| 摘要 |
PROBLEM TO BE SOLVED: To provide a reinforcing structure by double front floors having effect for suppressing the deformation of a front floor due to the rearward movement of a tire occurring at the time of collision particulary offset collision, without heighten a tread, also lowering the fitting position for an auxiliary machine part to be arranged under the floor. SOLUTION: A figure shows the positional relation of a patch front floor 1, a patch front floor rear 2, a pan front floor 3, a bead group 6, and a locker part 5. Ensuring a space 3e lower than the lower surface of the floor 3 does not sacrifices an auxiliary machine fitting space. Consequently a front floor can be reinforced without heightening the height of the front floor also sacrificing an arranging space for the auxiliary machine, etc., under a floor, to suppress the deformation of the front floor at the time of collision while ensuring boarding/alighting property and travel safety.
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