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Cam Balance Mechanism Systems and Methods

  • US 20120187256A1
  • Filed: 07/26/2011
  • Published: 07/26/2012
  • Est. Priority Date: 07/30/2010
  • Status: Active Grant
First Claim
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1. A lift mechanism, comprising:

  • a base;

    a support column coupled to the base;

    a mounting portion movably coupled to the support column;

    an energy storage member coupled to the support column; and

    a balance mechanism coupled between the energy storage member and the mounting portion, the balance mechanism comprisinga first cam,a second cam rotationally coupled to the first cam, anda wheel rotationally coupled to the first cam and the second cam, wherein the first cam and the second cam are configured to convert a variable force exerted by the energy storage member into a substantially constant force applied to the mounting portion.

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