WO2017038550A1 - Procédé de fabrication de couvercle de radar, et couvercle de radar - Google Patents

Procédé de fabrication de couvercle de radar, et couvercle de radar Download PDF

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Publication number
WO2017038550A1
WO2017038550A1 PCT/JP2016/074472 JP2016074472W WO2017038550A1 WO 2017038550 A1 WO2017038550 A1 WO 2017038550A1 JP 2016074472 W JP2016074472 W JP 2016074472W WO 2017038550 A1 WO2017038550 A1 WO 2017038550A1
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WO
WIPO (PCT)
Prior art keywords
transparent
emblem
coat layer
film
forming
Prior art date
Application number
PCT/JP2016/074472
Other languages
English (en)
Japanese (ja)
Inventor
信一 大竹
遼 太田
Original Assignee
株式会社ファルテック
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社ファルテック filed Critical 株式会社ファルテック
Publication of WO2017038550A1 publication Critical patent/WO2017038550A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/10—Glass or silica
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14—Metallic material, boron or silicon
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/027—Constructional details of housings, e.g. form, type, material or ruggedness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/52—Radiator or grille guards ; Radiator grilles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9327—Sensor installation details
    • G01S2013/93271—Sensor installation details in the front of the vehicles

Definitions

  • the present invention relates to a method for manufacturing a radar cover and a radar cover.
  • This application claims priority based on Japanese Patent Application No. 2015-170083 for which it applied to Japan on August 31, 2015, and uses the content here.
  • radar units that detect obstacles around the vehicle using radio waves such as millimeter waves are mounted on the vehicle.
  • a radar unit is disposed inside a radiator grill or emblem provided on the front surface of the vehicle, and transmits and receives radio waves that pass through the radiator grill.
  • the radiator grill and the emblem must be formed so as to transmit radio waves while suppressing attenuation of the radio waves.
  • radiator grille and emblem are arranged in the front of the vehicle, they are extremely important parts in the design of the vehicle, and often give a metallic glitter to improve the sense of quality and texture.
  • the plating layer does not transmit radio waves.
  • Patent Document 1 a technique of forming a vapor deposition layer of indium (In) or aluminum (Al) capable of transmitting radio waves has been used in order to impart metallic luster and allow radio waves to pass.
  • the vapor deposition layer and the topcoat layer are formed on the surface of the glitter member, and the glitter member is disposed in the recess so that the topcoat layer is in contact with the inner surface of the recess of the transparent member.
  • the top coat layer made of resin is distorted by heat when the base member is molded, and this may affect the visibility of the glitter region from the outside of the vehicle.
  • the present invention has been made in view of the above-described problems, and it is an object of the present invention to prevent the visibility of a bright area from being adversely affected by heat during manufacturing in a radar cover for a vehicle having radio wave transparency. To do.
  • the present invention adopts the following configuration as means for solving the above-described problems.
  • a method for manufacturing a radar cover is a method for manufacturing a radar cover that covers a radar unit that detects a surrounding situation of a vehicle, and forms a transparent layer having a recess (transparent layer forming step), Forming a fitting part having a convex part fitted into the concave part (fitting part forming step), having radio wave transmissivity, between the convex part of the fitting part and the concave part of the transparent layer; And forming a glittering film disposed on the convex portion of the fitting portion (a glittering film forming step), and patterning along the glittering film so as to cover the glittering film A layer is formed (transparent ceramic coat layer forming step), and the transparent layer and the fitting portion are fixed (fixing step).
  • the glittering film may be formed inside a vacuum chamber, and the transparent ceramic coat layer may be formed inside the vacuum chamber.
  • the glittering film may be formed by sputtering or vacuum deposition, and the transparent ceramic coating layer may be formed by sputtering or plasma polymerization.
  • a radar cover is a radar cover that covers a radar unit that detects a surrounding situation of a vehicle, and includes a transparent layer having a concave portion and a fitting portion having a convex portion that is fitted into the concave portion. And a glitter film disposed on the convex portion of the fitting portion between the convex portion of the fitting portion and the concave portion of the transparent layer, and having a radio wave transmission property, and the glitter property And a transparent ceramic coat layer patterned along the glitter film so as to cover the film.
