| 摘要 |
PURPOSE:To prevent an accident due to the falling of a container even if a fastening device is accidentally disconnected by such an arrangement wherein hooks for preventing a container from falling are pivotally installed to a tilt frame and containers are equipped with coupling pins at such positions where they are automatically coupled with the hooks. CONSTITUTION:A hook 30 for preventing a container from falling is pivotally installed to a tilt frame 4 and a container 11 is equipped with a coupling pin 40 at such a position where it is automatically coupled with the hook 30. The coupling pin 40 is connected to a mechanism comprising a detector which detects that a wire rope 8 of a winch 6 is not coupled with a coupling unit 12 of the container and an arm 13 pivotally installed to the axis 9a of a sheave 9 which causes the coupling pin 40 to protrude from the container 11, and etc. By this arrangement, when the rope 8 is disconnected from the container, the arm 13 rotates counterclockwise, a rod 46 is pulled to the left and the coupling pin 40 is automatically protruded by a spring 41. As the frame 4 ascends, the hook 30 moves around and couples with the protruded coupling pin 40 and the container is combined with the frame. |
