| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide staircase equipment which enables persons different in stature to smoothly ascend/descend on the corner section of spiral stairs by gripping a handrail bar with their hands, and which is excellent in safety because their clothes or feet are not caught or sandwiched in the lower end of the handrail bar. <P>SOLUTION: The lower end of the handrail bar 2, which is vertically provided at the corner section of the spiral stairs 1, is held on the tread board 3 of the spiral stairs 1. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
