JP2018090187A - Radar cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent, in a radar cover having a transparent member with a support member joined to the rear face thereof, degradation of design, resulting from partial curving or bending of a line connecting the bottom parts of recesses formed on an outer edge part of the transparent member.SOLUTION: An outer edge part of a transparent member 2 has an L-type recess 2f and a J-type recess 2g continuously provided in a direction along the outer edge part, the L-type recess and J-type recess receding from the outer edge part toward a central part of the transparent member 2 and being different from each other in the shape of a cross-section orthogonal to a direction along the outer edge part. A bottom part 2f1 of the L-type recess 2f, in a direction toward the central part from the outer edge part of the transparent member 2, and a bottom part 2g2 of the J-type recess 2g, in the direction toward the central part from the outer edge part of the transparent member, are connected straight as viewed from a direction perpendicular to the surface of the transparent member 2.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a radar cover.

  In recent years, radar units that detect obstacles and the like around a vehicle using radio waves such as millimeter waves are mounted on the vehicle. Generally, a radar unit is installed in a state of being covered with a radar cover that is decorated with an emblem or the like. Such a radar unit transmits and receives radio waves transmitted through the radar cover. For this reason, it is necessary to form the radar cover so that it can transmit radio waves, as disclosed in Patent Document 1, for example.

JP 2009-18790 A

  By the way, the radar cover as described above has a transparent member (front member 1 in Patent Document 1) generally arranged toward the outside of the vehicle and a support member that supports the transparent member from the back side. The transparent member and the support member are integrated with each other by two-color molding of resin. In a radar cover having such a transparent member and a support member, for example, an undercut concave portion having a J-shaped cross section (patented on the outer edge portion of the transparent member, for example, in order to improve the bonding strength between the transparent member and the support member. The first engaging portion 11) in the document 1 is formed, and the transparent member and the transparent member are placed in a state where a part of the support member enters the recess (the first engaging portion 11 in the patent document 1). It is made to join. Such a structure is described in, for example, FIG.

  However, when the transparent member is formed by injection molding, the ejector pin may be pressed against the outer edge of the transparent member in order to remove the transparent member attached to the core mold. In this case, it is necessary to secure a space for pressing the ejector pin against the outer edge of the transparent member. For this reason, when the ejector pin is pressed against the outer edge portion of the transparent member, a concave portion that does not have the L-shaped undercut shape is formed in a part of the outer edge portion, and this L-shaped concave portion is formed. The ejector pin is pressed against the area.

  However, when the transparent member is viewed from the front side, the conventional radar cover has the position of the bottom of the recess having the above-described J-shaped undercut shape and the above-described L-shaped undercut shape. The position of the bottom of the non-recessed portion did not match in the direction from the outer edge of the transparent member toward the center. Since these concave portions are formed in the transparent member, the bottom portion of the concave portions can be visually recognized from the outside of the radar cover. At this time, if the position of the bottom of the recess having a J-shaped undercut shape and the position of the bottom of the recess having no L-shaped undercut shape are not coincident with each other, the whole is viewed from the outside. The bottom part does not appear to be connected continuously, and the line connecting the bottom parts of the recesses appears to be locally curved or bent. For example, when a colored layer is formed on the inner wall surface of the recess, the curve or bending of the line connecting the bottoms of the recess appears remarkably. As a result, the design of the radar cover is impaired.

  Such a radar cover is an important part for forming an appearance impression of a vehicle on which an emblem or the like is formed, and as described above, the position of the bottom of the concave portion having a J-shaped undercut shape in the transparent member It is desirable to avoid a decrease in designability due to the fact that the position of the bottom of the concave portion having no L-shaped undercut shape does not match.

  The present invention has been made in view of the above-described problems. In a radar cover having a transparent member having a support member bonded to the back surface, a line connecting the bottoms of the recesses formed on the outer edge of the transparent member is locally provided. An object is to prevent a decrease in designability by bending or bending.

