JPH035126Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is for use in vehicles, where the surface of a base material, such as a molded base material molded into a three-dimensional shape such as a molded door trim of an automobile, is coated with a skin material with a cushion layer. This relates to interior materials.

(Prior art) Conventional interior materials for vehicles of this type include a skin material with a cushion layer, which is made by laminating a cushion material made of foamed plastic on the back side of the skin, and a skin material with a cushion layer laminated on the back surface of the skin material, and the back surface of the cushion material is laminated onto the surface of the base material. Although it is normal to have a
Publication No. 37224) Such vehicle interior materials have a flat and monotonous skin surface, and therefore have poor design effects. Therefore, it is known that a pattern is formed on this cushion layered skin material using a weld mold to give the surface a three-dimensional effect.
In this case, the cushion material made of foamed plastic is divided by the pressure applied by the weld mold and melted, and is difficult to hold in a predetermined shape. It had to have a three-layer structure with overlapping base fabrics.

(Problem that the invention aims to solve) However, if a pattern is formed using a weld mold by layering a cushion material made of a backing fabric and foamed plastic with an outer layer, it not only costs money in terms of raw materials, but also causes problems in terms of production. But it takes a lot of effort,
The problem is that it cannot be mass-produced cheaply.

(Means for Solving the Problems) The present invention was completed with the aim of creating an interior material for vehicles that solved the above-mentioned problems. A band-shaped welded portion is formed in a part of the cushion layer by partially welding the layer and the skin layered on the surface thereof, and a plurality of bulges defined by the band-shaped welded portion are formed on the back side of the cushion layer. This is characterized in that the surface of the base material is coated with a skin material with a cushion layer formed thereon.

(Function) The product constructed in this way is used by having a substrate attached to the inner surface of the vehicle body in the same way as conventional vehicle interior materials, but in the present invention, the skin material with a cushion layer is used in numerous ways. It has a two-layer structure consisting of a fibrous cushion layer made of entangled heat-fusible fibers and an outer skin.
Not only can costs be reduced in terms of raw materials, weld processing is also easy and mass production is possible at low cost. Moreover,
A fibrous cushion layer made of countless heat-meltable fibers entangled with the outer skin layered thereon is welded at a narrow band-shaped welded part where a part of the cushion layer is melted by a melting tooth pattern. As a result, the cushion layer is not separated at the welded part and is integrated with the outer skin with sufficient strength, and although it does not use a backing fabric, it is equivalent to or even better than a layer that uses a backing fabric. It has superior strength and does not lose its shape over a long period of time. Furthermore, the back surface of the cushion layer is divided into a plurality of bulges by the narrow band-shaped welded parts, and the bulges are adhered to the substrate. Even if the surface is curved, it does not wrinkle, and together with the shape retention of the band-shaped welded parts, the cushion layered skin material ensures an appropriate coating state on the base material, and can be used for a long period of time. It exhibits an excellent interior decoration effect over a long period of time.

(Example) Next, the present invention will be described in detail using the illustrated automobile door trim as an example. Reference numeral 1 is a base material such as a molded base material for a door trim having a partially uneven curved surface. , 2 is a skin material with a cushion layer coated on the surface of the base material 1. The cushion layer-attached skin material 2 is made by welding a fibrous cushion layer 3 made of entangled heat-fusible fibers and a skin 4 layered on the surface of the cushion layer 3 using a tooth mold for melting and partially welding them together. The cushion layer 3 has a narrow band-shaped welded portion 5, a part of which is melted and solidified into a band-like shape.
is formed. The surface of the skin 4 of the cushion layer skin material 2 has a width of 1 due to the tooth pattern.
A linear concave pattern 6 of about ~3 mm is formed, and the back surface of the cushion layer 3 has a width of about 3 to 8 mm and a wall thickness.
A plurality of bulges 7 are formed which are partitioned by strip-like welded parts 5 having a narrow width of about 0.5 to 2 mm. In addition,
The length of the illustrated fibrous cushion layer 3 is 50~
A copolymer fiber of acrylic resin and vinyl chloride resin (for example, Kanekalon S type, manufactured by Kanebuchi Kagaku Co., Ltd., trade name) with a thickness of 70 mm and a thickness of 1.5 to 2.4 denier is processed with needles and intertwined to make it slightly stiffer. It consists of a main layer 3a with a length of about 5 to 15 mm and a weight of about 100 to 450 g/ ^m2 , and a flexible surface layer 3b with a thickness of about 2 to 6 mm, which is made by intertwining the copolymer fibers in a rolled cotton shape. ,
On the other hand, the skin 4 is made of leather or non-meltable woven fabric, but is not limited to such materials. The cushion layer-attached skin material 2 is partially adhered to the base material 1 with the bulging portion 7 via an adhesive to form a gap 8 between the base material 1 and the band-shaped welded portion 5. is forming.

(Effects of the invention) As is clear from the above description, the present invention has a two-layer structure of the skin and a special cushion layer, so it can be mass-produced at low cost. Since the width band-shaped welding part is partially welded and integrated, it is possible to ensure sufficient strength as a whole, and the shape does not deform. It has various advantages such as being able to obtain an appropriate covering condition without wrinkles due to its smooth texture, and also exhibiting an excellent interior decoration effect with a rich three-dimensional effect, and is superior to conventional vehicle interior materials. It has great practical value as it solves the problem of.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention, and FIG. 2 is a partially sectional view of the main parts. 1: base material, 2: skin material with cushion layer, 3: fibrous cushion layer in which countless heat-fusible fibers are entangled, 4: skin, 5: band-shaped welded part, 7: bulged part.

Claims (1)

[Scope of utility model registration request] A fibrous cushion layer 3 in which countless heat-meltable fibers are entangled and a skin 4 layered on its surface are partially welded to form a belt-shaped welded portion 5 in a part of the cushion layer 3. A plurality of bulges 7 defined on the back surface of the cushion layer 3 by the band-shaped welded parts 5
A skin material 2 with a cushion layer formed by forming a base material 1
An interior material for a vehicle, characterized in that the surface of the vehicle is coated.