JPS6312788B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION -Field of Industrial Application- The present invention relates to the improvement of materials used for the interior of automobiles, and in particular to an interior material for automobiles having a wood texture.

-Prior Art- As is well known, in the case of automobile interior parts such as instrument panels and armrests, there are cases where it is desired to obtain a solid interior by finishing the interior with an appearance and texture similar to that of natural wood. In such cases, conventionally, a moldable resin core material 1 is used as shown in FIG.
A sheet 3 made of vinyl chloride or the like with a print 2 such as a wood grain pattern printed on the surface of the sheet 3 is adhered with an adhesive (see Automotive Engineering Zensho Vol. 13, Passenger Car Body, published by Sankaido).

However, although such imitation laminated materials can have the appearance of natural wood by changing the wood grain pattern printed on them, they do not absorb sweat because the printed sheets such as vinyl chloride do not have hygroscopic properties. It doesn't feel good when you touch it with your bare hands, and it can't even match the warm feel that is unique to natural wood.

By the way, the recently developed wood-based vinyl chloride composite resin material A shown in Figure 2 is obtained by mixing wood powder such as wood powder or crushed wood pieces into a resin mainly composed of vinyl chloride. It has properties that closely resemble natural wood in terms of appearance and feel, and has the potential to replace the aforementioned imitation laminate materials. However, the appearance of a single wood-based vinyl chloride composite resin material is determined by the wood that is mixed in.
It lacks the flexibility of appearance like a printed pattern, and it feels good to the touch because the wood mixed in has water absorption properties, but if you touch it with dirty hands, it will get dirty quickly, and it has no wear resistance and some parts will wear out. It has disadvantages such as storage, and it is difficult to use it as an interior material for automobiles.

-Object of the Invention- The object of the present invention is to overcome the above-mentioned disadvantages of the wood-based vinyl chloride composite resin material and to obtain an interior material for an automobile that has a woody appearance and feel to the touch.

-Structure of the Invention- In order to achieve this object, the present invention provides a core material of a wood-based vinyl chloride composite resin obtained by mixing wood powder such as wood powder or crushed wood pieces into a resin mainly composed of vinyl chloride. It is proposed to cover the surface with a partially perforated vinyl chloride sheet.

-Example- Hereinafter, details of an example of the present invention will be explained with reference to FIGS. 3 and 4.

In Fig. 3 and Fig. 4, the code 1A is wood flour;
It is a wood-based vinyl chloride composite resin core material obtained by mixing wood powder such as crushed wood pieces in a range of 3 to 50 weight percent into a resin mainly composed of vinyl chloride resin, and the concentric material 1A has an appearance, It has the same texture and properties as natural wood, and is both hygroscopic and breathable. Then, a vinyl chloride sheet 3 is welded to the surface of the same wood-based vinyl chloride composite resin core material 1A.
A has a woodgrain pattern print 2 applied to its surface, and is covered by a welding method such as a high frequency welding method or a heat welding method. In addition, the vinyl chloride sheet 3A has a plurality of deformed holes 4 that are bored so as not to disturb the continuity of the wood grain pattern print 2, and the wood-based vinyl chloride composite resin core material 1A is formed through these deformed holes 4.
The fabric surface is exposed to the outside. Of course, the wood-based vinyl chloride composite resin core material 1A can be made to have the same color as the wood-grain pattern print 2 by mixing a pigment into the mixed resin, but I dare to make the wood-based vinyl chloride composite resin core material 1A the same color as the wood-grain pattern print 2 and the wood-based vinyl chloride composite resin core. By changing the color of the materials, it is possible to create a varied interior design, such as forming a wood grain pattern in the four holes.

Since the illustrated embodiment has the configuration described above, not only can an appearance similar to natural wood be obtained by using a sheet of vinyl chloride or the like printed with a wood grain pattern, but also the wood grains exposed from the deformed holes 4 can be The hygroscopicity of the surface of the PVC composite resin core material 1A gives it a good feel, and the PVC sheet 3A protects the surface even if it is touched by dirty hands, and if the surface becomes dirty, it can be wiped off. This prevents it from getting dirty early and from wearing out, which is the case with conventional natural wood, which has poor wear resistance.

- Effects of the Invention - As is clear from the above description, according to the present invention, the appearance and feel of the interior of an automobile are similar to those of natural wood, the surface is wear-resistant, and can be wiped clean even when dirty. material can be obtained.

[Brief explanation of the drawing]

Figure 1 is an enlarged cross-sectional view of a conventional automobile interior material.
Fig. 2 is a cross-sectional view of a conventional wood-based vinyl chloride composite resin veneer corresponding to Fig. 1, Fig. 3 is an enlarged perspective view of the main parts of an automobile interior material according to the present invention, and Fig. 4 is taken along the - line in Fig. 3. FIG. 1...(Conventional) resin core material, 1A...Wood-based vinyl chloride composite resin core material, 2...Wood grain print, 3
A... Vinyl chloride sheet, 4... Deformed hole.

Claims (1)

[Claims] 1. The surface of a wood-based vinyl chloride composite resin core material obtained by mixing wood powder such as wood powder or wood chips into a resin mainly composed of vinyl chloride is coated with a partially porous vinyl chloride sheet. Automotive interior materials featuring: