Vehicle exterior component

Abstract

To provide a vehicle exterior component that can enhance a sense of unity in appearance between an exterior component and an exterior member arranged around the exterior component while enhancing a snow melting function.SOLUTION: There is provided a vehicle exterior component. A first exterior member corresponds to the vehicle exterior component according to the present invention. A first exterior member 11 has a plate-shaped base material 20 made of resin material, and a heater sheet 40 laminated on a front surface 20a of the base material 20. The heater sheet 40 has a first sheet base material 41 made of resin that is joined to the front surface 20a, and a heater wire 43 that is wired along the first sheet base material 41 and generates heat when electricity is applied. A colored layer 30 formed of paint containing a color pigment is provided on an opposite side of the base material 20 across the first sheet base material 41 in a front-rear direction L.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to exterior parts for vehicles.

Background Art

[0002] Patent Document 1 describes a radome disposed in front of an in-vehicle radar device. The radome includes a resin base material, a resin transparent base material disposed in front of the base material and constituting the design surface of the radome, and a resin rear base material disposed behind the base material and facing the in-vehicle radar device.

[0003] A decorative layer having a metallic luster is provided between the base material and the transparent base material. A planar heating element in which a heater wire is fixed to an insulating film is provided between the base material and the rear base material. In such a radome, the decorative layer imparts a glittering property, and the planar heating element imparts a snow melting function.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, exterior members such as bumpers and grilles are arranged around such a radome. Such exterior members are provided with a colored layer such as a coating film on the outermost surface. For this reason, the appearance differs between the radome provided with the transparent base material on the outermost surface and the exterior members arranged around the radome. Therefore, there is room for improvement in enhancing the unity of appearance between the exterior parts such as the radome and the exterior members arranged around the exterior parts.

Means for Solving the Problems

[0006] Each aspect of the vehicle exterior component for solving the above problems will be described. [Aspect 1] A vehicle exterior component having a plate-shaped base material formed of a resin material and a heater sheet laminated on one end surface in the thickness direction of the base material, wherein the one end surface constitutes the surface on the design surface side of the vehicle exterior component, and the heater sheet includes a resin sheet base material joined to the one end surface and a heater wire wired along the sheet base material and generating heat when energized. On the side opposite to the base material with the sheet base material sandwiched therebetween in the thickness direction, a colored layer formed of a resin material in which a colorant is dispersed or a paint containing a colored pigment is provided.

[0007] According to the above configuration, a colored layer formed of a resin material in which a colorant is dispersed or a paint containing a colored pigment is disposed on the outermost surface of the exterior component. Therefore, the exterior component has the above colored layer on its outermost surface, similar to other general exterior members disposed around the exterior component. Thereby, by matching the color of the colored layer with the color of the colored layer of the surrounding exterior members, the unity of appearance between the exterior component and the surrounding exterior members can be enhanced.

[0008] Also, according to the above configuration, the heater sheet is laminated on one end surface of the base material. Therefore, compared with the case where the heater sheet is laminated on the other end surface of the base material, the heater sheet is disposed at a position closer to the design surface of the exterior component in the thickness direction. Thereby, the Joule heat of the heater sheet is likely to be transmitted to the design surface of the exterior component, so that the ice and snow adhering to the design surface can be efficiently melted. Moreover, since the heater sheet is covered by the above colored layer, the design property of the exterior component is not impaired by the visibility of the heater sheet.

[0009] Therefore, while enhancing the snow melting function, the unity of appearance between the exterior component and the exterior members disposed around the exterior component can be enhanced. [Aspect 2] The vehicle exterior component according to [Aspect 1], wherein the base material has visible light transmittance and constitutes the surface on the side opposite to the design surface of the vehicle exterior component.

[0010] According to the above configuration, since the base material has visible light transmittance, the heater wires of the heater sheet can be visually recognized from the surface on the side opposite to the design surface of the exterior part. Therefore, the inspection of the heater wires can be easily performed.

