Patent classifications
E01C2301/14
Wide swath offset concrete screed
Methods and systems for making and using a wide swath offset concrete screed apparatus for screeding wet concrete slurry. The apparatus includes a cross support bar, an attachment mechanism for attaching the cross support bar to a liftable arm of a motorized vehicle, and lateral support bars for attaching a screed bar to the cross support bar. The screed bar is positioned offset from the motorized vehicle used to operate the screed, allowing the motorized vehicle to drive outside the forms.
ROAD PAVER WITH STEERING COMPENSATION AND CONTROL METHOD
A method for operating a road paver comprises paving a road surface with the road paver along a road bed, wherein a paving screed of the road paver is drawn over the road bed along a paving direction of travel. The following steps are performed using a curve correction unit: determining a value defining a steering angle of the road paver; calculating based on the determined value an expected offset of the paving screed, which results from a yawing movement of the road paver during steering with the steering angle defined by the determined value; and automatically correcting a lateral extension position of at least one lateral extension part of the paving screed based on the expected offset, so that the offset is compensated. The disclosure also refers to a road paver comprising a corresponding curve correction unit.
ROAD PAVER WITH HEATING ELEMENT FOR A SCREED
A road paver comprises a generator, a control device and a screed, the screed comprising a basic screed and being suited to be modified, by selectively attaching or detaching broadening parts, from a first to at least a second, different screed configuration. The basic screed and the broadening parts each comprise one compacting unit and one electric heating element to be supplied with power from the generator for heating the compacting unit to prevent the laying material from adhering to the compacting unit and to finish a high-quality road pavement. The control device is configured to individually switch on or off each one of the two resistance wire windings of the heating element of the basic screed depending on the screed configuration determined by the control device to distribute electrical power generated by the generator to the individual resistance wire windings.
EXPANDABLE AND CONTRACTABLE PAVER ASSEMBLY FOR NARROW ACCESS PATHS
A paver assembly includes a paving unit assembly having a first side wall, a second side wall, and an expandable frame connecting the first side wall and the second side wall together. The expandable frame can move the first side wall and the second side wall towards and away from one another to contract and expand the paving unit assembly so that a width of the paving unit assembly can be the same as a width of a surface paved by the paver assembly. The paver assembly can also include a first paving unit fixedly connected with respect to the first side wall and a second paving unit fixedly connected with respect to the second side wall, where the first paving unit and the second paving unit are offset with respect to one another and move past one another as the paver assembly expands and contracts.
Modular screed plate assembly and method of assembling a screed plate
The modular screed plate assembly and method has a road paver/finisher, a structural/conductor plate and modular screed plates. The road paver/finisher has a paver under side, a power source and a heating element, for heating the modular screed plates. The modular screed plates have coupling elements, and retainer quick-connect/releases, and align as a modular screed plate array, providing a tensionally yielding gap allowing the modular screed plate array to absorb pressures from paving operations. The structural/conductor plate couples with the coupling elements and has screed plate retaining locks to securely receives the retainer quick-connect/releases, in order to secure itself to the modular screed plates. The structural/conductor plate receives heat directly from the heating element, and provides indirect heat to the modular screed plate array.
Road finishing machine with transverse profile control
A road finishing machine comprises a screed, which includes at least one compacting unit. The road finishing machine furthermore comprises a GNSS receiver, as well as a material conveyor. The road finishing machine furthermore comprises an electronic control system which comprises a memory and a data processor, wherein in the memory, digital construction data, in particular a nominal height profile of a road pavement to be finished, are stored. The control system is configured to automatically control, based on the construction data, an actuator mechanism provided on the road finishing machine, in particular a levelling cylinder and/or a transverse camber adjustment and/or a slope adjustment and/or a berm adjustment, in order to install laying material with the nominal height profile and thereby a defined transverse profile for the respective position coordinate point of the road finishing machine determined with the GNSS receiver.
Wide Swath Offset Concrete Screed
Methods and systems for making and using a wide swath offset concrete screed apparatus for screeding wet concrete slurry. The apparatus includes a cross support bar, an attachment mechanism for attaching the cross support bar to a liftable arm of a motorized vehicle, and a roller screed attached to the cross support bar. The roller screed is positioned offset from the motorized vehicle used to operate the screed, allowing the motorized vehicle to drive outside the forms.
Wide Swath Offset Concrete Screed
Methods and systems for making and using a wide swath offset concrete screed apparatus for screeding wet concrete slurry. The apparatus includes a cross support bar, an attachment mechanism for attaching the cross support bar to a liftable arm of a motorized vehicle, and lateral support bars for attaching a screed bar to the cross support bar. The screed bar is positioned offset from the motorized vehicle used to operate the screed, allowing the motorized vehicle to drive outside the forms.
Screed assembly comprising a work station
A screed arrangement includes a screed assembly (1) for laying a road surface (3), the screed assembly (1) configured to determine a working width (W), viewed in the working direction (R), for laying of the road surface (3). The screed arrangement further includes a working station (9) for an operator (P) mounted on the screed assembly (1). The working station (9) is mounted on the screed assembly (1) in a vibration-decoupled manner, such that the transmission of vibrations from the screed assembly (1) to the working station (9) an be reduced or prevented.
CONTROL SYSTEM FOR A ROAD PAVER
The present disclosure relates to a control system for a road paver. The control system comprises a camera system configured to generate image data of an environment of the road paver. The control system further comprises a controller electronically connected to the camera system. The controller is configured to receive the image data from the camera system, and to apply an object recognition process on the received image data to identify an edge line serving as a reference line for a mat to be laid by the road paver, and to determine a three dimensional position of the identified edge line. The controller may automatically control the road paver, and may assist an operator to control the road paver based on the identified position of the edge line.