Patent ID: 8028629
Filing Date: 2011-10-04
Classification: B61D

Abstract:
1. A door system for a railway vehicle having a door opening and a stairwell extending downwardly from a vehicle floor level to a bottom end of said door opening, said door system comprising a sliding door displaceable between open and closed positions for selectively closing said door opening, a stairwell platform displaceable between a retracted position for clearing said stairwell and an extended position for covering said stairwell, and a threshold extending outwardly from an outer surface of said sliding door substantially at said vehicle floor level, said threshold being releasably and slidably connected to said sliding door for co-linear movement as a single unit with said sliding door between said open and closed positions when said stairwell platform is in said retracted position thereof, while remaining stationary in a functional position when said stairwell platform is in said extended position thereof for allowing high level boarding by providing a continuation of said stairwell platform.