APPARATUS WITH RETRACTABLE MARKETS FOR A DOOR TO A RAILWAY VEHICLE FOR TRANSPORTING PASSENGERS

摘要

P Retractable steps for passenger car doors; adaptable to docks at different levels. / P P It comprises: an upper step 4 movable between a retracted position and a horizontal outlet position close to a higher level of platform 1 under the effect of a jack 6 acting on an articulated polygon; a movable lower step 13 a) between a retracted position and a first outward riser position, under the effect of the same actuator acting on the articulated polygon, and b) between the first extended position and a horizontal outward position corresponding to a lower level of a platform under the effect of a second actuator acting on the articulated polygon. / P P Application to trains traveling between national networks with platforms of different levels. / P