WO2021019822A1 - 成形品 - Google Patents

成形品 Download PDF

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Publication number
WO2021019822A1
WO2021019822A1 PCT/JP2020/010948 JP2020010948W WO2021019822A1 WO 2021019822 A1 WO2021019822 A1 WO 2021019822A1 JP 2020010948 W JP2020010948 W JP 2020010948W WO 2021019822 A1 WO2021019822 A1 WO 2021019822A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
resin member
molded product
front side
back side
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2020/010948
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
佐藤　崇
文仁 加賀谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alps Alpine Co Ltd
Original Assignee
Alps Alpine Co Ltd
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 Alps Alpine Co Ltd filed Critical Alps Alpine Co Ltd
Priority to JP2021536604A priority Critical patent/JP7150182B2/ja
Priority to DE112020003618.9T priority patent/DE112020003618B4/de
Priority to CN202080043280.8A priority patent/CN113993680B/zh
Publication of WO2021019822A1 publication Critical patent/WO2021019822A1/ja
Priority to US17/557,110 priority patent/US11745395B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/08—Signs, boards or panels, illuminated from behind the insignia using both translucent and non-translucent layers
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/06—Signs, boards or panels, illuminated from behind the insignia using individual cut-out symbols or cut-out silhouettes, e.g. perforated signs
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F21/00—Mobile visual advertising
    • G09F21/04—Mobile visual advertising by land vehicles
    • G09F21/049—Mobile visual advertising by land vehicles giving information to passengers inside the vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0025—Opaque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0026—Transparent

