| 摘要 |
PROBLEM TO BE SOLVED: To strongly fix a seat to a floor panel of an FRP cabin while minimizing increase in the weight.SOLUTION: A front insert member 81 that supports a front part of a seat 74 is fixed to a front wall 40a of a front cross member 40, and a rear insert member 83 that supports a rear part of the seat 74 is fixed to an upper wall 41b of a rear cross member 41 and an outer skin 20. Thus the front insert member 81 and the rear insert member 83 can be strongly fixed to the front cross member 40 and the rear cross member 41 that have high strength. Only the rear insert member 83 requiring higher strength in the case where forward inertial force is applied to the seat 74 due to a head-on collision is fixed to both of the rear cross member 41 and the outer skin 20, and the front insert member 81 requiring lower strength in the above case is fixed only to the front cross member 40. As a result, the size of the front insert member 81 can be reduced, so as to reduce the weight. |
