Vehicle exterior trim and exterior structure of vehicle

The vehicle exterior part with a cover panel design addressing illumination and appearance issues by minimizing color differences between light-transmitting and non-light-transmitting regions improves the vehicle's aesthetic uniformity.

JP2025111032AActive Publication Date: 2025-07-30TOYODA GOSEI CO LTD
View PDF 7 Cites 0 Cited by

Patent Information

Application Number
JP2024005170
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-01-17
Publication Date
2025-07-30
Estimated Expiration
2044-01-17

AI Technical Summary

Technical Problem

Illuminating grilles and other vehicle exterior parts with transparent and non-transparent portions exhibit significant appearance differences when not illuminated, detracting from the vehicle's overall aesthetic due to varying light reflection and transmission characteristics.

Method used

A vehicle exterior part with a cover panel comprising a base layer, light-shielding and non-light-shielding layers, and a colored layer, where the light-transmitting and non-light-transmitting regions have minimal color difference, allowing uniform illumination and appearance.

Benefits of technology

The solution minimizes the visibility of boundaries between light-transmitting and non-light-transmitting areas, enhancing the vehicle's appearance by ensuring a cohesive look even when not illuminated.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2025111032000001_ABST
    Figure 2025111032000001_ABST
Patent Text Reader

Abstract

To provide a vehicle exterior trim capable of improving appearance of a cover panel, and to provide an exterior structure of vehicle.SOLUTION: A light emitting grill includes: a light source constituted so as to radiate visible light; and a cover panel for covering the light source. The cover panel 17 includes: a base material layer 23 for transmitting visible light; a light shielding layer 30 and a non-light shielding layer 31 arranged on the surface side or the rear surface side of the base material layer 23, and arranged side by side in the surface direction; and a colored layer 27 arranged on the surface side of the light shielding layer 30 and the non-light shielding layer 31. A region which overlaps the non-light shielding layer 31 and is further on the surface side than the non-light shielding layer 31 in the cover panel 17 is made to be a transmitting part 34 which transmits visible light. A region which overlaps the light shielding layer 30 and is further on the surface side than the light shielding layer 30 in the cover panel 17 is made to be a non-transmitting part 35 which does not transmit visible light. In the case where the light source is non-lighting, the color difference ΔE of the appearance between the transmitting part 34 and the non-transmitting part 35 is equal to or less than 5.SELECTED DRAWING: Figure 3
Need to check novelty before this filing date? Find Prior Art

Description

[Technical Field]

[0001] The present invention relates to a vehicle exterior part and a vehicle exterior structure. [Background technology]

[0002] Generally, an illuminating grille is known as a front grille that constitutes an exterior structure of a vehicle (see, for example, Patent Document 1). Such an illuminating grille has a translucent outer cover and a light-emitting element disposed inside the outer cover. The illuminating grille emits light at night when light from the light-emitting element passes through the outer cover. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-35593 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, illuminating grilles are usually not illuminated during the day. When the illuminating grille is not illuminated and external light, such as sunlight, is irradiated, some of the light passes through the outer cover and the rest is reflected by the outer cover. On the other hand, when external light, such as sunlight, is irradiated on the hood adjacent to the illuminating grille, most of the light is reflected. This results in a significant difference between the appearance of the illuminating grille and the appearance of the hood, which detracts from the vehicle's appearance.

[0005] These issues are not limited to vehicle exterior structures, but are also common to vehicle exterior parts that have a non-transparent portion that does not transmit light and a transparent portion that is arranged around the non-transparent portion and transmits light. [Means for solving the problem]

[0006] Various aspects of vehicle exterior parts and vehicle exterior structures for solving the above problems will be described below. [Aspect 1] A vehicle exterior accessory including a light source configured to irradiate visible light and a cover panel that covers the light source, wherein the cover panel has a base layer that transmits the visible light, a light-shielding layer and a non-light-shielding layer that are disposed on either the front or back side of the base layer and are arranged side by side in the surface direction, and a colored layer that is disposed on the front sides of the light-shielding layer and the non-light-shielding layer, wherein a region of the cover panel that overlaps with the non-light-shielding layer and is closer to the front side than the non-light-shielding layer is a light-transmitting portion that transmits the visible light, and a region of the cover panel that overlaps with the light-shielding layer and is closer to the front side than the light-shielding layer is a non-light-transmitting portion that does not transmit the visible light, and wherein when the light source is not lit, the color difference ΔE in appearance between the light-transmitting portion and the non-light-transmitting portion is 5 or less.