  The present invention adopts the following configuration as means for solving the above-described problems.

  1st invention is a radar cover arrange | positioned on the path | route of the electromagnetic wave of the radar unit which detects the surrounding condition of a vehicle, While being joined to the plate-shaped transparent member which consists of resin, and the back surface of the said transparent member A support member that supports the transparent member, and the outer edge portion of the transparent member has a shape that is recessed from the outer edge portion toward the central portion of the transparent member and that is perpendicular to the direction along the outer edge portion. Different first concave portions and second concave portions are continuously provided in a direction along the outer edge portion, a bottom portion in a direction from the outer edge portion of the first concave portion toward the center portion, and the outer edge of the second concave portion. A configuration is adopted in which the bottom part in the direction from the part toward the center part is connected linearly as seen from the direction perpendicular to the surface of the transparent member.

  According to a second invention, in the first invention, the first recess is a recess having an L-shaped cross section opened to the back side of the transparent member, and the second recess is the transparent member. A configuration is adopted in which the shape of the cross section having a protruding portion that protrudes from the center portion to the outer edge portion side on the back surface side is a J-shaped recess.

  According to a third invention, in the first or second invention, a configuration is adopted in which the first concave portion is discretely provided at a plurality of locations in a direction along the outer edge portion.

  According to a fourth invention, in any one of the first to third inventions, a configuration is provided in which a colored layer formed on the inner wall surface of the first recess and the second recess is provided.

  In the present invention, the first concave portion and the second concave portion, which are recessed from the outer edge portion toward the central portion of the transparent member and have different cross-sectional shapes perpendicular to the direction along the outer edge portion, are formed on the outer edge portion of the transparent member. It is provided continuously in the direction along the outer edge. According to the present invention, the bottom in the direction from the outer edge of the first recess to the center and the bottom in the direction from the outer edge to the center of the second recess are viewed from the direction perpendicular to the surface of the transparent member. It is connected in a straight line. For this reason, according to this invention, it can prevent that the line which connects the bottom part of the recessed part formed in the outer edge part of a transparent member locally curves or bends. Therefore, according to the present invention, in a radar cover having a transparent member having a support member bonded to the back surface, the line connecting the bottoms of the recesses formed on the outer edge of the transparent member is locally curved or bent to thereby provide a design. It is possible to prevent a decrease in property.

It is a front view which shows typically the radar cover in one Embodiment of this invention. (A) is AA sectional drawing of FIG. 1, (b) is BB sectional drawing of FIG. It is an expanded sectional view of the L type crevice and J type crevice cut by the section orthogonal to the direction along the outer edge part of the transparent member with which the radar cover in one embodiment of the present invention is provided, and (a) is an expansion of the L type crevice. It is sectional drawing, (b) is a cross-sectional enlarged view of a J-shaped recessed part. It is a schematic diagram for demonstrating the manufacturing method of the radar cover in one Embodiment of this invention. It is a schematic diagram for demonstrating the manufacturing method of the radar cover in one Embodiment of this invention. It is a schematic diagram for demonstrating the manufacturing method of the radar cover in one Embodiment of this invention. It is a schematic diagram for demonstrating the manufacturing method of the radar cover in one Embodiment of this invention. It is a schematic diagram for demonstrating the manufacturing method of the radar cover in one Embodiment of this invention.

  Hereinafter, an embodiment of a radar cover according to the present invention will be described with reference to the drawings. In the following drawings, the scale of each member is appropriately changed in order to make each member a recognizable size.

  FIG. 1 is a front view schematically showing a radar cover 1 of the present embodiment. FIG. 2A is a cross-sectional view taken along the line AA in FIG. FIG. 2B is a cross-sectional view taken along the line BB in FIG. As shown in FIG. 1, the radar cover 1 according to the present embodiment includes an emblem E disposed in the center and a mesh-shaped outer design portion D provided around the emblem E. In FIG. 1, the emblem E and a part of the outer design portion D are shown in white, but the area shown in white is assumed to be silver in this embodiment. Moreover, the area | region shown with the dot pattern of the emblem E and the outer side design part D shall be black in this embodiment.

