Patent ID: 6347688
Filing Date: 2002-02-19
Classification: A61G

Abstract:
New and improved Wheelchair Rollback Stop apparatus for use with a wheelchair, having a frame, a seat and wheels, that are secured to the frame by means of bolts, said wheelchair bolts having a length and an outer diameter, comprising:a.) a plurality of tubular major members, said tubular major members having a first end, a middle section and a second end, said tubular major members having a bend at the middle section, said tubular major members having threaded holes situated at the first end, said tubular major members having holes situated and at the second end, said tubular major members having an attachment bracket situated between the middle section and the first end, said attachment bracket having at least two holes therethru with one having internal threads and one having a smooth internal wall; b.) a plurality of rod bent members, said rod bend members having a primary end, a mid section and a secondary end, said rod bent members having a series of holes at the primary end, said rod bent members are bent at an angle at the mid section, said primary end being sized and shaped to have the primary end slideably fit within the first end of the tubular major members; c.) a plurality of cane tip members, said cane tip members having a friction tip end and a nonfriction tip end, said cane tip members having a series of holes at the nonfriction tip end, said nonfriction tip end being sized and shaped to have the nonfriction tip end slideably fit within the second end of the tubular major members; d.) a plurality of bearings, said bearings having an inner diameter and an outer diameter, said inner diameter being sufficient to frictionally accept the wheelchair bolts, one bearing being fixedly attached, at the bearings outer diameter, to each tubular major member at the bend at the tubular major member middle section; e.) a plurality of elongated bolts, said elongated bolts having a length and an outer diameter, said elongated bolts length exceeding the length of the wheelchair bolts, the length of said elongated bolts being sufficient to extend thru the wheelchair wheel, the wheelchair frame, the bearing and beyond a predetermined distance, said elongated bolts diameter being sufficient to not exceed the inner diameter of the bearings and at the same time sufficient to be frictionally engaged within the inner diameter of the bearings; f.) a plurality of springs with hooked ends, sized and shaped in order that one hooked end will fit thru one of the smooth walled holes in the tubular major member attachment bracket and the other hooked end will engage the wheelchair frame at a desired point; g.) a plurality of adjustable stops, said adjustable stops being threaded members with a top end, a mid section and a bottom end, said adjustable stops being sized and shaped to frictionally fit within the threaded hole in the tubular major member attachment bracket, said adjustable stops being a predetermined length in order to be of sufficient length to engage with the wheelchair frame at a desired position; h.) a plurality of lock screws sized and shaped to frictionally secure the rod bent members primary end, in a desired position, within the tubular major member first end, when inserted thru the threaded holes in the tubular major member first end and secured against the rod bent member primary end; and i.) a plurality of lock pins sized and shaped secure the cane tip members in a desired position when inserted thru the holes in the second end of the tubular major member second end and the appropriate holes in the cane tip members nonfriction tip end.