[0007] According to the above configuration, when the light source is turned on, visible light from the light source passes through the light-transmitting portions of the cover panel but does not pass through the non-light-transmitting portions of the cover panel, so that only the light-transmitting portions of the cover panel can be illuminated by the visible light from the light source. On the other hand, when the light source is not turned on, the color difference ΔE between the appearance of the non-light-transmitting portions and the light-transmitting portions of the cover panel is 5 or less, so the boundary between the non-light-transmitting portions and the light-transmitting portions is less noticeable. This improves the appearance of the cover panel.

[0008] [Aspect 2] The vehicle exterior part according to [Aspect 1], wherein the light source is one that emits white visible light, and the visible light transmittance of the area of the cover panel that includes the non-light-shielding layer and overlaps with the non-light-shielding layer is in the range of 5% to 70%.

[0009] According to the above configuration, the light-transmitting portion can emit white visible light. [Aspect 3] The vehicle exterior part according to [Aspect 1] or [Aspect 2], wherein the colored layer has the same configuration in the translucent portion and the non-translucent portion.

[0010] According to the above configuration, the cover panel can be manufactured more easily than when the colored layer has different configurations in the light-transmitting portion and the non-light-transmitting portion. [Aspect 4] A vehicle exterior part according to any one of [Aspect 1] to [Aspect 3], characterized in that a non-colored portion where the colored layer is not present is provided in a part of the translucent portion.

[0011] According to the above configuration, by arranging the non-colored portion in a position facing the vehicle's turn lamps (directional indicator lights) or DRLs (Daytime Running Lamps), the luminous intensity of visible light from the turn lamps or DRLs that passes through the translucent portion can be increased.

[0012] [Aspect 5] The vehicle exterior part according to [Aspect 4], wherein the non-light-shielding layer is a light-shielding layer having a plurality of pores formed therein. According to the above configuration, the non-light-shielding layer can make the base material layer less visible from the outside through the non-colored portion of the light-transmitting portion of the cover panel.

[0013] [Aspect 6] The vehicle exterior part according to any one of [Aspect 1] to [Aspect 5], wherein the cover panel has an electromagnetic wave transmitting portion that transmits electromagnetic waves. According to the above configuration, the cover panel can be used as an electromagnetic wave transmission cover for covering, for example, a millimeter wave sensor.

[0014] [Embodiment 7] [Embodiment 1] to [Embodiment 6] are used as a first exterior part, and the vehicle exterior structure comprises the first exterior part and a second exterior part that is arranged around the first exterior part, and the second exterior part has a colored layer that has the same configuration as the colored layer of the first exterior part.

[0015] According to the above configuration, the first exterior accessory and the second exterior accessory have the same exterior color, which gives the first exterior accessory and the second exterior accessory a sense of unity in their appearance, thereby contributing to improving the appearance of the vehicle. [Effects of the Invention]

[0016] The present invention has the effect of being able to improve the appearance of the cover panel.

Brief Explanation of Drawings

[0017]

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Fig. 9

Fig. 10

Modes for Carrying Out the Invention

[0018] (First Embodiment) Hereinafter, the first embodiment will be described with reference to the drawings. <Configuration of Vehicle 11> As shown in FIG. 1, at the front part of the vehicle 11, a pair of left and right headlamps 12, a light-emitting grille 13 as an example of a first exterior part which is an exterior part for a vehicle, and a front bumper 14 as an example of a second exterior part are provided. The headlamp 12 is arranged at the upper part in the front part of the vehicle 11. The front bumper 14 is arranged at the lower part in the front part of the vehicle 11.