  As shown in FIGS. 2A and 2B, the radar cover 1 of the present embodiment is disposed so as to cover the radar unit X that detects the surrounding situation of the vehicle from the front side of the vehicle. It has transparency to the radio waves used in unit X. The radar cover 1 according to the present embodiment is disposed on the radio wave path of the radar unit X (a region where the radio wave emitted from the radar unit X is propagated). FIG. 2A and FIG. As shown to b), the transparent member 2, the printing layer 3, the coating layer 4 (colored layer), the inner core 5, and the support member 6 are provided.

  The transparent member 2 is formed of a transparent resin material in a plate shape, and is a member that is disposed on the outermost side of the vehicle among the constituent members of the radar cover 1. The transparent member 2 has a smooth surface on the front side in order to improve the visibility of the emblem E and the outer design portion D from the outside of the vehicle. In addition, a concave portion 2 a dug toward the front surface side is formed on the back surface (surface on the support member 6 side) of the transparent member 2. In the radar cover 1 of the present embodiment, the transparent member 2 includes, as the concave portion 2a, an inner core accommodating concave portion 2b in which the inner core 5 is accommodated, and a coating concave portion 2c in which the paint layer 4 is formed by coating the inner wall surface. It has.

  The inner core housing recess 2b has a circular shape avoiding the letter “F” when viewed from the front, and is formed in the center of the radar cover 1 where the emblem E is disposed. Such an inner core accommodating recess 2b accommodates the inner core 5 in a state where the inner core 5 is in contact with the inner wall surface.

  The coating recess 2c includes a frame-like portion 2d provided in a frame shape on the outer edge portion of the radar cover 1 when viewed from the front, and a mesh-like portion 2e provided in a mesh shape inside the frame-like portion 2d. Yes. In the coating recess 2c, a coating layer 4 is provided so as to cover the inner wall surface. In addition, a part of the support member 6 enters the inside of the coating recess 2c, and the coating layer 4 is covered from the back side by the support member 6.

  In addition, as shown in FIG. 1, in the present embodiment, the frame-like part 2d is provided in a plurality of L-shaped concave parts 2f (first concave parts) discretely provided in the direction along the outer edge part and other parts. It is comprised by J type recessed part 2g (2nd recessed part). In the present embodiment, as shown in FIG. 1, the radar cover 1 (transparent member 2) has a substantially rectangular shape when viewed from the front, and the center of the upper and lower edges of the transparent member 2 in the left-right direction. An L-shaped recess 2f is provided at the center and the central portion in the vertical direction of the left edge and the right edge of the transparent member 2. That is, in the present embodiment, four L-shaped recesses 2f are provided on the outer edge portion of the transparent member 2, and the other portions are J-shaped recesses 2g.

  3 is an enlarged cross-sectional view of the L-shaped recess 2f and the J-shaped recess 2g cut along a cross section orthogonal to the direction along the outer edge of the transparent member 2, and (a) is an enlarged cross-sectional view of the L-shaped recess 2f. (B) is a cross-sectional enlarged view of the J-shaped recess 2g. In FIG. 3, the printing layer 3, the paint layer 4, and the support member 6 are omitted. The L-shaped recess 2f is recessed from the outer edge (above FIG. 3 (a)) of the transparent member 2 toward the center (below FIG. 3 (a)) and at the back side of the transparent member 2 (FIG. 3 ( It has a cross-sectional shape opened to the right side of a). That is, the L-shaped recess 2 f is an L-shape in which a cross-sectional shape cut by a cross-section orthogonal to the direction along the outer edge of the transparent member 2 is opened to the back side of the transparent member 2. Such an L-shaped recess 2f does not have an undercut shape. Such an L-shaped recess 2f is a portion with which the ejector pin comes into contact when the transparent member 2 formed by injection molding is removed from the core mold 12 (see FIG. 4).

