the roller stirrups 9 9 u2032 within a broad range for example the restoring force can be selected larger in all areas from the approach position to the drive through position if a heavy vehicle with wide and large tires drives into the drive in aid with a light vehicle on the other hand the restoring force is selected smaller also with this embodiment it is possible to advantageously do without the approach stops 16 16 u2032 and or the back rolling stops 17 17 u2032 since the roller stirrups 9 9 u2032 can be held in place in the approach or drive through positions by the pneumatic cylinders 18 18 u2032 thus in a simple manner the restoring force can be adapted by the pneumatic cylinders 18 18 u2032 to the desired requirements in different deflection areas of the roller stirrups 9 9 u2032 in another nondepicted embodiment single acting pneumatic cylinders can also be used instead of the double acting cylinders 18 18 u2032 shown in fig4 they can apply the restoring force on the roller stirrups 9 9 u2032 in the direction of the approach position in another nondepicted embodiment the base plate 6 supported so it can move transverse to the transporting direction t can also be advantageously implemented by other means which permit a shifting of the tire of a driving in vehicle and thus of the driving in part of the vehicle itself thus instead of the base.