초록 ▼

A power chair is provided comprising a frame transversely foldable between operating and transport positions. A seat is connected to the frame, with a pair of drive wheels also connected to the frame. The drive wheels are rotatable about a transverse axis below a portion of the seat supporting an oc

A power chair is provided comprising a frame transversely foldable between operating and transport positions. A seat is connected to the frame, with a pair of drive wheels also connected to the frame. The drive wheels are rotatable about a transverse axis below a portion of the seat supporting an occupant's thighs. The power chair further includes motors for driving respective drive wheels. Perspective motor/drive wheel combinations are pivotally connected to the frame. At least one ground-engaging idler wheel is connected to the frame, located rearward of the drive wheels. At least one anti-tip wheel is positioned above ground, forward of the drive wheels, and connected to the frame for movement relative to the frame upon encountering an obstacle.

대표청구항 ▼

[ What is claimed is:] [1.] A power chair comprising:a. a frame transversely foldable between operating and transport positions;b. a seat connected to said frame;c. a pair of drive wheels connected to said frame and rotatable about transverse axes below a portion of said seat supporting an occupant'

[ What is claimed is:] [1.] A power chair comprising:a. a frame transversely foldable between operating and transport positions;b. a seat connected to said frame;c. a pair of drive wheels connected to said frame and rotatable about transverse axes below a portion of said seat supporting an occupant's thighs;d. motors for driving respective drive wheels, respective motor/drive wheel combinations being pivotally connected to said frame;e. at least one ground-engaging idler wheel connected to said frame and located rearward of said drive wheels;f. at least one anti-tip wheel forward of said drive wheels and positioned above ground, said at least one anti-tip wheel connected to said frame for resilient movement relative to said frame upon encountering an obstacle;g. a pair of transversely spaced arms positioned on respective sides of said power chair; andh. means connected to said frame for adjustably positioning said arms at a plurality of heights, the means connected to said frame comprisingi. a tongue member fixedly connected to said arm, having a plurality of recesses in the surface thereof;ii. a housing member connected to said frame and having a receptacle of varying depth formed therein, being movable among positions at which various parts of said receptacle having different depths communicate with a selected one of said recesses; andiii. movable means resident in said receptacle and being of a size for receipt of a portion thereof by a recess with which said receptacle is communicating for interfering with movement of said tongue relative to said housing when said movable means is in a relatively shallow portion of said receptacle and freely permitting movement of said tongue when said movable means is in a relatively deep portion of said receptacle.