WO2021240793A1 - Interior component for automobile - Google Patents

Interior component for automobile Download PDF

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Publication number
WO2021240793A1
WO2021240793A1 PCT/JP2020/021370 JP2020021370W WO2021240793A1 WO 2021240793 A1 WO2021240793 A1 WO 2021240793A1 JP 2020021370 W JP2020021370 W JP 2020021370W WO 2021240793 A1 WO2021240793 A1 WO 2021240793A1
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WO
WIPO (PCT)
Prior art keywords
cushion material
automobile
injection molding
cushion
quilting
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PCT/JP2020/021370
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French (fr)
Japanese (ja)
Inventor
広道 中川
伸明 関
Original Assignee
河西工業株式会社
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Application filed by 河西工業株式会社 filed Critical 河西工業株式会社
Priority to PCT/JP2020/021370 priority Critical patent/WO2021240793A1/en
Publication of WO2021240793A1 publication Critical patent/WO2021240793A1/en

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    • 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

Definitions

  • the present invention relates to automobile interior parts such as door trims attached to the inner surface of an automobile body panel, and is particularly suitable for producing automobile interior parts with a quilting pattern in a short time and at low cost.
  • Patent Document 1 As an interior part for an automobile of this kind, for example, it is disclosed in Patent Document 1.
  • the automobile interior part (1) of the same document 1 has a structure in which a skin material (3) is bonded to the surface of a resin core material (2), and the skin material (3) is quilted. Therefore, a quilting pattern by stitch (4) is attached.
  • 5 (a) to 5 (c) are explanatory views of the manufacturing process of the conventional interior parts for automobiles with a quilting pattern.
  • Step 1 in FIG. 5A is a quilting sewing step.
  • a quilting pattern (stitch) is formed by adhering the mount 103 to the back surface of the cushion material 101 with an adhesive 102 and then sewing the adhesive product composed of the cushion material 101 and the mount 103. Create a material with a quilt (hereinafter referred to as "quilting material").
  • a non-woven fabric 104 is bonded to the surface of the cushion material 101. The nonwoven fabric 104 makes it difficult for the skin material 106 to come off when the skin material 106 (see FIG. 3B) is attached to the surface of the cushion material 101 in a later step.
  • Step 2 in FIG. 5 (b) is a skin pasting step.
  • the skin material 106 is bonded to the surface of the quilting material produced in step 1 (specifically, the surface of the skin material 101 in which the quilting pattern appears) with the adhesive 105.
  • the sewing thread 107 constituting the quilting pattern is hidden by the skin material 106 and cannot be seen, and only the unevenness 108 due to sewing appears on the surface of the quilting material.
  • Step 3 in FIG. 5 (c) is a partial sewing step.
  • this partial sewing step so-called partial sewing is performed in which sewing is performed only on the concave portion 108A of the unevenness 108 as described above.
  • the sewing thread 109 used in this partial sewing is visible from the outside as a decoration.
  • Step 4 in FIG. 5 (d) is a core material applying step.
  • the resin core material 111 is bonded to the back surface of the material after partial sewing (specifically, the back surface of the mount 103) with the adhesive 110, so that the automobile with a quilting pattern as a final product is used. Obtain the interior component P3 for use.
  • the manufacturing process specifically, both the skin pasting step (step 2) and the core material applying step (step 4). Since the adhesives 105 and 110 are used in the above, the coating, drying, and crimping operations of the adhesive are required in each process, so that the manufacturing time has to be long and the manufacturing cost has to be high. In addition, since it is necessary to perform time-consuming quilting sewing work, there is a problem that it is difficult to manufacture this kind of interior parts for automobiles with a quilting pattern in a short time and at low cost.
  • the present invention has been made to solve the above problems, and an object of the present invention is to provide an automobile interior part suitable for manufacturing an automobile interior part having a quilting pattern in a short time and at a low cost. be.
  • the first aspect of the present invention is an automobile interior component attached to the inner surface of an automobile body panel, which is an elastic cushion material and a skin material bonded to the surface of the cushion material. And a resin core material bonded to the back surface of the cushion material by injection molding, the cushion material has irregularities formed in advance on the surface thereof, and the skin material has the above-mentioned surface surface. It is characterized by having a quilting-like pattern corresponding to unevenness.
  • the second aspect of the present invention is an interior component for an automobile mounted on the inner surface of an automobile body panel, which is an elastic cushion material, a skin material bonded to the surface of the cushion material, and a back surface of the cushion material.
  • the cushioning material and the skin material before injection molding are provided with a resin core material joined by injection molding, and the molding surface of the mold used in the injection molding is provided with irregularities.
  • the unevenness is transferred to the cushion material and the skin material at the time of injection molding, so that the cushion material and the skin material are curved along the unevenness and the surface of the skin material is formed. Is characterized in that a quilting-like pattern corresponding to the unevenness is formed.
  • the resin core material has a plurality of holes formed in accordance with the positions of the concave portions of the unevenness, and the resin core is formed by sewing threads passed through the plurality of holes. It may be characterized in that the material, the cushion material, and the skin material are sewn together, and a sewn design pattern including the seams of the sewn material is provided in the quilting-like pattern.
  • the surface of the cushion material that comes into contact with the molten resin when the resin core material is injection-molded is impregnated with the molten resin on the cushion material side and the molten resin thereof. It may be characterized by providing a barrier layer for preventing the cushioning material from melting due to heat.
  • the resin core material is bonded to the back surface of the cushion material by injection molding, no adhesive is required for the bonding, and the use of a mold having irregularities on the molded surface.
  • a cushioning material having irregularities on the surface a quilting-like pattern corresponding to the irregularities is provided on the surface of the skin material, so that the conventional application, drying, and crimping work of an adhesive can be abolished.
  • the time-consuming quilting sewing work can be eliminated, it is possible to provide an automobile interior part suitable for producing this kind of quilted patterned automobile interior part in a short time and at low cost.
  • FIG. 1D is an explanatory diagram of an example in which a barrier layer is provided in an automobile interior part (automobile interior part of the second embodiment) of FIG. 2D.
  • FIG. 2 is an explanatory diagram of an example in which a barrier layer is provided in an automobile interior part (automobile interior part of the second embodiment) of FIG. 2D.
  • (A) to (c) are explanatory views of the manufacturing process of the conventional interior parts for automobiles with a quilting pattern.
  • 1 (a) to 1 (d) are explanatory views of a manufacturing process of an automobile interior part to which the first invention is applied.
  • the automobile interior component P1 to which the first invention is applied (hereinafter referred to as “the automobile interior component P1 of the first embodiment”) is attached to the inner surface of an automobile body panel (not shown).
  • Parts for example, door trim
  • a cushion material 1A having elasticity a cushion material 1A having elasticity
  • a skin material 2A bonded to the surface of the cushion material 1A bonded to the surface of the cushion material 1A
  • a resin core material 3A bonded to the back surface of the cushion material 1A by injection molding.
