Vertical adjustable staircase device for use as servicing platform for passenger entry into aircraft, has platform comprising covering, where breadth of platform is adjustable so that delivering of covering and platform is enabled

摘要

The device (1) has an intermediate platform (8) lying in a level with an upper end (4a) of a fixed stair case (3). The intermediate platform comprises a floor covering (10) that is partially movable along a horizontal guiding section (9), where breadth of the platform is horizontally adjustable in a feeding direction (11) for a vertical adjustable staircase (5) by removing the floor covering from a base construction (2) so that delivering of the covering and the intermediate platform for the vertical adjustable staircase is enabled.