[0011] [Aspect 3] When the sheet base material is the first sheet base material, a second sheet base material formed of a resin material having higher weather resistance than the resin material forming the first sheet base material is provided between the first sheet base material and the colored layer in the thickness direction, for the vehicle exterior part according to [Aspect 2].

[0012] According to the above configuration, the second sheet base material can suppress the first sheet base material and the base material from being modified by external factors such as sunlight. In particular, when a polycarbonate resin is selected as the resin material forming the first sheet base material and the base material, the first sheet base material and the base material are likely to turn yellow due to ultraviolet rays. In this regard, according to the above configuration, the second sheet base material can suppress the yellowing of the first sheet base material and the base material.

[0013] [Aspect 4] The colored layer is formed of a resin material having higher weather resistance than the resin material forming the sheet base material, while the colorant is dispersed, for the vehicle exterior part according to [Aspect 2].

[0014] According to the above configuration, the colored layer imparts high weather resistance to the heater sheet. Therefore, compared with the case where a resin layer formed of a resin material having higher weather resistance than the sheet base material is separately provided between the colored layer and the sheet base material, the layer configuration of the heater sheet can be simplified. Therefore, high weather resistance can be imparted to the heater sheet with a simple configuration.

[0015] [Aspect 5] The vehicle exterior part according to any one of [Aspect 1] to [Aspect 4], which has millimeter wave transmittance. In the transmission direction of the millimeter wave emitted from the radar device, in the vehicle exterior parts arranged in front of the radar device, when ice and snow adhere to the design surface, the millimeter wave transmitted through the exterior parts is attenuated by the ice and snow, so there is a risk of degrading the detection function of the radar device.

[0016] In this regard, according to the above configuration, when the present invention is applied to the above-described exterior parts, the joule heat of the heater sheet is likely to be transmitted to the design surface of the exterior parts, so that the ice and snow adhering to the design surface can be efficiently melted. Therefore, it is possible to suppress the attenuation of the millimeter wave caused by the adhesion of ice and snow.

[0017] [Aspect 6] A vehicle exterior part having a plate-shaped base material formed of a resin material and a heater sheet laminated on one end surface in the thickness direction of the base material, wherein the one end surface constitutes a surface on the design surface side of the vehicle exterior part, and the heater sheet includes a resin sheet base material joined to the one end surface, and a heater wire wired on the one end surface side of the sheet base material and generating heat when energized, and a coloring agent is dispersed in the sheet base material.

[0018] According to the above configuration, the resin sheet base material in which the coloring agent is dispersed is disposed on the outermost surface of the exterior part. Thereby, by matching the color of the sheet base material with the color of the coloring layer of other general exterior members arranged around the exterior part, the unity of the appearance between the exterior part and the surrounding exterior members can be enhanced.

[0019] Further, according to the above configuration, the heater sheet is laminated on one end surface of the base material. Therefore, compared with the case where the heater sheet is laminated on the other end surface of the base material, the heater sheet is disposed at a position closer to the design surface of the exterior part in the thickness direction. Thereby, the joule heat of the heater sheet is likely to be transmitted to the design surface of the exterior part, so that the ice and snow adhering to the design surface can be efficiently melted. Moreover, since the heater wire is covered with the sheet base material in which the coloring agent is dispersed, the design property of the exterior part is not impaired by the visual recognition of the heater wire.

[0020] Therefore, while enhancing the snow melting function, it is possible to enhance the unity of the appearance between the exterior part and the exterior members arranged around the exterior part.

Effects of the Invention

[0021] According to the present invention, while enhancing the snow melting function, it is possible to enhance the unity of the appearance between the exterior part and the exterior members arranged around the exterior part.

Brief Description of the Drawings

[0022]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Modes for Carrying Out the Invention

[0023] Hereinafter, with reference to FIGS. 1 to 4, each embodiment of the exterior part for a vehicle will be described. In the following, the front-rear direction of the vehicle will be simply referred to as the front-rear direction L, and the front and rear in the front-rear direction L will be simply described as the front and the rear. Also, the width direction of the vehicle will be simply described as the vehicle width direction W.

