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Roller suspension apparatus for a belted vehicle

  • US 4,519,654 A
  • Filed: 12/20/1983
  • Issued: 05/28/1985
  • Est. Priority Date: 12/20/1983
  • Status: Expired due to Fees
First Claim
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1. A roller suspension apparatus adapted for use on a belted vehicle having a frame comprising:

  • a single pivot shaft adapted to be connected to the vehicle frame;

    a pair of arms each pivotally connected at one end to the pivot shaft and extending in opposite directions from the pivot shaft, each of said arms having a mounting surface at a distal end portion thereof;

    a pair of roller mechanisms individually connected to the distal end portions of said arms;

    a force transfer beam pivotally connected at its mid-portion to the pivot shaft and having first and second mounting surfaces individually generally facing a respective one of the mounting surfaces of said arms defining two pairs of facing mounting surfaces; and

    spring means positioned between each pair of facing mounting surfaces in load bearing and force transferring relation; and

    wherein said mounting surfaces are arranged relative to the pivot shaft so that substantially only compressive forces are tranmitted to the spring means upon movement of the mounting surfaces of each pair of facing mounting surfaces toward one another.

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