| 摘要 |
PROBLEM TO BE SOLVED: To store and develop a member capable of hiding a gap in accordance with a posture change in a seat body.SOLUTION: A seat body has a cover member 21 (base), a shutter 10 (gap hiding plate) and a screw coil spring 12 (elastic body), a connection part of the cover member 21 and the shutter 10 is formed in a key structure, the key structure has a shaft part 211 in the cover member 21, the shutter 10 has a hole part 101 insertable to the shaft part 211, a non-circular part 212 is formed in the shaft part 211, the hole part 101 is formed so as to be matched with the shape of the non-circular part 212 of the shaft part 211, the shuter 10 is attached to the cover member 21 at an angle at which the non-circular part 212 is coincident with the hole part 101 in shape, which prevents them from coming off from the cover member 21 because of becoming an angle at which the non-circular part 212 and the hole part 101 are not coincident when turned in the direction of a storage position against the energization of the screw coil spring 12. |
