The invention relates to a tamper device for a screed of a working machine, in particular a paver. The device comprises a rotatable driveable tamper shaft with an eccentric section, an 5 eccentric bushing mounted on the eccentric section, and a connecting rod rotatable mounted on the eccentric bushing for being driveable with stroke motions having a stroke, the stroke being adjustable by an rotational adjustment of a relative rotational positioning between the eccentric bushing and the eccentric section. The device further comprises an inner-toothed hollow 10 wheel gear train for providing the rotational adjustment. The gear train is connected to the tamper shaft, to the eccentric bushing, and to a drive force receiving element configured to be able to receive a drive force for driving the innertoothed hollow wheel gear train when the tamper shaft is rotating.

A limiting plate of a road paver is detachably attached to a traverse or to a chassis of the road paver to increase the basic working width. The limiting plate is arranged with variable spacing to a subgrade. In order to prevent a mix from flowing forwards in a direction of travel and at the same time improve the efficiency of a screw conveyor, in which a geometrically defined screw trough is formed, a limiting plate extension is arranged on the limiting plate so that it can be adjusted, particularly in the direction of the subgrade.

Systems and methods for controlling a construction machine, such as an asphalt paver, having a tractor, an implement coupled to the tractor via at least one tow arm, and a mast. A position sensor mounted to the mast may detect a geospatial position of the mast. An angle sensor may detect at least one angle associated with the mast. A control point may be calculated based on the geospatial position and the at least one angle. The control point may be spatially offset from a vector formed by a lengthwise extension of the mast. The at least one tow arm may be moved based on a comparison between the control point and a target point.

The disclosure relates to a screed arrangement for a road paver comprising a base screed, a first extending screed and a second extending screed, the first extending screed and the second extending screed being arranged in front of the base screed in a pulling direction of the screed arrangement and being movable transversely to the pulling direction relative to the base screed, wherein at least one of the two extending screeds comprises a material deflecting member configured to displace paving material transversely to a pulling direction of the screed arrangement when the extending screed is stationary relative to the base screed, wherein the first extending screed comprises the material deflecting member, wherein the second extending screed is positioned further away from the base screed in the pulling direction than the first extending screed.

A paving machine can include a frame; a screed coupled to the frame; a plurality of sensors to scan a surface of an asphalt mat behind the screed; and a controller coupled to the plurality of sensors, the controller configured to determine a smoothness of the asphalt mat and to make changes to one or more paving characteristics of the paving machine to improve the smoothness of the asphalt mat.

A paving machine can include a frame; a screed coupled to the frame; a plurality of sensors to scan a surface of an asphalt mat behind the screed; and a controller coupled to the plurality of sensors, the controller configured to determine a smoothness of the asphalt mat and to make changes to one or more paving characteristics of the paving machine to improve the smoothness of the asphalt mat.

A paving machine can include a frame; a screed coupled to the frame; and the screed including a main screed plate and an extender screed plate, each of the main screed plate and the extender screed plate having an angle sensor associated therewith, the angle sensor for each of the main screed plate and the extender screed plate being positioned and configured to determine a paving angle of the main screed plate and the extender screed plate; and a controller, the controller configured to receive the paving angles of the main screed plate and the extender screed plate from the angle sensors and to change the paving angle of the main screed plate and the paving angle of the extender screed plate independently of each other.

A paving machine can include a frame; a screed coupled to the frame; and the screed including a main screed plate and an extender screed plate, each of the main screed plate and the extender screed plate having an angle sensor associated therewith, the angle sensor for each of the main screed plate and the extender screed plate being positioned and configured to determine a paving angle of the main screed plate and the extender screed plate; and a controller, the controller configured to receive the paving angles of the main screed plate and the extender screed plate from the angle sensors and to change the paving angle of the main screed plate and the paving angle of the extender screed plate independently of each other.

A road finishing machine comprises a tractor and a screed hinged to the tractor to be towed behind the tractor. At the tractor, a main control platform of the road finishing machine is provided which offers space for an operator and comprises operational controls for controlling functions of the road finishing machine. The main control platform has a roof, wherein a lighting unit with a light source is provided at the roof. The lighting unit comprises a housing which accommodates the light source and has a reflector. The reflector is configured to reflect light emitted by the light source into a working area of the screed so that the working area of the screed is illuminated indirectly.

A strike off assembly for a placer spreader apparatus includes a strike off support beam and left and right side plate assemblies attached to ends of the support beam. A strike off plate assembly includes a left strike off plate portion and a right strike off plate portion pivotably connected together. A plurality of strike off actuators are connected to the strike off plate assembly and configured to raise and lower the strike off plate assembly relative to the support beam to vary a height of a material placement space.