| 主权项 |
1. Road paver or feeding vehicle with a pushing device comprising at least a pushing unit that is attached to a cross-arm of the road paver or feeder vehicle and movably held relative to the cross-arm by at least one cushioning spring-absorber unit that is movable from a first position P1 into a second position P2 when the pushing unit is pressed towards the cross-arm in a first direction and the at least one spring-absorber unit can be moved in a second direction from the second position P2 back into the first position P1 in order to press the pushing unit in a second direction away from the cross-arm, the at least one spring-absorber unit having a larger spring rate during a movement of the pushing unit in the first direction than in the second direction, wherein the at least one spring-absorber unit comprises at least a friction spring which comprises inner and outer rings arranged concentrically with respect to one another, wherein the at least one spring-absorber unit comprises at least a sensor coupled to a controller and integrated into the spring absorber unit, the sensor being formed for acquiring the position of the spring-absorber unit and/or for acquiring a distance between the cross-arm and the pushing unit and the controller outputs visual or acoustic signals for an operator of the road paver or feeder vehicle. |