[0024] <First Embodiment> First, with reference to FIGS. 1 to 3, the first embodiment of the exterior part for a vehicle will be described. (Front portion 10A of vehicle 10) As shown in FIGS. 1 and 2, in the front portion 10A of the vehicle 10, a first exterior member 11 and a second exterior member 12 that form a part of the outer shell of the vehicle 10 are provided.

[0025] The first exterior member 11 forms the central portion in the vehicle width direction W of the front part 10A in a front view. Note that the first exterior member 11 corresponds to the vehicle exterior part according to the present invention. The second exterior member 12 is, for example, what is called a front bumper, and forms the peripheral portion of the first exterior member 11 in the front part 10A in a front view. The second exterior member 12 is provided such that the design surface 12a and the design surface 11a of the first exterior member 11 are flush.

[0026] As shown in FIG. 3, behind the first exterior member 11, a radar device 15 is disposed as an in-vehicle sensor that transmits and receives electromagnetic waves for detecting an object outside the vehicle. In the present embodiment, the radar device 15 transmits electromagnetic waves having a wavelength of 1 mm to 10 mm and a frequency of 30 GHz to 300 GHz, so-called millimeter waves.

[0027] (The first exterior member 11) As shown in FIG. 3, the first exterior member 11 has a base material 20 formed of a resin material and a coloring layer 30 disposed in front of the base material 20.

[0028] The base material 20 is plate-shaped and has a front surface 20a and a rear surface 20b at one end side (front) and the other end side (rear) in the front-rear direction L, respectively. The front surface 20a forms the surface on the design surface 11a side of the first exterior member 11. The rear surface 20b forms the surface 11b on the side opposite to the design surface 11a of the first exterior member 11. Note that in the present embodiment, the front-rear direction L corresponds to the thickness direction of the base material according to the present invention, and the front surface 20a corresponds to one end surface in the thickness direction of the base material according to the present invention.

[0029] The linear expansion coefficient of the resin material forming the base material 20 is 1.0×10 -4 / °C or less. The Young's modulus of the resin material forming the base material 20 is 2.0 GPa or more. As the resin material for forming the base material 20, it is preferably a transparent resin having visible light transmissibility. Note that in the present embodiment, "transparent" includes not only colorless and transparent but also colored transparent (colored and transparent). In the present embodiment, the base material 20 is formed of a polycarbonate resin (PC).

[0030] As shown in FIG. 3, the colored layer 30 is a coating film formed of a paint containing a colored pigment and constitutes the design surface 11a of the first exterior member 11. Examples of the colored pigment include inorganic pigments such as titanium oxide and carbon black in addition to organic pigments.

[0031] As the paint, known synthetic resin paints such as polyester resin-based, acrylic resin-based, epoxy resin-based, melamine resin-based, urethane resin-based, and silicone resin-based can be used. The paint may contain pigments other than colored pigments such as bright pigments like aluminum flakes and pearl mica, and extender pigments.

[0032] In addition to the above-described resin material and pigment, the paint may be appropriately mixed with a solvent, a curing agent, a catalyst, etc., or may be added with known paint additives such as a plasticizer, a dispersant, an anti-settling agent, an antifoaming agent, a surface conditioner, and a stabilizer (anti-degradation agent).

[0033] (Sensor cover part 13) In the first exterior member 11, the portion indicated by the two-dot chain line in FIGS. 1 and 2 constitutes a sensor cover part 13 that covers the radar device 15 from the front. The sensor cover part 13 has millimeter-wave transmissibility.

[0034] Hereinafter, in the first exterior member 11, the portion other than the sensor cover part 13 will be described as a general part 14. In the present embodiment, the sensor cover part 13 and the general part 14 are integrally formed.

