초록 ▼

This invention relates to an improved wheelchair adapted to provide enhanced mobility for the occupant together with making ground level activities available. The wheelchair comprises a main frame together with an extension frame telescopically secured to said main frame. A seat is operably secured

This invention relates to an improved wheelchair adapted to provide enhanced mobility for the occupant together with making ground level activities available. The wheelchair comprises a main frame together with an extension frame telescopically secured to said main frame. A seat is operably secured to the extension frame so that when the extension frame is moved away from the main frame, the seat is lowered, and when said extension frame is brought back to said main frame, the seat is raised. Means are provided for further enhancing stability in the form of a mechanism to selectively move the drive wheels apart for wider wheel tracking. A rear wheel castered to the extension frame is provided with a selectively operable torsion limiter.

대표청구항 ▼

A wheelchair adapted to selectively position the rider in positions of varying height from the ground comprising: a main frame; two drive wheels operably secured to said frame; a seat operably secured to said main frame and adapted to be selectively raised or lowered; an extension structure operably

A wheelchair adapted to selectively position the rider in positions of varying height from the ground comprising: a main frame; two drive wheels operably secured to said frame; a seat operably secured to said main frame and adapted to be selectively raised or lowered; an extension structure operably secured to said frame and adapted to selectively move relative to said main frame; coupling means operably secured to said seat, to said main frame, and to said extension structure said coupling means adapted to extend said extension structure relative to said main frame when said seat is lowered and to draw said extension structure towards said main frame when said seat is raised; a wheel operably secured to said extension structure, said wheel adapted to have selectively limited castering and adapted to support said wheelchair as a third point cooperating with said two drive wheels.