[0019] The light-emitting grille 13 is disposed adjacent to the upper side of the front bumper 14 at the front of the vehicle 11. That is, the front bumper 14 is disposed around the light-emitting grille 13. The light-emitting grille 13 is disposed so as to occupy most of the area excluding the headlight 12 above the front bumper 14 at the front of the vehicle 11. Note that the light-emitting grille 13 and the front bumper 14 in the present embodiment constitute the exterior structure of the vehicle 11.

[0020] As shown in FIGS. 1 and 2, a millimeter-wave sensor 15 is disposed at a position on the rear side of the central portion of the light-emitting grille 13 at the front of the vehicle 11. The millimeter-wave sensor 15 transmits millimeter waves, which are among electromagnetic waves, forward of the vehicle 11, and receives millimeter waves reflected by hitting an object outside the vehicle including a preceding vehicle and a pedestrian.

[0021] The millimeter-wave sensor 15 recognizes the object outside the vehicle based on the transmitted and received millimeter waves, and detects the distance, relative speed, etc. between the vehicle 11 and the object. Millimeter waves refer to radio waves having a wavelength of 1 mm to 10 mm and a frequency of 30 GHz to 300 GHz. The millimeter-wave sensor 15 is resistant to bad weather such as rain, fog, and snow, and has a feature that the detectable distance is longer compared with an infrared sensor.

[0022] <Light-emitting grille 13> As shown in FIGS. 1 and 2, the light-emitting grille 13 has a bottomed box-shaped case 16 with an open front end, and a cover panel 17 that closes the opening of the case 16. A light source 18 configured to be able to irradiate visible light is provided on the bottom surface inside the case 16 so as to face the cover panel 17 in the front-rear direction. Therefore, the cover panel 17 covers the light source 18 from the front side. The light source 18 in the present embodiment is configured by an LED (Light Emitting Diode) that irradiates white visible light as an example.

[0023] The light source 18 includes a decorative lamp 19, a pair of left and right DRLs 20 (Daytime Running Lamps), a pair of left and right turn lamps 21 (direction indicator lamps), and a pair of left and right position lamps 22 (width lamps). The case 16 is made of a synthetic resin such as polycarbonate (PC) or polypropylene (PP), for example.

[0024] <Cover panel 17> As shown in FIG. 3, the cover panel 17 is composed of a plurality of layers laminated in the front-rear direction. Each layer constituting the cover panel 17 has a front surface as the front face and a back surface as the rear face.

[0025] The cover panel 17 includes a base material layer 23, an adhesive layer 24 provided on the front surface of the base material layer 23, a light adjustment layer 25 provided on the front surface of the adhesive layer 24, a first complementary color layer 26 provided on the front surface of the light adjustment layer 25, a coloring layer 27 provided on the front surface of the first complementary color layer 26, a protective layer 28 provided on the front surface of the coloring layer 27, and an anti-fog layer 29 provided on the back surface of the base material layer 23.

[0026] The base material layer 23 is made of a synthetic resin that transmits visible light. That is, the base material layer 23 is made of, for example, polycarbonate (PC) or polypropylene (PP). The adhesive layer 24 is transparent so as to transmit visible light. The adhesive layer 24 is composed of, for example, a primer, an adhesive, a buffer layer, etc. The light adjustment layer 25 has a light-shielding layer 30 that blocks visible light and a non-light-shielding layer 31 that does not block visible light.

[0027] That is, the light adjustment layer 25 is configured such that the light-shielding layer 30 and the non-light-shielding layer 31 are arranged side by side in the plane direction. The light-shielding layer 30 is composed of a coating film that does not transmit visible light, that is, a black coating film, for example. The non-light-shielding layer 31 is composed of the region (space) in the light adjustment layer 25 where the light-shielding layer 30 does not exist. Therefore, since the non-light-shielding layer 31 has no physical entity, it transmits visible light.

[0028] The first complementary color layer 26 has the function of adjusting the light emission state of visible light irradiated from the light source 18 at night, and adjusting the color development state of the exterior of the cover panel 17 during the day when visible light is not irradiated from the light source 18. The colored layer 27 is formed of a coating film that transmits visible light. That is, the colored layer 27 has a two-layer structure, for example, including a color clear layer 32 and a color pearl layer 33 laminated on the back surface of the color clear layer 32.

