JPH0432739B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method of assembling a seat skin to a cushion form, which is mainly applied to constructing a seat for a two-wheeled vehicle.

BACKGROUND ART Conventionally, when manufacturing a seat skin for a two-wheeled vehicle, it is common to stack a skin material, a wadding material, and a backing material and join them together by welding, sewing with a sewing machine, or the like. Among these, sewing using a sewing machine is widely used because the stitch pattern creates a sense of luxury. However, with this machine sewing, thread holes are created at the sewing locations, so rainwater, etc. can enter the inside of the sheet through the thread holes, and the wading material and cushion foam become wet with rainwater, degrading the performance of the cushion. There is a risk.

In order to prevent this rainwater from entering, an adhesive for sealing the thread holes may be applied along the sewn parts on the backing material side. According to this, since the sealing process is performed after the seat skin is sewn, not only will there be no problem when sewing the cover material and backing material across the wading material, but also the sealing process will be effective. It is also preferable because it does not require much effort.

However, when a normal adhesive is simply applied, the hardness of the adhesive after hardening is different from that of the non-adhered area, which may give a feeling of foreign body to the seater.

Problems to be Solved by the Invention The present invention seals the thread holes at the sewing locations with an adhesive, but the seat skin is covered with a cushion form so that the adhesive does not impair the cushioning properties of the sheet. The purpose of the present invention is to provide a method for assembling a seat skin that can be worn.

Means for Solving the Problems In the method of assembling a seat skin to a cushion form of the present invention, after sewing the seat skin by integrally sewing the skin material and the backing material with the wadding material in between, An adhesive that is soft and flexible after hardening is applied along the seams on the backing material side of the skin, and this adhesive seals the thread holes at the seams to form the seat skin into a cushioned form. It is made to adhere.

Function: In this method of assembling the seat skin to the cushion foam, the thread holes in the seat skin are sealed using a flexible adhesive after hardening, which prevents rainwater from entering the cushion foam. Not only can this be prevented, but also the cushioning properties of the sheet can be maintained well due to the properties of the adhesive.

Embodiments The following description will be made with reference to the drawings.

This seat skin is for a two-wheeled vehicle seat, and the skin portion of the seat portion is formed as a trim cover with a wading material 3 interposed between a skin material 1 and a backing material 2. As the skin material 1 and the backing material 2, a synthetic resin sheet such as PVC or a sheet material such as cloth can be used, and as the wading material 3, a foam material such as urethane slab, cotton, etc. can be used. .

These three members overlap the skin material 1 and the backing material 2 with the wading material 3 sandwiched between them, and sew them together using a sewing machine to form a wadding pattern on a flat surface. The sewn location 4 becomes recessed due to the tension of the sewing thread 5, and thread holes 6, 6, . . . are formed by inserting the sewing machine needle therethrough.

For this sewing location 4, adhesive 7 is applied along the recess from the backing material 2 side. As the adhesive 7, a material that is soft and flexible after hardening is used, and specifically, Penguin Cement No. 251254B (trade name, manufactured by Sunstar Chemical Factory Co., Ltd.), which has vinyl chloride as its main component, is used. Can be used.
In addition, if this adhesive 7 is applied in a large amount to the extent that it almost embeds the recess of the sewing location 4, and is applied so as to keep the backing material 2 side almost flat, it will coat the sheet surface against the cushion form, which will be described later. It is easy to put on and the shape retention of the wading pattern on the front side can be made good. The adhesive 7 can be applied with a brush, a paint gun, or the like.

When this adhesive 7 is applied, it is possible not only to hide the sewing area 4 on the backing material 2 side and seal the thread holes 6, 6... Close up thread hole 6, 6...
It can be made to destroy... Since the adhesive 7 is soft and flexible when cured, it easily deforms following the deformation of the entire seat skin, and does not give a feeling of foreign body to the seated person. Since it is embedded in the recess 4, it can be firmly attached without peeling off.

This seat skin C is used as a sheet material forming a seat plane of a two-wheeled vehicle seat. A side skin material (not shown) is sewn and sewn to the edge thereof, and is attached to a cushion form F such as a urethane mold placed on a seat frame (not shown). The end of the seat skin C can be fixed by attaching it to the seat frame with a tassel or the like. In addition, when the adhesive 7 applied to the back side is uncured and adheres to the cushion form F, it can be bonded and fixed to each other, so it is possible to prevent the seat skin C from shifting due to the load of the occupant. .

Effects of the Invention As described above, according to the method of assembling a seat skin to a cushion form according to the present invention, since the thread holes at the sewing location are closed by applying adhesive, the internal wading material and the cushion form are closed. It is possible to prevent rainwater etc. from entering into the sheet, and since the adhesive is soft and flexible after curing, it is possible to maintain good cushioning properties of the sheet. Furthermore, since the adhesive is applied to the backing material side, the appearance is not impaired and a high-class feel can be maintained.

[Brief explanation of drawings]

FIG. 1 is a partially enlarged cross-sectional view of the seat skin used in the method according to the present invention, and FIG. 2 is a partially enlarged cross-sectional view showing the seat skin in a state in which it is adhered to a cushion form. 1...Skin material, 2...Backing material, 3...Wading material, 4...Sewn area, 6, 6...Thread eye hole, 7...
…glue.

Claims (1)

[Scope of Claims] 1. After the seat skin is sewn by sewing the skin material and the backing material together with the wading material in between, and after curing along the sewn parts on the backing material side of the seat skin. A cushion foam characterized in that a soft and flexible adhesive is applied, the thread holes at the sewing location are sealed with the adhesive, and the seat skin is adhered to the cushion foam. How to assemble the seat skin. 2. Claim 1, wherein the seat skin is placed on the cushion foam while the adhesive is not cured, and the seat skin is positioned and fixed on the cushion foam using the adhesive. How to assemble the seat skin to the cushion form. 3. Apply adhesive to the extent that it fills the inside of the recess that occurs along the sewing location on the backing material side, and use the adhesive to keep the entire surface of the backing material side in a substantially flat shape to tighten the sheet display. A method of assembling a seat skin to a cushion foam according to claim 1 or 2, wherein the seat skin is attached to the cushion foam.