JPH035195B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing a seat skin having a pattern of large undulations, such as a trim cover for a loose cushion seat.

BACKGROUND ART Conventionally, when manufacturing this type of seat skin, a foam material 3 of a constant thickness is interposed between a skin material 1 and a backing material 2, as shown in FIG. 1a. After laminating the three parts, the foam material 3 is partially compressed and the three parts are welded or sewn together in a square shape or in a straight line, and the welded or sewn parts a are recessed in a concave shape to adjust the spacing between the recessed parts. An uneven pattern is formed by raising the inner surface b in an irregular manner.

Problems to be Solved by the Invention However, in the seat skin, the foam material 3 bulges out to inflate the backing material 2, as shown in FIG. Therefore, it is not possible to form a large uneven pattern rich in luxury.

An object of the present invention is to provide a method for manufacturing a seat skin that can easily produce a seat skin with a large uneven pattern by preventing the foam material from bulging toward the back side. do.

Means for Solving the Problems In the method for manufacturing a seat skin according to the present invention, a foam material formed to a constant thickness is interposed between a skin material and a backing material to form a sheet skin having an uneven pattern. After joining together, a rigid cloth such as cotton or canvas sheet is used to support the convex portions of the concavo-convex pattern bulge toward the surface side with a narrow plane area or to match the spacing between adjacent concave portions of the concavo-convex pattern. is applied to the back side of the backing material.

Function: In this sheet skin manufacturing method, after the skin material, the foam material, and the backing material are joined together, the convex portions in the concave-convex pattern are formed in a flat area that matches the spacing between adjacent concave portions in the concave-convex pattern, or has a narrow planar area. Since it is only necessary to stretch the webbing for supporting the parts so as to bulge out to the front side on the back side of the backing material, it is possible to form a large uneven pattern with an extremely simple operation.

Embodiments The following description will be made with reference to FIGS. 2 to 4.

The illustrated embodiment is applied to manufacturing a seat skin A that forms a loose cushion sheet, and this seat skin A has a pattern of large undulations formed on the surface side in order to create a luxurious appearance. things are being done.

This seat skin A is made by interposing a relatively soft spongy foam material 3 between a skin material 1 such as polyvinyl chloride and a backing material 2 such as nylon or cloth as shown in FIG. By stitching or welding them in square length or straight lines, the skin material 1, backing material 2, and foam material 3 are formed to have an uneven pattern on the surface side, as in the conventional example. When joining these three parts together, it is formed as a skin for a loose cushion sheet, so it is easier to join than when forming a normal trim cover.
It is preferable to join to the skin material 1 a foam material 3 and a backing material 2 which have a wide area and have a gentle clearance. On the back side of the backing material 2 joined together, a webbing 4, which is more rigid than the covering material 1, such as cotton or canvas sheet, is further stretched. It is formed to have a planar area that is equal to or slightly narrower than the interval X between adjacent concave portions a of the concavo-convex pattern. Further, when a plurality of irregularities are continuously formed, the sheet is cut and formed by adding the planar area corresponding to each interval. When installing the webbing 4 in tension, please adjust the webbing 4 along the edge of the area where the uneven pattern is formed.
It is sufficient to sew the edges of the pattern, or if necessary, it may be sewn and fixed in accordance with the main parts of the uneven pattern.

In the seat skin manufactured in this way, the webbing 4 is rigid and has at least the concave portions a where the concave and convex patterns are adjacent to each other.
Since the spacing and the planar area match, the backing material 2 is pushed up and supported against the foam material 3 which expands under pressure. Therefore, since the concave portion b of the skin material 1 is greatly raised by receiving the volume of the foam material 3 that had bulged the backing material 2, it is formed as a sheet skin with a relatively large shape on the surface side of the uneven pattern. become able to. In addition, the webbing 4 is made by joining the skin material 1, the foam material 3, and the backing material 2 into one, and then the backing material 2
Since it is sewn to the back side of the paper, it can be easily and accurately tensioned. This seat skin A is placed on the cushion foam layer B of the seat body, and is loosely attached to the seat frame C with the side skin material 5 that is continuously sewn to the edge of the uneven patterned area. It can be used to form a cushion.

Effects of the Invention As described above, according to the method for producing a seat skin according to the present invention, a concavo-convex pattern can be formed with relatively large undulations, so that a sheet that is luxurious in appearance and rich in fashionability can be easily formed. This is what makes it possible.

[Brief explanation of drawings]

Figures 1a and b are explanatory diagrams showing the manufacturing process of the seat skin according to the conventional example, Figure 2 is an explanatory diagram showing the manufacturing process of the seat skin according to the present invention, and Figure 3 is the seat skin obtained by the same method. FIG. 4 is an explanatory diagram showing a state in which the seat skin is attached. a: concave portion, b: convex portion, x: interval between concave portions, 1: skin material, 2: backing material, 3: foam material, 4: webbing.

Claims (1)

[Claims] 1 A foam material formed to a certain thickness is interposed between the skin material and the backing material, and after the three are joined together as a sheet skin having an uneven pattern, the interval between adjacent concave portions of the uneven pattern is determined. A sheet skin characterized by having a rigid cloth such as cotton or canvas sheet stretched on the back side of a backing material, which bulges out and supports convex portions with a concavo-convex pattern on the front side in a narrow planar area that coincides with or has a narrow planar area. manufacturing method.