[0029] The color clear layer 32 is formed of a coating film with a so-called transparency. The color pearl layer 33 is formed of a coating film containing a pearl pigment, for example, titanium dioxide or mica coated with a metal oxide. The protective layer 28 has the function of protecting the colored layer 27 from scratches. The protective layer 28 is formed of, for example, a transparent clear coating film or a transparent hard coat layer. The anti-fogging layer 29 has the function of suppressing fogging.

[0030] The area of the cover panel 17 that overlaps with the non-light-shielding layer 31 in the front-to-rear direction and is in front of the non-light-shielding layer 31 is a light-transmitting section 34 that transmits visible light from the light source 18. The area of the cover panel 17 that overlaps with the light-shielding layer 30 in the front-to-rear direction and is in front of the light-shielding layer 30 is a non-light-transmitting section 35 that does not transmit visible light from the light source 18.

[0031] 1 to 3, the cover panel 17 is provided with a light-transmitting portion 34 in an area facing the light source 18 in the front-rear direction. That is, the cover panel 17 is provided with the light-transmitting portion 34 in an area facing the decorative lamp 19, the pair of left and right DRLs 20, the pair of left and right turn lamps 21, and the pair of left and right position lamps 22 in the front-rear direction. In this case, the light-transmitting portion 34 provided in the area of the cover panel 17 facing the decorative lamp 19 in the front-rear direction has a shape that represents the letters "TG," as an example.

[0032] The cover panel 17 includes a non-light-shielding layer 31, and the transmittance of visible light from the light source 18 in a region that overlaps with the non-light-shielding layer 31 in the front-rear direction is set to be in the range of 5% or more and 70% or less. All regions other than the light-transmitting portion 34 in the appearance of the cover panel 17 are non-light-transmitting portions 35.

[0033] The coloring layer 27 in the cover panel 17 has the same configuration in the light-transmitting portion 34 and the non-light-transmitting portion 35. That is, the same paint is used for the coloring layer 27 in the light-transmitting portion 34 and the non-light-transmitting portion 35 of the cover panel 17. The light-emitting grill 13 is configured such that when the light source 18 is not lit, the color difference ΔE in appearance between the light-transmitting portion 34 and the non-light-transmitting portion 35 in the cover panel 17 is 5 or less.

[0034] The cover panel 17 has an electromagnetic wave transmission portion 36 that transmits electromagnetic waves. The electromagnetic wave transmission portion 36 in the cover panel 17 is more easily permeated by electromagnetic waves than the portions other than the electromagnetic wave transmission portion 36 in the cover panel 17. The electromagnetic wave transmission portion 36 of the present embodiment is adjusted on the rear surface (back surface) of the base material layer 23 so that the thickness of the base material layer 23 is optimized according to the wavelength of the electromagnetic waves transmitted through the base material layer 23. Examples of the adjustment on the rear surface of the base material layer 23 include forming a concave portion on the rear surface of the base material layer 23 that is recessed more than the portions other than the electromagnetic wave transmission portion 36.

[0035] The electromagnetic wave transmission portion 36 in the cover panel 17 is disposed in a region that faces the millimeter-wave sensor 15 in the front-rear direction. It is preferable that the attenuation rate of the millimeter wave in the round-trip of the electromagnetic wave transmission portion 36 in the cover panel 17 is 3.0 dB or less. If the attenuation rate of the millimeter wave in the round-trip of the electromagnetic wave transmission portion 36 exceeds 3.0 dB, the detection accuracy of the millimeter-wave sensor 15 may be insufficient.

[0036] 1, 2, and 4, in an area of the cover panel 17 facing the pair of left and right turn lamps 21 in the front-rear direction, a second complementary color layer 37 is disposed between the base material layer 23 and the anti-fogging layer 29. The second complementary color layer 37 has the function of adjusting the color of visible light emitted from the turn lamps 21 (light source 18) to a yellow-orange color (amber color).

[0037] 1 and 5, the front bumper 14 adjacent to the light-emitting grille 13 has a resin base material 38, a colored layer 27 provided on the front surface of the resin base material 38, and a protective layer 28 provided on the front surface of the colored layer 27. In other words, the front bumper 14 has a colored layer 27 with the same configuration as the colored layer 27 of the cover panel 17 of the light-emitting grille 13.

