| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To easily perform installation work of a lateral width plate 4 and a longitudinal width plate 5 at a construction site of stairs. <P>SOLUTION: A tread 2 is arranged in a step height shape in the vertical direction Z in a passage S along a side wall 1, and a riser 3 is arranged on the lower side of the tread 2. The lateral width plate 4 arranged by facing an outside surface 1a of the side wall 1, is applied to an end part upper surface of the tread 2, and the longitudinal width plate 5 arranged by facing the outside surface 1a of the side wall 1 on the lower side of the lateral width plate 4, is applied to an end part outside surface of the riser 3. A recess space G for inserting an adjusting end part 7a arranged in an upper part of the longitudinal width plate 5, is arranged on the lower side of thee lateral width plate 4 by a cutout part 8. When mutually installing the lateral width plate 4 and the longitudinal width plate 5 at the construction side of the stairs, a position of the longitudinal width plate 5 to the lateral width plate 4 can be set by moving the adjusting end part 7a of the longitudinal width plate 5 in a range of the recess space G of the lateral width plate 4. Thus, since the lateral width plate 4 and the longitudinal width plate 5 prepared in advance are only required to be mutually installed at the construction site of the stairs, there is no need to process these plates. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