[0035] As shown in FIG. 3, the design surface 13a of the sensor cover portion 13 constitutes a part of the design surface 11a of the first exterior member 11 and is provided flush with the portion of the design surface 11a corresponding to the general portion 14. Further, the surface 13b on the side opposite to the design surface 13a of the sensor cover portion 13 constitutes a part of the surface 11b of the first exterior member 11 and is provided flush with the portion of the surface 11b corresponding to the general portion 14.

[0036] As shown in FIGS. 2 and 3, the sensor cover portion 13 has a heater sheet 40 between the base material 20 and the coloring layer 30 in the front-rear direction L. The heater sheet 40 has a resin-made first sheet base material 41 and second sheet base material 42, and a heater wire 43 that generates heat when energized.

[0037] The first sheet base material 41 is laminated and joined to the front surface 20a of the base material 20. The linear expansion coefficient of the resin material forming the first sheet base material 41 is 1.0×10 -4 / °C or less.

[0038] The Young's modulus of the resin material forming the first sheet base material 41 is 2.0 GPa or more. From the viewpoint of adhesion to the base material 20, the resin material forming the first sheet base material 41 is preferably the same as the resin material forming the base material 20. In the present embodiment, the first sheet base material 41 is formed of PC.

[0039] The second sheet base material 42 is disposed between the first sheet base material 41 and the coloring layer 30 in the front-rear direction L. The linear expansion coefficient of the resin material forming the second sheet base material 42 is 1.0×10 -4 / °C or less.

[0040] The Young's modulus of the resin material forming the second sheet base material 42 is 2.0 GPa or more. The resin material forming the second sheet base material 42 preferably has higher weather resistance than the resin material forming the first sheet base material 41. In the present embodiment, the second sheet base material 42 is formed of polymethyl methacrylate resin (PMMA).

[0041] The first sheet base material 41 and the second sheet base material 42 are integrally formed into a sheet shape, for example, by coextrusion molding. As shown in FIGS. 2 and 3, the heater wire 43 is formed of a metal wire and is wired along the rear surface 41a of the first sheet base material 41 in a predetermined wiring pattern. Specifically, the heater wire 43 is wired in a wiring pattern having a plurality of straight portions 43a extending parallel to each other and a plurality of connecting portions 43b connecting the ends of the adjacent straight portions 43a in the vehicle width direction W (see FIG. 2).

[0042] The heater wire 43 is wired to the rear surface 41a, for example, by pressing and embedding it against the rear surface 41a of the sheet base material 41 while heating. (Manufacturing procedure of the first exterior member 11) The first exterior member 11 having such a configuration is manufactured, for example, by the following manufacturing procedure.

[0043] First, the base material 20 is injection-molded with the heater sheet 40 as an insert member. Thereby, the heater sheet 40 is joined to the base material 20. Specifically, the first sheet base material 41 of the heater sheet 40 and the base material 20 are joined.

[0044] Next, the same paint as the colored layer (not shown) constituting the design surface 12a of the second exterior member 12 is applied to the base material 20 to which the heater sheet 40 is joined. Thereby, the first exterior member 11 having the colored layer 30 formed thereon is obtained.

[0045] <Operation of the first embodiment> Next, the operation of the present embodiment will be described. A colored layer 30 formed by a paint containing a coloring pigment is disposed on the outermost surface of the first exterior member 11. Therefore, the first exterior member 11 has the colored layer 30 on its outermost surface, similar to the second exterior member 12, which is another general exterior member disposed around the first exterior member 11. By matching the color of the colored layer 30 with the color of the colored layer of the surrounding second exterior member 12, the sense of unity in appearance between the first exterior member 11 and the surrounding second exterior member 12 can be enhanced.

