JP2005343384A - Interior material for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an interior material for a vehicle capable of obtaining good tactile feeling and enhance light-resistance. <P>SOLUTION: The same tactile feeling as a hair transplantation layer can be obtained by selecting a polyurethane resin as a material of a skin material 4 and physically roughening a surface of the skin material 4 to form a fine projection/recession shape 5. In order to obtain the same tactile feeling as the hair transplantation layer, a physical property of the polyurethane resin is the optimum. Further, since a cushion layer 4a is included in at least a part of the skin material 4, softness is given to the surface of the skin material 4 and the further good tactile feeling is obtained. Because of a structure that a foaming resin layer 3 is provided between the skin material 4 and a core material 2, flexibility is generated on the skin material 4 itself and the tactile feeling is further enhanced. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an interior material disposed in a vehicle interior of a vehicle.

Conventional vehicle interior materials include, for example, instrument panels, door trims, pillar garnishes, molded ceilings, and the like. These interior materials are made of resin, and there is a demand to form a flocked layer on the surface in order to improve the tactile feel of the surface. Therefore, conventionally, a cloth member having flocking is formed in a mold together with the interior material to form a flocking layer on the surface of the interior material (for example, Patent Document 1).
JP-A-8-148204

  However, in such a conventional technique, since the pile forming the flocked portion of the flocked layer is not durable, there is a possibility that the flocked portion may cause light degradation when exposed to strong sunlight.

  The present invention has been made by paying attention to such a conventional technique, and provides an interior material for a vehicle that can provide a good tactile feel and can improve light resistance.

  The invention according to claim 1 is characterized in that it has a skin material formed of a polyurethane-based resin, and a fine uneven shape roughened by physical processing is formed on the surface of the skin material.

  The invention according to claim 2 is characterized in that a cushion layer made of a polyurethane resin foam or a polyolefin resin foam is included in at least a part of the skin material.

  The invention according to claim 3 is characterized in that the skin material is joined to the core material through the foamed resin layer.

  According to the invention described in claim 1, the same tactile sensation as that of the flocked layer is obtained by selecting a polyurethane-based resin as a material for the skin material, and physically roughening the surface of the skin material to form a fine uneven shape. Can do. In order to obtain the same tactile sensation as the flocked layer, the physical properties of the polyurethane resin are optimal. Moreover, light resistance can be improved.

  According to the invention described in claim 2, since the cushion layer is included in at least a part of the skin material, softness is imparted to the surface of the skin material, and a better tactile sensation is obtained.

  According to the invention described in claim 3, since the structure has the foamed resin layer between the skin material and the core material, the skin material itself is flexible and the tactile sensation is further improved.

  For the purpose of providing a vehicle interior material capable of improving light resistance in addition to providing a good tactile sensation, a skin material formed of a polyurethane-based resin is provided, and a physical surface is provided on the surface of the skin material. This was realized by forming a fine uneven shape roughened by mechanical processing. DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, the best embodiment of the invention will be described with reference to the drawings.

  1 and 2 show a first embodiment of the present invention. FIG. 1 shows the entire instrument panel 1 as an “interior material”. FIG. 2 shows a cross-sectional structure of the instrument panel 1.

  The instrument panel 1 is mainly composed of three layers of a core material 2, a foamed resin layer 3, and a skin material 4, and the skin material 4 has a two-layer structure of a surface layer 4a and a cushion layer 4b. On the surface of the surface layer 4a, a fine uneven shape 5 roughened by physical processing such as sandpaper is formed.

  The core material 2 employs a thermoplastic resin that has a proven record as a vehicle material. As the resin material, PP, PP composite material, ABS, PC / ABS, PPO or the like can be used. The foamed resin layer 3 may be anything, but a polyurethane resin foam or a polyolefin resin foam is suitable.

  The cushion layer 4b of the skin material 4 is formed of a polyolefin resin foam, and the surface layer 4a is formed of a polyurethane resin foam. Both the surface layer 4a and the cushion layer 4b forming the skin material 4 are preferably low in hardness, and the JISA hardness is preferably 35 or less.

  The fine uneven shape 5 on the surface of the skin material 4 is easier to work if it is formed in a flat state before being molded with the core material 2, but the fine uneven shape 5 is formed after being integrally formed with the core material 2. It can be formed.

  The skin material 4 on which the fine uneven shape 5 is formed in advance is formed into a desired shape, and is set together with the core material 2 in a mold for injecting foamed resin, and in the space between the skin material 4 and the core material 2 By injecting a material as the foamed resin layer 3, the instrument panel 1 of this embodiment is molded.

  Since the molded instrument panel 1 has a foamed resin layer 3 between the skin material 4 and the core material 2, it is lightweight and has good heat insulation properties, and gives flexibility to the entire skin material 4.

  According to this embodiment, a polyurethane resin is selected as the material of the skin material 4, and the surface of the skin material 4 is physically roughened to form the fine uneven shape 5, thereby obtaining the same tactile sensation as the flocked layer. Can do. In order to obtain the same tactile sensation as the flocked layer, the physical properties of the polyurethane resin are optimal. Moreover, light resistance can be improved.

  Moreover, since the cushion layer 4b is included in a part of the skin material 4 and the surface layer 4a itself is a flexible foam, softness is imparted to the surface of the skin material 4 and a particularly good tactile sensation is obtained. . The foamed resin layer 3 under the skin material 4 also imparts flexibility to the skin material 4 itself and contributes to further improvement in tactile sensation.

  FIG. 3 is a diagram showing a second embodiment of the present invention. In the second embodiment, the surface layer 6a of the skin material 6 is formed of a non-foamed polyurethane resin. Thus, even if the surface layer 6a is not formed of a polyurethane-based resin foam, since the cushion layer 6b is included on the lower side thereof, softness is imparted to the surface of the skin material 6 and good tactile sensation is obtained. And light resistance can be improved.

  In the above embodiment, the cushion layers 4 b and 6 b are formed on the skin materials 4 and 6. However, the skin materials 4 and 6 such as the foamed resin layer 3 are flexible under the skin materials 4 and 6. In the case where there is a layer that imparts property, cushion layers 4b and 6b are not necessarily provided on the skin materials 4 and 6. And although the instrument panel 1 was taken as an example as an interior material, it is not limited to this, A door trim, pillar garnish, a molded ceiling, and others may be sufficient.

The perspective view which shows the instrument panel which concerns on 1st Example of this invention. Sectional drawing which follows the arrow SA-SA line in FIG. Sectional drawing equivalent to FIG. 2 which concerns on 2nd Example of this invention.

Explanation of symbols

1 Instrument panel (interior material)
2 Core material 3 Foamed resin layer 4, 6 Skin material 4a, 6a Surface layer 4b, 6b Cushion layer 5 Fine uneven shape

Claims (3)

  An interior material for a vehicle having a skin material (4) formed of a polyurethane-based resin, and having a fine uneven shape (5) roughened by physical processing on the surface of the skin material (4) . The vehicle interior material according to claim 1,
A vehicle interior material comprising a cushion layer (4b) made of a polyurethane resin foam or a polyolefin resin foam in at least a part of the skin material (4). The vehicle interior material according to claim 1 or 2,
An interior material for a vehicle, wherein the skin material (4) is joined to the core material (2) through the foamed resin layer (3).