JP7149832B2 - RADAR COVER AND METHOD FOR MANUFACTURING RADAR COVER - Google Patents

Description

The present invention relates to a radar cover and a radar cover manufacturing method.

In recent years, vehicles are equipped with radar units that detect obstacles and the like around the vehicle using radio waves such as millimeter waves. Such a radar unit is arranged inside a vehicle while being covered from the front with a radar cover on which an identification mark such as an emblem is formed.

The radar cover needs to be able to transmit radio waves transmitted and received by the radar unit without attenuating them as much as possible. On the other hand, in order to enhance the texture of identification marks such as emblems formed on the radar cover, it is necessary to impart a metallic luster to a portion of the radar cover. For this reason, in the radar cover, for example, a concave portion is formed on the back surface of the light-transmitting member arranged on the front side of the radar cover, and an indium vapor-deposited layer or a sputtering layer capable of transmitting radio waves is formed in the concave portion to achieve metallic luster. It is possible to transmit radio waves while obtaining

JP-A-2000-49522

By the way, in recent years, in the radar cover as described above, there is a case where decoration is performed along the edge of the identification mark such as the emblem. In such a case, for example, it is conceivable to dispose the decorative member on the side of the identification mark so that the decorative member can be visually recognized from the outside through a transparent member. However, the decoration applied along the edge of the identification mark is generally finer than the identification mark. For this reason, the decorative member becomes an extremely small member, which may be difficult to form.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a radar cover having an identification mark or the like, and to enable fine decoration to be easily applied along the edge of the identification mark or the like. do.

The present invention employs the following configurations as means for solving the above problems.

A first invention is a radar cover comprising: a transparent member provided with a concave portion on the back surface; a colored core accommodated in the concave portion of the transparent member; and a support member joined to the back surface of the transparent member, a decorative portion that decorates along the edge of the colored core, wherein the decorative portion is arranged to the side of the colored core along the edge of the colored core; and a back connecting portion joined to the colored core and at least a part of which is arranged on the back side of the colored core.

In a second aspect based on the first aspect, the decorative portion is connected to the plurality of visible portions arranged along the edge of the single colored core and to the plurality of visible portions. A configuration is adopted in which a rear connecting portion is provided.

A third invention adopts a configuration in which the entire decorative portion is made of the same material in the first or second invention.

A fourth invention is any one of the first to third inventions, wherein the transparent member has a decorative recess provided on the back surface of the transparent member along the edge of the colored core, and the visible is disposed in the decorative recess.

According to a fifth aspect, in any one of the first to third aspects, a surface of the visible portion on the transparent member side and a surface of the rear connection portion on the colored core side are flush with each other. to adopt.

A sixth aspect of the invention includes a transparent member forming step of forming a transparent member having a concave portion on the back surface thereof, a colored core forming step of forming a colored core to be accommodated in the concave portion of the transparent member, and a colored core forming step of forming the colored core in the concave portion. a support member forming step of forming a support member bonded to the back surface of the transparent member in which the transparent member is accommodated in the recess before the support member forming step; A decorating portion forming step of forming a decorating portion for decorating along the edge of the colored core, wherein the decorating portion is arranged laterally of the colored core along the edge of the colored core. and a back connecting part joined to the visible part and having at least a part thereof arranged on the back side of the colored core.

In a seventh aspect based on the sixth aspect, the decorative portion is connected to the plurality of visible portions arranged along the edge of the single colored core and to the plurality of visible portions. A configuration is adopted in which a rear connecting portion is provided.

In an eighth invention based on the sixth or seventh invention, molten resin is supplied through a gate connected to a space for molding the back connecting portion of the decorating portion in the decorating portion forming step. A configuration is adopted in which the decorative portion is formed by injection molding of supply.

In a ninth aspect of the invention, in the transparent member forming step, a decorative concave portion is provided along the edge of the concave portion, and in the decorative portion forming step, the visible portion is arranged in the decorative concave portion. A configuration is adopted in which the decorative portion is formed in the .

