Registration manner null of the hanging being packed materials by

摘要

PURPOSE: To carry out the safe work without using man power by installing a magnet in the vicinity of the joint end of a suspended member or on the already installed article side joined with the suspended member. ;CONSTITUTION: When a steel frame 2 as the material suspended by the crane 1 such as tower crane is suspended on a steel frame pillar 3 as already constructed article, a magnet 4 is installed in the vicinity of the joint side of the steel frame member 3 with the steel frame pillar 3. Since each of the steel frame member 2 and the steel frame pillar 3 consists of magnetic body, the vicinity of the joint end having the magnet 4 as center is magnetized as yoke, and the steel frame member 2 is attracted to the steel frame pillar 3 by the magnetic attractive force of the magnet 4, and swing is suspended, and easy positioning is enabled. Further, since the magnetic force of the magnet 4 is controllable, when the steel frame member 2 is approched to the steel frame pillar 3, fine positioning can be carried out by properly varying the magnetic force through strengthening and weakening. Accordingly, the swing stop and positioning can be carriod out in a simple manner without using an assisting rope, and safe work can be carried out.;COPYRIGHT: (C)1995,JPO