  • the cushion material 1A has a pre-formed unevenness 4 on its surface (see FIG. (A))
  • the skin material 2A has a quilting-like pattern corresponding to the unevenness 4 on its surface. It has PT1.
  • the resin core material 3A has a plurality of holes H formed in accordance with the positions of the recesses 41 of the unevenness 4.
  • the resin core material 3A, the cushion material 1A, and the skin material 2A are sewn together by the sewing thread 7 passed through the plurality of holes H, and the sewing design pattern PT2 composed of the seams of the stitches is the quilting-like pattern. It is provided in PT1.
  • the automobile interior component P1 of the first embodiment having the above configuration has a preparation process of FIG. 1 (a), an injection molding process of FIG. 1 (b), a product taking-out process of FIG. 1 (c), and the figure of FIG. It can be manufactured by the partial sewing process of (d).
  • the details of each process are as follows.
  • a cushion material 1A having an uneven surface 4 on the surface (hereinafter referred to as “shaped cushion material 1A”) is prepared as shown in FIG. 1 (a).
  • the skin material 2A is joined to the uneven surface (the surface having the unevenness 4) of the cushion material 1A via the adhesive 8.
  • the skin material 2A joined in this way is attached along the unevenness 4 of the cushion material 1A, so that the surface of the skin material 2A is provided with a quilting pattern PT1 corresponding to the unevenness 4 of the cushion material 1A. There is.
  • FIG. 1 (b) Injection molding process of FIG. 1 (b) >>
  • a molding die M1 composed of a first mold M11 (upper mold) and a second mold M12 (lower mold) is used, and a shape is formed between the two molds M11 and M12.
  • the cushion material 1A is arranged and the mold is closed and the mold is fastened
  • the molten resin is injected into a cavity (not shown) formed between the second mold M12 and the shaped cushion material 1A.
  • a resin core material 3A see FIGS. (C) and (d) joined by injection molding is formed on the back surface of the cushion material 1A.
  • a plurality of protrusions T are provided on the molding surface of the second mold M12, that is, on the surface side facing the back surface of the shaped cushion material 1A.
  • the resin core material 3A formed by injection molding has the concave portions 41 of the unevenness 4.
  • a plurality of holes H (see FIG. 1 (c)) formed according to the position are provided.
  • Partial sewing process of FIG. 1 (d) >> In the partial sewing step of FIG. 1 (d), the resin core material 3A, the shaped cushion material 1A, and the skin material 2A are sewn together by the sewing thread 7 passed through the plurality of holes H as shown in FIG. 1 (d). .. As a result, the sewing design pattern PT2 composed of the stitches of the stitch is provided in the above-mentioned quilting-like pattern PT1.
  • the shaped cushion material 1A and the skin material 2A may be joined by melting the shaped cushion material 1A.
  • 2 (a) to 2 (d) are explanatory views of a second manufacturing process of an interior part for an automobile to which the present invention is applied.
  • the second automobile interior component P2 to which the present invention is applied (hereinafter referred to as “the automobile interior component P2 of the second embodiment”) is attached to the inner surface of an automobile body panel (not shown).
  • a door trim having an elastic cushion material 1B, a skin material 2A bonded to the front surface of the cushion material 1B, and a resin core material 3B bonded to the back surface of the cushion material 1B by injection molding. There is.
  • the cushion material 1B and the skin material 2B before injection molding have a flat plate shape (see FIG. 2A), and the molding of the mold used in injection molding is performed.
  • a concavo-convex RO (see FIG. 3B) is provided on the surface, and the concavo-convex RO is transferred to the cushion material 1B and the skin material 2B during the injection molding, whereby the cushion material 1B and the cushion material 1B and the surface material 2B are transferred.
  • the skin material 2B is curved along the uneven RO, and the quilting pattern PT1 corresponding to the uneven RO is formed on the surface of the skin material 2B.
  • the resin core material 3B has a plurality of holes formed in accordance with the positions of the concave portions RO1 of the concave-convex RO. Has H.
  • the resin core material 3B, the cushion material 1B, and the skin material 2B are sewn to each other by the sewing thread 7 passed through the plurality of holes H, and the sewing design pattern PT2 composed of the seams of the stitches is the quilting-like pattern. It is provided in PT1.
  • the automobile interior component P2 according to the second embodiment having the above configuration includes the preparation process of FIG. 2 (a), the injection molding process of FIG. 2 (b), the product taking-out process of FIG. 2 (c), and the figure of FIG. It can be manufactured by the partial sewing process of (d).
  • the details of each process are as follows.
  • a flat plate-shaped cushion material 1B (hereinafter referred to as “initial flat plate-shaped cushioning material 1B”) having no unevenness on the surface is prepared as shown in FIG. 2A.
  • a skin material 2B attached by melting the initial flat plate cushion material 1 is bonded to the surface of the initial flat plate cushion material 1B, and an adhesive is used in joining the initial flat plate cushion material 1B and the skin material 2B.
  • an adhesive is used in joining the initial flat plate cushion material 1B and the skin material 2B.
  • ⁇ Injection molding process of FIG. 2B In the injection molding step of FIG. 2B, a molding die M2 composed of a first mold M21 (upper mold) and a second mold M22 (lower mold) is used, and an initial flat plate is used between the two molds M21 and M22.
  • the shaped cushion material 1B is arranged, and after the mold is closed and the mold is fastened, the molten resin is injected into a cavity (not shown) formed between the second mold M22 and the initial flat plate cushion material 1B.
  • a resin core material 3B (see FIG. 3C) joined by injection molding is formed on the back surface of the initial flat plate-shaped cushion material 1B.
  • the molding surface of the molding die M2 used in the injection molding specifically, the molding surface of the first mold M21 facing the front surface side of the initial flat plate cushion material 1, and the back surface of the initial flat plate cushion material 1.
  • a concavo-convex RO is provided on the molding surface of the second mold M22 facing the molding surface, and the state of the concavo-convex RO is transferred to the initial flat cushion material 1B and the skin material 2B during injection molding.
  • the initial flat plate-shaped cushion material 1B and the skin material 2B after injection molding are curved along the uneven RO, and the quilting pattern PT1 corresponding to the uneven RO is formed on the surface of the skin material 2B. become.
  • a plurality of protrusions T are provided on the molding surface of the second mold M22, that is, the surface facing the back surface of the initial flat plate cushion material 1.
  • the resin core material is injection-molded on the back surface of the cushion material 1 such as the shaped cushion material 1A or the initial flat plate cushion material 1B.
  • 3A (3B) is joined, no adhesive or crimping work is required in the joining, and the use of a mold having uneven RO on the molded surface, or the cushion material 1 having unevenness 4 on the surface 1. That is, since the quilted pattern PT1 corresponding to the unevenness 4 is provided on the surface of the skin material 2A (2B) by using the shaped cushion material 1, the conventional application, drying, and crimping work of the adhesive is abolished. It is suitable for producing this kind of interior parts for automobiles with a quilting pattern in a short time and at low cost because it can be done and the laborious quilting sewing work can be eliminated.
