Multi-adjustable wheelchair
AssigneeTekSource, LC
InventorsTony M. Pearce, Terry V. Pearce
Life of this patent
Estimating the term…
Abstract
Multi-adjustable wheelchair with adjustability features which accommodate the physical size and comfort of the wheelchair user is disclosed and claimed. The wheelchair includes (1) wheelchair frame width adjustment, (2) wheelchair rear axle position adjustment, (3) wheelchair seat height and bucketing angle adjustment, (4) wheelchair seat base width and length adjustment, (5) wheelchair seat back angle adjustment and (6) wheelchair seat fore and aft position adjustment.
Claims18
A device for providing wheelchair axle position adjustment with respect to a wheelchair frame comprising:
- an axle adjustment mechanism adapted for receiving a wheelchair axle lug, said axle adjustment mechanism comprising at least one receptacle and permitting adjustment of the lug within said at least one receptacle and permitting firm attachment of the lug within said mechanism, and
- a rotational adjustment mechanism comprising a plurality of fastener holes for rotationally adjusting the device with respect to the wheelchair frame in increments of less than 90 degrees.
A wheelchair rear wheel positioning frame for providing wheelchair axle position adjustment with respect to a wheelchair frame comprising:
- a rim,
- an axle adjustment mechanism comprising at least one lug receptacle within said rim, said axle adjustment mechanism being adapted for receiving a wheelchair axle lug, said axle adjustment mechanism permitting adjustment of the lug within said axle adjustment mechanism and permitting firm attachment of the lug within said at least one receptacle of said axle adjustment mechanism, and
- a rotational adjustment mechanism comprising a plurality of fastener holes for rotationally adjusting the device with respect to the wheelchair frame in increments of less than 90 degrees;
- wherein the positioning frame is a truss structure having an xyz coordinate system, the z axis being parallel to the wheelchair axle, the truss structure comprising:
- a plurality of connected structural plates, a majority of said plates being parallel to the z-axis in a first direction, each of the majority of said plates being thick in said first direction, each of the majority of plates being thick in a second direction which is a direction other than the z-axis, and each of said majority of plates being thin in a direction which is normal to said first direction and to said second direction.
Dependencies are inferred from the claim text.