According to the present invention, the decorative portion has the visible portion arranged on the side of the colored core and the back connecting portion arranged on the back of the colored core. Therefore, even if the visible portion visible from the outside is fine, the size of the decorative portion can be increased by the back connecting portion invisible from the outside, compared to the case where only the visible portion is formed. Therefore, according to the present invention, a radar cover having an identification mark or the like can be easily finely decorated along the edge of the identification mark or the like.

1 is a front view of a radiator grill provided with a radar cover according to a first embodiment of the invention; FIG. It is an enlarged front view of the radar cover in the first embodiment of the present invention. FIG. 3 is a cross-sectional view taken along the line AA of FIG. 2; FIG. 3 is a cross-sectional view taken along the line BB of FIG. 2; BRIEF DESCRIPTION OF THE DRAWINGS It is the whole view of the decorating member with which the radar cover in 1st Embodiment of this invention is provided, (a) is a front view, (b) is a side view. It is a schematic diagram for demonstrating the manufacturing method of the radar cover in 1st Embodiment of this invention. FIG. 7 is a schematic enlarged cross-sectional view of a radar cover according to a second embodiment of the present invention; FIG. 11 is a schematic enlarged view of a boundary portion between a transparent member and an inner core included in a radar cover according to a second embodiment of the present invention;

An embodiment of a radar cover and a radar cover manufacturing method according to the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a front view of a radiator grille 1 having a radar cover 10 of this embodiment. FIG. 2 is an enlarged front view of the radar cover 10 of this embodiment.

A radiator grille 1 is provided in the front of the vehicle so as to block an opening leading to the engine room of the vehicle, ensuring ventilation to the engine room and preventing foreign matter from entering the engine room. A radar cover 10 is provided in the center of the radiator grille 1 so as to face the radar unit R (see FIG. 3) arranged in the engine room. The radar unit R has, for example, a transmitter that transmits millimeter waves, a receiver that receives reflected waves, and a calculator that performs arithmetic processing. The radar unit R transmits and receives radio waves that pass through the radar cover 10, and detects the surrounding conditions of the vehicle based on the received radio waves. For example, the radar unit R calculates and outputs the distance to the obstacle, the relative speed of the obstacle, and the like.

The radar cover 10 is arranged to cover the radar unit R when viewed from the front side of the vehicle. As shown in FIG. 2, the radar cover 10 has a bright region 10A representing figures, letters, etc. indicating a recognition mark such as an emblem of a vehicle manufacturer, and visibility of the bright region 10A when viewed from the front side of the vehicle. It is a part having a black region 10B to be improved and a decorative region 10C bordering the bright region 10A. For example, the decorative region 10C has a color such as blue that is different from the black region 10B. In the present embodiment, two decorative regions 10C are provided for a single bright region 10A (an inner core 12 to be described later), each having a curved shape along the edge of the bright region 10A. ing.

FIG. 3 is a schematic cross-sectional view taken along line AA of FIG. FIG. 4 is a schematic cross-sectional view taken along line BB of FIG. As shown in these drawings, the radar cover 10 includes a transparent member 11, an inner core 12 (colored core), a base member 13 (support member), and a decorative member . The transparent member 11 is a portion formed of a substantially rectangular transparent resin material and arranged on the outermost side of the vehicle. The transparent member 11 has a smooth front surface in order to enhance the visibility of the inner core 12 from the outside of the vehicle. A housing recess 11 a (recess) in which the inner core 12 is arranged is formed on the back surface of the transparent member 11 .

The accommodation recess 11a is a portion that accommodates the inner core 12, and allows the accommodated inner core 12 to be viewed three-dimensionally from the front side of the vehicle. This housing recess 11a is provided along the shape of the figure or character of the recognition mark such as the vehicle manufacturer's emblem. As shown in FIG. 3, the above-described bright region 10A is formed by arranging the inner core 12 in such a housing recess 11a.

A decorative recess 11b is formed on the back surface of the transparent member 11 to accommodate a portion of the decorative member 14 (visible portion 14a, which will be described later). The decorative concave portion 11b is a concave portion shallower than the accommodating concave portion 11a, and makes a part of the accommodated decorative member 14 stereoscopically visible from the front side of the vehicle. The decorative recess 11b is provided in an annular shape so as to surround the housing recess 11a, that is, it is provided adjacent to the edge of the inner core 12 when viewed from the front side. Thus, in this embodiment, the transparent member 11 has the decorative recess 11 b provided adjacent to the edge of the inner core 12 . By arranging the visible portion 14a of the decorative member 14 in such a decorative concave portion 11b, the aforementioned decorative region 10C is formed.

Such a transparent member 11 is made of transparent synthetic resin such as colorless PC (polycarbonate) or PMMA (polymethyl methacrylate resin), and has a thickness of about 1.5 mm to 10 mm. Further, the front surface of the transparent member 11 is subjected to a hard coat treatment for scratch prevention or a clear coat treatment of urethane-based paint, if necessary. If the transparent synthetic resin has scratch resistance, these anti-scratch treatments are unnecessary.

The inner core 12 is formed by laminating a base portion, a base coat layer, a glitter film, and a top coat layer. Note that the inner core 12 is not shown divided into a plurality of layers in order to improve visibility in the drawing. The base is molded by injection molding or the like, and is made of synthetic resin such as ABS, PC, or PET. The base portion has a convex shape that embeds the accommodation recess 11 a of the transparent member, and is fitted into the accommodation recess 11 a of the transparent member 11 . The base coat layer is formed between the base and the glitter film, and serves to improve the adhesion between the base and the glitter film. This base coat layer is formed, for example, by clear coating using a transparent (including colored transparent) synthetic resin.

The glitter film is a layer having metal glitter that is formed on the surface of the front side of the base (the surface on the side of the transparent member 11) and is arranged so as to cover the base. This glitter film is a metallic thin film made of, for example, indium (In). This glittering film has a structure having a plurality of island portions arranged with gaps therebetween, and is a discontinuous film having many fine gaps. Such a glittering film allows radio waves to pass through these gaps. The inner core 12 has a metallic color due to such a glittering film.

The topcoat layer is formed on the glitter film so as to cover the glitter film and protects the glitter film. Like the base coat layer, this top coat layer is also formed by clear coating using a transparent (including colored transparent) synthetic resin.

The base coat layer and the top coat layer can also be transparent ceramic coat layers made of silicon oxide (SiOx). In this case, the base coat layer and top coat layer made of a resin formed by clear coating or the like have higher heat resistance and higher radio wave transmittance.

Moreover, in this embodiment, the glitter film is formed on the surface of the base on which the base coat layer is formed. Note that the base coat layer may be omitted when a glittering film with high adhesion is used.

The base member 13 is a part fixed to the back side of the transparent member 11 and supports the transparent member 11 from the back side. The base member 13 has an engaging portion 13a projecting toward the engine room. The engaging portion 13a has a claw-shaped tip, and the tip is engaged with, for example, a radiator grill body.

Such a base member 13 is composed of ABS (acrylonitrile-butadiene-styrene copolymer synthetic resin), AES (acrylonitrile-ethylene-styrene copolymer synthetic resin), ASA (acrylonitrile-styrene-acrylate), PBT (polybutylene terephthalate), It is made of a colored synthetic resin such as PC or PET, or a composite resin of these, and has a thickness of about 0.5 mm to 10 mm.

