| 摘要 |
PROBLEM TO BE SOLVED: To provide a stair frame for a temporary scaffold that may be positioned in a width direction of a scaffold ledger plate and connected to the scaffold ledger plate with a simplified structure and work process.SOLUTION: A stair frame 20 includes: a plurality of step boards installed between a pair of stringers 21 at a prescribed interval; a hook member disposed at a top edge of the stringer 21, the hook member being hooked on a horizontal member of an upper stage scaffold; and a base body 24 disposed at a lower edge of the stringer 21, the base body being mounted on a scaffold ledger plate 5A. An engaging member 30 and a positioning member 32 are disposed on the base body 24, the engaging member being engaged on an undersurface of the scaffold ledger plate 5A from outside of an edge surface in a width direction of the scaffold ledger plate 5A, and the positioning member being inserted into the scaffold ledger plate 5A from above and bringing the engaging member 30 in a positioning state relative to the scaffold ledger plate 5A, in the width direction of the scaffold ledger plate 5A. A positioning action of the positioning member 32 prevents fall-off of the engaging member 30 outside of the edge surface in the width direction of the scaffold ledger plate 5A.SELECTED DRAWING: Figure 7 |
