| 摘要 |
PROBLEM TO BE SOLVED: To forcibly ventilate air in a back without depending on other power and to eliminate hot air and stuffing stagnated in a pad so as to improve comfort.SOLUTION: A seat back pad 11 formed by using an air permeable resin pad and a fiber pad is assembled and supported on a seat back frame. A seat back trim cover 12 formed by using an air permeable material such as a mesh and a perforation skin material covers a back rest surface 14 side of the seat back pad 11. A back board 13 is assembled to the seat back pad 11 from a peripheral edge of the seat back trim cover 12 on a rear surface 15 side of the seat back pad 11 in such a manner that an intake port 20 and an exhaust port 21 are opened at a lower end 18 and an upper end 19, respectively, and a cavity 22 is penetrated in a vertical direction in the back, and is supported on the seat back frame. |
