초록 ▼

One aspect of the present invention is a wheelchair that has a tiltable seat The wheelchair comprises a base frame, a seat frame, a plurality of pivotable side connection members, and at least one drive member. The base frame comprises a plurality of substantially parallel base frame side members, e

One aspect of the present invention is a wheelchair that has a tiltable seat The wheelchair comprises a base frame, a seat frame, a plurality of pivotable side connection members, and at least one drive member. The base frame comprises a plurality of substantially parallel base frame side members, each supporting a longitudinally movable connection. A longitudinally movable support member is slidably connected at each end to the longitudinally movable connection. The seat frame is tiltable relative to the base frame. The seat frame comprises a plurality of substantially parallel seat frame side members, each having a front end and a back end, The back end of each of the seat frame side members is connected to the longitudinally movable support member. The pivotable side connection members each have an upper end and a lower end. The upper end is pivotally connected to a seat frame side member at a point on the seat frame side member that is forward of the point on the seat frame side member where the seat frame side member is connected to the longitudinally movable support member. The lower end is pivotally connected to a base frame side member at a point on the base frame side member that is forward of the longitudinal retaining slot. The drive member is attached to the longitudinally movable support member and is capable of moving the longitudinally movable support member forward and backward.

대표청구항 ▼

[ What is claimed is:] [1.] A wheelchair seat tilt apparatus for tilting the seat frame of a wheelchair, the wheelchair comprising a base frame having base frame side members, the seat frame comprising a rear end and seat frame side members, the seat frame side members each having a front end and a

[ What is claimed is:] [1.] A wheelchair seat tilt apparatus for tilting the seat frame of a wheelchair, the wheelchair comprising a base frame having base frame side members, the seat frame comprising a rear end and seat frame side members, the seat frame side members each having a front end and a rear end, said wheelchair seat tilt apparatus comprising:a longitudinal retaining slot positioned in each base frame side member; anda longitudinally movable support member having opposing ends connected to said longitudinal retaining slots to form a longitudinally moveable connection, the rear end of the seat frame being connected to said longitudinally movable support member;pivotable side connection members each having an upper end and a lower end; each said upper end being pivotally connected to one of the seat frame side members at a point on the seat frame side members that is forward of said longitudinally movable support member; each said lower end being pivotally connected to one of the base frame side members at a point on the base frame side members that is forward of said longitudinal retaining slot; andat least one drive member attached to said longitudinally movable support member, said drive member being capable of moving said longitudinally movable support member forward and rearward.