| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel set of assembly type stairs in which length, width, gradient, etc., can be freely set in accordance with situations of an installation place. SOLUTION: This set of assembly type stairs comprises two parallel vertical members, plural tread members provided with shaft members to be respectively rotatably engaged with plural coupling bearings perpendicularly provided in respective shafts of the two vertical members 1 to face each other, plural fixing members 3 provided on a slope as a subject to installation, and coupling members to couple the fixing members 3 with the two vertical members 1.
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