| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide handrail hardware of a spiral stairway for allowing a human to rhythmically turn by 90° by vertically attaching a handrail to the projected corner 45°, to solve the problem that there is a defect that a human cannot ascend/descend like drawing a circle by gripping a right-angled handrail, since a conventional handrail is almost attached at a right angle to the outside of stairs, though he/she ascends and descends like drawing a circle about a central core part of the stairs if there is no handrail, when ascending and descending the spiral stairway.SOLUTION: In the handrail hardware, a right-angled installing plate (1) is installed in the projected corner of the spiral stairway, and a handrail projected width (2) is adjusted by existing hardware and the length of the leg, and a handrail receiving plate (3) is adjusted to a handrail diameter (about 30 mm-45 mm), and an attachment screw hole (4), a projected corner column (5) of stairs, or the wall projected corner, a spiral stairway vertical handrail (6) and a direct stairway handrail (7) are connected.</p> |
