Abstract: The invention relates to a construction machine, in particular a road finishing machine, which can be set to at least two different operating modes by the operator. With a control system, a determined position for a drive can be stored in a first operating mode to which the drive automatically moves during a change from a second operating mode back to the first operating mode. In case of a change of the operating mode from the second operating mode to the first operating mode, several drives can optionally also be simultaneously moved to the previously stored position.

Abstract: The invention relates to a charging vehicle (1) for conveying road-surfacing mix to a road-finishing machine, wherein the charging vehicle (1) comprises a conveyor assembly (5) and a machine drive (6). The invention is characterized in that the machine drive (6) is arranged on the charging vehicle (1) laterally offset with respect to the conveyor assembly device (5).

Abstract: A method of laying a finishing layer with a road finisher F having a screed B, whereby the screed, equipped with a tamper device T and a smoothing plate, at least compacts and superficially smoothes the finishing layer, and the stroke and/or the frequency of the tamper device T are remotely varied for laying a finishing layer with a paving thickness and/or laying rate V which vary over the pave width and transversely to the working direction R within the pave width. A road finisher having a screed suitable for implementing the method set forth above wherein the road finisher or screed has an adjustment device for the remotely actuated local variation of at least the stroke of the tamper device within the pave width.

Abstract: A construction machine includes a sensor unit having a measurement range. The sensor unit is variable in its orientation relative to the construction machine, whereby position or orientation of the measurement range relative to the construction machine is also variable. The sensor unit is configured for detecting position of an external reference. The construction machine further includes a setup assistance system including a display configured to indicate to an operator while the sensor unit is oriented relative to the reference in which direction the sensor unit has to be moved in order for the reference to be located in the measurement range. The sensor unit is configured to detect a position of the reference relative to the sensor unit in at least two dimensions, and the display is configured to display the position of the reference relative to the measurement range for the at least two detected dimensions simultaneously.

Abstract: A system for controlling construction site vehicles has a plurality of construction site vehicles and a control room. Data can be transmitted on communication channels between the control room and the construction site vehicles. In the control room, at least one digital map is stored in which at least one additional piece of information is stored for individual road sections, in addition to the route of the respective road section. A navigation module is provided and designed to generate, with reference to the at least one digital map, navigation recommendations for the construction site vehicles.

Abstract: A construction machine according to the disclosure comprises a primary drive configured to generate waste heat and one or a plurality of machine components, the machine components being arranged in the area of the primary drive of the construction machine. At least one of the machine components is arranged in a housing including at least one flow passage through which ambient air is sucked using underpressure or which can have ambient air supplied thereto using overpressure so that an air current is created.

Abstract: A construction machine according to the disclosure comprises a material hopper for receiving bulk material. Moreover, the construction machine includes a material conveying system for conveying bulk material. The material conveying system comprises at least one conveying screw in the area of the hopper. A gap extends underneath the at least one conveying screw, and the gap has a cross section that varies in a conveying direction of the at least one conveying screw.

Abstract: A road finishing machine having an extendable screed and including an actuation instrument manually movable by the operator for adjusting the speed of a hydraulic movement actuator of the extendable screed.

Abstract: In a road finishing machine comprising at least one screed, a machine control, and a ventilation system including a fan, the fan can be switched on or off via the machine control automatically independent of the operator and exclusively depending on demand. According to the invention, before or during the laying operation, a defined demand for the operation of the ventilation system is determined, and during or for the laying operation, the ventilation system is operated independent of the operator and automatically, and optionally power-controlled, upon determination of the defined demand.

Abstract: The invention relates to a self-propelling machine for processing bituminous or concrete pavement material, in particular a road finisher or a feeder. The machine comprises an internal combustion engine as a primary drive source, a controller for the engine, said controller receiving control signals, at least one additional drive unit for functional and operational components of the machine as well as at least one hydraulic circuit comprising a hydraulic medium reservoir. The invention is characterized in that the controller is configured for automatically causing starting and/or stopping of the engine in response to receipt of at least one specific control signal.

Abstract: An external control stand for controlling at least one working component of an self-propelled construction machine comprises at least one display panel and a plurality of input elements, the external control stand comprising at least one mounting section to mount it to the construction machine. The external control stand is characterized in that it comprises a lower shell, an upper shell, and an impact protection, the impact protection being configured to be in contact with the lower shell and the upper shell.

