Material anti-segregation curtain for a paver
AssigneeBlaw-Knox Construction Equipment Corporation
InventorAdrian Baker
Life of this patent
Estimating the term…
Abstract
An anti-segregation device (10) for preventing segregation of paving material (P) that is applied to a road bed (7) by a paving vehicle (1). The anti-segregation device (10) includes a first end (14) that is connected with the frame (2of the paving vehicle (1) and an opposing end (16) proximal to the road bed (7). The anti-segregation device (10) is configured to substantially contain paving material (P) between the anti-segregation device (10) and a screed (3) on the paving vehicle (1). The anti-segregation device (10) substantially prevents larger material particles from falling, rolling or otherwise moving forwardly from the remainder of the paving material head (H) so as to generally prevent material segregation.
Claims16
A paving vehicle for spreading paving material onto a road bed, the paving vehicle comprising:
- a frame having a front end and a rear end;
- a screed for leveling the paving material, the screed being connected with the frame so as to be pulled from the rear end of the frame and having a front surface;
- an auger positioned forwardly of the screed and configured to spread the paving material along the front surface of the screed;
- and
- an anti-segregation device positioned near the auger for preventing segregation of the paving material disposed on the road bed in front of the screed, the anti-segregation device including a flexible curtain having an upper end attached to the frame, a lower end contactable with the road bed and a retentive surface facing generally toward the screed, the retentive surface being configured to generally contain the paving material between the curtain and the screed, the curtain being bendable at a plurality of positions spaced vertically between the upper and lower ends of the curtain, the flexible curtain including a plurality of chains attached to the frame of the paving vehicle.
A paving vehicle for spreading paving material onto a road bed, the paving vehicle comprising:
- a frame having a front end and a rear end;
- a hopper for holding a supply of paving material, the hopper being mounted on the front end of the frame;
- a conveyor which extends longitudinally on the frame and transports the paving material from the hopper to the rear end of the frame where the paving material falls off the rear end of the frame onto the road bed;
- a screed for leveling paving material, the screed being connected with the frame so as to be pulled from the rear end of the frame;
- and
- an anti-segregation device positioned near the screed for preventing segregation of the paving material that is positioned on the road bed in front of the screed, the anti-segregation device including a flexible curtain having a first end that is secured to the frame of the paving vehicle and a second end that is proximal to the road bed, the flexible curtain including an elongated mounting bar that extends laterally across the frame and a plurality of chains spaced close together across along the length of the mounting bar to provide a continuous retentive surface for the paving material.
An anti-segregation device for a paving vehicle for spreading paving material onto a base surface, the paving vehicle including a frame having a rear end, a screed connected with the frame so as to be pulled from the frame rear end and an auger positioned forwardly of the screed and configured for spreading paving material, the anti-segregation device comprising:
- a flexible curtain having a first end connected with the paving vehicle frame, a second end disposed proximal to the base surface and a retentive surface facing generally toward the screed, the retentive surface being configured to generally contain the paving material between the curtain and the screed, the flexible curtain being formed of a plurality of elongated flexible members connected with and spaced along the vehicle frame, each flexible member being one of a chain, a wire rope and a cable.
Dependencies are inferred from the claim text.