The device (20) has a step plate (22) for a door opening of a person transport vehicle, where the step plate is movable from a rest position to a use position and reverse. A cover plate (28) is provided with two side profiles such that the step plate is arranged below the cover plate and between the side profiles in the rest position, where the cover plate is made of plastic or metal. A base-sided cover (30) is provided opposite to the cover plate such that the step plate is arranged between the cover plate and the cover in the rest position.
