Telescoping column

摘要

The invention concerns a telescoping column with several courses, the uppermost of which has its upper end attached to a crane or trolley, and the lowermost of which bears a working platform on its lower end that can be lifted and lowered by hoisting gear, the telescoping column being extended or retracted at the same time. In order not to make this special telescoping column longer than necessary, or the hall taller than necessary, it is proposed that, when the telescoping column (3) is drawn up, it be possible to draw up the working platform (5) still further in guides on the uppermost course (3a) of the column. <IMAGE>