| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a suspension frame mounting tool of a scaffold which is easily fixed by fastening from above a bridge girder and whose mounting method is easy.SOLUTION: A suspension frame mounting tool of a scaffold is composed of a base 1, a lifting frame 2, a lever 3, and a screw shaft 4 for operation. The base 1 includes a ring part 11 into which a scaffold board can be inserted, and a frame holder 13 at a vertical position on one side of the ring part 11. The lifting frame 2 has a holding surface on a lower end horizontal part 21, and can move up and down while being loosely inserted into the frame holder 13 of the base 1. The lever 3 is vertically moved by loosely inserting the lifting frame 2 into the base 1 on the upper frame holder 3 of the base 1 and screwing with the screw shaft 4 for operation, of which the tip butts against the upper surface of a crowning part 12 of the base 1, at a tip part of the lever 3. The tip part is raised by rotation of the screw shaft 4 for operation, whereby the loosely inserted lifting frame 2 is held and fixed so that the base 1 is vertically bent. The holding surfaces of the screw shaft 4 for operation and the lifting frame 2 are located so as to face each other.</p> |
