| 摘要 |
PROBLEM TO BE SOLVED: To simplify a structure, and to facilitate height adjusting work.SOLUTION: Step board parts 2, 3 are connected in a zig-zag manner by a hinge part 5 to be foldable in a traveling direction of a wheel chair in a layered manner. Since a pair of leg parts 9 whose height is adjustable are provided in a horizontal direction on a side of a connecting part of the lowermost step board part 2 in the layered manner as the step board parts 2, 3 are folded, and no leg part is provided at the other end part of the step board part 2, a structure is simplified. After the height of one leg part 9 out of the right and left leg parts is adjusted, the height of the other leg part 9 is adjusted in adjusting the height of the leg part 9. Thus, it is easy to adjust the height. In a structure where a tip end part of the leg part 9 is projected to a side of the step board part 3, a distance between landing points by a slope part and the leg part 9 in the traveling direction 4 of the wheel chair becomes long. Consequently, stability in placing a slope device 1 constituting a slope between an upper floor part and a lower floor part is increased.SELECTED DRAWING: Figure 1 |