  • a transparent ceramic coat layer having high heat resistance is formed so as to cover the glitter film instead of the top coat layer formed from a resin. For this reason, the transparent ceramic coat layer is not distorted by the heat at the time of manufacture unlike the top coat layer formed from the resin, and the heat at the time of manufacture can be prevented from affecting the visibility of the glitter region. .
  • FIG. 1 is a cross-sectional view of an emblem according to a first embodiment of the present invention. It is sectional drawing of the inner emblem with which the emblem which concerns on 1st Embodiment of this invention is provided. It is a schematic diagram for demonstrating the manufacturing process of the emblem which concerns on 1st Embodiment of this invention. It is a schematic diagram for demonstrating the manufacturing process of the emblem which concerns on 1st Embodiment of this invention. It is a schematic diagram for demonstrating the manufacturing process of the emblem which concerns on 1st Embodiment of this invention. It is a schematic diagram for demonstrating the manufacturing process of the emblem which concerns on 1st Embodiment of this invention.
  • FIG. 1 is a front view of a radiator grill 1 including an emblem 10 formed from a radar cover according to a first embodiment of the present invention.
  • FIG. 2 is an enlarged front view of the emblem 10 according to the first embodiment of the present invention.
  • FIG. 3A is a cross-sectional view of the emblem 10 according to the first embodiment of the present invention.
  • FIG. 3B is a cross-sectional view of the inner emblem 12 included in the emblem 10 according to the first embodiment of the present invention.
  • the radiator grill 1 is provided on the front surface of the vehicle so as to close the opening leading to the engine room of the vehicle.
  • the radiator grille 1 ensures ventilation to the engine room and prevents foreign matter from entering the engine room.
  • An emblem 10 is provided at the center of the radiator grill 1 so as to face the radar unit R disposed in the engine room.
  • the radar unit R includes, for example, a transmission unit that transmits millimeter waves, a reception unit that receives reflected waves, and a calculation unit that performs calculation processing.
  • the radar unit R transmits and receives radio waves that pass through the emblem 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 emblem 10 is arranged so as to cover the radar unit R when viewed from the front side of the vehicle.
  • the emblem 10 includes, as viewed from the front side of the vehicle, a bright area 10A representing a figure, a character, or the like indicating the emblem of the vehicle manufacturer, and a black area 10B that improves the visibility of the bright area 10A. It is a part that has.
  • the emblem 10 includes a transparent member 11 (transparent layer), an inner emblem 12, and a base member 13.
  • the transparent member 11 is a part formed of a substantially rectangular transparent material that is disposed on the outermost side of the vehicle.
  • the transparent member 11 has a smooth front surface (smooth surface) in order to increase the visibility of the inner emblem 12 from the outside of the vehicle.
  • a recess 11 a in which the inner emblem 12 is disposed is formed on the back surface of the transparent member 11.
  • a region where the concave portion 11 a is not provided on the surface on the back side of the transparent member 11 is a fixing surface to the base member 13.
  • the recess 11a is a part that houses the inner emblem 12, and allows the contained inner emblem 12 to be three-dimensionally visible from the front of the vehicle.
  • the recess 11a is provided along the shape of a figure such as an emblem of a vehicle manufacturer or a character.
  • the above-described glitter region 10A is formed.
  • the transparent member 11 is formed 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 11 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 inner emblem 12 includes a base portion 12a (fitting portion), a glittering film 12b, and a transparent ceramic coat layer 12c.
  • the base 12a is formed by injection molding or the like, and is formed of, for example, a synthetic resin such as ABS, PC, or PET.
  • the base portion 12 a has a convex shape that embeds the concave portion 11 a of the transparent member 11 and is fitted into the concave portion 11 a of the transparent member 11. That is, in the present embodiment, the base portion 12 a is formed from the convex portion itself that is fitted into the concave portion 11 a of the transparent member 11.
  • the glitter film 12b is a layer that is formed on the surface on the front side of the base portion 12a (the surface on the transparent member 11 side) and has a metallic glitter arranged so as to cover the base portion 12a.
  • the glitter film 12b is a metal thin film formed of indium (In) or aluminum (Al).
  • the glitter film 12b is an island-structured discontinuous film having a large number of minute gaps, and can transmit radio waves through these gaps.
  • the transparent ceramic coat layer 12c is a thin film formed of, for example, silicon oxide (SiOx), and prevents oxygen and moisture from entering the glittering film 12b.