  The J-shaped recess 2g is recessed from the outer edge of the transparent member 2 (above FIG. 3A) toward the center (below FIG. 3A) and from the center to the back side of the transparent member 2. It has a cross-sectional shape having a protruding portion 2g1 protruding in the direction toward the outer edge side. In other words, the J-shaped recess 2g has a protruding portion 2g1 whose cross-sectional shape cut along a cross-section orthogonal to the direction along the outer edge of the transparent member 2 protrudes from the center to the outer edge on the back side of the transparent member 2. J type. Such a J-shaped recess 2g has a shape having an undercut shape.

  Thus, in the radar cover 1 of the present embodiment, the outer edge of the transparent member 2 has a shape of a cross section that is recessed from the outer edge toward the center of the transparent member 2 and that is orthogonal to the direction along the outer edge. Different L-shaped recesses 2f and J-shaped recesses 2g are continuously provided in the direction along the outer edge. In addition, as shown in FIG. 3, the depth dimension L1 of the L-shaped recess 2f and the J-shaped recess in the direction connecting the outer edge portion and the central portion (hereinafter referred to as the radial direction) when the transparent member 2 is viewed from the front. The depth dimension L2 of 2g is set to be the same. As a result, in the radar cover 1 of the present embodiment, the bottom portion 2f1 in the radial direction of the L-shaped recess 2f and the bottom portion 2g2 in the radial direction of the J-shaped recess 2g are from the direction perpendicular to the surface of the transparent member 2. It is connected linearly as seen. That is, in the radar cover 1 of the present embodiment, the line connecting the bottom 2f1 of the L-shaped recess 2f and the bottom 2g2 of the J-shaped recess 2g is between the bottom 2f1 of the L-shaped recess 2f and the bottom 2g2 of the J-shaped recess 2g. The boundary portion is not bent or curved locally but is linear.

  Returning to FIG. 2, in the present embodiment, a region where the concave portion 2 a on the surface (back surface) on the support member 6 side of the transparent member 2 is not provided is a print layer forming region R in which the print layer 3 is formed. . The print layer forming region R is a flat surface and is covered with the print layer 3 from the back side of the transparent member 2.

  Such a transparent member 2 is made of a 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 side surface of the transparent member 2 is subjected to a hard coat treatment for preventing scratches or a clear coat treatment of a urethane-based paint as necessary. In addition, if it is transparent synthetic resin provided with scratch resistance, these damage prevention processes are unnecessary.

  The print layer 3 is a thin film layer printed on the print layer formation region R of the transparent member 2 and is black as described above in the present embodiment. The print layer 3 is formed by transferring black ink to the print layer forming region R and drying the ink. The printing layer 3 can be formed by arranging, for example, a black resin ink capable of transmitting radio waves used in the radar unit X on the printing layer forming region R by a silk printing method and naturally drying the ink. . Such a print layer 3 is visible from the outside through the transparent member 2, and forms an area shown by the dot pattern shown in FIG.

  The paint layer 4 is a thin film layer formed by drying a silver paint that can transmit radio waves used in the radar unit X. In the present embodiment, the paint layer 4 has a silver color as described above. As shown in FIGS. 2A and 2B, the paint layer 4 is provided on the entire back surface of the transparent member 2 on which the printed layer 3 is formed, except for a region where the emblem E is formed. ing. That is, the paint layer 4 covers the surface of the print layer 3 on the support member 6 side except for the region where the emblem E is formed. This paint layer 4 can be formed by, for example, applying a paint containing a pearl pigment and drying it naturally. Such a coating layer 4 is visible from the outside through the transparent member 2 in the coating recess 2c, and forms a white area of the outer design portion D shown in FIG.