[0038] <Operation of the First Embodiment> When the vehicle 11 is traveling at night, the decorative lamps 19 are usually turned on. When this happens, visible light is irradiated from the decorative lamps 19 onto the light-transmitting portions 34 representing the letters "TG" on the cover panel 17, and the visible light that passes through the light-transmitting portions 34 causes the letters "TG" to be illuminated in white.

[0039] Similarly, by turning on the pair of left and right DRLs 20 and the pair of left and right position lamps 22, the translucent portion 34 of the cover panel 17 opposite them will emit white light due to the visible light irradiated from the pair of left and right DRLs 20 and the pair of left and right position lamps 22, respectively.

[0040] Furthermore, by selectively turning on a pair of left and right turn lamps 21 as needed, the translucent portion 34 of the cover panel 17 facing the selected turn lamp 21 will glow yellow-orange due to the visible light irradiated from the selected turn lamp 21.

[0041] On the other hand, when the vehicle 11 is traveling during the daytime, only the pair of left and right DRLs 20 are normally turned on. That is, when the vehicle 11 is traveling during the daytime, the light sources 18 other than the pair of left and right DRLs 20 are not turned on, and the vehicle 11 is in an unlit state. In this state, the cover panel 17 is configured so that the color difference ΔE in appearance between the light-transmitting portion 34 facing the unlit light source 18 and the non-light-transmitting portion 35 is 5 or less.

[0042] This makes it difficult to notice the boundary between the light-transmitting portion 34 and the non-light-transmitting portion 35 in the cover panel 17. This improves the appearance of the cover panel 17, and ultimately improves the appearance of the vehicle 11.

[0043] Furthermore, millimeter waves (electromagnetic waves) transmitted and received by the millimeter-wave sensor 15 pass through the electromagnetic wave transmitting portion 36 of the cover panel 17. In this case, the electromagnetic wave transmitting portion 36 of the cover panel 17 has an attenuation rate of 3.0 dB or less for the millimeter waves traveling back and forth. This ensures sufficient detection accuracy for the millimeter-wave sensor 15. Therefore, the cover panel 17 functions suitably as an electromagnetic wave transmitting cover.

[0044] <Effects of the first embodiment> According to the first embodiment described above in detail, the following effects are achieved. (1-1) The light-emitting grille 13 includes a light source 18 configured to be able to emit visible light and a cover panel 17 covering the light source 18. The cover panel 17 includes a base layer 23 that transmits visible light, a light-shielding layer 30 and a non-light-shielding layer 31 that are disposed on the surface side of the base layer 23 and are arranged side by side in the surface direction, and a colored layer 27 that is disposed on the surface side of the light-shielding layer 30 and the non-light-shielding layer 31. A region of the cover panel 17 that overlaps with the non-light-shielding layer 31 and is closer to the surface than the non-light-shielding layer 31 is a light-transmitting portion 34 that transmits visible light. A region of the cover panel 17 that overlaps with the light-shielding layer 30 and is closer to the surface than the light-shielding layer 30 is a non-light-transmitting portion 35 that does not transmit visible light. When the light source 18 is not lit, the color difference ΔE in appearance between the light-transmitting portion 34 and the non-light-transmitting portion 35 is 5 or less.

[0045] According to the above configuration, when the light source 18 is lit, the visible light from the light source 18 passes through the light-transmitting portion 34 of the cover panel 17 but does not pass through the non-light-transmitting portion 35 of the cover panel 17. Therefore, only the light-transmitting portion 34 of the cover panel 17 can be made to emit light by the visible light from the light source 18. On the other hand, in the non-lit state where the light source 18 is not lit, since the color difference ΔE in appearance between the non-light-transmitting portion 35 and the light-transmitting portion 34 of the cover panel 17 is 5 or less, the boundary between the non-light-transmitting portion 35 and the light-transmitting portion 34 becomes less conspicuous. For this reason, the appearance of the cover panel 17 can be improved.