  • FIG. 3 is an explanatory view of an example in which a barrier layer is provided in an automobile interior part (automobile interior part of the first embodiment) of FIG. 1 (d), and FIG. 4 is an automobile interior part of FIG. 2 (d).
  • FIG. 3 is explanatory drawing of an example which provided the barrier layer in (the interior part for an automobile of 2nd Embodiment).
  • the surfaces of the cushioning materials 1A and 1B that come into contact with the molten resin when the resin core materials 3A and 3B are injection-molded are impregnated with the molten resin on the cushioning materials 1A and 1B sides.
  • a barrier layer 5 for preventing the cushioning materials 1A and 1B from melting due to the heat of the molten resin is provided, and such a modification may be adopted.
  • the barrier layer 5 of this type may be made of, for example, a non-woven fabric such as spunlace or spunbond, a film, or a release paper.
  • P1, P2 Interior parts for automobiles P3 Conventional interior parts for automobiles with quilting pattern 1A, 1B Cushion material 2A, 2B Skin material 3A, 3B Resin core material 4 Cushion material unevenness 41 Cushion material unevenness concave part 5 Barrier layer 7 Sewing Thread 8 Adhesive H hole PT1 Quilting pattern M1 Molding mold M11 First mold M12 Second mold RO Molding surface unevenness RO1 Molding surface unevenness concave part

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

[Problem] To provide an interior component for an automobile suitable for manufacturing, in a short period of time and at a low cost, an interior component for an automobile having a quilting pattern. [Solution] An interior component P1 for automobile to be mounted to an inner surface of a vehicle body panel of an automobile comprises: a cushion material 1A which has resilience; a skin material 2A which is joined to a surface of the cushion material 1A; and a resin core material 3A which is joined to a rear surface of the cushion material 1A through injection molding, the cushion material 1A includes, on a surface thereof, recesses and protrusions 4 formed in advance, and the skin material 2A includes, on a surface thereof, a quilting-style pattern PT1 corresponding to the recesses and protrusions 4.

Description

自動車用内装部品Interior parts for automobiles
　本発明は、自動車の車体パネル内面に取付けられるドアトリムなどの自動車用内装部品に関し、特に、キルティング模様付き自動車用内装部品を短時間で安価に作製するのに好適なものである。 The present invention relates to automobile interior parts such as door trims attached to the inner surface of an automobile body panel, and is particularly suitable for producing automobile interior parts with a quilting pattern in a short time and at low cost.
　この種の自動車用内装部品としては、例えば特許文献１に開示されている。同文献１の自動車用内装部品（１）は、樹脂芯材（２）の表面に表皮材（３）を接合した構成になっており、その表皮材（３）にはキルティング加工が施されることでステッチ（４）によるキルティング模様が付されている。 As an interior part for an automobile of this kind, for example, it is disclosed in Patent Document 1. The automobile interior part (1) of the same document 1 has a structure in which a skin material (3) is bonded to the surface of a resin core material (2), and the skin material (3) is quilted. Therefore, a quilting pattern by stitch (4) is attached.
　図５（ａ）から（ｃ）は従来のキルティング模様付き自動車用内装部品の製造工程の説明図である。 5 (a) to 5 (c) are explanatory views of the manufacturing process of the conventional interior parts for automobiles with a quilting pattern.
　図５（ａ）の工程１はキルティング縫製工程である。このキルティング縫製工程（工程１）では、クッション材１０１の裏面に接着剤１０２で台紙１０３を接着した後、クッション材１０１と台紙１０３からなる接着品に対して縫製を施すことによりキルティング模様（ステッチ）付きの素材（以下「キルティング素材」という）を作製する。なお、クッション材１０１の表面には不織布１０４が貼合されている。不織布１０４は、後の工程でクッション材１０１の表面に対して表皮材１０６（同図（ｂ）参照）を貼付した時に、表皮材１０６が剥がれ落ち難くなるようにするものである。 Step 1 in FIG. 5A is a quilting sewing step. In this quilting sewing step (step 1), a quilting pattern (stitch) is formed by adhering the mount 103 to the back surface of the cushion material 101 with an adhesive 102 and then sewing the adhesive product composed of the cushion material 101 and the mount 103. Create a material with a quilt (hereinafter referred to as "quilting material"). A non-woven fabric 104 is bonded to the surface of the cushion material 101. The nonwoven fabric 104 makes it difficult for the skin material 106 to come off when the skin material 106 (see FIG. 3B) is attached to the surface of the cushion material 101 in a later step.
　図５（ｂ）の工程２は表皮貼付工程である。この表皮貼付工程では、前記工程１で作製したキルティング素材の表面（具体的にはキルティング模様が現れている表皮材１０１の表面）に接着剤１０５で表皮材１０６を貼合する。これにより、キルティング模様を構成している縫製糸１０７は表皮材１０６によって隠れて見えなくなり、縫製による凹凸１０８だけがキルティング素材の表面に現れた状態になる。 Step 2 in FIG. 5 (b) is a skin pasting step. In this skin pasting step, the skin material 106 is bonded to the surface of the quilting material produced in step 1 (specifically, the surface of the skin material 101 in which the quilting pattern appears) with the adhesive 105. As a result, the sewing thread 107 constituting the quilting pattern is hidden by the skin material 106 and cannot be seen, and only the unevenness 108 due to sewing appears on the surface of the quilting material.
　図５（ｃ）の工程３は部分縫製工程である。この部分縫製工程では、前記のような凹凸１０８の凹部１０８Ａのみに縫製を施す、いわゆる部分縫製を行う。この部分縫製で使用した縫製糸１０９が装飾として外部から視認できるものである。 Step 3 in FIG. 5 (c) is a partial sewing step. In this partial sewing step, so-called partial sewing is performed in which sewing is performed only on the concave portion 108A of the unevenness 108 as described above. The sewing thread 109 used in this partial sewing is visible from the outside as a decoration.
　図５（ｄ）の工程４は芯材付与工程である。この芯材付与工程では、前述の部分縫製後の素材の裏面（具体的には台紙１０３の裏面）に接着剤１１０で樹脂芯材１１１を貼合することで、最終製品としてのキルティング模様付き自動車用内装部品Ｐ３を得る。 Step 4 in FIG. 5 (d) is a core material applying step. In this core material applying step, the resin core material 111 is bonded to the back surface of the material after partial sewing (specifically, the back surface of the mount 103) with the adhesive 110, so that the automobile with a quilting pattern as a final product is used. Obtain the interior component P3 for use.
