JP6609542B2 - Radar cover and radar cover manufacturing method - Google Patents

Description

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

Japanese Patent Laid-Open No. 2006-80479

  By the way, the radar cover as described above generally includes a transparent member disposed toward the outside of the vehicle and a support member that supports the transparent member from the back side, and the transparent member and the support member are made of resin. The structure is integrated by two-color molding. For this reason, when a metal layer is formed between the transparent member and the support member, the metal layer can be visually recognized from the outside through the transparent member, and an emblem or a pattern can be formed by the metal layer.

  Moreover, for example, as shown in Patent Document 1, in order to give a three-dimensional effect to an emblem or the like, a recess is formed on the back surface of the transparent member, and a metal layer is disposed along the inner wall surface of the recess. There is. In such a case, when a character or a pattern is superimposed on the metal layer viewed from the front, a colored layer such as a printed layer may be formed on the bottom surface of the recess. However, if a colored layer is formed on the bottom surface of the concave portion, characters and patterns formed by the colored layer become planar, and the stereoscopic effect such as an emblem is impaired.

  The present invention has been made in view of the above-described problems, and in a radar cover having a recess on the back side of a transparent member, the character and pattern formed by the colored layer formed on the inner wall surface of the recess have a three-dimensional effect. The purpose is to grant.

  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, Comprising: It forms in the transparent member by which a recessed part is formed in the back side, and the inner wall surface of the said recessed part A colored layer, and a support member that is bonded to the back surface of the transparent member and supports the transparent member, wherein the transparent member is raised from the bottom of the recess and the tip surface is formed with the colored layer. A configuration is employed in which the projection has a colored layer forming surface.

  According to a second aspect of the present invention, in the first aspect of the present invention, the front end surface of the protrusion is bent and connected to the peripheral surface of the protrusion.

  According to a third invention, in the first or second invention, a configuration is adopted in which a front end surface of the protrusion is positioned on a front side of the transparent member with respect to a back surface of the transparent member.

  A fourth invention is a method of manufacturing a radar cover arranged on a radio wave path of a radar unit that detects a surrounding situation of a vehicle, wherein the radar cover includes a transparent member having a recess formed on the back side, A colored layer formed on the inner wall surface of the concave portion, and a support member that is bonded to the back surface of the transparent member and supports the transparent member, and that protrudes from the bottom of the concave portion and has a tip surface that is the colored layer A transparent member forming step of forming the transparent member having a protrusion formed as a colored layer forming surface, a colored layer forming step of forming a colored layer on the tip surface of the protrusion, and the support member. The structure which has a supporting member formation process to form is employ | adopted.

  According to a fifth invention, in the fourth invention, in the transparent member forming step, the transparent member is formed so that a tip end surface of the protrusion is bent with respect to a peripheral surface of the protrusion. adopt.

  6th invention is the said 4th or 5th invention, In the said transparent member formation process, the front end surface of the said protrusion is located in the front side of the said transparent member rather than the back surface of the said transparent member, A configuration in which the transparent member is formed is employed.

  According to a seventh invention, in any one of the fourth to sixth inventions, the colored layer forming step adopts a configuration in which the colored layer is formed by transferring ink by a pad printing method.

  According to the present invention, there is provided a protrusion that protrudes from the bottom of the concave portion formed on the back side of the transparent member and whose tip surface is a colored layer region in which a colored layer is formed. When the colored layer formed on the front end surface of such a protrusion is visually recognized from the outside, the periphery of the colored layer is visually recognized as bright or dark with respect to the colored layer, and the characters and patterns formed by the colored layer are displayed in three dimensions. be able to. Therefore, according to the present invention, in the radar cover having the recess on the back side of the transparent member, it is possible to give a stereoscopic effect to the characters and patterns formed by the colored layer formed on the inner wall surface of the recess.

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 a typical expanded sectional view containing a part of inner core accommodation recessed part with which the radar cover in one Embodiment of this invention is provided. 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. 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 and a method of manufacturing the 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 of this embodiment is arranged on the radio wave traveling path of the radar unit X (the region where the radio wave emitted from the radar unit X is propagated), and is shown in FIGS. As shown to (b), the transparent member 2, the printing layer 3 (colored layer), the coating material layer 4, the inner core 5, and the support member 6 are provided.