The decorative member 14 is arranged between the transparent member 11 and the base member 13 and provided corresponding to each inner core 12 . In other words, the number of decorative members 14 is the same as the number of inner cores 12, and two decorative members are provided in the present embodiment. FIG. 5 is a diagram showing the shape of the decorative member 14, where (a) is a front view and (b) is a side view. As shown in these figures, each decorative member 14 has a visible portion 14a housed in the decorative concave portion 11b of the transparent member 11 and a rear connecting portion 14b partly arranged on the rear surface of the inner core 12. have.

The visible portion 14 a is a portion in which the decorative concave portion 11 b of the transparent member 11 is embedded, and is visible from the outside through the transparent member 11 . Such a visible portion 14a forms the decoration area 10C described above by being housed in the decoration concave portion 11b. In this embodiment, two decorative regions 10C are provided for one bright region 10A (that is, one inner core 12). Therefore, each decorative member 14 is provided with two visible portions 14a. Each visible portion 14a has a curved shape along the edge of the inner core 12, as shown in FIG. 5(a).

The rear connection portion 14b is connected to the rear surface of each visible portion 14a and is an annular portion that connects the two visible portions 14a. As shown in FIG. 5A, the rear connecting portion 14b is wider than the visible portion 14a, and is provided so as to protrude radially inward from the visible portion 14a. In such a rear connection portion 14b, the portion arranged in the region where the visible portion 14a is provided is arranged on the rear surface of the visible portion 14a, and the portion arranged in the region where the visible portion 14a is not provided is the inner core. It is located on the back of 12.

Such a decorative member 14 has a shape in which a minute visible portion 14a is held by the back connecting portion 14b, and the plurality of visible portions 14a are connected by the back connecting portion 14b and are larger than the visible portion 14a. It is considered to be a shape. Therefore, compared with the case where each of the visible portions 14a is made of a single component, the visible portions 14a can be easily formed and the rigidity of the visible portions 14a can be improved.

On the other hand, since the rear connecting portion 14b is arranged on the visible portion 14a or the rear surface of the inner core 12, the portion of the decorative member 14 that is visible through the transparent member 11 is only the visible portion 14a. Therefore, it is possible to finely decorate the radar cover 10 with the decorative member 14 .

Next, a method for manufacturing the radar cover 10 of this embodiment will be described with reference to FIG. FIG. 6 is a schematic diagram for explaining the manufacturing method of the radar cover 10 of this embodiment. First, as shown in FIG. 6A, a transparent member 11 is formed. For example, the transparent member 11 is formed by injection molding. Since the transparent member 11 having the accommodating recess 11a and the decorative recess 11b can be formed by this injection molding, there is no need to form the accommodating recess 11a and the decorative recess 11b in a post-process. If necessary, the surface side (the surface facing the outside of the vehicle) or the entire surface of the transparent member 11 may be subjected to a hard coat treatment for improving durability and the like. The process shown in FIG. 6A corresponds to the transparent member forming process of forming the transparent member 11 having the housing recess 11a and the decorative recess 11b on the back surface.

Further, when forming the transparent member 11, it is desirable to perform processing to reduce irregularities of the inner wall surfaces of the accommodating recess 11a and the decorative recess 11b of the transparent member 11. FIG. In this case, for example, the arithmetic mean roughness and the maximum height of the inner wall surfaces of the housing recess 11a and the decorative recess 11b are the arithmetic mean roughness and the maximum height of the area excluding the housing recess 11a and the decorative recess 11b on the back surface of the transparent member 11. Grind so as to be smaller than the maximum height. Instead of performing post-processing to reduce the unevenness of the inner wall surfaces of the housing recess 11a and the decorative recess 11b of the transparent member 11, the housing recess 11a and the decorative recess 11b are formed in a mold used for injection molding. It is also possible to reduce the irregularities of the inner wall surfaces of the housing recess 11a and the decorative recess 11b of the transparent member 11 by previously reducing the surface roughness of the portion to be covered.