　しかしながら、以上のようにして製造される従来のキルティング模様付き自動車用内装部品Ｐ３によると、その製造工程、具体的には表皮貼付工程（工程２）と芯材付与工程（工程４）の両工程で接着剤１０５、１１０を使用するため、それぞれの工程において接着剤の塗布、乾燥、圧着作業が必要であるため、製造時間が長くならざるを得ないし、製造コストも高くならざるを得ない。また、手間のかかるキルティング縫製作業を行わなければならないことから、この種のキルティング模様付き自動車用内装部品を短時間で安価に作製することが難しいという問題点がある。 However, according to the conventional interior parts P3 for automobiles with a quilting pattern manufactured as described above, the manufacturing process, specifically, both the skin pasting step (step 2) and the core material applying step (step 4). Since the adhesives 105 and 110 are used in the above, the coating, drying, and crimping operations of the adhesive are required in each process, so that the manufacturing time has to be long and the manufacturing cost has to be high. In addition, since it is necessary to perform time-consuming quilting sewing work, there is a problem that it is difficult to manufacture this kind of interior parts for automobiles with a quilting pattern in a short time and at low cost.
　なお、前記カッコ内の符号は特許文献１で用いられている符号である。 The reference numerals in parentheses are the reference numerals used in Patent Document 1.
ＷＯ２０１８／０４２６４５WO2018 / 042645
　本発明は、前記問題点を解決するためになされたものであり、その目的は、キルティング模様付き自動車用内装部品を短時間で安価に作製するのに好適な自動車用内装部品を提供することである。 The present invention has been made to solve the above problems, and an object of the present invention is to provide an automobile interior part suitable for manufacturing an automobile interior part having a quilting pattern in a short time and at a low cost. be.
　前記目的を達成するために、第１の本発明は、自動車の車体パネル内面に取付けられる自動車用内装部品であって、弾力性を有するクッション材と、前記クッション材の表面に接合された表皮材と、前記クッション材の裏面に射出成形で接合された樹脂芯材と、を備え、前記クッション材は、その表面に、予め形成された凹凸を有し、前記表皮材は、その表面に、前記凹凸に対応するキルティング調模様を有することを特徴とする。 In order to achieve the above object, the first aspect of the present invention is an automobile interior component attached to the inner surface of an automobile body panel, which is an elastic cushion material and a skin material bonded to the surface of the cushion material. And a resin core material bonded to the back surface of the cushion material by injection molding, the cushion material has irregularities formed in advance on the surface thereof, and the skin material has the above-mentioned surface surface. It is characterized by having a quilting-like pattern corresponding to unevenness.
　第２の本発明は、自動車の車体パネル内面に取付けられる自動車用内装部品であって、弾力性を有するクッション材と、前記クッション材の表面に接合された表皮材と、前記クッション材の裏面に射出成形で接合された樹脂芯材と、を備え、前記射出成形前の前記クッション材および前記表皮材は、平板形状であり、前記射出成形で用いた金型の成形面には凹凸が設けられていて、その凹凸が前記射出成形時に前記クッション材および前記表皮材に対して転写されることで、前記クッション材および前記表皮材は、前記凹凸に沿って湾曲し、かつ、前記表皮材の表面には、前記凹凸に対応するキルティング調模様が形成された状態になっていることを特徴とする。 The second aspect of the present invention is an interior component for an automobile mounted on the inner surface of an automobile body panel, which is an elastic cushion material, a skin material bonded to the surface of the cushion material, and a back surface of the cushion material. The cushioning material and the skin material before injection molding are provided with a resin core material joined by injection molding, and the molding surface of the mold used in the injection molding is provided with irregularities. The unevenness is transferred to the cushion material and the skin material at the time of injection molding, so that the cushion material and the skin material are curved along the unevenness and the surface of the skin material is formed. Is characterized in that a quilting-like pattern corresponding to the unevenness is formed.
　前記第１又は第２の本発明において、前記樹脂芯材は、前記凹凸の凹部の位置に合せて形成された複数の孔を有し、前記複数の孔に通された縫製糸によって前記樹脂芯材、前記クッション材、および前記表皮材が縫い合わされ、かつ、その縫い合わせの縫い目からなる縫製デザイン模様が前記キルティング調模様内に設けられていることを特徴としてもよい。 In the first or second invention, the resin core material has a plurality of holes formed in accordance with the positions of the concave portions of the unevenness, and the resin core is formed by sewing threads passed through the plurality of holes. It may be characterized in that the material, the cushion material, and the skin material are sewn together, and a sewn design pattern including the seams of the sewn material is provided in the quilting-like pattern.
　前記第１又は第２の本発明において、前記樹脂芯材を射出成形する時の溶融樹脂と接触する前記クッション材の面に、該クッション材側への当該溶融樹脂の含侵やその溶融樹脂の熱による前記クッション材の溶融を防止するバリア層を設けたことを特徴としてもよい。 In the first or second invention, the surface of the cushion material that comes into contact with the molten resin when the resin core material is injection-molded is impregnated with the molten resin on the cushion material side and the molten resin thereof. It may be characterized by providing a barrier layer for preventing the cushioning material from melting due to heat.
　本発明によると、前述の通り、クッション材の裏面に射出成形で樹脂芯材が接合されており、その接合において接着剤は不要であること、および、成形面に凹凸を有する金型の使用、あるいは、表面に凹凸を有するクッション材の使用によって、該凹凸に対応するキルティング調模様が表皮材の表面に設けられることから、従来のような接着剤の塗布、乾燥、圧着作業を廃止でき、また手間のかかるキルティング縫製作業も廃止できる点で、この種のキルティング模様付き自動車用内装部品を短時間で安価に作製するのに好適な自動車用内装部品を提供し得るという作用効果を奏する。 According to the present invention, as described above, the resin core material is bonded to the back surface of the cushion material by injection molding, no adhesive is required for the bonding, and the use of a mold having irregularities on the molded surface. Alternatively, by using a cushioning material having irregularities on the surface, a quilting-like pattern corresponding to the irregularities is provided on the surface of the skin material, so that the conventional application, drying, and crimping work of an adhesive can be abolished. In that the time-consuming quilting sewing work can be eliminated, it is possible to provide an automobile interior part suitable for producing this kind of quilted patterned automobile interior part in a short time and at low cost.
（ａ）から（ｄ）は第１の本発明を適用した自動車用内装部品の製造工程の説明図。(A) to (d) are explanatory views of the manufacturing process of the interior parts for automobiles to which the 1st invention is applied. （ａ）から（ｄ）は第２の本発明を適用した自動車用内装部品の製造工程の説明図。(A) to (d) are explanatory views of the manufacturing process of the interior parts for automobiles to which the 2nd invention is applied. 図１（ｄ）の自動車用内装部品（第１実施形態の自動車用内装部品）においてバリア層を設けた例の説明図。It is explanatory drawing of the example which provided the barrier layer in the automobile interior part (the automobile interior part of 1st Embodiment) of FIG. 1D. 図２（ｄ）の自動車用内装部品（第２実施形態の自動車用内装部品）においてバリア層を設けた例の説明図。FIG. 2 is an explanatory diagram of an example in which a barrier layer is provided in an automobile interior part (automobile interior part of the second embodiment) of FIG. 2D. （ａ）から（ｃ）は従来のキルティング模様付き自動車用内装部品の製造工程の説明図。(A) to (c) are explanatory views of the manufacturing process of the conventional interior parts for automobiles with a quilting pattern.
