초록 ▼

The invention pertains to wheelchairs, and more particularly, to a wheelchair seat having a seat back member which substantially maintains a constant vertical angle when the seat bottom or rail is pivotably raised and lowered. Accordingly, the angle between a seat back and seat rail is changed durin

The invention pertains to wheelchairs, and more particularly, to a wheelchair seat having a seat back member which substantially maintains a constant vertical angle when the seat bottom or rail is pivotably raised and lowered. Accordingly, the angle between a seat back and seat rail is changed during adjustment of the seat rail.

대표청구항 ▼

1. A wheelchair having a vertically adjustable seat assembly, comprising: a frame, said frame having an intermediate rear frame member; wheels rotatably secured to said frame; a seat assembly, said seat assembly comprising: a back member, a rail member, a seat bracket, and an upright leg membe

1. A wheelchair having a vertically adjustable seat assembly, comprising: a frame, said frame having an intermediate rear frame member; wheels rotatably secured to said frame; a seat assembly, said seat assembly comprising: a back member, a rail member, a seat bracket, and an upright leg member; said back member, rail member, seat bracket, and upright leg member being separate and distinct members, said seat bracket connected to said back member, said seat bracket connected to said rail member, said upright leg member being vertically movable and adjustable in said intermediate frame member, wherein said upright leg member telescopically engages said intermediate rear frame member, wherein the angle between said back member and said rail member varies as said upright leg member is telescoped in said intermediate frame member, and wherein said rail member is pivotally connected to a front portion of said frame by a single pivot point.