| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a staircase structure easy to be utilized even by a foot handicapped person in a simple constitution by providing an auxiliary step whose width is substantially one third the normal one and level difference is substantially a half on one side of the width direction in each step and floor face of a normal step. SOLUTION: Auxiliary steps 2... are formed as staircase auxiliary tools on one side of the width direction in each step of a normal step 1 and the floor face of the normal step 1 provided with a normal difference in level in required width. The auxiliary step 2 has substantially one third the width of the normal step 1, and the height of substantially a half a normal level difference. In addition, the structure of the auxiliary step 2 is formed of a base part 2a adhering a bottom face on the normal step 1 and a step plate 2b fixed on the upper face of the base part 2a. Thereby the staircase structure easy to be utilized even by the foot handicapped person of an aged person or the like can be obtained.</p> |
