Device for winding and unwinding lines, and apparatus equipped with such a device

摘要

A device for winding and unwinding lines has at least two rotatable drums onto which at least one line can be wound and from which at least one line can be unwound respectively, and a transmission connecting the drums such that one line is wound onto one drum when the other line is unwound from the other drum. An apparatus equipped with such a device allows one apparatus part to move relative to another apparatus part while winding/unwinding of the lines takes place.