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Mobile and adaptable wheel chair

  • US 4,339,013 A
  • Filed: 05/12/1980
  • Issued: 07/13/1982
  • Est. Priority Date: 05/12/1980
  • Status: Expired due to Term
First Claim
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1. A wheel chair comprising:

  • a frame;

    a transverse torsion bar rotatably mounted near its ends on the forward portion of said frame;

    a pair of rearwardly extending, elongated wheel support arms non-rotatably mounted on the ends of said torsion bar;

    a rear wheel rotatably mounted at the trailing end of each of said wheel support arms;

    a control arm non-rotatably secured to the mid-portion of said torsion bar;

    a hydraulic ram pivoted between said control arm and said frame so that the position of the piston in said hydraulic ram will determine the angular disposition of said wheel support arms, and said hydraulic ram when set holds said mid-portion against rotation, so that torsion at one end of said torsion bar is not transmitted to the other end thereof; and

    at least one front wheel rotatably mounted at the forward end of said frame.

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