| 摘要 |
A half-track assembly includes a movable idler wheel assembly secured to the vehicle chassis. A track is disposed engaging the idler wheel assembly and the drive wheel. Configuration characteristics of the idler wheel assembly serve to limit an amount of idler wheel assembly load support so that the idler wheel assembly supports no more than a percentage of drive wheel load that is not required to maintain drive wheel to track traction. With this construction, driving over level terrain is easier to control and more comfortable while the vehicle maintains greater traction over uneven terrain or terrain that is difficult to traverse. Moreover, because the moving idler can accept only a limited amount of rear wheel load, inherent stability characteristics are preserved.
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