Land vehicles – Wheeled – Occupant propelled type
Patent
1988-06-10
1989-12-19
Marmor, Charles A.
Land vehicles
Wheeled
Occupant propelled type
280650, 280657, 280 62, 280278, 297 53, 297378, 297436, B62M 11 A
Patent
active
048878260
ABSTRACT:
A lightweight foldable wheelchair is provided which comprises a seat having a base and a back hingedly attached to the base, the back being foldable to overlie the seat base; a pair of large wheels each demountably attached to the end of an axle at the bottom rear of the seat base and rearward of the center of gravity of the chair; a first strut having its rearward end hingedly mounted to the underside forward portion of the seat base of the seat; and a second strut having its rearward end hingedly mounted to the underside of the seat base of the seat rearwardly of the first strut and forward of the wheel axle, the forward ends of both struts abutting below and forward of the seat and securing a demountable caster wheel and hingedly mounted footrest, and the struts being foldable to underlie the seat. The wheelchair can therefore be folded into a compact configuration when the wheels are demounted. The chair is formed of lightweight materials such as carbon fiber composites and has a total weight substantially less than that of typical prior art "lightweight" or "ultralight" wheelchairs.
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Equalizer Corp., Operations Manual for the Equalizer T2, (1981), pp. 1-9.
Finlay Tamara L.
Marmor Charles A.
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