　以下、本発明を実施するための最良の形態について、添付した図面を参照しながら詳細に説明する。 Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the attached drawings.
　図１（ａ）から（ｄ）は、第１の本発明を適用した自動車用内装部品の製造工程の説明図である。 1 (a) to 1 (d) are explanatory views of a manufacturing process of an automobile interior part to which the first invention is applied.
　図１（ｄ）を参照すると、第１の本発明を適用した自動車用内装部品Ｐ１（以下「第１実施形態の自動車用内装部品Ｐ１」という）は、図示しない自動車の車体パネル内面に取付けられる部品（例えばドアトリム）であって、弾力性を有するクッション材１Ａと、クッション材１Ａの表面に接合された表皮材２Ａと、クッション材１Ａの裏面に射出成形で接合された樹脂芯材３Ａと、を備え、前記クッション材１Ａは、その表面に、予め形成された凹凸４を有し（同図（ａ）参照）、前記表皮材２Ａは、その表面に、当該凹凸４に対応するキルティング調模様ＰＴ１を有している。 Referring to FIG. 1 (d), the automobile interior component P1 to which the first invention is applied (hereinafter referred to as “the automobile interior component P1 of the first embodiment”) is attached to the inner surface of an automobile body panel (not shown). Parts (for example, door trim), a cushion material 1A having elasticity, a skin material 2A bonded to the surface of the cushion material 1A, and a resin core material 3A bonded to the back surface of the cushion material 1A by injection molding. The cushion material 1A has a pre-formed unevenness 4 on its surface (see FIG. (A)), and the skin material 2A has a quilting-like pattern corresponding to the unevenness 4 on its surface. It has PT1.
　また、第１実施形態の自動車用内装部品Ｐ１では、樹脂芯材３Ａは凹凸４の凹部４１の位置に合せて形成された複数の孔Ｈを有している。そして、これら複数の孔Ｈに通された縫製糸７によって樹脂芯材３Ａ、クッション材１Ａ、および表皮材２Ａが互いに縫い合わされ、かつ、その縫い合わせの縫い目からなる縫製デザイン模様ＰＴ２が前記キルティング調模様ＰＴ１内に設けられている。 Further, in the automobile interior component P1 of the first embodiment, the resin core material 3A has a plurality of holes H formed in accordance with the positions of the recesses 41 of the unevenness 4. The resin core material 3A, the cushion material 1A, and the skin material 2A are sewn together by the sewing thread 7 passed through the plurality of holes H, and the sewing design pattern PT2 composed of the seams of the stitches is the quilting-like pattern. It is provided in PT1.
　以上のような構成からなる第１実施形態の自動車用内装部品Ｐ１は、図１（ａ）の準備工程、同図（ｂ）の射出成形工程、同図（ｃ）の製品取出し工程、同図（ｄ）の部分縫製工程によって製造することができる。それぞれの工程の詳細は以下の通りである。 The automobile interior component P1 of the first embodiment having the above configuration has a preparation process of FIG. 1 (a), an injection molding process of FIG. 1 (b), a product taking-out process of FIG. 1 (c), and the figure of FIG. It can be manufactured by the partial sewing process of (d). The details of each process are as follows.
《図１（ａ）の準備工程》
　この図１（ａ）準備工程では、同図（ａ）のように表面に凹凸４を有するクッション材１Ａ（以下「形状付きクッション材１Ａ」という）を用意する。このクッション材１Ａの凹凸面（凹凸４を有する面）には接着剤８を介して表皮材２Ａが接合されている。このように接合された表皮材２Ａがクッション材１Ａの凹凸４に沿って貼り付けられることで、その表皮材２Ａの表面にはクッション材１Ａの凹凸４に対応するキルティング調模様ＰＴ１が設けられている。 << Preparation process of FIG. 1 (a) >>
In the preparation step of FIG. 1 (a), a cushion material 1A having an uneven surface 4 on the surface (hereinafter referred to as “shaped cushion material 1A”) is prepared as shown in FIG. 1 (a). The skin material 2A is joined to the uneven surface (the surface having the unevenness 4) of the cushion material 1A via the adhesive 8. The skin material 2A joined in this way is attached along the unevenness 4 of the cushion material 1A, so that the surface of the skin material 2A is provided with a quilting pattern PT1 corresponding to the unevenness 4 of the cushion material 1A. There is.
《図１（ｂ）の射出成形工程》
　この図１（ｂ）の射出成形工程では、第１の型Ｍ１１（上型）および第２の型Ｍ１２（下型）からなる成形金型Ｍ１を用い、その両型Ｍ１１、Ｍ１２間に形状付きクッション材１Ａを配置し、型閉じおよび型締め後、第２の金型Ｍ１２と形状付きクッション材１Ａとの間に形成されるキャビティ（図示省略）内に溶融樹脂を射出する。この射出の溶融樹脂がキャビティ内で冷却・固化することにより、クッション材１Ａの裏面には射出成形で接合された樹脂芯材３Ａ（同図（ｃ）および（ｄ）参照）が形成される。 << Injection molding process of FIG. 1 (b) >>
In the injection molding step of FIG. 1B, a molding die M1 composed of a first mold M11 (upper mold) and a second mold M12 (lower mold) is used, and a shape is formed between the two molds M11 and M12. After the cushion material 1A is arranged and the mold is closed and the mold is fastened, the molten resin is injected into a cavity (not shown) formed between the second mold M12 and the shaped cushion material 1A. When the molten resin of this injection is cooled and solidified in the cavity, a resin core material 3A (see FIGS. (C) and (d)) joined by injection molding is formed on the back surface of the cushion material 1A.
　また、第２の型Ｍ１２の成形面、すなわち形状付きクッション材１Ａの裏面と対向する面側には、突起Ｔが複数設けられている。そして、これらの突起Ｔが形状付きクッション材１Ａにおける凹凸４の凹部４１の位置に合せて配置されていることで、射出成形で形成された樹脂芯材３Ａには、その凹凸４の凹部４１の位置に合せて形成された複数の孔Ｈ（図１（ｃ）参照）が設けられる。 Further, a plurality of protrusions T are provided on the molding surface of the second mold M12, that is, on the surface side facing the back surface of the shaped cushion material 1A. By arranging these protrusions T in line with the positions of the concave portions 41 of the unevenness 4 in the shaped cushion material 1A, the resin core material 3A formed by injection molding has the concave portions 41 of the unevenness 4. A plurality of holes H (see FIG. 1 (c)) formed according to the position are provided.
《図１（ｃ）の製品取出し工程》
　この図１（ｃ）の製品取出し工程では、第１の型Ｍ１１と第２の型Ｍ１２を相対的に引き離す、いわゆる型開きを行い、形状付き平板状クッション材１Ａ、表皮材２Ａおよび樹脂芯材３Ａからなる成形品を成形金型Ｍより取り出す。 << Product removal process in FIG. 1 (c) >>
In the product taking-out process of FIG. 1 (c), the first mold M11 and the second mold M12 are relatively separated from each other, so-called mold opening is performed, and the shaped flat plate cushion material 1A, the skin material 2A and the resin core material are separated. A molded product made of 3A is taken out from the molding die M.
