| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent interference of a platform with a rear door when cargo handling of a van-type truck provided with the rear door of bi-parting door is performed on a truck terminal, by making the lower part of a vertical shaft of a fastening device for the rear doors into a double structure of an outer cylinder and an inner cylinder and providing a spring mechanism and an operating mechanism. SOLUTION: When rear doors 3 are opened from the closed state, a lever 38c is pulled up against spring force of a spring mechanism 37. The engagement of a groove 39d provided on a lever stopper 39 with the lever 38c is released, the lever 38c is pulled to this side to rotate an outer cylinder 33 and an inner cylinder 34 counterclockwise, the engagement of a fastening element 21 with a fastening hole is released by the rotation of the fastening element 21 to enable the rear doors to be released. When the rear door 3 interferes with the platform, the lever 38c is lowered after the rear doors are opened, a fixed tap 36 is pressed up through the lever 38c, and the inner cylinder 34 is raised in the outer cylinder 33. Therefore, the fastening element 21 is raised upper than the lower ends of the rear doors, and the interference is avoided.</p> |
