Adjustable wheelchair

Land vehicles – Wheeled – Extensible

Patent

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Details

280 42, 280657, 297433, 297DIG4, A61G 500

Patent

active

047308427

ABSTRACT:
An adjustable wheelchair comprising a supporting frame having a front, a rear and a pair of sides defining a seat portion inbetween; a pair of main wheels rotatably mounted to the frame and a pair of secondary wheels rotatably mounted to the frame for pivotal movement with respect thereto. The frame includes a series of split clamps for continuous adjustment of the width of the seat portion over a defined range. A cushion is fastened to the seat portion by means of a pair of overlapping flexible supports having Velcro material thereon for joining the supports of varying degrees of overlap. The main wheels and secondary wheels are adjustable in both vertical and horizontal directions, and the chair is collapsible horizontally as opposed to vertically. The armrests are rotatable for allowing the chair back to be collapsed. A pair of footplates are swingably mounted to the frame for pivotal movement and the footplates may also be adjusted to varying degrees of inclination with respect to a horizontal plane.

REFERENCES:
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patent: 4351540 (1982-09-01), Minnebraker
patent: 4360213 (1982-11-01), Rudwick
patent: 4405142 (1983-09-01), Whetstine
patent: 4428594 (1984-01-01), Minnebraker
patent: 4431076 (1984-02-01), Simpson
patent: 4462604 (1984-07-01), Meyer
patent: 4477098 (1984-10-01), Minnebraker
patent: 4500102 (1985-02-01), Haury et al.
patent: 4515383 (1985-05-01), Minnebraker

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