A sensor system for a construction machine, in particular a road finishing machine, includes a laser scanner and an evaluation unit. The laser scanner can be arranged on the construction machine or the road finishing machine itself and is configured to search a specified angular range for objects and to determine angles of the specified angular range according to distance values describing the distance to the one or several objects together with corresponding intensity values describing an intensity of a reflection resulting at the one or several objects. The evaluation unit is configured to detect an object as a reference together with corresponding angles based on a known pattern including the distance values and the intensity values across the angles. Further, the evaluation unit is configured to determine a distance to the reference and/or an angle with respect to the reference.

A road paver or a feeder having a chassis driven by a drive unit, and a material hopper arranged in the working direction at the front of the road paver or the feeder, the material hopper having a hopper side wall extending in the working direction and a discharge flap tiltable about a pivot axis extending transversely to the working direction, the discharge flap comprising a flap base and a flap side wall which extends next to the hopper side wall and is fixed to the flap base and supported to be moveable relative to the hopper side wall, a protective cover, which at least partially engages around the edge of the flap side wall, being arranged on the hopper side wall.

A road paver or a feeder having a chassis driven by a drive unit, and a material hopper arranged in the working direction at the front of the road paver or the feeder, the material hopper having a hopper side wall extending in the working direction and a discharge flap tiltable about a pivot axis extending transversely to the working direction, the discharge flap comprising a flap base and a flap side wall which extends next to the hopper side wall and is fixed to the flap base and supported to be moveable relative to the hopper side wall, a protective cover, which at least partially engages around the edge of the flap side wall, being arranged on the hopper side wall.

A cement screeding system in the form of a powered roller screed with a wet screed attachment. The wet screed attachment includes a wet screed shoe. A handle is rotationally isolated from the screed roller and is rigidly coupled to this wet screed shoe. As such, motion of this handle is transmitted to the wet screed shoe in a replicating fashion.