JPS6127487Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pad material for seats in automobiles or household furniture.

Conventionally, seat padding materials include not only padding materials made of a single material, but also padding materials 1 made of a plurality of materials made up of first and second cushion members 2 and 3, as shown in FIG. The pad material 1 is designed to have a good sitting feeling and a good surface feel.

The above-mentioned conventional pad material 1 is produced by pressing a first cushion member 2 molded from a synthetic resin material such as slab urethane closely into a mold.
An impregnation prevention film 4 having adhesive properties and liquid tightness such as a hot melt sheet is laminated on the cushion member 2, and then a stock solution of a foamed synthetic resin material is injected onto the impregnation prevention film 4 of the mold. and second
The first cushion member 2 is prevented from being impregnated with the stock solution of the foamed synthetic resin material when the second cushion member 3 is molded.

However, in the conventional pad material 1, unless the impregnation prevention film 4 is disposed between the first cushion member 2 and the first cushion member 2, a large amount of the stock solution of the foamed synthetic resin material will impregnate the first cushion member 2. There is a risk that the second cushion member 2 will be hardened more than necessary, and the stock solution of the foamed synthetic resin material that forms the second cushion member 3 must be used in a larger amount than necessary, which is extremely uneconomical. The impregnation prevention film 4 cannot be omitted, and when the impregnation prevention film 4 having adhesive properties such as a hot melt sheet is used, it has to be expensive and has the disadvantage of causing an increase in costs.

The object of the present invention is to provide a pad material for a seat that has first and second cushion members, has a good seating feel and surface feel, is easy to change the overall hardness or partial hardness, and is extremely economical. This will become clear from the detailed description below with reference to the drawings.

2 and 3 schematically show an embodiment in which the seat pad according to the present invention is applied to a seat cushion for an automobile, etc. The pad material 11 of this seat cushion is made of slab urethane. It has a first cushion member 12 molded from a synthetic resin material such as, and a second cushion member 13 made of a foamed synthetic resin material provided at the lower part of the first cushion member 12. The second cushion members 12 and 13 are bonded to each other via a synthetic resin film 14 having a large number of through holes 15 as schematically shown in FIG. 3 to form a pad material 11.

The pad material 11 is the first cushion member 1
2 is pushed closely into the lower die of a molding machine (not shown),
Next, a synthetic resin film 1 having a large number of through holes 15
4 on the first cushion member 12,
Next, the stock solution of the foamed synthetic resin material is injected into the mold, and the foamed synthetic resin material is foamed with the mold closed to form the second cushion member 13. Alternatively, the first cushion member 12 and the synthetic resin film 14 may be laminated in advance.

When foam-molding the second cushion member 13, the foamed synthetic resin material is formed into the synthetic resin film 14.
At the same time, the undiluted solution of the foamed synthetic resin material impregnates the first cushion member 12 through the numerous through holes 15 of the synthetic resin film 14, and the impregnated layer 16 with the foamed liquid is located at a position facing the through holes 15. the first of
The impregnated layer 16 is formed in dots on the first and second cushion members 1.
2 and 13 are bonded more firmly, the impregnated layer 16 is hardened, and a portion of different hardness is formed in a portion of the pad material 11.

FIG. 4 shows an outline of an embodiment in which the seat pad material according to the present invention is applied to the seat back of an automobile, etc. In this embodiment as well, the seat back pad material 21 is applied to the first and second cushion members 22 and 23, and first and second cushion members 22 and 23.
A large number of through holes 2 are formed between the cushion members 22 and 23.
5 is disposed, and the first and second cushion members 22 and 23 are bonded to each other by an impregnated layer 26 similar to that described above.

In addition, as shown in FIG. 2, the holes 15 in the synthetic resin film 14 at positions _L1 corresponding to the support portions on both sides of the seat cushion are made relatively large, or the holes 15 per unit area are made relatively large. Forming a large number of impregnated layers 16 or forming a large number of impregnated layers 16,
Side supports 18 having different hardness parts can be formed on both sides of the seat cushion, and as shown in FIG _.
The synthetic resin film 24 has relatively large or many through holes 25, and the pad material 21 of the seat back
It is also possible to create a lumbar support effect.

The above is the configuration of one embodiment of the seat pad material according to the present invention. According to this configuration, the first cushion member is molded from a synthetic resin material with a good surface feel, thereby improving the seating feel. It is possible to obtain a seat pad material that has a good surface feel and is extremely economical, and by appropriately increasing or decreasing the number of through holes in the synthetic resin film, it is possible to change the overall hardness or to create a seat pad material that has parts with different hardness. You can get padded material.

FIG. 5 shows a modified example of the seat pad material according to the present invention, and this pad material 31 has first and second cushion members 32 and 33, and a through hole 35 in a synthetic resin film 34. The first and second cushion members 32 and 3 are connected to each other through an impregnated layer 36 made of a foamed synthetic resin material.
However, the synthetic resin film 3 is formed from the first and second film layers 34a and 34b, and either one of the first or second film layers 34a or 34b (in this embodiment) In the example, the first film layer 34a is formed with an outwardly directed protrusion 38, and the first and second film layers 34a
a and 34b are joined to form an air bag portion 39 between the first and second film layers 34a and 34b, and a portion of different hardness is formed on the pad material 31 by the impregnated layer 36, and a portion of different hardness is formed by the air bag portion 39. is formed.

According to the above-mentioned modification of the present invention, a plurality of textures can be imparted to the pad material, making it possible to obtain a seat pad material with excellent surface texture and seating sensation.

It is clear that the size, number, arrangement, etc. of the air bag portion 39 can be selected as appropriate.

[Brief explanation of the drawing]

Fig. 1 is a schematic front cross-sectional view showing the padding material of a conventional seat cushion, and Fig. 2 is a partial diagram showing an outline of one embodiment in which the padding material is applied to the seat cushion of the seat according to the present invention. FIG. 3 is a schematic perspective view of a synthetic resin film; FIG. 4 is a schematic side sectional view showing one embodiment of the pad material according to the present invention applied to a seat bag; FIG.
The figure is a schematic partial cross-sectional view showing a modification of the synthetic resin film of the pad material according to the present invention. In the figure, 11, 21, 31...pad material, 12,
22, 32...first cushion member, 13, 2
3, 33... second cushion member, 14, 2
4, 34...Synthetic resin film, 15, 25, 3
5...Through hole, 16,26,36...Impregnated layer, 39
...Air bag section.

Claims (1)

[Scope of utility model registration request] a first cushion member molded from a synthetic resin material; a second cushion member made from a foamed synthetic resin material formed by foam molding on the first cushion member through a synthetic resin film layer having a large number of through holes; When the foamed synthetic resin material is foamed, the undiluted solution of the foamed synthetic resin material impregnates the first cushion member through the numerous through holes of the synthetic resin film, and the first and second cushion members are They are joined via an impregnated portion, and the through holes are formed relatively large in a portion corresponding to a support portion such as a side support or a lumbar support of the seat cushion or seat back, or have a large number of through holes per unit area. A padded material for a seat, which is characterized by being formed.