The device has a rolling unit fastenable to a mounting portion of a stand frame (1) i.e. linear bar. A support structure (6) is fastenable at the stand frame by a detent connection such that the rolling unit is arranged at the support structure. The suppor...

The apparatus has landing gear (5) that is provided with the motor (9) propelled in drive axle (A). The drive wheel (2) is connected through a steering shaft bearing (4) and a steering shaft (3) with the carrier and is rotatable around a steering axis to f...