Patent ID: 8944454
Filing Date: 2015-02-03
Classification: A47C,A61G

Abstract:
1. A wheelchair comprising: a main frame a plurality of wheels adapted to support the main frame relative to a supporting surface; a seat frame for supporting an occupant; and an arc plate adapted to support the seat frame relative to the main frame, the arc plate defining a first track and a second track positioned above a substantial portion of the first track, the first and second tracks serve as rolling or sliding surfaces that allow the seat frame to tilt relative to the main frame, wherein the first and second tracks 1) have a curvature, and 2) are non-concentric with respect to each other, such that, the first and second tracks define a tilt path that limits shifting of the center of gravity of the occupant when the occupant is supported by the seat frame and the seat frame is tilted along the tilt path.