《図１（ｄ）の部分縫製工程》
　この図１（ｄ）の部分縫製工程では、同図（ｄ）のように複数の孔Ｈに通された縫製糸７によって樹脂芯材３Ａ、形状付きクッション材１Ａ、および表皮材２Ａを互いに縫い合わせる。これにより、その縫い合わせの縫い目からなる縫製デザイン模様ＰＴ２が前述のキルティング調模様ＰＴ１内に設けられる。 << Partial sewing process of FIG. 1 (d) >>
In the partial sewing step of FIG. 1 (d), the resin core material 3A, the shaped cushion material 1A, and the skin material 2A are sewn together by the sewing thread 7 passed through the plurality of holes H as shown in FIG. 1 (d). .. As a result, the sewing design pattern PT2 composed of the stitches of the stitch is provided in the above-mentioned quilting-like pattern PT1.
　以上説明した第１実施形態の自動車用内装部品Ｐ１において、形状付きクッション材１Ａと表皮材２Ａはその形状付きクッション材１Ａの溶融によって接合されてもよい。 In the automobile interior component P1 of the first embodiment described above, the shaped cushion material 1A and the skin material 2A may be joined by melting the shaped cushion material 1A.
　図２（ａ）から（ｄ）は、第２の本発明を適用した自動車用内装部品の製造工程の説明図である。 2 (a) to 2 (d) are explanatory views of a second manufacturing process of an interior part for an automobile to which the present invention is applied.
　図２（ｄ）を参照すると、第２の本発明を適用した自動車用内装部品Ｐ２（以下「第２実施形態の自動車用内装部品Ｐ２」という）は、図示しない自動車の車体パネル内面に取付けられる例えばドアトリムであって、弾力性を有するクッション材１Ｂと、クッション材１Ｂの表面に接合された表皮材２Ａと、クッション材１Ｂの裏面に射出成形で接合された樹脂芯材３Ｂと、を備えている。 Referring to FIG. 2D, the second automobile interior component P2 to which the present invention is applied (hereinafter referred to as “the automobile interior component P2 of the second embodiment”) is attached to the inner surface of an automobile body panel (not shown). For example, a door trim having an elastic cushion material 1B, a skin material 2A bonded to the front surface of the cushion material 1B, and a resin core material 3B bonded to the back surface of the cushion material 1B by injection molding. There is.
　第２実施形態の自動車用内装部品Ｐ２において、前記射出成形前のクッション材１Ｂおよび表皮材２Ｂは、平板形状であり（図２（ａ）参照）、また、射出成形で用いた金型の成形面には凹凸ＲＯ（同図（ｂ）参照）が設けられていて、その凹凸ＲＯが前記射出成形時に前記クッション材１Ｂおよび前記表皮材２Ｂに対して転写されることで、前記クッション材１Ｂおよび前記表皮材２Ｂは、前記凹凸ＲＯに沿って湾曲し、かつ、前記表皮材２Ｂの表面には、前記凹凸ＲＯに対応するキルティング調模様ＰＴ１が形成された状態になっている。 In the automobile interior part P2 of the second embodiment, the cushion material 1B and the skin material 2B before injection molding have a flat plate shape (see FIG. 2A), and the molding of the mold used in injection molding is performed. A concavo-convex RO (see FIG. 3B) is provided on the surface, and the concavo-convex RO is transferred to the cushion material 1B and the skin material 2B during the injection molding, whereby the cushion material 1B and the cushion material 1B and the surface material 2B are transferred. The skin material 2B is curved along the uneven RO, and the quilting pattern PT1 corresponding to the uneven RO is formed on the surface of the skin material 2B.
　第２実施形態の自動車用内装部品Ｐ２でも、先に説明した第１実施形態の自動車用内装部品Ｐ１と同じく、樹脂芯材３Ｂは凹凸ＲＯの凹部ＲＯ１の位置に合せて形成された複数の孔Ｈを有している。そして、これら複数の孔Ｈに通された縫製糸７によって樹脂芯材３Ｂ、クッション材１Ｂ、および表皮材２Ｂが互いに縫い合わされ、かつ、その縫い合わせの縫い目からなる縫製デザイン模様ＰＴ２が前記キルティング調模様ＰＴ１内に設けられている。 In the automobile interior parts P2 of the second embodiment as well as the automobile interior parts P1 of the first embodiment described above, the resin core material 3B has a plurality of holes formed in accordance with the positions of the concave portions RO1 of the concave-convex RO. Has H. The resin core material 3B, the cushion material 1B, and the skin material 2B are sewn to each other by the sewing thread 7 passed through the plurality of holes H, and the sewing design pattern PT2 composed of the seams of the stitches is the quilting-like pattern. It is provided in PT1.
　以上のような構成からなる第２実施形態の自動車用内装部品Ｐ２は、図２（ａ）の準備工程、同図（ｂ）の射出成形工程、同図（ｃ）の製品取出し工程、同図（ｄ）の部分縫製工程によって製造することができる。それぞれの工程の詳細は以下の通りである。 The automobile interior component P2 according to the second embodiment having the above configuration includes the preparation process of FIG. 2 (a), the injection molding process of FIG. 2 (b), the product taking-out process of FIG. 2 (c), and the figure of FIG. It can be manufactured by the partial sewing process of (d). The details of each process are as follows.
《図２（ａ）の準備工程》
　この図２（ａ）の準備工程では、同図（ａ）のように表面に凹凸のない平板状のクッション材１Ｂ（以下「初期平板状クッション材１Ｂ」という）を用意する。この初期平板状クッション材１Ｂの表面にはその初期平板状クッション材１の溶融によって貼付された表皮材２Ｂが接合されており、初期平板状クッション材１Ｂと表皮材２Ｂの接合において接着剤は使用していないが、接着剤を使用することも可能である。 << Preparation process of FIG. 2A >>
In the preparation step of FIG. 2A, a flat plate-shaped cushion material 1B (hereinafter referred to as “initial flat plate-shaped cushioning material 1B”) having no unevenness on the surface is prepared as shown in FIG. 2A. A skin material 2B attached by melting the initial flat plate cushion material 1 is bonded to the surface of the initial flat plate cushion material 1B, and an adhesive is used in joining the initial flat plate cushion material 1B and the skin material 2B. Although not, it is possible to use an adhesive.