  • a thin film formed of silicon oxide (SiOx) has high heat resistance and radio wave permeability as compared with a topcoat layer formed of a resin formed by clear coating or the like.
  • the transparent ceramic coat layer 12c is patterned along the glitter film 12b. That is, the transparent ceramic coat layer 12c is not formed in the black region 10B, but is formed only in the bright region 10A. Thus, by forming the transparent ceramic coat layer 12c only in the bright region 10A, the material for forming the transparent ceramic coat layer 12c can be reduced.
  • the transparent ceramic coat layer 12c is formed up to the black region 10B, the transparent ceramic coat layer 12c is interposed at the boundary between the transparent member 11 and the base member 13.
  • the bonding strength between the transparent member 11 and the base member 13 decreases. That is, the bonding strength between the transparent member 11 and the base member 13 can be improved by forming the transparent ceramic coat layer 12c only in the bright region 10A as in the present embodiment.
  • the glitter film 12b and the transparent ceramic coat layer 12c are formed between the inner surface of the recess 11a of the transparent member 11 and the surface of the base 12a. Further, the glitter film 12b is formed on the base portion 12a side, and the transparent ceramic coat layer 12c is formed on the transparent member 11 side.
  • the rear surface (surface on the base 12a side) of the glitter film 12b is directly fixed to the surface of the base 12a.
  • an undercoat layer may be formed on the back side of the glitter film 12b.
  • the base member 13 is a part fixed to the back side of the transparent member 11, and is formed of a black resin material.
  • the base member 13 has an engaging portion 13a that protrudes toward the engine room.
  • the engaging portion 13a has a tip portion formed in a claw shape, and the tip portion is locked to, for example, a radiator grill body.
  • the base member 13 fixed to the back surface of the transparent member 11 is visible from the outside of the transparent member 11 and forms the above-described black region 10B.
  • the base member 13 visually recognizes a region other than the glitter region 10A in black, and relatively improves the visibility of the glitter region 10A.
  • Base member 13 is made of ABS (acrylonitrile / butadiene / styrene copolymer synthetic resin), AES (acrylonitrile / ethylene / styrene copolymer synthetic resin), ASA (acrylonitrile / styrene / acrylate), PBT (polybutylene terephthalate), colored PC. And a synthetic resin such as PET (polyethylene terephthalate) or a composite resin thereof, and has a thickness of about 0.5 mm to 10 mm.
  • FIG. 4A to 4E are schematic views for explaining a method of manufacturing the emblem 10 according to the present embodiment.
  • the transparent member 11 is formed.
  • the process shown in FIG. 4A corresponds to the transparent layer forming process of the present embodiment.
  • the transparent member 11 is formed by injection molding.
  • the transparent member 11 having the recess 11a can be formed by injection molding. Therefore, it is not necessary to form the recess 11a by a post process. If necessary, the surface of the transparent member 11 (the surface facing the outside of the vehicle) or the entire surface may be subjected to a hard coat treatment for improving durability and the like.
  • the base 12a of the inner emblem 12 is formed.
  • the process shown in FIG. 4B corresponds to the fitting part forming process of this embodiment.
  • the base 12a is formed by injection molding.
  • a glittering film 12b is formed on the surface of the base 12a and a transparent ceramic coat layer 12c is formed.
  • the process shown in FIG. 4C corresponds to the glittering film forming process and the transparent ceramic coat layer forming process of the present embodiment.
  • the glitter film 12b is formed by sputtering or vacuum deposition in a vacuum atmosphere inside the vacuum chamber.
  • the transparent ceramic coat layer 12c is formed by sputtering (high frequency sputtering) or plasma polymerization in a vacuum atmosphere inside the vacuum chamber.
  • sputtering high frequency sputtering
  • plasma polymerization plasma polymerization in a vacuum atmosphere inside the vacuum chamber.
  • both the glitter film 12b and the transparent ceramic coat layer 12c are formed in a vacuum atmosphere inside the vacuum chamber.
  • the base film 12a is accommodated in the vacuum chamber, and the glittering film 12b and the transparent ceramic coat layer 12c can be continuously formed without taking out from the vacuum chamber.
  • the inner emblem 12 is formed by the process of forming the base portion 12a shown in FIG. 4B and the process of forming the glitter film 12b and the transparent ceramic coat layer 12c shown in FIG. 4C.