[0046] Also, a heater sheet 40 is laminated on the front surface 20a of the base material 20. Therefore, compared with the case where the heater sheet 40 is laminated on the rear surface 20b of the base material 20, the heater sheet 40 is disposed closer to the design surface 13a of the sensor cover portion 13 in the front-rear direction L. As a result, the Joule heat of the heater sheet 40 is easily transmitted to the design surface 13a of the sensor cover portion 13, and the ice and snow adhering to the design surface 13a can be efficiently melted. Moreover, since the heater sheet 40 is covered by the colored layer 30, the design property of the sensor cover portion 13 and thus the first exterior member 11 is not impaired by the visibility of the heater sheet 40.

[0047] <Effects of the First Embodiment> Next, the effects of this embodiment will be described. (1-1) The first exterior member 11 has a plate-shaped base material 20 formed of a resin material (PC) and a heater sheet 40 laminated on the front surface 20a of the base material 20. The heater sheet 40 has a first sheet base material 41 joined to the front surface 20a and a heater wire 43 wired along the first sheet base material 41 and generating heat when energized. On the side opposite to the base material 20 with the first sheet base material 41 interposed therebetween in the front-rear direction L, a colored layer 30 formed by a paint containing a coloring pigment is provided.

[0048] According to such a configuration, the above-described operations are achieved. Therefore, while enhancing the snow melting function, the sense of unity in appearance between the first exterior member 11 and the second exterior member 12 disposed around the first exterior member 11 can be enhanced.

[0049] (1-2) The base material 20 has visible light transmittance. The base material 20 constitutes the surface 11b on the side opposite to the design surface 11a of the first exterior member 11. According to such a configuration, since the base material 20 has visible light transmittance, the heater wire 43 of the heater sheet 40 can be visually recognized from the surface 11b on the side opposite to the design surface 11a of the first exterior member 11. Therefore, the inspection of the heater wire 43 can be easily performed.

[0050] (1-3) Between the first sheet base material 41 and the colored layer 30 in the front-rear direction L, a second sheet base material 42 formed of a resin material (PMMA) having higher weather resistance than the resin material (PC) forming the first sheet base material 41 is provided.

[0051] Since the resin materials forming the first sheet base material 41 and the base material 20 are PC, the first sheet base material 41 and the base material 20 are likely to be yellowed by ultraviolet rays. In this regard, according to the above configuration, the yellowing of the first sheet base material 41 and the base material 20 can be suppressed by the second sheet base material 42.

[0052] (1-4) The sensor cover portion 13 of the first exterior member 11 has millimeter wave transmittance. In the first exterior member 11 disposed in front of the radar device 15, when ice and snow adhere to the design surface 13a, the millimeter wave transmitted through the sensor cover portion 13 of the first exterior member 11 is attenuated by the ice and snow, so there is a possibility of degrading the detection function of the radar device 15.

[0053] In this regard, according to the above configuration, the Joule heat of the heater sheet 40 is likely to be transmitted to the design surface 13a of the sensor cover portion 13, so that the ice and snow adhering to the design surface 13a can be efficiently melted. Therefore, the attenuation of the millimeter wave due to the adhesion of ice and snow can be suppressed.

[0054] <Second Embodiment> Next, with reference to FIG. 4, a second embodiment of the vehicle exterior component will be described. In the first exterior member 111 of the second embodiment, the configurations of the sensor cover portion 113 and the colored layer 130 are different from those of the first embodiment.

[0055] Hereinafter, the differences from the first embodiment will be mainly described. In the second embodiment, for the same configurations as those in the first embodiment, the same reference numerals as those in the first embodiment are assigned, and for the corresponding configurations, reference numerals "1**" obtained by adding "100" to each reference numeral "**" in the first embodiment are assigned, so that overlapping descriptions are omitted.

[0056] As shown in FIG. 4, the first exterior member 111 has a base material 20 and a colored layer 130. Further, the first exterior member 111 has a sensor cover portion 113 that covers the radar device 15 from the front, and a general portion 114 that is a portion other than the sensor cover portion 113.

[0057] The sensor cover portion 113 has a heater sheet 140 between the base material 20 and the colored layer 130. In the heater sheet 140 of this embodiment, the second sheet base material 42 is omitted from the heater sheet 40 of the first embodiment.