Definitions

  • the present invention relates to a molded product.
  • a transparent resin member having a certain thickness is provided on the design surface so as to present a visual sense of depth up to the design surface.
  • Technology is being used.
  • Patent Document 1 a two-color molded decorative product having a sense of depth is formed by providing an insert sheet having a decorative layer between the primary molding resin and the transparent secondary molding resin. The technology is disclosed.
  • the molded product of one embodiment is a molded product that displays an optical image that can be seen from the front side by transmitting light emitted from a light source provided on the back side, and has a shape corresponding to the light image in a plan view.
  • the member has a peripheral portion having a certain thickness and a thin portion which is provided inside the peripheral portion and is thinner than the peripheral portion.
  • a molded product capable of obtaining a visual sense of depth and suppressing the occurrence of various defects during molding.
  • FIG. 1 is an external perspective view of a molded product 100 according to an embodiment.
  • the molded product 100 shown in FIG. 1 is transmitted from the front side (Z-axis positive side) by transmitting light emitted from a light source 130 (for example, LED (light emitting diode)) provided on the back side (Z-axis negative side).
  • a light source 130 for example, LED (light emitting diode)
  • the molded product 100 is used for an interior part of an automobile (for example, a panel, a switch, etc.), and by displaying an optical image 12, the user is notified of an automobile function, a warning, or the like.
  • the molded product 100 includes a light-shielding resin member 110 and a transparent resin member 120, and has a two-layer structure composed of the light-shielding resin member 110 and the transparent resin member 120.
  • the light-shielding resin member 110 and the transparent resin member 120 are integrally formed by two-color molding.
  • the light-shielding resin member 110 is a member having a light-shielding property.
  • the light-shielding resin member 110 has a substantially rectangular parallelepiped shape as a whole.
  • the light-shielding resin member 110 has a panel portion 111 that is one step higher than the surroundings on the surface 110A, which is the front surface of the light-shielding resin member 110.
  • the panel portion 111 is formed with a light transmission hole 112 capable of transmitting the light emitted from the light source 130 from the back side of the panel portion 111 to the front side of the panel portion 111.
  • the light transmission hole 112 has a shape corresponding to the optical image 12 in a plan view from above (Z-axis positive direction).
  • the light transmission hole 112 transmits the light emitted from the light source 130 provided on the back side (Z-axis negative side) of the panel portion 111 from the back side of the panel portion 111 to the front side of the panel portion 111, thereby transmitting the light of the panel portion 111.
  • the optical image 12 that can be seen from the front side (the positive side of the Z axis) is displayed on the surface 111A of the panel unit 111.
  • the arrow shape is used as an example of the shape of the light transmitting hole 112, but the light transmitting hole 112 is not limited to this, and any shape can be adopted depending on the use of the molded product 100.
  • the light-shielding resin member 110 is formed by using a resin material having a light-shielding property.
  • the light-shielding resin member 110 is formed by using a synthetic resin of PC (polycarbonate resin) and ABS resin, which is colored black, as an example of a resin material having light-shielding property.
  • the light-shielding resin member 110 is entirely black and has light-shielding properties.
  • the transmissive resin member 120 is a substantially flat member having light transmissibility.
  • the transmissive resin member 120 is provided so as to overlap at least the light transmitting hole 112 on the front side (Z-axis positive side) of the panel portion 111 of the light-shielding resin member 110.
  • the surface 121 which is the front surface (Z-axis positive side) of the permeable resin member 120, is a smooth flat surface.
  • the permeable resin member 120 protects the surface of the panel portion 111 of the light-shielding resin member 110 and has a certain thickness, so that the molded product 100 is permeable when viewed from the front side (Z-axis positive side). The user can be presented with a visual sense of depth from the surface 121 of the resin member 120 to the surface of the panel portion 111.
  • the transmissive resin member 120 is formed by using a resin material having light transmissibility.
  • the transmissive resin member 120 is formed by using PC (polycarbonate resin) colored in a light gray smoke color as an example of a resin material having light transmissibility.
  • the transparent resin member 120 has a smoke color and light transmission as a whole.
  • the smoke color is not limited to the light gray of the present embodiment, but includes "color tone with suppressed visible light transmittance" in general, and the color tone and transmittance are arbitrarily selected to meet the visual requirements. It is possible.
  • the light source 130 when the light source 130 is turned on by external control, the light emitted from the light source 130 passes through the light transmission hole 112 formed in the panel portion 111, whereby the panel portion The optical image 12 is displayed on 111.
  • the optical image 12 displayed on the panel portion 111 is visually recognized by the user from the surface 121 of the transparent resin member 120 by transmitting through the transparent resin member 120.
  • the optical image 12 is hidden in the panel unit 111.
  • the transparent resin member 120 is colored in smoke color and the surface of the panel portion 111 is black, the transparent resin member is in a state where the optical image 12 is hidden.
  • the light transmission hole 112 is difficult to see from the surface 121 of the 120. That is, for the user, the panel unit 111 on which the optical image 12 is displayed is in a state called a so-called black-out or secret-until-lit in which nothing is displayed.
  • FIG. 2 is a cross-sectional view taken along the line AA of the molded product 100 shown in FIG.
  • the light-shielding resin member 110 has a dome-shaped convex portion 113 on the surface 111A and the central portion of the panel portion 111.
  • the light transmission hole 112 is formed in the convex portion 113.
  • the permeable resin member 120 has a flat surface 121 on the front side (positive side of the Z axis) and is in close contact with the convex portion 113 at the center of the back surface 122 which is the surface on the back side (negative side of the Z axis).
  • a curved concave portion 123 is formed.
  • the permeable resin member 120 has a peripheral portion 120A having a certain thickness due to the formation of the recess 123, and a thin portion 120B provided inside the peripheral portion 120A and thinner than the peripheral portion 120A. It has become.
  • the recess 123 has a curved surface shape, the thin portion 120B gradually becomes thinner toward the center of the recess 123.
  • the permeable resin member 120 has a peripheral portion 120A having a certain thickness.
  • the molded product 100 of the present embodiment gives a visual sense of depth from the surface 121 of the transparent resin member 120 to the surface 111A of the panel portion 111 when viewed from the front side (Z-axis positive side). , Can be presented to the user.
  • the visual sense of depth is more clearly felt when the edge portion and the side surface portion 126 of the peripheral portion 120A of the transparent resin member 120 are viewed from the front side and the oblique direction. Therefore, in the molded product 100 of the present embodiment, by setting the peripheral portion 120A having the edge portion and the side surface portion 126 to a constant thickness, it is easy to feel a visual sense of depth.
