JPS6232992A - Method for covering skin material in seat - 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 Industrial Application 1 This invention relates to an improvement in a method of covering a skin material on a sheet.

"Prior Art" For example, in a seat made of a seat frame, a padding material, and a skin material, as seen in vehicle seats such as automobiles, the seat frame is inserted into a hollow part of the padding material in advance to form an integral part, and then the above-mentioned Generally, a method of covering the surface of the pad material by covering the surface of the pad material with a skin material in the shape of a wrapping is generally adopted.

However, with this coating method, there are disadvantages such as the need for a large amount of force to cover the skin material, the assembly work such as positioning the skin material, and the tendency for local wrinkles to occur on the surface of the skin material. was there. These difficulties are mainly due to the following factors.

(1) In order to prevent the occurrence of wrinkles on the outer surface as much as possible, the shape and dimensions of the skin material are made slightly smaller than the pad material, and the skin material is forcibly placed over the pad material and stretched.

(2) Therefore, a large tension (approximately 10 kg) is required to cover the skin material.

(3) Furthermore, the skin material is generally soft and has an irregular shape, and the covering work is performed by the operator's senses, making it difficult to position it easily.

(4) Further, in areas where the shape of the skin material changes significantly, tension is applied locally, causing wrinkles to occur on the surface of the skin material.

[Problems to be Solved by the Invention] In view of the above-mentioned problems, the present invention facilitates the work of covering the skin material, makes the tension applied to the skin material uniform, and eliminates wrinkles on the surface of the skin material. An object of the present invention is to provide a method for covering a skin material on a sheet, which is convenient for mass production and free from oxidation.

Means for Solving Problem 1] The method for covering the skin material in the sheet of the present invention is to insert the pad material into the skin material formed in the shape of a bag with one end open through the opening, and then to cover the skin material in the sheet of the present invention. After the seat frame is press-inserted into a hollow portion provided approximately at the center of the material, the opening of the skin material is closed.

[Embodiment 1] An embodiment of the present invention will be described with reference to FIGS. 1 to 5.

1 is a thin and soft skin material formed into a bag shape with one end open; 2 is a padding material made of urethane foam or the like; 3 is a seat frame made of a rigid material; for example, the seat back B as shown in FIG. 5, and is integrally combined with a seat cushion C via a seat reclining adjuster 6 to complete a seat for a vehicle such as an automobile.

Note that the embodiment of the seat back B will be described below as a representative example, and the explanation of other embodiments such as the seat cushion C will be omitted. Cover the surface of seat back B! As shown in FIG.
A hollow part 16 with an opening at one end is formed to be slightly larger than the pad material 2 described later, and around the opening, edges 12, 13, 14, 15 are formed in four directions at the end of the base 11 of the skin material 1. It has been extended. The pad material 2 forming the elastic core material of the seat back B has a base body 21 of the pad material 2 as shown in FIG.
A hollow part 22, 23, 24 with one end opening approximately in the center of the
is a continuous surface having a U-shaped cross section and is formed within the base 4 integrally 21 to a predetermined depth dimension.

As shown in FIG. 1, the seat frame 3 on which the skin material 1 is spread over the surface of the pad material 2 has side edges 32 and 33 formed in a U-shaped cross section on both sides of the base surface 31, and side edges 32.
The end edge of 33 is sloped to be narrow at the insertion tip and wide at the proximal end, and a hole 34 is bored in the proximal end.
A female screw member 4 is fixed to the inner surface of the side edges 32 and 33 at a position concentric with the hole 34.

Next, a method for attaching the skin material 1 will be explained step by step. First, as shown in FIG. 1, the pad material 2 is inserted into the hollow part 16 from the opening of the skin material 1 to cover it in advance. Next, a hollow portion 22 provided approximately in the center of the base 21 of the pad material 2
．． 23. Press and insert the seat frame A3 into 24 with the base surface 31 and side edges 32 and 33 corresponding to each other. After the seat frame 3 is completely inserted into the hollow part 22.23.24 of the padding material 2, each edge 12.13.14 formed at the opening edge of the skin material 1 as shown in FIG. .Fold 15 one after another and attach a fastener 5 such as a hog ring or Velcro.
The opening of the skin material 1 is closed by.

Then, the seat back B is screwed to the seat frame 3 via the seat reclining adjuster 6 with a hole 16 made in the skin material 1 in accordance with the position of the hole 25 made in the pad material 2, as shown in FIG. It is combined with the seat cushion C to complete the seat.

By molding the skin material 1 to be slightly larger than the pad material 2, a large force is not required when covering the skin material 1 of the pad material 2, and the skin material 1 can be easily covered with the pad material 2.
can be coated with

Further, a hollow portion 22.2 formed in the base surface 21 of the pad material 2
3.24 is the base surface 31 and side piece 32 of the seat frame 3
．． By pressing and inserting the seat frame 3 into the seat frame 3, the pad material 2 can be uniformly expanded in the outer circumferential direction. Therefore, the skin material 1 that has been coated on the surface of the pad material 2 in advance can be elastically expanded and brought into uniform close contact with the surface of the pad material 2.

Further, the side pieces 32, 33 of the seat frame 3 are tapered at the insertion end side, and the hollow portions 22, 23 of the pad material 2 are tapered.
This is to facilitate pressure insertion into the pads 2 and 4 and to gradually expand the pad material.

[Effects of the Invention] In the method of covering a skin material in a seat of the present invention, a skin material slightly larger than the pad material is coated on the pad material in advance, and then the seat frame is press-inserted into the hollow portion of the pad material. As a result, the pad material can be uniformly expanded and the skin material can be elastically and uniformly expanded, and unlike conventional methods, large tension is not required to cover the skin material, making installation work extremely easy. Wrinkles do not occur on the skin material. Furthermore, it is useful for improving productivity, reducing man-hours, and reducing costs, and is extremely convenient and practically useful for mass production of seats for vehicles such as automobiles.

[Brief explanation of drawings]

Figure 1 is a perspective view of the padding material inserted in advance into the hollow part of the upholstery material and the seat frame that is press-inserted into the hollow part of the padding material, Figure 2 is a perspective view of the upholstery material, and Figure 3 is the padding material. FIG. 4 is a perspective view of the seat back obtained by pressing and inserting the seat frame in FIG. 1 into the hollow part of the pad material and closing the opening in the upholstery material. FIG. 2 is a side view of a vehicle seat in which a back and a seat cushion are integrally configured. 1... Skin material, 2... Pad material, 22.23.
24...Hollow part, 3...Seat frame.

Claims (1)

[Claims] A method for covering a skin material in a sheet comprising a pad material made of an elastic body, a seat frame disposed inside approximately the center of the pad material, and a skin material covering the surface of the pad material, wherein one end is open. A pad material is inserted into the bag-shaped skin material through its opening, and then a seat frame is press-inserted into the hollow part provided approximately in the center of the pad material, and then the opening of the skin material is inserted. A method for covering a skin material in a sheet, characterized in that the sheet is closed.