| 摘要 |
PURPOSE:To improve a cushion function, by making both sides of a cushion body ahead of the gravity center of the driver by use of a highly harder urethane foam than the seat. CONSTITUTION:A cushion body 10 is molded by a soft-hardness urethane foam in the S area for a driver' seat 11. And both sides of the gravity center X of the seat 11 is made of urethane foam with the same quality. That is, only both sides 12, 13 (S area) at the front side are made of a high hardness urethane rubber in the cushion body 10 and other parts are made of a cushion body of a lower-hardness urethane foam. And slits 14, 15 are formed on the surface of the cushion body by respective partition pieces 51, 52. And hence, the urethane foam at the seat 11 and the urethane foam at the side 12, 13 are made to be a discontinuous body, viewed from the seat, to increase the cushion ability of the seat. |
