초록 ▼

A folding wheelchair that employs a pair of side frames, a rear wheel associated with each frame and a forward caster wheel associated with each frame, a pivotable back with a releasable lock to retain the chair in an open usable position or foldable nonusable position, a wheel shifting plate and li

A folding wheelchair that employs a pair of side frames, a rear wheel associated with each frame and a forward caster wheel associated with each frame, a pivotable back with a releasable lock to retain the chair in an open usable position or foldable nonusable position, a wheel shifting plate and link apparatus to effect a folding of the chair to a non-use width as well as allowing the wheels to shift and encompass the frames therebetween within the diameter of the wheels.

대표청구항 ▼

A folding wheelchair comprising: a pair of tubular side frames having a front and rear portion; a pair of casters one mounted on each of said frames at said front portion thereof; a flexible seat extending between said pair of side frames; a pair of wheels having axles one associated with each of sa

A folding wheelchair comprising: a pair of tubular side frames having a front and rear portion; a pair of casters one mounted on each of said frames at said front portion thereof; a flexible seat extending between said pair of side frames; a pair of wheels having axles one associated with each of said frames rearwardly of said casters; a back section pivotally mounted to each of said frames and projecting upwardly from said frames with a flexible back extending between said pair of frames; wheel shiftable means having an open position and a closed position slidably mounted on each of said side frames and each means retaining one of said wheels; foldable brace means extending between said wheel shiftable means having an open and closed position, tie bar means linked to said brace means and said frames; and linkage means interconnecting said back section and said wheel shiftable means whereby with downward pivoting of said back section toward said seat will simultaneously shift said wheels over said side frames and fold said pair of said frames toward one another to a non-use compact position.