Patent ID: 7934736
Filing Date: 2011-05-03
Classification: A61G,B60R,B61D

Abstract:
1. Boarding and/or access aid for vehicles with passenger transportation, containing a frame ( 3 ) with two parallel side parts ( 4 ) and an end profile ( 5 ) which connects said parts, a step plate ( 2 ), which is attached in the side parts ( 4 ) along a movement path in such a way that it can be shifted in and out, and drive means driving the step plate ( 2 ), which are braced on the frame ( 3 ), arranged between the two side parts ( 4 ), and present a drive motor ( 11 ), where the drive motor ( 11 ) is arranged in a rear area of the frame ( 3 ), wherein the drive means contain a drive element ( 10 ), designed as a chain or belt, which is guided, over at least one deflection roller ( 35 ), which is arranged beneath the movement path, and a drive roller ( 9 ), which is arranged in an area of the end profile ( 5 ) and in a rear area of the frame ( 3 ), and coupled with the drive motor ( 11 ), where the drive roller presents a larger diameter than the deflection roller ( 35 ), and is arranged in an interior space delimited by the frame ( 3 ), and the drive roller ( 9 ) is associated with a pressing roller ( 39 ), which acts from an exterior onto an upper strand ( 10 a ) of the drive element ( 10 ), in such a way that the upper strand ( 10 a ) is arranged in an area which is located between the pressing roller ( 39 ) and the deflection roller ( 35 ) substantially parallel to the movement path, but beneath said path, and coupling piece ( 38 ) for coupling a rolling cart ( 7 ) to the drive element ( 10 ), wherein the upper strand ( 10 a ) and a lower strand ( 10 b ) of the drive element ( 10 ) extend parallel to one another, the driver roller ( 9 ) of the larger diameter and the deflection roller ( 35 ) of a smaller diameter are located between the upper strand ( 10 a ) and the lower strand ( 10 b ) inside the drive element ( 10 ) at opposite ends of the latter, the pressing roller ( 39 ) is located outside of the drive element ( 10 ), and the coupling piece ( 38 ) moves together with the upper strand ( 10 a ) of the drive element ( 10 ).