  The inner core 5 has a base portion made of a resin capable of transmitting radio waves used in the radar unit X, and a glittering film formed so as to cover the surface of the base portion. As the glitter film, for example, an indium film that is a discontinuous film in which a large number of gaps through which radio waves can be transmitted can be used. Such an indium film can be formed by, for example, a vacuum deposition method or a sputtering method. The inner core 5 may have a transparent top coat layer that covers the surface of the glitter film and an undercoat layer that covers the back surface of the glitter film. Such an inner core 5 is fitted and disposed in the inner core housing recess 2b of the transparent member 2 so that the glittering film faces the inner wall surface of the inner core housing recess 2b. Such an inner core 5 is visible from the outside through the transparent member 2 and forms a white region of the emblem E shown in FIG.

  The support member 6 is joined to the back surface of the transparent member 2 and supports the transparent member 2 and is made of a black resin material. The support member 6 has an engaging portion 6a that protrudes toward the engine room. The engaging portion 6a has a tip formed in a claw shape, and the tip is locked to, for example, a radiator grill body. Such a support member 6 includes 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 synthetic resin such as colored PC, PET (polyethylene terephthalate), or a composite resin thereof, and has a thickness of about 1.0 mm to 10 mm.

  Then, the manufacturing method of the radar cover 1 of this embodiment is demonstrated with reference to FIGS.

  First, as shown in FIG. 4, the transparent member 2 is formed. 4A is a cross-sectional view at the same position as FIG. 2A, and FIG. 4B is a cross-sectional view at the same position as FIG. 2B. Here, the transparent member 2 is formed by injection molding using the mold 10. The mold 10 includes a cavity mold 11 on the fixed side, a core mold 12 on the moving side, an ejector pin 13, and a slide core 14.

  In the present embodiment, the core mold 12 has a base 12a for forming the printing layer forming region R and a nest 12b for forming the recess 2a. The insert 12b is separated from the base 12a of the core mold 12, and protrudes from the surface of the base 12a toward the cavity mold 11 while being fixed to the base 12a. The ejector pin 13 is arranged so as to penetrate the core mold 12 and abut the end surface thereof against the formation position of the L-shaped recess 2 f of the transparent member 2. The ejector pin 13 can project with respect to the core mold 12. The slide core 14 is slidably attached to the core mold 12, is guided by an angular pin fixed to the cavity mold 11, and slides as the core mold 12 moves. Such a slide core 14 forms a J-shaped recess 2g having an undercut shape.

  Subsequently, as shown in FIG. 5, the printing layer 3 is formed. 5A is a cross-sectional view at the same position as FIG. 2A, and FIG. 5B is a cross-sectional view at the same position as FIG. 2B. Here, the printing layer 3 is formed by transferring ink to a printing layer forming region R that is a region excluding the concave portion 2a of the transparent member 2 by a printing method such as a silk printing method and drying the ink. .

  Subsequently, as shown in FIG. 6, a paint layer 4 is formed. 6A is a cross-sectional view at the same position as FIG. 2A, and FIG. 6B is a cross-sectional view at the same position as FIG. 2B. Here, for example, silver mica paint is applied to the back side of the transparent member 2 on which the printing layer 3 is formed in a state where the region M where the emblem E shown in FIG. The paint layer 4 is formed by drying the mica paint. In the coating layer 4 formed in this way, except for the region where the emblem E is formed, the coating layer 4 that covers the printing layer 3 and adheres directly to the inner wall surfaces of all the coating recesses 2c is formed.