《図２（ｂ）の射出成形工程》
　この図２（ｂ）の射出成形工程では、第１の型Ｍ２１（上型）および第２の型Ｍ２２（下型）からなる成形金型Ｍ２を用い、その両型Ｍ２１、Ｍ２２間に初期平板状クッション材１Ｂを配置し、型閉じおよび型締め後、第２の金型Ｍ２２と初期平板状クッション材１Ｂとの間に形成されるキャビティ（図示省略）内に溶融樹脂を射出する。この射出の溶融樹脂がキャビティ内で冷却・固化することにより、初期平板状クッション材１Ｂの裏面には射出成形で接合された樹脂芯材３Ｂ（同図（ｃ）参照）が形成される。 << Injection molding process of FIG. 2B >>
In the injection molding step of FIG. 2B, a molding die M2 composed of a first mold M21 (upper mold) and a second mold M22 (lower mold) is used, and an initial flat plate is used between the two molds M21 and M22. The shaped cushion material 1B is arranged, and after the mold is closed and the mold is fastened, the molten resin is injected into a cavity (not shown) formed between the second mold M22 and the initial flat plate cushion material 1B. When the molten resin of this injection is cooled and solidified in the cavity, a resin core material 3B (see FIG. 3C) joined by injection molding is formed on the back surface of the initial flat plate-shaped cushion material 1B.
　前記射出成形で用いた成形金型Ｍ２の成形面、具体的には、初期平板状クッション材１の表面側と対向する第１の型Ｍ２１の成型面、および、初期平板状クッション材１の裏面と対向する第２の型Ｍ２２の成型面には、凹凸ＲＯが設けられていて、かかる凹凸ＲＯの状態が射出成形時に初期平板状クッション材１Ｂおよび表皮材２Ｂに対して転写されることで、射出成型後の初期平板状クッション材１Ｂおよび表皮材２Ｂは、当該凹凸ＲＯに沿って湾曲し、かつ、表皮材２Ｂの表面には、前記凹凸ＲＯに対応するキルティング調模様ＰＴ１が形成された状態になる。 The molding surface of the molding die M2 used in the injection molding, specifically, the molding surface of the first mold M21 facing the front surface side of the initial flat plate cushion material 1, and the back surface of the initial flat plate cushion material 1. A concavo-convex RO is provided on the molding surface of the second mold M22 facing the molding surface, and the state of the concavo-convex RO is transferred to the initial flat cushion material 1B and the skin material 2B during injection molding. The initial flat plate-shaped cushion material 1B and the skin material 2B after injection molding are curved along the uneven RO, and the quilting pattern PT1 corresponding to the uneven RO is formed on the surface of the skin material 2B. become.
　さらに、第２の型Ｍ２２の成形面、すなわち初期平板状クッション材１の裏面と対向する面には突起Ｔが複数設けられている。そして、これらの突起Ｔが前記凹凸ＲＯの凹部ＲＯ１の位置に合せて配置されていることで、射出成形で形成された樹脂芯材３Ｂには、その凹凸ＲＯの凹部ＲＯ１の位置に合せて形成された複数の孔Ｈ（同図（ｃ）参照）が設けられる。 Further, a plurality of protrusions T are provided on the molding surface of the second mold M22, that is, the surface facing the back surface of the initial flat plate cushion material 1. By arranging these protrusions T in accordance with the positions of the concave portions RO1 of the uneven RO, the resin core material 3B formed by injection molding is formed in accordance with the positions of the concave portions RO1 of the uneven RO. A plurality of holes H (see FIG. 3C) are provided.
《図２（ｃ）の製品取出し工程》
　この図２（ｃ）の製品取出し工程では、第１の型Ｍ２１と第２の型Ｍ２２を相対的に引き離す、いわゆる型開きを行い、初期平板状クッション材１Ｂ、表皮材２Ｂおよび樹脂芯材３Ｂからなる成形品を成形金型Ｍ２より取り出す。 << Product removal process in Fig. 2 (c) >>
In the product taking-out process of FIG. 2 (c), the first mold M21 and the second mold M22 are relatively separated from each other, so-called mold opening is performed, and the initial flat plate-shaped cushion material 1B, the skin material 2B and the resin core material 3B are performed. A molded product made of the above is taken out from the molding die M2.
《図２（ｄ）の部分縫製工程》
　この図２（ｄ）の部分縫製工程では、同図（ｄ）のように複数の孔Ｈに通された縫製糸７によって樹脂芯材３Ｂ、平板状クッション材１Ｂ、および表皮材２Ｂを互いに縫い合わせる。これにより、その縫い合わせの縫い目からなる縫製デザイン模様ＰＴ２が前述のキルティング調模様ＰＴ１内に設けられる。 << Partial sewing process of Fig. 2 (d) >>
In the partial sewing step of FIG. 2D, the resin core material 3B, the flat plate cushion material 1B, and the skin material 2B are sewn together by the sewing thread 7 passed through the plurality of holes H as shown in FIG. 2D. .. As a result, the sewing design pattern PT2 composed of the stitches of the stitch is provided in the above-mentioned quilting-like pattern PT1.
　以上説明した第１および第２実施形態の自動車用内装部品Ｐ１、Ｐ２にあっては、形状付きクッション材１Ａあるいは初期平板状クッション材１Ｂのようなクッション材１の裏面に射出成形で樹脂芯材３Ａ（３Ｂ）が接合されており、その接合において接着剤や圧着作業は不要であること、および、成形面に凹凸ＲＯを有する金型の使用、あるいは、表面に凹凸４を有するクッション材１、すなわち形状付きクッション材１の使用によって、その凹凸４に対応するキルティング調模様ＰＴ１が表皮材２Ａ（２Ｂ）の表面に設けられることから、従来のような接着剤の塗布、乾燥、圧着作業を廃止でき、また手間のかかるキルティング縫製作業も廃止できる点で、この種のキルティング模様付き自動車用内装部品を短時間で安価に作製するのに好適である。 In the automobile interior parts P1 and P2 described above, the resin core material is injection-molded on the back surface of the cushion material 1 such as the shaped cushion material 1A or the initial flat plate cushion material 1B. 3A (3B) is joined, no adhesive or crimping work is required in the joining, and the use of a mold having uneven RO on the molded surface, or the cushion material 1 having unevenness 4 on the surface 1. That is, since the quilted pattern PT1 corresponding to the unevenness 4 is provided on the surface of the skin material 2A (2B) by using the shaped cushion material 1, the conventional application, drying, and crimping work of the adhesive is abolished. It is suitable for producing this kind of interior parts for automobiles with a quilting pattern in a short time and at low cost because it can be done and the laborious quilting sewing work can be eliminated.
　本発明は、以上説明した実施形態に限定されるものではなく、本発明の技術的思想内で当分野において通常の知識を有する者により多くの変形が可能である。 The present invention is not limited to the embodiments described above, and more modifications can be made by a person having ordinary knowledge in the art within the technical idea of the present invention.
