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Seat lumbar motion chair, assembly and method

  • US 5,735,574 A
  • Filed: 09/24/1996
  • Issued: 04/07/1998
  • Est. Priority Date: 09/13/1994
  • Status: Expired due to Fees
First Claim
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1. A seat and lumbar motion chair assembly comprising:

  • a back support including a forwardly facing back surface;

    a back support mounting assembly coupled to said back support and mounting said back support in a stationary position in a generally vertical orientation;

    a seat having an upwardly facing seat surface;

    a seat mounting assembly coupled to said seat and mounting said seat in a generally horizontal orientation proximate said back support for guided fore and aft movement of said seat along an upwardly tilting, arcuate path having an axis of curvature oriented parallel to said seat surface and to said back surface;

    a lumbar support; and

    a lumbar support mounting assembly mounting said lumbar support to proximate a rear of said seat for movement therewith and movably coupling said lumbar support to proximate a mid to full height of said back support for movement of said lumbar support in a manner following said fore and aft movement of said seat, whereby the buttocks and lumbar region of the user seated on said seat can remain supported in substantial contact with said seat and said lumbar support during fore and aft seat and body motion.

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