| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a staircase with a good appearance, which eliminates the operation of mounting a tread board 6 in a narrow space, which dispenses with much labor for mounting the tread board 6, and which facilitates on-site construction. <P>SOLUTION: In this staircase, tread-board retainers 5 are provided at predetermined intervals in a staircase frame 3a (3b), and the tread boards 6 are mounted on the tread-board retainers 5, respectively. A mounting bracket 18 having a fitting groove with a lower opened portion is fixed to the undersurface of the tread board 6, fitted into the upper portion of the tread-board retainer 5, locked to the tread-board retainer 5, and fixed to the tread-board retainer 5 from the front side of the staircase by means of a fixing implement 31. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