  • the surface 121 of the transparent resin member 120 is flat, it becomes difficult for the user to notice the change in thickness from the peripheral portion 120A even for the thin portion 120B. Therefore, it is possible to present the user with a sense of depth similar to that of the peripheral portion 120A.
  • the permeable resin member 120 has a thin portion 120B.
  • the molded product 100 of the present embodiment has a shorter cooling time during molding, a reduction in the amount of material used, and a sink mark, as compared with the conventional configuration in which the permeable resin member has a constant thickness as a whole. It is possible to exert effects such as suppressing the amount of generation of. Therefore, according to the molded product 100 of the present embodiment, it is possible to obtain a visual sense of depth and suppress the occurrence of various defects during molding.
  • the permeable resin member 120 is a primary molded part formed by using a primary mold.
  • the light-shielding resin member 110 is a secondary molded part formed so as to be overlapped with the transparent resin member 120 by using a secondary mold.
  • the transparent resin member 120 since the transparent resin member 120 is used as a primary molded part, the transparent resin member 120 can be molded independently, so that the degree of freedom in the molding conditions of the transparent resin member 120 can be increased. Can be enhanced. Therefore, the molded product 100 of the present embodiment can suppress the occurrence of sink marks and the like during molding of the transparent resin member 120, and can improve the appearance quality of the transparent resin member 120.
  • the transparent resin member 120 is formed by using a smoke-colored resin material
  • the light-shielding resin member 110 is formed by using a black resin material.
  • a gate portion 125 generated during molding of the transparent resin member 120 is left in the peripheral portion 120A on the back surface 122 of the transparent resin member 120.
  • the gate portion 125 is covered with the light-shielding resin member 110.
  • the transparent resin member 120 has a smoke color. Therefore, the gate portion 125 is difficult to see from the front side of the molded product 100. Therefore, in the molded product 100 of the present embodiment, the gate portion 125 may be left largely, that is, the degree of freedom in designing the gate portion 125 in the manufacturing process of the molded product 100 is increased, and the gate portion 125 is increased. Removal step can be omitted.
  • the light transmission hole 112 is formed in the convex portion 113 of the panel portion 111. That is, the light transmission hole 112 is formed in the panel portion 111 at a position facing the back surface of the thin portion 120B of the transparent resin member 120.
  • the molded product 100 of the present embodiment when the molded product 100 is viewed from the front side and from an oblique direction, light is refracted by the refractive index of the transparent resin member 120, and the optical image 12 deviates from the actual position.
  • the phenomenon of appearing in a vertical position can be alleviated by reducing the thickness of the molded product at the refracting portion.
  • FIG. 3 is a partially enlarged view of the molded product 100 shown in FIG.
  • the light transmission holes 112 are formed on the front side opening 112A formed on the front side (Z-axis positive side) of the boundary position P1 and on the back side (Z-axis negative side) of the boundary position P1. It is configured to have a back side opening 112B.
  • the permeable resin member 120 is formed by using a smoke-colored resin material
  • the light-shielding resin member 110 is formed by using a black resin material.
  • the front side opening 112A has a front side inclined surface 112Aa.
  • the front side inclined surface 112Aa is inclined toward the outside toward the front side (Z-axis positive side).
  • the front side opening 112A has a trapezoidal cross-sectional shape in which the opening width gradually increases toward the front side (Z-axis positive side).
  • the back side opening 112B has a back side inclined surface 112Ba.
  • the back side inclined surface 112Ba is inclined so as to be outward toward the back side (Z-axis negative side).
  • the back side opening 112B has a trapezoidal cross-sectional shape in which the opening width gradually increases toward the back side (Z-axis negative side).
  • the back side opening 112B is an air layer, but the present invention is not limited to this, and a light diffusing member 140 (see FIG. 2) that diffuses light is fitted into the back side opening 112B from the back side. You may.
  • the light diffusing member 140 may be formed in a state of being fitted into the back side opening 112B by three-color molding, or may be formed by another molding method and then fitted into the back side opening 112B. Good.
  • the light diffusing member 140 is formed by using a PC resin material or an acrylic resin material containing silicon beads.
  • the front side opening 112A and the back side opening 112B are formed when the light-shielding resin member 110 is molded. Since the resin material easily flows into both of the above and the above, for example, the rounding (short mold) of the edge portion 112C formed at the boundary position P1 of the light transmission hole 112 can be suppressed.
  • the minimum opening width W2 of the back side opening 112B (that is, the opening width W2 at the boundary position P1) is the minimum opening width W1 of the front side opening 112A (that is, the opening width W1 at the boundary position P1). ) Is larger than. That is, as shown by an arrow in FIG. 3, the back side inclined surface 112Ba of the back side opening 112B is offset to the outside in the opening width direction with respect to the front side inclined surface 112Aa of the front side opening 112A. As a result, a sharp edge portion 112C is formed at the boundary position P1 of the light transmission hole 112.
  • the molded product 100 of the present embodiment has the refractive index of the transparent resin member 120 (for example, 1.59 in the case of PC) and the refractive index of the air layer when the molded product 100 is viewed from the front side. It is possible to prevent the back side inclined surface 112Ba of the back side opening 112B from being visually recognized even when the light is refracted at the boundary position P1. Therefore, in the molded product 100 of the present embodiment, it is possible to prevent the edge portion 112C of the light transmission hole 112 from appearing blurry due to the back side inclined surface 112Ba.
  • the present invention can be used for interior parts for vehicles, but the present invention is not limited to this, and the present invention can be used for molded products for any purpose.
  • the present invention is not limited to a molded product in which the surface of the light-shielding resin member is black.
  • the surface of the light-shielding resin member is decorated with a decorative layer (for example, a decorative sheet). It can also be used for molded products.
  • the present invention is not limited to a molded product in which the transparent resin member is colored in smoke color, and for example, the present invention is also used in a molded product in which the transparent resin member is colored colorless or in a color other than smoke color. It is possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Marketing (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Laminated Bodies (AREA)
PCT/JP2020/010948 2019-07-29 2020-03-12 成形品 Ceased WO2021019822A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2021536604A JP7150182B2 (ja) 2019-07-29 2020-03-12 成形品
DE112020003618.9T DE112020003618B4 (de) 2019-07-29 2020-03-12 Formteil
CN202080043280.8A CN113993680B (zh) 2019-07-29 2020-03-12 成形品
US17/557,110 US11745395B2 (en) 2019-07-29 2021-12-21 Molded component

