High-production truss-mounted screed assembly

A finisher machine comprising:

• a framework configured to be positioned transversely to a working surface of concrete, the framework configured to travel in a paving direction coincident to the working surface;
• a carriage configured to travel along a substantial length of the framework in a plurality of finishing passes in a transverse direction to the paving direction;
• an undercarriage mounted to the carriage, the undercarriage comprising:
• a screed assembly, the screed assembly configured to finish a portion of the working surface in each of the plurality of finishing passes;
• the screed assembly comprising an auger and a vibratory screed;
• at least one actuator, the at least one actuator configured to adjust a height of the screed assembly relative to the working surface;
• and
• an upper beam;
• wherein the screed assembly is coupled to the upper beam;
• wherein the at least one actuator is configured to adjust the height of the screed assembly relative to the working surface by adjusting a distance between the upper beam and the screed assembly;
• wherein the finisher machine is configured to move, by the carriage, the screed assembly between a first position on the framework to a second position on the framework in a strike-off pass, wherein the auger is disposed at the working surface for striking off material and the vibratory screed is disposed above the working surface as the screed assembly is moved between the first position and the second position;
• wherein the finisher machine is configured to raise, by the at least one actuator, the screed assembly from the working surface to above the working surface, wherein the screed assembly does not interfere with the working surface above the working surface;
• wherein the finisher machine is configured to move, by the carriage, the screed assembly between the second position on the framework of the finisher machine to the first position;
• wherein the finisher machine is configured to lower, by the at least one actuator, the screed assembly from above the working surface to the working surface;
• wherein the finisher machine is configured to move, by the carriage, the screed assembly between the first position on the framework to the second position on the framework in a finishing pass of the plurality of finishing passes, wherein the auger and the vibratory screed are each disposed at the working surface for striking off the material and finishing the working surface as the screed assembly is moved between the first position and the second position.

A method comprising:

• moving, by a carriage of a finisher machine, a screed assembly between a first position on a framework of the finisher machine to a second position on the framework in a strike-off pass, wherein the screed assembly comprises an auger and a vibratory screed, wherein the auger is disposed at a working surface for striking off material and the vibratory screed is disposed above the working surface as the screed assembly is moved between the first position and the second position;
• raising, by an actuator of the finisher machine, the screed assembly from the working surface to above the working surface, wherein the screed assembly does not interfere with the working surface above the working surface;
• moving, by the carriage of the finisher machine, the screed assembly between the second position on the framework of the finisher machine to the first position;
• lowering, by the actuator of the finisher machine, the screed assembly from above the working surface to the working surface;
• and
• moving, by the carriage of the finisher machine, the screed assembly between the first position on the framework of the finisher machine to the second position on the framework in a finishing pass, wherein the auger and the vibratory screed are each disposed at the working surface for striking off the material and finishing the working surface as the screed assembly is moved between the first position and the second position.