To provide a cushion stabilizing a position of the buttocks of a seated person and effectively preventing the buttocks from being sore.
Each of the first air cells 10 softly, up/down and horizontally supports the close proximity to the hipbones. A protrusive part 41 is provided in the front from the group of the air cells 10 in a longitudinal direction of the seat face. Tilted protrusive parts 42 are provided in both sides to the part 41 in a widthwise direction of the seat face. Thereby move of the thighs to widthways of the seat face is restrained by the part 41 and forward move of the buttocks is restrained by the parts 41 and 42, stabilizing the position of the buttocks of the seated person and effectively preventing the buttocks from being sore.
| JP2002315652 | CUSHION STRUCTURE |
NIHEI HIDEKI
Yukio Nagauchi
Junichiro Yanagi