Patent ID: 7926827

Claim:
An aid for vehicles for carrying passengers, selected from the group consisting of a boarding aid, an entry aid, and both, having a rectangular frame ( 3 ) that has two parallel lateral parts ( 4 ), which are solidly joined together at rear ends by an end profile ( 5 ) and, in a region spaced apart from it, by at least one bracing strut ( 6 ), and having a step plate ( 2 ), supported movably on the lateral parts ( 4 ), wherein the lateral parts ( 4 ), the end profile ( 5 ), and the bracing strut ( 6 ) are provided with positioning means ( 14 , 14 a , 15 , 15 a ; 25 , 25 a , 25 b , 26 ) that engage one another in form-locking fashion, wherein the lateral parts ( 4 ) each have one middle bar ( 4 c ) and two longitudinal bars ( 4 a , 4 b ) joined to it in the shape of a U, and the longitudinal bars ( 4 a , 4 b ) are provided on their ends with first of the positioning means ( 14 , 14 a ), which cooperate in form-locking fashion with second of the positioning means ( 15 , 15 a ) embodied on associated ends of the end profile ( 5 ) wherein each of the longitudinal bars ( 4 b ) of the lateral parts ( 4 ) is provided with at least one third positioning means ( 25 , 25 a , 25 b ) each, and the bracing struts ( 6 ), on their ends, have fourth positioning means ( 26 ) that cooperate in form-locking fashion with the third positioning means ( 25 , 25 a , 25 b ), wherein one rail ( 27 ) for wheels ( 8 ) rotatably supported on the step plate ( 2 ) or on a rolling carriage ( 7 ) coupled to the step plate is secured to each of inner sides, facing one another, of the longitudinal bars ( 4 a , 4 b ) of the lateral parts ( 4 ), wherein the third positioning means comprise recesses ( 25 , 25 a , 25 b ) in lower longitudinal bars ( 4 b ) of the lateral parts ( 4 ), and the fourth positioning means comprise extensions ( 26 ) that fit into these recesses ( 25 , 25 a , 25 b ); and that the bracing strut ( 6 ) is secured to the rails ( 27 ) by means of screws that pass through the extensions ( 26 ).