| 摘要 |
PROBLEM TO BE SOLVED: To move the wheelchair from a wide space to a narrow space and to change a direction without depending on training for manipulating a wheelchair. SOLUTION: A sheet-like guiding board 1 forming guiding grooves 3 for guiding the wheelchair, both ends of which are large in width and the cross sections of which are inverse trapezoides, is fixed to a boundary part for moving from a wide space to a narrow one and a narrow space requiring the change of a direction. Thus, it is easy to pass through without training of the wheel chair only by putting the wheelchair in the grooves and pushing it.
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