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Folding sports wheelchair

  • US 4,595,212 A
  • Filed: 11/03/1983
  • Issued: 06/17/1986
  • Est. Priority Date: 11/16/1982
  • Status: Expired due to Term
First Claim
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1. A folding wheelchair comprising:

  • a frame assembly including left and right lower side frame portions and left and right back support frame portions;

    an operator supporting means including a lower supporting portion operatively connected with the left and right lower side frame portions for supporting the operator and a back supporting portion operatively connected with the back support frame portions for supporting the operator'"'"'s back;

    left and right rear wheel mounting assemblies for mounting left and right rear wheels to the left and right side frame portions, respectively, the rear wheel mounting assemblies being connected with the lower side frame portions;

    a pair of front wheel mounting assemblies for mounting front wheels to the lower side frame portions;

    a folding mechanism interconnecting the left and right side frame portions for selectively moving the side frame portions into a close parallel folded relationship, the folding mechanism including;

    a left pivot shaft,a right pivot shaft,a first left spacer member connected with the left pivot shaft for rotation therewith and pivotally connected with the left side frame portion,a first right spacer member connected with the right side pivot shaft for rotation therewith and pivotally connected with the right side frame portion,a second left spacer member connected with the left pivot shaft for rotation therewith and pivotally connected with the left side frame portion,a second right spacer member connected with the right pivot shaft for rotation therewith and pivotally connected with the right side frame portion, and,a rotation coordination means for coordinating the relative rotation of the left and right pivot shafts to rotate the first and second left and right spacer members in coordination with each other such that the first and second left and right spacer members rotate in coordination with each other as the wheelchair is folded and unfolded.

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