| 摘要 |
PROBLEM TO BE SOLVED: To provide the car body floor of an automobile where the safety of an occupant can be obtained by absorbing enough the residual shock energy that the crush of the front of the car body can not absorb, by the car floor. SOLUTION: This structure is equipped with a pair of reinforcing members 20 which are separated from each other under face of the top 11A of a tunnel part 11 and are each arranged from under face of the top 11A of the tunnel part 11 to the bottom of the floor face 12 via the inner face of the side 11B of the tunnel part 11. This is reinforced by the reinforcing member 20, covering the tunnel part 11 and the floor face 12, whereby the rigidity of the floor is secured, while a weak part is made in the range of the tunnel part 11 between several reinforcing members 20 parting from each other and when shock load at a specified value or over works on the car body, the deformation of the weak part of the tunnel part where the influence on an occupant is little absorbs the residual shock energy that the crush of the front of the car body such as an engine room or the like could not absorb. |