Next, as shown in FIG. 6(b), the inner core 12 is formed. For example, the base is formed by injection molding. Also, a base coat layer is formed by applying a clear coat to the base and then drying it. Also, a glittering film is formed on the base coat layer by sputtering or vacuum deposition. Also, a topcoat layer is formed by applying a clear coat to the surface of the glitter film and then drying it. It is not necessary to form the inner core 12 after forming the transparent member 11 shown in FIG. 6(a). By forming the inner core 12 in parallel with the step of forming the transparent member 11 shown in FIG. 6A, the manufacturing time of the radar cover 10 can be shortened. The process shown in FIG. 6B corresponds to the inner core forming process (color core forming process) for forming the inner core 12 accommodated in the accommodation recess 11 a of the transparent member 11 .

Subsequently, as shown in FIG. 6(c), the inner core 12 is fitted into the accommodation recess 11a of the transparent member 11. Then, as shown in FIG. Next, as shown in FIG. 6(d), the decorative member 14 is formed. Here, the transparent member 11 with the inner core 12 installed in the accommodating recess 11a is placed inside the mold 50 for injection molding, and insert molding is performed by injecting molten resin to the back side of the transparent member 11. , forming the decorative member 14 . Such a decorative member 14 is welded to the transparent member 11 by heat during insert molding, and is also welded to a portion of the back surface of the inner core 12 . Further, by forming the decorative member 14 by injection molding, the molten resin flows into the decorative concave portion 11b, and the decorative member 14 having the visible portion 14a is formed. In addition, since the decorative member 14 has the back connecting portion 14b, it is possible to secure a wider internal space of the mold for pouring the molten resin compared to the case where the back connecting portion 14b is not provided. For this reason, it becomes possible to make the molten resin flow even into the fine decorative recesses 11b more reliably. The step shown in FIG. 6D is the step of forming a decorative member for forming a decorative member 14 for decorating along the edge of the inner core 12 housed in the housing recess 11a prior to the base member forming step. This corresponds to the step (decorating portion forming step).

Further, as shown in FIG. 6(d), the gate 51 of the mold 50 is provided so that the discharge opening of the molten resin is arranged in the space for forming the back connecting portion 14b of the decorative member 14. there is The decorative member 14 is formed by supplying molten resin to the internal space of the mold 50 through the gate 51 .

Next, as shown in FIG. 6(e), the base member 13 is formed. Here, the transparent member 11 provided with the decorative member 14 is placed inside a metal mold for injection molding, and insert molding is performed by injecting molten resin into the back side of the transparent member 11 to obtain a base member. form 13. Such a base member 13 is welded to the transparent member 11 by heat during insert molding, and arranged so as to cover the inner core 12 and the decorative member 14 . The back surface of the inner core 12 and the back surface of the decorative member 14 are also welded to the base member 13 . The inner core 12 and the decorative member 14 are thereby supported by the base member 13 . The step shown in FIG. 6(e) corresponds to a base member forming step (supporting member forming step) for forming the base member 13 bonded to the back surface of the transparent member 11 in which the inner core 12 is accommodated in the accommodation recess 11a.

According to the radar cover 10 of the present embodiment and the method of manufacturing the radar cover 10 as described above, the decorative member 14 is arranged on the visible portion 14a arranged on the side of the inner core 12 and on the rear surface of the inner core 12. and a rear connection portion 14b. Therefore, even if the visible portion 14a visible from the outside is miniaturized, the size of the decorative member 14 is larger than that in the case where the decorative member is configured only from the visible portion 14a due to the rear connection portion 14b invisible from the outside. can be increased. Therefore, according to the radar cover 10 of the present embodiment, fine decoration can be easily applied along the edge of the identification mark or the like.

Further, according to the radar cover 10 of the present embodiment, the decorative member 14 is connected to the plurality of (two) visible portions 14a arranged along the single inner core 12 and the plurality of visible portions 14a. and a rear connection portion 14b. Therefore, the plurality of visible portions 14a can be integrated with each other through the rear connection portion 14b, and a larger size of one decorative member 14 can be ensured.