[0046] (1-2) As the light source 18 of the light-emitting grill 13, one that irradiates white visible light is used. The transmittance of visible light in the light-transmitting portion 34 is in the range of 5% or more and 70% or less. According to the above configuration, the light-transmitting portion 34 can be suitably made to emit light with white visible light.

[0047] (1-3) In the light-emitting grill 13, the colored layer 27 has the same configuration in the light-transmitting portion 34 and the non-light-transmitting portion 35. According to the above configuration, the cover panel 17 can be easily manufactured as compared with the case where the configuration of the colored layer 27 is different between the light-transmitting portion 34 and the non-light-transmitting portion 35.

[0048] (1-4) In the light-emitting grill 13, the cover panel 17 has an electromagnetic wave transmitting portion 36 that transmits electromagnetic waves. According to the above configuration, the cover panel 17 can be used as an electromagnetic wave transmitting cover that covers the millimeter-wave sensor 15.

[0049] (1-5) The exterior structure of the vehicle 11 includes the light-emitting grill 13 and a front bumper 14 disposed around the light-emitting grill 13. The front bumper 14 has a colored layer 27 having the same configuration as the colored layer 27 of the light-emitting grill 13.

[0050] According to the above configuration, since the color tones of the appearances of the light-emitting grill 13 and the front bumper 14 are the same, a sense of unity can be given to the appearances of the light-emitting grill 13 and the front bumper 14. For this reason, it can contribute to the improvement of the appearance of the vehicle 11.

[0051] (Second Embodiment) Next, the second embodiment will be described with reference to the drawings. This second embodiment is obtained by changing the cover panel 17 shown in FIG. 3 in the first embodiment to the cover panel 50 shown in FIG. 6. As shown in FIGS. 3 and 6, the cover panel 50 is formed by arranging each layer other than the protective layer 28 on the rear surface side of the base material layer 23 in the cover panel 17 of the first embodiment. In the second embodiment, only the points different from the first embodiment will be described, and the description overlapping with the first embodiment will be omitted. Also, in the second embodiment, the same members as those in the first embodiment will be denoted by the same reference numerals.

[0052] <Cover Panel 50> As shown in FIG. 6, the cover panel 50 includes a base material layer 23, a protective layer 28 provided on the front surface of the base material layer 23, an adhesive layer 24 provided on the rear surface of the base material layer 23, a coloring layer 27 provided on the rear surface of the adhesive layer 24, a first complementary color layer 26 provided on the rear surface of the coloring layer 27, a light adjustment layer 25 provided on the rear surface of the first complementary color layer 26, and an anti-fog layer 29 provided on the rear surface of the light adjustment layer 25.

[0053] <Method for Manufacturing Cover Panel 50> As shown in FIG. 7, when manufacturing the cover panel 50, first, the protective layer 28 is provided on the front surface of the base material layer 23. Subsequently, the adhesive layer 24, the coloring layer 27, and the first complementary color layer 26 are sequentially laminated and provided on the rear surface of the base material layer 23. Subsequently, a light shielding layer 30 is provided on the entire rear surface of the first complementary color layer 26. Subsequently, a non-light shielding layer 31 is formed in a region of the light shielding layer 30 that faces the light source 18 in the front-rear direction to form a light-transmitting portion 34. Thereby, the light adjustment layer 25 having the light shielding layer 30 and the non-light shielding layer 31 is provided on the rear surface of the first complementary color layer 26.

[0054] In this case, the non-light-shielding layer 31 is formed, for example, by performing laser etching in which the light-shielding layer 30 is irradiated with laser light from the rear side by a laser irradiation device 51 to partially remove the light-shielding layer 30. Thereafter, an anti-fogging layer 29 is provided on the rear surface of the light adjustment layer 25, whereby the cover panel 50 shown in FIG. 6 is manufactured.

[0055] <Effects of the Second Embodiment> According to the second embodiment described in detail above, in addition to the effects described in the above (1-1) to the above (1-5), the following effects are exhibited.

[0056] (2-1) In the cover panel 50, the non-light-shielding layer 31 can be formed by partially removing the light-shielding layer 30 from the rear side, for example, by laser etching. Therefore, the light adjustment layer 25 can be easily formed, and thus the cover panel 50 can be easily manufactured.

