| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide housing stairs coping with the aging society and easily ascending/descending raising/lowering in daily life for the elderlies and the family. SOLUTION: Stairs friendly to the aging society is formed by setting a short sideboard of application 4 members to the base, straight stairs of 5-form and 10-member of short board to its base form, and the rise dimension 230 mm and a tread dimension 270 mm to the basic dimension; constituted of 5 forms of the straight stairs, spiral stairs, deformed stairs, bent stairs and a mixed stairs assembling the four forms; and applies calculation and manufacturing methods based on the construction gist of the housing stairs category 3.</p> |