Moreover, in the radar cover 10 of the present embodiment, the entire decorative member 14 is made of the same material. Therefore, the visible portion 14a and the rear connecting portion 14b can be formed simultaneously in one step.

Further, in the method of manufacturing the radar cover 10 of the present embodiment, the decorative member is formed by injection molding in which molten resin is supplied into the inner space of the mold 50 through the gate 51 connected to the space for molding the back surface connection portion 14b. 14 are formed. Therefore, it is possible to prevent the molten resin supplied from the gate 51 from being directly sprayed onto the decorative concave portion 11b of the transparent member 11 and to prevent the inner wall surface of the decorative concave portion 11b from being affected.

(Second embodiment)
Next, a second embodiment of the invention will be described with reference to FIGS. 7 and 8. FIG. In the description of this embodiment, the same reference numerals are given to the same parts as in the first embodiment, and the description thereof is omitted or simplified.

FIG. 7 is a cross-sectional view of the radar cover 20 of the present embodiment, and is a cross-sectional view at a position corresponding to the BB cross section of FIG. 2 used for explaining the radar cover 10 of the first embodiment. As shown in this figure, in the radar cover 20 of this embodiment, the decorative concave portion 11b is not provided on the rear surface of the transparent member 11. As shown in FIG. In other words, the periphery of the accommodation recess 11a of the transparent member 11 is flat.

Further, the radar cover 20 of the present embodiment has a substantially rectangular cross-sectional decorative member that is not provided with a projecting portion that is accommodated in the decorative recess 11b, compared to the decorative member 14 of the first embodiment. A member 21 is provided. In the present embodiment, the decorative member 21 has a visible portion 21a that protrudes outward from the edge portion of the inner core 12 when viewed from the front (a portion that is disposed laterally of the inner core 12).

In addition, the decorative member 21 has a rear connecting portion 21b arranged on the rear surface of the inner core 12. As shown in FIG. In this embodiment, the back connecting portion 21b is connected to the side surface of the visible portion 21a. The thickness dimensions of the visible portion 21a and the rear connection portion 21b are determined so that the surface of the visible portion 21a on the transparent member 11 side and the surface of the rear connection portion 21b on the inner core 12 side are flush with each other.

FIG. 8 is a schematic enlarged view of a boundary portion between the visible portion 21a and the rear connecting portion 21b of the decorative member 21. As shown in FIG. As shown in this figure, in the radar cover 20 of the present embodiment, the decorative member 21 further has a minute projection 21c projecting toward the transparent member 11 from the boundary between the visible portion 21a and the rear connection portion 21b. ing. The minute protrusion 21c is arranged in a minute gap between the inner core 12 and the inner surface of the accommodation recess 11a of the transparent member 11, and is visible from the outside through the transparent member 11. As shown in FIG. Two visible portions 21a and two microprojections 21c are provided for one inner core 12, like the visible portion 14a in the first embodiment.

Such minute projections 21c are formed by the molten resin in the slight minute space between the transparent member 11 and the inner core 12 when the decorative member 21 is formed by injection molding in the same manner as the decorative member 14 of the first embodiment. It is formed by entering into and then cooling the molten resin. Although the gap between the transparent member 11 and the inner core 12 is extremely small, it is shown large in the schematic diagram of FIG. 8 for easy viewing. Also, the thickness dimension of the minute projection 21c is extremely minute as well as the gap between the transparent member 11 and the inner core 12, but in the schematic diagram of FIG. there is

Although the thickness dimension of the minute protrusions 21c is extremely small, the minute protrusions 21c are formed in a wide range of the gap between the transparent member 11 and the inner core 12, so that they are easily visible from the outside. Further, since the minute protrusions 21c protrude and curve along the gap between the transparent member 11 and the inner core 12 from the base member 13 toward the transparent member 11 so as to stand steeply, the decorative region 10C can be made more three-dimensional. It becomes possible to In other words, according to the radar cover 20 of this embodiment having such a configuration, it is possible to make the decorative region 10C three-dimensional without providing the decorative concave portion 11b on the back surface of the transparent member 11. FIG.