[0057] <Modification Example> Each of the above embodiments can be implemented with the following modifications. Also, the above embodiments and the following modification examples can be implemented in combination with each other within a range where there is no technical contradiction.

[0058] · As shown in FIG. 8, in the cover panel 17, a film substrate 39 that transmits visible light may be provided between the protective layer 28 and the colored layer 27. In this case, the protective layer 28, the film substrate 39, the colored layer 27, the first complementary color layer 26, and the light adjustment layer 25 are integrally formed as a laminated unit A. In this way, the cover panel 17 can be easily manufactured by adhering the laminated unit A to the substrate layer 23 via the adhesive layer 24. Note that the film substrate 39 is composed of, for example, polymethyl methacrylate resin (PMMA) or polycarbonate (PC).

[0059] · As shown in FIG. 9, a non-colored portion 40 without the colored layer 27 may be provided in a part of the light-transmitting portion 34 in the cover panel 17. In this case, the portion corresponding to the non-colored portion 40 in the first complementary color layer 26 is omitted. In this way, by providing the non-colored portion 40 in the light-transmitting portion 34 of the cover panel 17 facing the turn lamp 21 or the DRL 20, the luminous intensity of the visible light from the turn lamp 21 or the DRL 20 transmitted through the light-transmitting portion 34 can be increased.

[0060] · As shown in FIG. 10, in the cover panel 17 of FIG. 9 above, the non-light-shielding layer 31 may be constituted by forming a plurality of pores in the light-shielding layer 30. That is, the non-light-shielding layer 31 may be constituted by a body in which a plurality of pores penetrating in the front-rear direction are formed in the light-shielding layer 30. In this way, while ensuring visible light transmittance by the plurality of pores in the non-light-shielding layer 31, the substrate layer 23 can be made difficult to be seen from the outside through the non-colored portion 40 of the light-transmitting portion 34 of the cover panel 17 by the portion other than the pores in the non-light-shielding layer 31.

[0061] · The front bumper 14 does not necessarily have to have the colored layer 27 with the same configuration as the colored layer 27 of the light-emitting grill 13. · The cover panel 17 does not necessarily have to have the electromagnetic wave transmission portion 36.

[0062] · In the light-emitting grill 13, the colored layer 27 does not necessarily have to have the same configuration in the light-transmitting portion 34 and the non-light-transmitting portion 35. · The light-emitting grill 13 does not necessarily have to use a light source 18 that irradiates the white visible light.

[0063] · The transmittance of the visible light in the light-transmitting portion 34 of the light-emitting grill 13 does not necessarily have to be in the range of 5% or more and 70% or less. · The second complementary color layer 37 may be omitted, and the turn lamp 21 itself may color the visible light so that the visible light irradiated from the turn lamp 21 and transmitted through the light-transmitting portion 34 of the cover panel 17 becomes yellow (amber).

[0064] · Instead of the color pearl layer 33, the coloring layer 27 may use a metallic coating layer containing aluminum flakes or a solid coating layer not containing aluminum flakes and pearl pigments, or may use a coating layer of the same color as the exterior parts such as the bumper cover and fender panel of the vehicle 11.

[0065] · The coloring layer 27 may have a single-layer structure or a structure of three or more layers. · In the cover panel 17, the anti-fogging layer 29 may be omitted. · In the cover panel 17, the adhesive layer 24 may be omitted.

[0066] · In the cover panel 17, the first complementary color layer 26 may be omitted. · In the cover panel 17, the protective layer 28 may be omitted. · The electromagnetic wave transmission part 36 in the cover panel 17 may be configured such that the thickness of the color pearl layer 33 constituting the coloring layer 27 is thinner than that of the part other than the electromagnetic wave transmission part 36 in the cover panel 17. In this case, since the color pearl layer 33 is composed of a coating film containing pearl pigments that inhibit the transmission of electromagnetic waves, the thinner the thickness, the easier it is for electromagnetic waves to pass through.