[0058] The colored layer 130 is formed of a resin material in which a coloring agent is dispersed. The linear expansion coefficient of the resin material forming the colored layer 130 is preferably 1.0×10 -4 / °C or less.

[0059] The Young's modulus of the resin material forming the colored layer 130 is preferably 2.0 GPa or more. The colored layer 130 is preferably formed of a resin material having higher weather resistance than the resin material forming the sheet base material 41. In this embodiment, the colored layer 130 is formed of PMMA.

[0060] As the coloring agent, known coloring agents of dye-based, pigment-based, and chemical-based can be appropriately used. (Manufacturing procedure of the first exterior member 111) The first exterior member 111 having such a configuration is manufactured, for example, as follows.

[0061] First, with the heater sheet 140 as an insert member, the base material 20 is injection-molded. As a result, the heater sheet 140 is joined to the base material 20. Next, a colored layer 130 is joined to the base material 20 to which the heater sheet 140 is joined. As a result, the first exterior member 111 having the colored layer 130 is obtained.

[0062] <Actions and effects of the second embodiment> Next, the actions and effects of this embodiment will be described. According to this embodiment, in addition to the effects (1-2) and (1-4) of the first embodiment, the following actions and effects can be newly achieved.

[0063] (2-1) The first exterior member 111 has a plate-shaped base material 20 formed of a resin material (PC) and a heater sheet 140 laminated on the front surface 20a of the base material 20. The heater sheet 140 has a sheet base material 41 joined to the front surface 20a and a heater wire 43 wired along the sheet base material 41 and generating heat when energized. On the side opposite to the base material 20 with the sheet base material 41 sandwiched therebetween in the front-rear direction L, a colored layer 130 formed of a resin material (PMMA) in which a colorant is dispersed is provided.

[0064] According to such a configuration, the colored layer 130 formed of a resin material (PMMA) in which a colorant is dispersed is disposed on the outermost surface of the first exterior member 111. For this reason, the first exterior member 111 has a colored layer 130 on its outermost surface, similar to the second exterior member 12 which is another general exterior member disposed around the first exterior member 111. Thereby, by matching the color of the colored layer 130 with the color of the colored layer (not shown) of the surrounding second exterior member 12, the sense of unity in appearance between the first exterior member 111 and the surrounding second exterior member 12 can be enhanced.

[0065] Further, the heater sheet 140 is laminated on the front surface 20a of the base material 20. Therefore, compared with the case where the heater sheet 140 is laminated on the rear surface 20b of the base material 20, the heater sheet 140 is disposed at a position closer to the design surface 113a of the sensor cover portion 113 in the front-rear direction L. As a result, the Joule heat of the heater sheet 140 is easily transmitted to the design surface 113a of the sensor cover portion 113, so that the ice and snow adhering to the design surface 113a can be efficiently melted. Moreover, since the heater sheet 140 is covered with the colored layer 130, the design property of the sensor cover portion 113 and thus the first exterior member 111 is not impaired by the visibility of the heater sheet 140.

[0066] Therefore, while enhancing the snow melting function, the sense of unity in appearance between the first exterior member 111 and the second exterior member 12 disposed around the first exterior member 111 can be enhanced. (2-2) The colored layer 130 is formed of a resin material (PMMA) having higher weather resistance than the resin material (PC) forming the sheet base material 41, with the colorant dispersed therein.

[0067] According to such a configuration, the colored layer 130 imparts high weather resistance to the heater sheet 140. For this reason, compared with the case where a resin layer formed of PMMA, which is a resin material having higher weather resistance than the sheet base material 41, is separately provided between the colored layer 130 and the sheet base material 41, the layer configuration of the heater sheet 140 can be simplified. Therefore, high weather resistance can be imparted to the heater sheet 140 with a simple configuration.

