Alignment restoration device for load transporting apparatus

  • US 8,561,733 B2
  • Filed: 12/11/2012
  • Issued: 10/22/2013
  • Est. Priority Date: 12/16/2011
  • Status: Active Grant
First Claim
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1. A load transporting apparatus configured to move a load over a ground surface in one or more incremental steps each including a load-movement phase and a recovery phase, the load transporting apparatus coupled to a load-bearing frame configured to support the load, the load transporting apparatus comprising:

  • a first support foot structured to interface with the ground surface, the first support foot having a length, width, and longitudinal centerline bisecting the width of the first support foot;

    a second support foot structured to interface with the ground surface, the second support foot having a length, width, and longitudinal centerline bisecting the width of the second support foot;

    first and second roller tracks respectively coupled to the first support foot and second support foot via a first king pin connector and a second king pin connector, respectively;

    first and second roller assemblies respectively positioned on the first and second roller tracks, each roller assembly including a roller frame and one or more rollers set in the roller frame;

    first and second lift mechanisms respectively coupled to the first and second roller assemblies;

    the first and second lift mechanisms each including a lift cylinder connected to the load-bearing frame, and a cylinder rod, where each of the first and second lift mechanisms are structured to lift the load-bearing frame at the start of the load-movement phase;

    first and second travel mechanisms respectively coupled to the first and second roller assemblies, each of the travel mechanisms structured to move the respective roller assembly relative to the respective support foot during the load-movement phase;

    a first linking device coupled to the first support foot;

    a second linking device coupled to the second foot;

    a first biasing device connected to the first linking device, the first biasing device structured to become activated during a load-movement phase when the first roller assembly is non-linearly displaced by the first travel mechanism relative to the first support foot, and structured to return the first support foot to an aligned position relative to the load-bearing frame during a recovery phase; and

    a second biasing device connected to the second linking device, the second biasing device structured to become activated during a load-movement phase when the second roller assembly is non-linearly displaced by the second travel mechanism relative to the second support foot, and structured to return the second support foot to an aligned position relative to the load-bearing frame during a recovery phase.

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