METHOD FOR CONSTRUCTING STAIRCASE, SIDE PLATE OF STAIRCASE, TREAD OF STAIRCASE, AND STAIRCASE

摘要

PROBLEM TO BE SOLVED: To provide a method for constructing a staircase which is easy in fitting work of a riser, does not require a separate component and is excellent in stability, and to provide the staircase and side plates of the staircase.;SOLUTION: In a method for constructing a staircase comprising a pair of side plates 3 arranged in parallel with each other in which a tread mounting groove 11 and a riser mounting groove 12 are formed, a tread fitted in the tread mounting groove 11 and a riser fitted in the riser mounting groove 12, a working groove 13 is provided in the rear of the riser mounting groove 12, and the riser is fitted in the riser mounting groove 12 by moving the riser from a backward tilting attitude to a vertical attitude or a forward tilting attitude in the working groove 13. The tread is moved forward while fitting an upper end part of the riser to an insertion groove formed on a lower surface of the tread, and the riser is moved from the backward tilting attitude to the vertical attitude or the forward tilting attitude.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT