| 摘要 |
PROBLEM TO BE SOLVED: To prevent the damage of a floor surface and a heavy object by fitting a conveying auxiliary tool to the built-up bolt hole of the heavy object in a pendulum state when conveying the heavy object such as a steel frame. SOLUTION: Opposite support walls 5 are vertically provided at an interval larger than the wall thickness of a heavy object 1 at the center section of the upper face of a ground substrate 4, and a fitting bolt 7 to be inserted into the bolt hole 2 of the heavy object 1 is arranged at the upper sections of both support walls 5 to form a conveying auxiliary tool 3. When the conveying auxiliary tool 3 is to be used, the support walls 5 are inserted to the ground portion of the heavy object 1, the fitting bolt 7 is inserted into the heavy object 1 and the support walls 5 and is shaft-stopped, and the conveying auxiliary tool 3 is fitted to the heavy object 1 rockably in a pendulum state. When the heavy object 1 is hoisted by a crane, the conveying auxiliary tool 3 is suspended in the pendulum state, and the ground substrate 4 is horizontally grounded on a floor surface at the time of grounding, thereby no bottom board is required, the workability for conveying the heavy object 1 is improved, and the damage of the floor surface and the heavy object 1 can be prevented.
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