Lift chair

摘要

A lift apparatus has a frame with open sides and a web assembly slidably retained along the sides which extends from one end of the frame to the other. While the web assembly is retracted, the frame moves to pass around a mobility-impaired individual and rest against the surface supporting the individual. The web assembly is then extended to move underneath or behind the individual, providing lifting support. The frame is configurable for orientations ranging continuously between horizontal and upright sitting. The web assembly has an upper web contacting the individual, a lower web contacting the support surface, a strength layer carrying the individual's weight, and a roller nose bar assembly which is pulled to extend the web assembly. A hand-held power tool can drive the web assembly, adjustment of inclinations of the back and leg sections of the frame, and vertical motion of the lift arm.

主权项

1. A configurable lift chair comprising:
a wheeled base; a column attached to said base; a lift arm vertically movable along said column; a bridle attached to said lift arm; an elongate lifting frame attached to said bridle, said lifting frame including first and second frame sides with open space between said frame sides, wherein each frame side includes a middle section, a back section hinged to the middle section to pivot upwardly, and a leg section hinged to the middle section to pivot downwardly such that inclinations of said back and leg sections are selectively adjustable to provide orientations of said lifting frame ranging continuously between horizontal and upright sitting; at least one web extendible along said lifting frame between said frame sides; and means for extending said web longitudinally from an initial storage position at a first end of said lifting frame to a final deployed position at a second end of said lifting frame opposite said first end, wherein said lifting frame is supported proximate a first end thereof by said bridle, said bridle is rotatably attached to said lift arm, said lift arm is rotatably attached to said column, and said lift arm counter-rotates with rotation of said bridle to maintain a center of gravity of said lifting frame within a stable boundary of said base.