[0068] <Modification Example> The above embodiment can be modified and implemented as follows. The above embodiment and the following modification examples can be implemented in combination with each other within a technically non-conflicting range. In the modification examples, for the same configurations as those in the second embodiment, the same reference numerals as those in the second embodiment are given, and for the corresponding configurations, reference numerals "2**" obtained by adding "100" or "200" to each reference numeral "**" in the second embodiment are given, thereby omitting overlapping explanations.

[0069] · The base material 20 is not limited to having visible light transmittance. The base material 20 may be, for example, a light-shielding material formed of a mixed material of PC and carbon black. · In the above embodiment, an example is given in which the (first) sheet base material 41 and the base material 20 are joined by injection molding the base material 20 with the heater sheet 40 (140) as an insert member, but the joining method of the heater sheet 40 (140) and the base material 20 is not limited to this. The first exterior member 11 (111) may be, for example, one in which the heater sheet 40 (140) is adhered to the front surface 20a of the injection-molded base material 20, so that the (first) sheet base material 41 and the base material 20 are joined.

[0070] · The radar device 15 may be one that detects an object outside the vehicle by transmitting and receiving electromagnetic waves different from millimeter waves, for example, infrared rays. In this case, the sensor cover portion 13 (113) of the first exterior member 11 (111) is not limited to having millimeter wave transmittance as exemplified in the above embodiment, and may have transmittance with respect to the electromagnetic waves transmitted and received by the radar device 15.

[0071] · The heater sheet 40 may have an adhesive interposed between the first sheet base material 41 and the second sheet base material 42. · The second sheet base material 42 is not limited to being formed of a resin material having higher weather resistance than the resin material forming the first sheet base material 41. The resin material forming the second sheet base material 42 has a linear expansion coefficient of 1.0×10 -4 / °C or less and a Young's modulus of 2.0 GPa or more, and may be the same as the resin material forming the first sheet base material 41, or may have lower weather resistance than the resin material.

[0072] · The colored layer 130 is not limited to being formed of a resin material having higher weather resistance than the resin material forming the sheet base material 41. The resin material forming the colored layer 130 has a linear expansion coefficient of 1.0×10 -4If it is below / °C and the Young's modulus is 2.0 GPa or more, it may be the same as the resin material forming the sheet base material 41, or it may be less weather-resistant than the resin material.

[0073] · The heater sheet 40 is not limited to being composed of the first sheet base material 41, the second sheet base material 42, and the heater wire 43 as exemplified in the first embodiment. For example, the heater sheet 40 may be one in which the second sheet base material 42 is omitted, or may further have a resin sheet base material in addition to the first sheet base material 41 and the second sheet base material 42. In this case, the resin material forming the sheet base material only needs to have a linear expansion coefficient of 1.0×10 -4 / °C or less and a Young's modulus of 2.0 GPa or more.

[0074] · The heater sheet 140 is not limited to being composed of the sheet base material 41 and the heater wire 43 as exemplified in the second embodiment. For example, the heater sheet 140 may further include a resin sheet base material between the colored layer 130 and the sheet base material 41. In this case, the resin material forming the sheet base material only needs to have a linear expansion coefficient of 1.0×10 -4 / °C or less and a Young's modulus of 2.0 GPa or more.

[0075] · The vehicle exterior part according to the present invention is not limited to having both the sheet base material 41 and the colored layer 130 as exemplified in the second embodiment. For example, as shown in FIG. 5, the present invention can be embodied as the first exterior member 211 in which the colored layer 130 is omitted from the first exterior member 111. As shown in FIG. 5, the design surface 211a of the first exterior member 211 is composed of the sheet base material 241 of the heater sheet 240. That is, the design surface 213a and the portion corresponding to the general portion 214 of the design surface 111a are composed of the sheet base material 241. Further, the sheet base material 241 is formed of a resin material in which a colorant is dispersed.

[0076] According to such a configuration, a resin sheet base material 241 in which a colorant is dispersed is disposed on the outermost surface of the first exterior member 211. Thereby, by matching the color of the sheet base material 241 with the color of a coloring layer (not shown) of a second exterior member 12, which is another general exterior member disposed around the first exterior member 211, the unity of appearance between the first exterior member 211 and the surrounding second exterior member 12 can be enhanced.

