Wheel chairs
AssigneeThe Spastics Society
InventorHarold Cragg
Life of this patent
Estimating the term…
Abstract
A wheel chair having electric driving means arranged to drive the rear wheels of the chair, each rear wheel and its associated electric driving means is supported by a wheel plate connected to the wheel chair frame by a resilient mounting embodying a suspension media providing independent suspension for the rear wheels. The electric driving means comprises one electric motor for each rear wheel with drive transmission to the associated wheel.
Claims5
An electrically driven wheel chair comprising a foldable frame supported on two pairs of wheels, the rear pair of said wheels being independently driven by electric driving means comprising an electric motor for each wheel of said rear pair;
- and battery power means connected to said electric motor through operable control means, a pair of wheel plates each supporting one of said rear wheels and said electric motor associated therewith, mounting means connected to said frame and mounting independently each one of said wheel plates for pivotal resilient movement of each of said wheel plates together with said rear wheel supported thereon about a horizontal axis inependent of said frame.
Dependencies are inferred from the claim text.