| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve supporting performance of a cushion material. <P>SOLUTION: The back surface side of a cushion material 4P is divided by a plurality of support members into a plurality of raised portions 21, 22, and 23. The plurality of raised portions 21-23 each have a semi-cylindrical outer shape raised from the back surface side of the cushion material 4P, and by forming arranging portions 41-43 recessed toward a seating side between the outer shape parts of the adjacent raised portions, the plurality of support members are arranged in a sinking shape respectively. The plurality of support members have a first support member 11f arranged at a seat center in the view of a seat width direction and a plurality of other support members 11s and 11t arranged on both sides of the first support member 11f. As the plurality of other support members 11s and 11t are arranged away from the first support member 11f, they are arranged gradually closer to the seating side of a seat constituting member than the first support member 11f. <P>COPYRIGHT: (C)2013,JPO&INPIT |
