B - Operations – Transporting – 61 – D
Patent
B - Operations, Transporting
61
D
B61D 19/00 (2006.01) B60J 5/00 (2006.01) B61D 23/02 (2006.01)
Patent
CA 2350400
Door system for a transit vehicle having a vehicle body with a full height door opening, which is for alternatively boarding from ground level and boarding from a platform. The transit vehicle has a floor, a stairway for ground level boarding and a trap door positionable in a deployed position for covering the stairway for platform boarding. The trap door is also positionable in a stowed position not covering the stairway for ground level boarding. The door system has a full height sliding door for covering and uncovering the door opening, and a threshold which is disposed within the sliding door when the sliding door is closed. The threshold is positioned at substantially the elevation of the floor. A retention mechanism is attached to the threshold, the retention mechanism is activated when the trap door is in the deployed position to engage the trap door and release the sliding door so that when the sliding door is opened, the threshold is retained to fill a gap between the trap door and the platform. When the trap door is in the stowed position, the retention mechanism disengages the trap door and engages the sliding door so that the threshold moves with the sliding door and does not interfere with street level street level boarding.
Krbec Marianne L.
Oakley Robert L.
Macrae & Co.
Westinghouse Air Brake Technologies Corporation
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