In the method for transferring material between a truck and a driving road construction vehicle, a distance between the driving road construction vehicle and a truck driving in front of the road construction vehicle without contact to the road construction vehicle truck is kept constant by a distance control system. While the distance between the driving road construction vehicle and the truck is kept constant, material is being dumped from a loading cavity of the truck into a material hopper of the road construction vehicle. The road construction vehicle is a road finishing machine or a feeder for a road finishing machine.

A road paver or a feeder with a machine frame, a travel carriage driven by a drive unit, and a material hopper arranged in the front in the operating direction on the road paver or the feeder, the material hopper comprising a hopper bottom and side walls extending in the operating direction, at least one approach guidance aid protruding beyond the hopper bottom and the side walls in the operating direction being arranged on the road paver or the feeder in the edge region of the material hopper transversely to the operating direction. The approach guidance aid may also be provided for use with a road paver or feeder.

A road paver or a feeder with a machine frame, a travel carriage powered by a drive unit, and a material hopper with a material retention device arranged in the front in the operating direction, the material retention device comprising a fastening device and a retention element fastened to the material hopper through the fastening device, the material retention device having an overload protection device, which is designed in such a way that in the event of an overload applied thereto the retention element is detached the from material hopper and the fastening device, the latter remaining on the hopper, without damage. A material retention device of such a road paver or feeder and a method for protecting a material retention device of such a road paver or feeder.

The disclosure relates to a road construction machine in the form of a road finisher or a feeder vehicle for conveying paving material to a road finisher. The road construction machine is self-propelled and has a primary drive, a material hopper, at least one electrical load, at least one energy storage, and at least one interface which is connectable to a mobile supply machine for energy transmission or energy resources transmission.

A road-making machine is provided in the form of a road-finishing machine for producing a paving layer from a laying material or a charger vehicle for supplying the road-finishing machine with a laying material. The road-making machine comprises a material bunker, and a pushing means fixed forward of the material bunker at a chassis, such that pushing rollers of the pushing means may dock to rear tires of a truck. The pushing rollers comprise a pair of first pushing rollers mountable in a first position in a seat of a traverse of the pushing means. Either the pushing means is expandable by at least one changeable attachment to which the first pushing rollers may be mounted in a second position further forward with respect to the first position, or the pushing means comprises a pair of second pushing rollers which may be selectively positioned forward of the first pushing rollers.

The disclosure relates to a road finishing machine with a chassis and a pushing device. The pushing device comprises at least one docking assembly and at least one absorber unit. The absorber unit is fixed to the chassis of the road finishing machine and comprises at least one piston-cylinder unit which comprises a cylinder and a working piston movable therein which subdivides the piston-cylinder unit into at least one first and one second chambers and is coupled to the docking assembly. The docking assembly may be positioned, by the movably mounted working piston, relative to the chassis between an extended position and at least one retracted position. In the piston-cylinder unit, at least one flow channel is provided between the first and the second chambers for letting a fluid enclosed in the piston-cylinder unit pass through, the fluid being prestressed in the extended position.

An automotive building machine comprising a material bunker for accommodating therein pavement material to be laid is provided, the building machine being a road finisher or a charger. The material bunker comprises at least one lifting device, which is adapted to enter into releasable engagement with a movable tailgate of a truck supplying the material bunker with the pavement material and which is configured for displacing the movable tailgate of the truck between a first position and a second position. A method used for this purpose is also provided.

A damper device comprises a cylinder, a piston bearing on one side of the cylinder, a piston rod displaceably received by the piston bearing, and a bottom unit on another side of the cylinder. The cylinder, the piston bearing and the bottom unit form a closed chamber that is filled with a compressible liquid. The piston rod subdivides the chamber into first and second chamber halves between which the liquid can be displaced if the piston rod is displaced relative to the cylinder. Furthermore, the closed chamber provides for a variable volume so as to compensate temperature-induced pressure fluctuations inside the closed chamber.

Devices, methods, and systems for a leveling/spreading attachment are described herein. One system includes a body attachable to a push block portion of a trailer and a leveling blade coupled to the body. In some examples, a leveling blade trailer attachment system includes an adapter plate to replace a push block of a trailer, a body coupled to the adapter plate comprising a number of cylinders connected to an air supply of the trailer, and a leveling blade coupled to the body and the number of cylinders.

The disclosure relates to a road finishing machine with a chassis and a pushing device. The pushing device comprises at least one docking assembly and at least one absorber unit. The absorber unit is fixed to the chassis of the road finishing machine and comprises at least one piston-cylinder unit which comprises a cylinder and a working piston movable therein which subdivides the piston-cylinder unit into at least one first and one second chambers and is coupled to the docking assembly. The docking assembly may be positioned, by the movably mounted working piston, relative to the chassis between an extended position and at least one retracted position. In the piston-cylinder unit, at least one flow channel is provided between the first and the second chambers for letting a fluid enclosed in the piston-cylinder unit pass through, the fluid being prestressed in the extended position.