| 摘要 |
PROBLEM TO BE SOLVED: To enable a punch work to be performed in a buttress in a state that a temporary hand-rail is installed on a top edge of the buttress.SOLUTION: The temporary hand-rail includes a plurality of assembly support posts P provided on a buttress W and a hand-rail H installed on the plurality of assembly support posts P. The assembly support post P comprises: a beam material 1 provided on a top end of the buttress W so as to stretch from an inside of the buttress W to an outside of the buttress W; a locking part 2 provided on an outside part of the beam material 1; a guide part 3 provided on a base end in the beam material 1; and a support post 4 held by the guide part 3 and installing the hand-rail H. The locking part 2 is movably provided on the outside part of the beam material 1, and is provided with fixing means 5 provided inside the buttress W and holding the buttress W between the fixing means and the locking part 2. The fixing means 5 comprises: fixing bolts 53, 54 held at one position or a plurality of positions of the guide part 3, a base end positioned inside the buttress of the beam material 1, or a lower end of a longitudinal member 12 suspended down from the base end of the beam material 1, and advancing/retreating in a direction across an axial direction of the buttress W. |
