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Treadmill apparatus with dual spring-loaded treads

  • US 5,626,539 A
  • Filed: 01/19/1996
  • Issued: 05/06/1997
  • Est. Priority Date: 01/19/1996
  • Status: Expired due to Term
First Claim
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1. Treadmill apparatus comprising:

  • first and second adjacent treadmills each having a continuous tread, and first and second ends, each of said treadmills including a rigid platform and rollers at each of said first and second ends for rotatably supporting said continuous tread on said rigid platform;

    a frame positionable on a supporting surface;

    first and second link means for respectively independently supporting the first and second ends of each of said first and second treadmills above said frame, each of said first and second link means having a first end pivotally connected to the frame and a second end pivotally connected to the rigid platform of each respective treadmill adjacent said respective end thereof;

    first and second means for resiliently supporting the respective first and second treadmills in a first position above a supporting surface;

    first and second resistance means for resisting downward movement of said first and second treadmills from said first position to a second position as weight is placed upon said treadmills, said first and second resilient supporting means returning said first and second treadmills from said second position to said first position when said weight is removed from said first and second treadmills, said first and second treadmills alternately moving up and down as an operator treads thereon; and

    drive means for respectively independently driving rotation of said continuous treads as said first and second treadmills are alternately reciprocated downward and upward during use.

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