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FOLDIND TREADMILL OFFERING BUFFERING EFFECT DURING FOLDING AND UNFOLDING THEREOF

  • US 20090111664A1
  • Filed: 10/26/2007
  • Published: 04/30/2009
  • Est. Priority Date: 10/26/2007
  • Status: Abandoned Application
First Claim
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1. A folding treadmill offering buffering effect during folding and unfolding thereof, comprising a base that has a circular tread belt as well as a power cylinder therein, wherein the power cylinder includes a pressurization chamber and an oil-air cylinder chamber loaded with pressured air and oil of a predetermined amount, whereby a phased-changeable deceleration resistance can be provided during folding and unfolding the treadmill due to velocity difference between air and oil and the buffering effect effective in both lifting and lowering of the base can be achieved.

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