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Vehicle track assembly

  • US 8,763,716 B2
  • Filed: 12/06/2012
  • Issued: 07/01/2014
  • Est. Priority Date: 05/02/2000
  • Status: Expired due to Term
First Claim
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1. A track assembly for a vehicle, the track assembly having a longitudinal axis and comprising:

  • (a) a single piece endless belt defining a ground engaging run, the ground engaging run having;

    (i) first and second lateral edges and an outer ground engaging face extending between the first and second lateral edges, the outer ground engaging face defining a surface that is generally continuous over its extent;

    (ii) an inner face including;

    (1) a belt guide projecting inwardly from the inner face, the belt guide being located between the first and second lateral edges;

    (2) a first support wheel engaging surface between the first lateral edge and the belt guide, the first support wheel engaging surface being generally continuous along the longitudinal axis;

    (3) a second support wheel engaging surface extending between the second lateral edge and the belt guide, the second support wheel engaging surface being generally continuous along the longitudinal axis;

    (4) the belt guide having a tip portion vertically inwardly spaced apart from the first support wheel engaging surface and from the second support wheel engaging surface;

    (b) a support wheel arrangement engaging the ground engaging run, the support wheel arrangement including;

    (ii) a first support wheel mounted for rotation about a first axis that is generally transverse to the longitudinal axis of the track assembly, the first support wheel having a peripheral surface in rolling contact with the first support wheel engaging surface;

    (iii) a second support wheel mounted for rotation about a second axis that is generally transverse to the longitudinal axis of the track assembly, the second support wheel having a peripheral surface in rolling contact with the second support wheel engaging surface;

    (iv) the first and second support wheels being spaced apart to define therebetween a void area for receiving the belt guide;

    (c) the first support wheel and the second support wheel being mounted for pivotal movement via a pivot structure about a third axis which is generally transverse to the first axis and to the second axis.

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