  Then, as shown in FIG. 7, the inner core 5 is accommodated in the inner core accommodation recessed part 2b. FIG. 7 is a cross-sectional view at the same position as FIG. Here, the inner core 5 formed in parallel with the formation of the transparent member 2, the printing layer 3, or the paint layer 4 described above is accommodated in the inner core accommodating recess 2 b. The inner core 5 is formed by forming a glittering discontinuous metal film such as an indium layer on the base portion previously formed by injection molding by vacuum vapor deposition or sputtering. Note that a top coat layer and an undercoat layer are formed on the inner core 5 as necessary. Such an inner core 5 is accommodated in the inner core accommodating recess 2b with the glittering discontinuous metal film facing the inner wall surface side of the inner core accommodating recess 2b.

  Subsequently, as shown in FIG. 8, a support member 6 is formed. 8A is a cross-sectional view at the same position as FIG. 2A, and FIG. 8B is a cross-sectional view at the same position as FIG. 2B. Here, the transparent member 2 in which the inner core 5 is installed in the inner core housing recess 2b is placed inside an injection mold, and insert molding is performed by injecting molten resin to the back side of the transparent member 2. The support member 6 is formed. Such a support member 6 is welded to the transparent member 2 by heat at the time of insert molding, and is disposed so as to cover the inner core 5. Thereby, the inner core 5 is fixed to the transparent member 2.

  In the radar cover 1 of the present embodiment as described above, the outer edge portion of the transparent member 2 has a cross-sectional shape that is recessed from the outer edge portion toward the central portion of the transparent member 2 and that is orthogonal to the direction along the outer edge portion. Different L-shaped recesses 2f and J-shaped recesses 2g are continuously provided in the direction along the outer edge. Furthermore, in the radar cover 1 of the present embodiment, the bottom 2f1 in the radial direction of the L-shaped recess 2f and the bottom 2g2 in the radial direction of the J-shaped recess 2g are viewed from the direction perpendicular to the surface of the transparent member 2. Are connected in a straight line. For this reason, according to the radar cover 1 of the present embodiment, the line connecting the bottom 2f1 of the L-shaped recess 2f formed on the outer edge of the transparent member 2 and the bottom 2g2 of the J-shaped recess 2g is formed on the L-shaped recess 2f. It is possible to prevent local bending or bending at the boundary portion between the bottom 2f1 and the bottom 2g2 of the J-shaped recess 2g.

  On the other hand, in the conventional radar cover, as indicated by a virtual line in FIG. 3, the distance La from the outer peripheral surface of the transparent member 2 to the tip of the protruding portion 2g1 is made to coincide with the depth dimension L1 of the L-shaped recess 2f. A depth dimension L2 of the J-shaped recess 2g is set. As a result, the depth dimension L2 of the J-shaped recess 2g is larger than the depth dimension L1 of the L-shaped recess 2f, and the L-shaped recess at the boundary between the bottom 2f1 of the L-shaped recess 2f and the bottom 2g2 of the J-shaped recess 2g. A line connecting the bottom 2f1 of 2f and the bottom 2g2 of the J-shaped recess 2g is locally bent or bent.

  Thus, according to the radar cover 1 of the present embodiment, the line connecting the bottom 2f1 of the L-shaped recess 2f and the bottom 2g2 of the J-shaped recess 2g is the bottom of the L-shaped recess 2f and the bottom of the J-shaped recess 2g. It is possible to prevent local bending or bending at the boundary portion of 2g2, and it is possible to prevent a decrease in designability by locally bending or bending the line.

  Further, in the radar cover 1 of the present embodiment, the L-shaped recess 2 f is a recess having an L-shaped cross section opened to the back side of the transparent member 2, and the J-shaped recess 2 g is the back of the transparent member 2. The shape of the cross section having the protruding portion 2g1 protruding from the center portion to the outer edge portion side is a J-shaped recess. For this reason, since the ejector pin 13 can be brought into contact with the portion where the L-shaped recess 2f is formed, the transparent member 2 can be easily formed, and the transparent member 2 and the support member 6 are firmly formed by the J-shaped recess 2g. Can be joined.

