| 摘要 |
PURPOSE:To improve tightness between a door body and a wall body by means of remote operation by supporting the door body elevatably between a supporting frame mounted along the wall body and the wall body and pressing the door body to the wall body by means of a sliding shoe when the door body is closed. CONSTITUTION:When a door body 11 is lifted by means of an opening/closing driving mechanism 12, an opening part 7 formed in a wall body 2 is opened, so that bulk cargoes are loaded from respective cargo warehouses by means of a feeding conveyor 8. If a ship is stranded during navigation or collides against another ship, or if a fire breaks out in an empty part, the door body 11 is lowered by means of the opening/closing driving mechanism 12 so as to close the opening part 7 formed on the wall body 2. In this case, a watertight packing 14 on the surface 113 of the door body 11 is matched with a watertight packing 16 on a back face 22, while a watertight packing 15 in a lower end face 114 is brought into tight contact with a watertight packing 17 in a lower frame 101, and the opening part 7 is closed. A sliding shoe 18 projected on an inside surface 102 of a supporting frame 10 presses the door body 11 in the wall body 2 direction so as to maintain watertightness. |
