Multi-stage height adjustable working platform - has screw and nut drive connecting each pair of adjacent platforms

摘要

The top plate of the platform is connected to a number of parallel intermediate plates. The top plate is connected to these adjacent intermediate components by leadscrews and which act as vertical supports. The length of each leadscrew is only part of the total lifting movement of the platform. The top platform and the intermediate plates are each driven by a motor associated with a given screw drive. The spindle nuts and motors are staggered in the horizontal plane.