  The transparent member 2 is formed of a transparent resin material, 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 recess 2 a is formed on the back side surface of the transparent member 2 (the surface on the support member 6 side). 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 along the outer shape of the emblem E when viewed from the front, and is formed at 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.

  Moreover, in this embodiment, the area | region where the recessed part 2a of the surface (back surface) by the side of the supporting member 6 of the transparent member 2 is not provided is set as the printing layer formation area R in which the printing 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.

  FIG. 3 is a schematic enlarged cross-sectional view including a part of the inner core housing recess 2b. As shown in this figure, the transparent member 2 has a protrusion 2f that protrudes from the bottom 2b1 of the inner core housing recess 2b. The protrusion 2f is erected on the bottom 2b1 of the inner core housing recess 2b so as to protrude from the front side (left side in FIG. 3) to the back side (right side in FIG. 3) of the transparent member 2. The front end surface 2f1 of the protrusion 2f is a flat surface, and is a printing layer forming surface (colored layer forming surface) on which the printing layer 3 is formed.

  The front end surface 2f1 of the protrusion 2f is located on the front side of the transparent member 2 with respect to the printed layer forming region R which is the back surface of the transparent member 2. That is, the protruding dimension d1 of the bottom 2b1 of the inner core receiving recess 2b of the protrusion 2f is set smaller than the depth dimension d2 of the inner core receiving recess 2b. Further, the front end surface 2f1 of the protrusion 2f is bent and connected to the peripheral surface 2f2 of the protrusion 2f at an angle of approximately 90 °. That is, the boundary portion between the tip surface 2f1 and the peripheral surface 2f2 of the protrusion 2f is a so-called pin angle. The angle formed by the tip surface 2f1 and the peripheral surface 2f2 of the protrusion 2f is preferably 90 °, but may be about 93 ° in consideration of the draft during injection molding.

  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 the tip surface 2f1 of the protrusion 2f, 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 or the front end surface 2f1 of the protrusion 2f and drying the ink. The printing layer 3 (hereinafter referred to as the outer printing layer 3a) formed in the printing layer forming region R (back surface) of the transparent member 2 is a black resin that can transmit radio waves used in the radar unit X by, for example, silk printing. The ink can be formed by disposing the ink on the printing layer forming region R and naturally drying the ink. A printing layer 3 (hereinafter referred to as an emblem printing layer 3b (colored layer)) formed on the front end surface 2f1 of the protrusion 2f is, for example, a black resin that can transmit radio waves used in the radar unit X by a pad printing method. The ink can be formed by disposing the ink on the front end surface 2f1 of the protrusion 2f and naturally drying the ink.

  The outer printed layer 3a and the emblem printed layer 3b are visible from the outside through the transparent member 2, and form a region indicated by a dot pattern shown in FIG. For example, the outer printed layer 3a forms a portion excluding the net-like pattern of the outer design portion D. Further, the emblem printing layer 3b forms a character portion “F” of the emblem E.

  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. Further, the inner core 5 has a groove corresponding to the protrusion 2 f of the transparent member 2. In such an inner core 5, the glitter film is opposed to the inner wall surface of the inner core housing recess 2b, and the protrusion 2f is fitted into the groove, so that the inner core housing recess 2b of the transparent member 2 is fitted. The fitting is arranged. 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 and a core mold 12 on the moving side. Furthermore, in this embodiment, the core metal mold | die 12 has the base 12a which forms the printing layer formation area | region R, and the nest | insert 12b for forming the recessed part 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. By providing the insert 12b in the core mold 12 in this way, the surface of the base 12a and the surface of the insert 12b can be bent and connected, and the tip surface 2f1 and the peripheral surface 2f2 of the protrusion 2f are bent. The transparent member 2 connected to each other can be formed. Such a process shown in FIG. 4 forms a transparent member 2 having a protrusion 2f that protrudes from the bottom 2b1 of the inner core housing recess 2b and whose front end surface 2f1 is a printed layer forming surface on which the emblem printed layer 3b is formed. And corresponds to the transparent member forming step of the present invention.

