JPS6198532A - Interior finish member for automobile - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of the Invention) The present invention relates to an automobile interior member in which a cloth skin material is adhered to the upper surface of a core material.

(Prior art and its problems) In general, interior parts used for the interior of automobiles are reinforced with hardboard or resin board, and the surface of the core material is covered with a decorative skin material or padding material such as urethane foam. It is constructed by pasting a skin material.

This skin material is made of a thermoplastic sheet such as a vinyl chloride sheet, and is integrally attached to the core material by vacuum forming along the surface shape.

Furthermore, in recent years, with the trend towards interior design of automobile interiors, decorative sheets such as fabrics and carpets have been increasingly used in place of the above-mentioned thermoplastic sheets to give a soft and luxurious feel.

For example, a resin plate or a composite resin plate is preheated and softened, the softened core material is placed on a lower press die, and a fabric skin material is further placed on the upper surface thereof. Thereafter, the upper press mold is fitted to the lower mold, and the core material is formed by pressing, and at the same time, the fabric skin material is attached along the upper surface of the core material.

However, conventional cloth facing materials generally use PVC-acrylic fibers as the ground fabric and nylon fibers as the pile fabric, and this Pv
Since C-acrylic fiber is a spun yarn, its thickness is limited, and during molding, the core material under the skin material is exposed in areas where the expansion rate is high, which significantly impairs the decorative effect.

Moreover, since the elastic modulus of this PVC-acrylic fiber is not so large, it has been pointed out that it cannot follow complicated molding shapes, and that it imposes restrictions on the product shape.

In addition, when the core material is cold press molded, PvC
- Since acrylic lIN cannot be expected to elongate unless it is heated in advance, the preheating process of these fabric skin materials is added, which increases the number of man-hours and has the drawback of leading to increased costs.

(Purpose of the Invention) Taking these circumstances into consideration, the present invention has been developed to ensure that when molding the core material, it has good followability with the resin core material and that the core material is exposed in areas where the expansion rate is high. The object of the present invention is to provide an automobile interior member using a cloth skin material that can prevent the above-mentioned problems.

(Structure and Effects of the Invention) In order to achieve the above object, the present invention provides a fabric skin material obtained by weaving or mfc m-fibers and pasting it on the upper surface of a core material by vacuum forming or compression molding. In the automobile interior material, the cloth skin and material are made by combining the outer periphery of urethane elastic yarn.
It is characterized by being composed of a ground fabric covered with fiber and a synthetic fiber pile fabric woven or knitted on the surface of the ground fabric.

Therefore, since the cloth skin material according to the present invention has a structure in which the outer periphery of the urethane elastic thread is covered with synthetic fiber as a grounding material, even when the resin core material is molded into a complicated shape, the urethane elastic thread can be Since it has excellent extensibility even under stress, the fabric skin material follows the core material due to this elastic action, and defects such as peeling of the skin material do not occur.

In addition, in the present invention, a ground fabric in which the outer periphery of urethane elastic yarn is covered with synthetic fiber, and a synthetic I! Since it uses a fabric skin material made of #1 Vile fabric, it is different from conventional P.
Unlike spun yarns such as VC-acrylic fibers, the diameter of the urethane elastic yarns can be set as appropriate depending on the shape of the product, so the surface of the core material is not exposed in areas where the expansion rate is high. We are able to provide products of uniform quality.

Moreover, urethane elastic thread has poor mechanical properties;
In the fabric skin material according to the present invention, the outer periphery of these urethane elastic threads is covered with synthetic fibers such as polyamide, polyvarnish, chill, etc., so problems in terms of mechanical strength are eliminated.

(Description of Embodiment) Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an explanatory diagram of a cloth skin material used in the present invention.

In the figure, this cloth skin material 1 is composed of a ground fabric 2 and a pile fabric 3 woven or knitted on the surface of the ground fabric 2.

More specifically, the ground fabric 2 is composed of a urethane elastic thread 4 as a base and a synthetic fiber 5 covering the outer periphery of the urethane elastic thread 4. The synthetic Il fiber 5 is made of polyamide, polyester, etc., which have wear resistance, weather resistance, and heat resistance.