  • the formation process of the base 12a shown in FIG. 4B and the formation process of the glitter film 12b and the transparent ceramic coat layer 12c shown in FIG. 4C are performed after the formation process of the transparent member 11 shown in FIG. 4A. There is no need.
  • the manufacturing time of the emblem 10 can be shortened.
  • the inner emblem 12 is fitted into the recess 11 a of the transparent member 11.
  • the base member 13 is formed.
  • the process shown in FIG. 4E corresponds to the fixing process of this embodiment.
  • the transparent member 11 in which the inner emblem 12 is installed in the recess 11a is placed inside the injection mold, and insert molding is performed by injecting molten resin to the back side of the transparent member 11 (insert molding). Process).
  • the base member 13 is formed.
  • the base member 13 is welded to the transparent member 11 by heat at the time of insert molding, and is disposed so as to cover the inner emblem 12.
  • the glitter film 12b of the inner emblem 12 is fixed to the transparent member 11 together with the base 12a in a state of being in direct contact with the inner surface of the recess 11a.
  • the emblem 10 according to the present embodiment is manufactured through the processes as described above. According to the method for manufacturing the emblem 10 and the emblem 10 according to the present embodiment, the transparent ceramic coat layer 12c having high heat resistance is formed so as to cover the glitter film 12b instead of the top coat layer formed of resin. For this reason, the transparent ceramic coat layer 12c is not distorted by heat at the time of manufacture unlike a top coat layer formed from a resin, and the heat at the time of manufacture prevents the visibility of the glitter region 10A from being affected. Can do.
  • the base 12a is accommodated in the vacuum chamber, and the glitter film 12b and the transparent ceramic coat layer 12c can be continuously formed without taking out from the vacuum chamber. . Therefore, the process for forming the topcoat layer can be reduced.
  • the top coat layer takes time to form because it is necessary to apply the coating liquid and wait for the coating liquid to dry. According to the method for manufacturing the emblem 10 according to the present embodiment, the step of forming the topcoat layer can be reduced. For this reason, the emblem 10 can be formed in a short time and at a low cost.
  • the glitter film 12b is directly formed on the surface of the base 12a having the convex portion. For this reason, the step of forming an undercoat layer on the surface of the base portion 12a can be omitted, and the emblem 10 can be manufactured in a shorter time.
  • the insert molding which forms the base member 13 so that the inner emblem 12 may be covered with respect to the transparent member 11 by which the inner emblem 12 was fitted by the recessed part 11a is performed. . Thereby, the inner emblem 12 is fixed to the transparent member 11. For this reason, the inner emblem 12 can be fixed to the transparent member 11 without using an adhesive or the like. Furthermore, in this embodiment, since the topcoat layer is not formed between the glitter film 12b and the transparent member 11, the heat of the insert molding does not affect the visibility of the glitter region 10A.
  • the structure which made the inner emblem 12 the base member 13 and a different body was employ
  • the present embodiment is not limited to this, and the inner emblem 12 and the base member 13 may be integrally formed.
  • the inner emblem 12 and the base member 13 are integrated by forming a convex portion having the same shape as the base portion 12a on the base member 13 and forming a glittering film 12b on the surface of the convex portion. Can do.
  • the radar cover may be manufactured by welding the base member 13 on which the inner emblem 12 is formed to the transparent member 11.
  • FIG. 5A is a cross-sectional view of the emblem 20 according to the present embodiment.
  • FIG. 5B is a cross-sectional view of the inner emblem 22 included in the emblem 20 according to the present embodiment.
  • the emblem 20 according to the present embodiment includes a base portion 21 and an inner emblem 22.
  • the base portion 21 includes a transparent portion 21a (transparent layer) and a black portion 21b.
  • the transparent part 21a is formed to have the same shape by the same material as the transparent member 11 of the first embodiment.
  • a concave portion 21a1 in which the inner emblem 22 is disposed is formed on the back side of the transparent portion 21a.
  • region where the recessed part 21a1 is not provided in the surface on the back side of the transparent part 21a is a contact surface with the black part 21b.
  • the recess 21a1 is a part that accommodates the inner emblem 22, and makes it possible to visually recognize the accommodated inner emblem 22 from the front of the vehicle.
  • the recess 21a1 is provided along the shape of a figure such as an emblem of a vehicle maker or a character, like the recess 11a of the first embodiment.
  • the black portion 21b is a layer that is stacked on the back surface of the transparent portion 21a, and is a portion formed from a black resin material. As shown in FIGS. 5A and 5B, the black portion 21b is stacked on the transparent portion 21a so as to avoid the concave portion 21a1. That is, the black portion 21b has the opening 21b1 so that the concave portion 21a1 is exposed. Further, the openings 21b1 are stacked on the back side of the transparent portion 21a so as to overlap the recesses 21a1.
  • the black portion 21b is provided with a step portion 21b3 at the edge of the opening 21b1.
  • the step portion 21b3 is formed by thinning a region along the opening 21b1 of the black portion 21b with respect to other regions.
  • the step portion 21b3 is a portion to which a flange 22b described later of the inner emblem 22 is fixed. Moreover, the black part 21b has the engaging part 21b2 which protrudes in the engine room side.
  • the engaging portion 21b2 has a tip formed in a claw shape, and the tip is locked to, for example, a radiator grill body.
  • the black part 21b laminated on the back surface of the transparent part 21a is visible from the outside of the transparent part 21a, and forms the above-described black region 10B. That is, the black portion 21b makes the area other than the bright area 10A visible in black, and relatively improves the visibility of the bright area 10A.
  • the black portion 21b is composed of ABS (acrylonitrile / butadiene / styrene copolymer synthetic resin), AES (acrylonitrile / ethylene / styrene copolymer synthetic resin), ASA (acrylonitrile / styrene / acrylate), PBT (polybutylene terephthalate), colored PC. And a synthetic resin such as PET (polyethylene terephthalate) or a composite resin thereof, and has a thickness of about 0.5 mm to 10 mm.
  • the base portion 21 having the transparent portion 21a and the black portion 21b is formed by two-color molding.
  • the transparent portion 21a is formed first, and the black portion 21b is formed on the surface on the back side of the previously formed transparent portion 21a so as to avoid the recess 21a1.
  • the base part 21 in which the transparent part 21a and the black part 21b are integrated can be easily formed by two-color molding.
  • the method for forming the base portion 21 is not limited to two-color molding.
  • the base portion 21 can be formed by separately injection-molding the transparent portion 21a and the black portion 21b and fixing the separate transparent portion 21a and the black portion 21b by an adhesive or welding.
  • the inner emblem 22 includes a base portion 22a, a flange 22b, a glittering film 22c, and a transparent ceramic coat layer 22d.
  • the base 22a and the flange 22b are integrally formed by injection molding or the like, and are formed of a synthetic resin such as ABS, PC, or PET.
  • the base portion 22a is a convex portion that is embedded in the recess 21a1 by being installed in the recess 21a1.
  • the flange 22 b is formed so as to surround the base portion 22 a and forms an edge portion of the inner emblem 22.
  • the flange 22b is a part that abuts on a step portion 21b3 provided in the black portion 21b. As shown in FIG.
  • the base portion 22a is provided so as to protrude to the transparent portion 21a side from the flange 22b.
  • the fitting portion is formed by the base portion 22a and the flange 22b, and the base portion 22a corresponds to a convex portion.
  • the glitter film 22c is formed on the front side surface of the base portion 22a (the surface on the transparent portion 21a side) and is a layer having metal glitter.
  • the glitter film 22c is a metal thin film formed of indium (In) or aluminum (Al), like the glitter film 12b of the first embodiment.
  • the glittering film 22c is an island-structured discontinuous film having a large number of fine gaps, and is configured to allow radio waves to pass through these gaps.
  • the transparent ceramic coat layer 22d is a thin film formed of, for example, silicon oxide (SiOx), similarly to the transparent ceramic coat layer 12c of the first embodiment, and prevents oxygen and moisture from entering the glittering film 22c. To do.
  • a thin film formed of silicon oxide (SiOx) has high heat resistance and radio wave permeability as compared with a topcoat layer formed of a resin formed by clear coating or the like.
  • the transparent ceramic coat layer 22d is patterned along the glitter film 22c. That is, the transparent ceramic coat layer 22d is not formed in the black region 10B, but is formed only in the bright region 10A. Thus, by forming the transparent ceramic coat layer 22d only in the bright region 10A, the material for forming the transparent ceramic coat layer 22d can be reduced.
