| 摘要 |
PROBLEM TO BE SOLVED: To reinforce a frame member 6F while preventing the weight increase of a seat as much as possible.SOLUTION: The panel part of a frame member 6F is made of a hardened metal member. A first tabular reinforcing part 21 and a second tabular reinforcing part 22 are included. The first reinforcing part 21 extends along a line connecting one side lower part of the frame member 6F with the other side upper part to project with respect to the seating side face of the frame member 6F, and the second reinforcing part 22 extends in a direction intersecting the first reinforcing part 21 to project with respect to the seating side face of the frame member 6F. |