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to the above embodiments. The various shapes, combinations, and the like of the constituent members shown in the above-described embodiment are merely examples, and can be variously changed based on design requirements and the like without departing from the gist of the present invention.

For example, in the above-described first embodiment, the configuration in which two visible portions 14a are provided for one inner core 12 has been described. However, the invention is not limited to this. For example, it is also possible to employ a configuration in which one or more than three visible portions 14a are provided for one inner core 12 . Further, in the above-described second embodiment, it is also possible to employ a configuration in which one inner core 12 is provided with one or more than three visible portions 21a and minute protrusions 21c.

Further, in the above-described second embodiment, the configuration in which the decorative member 21 includes the minute protrusions 21c has been described. However, the invention is not limited to this. For example, it is possible to employ a configuration in which a decorative member that does not have the minute protrusions 21c is provided.

Reference Signs List 1 Radiator grill 10 Radar cover 10A Brilliant area 10B Black area 10C Decorative area 11 Transparent member 11a Accommodating recess (recess) 11b Addition Decorative concave portion 12 Inner core (colored core) 13 Base member (supporting member) 13a Engagement portion 14 Decorative member (decorating portion) 14a Visible portion 14b Rear connection portion 20 Radar cover 21 Decorative member 21a Visible portion 21b Rear connection portion 21c Fine protrusion 50 Mold 51 Gate R … radar unit

Claims (9)

A radar cover comprising: a transparent member provided with a recess on the back surface; a colored core accommodated in the recess of the transparent member; and a support member joined to the back surface of the transparent member,
A decorating part for decorating along the edge of the colored core,
The decorating part is
a visible portion disposed laterally of the colored core along the edge of the colored core;
and a rear connecting portion that is joined to the visible portion and at least a portion of which is located on the rear side of the colored core. 3. The decorative portion has a plurality of the visible portions arranged along the edge of the single colored core, and a back connecting portion connected to the plurality of the visible portions. 1. The radar cover according to 1. 3. The radar cover according to claim 1, wherein the entire decorative portion is made of the same material. The transparent member has a decorative recess provided on the back surface of the transparent member along the edge of the colored core, and the visible portion is arranged in the decorative recess. 4. The radar cover according to any one of items 1 to 3. The radar cover according to any one of claims 1 to 3, wherein a surface of the visible portion on the transparent member side and a surface of the back connecting portion on the colored core side are flush with each other. A transparent member forming step of forming a transparent member having a concave portion provided on its back surface, a colored core forming step of forming a colored core accommodated in the concave portion of the transparent member, and the transparent member having the colored core accommodated in the concave portion. A method for manufacturing a radar cover, comprising: a supporting member forming step of forming a supporting member joined to the back surface of the member;
Prior to the supporting member forming step, a decorating portion forming step of forming a decorating portion for decorating along the edge of the colored core accommodated in the recess,
The decorating part is
a visible portion disposed laterally of the colored core along the edge of the colored core;
and a rear connecting portion that is joined to the visible portion and at least a portion of which is located on the rear side of the colored core. 3. The decorative portion has a plurality of the visible portions arranged along the edge of the single colored core, and a back connecting portion connected to the plurality of the visible portions. 7. The manufacturing method of the radar cover according to 6. In the decorating portion forming step, the decorating portion is formed by injection molding in which molten resin is supplied through a gate connected to a space for molding the back connecting portion of the decorating portion. The manufacturing method of the radar cover according to claim 6 or 7. providing a decorative recess along the edge of the recess in the transparent member forming step;
The radar cover according to any one of claims 6 to 8, wherein in the decorative portion forming step, the decorative portion is formed so that the visible portion is arranged in the decorative concave portion. Production method.

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