| 摘要 |
FIELD: construction. ^ SUBSTANCE: platform of lift comprises a pair of studs, which are fixed on earth, platform intended for car location, and facilities for actuation of specified platform with permanent speed along specified studs between lower position and upper position, in every of which platform is in single plane with floors of mentioned stories, and facilities that block platform free fall. Blocking facilities consist of facilities for connection with beams that are parallel to studs. Platform is equipped with cross beam arranged with the possibility of free rotation relative to platform and has two geared wheels at ends, which are arranged with the possibility of engagement into rack bars, which are rigidly connected to beams (10). ^ EFFECT: passenger safety in a vehicle in process of platform lifting or lowering. ^ 17 cl, 4 dwg |
