FIELD: transport engineering.
SUBSTANCE: proposed boarding platform of car has carrying frame with shaped guides with vertical and horizontal support rollers along which drawout panel 3 and guide panel 4 are moved being set into motion by electric motor. Drawout and guide panels 3 and 4, respectively, are interconnected by torsion bar 8 with loops to form common movable unit. Carrying frame and guide panel are provided with vertical and horizontal support rollers along which drawout panel extends and retracts. Carrying frame is provided with front and rear gear wheels and drive serrated belt 11 kinematically connected with guide panel. Boarding platform is provided with manual emergency drive installed in car saloon, and hinge shutter with runner is mounted on outer edge of flooring.
EFFECT: simplified design, improved operation reliability.
3 cl, 3 dwg
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