Use soaked fibers that are water resistant.

The material of the pile fabric 3 is poly or amide.

Synthetic #IN such as polyester is used.

The weave of the fabric skin material 1 is not particularly limited as long as it is woven or knitted with 11M, such as plain weave, double knit, tricot, circular knit sinker pile, etc.

FIGS. 2 and 3 are explanatory views of the process of attaching the cloth skin material 1 and the resin core material 6. FIG. Fig. 2 shows the vacuum forming process, and Fig. 3 shows the case using the cold press forming process.

In FIG. 2, the resin core material 6 is prepared by pouring a mixture of polypropylene and wood powder onto a sheet, softening it by heating, and then molding it into a desired shape using a cold press mold (not shown). Perforations 6a for vacuum forming are provided at appropriate positions.

On the other hand, the stn of the fabric skin material 1 is lined with a non-breathable backing material 7 such as polyethylene foam.

Then, the resin core material 6 is placed on the table 8, and the outer periphery of the fabric skin material 1 lined with the backing material 7 is clamped by a clamp device @9.

Then, the table 8 is raised by the drive of 1 fill of hydraulic pressure (not shown), and the cloth skin material 1 whose outer periphery is held by the clamp device 9 and the resin core material 6 are superposed.

Thereafter, the air between the cloth skin material 1 and the resin core material 6 is sucked by the operation of the vacuum pump 10, and as a result, the cloth skin material 1 is integrally attached along the upper surface of the resin core material 6. It is.

In the figure, reference numeral 11 indicates an opening for vacuum forming, and reference numeral 12 indicates a core material mounting table provided with perforations 13.

In addition, the cloth skin material 1 according to the present invention easily follows the surface shape of the resin core material 6 with small stress, and can be used under negative pressure (approximately 0°6 to 1,0 KIJ) in commonly used vacuum forming.
/cm2), and it easily follows the curved shape of the resin core material 6, even in areas with a high expansion rate (symbol 6b in Figure 2), so it does not hinder molding. This does not occur, and problems such as peeling of the fabric skin material 1 do not occur. In addition, these cloth skin materials 1
Since the surface of the resin core material is never exposed, the beauty of the product can be maintained.

Next, an embodiment in which the cloth skin material 1 and the resin core material 6 are integrally bonded together by cold press molding will be described in detail with reference to FIG. 3.

In this embodiment, the resin core material 6 is heated and softened by a heater (not shown), and the resin core material 6 is
Press mold 1 with fabric skin material 1 polymerized on the top surface.
4 on the lower mold 15.

After that, the press upper mold 16 descends, and the lower mold 15 and upper mold 1
At the same time, the resin core material 6 and cloth skin material 1 are adhered by pressing 6, and at the same time, they are formed into a desired shape.

In this embodiment, since the fabric skin material 1 is attached at the same time as the resin core material 6 is formed, the work process is significantly simplified, and the fabric skin material 1 is lined with a non-breathable backing material in advance. Since there is no need to do so, it is possible to significantly reduce costs.

[Brief explanation of the drawing]

The drawings do not show one embodiment according to the present invention, and FIG. 1 is a schematic diagram of a cloth skin material used in the present invention, and FIGS.
The figures are explanatory diagrams showing the adhesion process of the cloth skin material and the resin core material, FIG. 2 is an explanatory diagram of vacuum forming process, and FIG. 3 is an explanatory diagram of press molding process. 1... Cloth skin material 2... Ground fabric 3... Pile fabric 4... Urethane elastic thread 5... Synthetic fiber 6... Resin core material 7... Backing material 8... Table 10...Vacuum pump 14...Press mold Fig. 1

Claims (1)

[Claims] (1) In an automobile interior component in which a cloth skin material obtained by weaving or knitting fibers is adhered to the upper surface of a core material by vacuum forming or compression molding, the cloth skin material is made of urethane-based elastic threads. 1. An interior member for an automobile, comprising a ground fabric whose outer periphery is covered with synthetic fibers, and a synthetic fiber pile fabric woven or knitted on the surface of the ground fabric.