  Subsequently, as shown in FIGS. 5 and 6, the print layer 3 is formed. 5A and 6 are cross-sectional views at the same position as FIG. 2A, and FIG. 5B is a cross-sectional view at the same position as FIG. First, as shown in FIGS. 5A and 5B, the ink is transferred to the printing layer forming region R of the transparent member 2 by a printing method such as a silk printing method, and the ink is dried. Thus, the outer printed layer 3a is formed.

  Next, as shown in FIG. 6, the emblem printing layer 3b is formed by transferring the ink to the front end surface 2f1 of the protrusion 2f by the pad printing method and drying the ink. Here, the ink is transferred from the metal mold to the silicon pad P, and further, the ink is transferred to the tip surface 2f1 by applying the pad P to the tip surface 2f1 of the protrusion 2f. At this time, it is desirable that the area of the ink pressed against the front end surface 2f1 is slightly larger than the area of the front end surface 2f1. As a result, the emblem printing layer 3b can be reliably formed on the entire front end surface 2f1. In the present embodiment, the front end surface 2f1 and the peripheral surface 2f2 of the protrusion 2f are bent and connected. For this reason, even when the area of the ink pressed against the front end surface 2f1 is slightly larger than the area of the front end surface 2f1, it is possible to prevent the ink from flowing around the peripheral surface 2f2. Even if the ink adheres to the peripheral surface 2f2 of the protrusion 2f, the peripheral surface 2f2 is substantially parallel to the viewing direction of the person who is visually recognized from the outside. Hard to see. For this reason, the outline of the character “F” included in the emblem E can be clarified. The process shown in FIG. 6 is a process for forming the emblem printing layer 3b on the tip surface 2f1 of the protrusion 2f, and corresponds to the colored layer forming process of the present invention.

  Subsequently, as shown in FIG. 7, a paint layer 4 is formed. 7A is a cross-sectional view at the same position as FIG. 2A, and FIG. 7B 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 a mask is applied to 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. 8, the inner core 5 is accommodated in the inner core accommodation recessed part 2b. FIG. 8 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. 9, a support member 6 is formed. 9A is a cross-sectional view at the same position as FIG. 2A, and FIG. 9B 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. The process shown in FIG. 9 is a process for forming the support member 6 and corresponds to the support member forming process of the present invention.

  According to the radar cover 1 and the method of manufacturing the radar cover 1 of the present embodiment as described above, the inner core accommodating recess 2b formed on the back side of the transparent member 2 protrudes from the bottom 2b1, and the front end surface 2f1 is the emblem printing layer. A protrusion 2f is provided as a print layer region in which 3b is formed. When the emblem printing layer 3b formed on the front end surface 2f1 of the protrusion 2f is viewed from the outside, the periphery of the emblem printing layer 3b is visually recognized as bright or dark with respect to the emblem printing layer 3b, and is formed by the emblem printing layer 3b. The displayed character “F” can be shown three-dimensionally. Therefore, according to the radar cover 1 and the method of manufacturing the radar cover 1 of the present embodiment, it is possible to give a stereoscopic effect to the characters formed by the emblem printing layer 3b formed on the inner wall surface of the inner core housing recess 2b. Become.

  Further, in the radar cover 1 and the method for manufacturing the radar cover 1 of the present embodiment, the tip surface 2f1 and the peripheral surface 2f2 of the protrusion 2f are bent and connected. For this reason, even if the ink forming the emblem printing layer 3b adheres to the peripheral surface 2f2 of the protrusion 2f, the peripheral surface 2f2 is substantially parallel to the viewing direction of the person who visually recognizes from the outside. Ink attached to the surface 2f2 is difficult to be visually recognized. For this reason, according to the radar cover 1 and the method of manufacturing the radar cover 1 of the present embodiment, the outline of the letter “F” included in the emblem E can be clarified.