  • the transparent ceramic coat layer 22d is formed up to the black region 10B, the transparent ceramic coat layer 22d is interposed at the boundary between the transparent portion 21a and the black portion 21b. In this case, it becomes difficult to form the base portion 21 by two-color molding as described later. Further, since the transparent portion 21a and the black portion 21b are not in direct contact, the bonding strength between the transparent portion 21a and the black portion 21b is reduced. That is, the bonding strength between the transparent portion 21a and the black portion 21b can be improved by forming the transparent ceramic coat layer 22d only in the bright region 10A as in the present embodiment.
  • FIG. 6A to FIG. 6D are schematic views showing a manufacturing process of the emblem 20 according to the present embodiment.
  • the base portion 21 is formed.
  • the transparent part 21a is first formed by injection molding using a first mold (not shown), and then the black part 21b is stacked on the transparent part 21a by injection molding using a second mold (not shown). That is, the transparent portion 21a formed from a resin material and the black portion 21b formed from a resin material having different colors are integrally formed by two-color molding.
  • the transparent part 21a is formed by the first mold, the concave part 21a1 is formed with respect to the transparent part 21a.
  • the black portion 21b is formed by the second mold, the black portion 21b is formed while avoiding the concave portion 21a1.
  • the step of forming the transparent portion 21a corresponds to the transparent layer forming step.
  • the base 22a and the flange 22b of the inner emblem 22 are integrally formed by injection molding.
  • the process shown in FIG. 6B corresponds to a fitting part forming process.
  • a welding rib resin protrusion
  • the welding rib is, for example, a ring provided so as to surround the base portion 22a, and is a portion to be melted in order to weld the transparent portion 21a and the flange 22b in a later step.
  • a glittering film 22c and a transparent ceramic coat layer 22d are formed on the front side surface of the base portion 22a.
  • the process shown in FIG. 6C corresponds to a glitter film forming process and a transparent ceramic coat layer forming process.
  • the surface on the front side of the flange 22b (surface on the front side of the vehicle) is in contact with the black portion 21b, it cannot be visually recognized through the transparent portion 21a. For this reason, it is not necessary to form the glitter film 22c and the transparent ceramic coat layer 22d on the front surface of the flange 22b. Therefore, when the glitter film 22c and the transparent ceramic coat layer 22d are formed, the surface of the flange 22b may be masked.
  • the glittering film 22c and the transparent ceramic coat layer 22d are thin and can be peeled off before the subsequent transparent portion 21a and the flange 22b are welded. Therefore, the glittering film 22c and the transparent ceramic coat layer 22d can be formed without masking.
  • the inner emblem 22 is formed by the process of forming the base 22a and the flange 22b shown in FIG. 6B and the process of forming the glittering film 22c and the transparent ceramic coat layer 22d shown in FIG. 6C.
  • the formation process of the base 22a and the flange 22b shown in FIG. 6B and the formation process of the glitter film 22c and the transparent ceramic coat layer 22d shown in FIG. 6C are the same as the formation process of the base part 21 shown in FIG. 6A. There is no need to wait.
  • the manufacturing time of the emblem 20 can be shortened.
  • the inner emblem 22 is disposed so as to be accommodated in the recess 21 a 1 of the base portion 21.
  • the inner emblem 22 is disposed with respect to the recess 21a1 so that the flange 22b of the inner emblem 22 contacts the stepped portion 21b3 of the black portion 21b of the base portion 21.
  • the inner emblem 22 is welded to the black portion 21b by melting the surface of the flange 22b.
  • the step of fixing the inner emblem 22 shown in FIG. 6D to the base portion 21 corresponds to the fixing step.
  • the inner emblem 22 is welded to the black portion 21b by an ultrasonic welding method, a laser transmission welding method, or the like.
  • ultrasonic welding method for example, ultrasonic vibration is applied to the inner emblem 22.
  • the inner emblem 22 is formed of a material that transmits laser light.
  • the surface layer of the flange 22b is melted.
  • the inner emblem 22 is welded to the black portion 21b by cooling.
  • the emblem 20 according to the present embodiment is completed by performing a hard coat process on the surface of the transparent portion 21a as necessary.
  • the transparent ceramic coat layer 22d having high heat resistance is formed so as to cover the glitter film 22c instead of the top coat layer formed of resin. .
  • the transparent ceramic coat layer 22d is not distorted by the heat at the time of manufacture unlike the top coat layer formed from a resin, and the heat at the time of manufacture prevents the visibility of the glitter region 10A from being affected. Can do.