  Further, in the radar cover 1 of the present embodiment, the L-shaped concave portions 2 f are provided at a plurality of locations discretely in the direction along the outer edge portion of the transparent member 2. For this reason, when removing the transparent member 2 from the core mold 12, a plurality of portions of the transparent member 2 can be pressed by the ejector pins 13, and the transparent member 2 can be easily detached from the core mold 12 without deformation. it can.

  Further, the radar cover 1 of the present embodiment includes the paint layer 4 as a colored layer formed on the inner wall surfaces of the L-shaped recess 2f and the J-shaped recess 2g. By providing such a paint layer 4, the paint layer 4 can be visually recognized from the outside of the radar cover 1, so that a pattern can be formed by the paint layer 4. Even in such a case, according to the radar cover 1 of the present embodiment, the line connecting the bottom 2f1 of the L-shaped recess 2f and the bottom 2g2 of the J-shaped recess 2g is prevented from being locally bent or bent. As a result, designability is not impaired.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the said embodiment. Various shapes, combinations, and the like of the constituent members shown in the above-described embodiments are examples, and various modifications can be made based on design requirements and the like without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the configuration in which the outer edge portion of the transparent member 2 is formed by the L-shaped recess 2f for contacting the ejector pin 13 and the J-shaped recess 2g engaged with the support member 6 has been described. . However, the present invention is not limited to this, and can be applied to all radar covers having a configuration in which concave portions having different cross-sectional shapes are continuously provided at the outer edge portion of the transparent member 2.

  Moreover, in the said embodiment, the inner core 5 was accommodated in the inner core accommodation recessed part 2b of the transparent member 2, and the structure which forms the emblem E by pinching this inner core 5 with the transparent member 2 and the supporting member 6 was demonstrated. However, the present invention is not limited to this, for example, a radar cover having a configuration in which a glittering discontinuous film is directly formed on the surface of the transparent member 2 or the support member 6 and the inner core 5 is omitted, and the radar cover It is also possible to apply to a manufacturing method.

  DESCRIPTION OF SYMBOLS 1 ... Radar cover, 2 ... Transparent member, 2a ... Recessed part, 2b ... Inner core accommodation recessed part, 2c ... Paint recessed part, 2d ... Frame-like part, 2e ... Reticulated part, 2f ... L-shaped recessed part ( First recess), 2f1 ... bottom, 2g ... J-shaped recess (second recess), 2g1 ... projection, 2g2 ... bottom, 3 ... printing layer, 4 ... paint layer (colored layer), 5 ...... Inner core, 6 ... support member, 10 ... mold, 11 ... cavity mold, 12 ... core mold, 13 ... ejector pin, 14 ... slide core, D ... outer design part, E ...... Emblem, R ... Printed layer formation area, X ... Radar unit

Claims (4)

A radar cover disposed on a radio wave path of a radar unit that detects the surroundings of a vehicle,
A plate-shaped transparent member made of resin, and a support member that is bonded to the back surface of the transparent member and supports the transparent member;
The outer edge of the transparent member includes a first recess and a second recess that are recessed from the outer edge toward the center of the transparent member and have different cross-sectional shapes perpendicular to the direction along the outer edge. Provided continuously in the direction along the section,
The bottom of the first recess in the direction from the outer edge to the center and the bottom of the second recess in the direction from the outer edge to the center are viewed from the direction perpendicular to the surface of the transparent member. A radar cover characterized by being connected in a straight line. The first recess is an L-shaped recess having a cross-sectional shape opened to the back side of the transparent member,
2. The radar cover according to claim 1, wherein the second recess has a J-shaped recess having a protruding portion protruding from the central portion to the outer edge portion on the back side of the transparent member. .   3. The radar cover according to claim 1, wherein the first recess is discretely provided at a plurality of locations in a direction along the outer edge portion. 4.   The radar cover according to any one of claims 1 to 3, further comprising a colored layer formed on inner wall surfaces of the first recess and the second recess.

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