Pull type asphalt paver

• US 4,102,590 A
• Filed: 11/14/1977
• Issued: 07/25/1978
• Est. Priority Date: 11/14/1977
• Status: Expired due to Term

• Current Assignee: Paving Products, Inc.
• Original Assignee: Paving Products, Inc.
• Inventors: Zanzie, Edward A.
• Primary Examiner(s): Byers, Nile C.
• Application Number:
  US05/851,150
• Time in Patent Office: 253 Days
• Field of Search: 404/110, 404/108, 404/101, 404/104, 404/105
• US Class Current: 404/110
• CPC Class Codes: E01C 19/182 solely for depositing

Abstract

A pull type asphalt paver for spreading asphalt onto a road surface is disclosed as having means to avoid dump truck damage to the paver during operation and transporting thereof, means to readily enlarge the width of an asphalt layer on a road surface, and means to facilitate the metering and control of asphalt discharged by the paver on a road surface.

Claims

1. A pull type asphalt paver for spreading asphalt onto a road surface, said paver including a wheeled frame which supports a hopper for receiving asphalt from a dump truck associated therewith, said hopper having a bottom section, a back section and opposite side sections connecting the bottom and back sections to each other, said hopper also being provided with a chute in the vicinity of the juncture of the bottom and back sections through which the asphalt is discharged onto a road surface, said hopper further being provided with laterally movable wing sections on opposite sides of said hopper along bottom and side sections thereof to accomodate dumping of asphalt into the hopper when the dump truck bed is raised without causing contact between the dump truck and the paver, each laterally movable wing section on opposite sides of said hopper being provided with a bottom extension, side extension and back extension, the bottom and side extensions of each laterally movable wing section being laterally movable in and out relative to the bottom and side sections of the hopper, and the back extension of each laterally movable wing section being pivotally mounted relative to the side sections of the hopper in order to enable the back extension of each laterally movable wing section to be disposed substantially parallel to the side sections of the hopper and allow asphalt to be discharged through the bottom and side extensions of each laterally movable wing section.

2. The pull type paver as defined in claim 1 and including an auger indirectly supported by the wheeled frame which is positioned adjacent the chute for spreading asphalt on the road surface that is discharged through said chute, and a screed section supported by the wheeled frame that is positioned downstream of the auger for leveling the asphalt spread onto the road surface, said screed section having a screed extension corresponding to the extension of the laterally movable wing sections.

3. The pull type paver as defined in claim 2 and including a pivotally mounted hopper gate supported from the back section to control and meter the flow of asphalt from the chute to the road surface.

4. The pull type paver as defined in claim 3 wherein the bottom section of the hopper is inclined toward the back section at an angle of approximately 30°

from horizontal, and the back section of the hopper is at an angle of approximately 90°

relative to said bottom section, said pivotally mounted hopper gate when fully closing said chute being in alignment with said back section.

5. The pull type paver as defined in claim 4 and including an auger supported by the wheeled frame which is positioned adjacent the chute for spreading asphalt on the road surface that is discharged through said chute, and a screed section supported by the wheeled frame that is positioned downstream of the auger for leveling the asphalt spread onto the road surface, said chute, pivotally mounted gate and auger being visible by an operator standing on the screed section to facilitate control and metering of asphalt discharged through said chute.