　例えば、図３は図１（ｄ）の自動車用内装部品（第１実施形態の自動車用内装部品）においてバリア層を設けた例の説明図、図４は図２（ｄ）の自動車用内装部品（第２実施形態の自動車用内装部品）においてバリア層を設けた例の説明図である。これらの実施形態実施形態では、樹脂芯材３Ａ、３Ｂを射出成形する時の溶融樹脂と接触するクッション材１Ａ、１Ｂの面に、該クッション材１Ａ、１Ｂ側への当該溶融樹脂の含侵やその溶融樹脂の熱によるクッション材１Ａ、１Ｂの溶融を防止するバリア層５を設けており、このような変形例を採用してもよい。この種のバリア層５については、例えばスパンレース、スパンボンド等の不織布、フィルム、あるいは離型紙で構成してもよい。 For example, FIG. 3 is an explanatory view of an example in which a barrier layer is provided in an automobile interior part (automobile interior part of the first embodiment) of FIG. 1 (d), and FIG. 4 is an automobile interior part of FIG. 2 (d). It is explanatory drawing of the example which provided the barrier layer in (the interior part for an automobile of 2nd Embodiment). In these embodiments, the surfaces of the cushioning materials 1A and 1B that come into contact with the molten resin when the resin core materials 3A and 3B are injection-molded are impregnated with the molten resin on the cushioning materials 1A and 1B sides. A barrier layer 5 for preventing the cushioning materials 1A and 1B from melting due to the heat of the molten resin is provided, and such a modification may be adopted. The barrier layer 5 of this type may be made of, for example, a non-woven fabric such as spunlace or spunbond, a film, or a release paper.
Ｐ１、Ｐ２　自動車用内装部品
Ｐ３　従来のキルティング模様付き自動車用内装部品
１Ａ、１Ｂ　クッション材
２Ａ、２Ｂ　表皮材
３Ａ、３Ｂ　樹脂芯材
４　クッション材の凹凸
４１　クッション材の凹凸の凹部
５　バリア層
７　縫製糸
８　接着剤
Ｈ　孔
ＰＴ１　キルティング調模様
Ｍ１　成形金型
Ｍ１１　第１の型
Ｍ１２　第２の型
ＲＯ　金型成形面の凹凸
ＲＯ１　金型成形面の凹凸の凹部
  P1, P2 Interior parts for automobiles P3 Conventional interior parts for automobiles with quilting pattern 1A, 1B Cushion material 2A, 2B Skin material 3A, 3B Resin core material 4 Cushion material unevenness 41 Cushion material unevenness concave part 5 Barrier layer 7 Sewing Thread 8 Adhesive H hole PT1 Quilting pattern M1 Molding mold M11 First mold M12 Second mold RO Molding surface unevenness RO1 Molding surface unevenness concave part

Claims (4)

  1. 　自動車の車体パネル内面に取付けられる自動車用内装部品であって、
    　弾力性を有するクッション材と、
    　前記クッション材の表面に接合された表皮材と、
    　前記クッション材の裏面に射出成形で接合された樹脂芯材と、を備え、
    　前記クッション材は、その表面に、予め形成された凹凸を有し、
    　前記表皮材は、その表面に、前記凹凸に対応するキルティング調模様を有すること
    　を特徴とする自動車用内装部品。     It is an interior part for automobiles that is attached to the inner surface of the body panel of an automobile.
    Elastic cushioning material and
    The skin material bonded to the surface of the cushion material and
    A resin core material bonded by injection molding to the back surface of the cushion material is provided.
    The cushioning material has pre-formed irregularities on its surface.
    The skin material is an interior component for an automobile, characterized in that the surface thereof has a quilting-like pattern corresponding to the unevenness.
  2. 　自動車の車体パネル内面に取付けられる自動車用内装部品であって、
    　弾力性を有するクッション材と、
    　前記クッション材の表面に接合された表皮材と、
    　前記クッション材の裏面に射出成形で接合された樹脂芯材と、を備え、
    　前記射出成形前の前記クッション材および前記表皮材は、平板形状であり、
    　前記射出成形で用いた金型の成形面には凹凸が設けられていて、その凹凸が前記射出成形時に前記クッション材および前記表皮材に対して転写されることで、前記クッション材および前記表皮材は、前記凹凸に沿って湾曲し、かつ、前記表皮材の表面には、前記凹凸に対応するキルティング調模様が形成された状態になっていること
    　を特徴とする自動車用内装部品。     It is an interior part for automobiles that is attached to the inner surface of the body panel of an automobile.
    Elastic cushioning material and
    The skin material bonded to the surface of the cushion material and
    A resin core material bonded by injection molding to the back surface of the cushion material is provided.
    The cushion material and the skin material before injection molding have a flat plate shape and have a flat plate shape.
    The molding surface of the mold used in the injection molding is provided with irregularities, and the irregularities are transferred to the cushion material and the skin material during the injection molding, whereby the cushion material and the skin material are transferred. Is an interior component for an automobile, characterized in that it is curved along the unevenness and a quilting-like pattern corresponding to the unevenness is formed on the surface of the skin material.
  3. 　前記樹脂芯材は、前記凹凸の凹部の位置に合せて形成された複数の孔を有し、
    　前記複数の孔に通された縫製糸によって前記樹脂芯材、前記クッション材、および前記表皮材が縫い合わされ、かつ、その縫い合わせの縫い目からなる縫製デザイン模様が前記キルティング調模様内に設けられていること
    　を特徴とする請求項１又は２に記載の自動車用内装部品。     The resin core material has a plurality of holes formed in accordance with the positions of the concave portions of the unevenness.
    The resin core material, the cushion material, and the skin material are sewn together by sewing threads passed through the plurality of holes, and a sewing design pattern composed of the seams of the stitches is provided in the quilting-like pattern. The automobile interior part according to claim 1 or 2, characterized in that.
  4. 　前記樹脂芯材を射出成形する時の溶融樹脂と接触する前記クッション材の面に、該クッション材側への当該溶融樹脂の含侵やその溶融樹脂の熱による前記クッション材の溶融を防止するバリア層を設けたこと
    　を特徴とする請求項１又は２に記載の自動車用内装部品。
          A barrier that prevents the molten resin from impregnating the surface of the cushion material that comes into contact with the molten resin during injection molding of the resin core material into the cushion material side and melting the cushion material due to the heat of the molten resin. The automobile interior part according to claim 1 or 2, wherein a layer is provided.
PCT/JP2020/021370 2020-05-29 2020-05-29 Interior component for automobile WO2021240793A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10291431A (en) * 1997-04-21 1998-11-04 Mitsuboshi Belting Ltd Air bag integrated instrument panel and manufacture thereof
WO2008086105A2 (en) * 2007-01-05 2008-07-17 Johnson Controls Technology Company Method of forming a trim panel with a localized deep soft area and trim panel obtained thereby
JP2014140974A (en) * 2013-01-22 2014-08-07 Toyoda Gosei Co Ltd Production method of product with skin

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10291431A (en) * 1997-04-21 1998-11-04 Mitsuboshi Belting Ltd Air bag integrated instrument panel and manufacture thereof
WO2008086105A2 (en) * 2007-01-05 2008-07-17 Johnson Controls Technology Company Method of forming a trim panel with a localized deep soft area and trim panel obtained thereby
JP2014140974A (en) * 2013-01-22 2014-08-07 Toyoda Gosei Co Ltd Production method of product with skin

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