Strike-off beam and spreader plow assembly for placer/spreader

• US 7,458,748 B2
• Filed: 10/19/2007
• Issued: 12/02/2008
• Est. Priority Date: 03/10/2005
• Status: Active Grant

• Current Assignee: Guntert & Zimmerman Const. Div., Inc.
• Original Assignee: Guntert & Zimmerman Const. Div., Inc.
• Inventors: Francis, Rick, Guntert, Ronald M. Jr.
• Primary Examiner(s): Addie; Raymond W
• Application Number:
  US11/975,494
• Publication Number:
  US 20080044226A1
• Time in Patent Office: 410 Days
• Field of Search: 404/82, 404/101, 404/105, 404/108, 404/110, 404/118, 404/119, 404/83
• US Class Current: 404/118
• CPC Class Codes: E01C 19/185 for both depositing and spreading-out or striking-off the deposited mixture laying-down the materials and consolidating them, or finishing the surface, E01C19/48
• CPC Class Codes: E01C 19/42 Machines for imparting a smooth finish to freshly-laid paving courses other than by rolling, tamping or vibrating for distributing only E01C19/12; hand-actuated smoothing tools E01C19/44
• 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 2301/18 the whole machine being laterally slidable

Abstract

In combination with a placers/spreader having a frame including at least two side bolsters standing parallel to the subgrade path and at least two cross beams spanning the subgrade path forming a conveyor supporting structure. A rail system is attached spanning the frame, and has a roll in/roll out conveyor with a cantilevered support at one of the side bolsters and a support for attachment to and support from the rail system. The conveyor moves in traversing motion across the frame to distribute concrete. The improvement comprises a strike off beam and spreader plow assembly for trailing attachment to the frame of a placer/spreader. We thus disclose a strike off beam with spreader plow assembly which can be removably attached to either side of a placer/spreader to avoid the necessity of relocating the receiving conveyor when the location of the access road changes from one side to the other or direction of spreading changes. We additionally disclose a method of operation the strike off beam from a placer/spreader to prevent the accumulation of excess concrete the path of the following paver.

Claims

1. A method of transporting a placer/spreader including a frame carrying a conveyor for supplying material to be placed onto a substrate to be paved, the conveyor being movable relative to the frame between a retracted position in which the conveyor is substantially disposed beneath the frame and an extended position in which the conveyor extends laterally from the frame, a strike-off beam extending parallel to and removably attached to the frame, and a spreader plow arrangement connected with the frame and including a spreader plow car with a spreader plow blade laterally movable substantially parallel to the frame and the strike-off beam, the spreader plow having a width less than a spacing between the frame and the strike-off beam so that the spreader plow car with plow blade can reciprocate in a lateral direction for spreading the material onto the substrate during operation of the placer/spreader, the method comprising moving the strike-off beam and the spreader plow arrangement towards each other in a direction generally transverse to the strike-off beam to positions proximate to each other so that a part of the spreader plow arrangement overlies the strike-off beam, loading the frame with the conveyor in its retracted position onto a transport vehicle, nesting the spreader plow arrangement and the strike-off beam transport vehicle while in the positions proximate to each other and adjacent the frame, and with the transporting vehicle moving the frame with the retracted conveyor and the nested strike-off beam and the spreader plow arrangement to a different location.

2. A method according to claim 1 wherein the spreader plow blade faces in the lateral direction in which the spreader plow moves, and including removing the plow blade from the spreader plow car to reduce a spacing between the strike-off beam and the spreader plow arrangement when they are in the proximate positions relative to each other.

3. A method according to claim 2 wherein the strike-off beam includes generally horizontally oriented first and second bars which extend from the strike-off beam and couple the strike-off beam to the frame, and wherein the method further includes attaching the spreader plow arrangement to the first and second bars so that the spreader plow arrangement can be moved along the bars, and moving the spreader plow arrangement along the first and second bars to the proximate positions where the part of the spreader plow arrangement overlies the strike-off beam.