the present invention may also be configured not to cover a portion of the radar device 2. For example, the radar device 2 may be covered by other components, and the decorative molded article 10 may not cover the radar device 2 but may only be disposed at the location where the radar device 2's radio waves pass through.

[0100] (5-9) Variation I

[0101] In the above embodiments, the decorative molded article 10 was described as being positioned at the passage point of radio waves processed by a wireless device such as a radar device 2, and having the function of allowing radio waves to pass through. However, the decorative molded article according to the present invention may also not have the function of allowing radio waves to pass through. Such a decorative molded article may replace the above-described molded body 20 with a molded body that does not allow radio waves to pass through but is shaped into a predetermined shape and contains a light-transmitting polymer that allows light from the light-emitting device 5 to pass through. Such a decorative molded article may also replace the above-described first reflective layer 40 with a first reflective layer that is formed to not allow radio waves to pass through but has a first opening 41 on the back side of the molded body, reflecting light incident from the first opening 41. Such a decorative molded article may also replace the first coloring layer 34 with a first coloring layer that does not allow radio waves to pass through but colors the light incident from the first opening 41 to produce a first colored light. Such a decorative molded article may also replace the light-transmitting film 31 of the decorative sheet 30 with a light-transmitting film that does not allow radio waves to pass through but allows light to pass through. Alternatively, the concealing layer 32 of the decorative piece 30 can be replaced with a concealing layer that prevents radio waves from passing through but is fixed to a light-transmitting film to block the first colored light.

[0102] The present invention has been described above with respect to one embodiment, but the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the invention. In particular, the various embodiments and modifications described in this specification can be arbitrarily combined as needed.

[0103] Explanation of reference numerals in the attached figures

[0104] 10 Decorative Molded Products

[0105] 15 specific parts

[0106] 20 formed body

[0107] 30 decorative pieces

[0108] 31 Light-transmitting film

[0109] 32 concealed layers

[0110] 32a Second opening

[0111] 33 Second reflective layer

[0112] 33b Smoke Screen Section

[0113] 34 First color layer

[0114] 35 Second color layer

[0115] 40 First reflective layer

[0116] 41 First opening

[0117] 42. Third opening.

Claims

1. A decorative molded article through which radio waves processed by at least one of the transmitting and receiving radio waves are transmitted, and a specific portion is illuminated by light emitted from a light-emitting device, the decorative molded article comprising: A molded body, shaped into a specified shape, comprising a light-transmitting polymer that allows radio waves to pass through and allows light from the light-emitting device to pass through; Decorative pieces are simultaneously bonded to the surface of the molded body along with the surface formed thereon; The first reflective layer is formed to have a first opening at a position that does not overlap with the specific portion on the back side of the molded body, reflecting light incident from the first opening and allowing radio waves to pass through; as well as The first coloring section allows radio waves to pass through and colors the light incident from the first opening to produce first colored light. The decorative piece has the following characteristics: A translucent film that allows radio waves and light to pass through; as well as A concealment layer, fixed to the light-transmitting film, allows radio waves to pass through while blocking the first colored light. The concealing layer is configured to have a second opening, which is disposed at the specific location of the light-transmitting film for extracting the first colored light from the front of the shaped body toward the surface.

2. The decorative molded article according to claim 1, wherein, The decorative piece has a second reflective layer formed between the molded body and the concealed layer, allowing radio waves to pass through and reflecting the first colored light reflected by the first reflective layer toward the first reflective layer.

3. The decorative molded article according to claim 1, wherein, The first coloring part is disposed on the surface of the molded body and is the first coloring layer of the decorative sheet. The first coloring layer of the decorative sheet is fixed to the light-transmitting film, allowing radio waves to pass through and coloring the light incident from the first opening to generate first colored light.

4. The decorative molded article according to any one of claims 1 to 3, wherein, The decorative molded article has a second coloring part that generates a second coloring light. The first reflective layer has a third opening, different from the first opening, at the position where light is guided to the second colored portion. The decorative piece is configured such that the concealing layer can extract the second colored light reflected by the first reflective layer from the front of the second opening toward the surface.

5. The decorative molded article according to any one of claims 1 to 3, wherein, A smoke screen portion is provided for the second opening, the smoke screen portion allowing radio waves to pass through and having a transmittance lower than that of the molded body.

6. The decorative molded article according to claim 1, wherein, The decorative piece has a second reflective layer formed between the molded body and the concealing layer, allowing radio waves to pass through and reflecting the first colored light reflected by the first reflective layer towards it. The decorative piece is arranged such that the second opening is closed by the second reflective layer, and the second reflective layer functions as a smoke screen.

7. A decorative molded article, wherein a specific portion is illuminated by light irradiated from a light-emitting device, the decorative molded article comprising: A molded body, shaped into a specified shape, comprising a light-transmitting polymer that allows light from the light-emitting device to pass through; Decorative pieces are simultaneously bonded to the surface of the molded body along with the surface formed thereon; A first reflective layer is formed to have a first opening at a position that does not overlap with the specific portion on the back side of the molded body, and to reflect light incident from the first opening. as well as The first coloring part colors the light incident from the first opening to produce first colored light. The decorative sheet comprises: a light-transmitting film that allows light to pass through; and a shielding layer fixed to the light-transmitting film to block the first colored light. The concealing layer is configured to have a second opening, which is disposed at the specific location of the light-transmitting film for extracting the first colored light from the front of the shaped body toward the surface.

8. A method for manufacturing a decorative molded article, wherein radio waves processed by at least one of a wireless device for transmitting and receiving radio waves are transmitted through the decorative molded article, and a specific portion is illuminated by a light-emitting device, the method comprising: The steps include placing the decorative piece in the mold and closing the mold. The steps include: injecting molten material into the cavity of the mold to form a molded body made of a light-transmitting polymer that allows radio waves to pass through and light from the light-emitting device to pass through; and bonding the decorative piece to the surface of the molded body. as well as The step of forming a first reflective layer having a first opening at a location that does not overlap with the specific portion on the back side of the molded body and allowing radio waves to pass through. The decorative piece has the following characteristics: A translucent film that allows radio waves and light to pass through; A first coloring layer is fixed to the light-transmitting film, allowing radio waves to pass through and coloring the light incident from the first opening to produce first colored light; A concealment layer, fixed to the light-transmitting film, allows radio waves to pass through while blocking the first colored light; as well as A second reflective layer is formed between the shaped body and the shielding layer, allowing radio waves to pass through and reflecting the first colored light reflected by the first reflective layer. The concealing layer is configured to have a second opening, which is disposed at the specific location of the light-transmitting film for extracting the first colored light from the front of the shaped body toward the surface.

9. The method for manufacturing a decorative molded article according to claim 8, wherein, The first reflective layer has a third opening that is different from the first opening. The decorative piece is configured to have a second colored layer that colors light incident from the third opening to produce a second colored light, the second reflective layer being configured to reflect the second colored light toward the first reflective layer, and the concealing layer being able to extract the second colored light toward the front of the surface.

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