Abstract: A tamper of a screed having an eccentric shaft including an eccentric section and an eccentric bushing rotatably mounted in a connecting rod driving a tamper bar. The stroke of the tamper bar is adjustable by a relative rotation between the eccentric shaft and the eccentric bushing, and a tappet and a preselection area with two tappet stop positions defining two different tamper bar strokes are provided between the eccentric shaft and the eccentric bushing, enabling adjustment of the tappet to each tappet stop position, by reversing the direction of rotation of the eccentric shaft to switch between the two strokes.

Abstract: A self-propelling machine for processing bituminous or concrete pavement material, in particular a road finisher or a feeder. The machine comprises an internal combustion engine as a primary drive source, a controller for the engine, said controller receiving control signals, at least one additional drive unit for functional and operational components of the machine as well as at least one hydraulic circuit comprising a hydraulic medium reservoir. The controller is configured for automatically causing starting and/or stopping of the engine in response to receipt of at least one specific control signal.

Abstract: A method for controlling the process laying a layer in a selectable paving thickness with a road finisher in which the laying process is automatically controlled in that a target value for the paving thickness is entered into an automatic closed-loop control system and communicates the actuating signals to such members and the signals. A road finisher has a computerized, either fully automatic or operator aided closed-loop control system for the direct control of the laying process with control of the paving thickness to a predetermined target value and for the optimization of the operating point of the pre-compaction system, which is connected to sensors at least for the acquisition of the setting angle of the screed, of the paving thickness and of the laying rate.

Abstract: The invention relates to a charging vehicle (1) for conveying road-surfacing mix to a road-finishing machine, wherein the charging vehicle (1) comprises a conveyor assembly (5) and a machine drive (6). The invention is characterized in that the machine drive (6) is arranged on the charging vehicle (1) laterally offset with respect to the conveyor assembly device (5).

Abstract: A belt conveyor for a road-finishing machine or a charger. The belt conveyor includes a conveyor belt in which a displaceably mounted support element abuts the conveyor belt, and a first and a second piston cylinder unit operate to displace the support element. The first and the second hydraulic piston cylinder units can be pressurised independently of each other in order to move the support element into a desired inclined position. If the conveyor belt of the belt conveyor runs laterally away from the support element, the out-of-true running of the conveyor belt can be counteracted by an inclined position of the support element which moves the conveyor belt back into its original position.

Abstract: The invention relates to a material conveyor system (1) for a road paver and feeder. The material conveyor system (1) comprises a material hopper (2), which comprises a first and a second hopper half (3, 4), a main conveyor device (5), which defines a main conveyor flow and which runs between the first and the second hopper halves (3, 4), and conveying screws (6, 7), which define a transverse conveyor flow and which are arranged in the hopper halves (3, 4). The material conveyor system (1) is characterised in that the conveying screws (6, 7) can be operated independently of the main conveyor device. The independent operation of the conveying screws (6, 7) and the main conveyor device (5) makes it possible to achieve improved homogenisation of the mixing temperature of the paving material.

Abstract: The invention relates to a feeder (B) for conveying paving mixture to a road paver, whereby the feeder has a plurality of working assemblies (M, Q, 5, 10) and a control area (12). According to the invention an automatic mode can be set in the control area (12) for at least one of the working assemblies, and a conveyor main switch (15) is provided upon operation of which all assemblies set to automatic mode are activated with predetermined operating parameters.

Abstract: The invention relates to a construction machine such as a road paver with an electric generator.

Abstract: In a screed with a basic screed and at least one extendable screed movable relative to the basic screed with a hydraulic cylinder and an electro-hydraulic control comprising a magnet-actuated directional control valve for at least controlling the direction of the hydraulic cylinder, the directional control valve for changing the rate of motion of the hydraulic cylinder is guided by an operator or automatically and is a proportional directional control valve (W) with proportional-electric direct actuation or proportional-electric-hydraulic pilot control. The proportional directional control valve for the hydraulic cylinder is connected on the actuation side with an electro-hydraulic control of a hydraulic system of the road finishing machine.