초록 ▼

A wheelchair capable of being constructed in several different sizes from components of standard size in order to permit users of different sizes and users with one or more handicaps to utilize such wheelchairs. The wheelchair includes a main frame and a foot support assembly which can be telescopic

A wheelchair capable of being constructed in several different sizes from components of standard size in order to permit users of different sizes and users with one or more handicaps to utilize such wheelchairs. The wheelchair includes a main frame and a foot support assembly which can be telescopically adjustably affixed to the main frame. In addition, a seat section can be telescopically adjustably affixed to the main frame such that the seat is located at a selected height and the foot support section can extend outwardly from the frame for a selected distance to accommodate users of differing height. The rear wheels are positionally mounted with respect to the main frame such that the rear wheels can be located in several different positions in order to change the overall center of gravity and the wheelbase of the wheelchair. In this way, the wheelchair can be used for conventional wheelchair movement, as well as for athletic activities. A pair of front wheels are also adjustably positionally mounted with respect to the main frame in order to change the angle of the wheelchair and the seat relative to the ground or other supporting surface.

대표청구항 ▼

A wheelchair comprising: (a) a main frame, (b) a first pair of connected and spaced apart plates attached to one side of said frame and a second pair of connected and spaced apart plates attached to an opposite side of said frame, (c) a plurality of axle receiving openings on each of said spaced apa

A wheelchair comprising: (a) a main frame, (b) a first pair of connected and spaced apart plates attached to one side of said frame and a second pair of connected and spaced apart plates attached to an opposite side of said frame, (c) a plurality of axle receiving openings on each of said spaced apart plates and openings in each of the plates of a pair being aligned to be capable of receiving a rear wheel axle in each of said axle receiving openings, (d) a rear wheel axle extending outwardly from the rear wheel axle openings on each of said pairs of plates, (e) flange means on at least one of the plates of each of said pairs for fastner attachment to a frame means of said wheelchair, (f) quick release means on said rear wheel axle to enable quick release and replacement of rear wheels on said rear wheel axle, such that said axles can be easily removed from one location and replaced in another axle receiving location on said plates so that the response and center of gravity and wheel base on said frame can be easily and quickly altered, said quick release means comprising: (1) at least one retaining pin extending outwardly from said axle and capable of being retracted therein to permit removal of a wheel on said axle, (2) manually actuable means on said axle for causing said retaining pin to be retracted upon actuation of said manually actuable means, (g) a pair of wheel post housings on said frame means, (h) a post extending vertically downwardly from each of said wheel post housings and being rotatable with respect to the associated post housing, (i) a separate bracket carried by each of said posts and being rotatable about a generally vertical axis relative to the associated wheel post housing, and each of said brackets having a pair of spaced apart plates with a plurality of pairs of vertically spaced apart aligned apertures in said spaced apart plates, (j) a separate wheel assembly for each said bracket and each wheel assembly being comprised of a wheel and an axle capable of being disposed in any of the plurality of pairs of aligned apertures to thereby adjust the plane of the frame and hence the angle of attack of the wheelchair relative to a ground plane, (k) a mounting member extending from each of the wheel post housings and being adapted for attachment to said frame means in a first position and a second position, the wheel post housings being located outwardly of the sides of the frame means when the associated mounting members are in the first position and being located inwardly of the sides of the frame means when the associated mounting members are in the second position, the first or second positions being a function of steering radius and steering stability, said rear wheels and front wheels normally being in engagement with the ground or other supporting surface when said wheelchair is propelled forwardly or in turns in normal transport, (l) a seat mounted on said frame for supporting an individual using such wheelchair, (m) a foot rest member of said frame and extending forwardly therefrom, and (n) a pair of rollers on said foot rest member and normally being spaced above the ground or other supporting surface a relatively sight distance above the lower ends of said front wheels when said wheelchair is used for normal transport, said wheelchair capable of being tipped by the user thereof so that said rear wheels are temporarily raised a relatively slight distance from the ground or other supporting surface and said rollers are lowered into engagement with the ground or other supporting surface.