Hydraulic lifting device, particularly two-column or multi-column lifting platform, has safety device that is secured against dropping by ladder, where safety device is formed as pressurized medium operated particularly hydraulic device

摘要

The hydraulic lifting device, particularly two-column lifting platform (10) or multi-column lifting platform, has two lifting units (11,12) arranged at a distance from each other, which synchronously lifts and lowers a load. The lifting units has two-stage telescopic cylinders (13,14). The safety device is secured against dropping by a final e.g. another ladder. The safety device is formed as pressurized medium operated particularly hydraulic device or as electrical, electromechanical or mechanical or such like device.