Method and device for carrying heavy object

Abstract

In the method, a skid (19) slidable on mutually parallel tilted surfaces is installed on the lower surface of the bottom surface part (69) of a pipe pallet (21) to be carried. When a force (F) is horizontally applied to the skid (19), the movement of an upper wedge (57) in the horizontal direction is stopped by a stopper (50) but a lower wedge (56) is further moved. Accordingly, the upper wedge (57) is raised, and the pipe pallet (21) is pushed up by the upper plate (48). When the force (F) is further applied continuously, a part of the weight (W) of the pipe pallet (21) is transmitted, as a weight (W1), to a platform (18) through the skid (19). Since a frictional force (F1 + F2) acting on the pipe pallet (21) and the skid (19) is reduced less than an initial frictional force (F0) when the coefficient of friction of the lower plate (47) is reduced, the pipe pallet (21) can be carried more easily.

Description

technical field The present invention relates to a heavy object transfer method and a heavy object transfer device used in the method, and particularly relates to a heavy object transfer method for carrying in or out heavy objects such as long objects such as pipes and steel plate coils into or out of a dry container. The heavy object transfer device of the method. Background technique Fig. 22 is a schematic process diagram showing a conventional loading method for loading long and heavy objects such as pipes into a dry container. Referring to the drawings, as shown in (1) of FIG. 22 , a beam-shaped attachment 61 is attached to the fork 54 of a forklift 45 for loading. The long pipe 16 to be loaded in the dry container 34 placed on the ground 15 is attached to the attachment 61 via the hanging wire 63 . Then, as shown in (2) of FIG. 22 , the long pipe 16 is hoisted by moving the fork 54 of the forklift 45 upward. In this state, as shown in (3) of FIG. 22 , the forklift ...

AI Technical Summary

Problems solved by technology

However, in this case, the frictional force generated between the pipe pallet and the ground is too large, and the pipe pallet cannot be transferred by the pushing force of a normal forklift.

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