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019138988 2019-07-29
JP2019-138988 2019-07-29

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/557,110 Continuation US11745395B2 (en) 2019-07-29 2021-12-21 Molded component

Publications (1)

Publication Number Publication Date
WO2021019822A1 true WO2021019822A1 (ja) 2021-02-04

Family

ID=74230651

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/010948 Ceased WO2021019822A1 (ja) 2019-07-29 2020-03-12 成形品

Country Status (5)

Country Link
US (1) US11745395B2 (https=)
JP (1) JP7150182B2 (https=)
CN (1) CN113993680B (https=)
DE (1) DE112020003618B4 (https=)
WO (1) WO2021019822A1 (https=)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0262586U (https=) * 1988-10-31 1990-05-10
JPH0272489U (https=) * 1988-11-16 1990-06-01
JP2002301895A (ja) * 2001-04-04 2002-10-15 Mitsubishi Pencil Co Ltd 筆記具等のキャップ
JP2013506882A (ja) * 2009-10-09 2013-02-28 ブラウン ゲーエムベーハー 表示パネル及び該表示素子の半透明支持要素の製造
JP2012042679A (ja) * 2010-08-18 2012-03-01 Canon Inc レンズ鏡筒
US20130335997A1 (en) * 2012-06-19 2013-12-19 Colonial Plastics, Inc. Illuminated chromatic vehicle emblem
JP2014044375A (ja) * 2012-08-28 2014-03-13 Marusan Kinzoku:Kk 照明カバー部材

Also Published As

Publication number Publication date
US11745395B2 (en) 2023-09-05
DE112020003618B4 (de) 2024-01-25
JP7150182B2 (ja) 2022-10-07
CN113993680A (zh) 2022-01-28
US20220111564A1 (en) 2022-04-14
CN113993680B (zh) 2023-09-01
DE112020003618T5 (de) 2022-04-14
JPWO2021019822A1 (https=) 2021-02-04

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