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Multi-stage spring for track tensioning system

  • US 20070087876A1
  • Filed: 03/17/2006
  • Published: 04/19/2007
  • Est. Priority Date: 10/19/2005
  • Status: Abandoned Application
First Claim
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1. A multi-stage spring for a track tensioner for a tracked vehicle, wherein the multi-stage spring has a rest position associated therewith, wherein the multi-stage spring is positionable in a first range of positions, a second range of positions and a third range of positions, wherein the first range of positions is closer to the rest position than is the second range of positions, and wherein the third range of positions is closer to the rest position than is the first range of positions, wherein the multi-stage spring is movable from an initial position in the first range of positions in a direction away from the rest position by a first range initial force, and wherein the multi-stage spring is movable from an initial position in the second range of positions in the direction away from the rest position by a second range initial force, wherein the first range initial force is greater than the second range initial force, and wherein the multi-stage spring is movable in the third range of positions to a third range final position by a third range final force, wherein the first range initial force is greater than the third range final force.

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