AGGREGATE HANDLING METHOD AND SYSTEM

• US 3,670,909 A
• Filed: 04/06/1970
• Issued: 06/20/1972
• Est. Priority Date: 04/06/1970
• Status: Expired due to Term

• Current Assignee: John H. Holland
• Original Assignee: John H. Holland
• Inventors: Holland, John H.
• Primary Examiner(s): Sheridan, Robert G.
• Application Number:
  US05/025,681
• Time in Patent Office: 806 Days
• Field of Search: 214/38R,38B,38BA,38BB,152,44,43 94/44,46
• US Class Current: 414/350
• CPC Class Codes: B60P 1/003 vehicles with loading gates B60P1/43 takes precedence
• CPC Class Codes: E01C 19/48 for laying-down the materials and consolidating them, or finishing the surface , e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ E01C19/002, E01C23/065 take precedence; devices for guiding or controlling the machines along a predetermined path E01C19/004
• CPC Class Codes: E01C 2301/02 Feeding devices for pavers

Abstract

A method for transferring crushed rock from a dump truck to the hopper of a paving machine without danger of spillage by interlocking the rear end of the dump bed with the upper portion of the hopper when the dump bed is raised into position to dump into the hopper. The hopper is provided with an upwardly extending centrally located bumper which is adapted to engage and push the rear end of the truck frame during the time the dump bed is raised to transfer aggregate from the dump bed into the hopper while permitting the truck to pivot relative to the hopper.

Claims

1. The method for transferring a volume of particulate material from a moving dump truck having a dump bed with a rear delivery end pivotally mounted adjacent the rear end of a spring supported truck frame into a moving hopper carried at one end of a vehicle and having a bottom section enclosed by opposite side walls, an inner end wall and a reinforced outer end wall to form an opening for receiving said material, comprising:

a. positioning said moving hopper and said moving dump truck so that said opening is aligned below the delivery end of said dump bed, b. moving said hopper and said dump bed together and thereby engaging the front of said outer end wall with said truck at a point below said dump bed, c. pivoting said dump bed to a position so that said delivery end moves downwardly toward said opening and the upper portion of said outer end wall of said hopper is retained between the lower end of the dump bed and the rear end of the truck by engagement of the dump bed with the upper portion of said outer end wall of said hopper, and d. transferring said volume of particulate material from said dump bed into said hopper.

2. A vehicular machine having a hopper disposed at one end for receiving aggregate from a dUmp truck, means carried by the machine at the front of the hopper for engaging a dump truck and positioning the dump truck such that aggregate will be dumped into the hopper as the dump bed is pivotally raised, and a reinforced member carried by the machine at the front of the hopper which extends upwardly to a point between the rear end of the dump bed and the frame of the truck when the dump bed is partially loaded and pivotally raised for engagement with the underside of the pivotally raised dump bed to prevent separation of the machine and dump truck at least until the bed is emptied.

3. The vehicular machine defined in claim 2 wherein the reinforced member includes a plate disposed at approximately the same angle as the angle of the dump bed when pivotally raised, the plate forming a portion of an interior wall of the hopper.

4. The vehicular machine defined in claim 3 wherein the first means has a vertically disposed surface projecting forwardly from the hopper and positioned to engage the truck frame.