Occulter door device null of freight-train car Tanks load

摘要

PURPOSE: To ensure completeness by giving moderation to the door closing operation by the two-stage operation at the termination of door closing, and to arbitrarily control the speed of opening and closing a shutter. ;CONSTITUTION: In a shutter door 3 which is so constructed that guide rails 4vL, 4vR-4hL, 4hR are disposed on the right and left sides between an opening part 2 and the ceiling surface on the wall surface of h box-shaped cargo chamber, and a shutter traveled along the rails is laid on the guide rails 4vL, 4vR-4hL, 4h, swing relay wheels 8e which are supported by fixed relay wheels 8b and arms and can be displaced in the direction of approaching and separating from the rails by the operation of springs are disposed near the upper end of the opening part 2. On the other hand, two cables such as wires 6L, 6R of a suitable length wound round winding drums 5bL, 5bR including a motor 5a have both starting and end sides of the cables wrapped through the respective relay wheels, and both end parts of the cables are connected to the right and left of the trailing end part of a shutter door 3.;COPYRIGHT: (C)1996,JPO