| 摘要 |
PURPOSE:To easily install a hanging bolt, by providing an outer shell body which has an inner space where a taper reducing toward an opening part is formed, and a split nut which is stored inside next to an elastic body and has sawtooth concave-convex inclining to the inner part about its teeth in the inner wall. CONSTITUTION:After a spacer 4 is pressed into an outer shell body 1 in which a split nut 2 and an elastic body 3 are stored in its cylinder 12, it is inserted from the umbrella type part 42 to a hole of a corrugated sheet, and it is filled up by concrete. Next, when a hanging bolt 5 is inserted, the split nut 2 opens and the hanging bolt 5 advances deeply into the inner part, and the split nut 2 and the hanging bolt 5 are engaged with each other. Next, when a hand to be inserted is released, the split nut 2 is pushed by the elastic body 3 and moves to the opening side. When pulling power is applied to the hanging bolt 5, the split nut 2 is going to move down along the inner taper of the cylinder 12, and the split nut 2 is pressed to the center. Accordingly, the sawtooth concave-convex 21 of the split nut 2 can be fixed fast to the hanging bolt 5. |