  Further, in the radar cover 1 and the method for manufacturing the radar cover 1 of the present embodiment, the front end surface 2f1 of the protrusion 2f is positioned on the front side of the transparent member 2 with respect to the print layer forming region R that is the back surface of the transparent member 2. doing. Thus, in the radar cover 1 and the method for manufacturing the radar cover 1 according to the present embodiment, it is not necessary to set the front end surface 2f1 of the protrusion 2f and the back surface of the transparent member 2 flush with each other. Since the visual recognition state of the letter “F” slightly changes depending on the protrusion dimension d1 of the protrusion 2f, according to the present embodiment, the stereoscopic effect required for the letter “F” is obtained regardless of the position of the back surface of the transparent member 2. The front end surface 2f1 of the protrusion 2f can be disposed at a suitable position.

  Further, in the method for manufacturing the radar cover 1 of the present embodiment, the ink for forming the emblem printing layer 3b is transferred to the tip surface 2f1 of the protrusion 2f by the pad printing method. For this reason, it is possible to easily transfer the ink to the front end surface 2f1 of the protrusion 2f.

  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 colored layer is the emblem printing layer 3b has been described. However, the present invention is not limited to this, and the colored layer can be formed by painting or the like.

  Moreover, in the said embodiment, the transparent member 2 demonstrated the structure which has the inner core accommodation recessed part 2b and the coating recessed part 2c as the recessed part 2a, and also the coating recessed part 2c has the frame-shaped part 2d and the net-like part 2e. . However, the present invention is not limited to this, and can be applied to any radar cover provided with a transparent member having a concave portion in which a colored layer is formed on the inner wall surface, and a method for manufacturing the radar cover. It is.

  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 ... Concave part, 2b ... Inner core accommodation recessed part, 2c ... Paint recessed part, 2d ... Frame-like part, 2e ... Net-like part, 2f ... Projection part, 2f1 ...... Tip surface, 2f2 ... Surface, 3 ... Print layer, 3a ... Outer print layer, 3b ... Emblem print layer (colored layer), 4 ... Paint layer, 5 ... Inner core, 6 ... Support Member, D ... Outer design part, E ... Emblem, R ... Print layer formation area, X ... Radar unit

Claims (7)

A radar cover arranged on a radio wave path of a radar unit for detecting a surrounding situation of the vehicle,
A transparent member having a recess formed on the back side, a colored layer formed on the inner wall surface of the recess, an inner core accommodated in the recess of the transparent member, and the transparent member joined to the back surface of the transparent member A support member for supporting the member,
The transparent member may have a protrusion raised and the tip surface is a colored layer forming surface formed of the colored layer from the bottom of the recess,
The inner core has a groove portion into which the protrusion is fitted,
The radar cover according to claim 1, wherein the inner core is housed in the recess so that the protrusion is fitted into the groove .   The radar cover according to claim 1, wherein a front end surface of the protrusion is bent and connected to a peripheral surface of the protrusion.   3. The radar cover according to claim 1, wherein a front end surface of the protrusion is located on a front side of the transparent member with respect to a back surface of the transparent member. A method of manufacturing a radar cover arranged on a radio wave path of a radar unit for detecting a surrounding situation of a vehicle,
The radar cover is bonded to a transparent member having a recess formed on the back side, a colored layer formed on an inner wall surface of the recess, an inner core accommodated in the recess of the transparent member, and a back surface of the transparent member. And a support member that supports the transparent member,
A transparent member forming step of forming the transparent member having a protrusion protruding from the bottom of the concave portion and having a tip surface formed as a colored layer forming surface on which the colored layer is formed;
A colored layer forming step of forming a colored layer on the tip surface of the protrusion;
An inner core forming step of forming the inner core having a groove into which the protrusion is fitted;
An inner core accommodating step of accommodating the inner core in the recess so that the protrusion is fitted into the groove,
A method for manufacturing a radar cover, comprising: a support member forming step for forming the support member.   5. The method of manufacturing a radar cover according to claim 4, wherein, in the transparent member forming step, the transparent member is formed such that a front end surface of the protrusion is bent with respect to a peripheral surface of the protrusion.   The said transparent member is formed in the said transparent member formation process, The said transparent member is formed so that the front end surface of the said protrusion may be located in the front side of the said transparent member rather than the back surface of the said transparent member. The manufacturing method of the radar cover of description.   The method for manufacturing a radar cover according to any one of claims 4 to 6, wherein in the colored layer forming step, the colored layer is formed by transferring ink by a pad printing method.

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