  • the black portions 21b are laminated and disposed so as to avoid the concave portions 21a1 of the transparent portions 21a. Therefore, the inner emblem 22 can be disposed in the recess 21a1 after the black portion 21b is stacked on the transparent portion 21a. Therefore, it is not necessary to embed the inner emblem 22 between the transparent portion 21a and the black portion 21b, and it is not necessary to perform insert molding.
  • the inner emblem 22 can be fixed to the black portion 21b by a welding method using ultrasonic waves or laser light. According to these methods, since only local heat input to the fixing portion is sufficient, it is possible to significantly reduce the thermal load on the inner emblem 22 as compared with the case where insert molding is performed.
  • the thermal load on the inner emblem 22 is significantly reduced, the inner emblem 22 is prevented from being deteriorated by being exposed to a high temperature, and the yield of the emblem 20 is increased. Can be improved.
  • the present invention is not limited to this, and a configuration in which the transparent ceramic coat layer 12c and the glitter film 12b are laminated on the inner surface of the recess 11a and then the base 12a is fitted may be adopted. Is possible.
  • the present invention is not limited to this, and a configuration in which the transparent ceramic coat layer 12c and the glitter film 22c are laminated on the inner surface of the recess 21a1 and then the base 22a is fitted may be adopted. Is possible.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Physical Vapour Deposition (AREA)
  • Details Of Aerials (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un couvercle de radar qui recouvre une unité de radar qui détecte l'état périphérique d'un véhicule, qui consiste : à former une couche transparente ayant une partie renfoncée ; à former une partie de prise ayant une partie en saillie qui entre en prise avec la partie renfoncée ; à former un film brillant qui est transparent aux ondes radio et est disposé sur la partie en saillie de la partie de prise, entre la partie en saillie de la partie de prise et la partie renfoncée de la couche transparente ; à former une couche de revêtement céramique transparente qui est modelée le long du le film brillant, de façon à recouvrir le film brillant ; et à fixer la couche transparente sur la partie de prise.
PCT/JP2016/074472 2015-08-31 2016-08-23 Procédé de fabrication de couvercle de radar, et couvercle de radar WO2017038550A1 (fr)

Applications Claiming Priority (2)

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JP2015170083A JP6343594B2 (ja) 2015-08-31 2015-08-31 レーダカバーの製造方法及びレーダカバー
JP2015-170083 2015-08-31

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WO2017038550A1 true WO2017038550A1 (fr) 2017-03-09

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KR101937464B1 (ko) * 2017-05-02 2019-01-11 주식회사 만도 레이돔 및 레이돔 제조 방법, 레이돔을 포함하는 레이더 및 레이더 제조 방법
EP3425730B1 (fr) * 2017-07-05 2021-09-01 Zanini Auto Grup, S.A. Radôme pour véhicules
JP7003827B2 (ja) * 2018-04-25 2022-01-21 豊田合成株式会社 光輝製品
JP7373457B2 (ja) * 2020-05-12 2023-11-02 ミネベアアクセスソリューションズ株式会社 加飾パネル構造及びその製造方法

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JP2008080712A (ja) * 2006-09-28 2008-04-10 Toyoda Gosei Co Ltd 光輝性及び不連続構造の金属皮膜を有する樹脂製品
JP2011046183A (ja) * 2009-08-28 2011-03-10 Faltec Co Ltd レドームの製造方法
JP2011077888A (ja) * 2009-09-30 2011-04-14 Faltec Co Ltd レドームの製造方法
JP2012112660A (ja) * 2010-11-19 2012-06-14 Faltec Co Ltd レドームの製造方法

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Publication number Priority date Publication date Assignee Title
JP5401132B2 (ja) * 2009-01-20 2014-01-29 信越ポリマー株式会社 電波透過性装飾部材およびその製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008080712A (ja) * 2006-09-28 2008-04-10 Toyoda Gosei Co Ltd 光輝性及び不連続構造の金属皮膜を有する樹脂製品
JP2011046183A (ja) * 2009-08-28 2011-03-10 Faltec Co Ltd レドームの製造方法
JP2011077888A (ja) * 2009-09-30 2011-04-14 Faltec Co Ltd レドームの製造方法
JP2012112660A (ja) * 2010-11-19 2012-06-14 Faltec Co Ltd レドームの製造方法

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