[0077] Also, according to the above configuration, the ice and snow adhering to the design surface 213a can be efficiently melted. Moreover, since the heater wire 43 is covered with the sheet base material 241 in which the colorant is dispersed, the design property of the sensor cover portion 213, and thus the first exterior member 211, is not impaired by the visibility of the heater wire 43.

[0078] Therefore, it is possible to enhance the unity of appearance between the first exterior member 211 and the second exterior member 12 disposed around the first exterior member 211 while enhancing the snow melting function. · The vehicle exterior part according to the present invention is not limited to the one in which the sensor cover portion 13 (113) and the general portion 14 (114) are provided flush with each other as exemplified in the above embodiment. For example, the vehicle exterior part may be one in which the sensor cover portion 13 (113) and the general portion 14 (114) are connected via a step, or may be one adjacent to each other via a gap (a hole penetrating in the front-rear direction L).

[0079] · The vehicle exterior part according to the present invention is not limited to the one in which the sensor cover portion 13 (113) and the general portion 14 (114) are integrally provided as exemplified in the above embodiment. For example, the vehicle exterior part may be one in which the sensor cover portion 13 (113) is provided separately from the general portion 14 (114). In this case, the sensor cover portion 13 (113) corresponds to the vehicle exterior part according to the present invention, and the general portion 14 (114) corresponds to an exterior member disposed around the vehicle exterior part.

Explanation of reference numerals

[0080] L... Front-rear direction W... Vehicle width direction 10…Vehicle 10A…Front part 11, 111, 211…First exterior member 11a, 111a, 211a…Design surface 11b…Surface 12…Second exterior member 12a…Design surface 13, 113, 213…Sensor cover part 13a, 113a, 213a…Design surface 13b…Surface 14, 114, 214…General part 15…Radar device 20…Base material 20a…Front surface 20b…Rear surface 30, 130, 230…Coloring layer 40, 140, 240…Heater sheet 41, 241…(First) sheet base material 41a…Rear surface 42…Second sheet base material 43…Heater wire 43a…Straight part 43b…Connection part

Claims

1. An exterior component for a vehicle, comprising a plate-shaped base material formed of a resin material and a heater sheet laminated on one end surface in the thickness direction of the base material, wherein the one end surface constitutes the surface on the design surface side of the exterior component for a vehicle, the heater sheet has a resin sheet base material joined to the one end surface and a heater wire wired along the sheet base material and generating heat when energized, a colored layer formed of a resin material in which a colorant is dispersed or a paint containing a colored pigment is provided on the side opposite to the base material with the sheet base material interposed therebetween in the thickness direction, an exterior component for a vehicle.

2. The base material has visible light transmissivity and constitutes the surface on the side opposite to the design surface of the exterior component for a vehicle, the exterior component for a vehicle according to Claim 1.

3. When the sheet base material is a first sheet base material, a second sheet base material formed of a resin material having higher weather resistance than the resin material forming the first sheet base material is provided between the first sheet base material and the colored layer in the thickness direction, the exterior component for a vehicle according to Claim 2.

4. The colored layer is formed of a resin material in which the colorant is dispersed and which has higher weather resistance than the resin material forming the sheet base material, the exterior component for a vehicle according to Claim 2.

5. Having millimeter wave transmissivity, the exterior component for a vehicle according to any one of Claims 1 to 4.

6. An exterior component for a vehicle, comprising a plate-shaped base material formed of a resin material and a heater sheet laminated on one end surface in the thickness direction of the base material, wherein the one end surface constitutes the surface on the design surface side of the exterior component for a vehicle, the heater sheet has a resin sheet base material joined to the one end surface and a heater wire wired along the sheet base material and generating heat when energized, a colorant is dispersed in the sheet base material, an exterior component for a vehicle.

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