JPH0544099Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a skin-integrated foam molded product that has excellent surface feeling and air permeability and is used for vehicle seats and the like.

(Prior technology) Vehicle seats have traditionally been made by cutting and sewing pieces of the skin into a bag shape, injecting a foaming solution such as polyurethane into the bag, and then integrally foaming the bag. products are used. However, when attempting to manufacture a skin-integrated foam molded product using a breathable skin material such as fabric, the injected urethane stock solution oozes out onto the surface of the fabric or impregnates the inside of the fabric, making it difficult to obtain the desired molded product. is difficult. Therefore, attempts have been made to prevent the urethane stock solution from seeping out onto the back side of the fabric or impregnating into the inside of the fabric, but in the former case, a non-breathable film is laminated directly onto the fabric, making it difficult to use it for a long period of time. In the latter case, the slab urethane is impregnated with the urethane stock solution, resulting in a stiff feeling and poor surface feel.

(Problems to be solved by the invention) The purpose of the invention is to solve the above-mentioned conventional problems and provide a skin-integrated foam molded product that has excellent surface feeling and air permeability and is suitable for use as a vehicle seat. It was completed in .

(Means for Solving the Problems) The present invention is an integrally foamed molded product of a polyurethane foam and a cover made by sewing a skin piece in which a breathable skin material and a backing layer are laminated. It is made of foam with a thin skin layer on its surface.

(Example) Next, the present invention will be explained in more detail with reference to the illustrated example.

Figure 1 shows an embodiment in which the present invention is applied to a vehicle seat, where 1 is a cover and 2 is this cover 1.
It is a polyurethane foam that is integrally foamed inside. The cover 1 is made by cutting and sewing a piece of skin to a predetermined size, which is made by laminating a foamed backing layer 4 on the back side of a breathable skin material 3 made of fabric, and is shown enlarged in Fig. 2. As mentioned above, this backing layer 4 has a thin skin layer 5 on its surface made of the resin itself used for backing. Such a skin layer 5 is obtained by controlling the foaming process of the backing layer 4, and the technique for forming the skin layer itself is already a known technique.

To manufacture the skin-integrated foam molded product of this invention,
The cover 1 is sewn from such a material, set in a mold, the end portions are held down by a fixing frame to prevent shifting, and a foaming solution of urethane is injected. Immediately after that, the upper mold is closed and the mold is aged to perform integral foam molding, but the backing layer 4
Since there is a thin skin layer 5 on the back surface of the backing layer 4, the urethane foaming stock solution is blocked by the skin layer 5 and there is no risk of it entering the inside of the backing layer 4. Therefore, an impregnated layer formed by the foaming stock solution and the backing layer 4 is not formed, and it is possible to obtain a skin-integrated foam molded product with excellent surface feeling without a stiff feeling. In addition, since the air permeability of the backing layer 4 is not impaired, the skin-integrated foam molded product of the present invention has excellent air permeability without fear of swelling even after long-term use.

(Effects of the invention) As explained above, the invention has a backing layer on the back side of a breathable skin material such as fabric.
By using a foam with a thin skin layer on its surface, we have succeeded in obtaining a skin-integrated foam molded product that does not have the stiff feeling caused by impregnation with foaming stock solution and has excellent breathability. . Therefore, if the skin-integrated foam molded product of the present invention is used for a vehicle seat, the seat can be made to have good surface feeling, excellent air permeability, and an excellent feeling of use without causing discomfort to the occupants. Therefore, the present invention has extremely great practical value as a skin-integrated foam molded product that eliminates the problems of the conventional products.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention, and FIG. 2 is an enlarged sectional view of a skin piece used in the present invention. 1... Breathable skin material, 2... Polyurethane foam, 4... Backing layer, 5... Skin layer.

Claims (1)

[Scope of utility model registration request] It is an integral foam molded product of a cover 1 and a polyurethane foam 2, which are made by sewing a skin piece in which a breathable skin material 1 and a backing layer 4 are laminated, and the backing layer 4 has a thin skin layer 5 on its surface. A skin-integrated foam molded product that is made of foam with a