[0067] · Instead of the millimeter-wave sensor 15, an infrared sensor may be arranged on the rear side of the light-emitting grill 13, or an infrared sensor may be arranged in addition to the millimeter-wave sensor 15. The infrared sensor transmits infrared rays (near-infrared rays) having a wavelength of 900 nm or more and 2000 nm or less among electromagnetic waves toward the front of the vehicle 11, and receives the infrared rays reflected by hitting an object outside the vehicle including a preceding vehicle and a pedestrian. The infrared sensor recognizes the object outside the vehicle based on the transmitted and received infrared rays, and detects the distance and relative speed between the vehicle 11 and the object. The infrared sensor has a feature that it can detect an object smaller than the object that the millimeter-wave sensor 15 can detect.

[0068] · The vehicle exterior part (the first exterior part) may be a vehicle exterior part other than the light-emitting grill 13. The second exterior part may be, for example, a fender panel of the vehicle 11. [Explanation of symbols]

[0069] 11...Vehicle 12...Headlight 13...Illuminating grille as an example of a first exterior part that is an exterior part for a vehicle 14...Front bumper as an example of a second exterior part 15...Millimeter wave sensor 16…Case 17,50…Cover panel 18...Light source 19...Decorative lamp 20…DRL 21...Turn lamp 22...Position lamp 23...Base material layer 24...adhesive layer 25...Light adjustment layer 26...First complementary color layer 27...Colored layer 28…Protective layer 29...Anti-fog layer 30...Light blocking layer 31...Non-shading layer 32...Color clear layer 33...Color pearl layer 34…Translucent part 35…Non-transparent part 36...Electromagnetic wave transmission part 37...Second complementary color layer 38...Resin substrate 39...Film substrate 40...Uncolored area 51...Laser irradiation device A...Stacked unit

Claims

1. An exterior part for a vehicle, comprising a light source configured to irradiate visible light and a cover panel covering the light source, wherein the cover panel has a base material layer that transmits the visible light, a light-shielding layer and a non-light-shielding layer that are arranged on the front or back surface side of the base material layer and arranged side by side in the plane direction, and a colored layer arranged on the front surface side of the light-shielding layer and the non-light-shielding layer, a region of the cover panel that overlaps with the non-light-shielding layer and is on the front surface side of the non-light-shielding layer is a light-transmitting portion that transmits the visible light, a region of the cover panel that overlaps with the light-shielding layer and is on the front surface side of the light-shielding layer is a non-light-transmitting portion that does not transmit the visible light, and when the light source is not lit, the color difference ΔE in appearance between the light-transmitting portion and the non-light-transmitting portion is 5 or less. The exterior part for a vehicle is characterized by this.

2. A white visible light irradiating light source is used, and the visible light transmittance of a region of the cover panel that includes the non-light-shielding layer and overlaps with the non-light-shielding layer is in the range of 5% or more and 70% or less. The exterior part for a vehicle according to claim 1 is characterized by this.

3. The colored layer has the same configuration in the light-transmitting portion and the non-light-transmitting portion. The exterior part for a vehicle according to claim 1 or claim 2 is characterized by this.

4. A non-colored portion where the colored layer does not exist is provided in a part of the light-transmitting portion. The exterior part for a vehicle according to claim 1 or claim 2 is characterized by this.

5. The non-light-shielding layer is formed by forming a plurality of pores in the light-shielding layer. The exterior part for a vehicle according to claim 4 is characterized by this.

6. The cover panel has an electromagnetic wave transmitting portion that transmits electromagnetic waves. The exterior part for a vehicle according to claim 1 or claim 2 is characterized by this.

7. When the exterior part for a vehicle according to claim 1 or claim 2 is used as a first exterior part, it includes the first exterior part and a second exterior part arranged around the first exterior part, and the second exterior part has a colored layer having the same configuration as the colored layer of the first exterior part. The exterior structure of a vehicle is characterized by this.

Citation Information

Patent Citations

  • Decorated molding capable of being backlighted and decorated thin product

    JP2001347539A

  • Exterior component structure

    JP2012210861A

  • Decorative sheet, and decorative resin molded product

    JP2013014050A

  • Vehicular lighting fixture and rear panel of vehicle

    JP2014175199A

  • Decorative component for vehicle and lining for vehicle

    JP2014231310A