Patent ID: 7635135

Claim:
A wheelchair having wheel track adjustability, the wheelchair including a frame, a seat positioned within the frame, at least one steerable front wheel and two drive wheels, each mounted on an axle to opposite sides of the frame, the wheelchair comprising: a bracket pivotally mounted to the frame; a support plate coupled to and positioned against the bracket such that pivoting of the bracket causes rotation of the support plate, the support plate having a hole and a varying thickness around the circumference of the hole, the support plate configured to mount one of the wheel axles to the frame and to set a desired camber angle of that wheel axle and drive wheel; and a fitting coupled to the support plate for removably mounting the wheel axle to the frame, wherein the support plate is rotatable over a pre-determined range when the fitting is coupled to the support plate so as to change the angle of the wheel axle relative to the frame and thereby adjust the wheel track of the wheelchair while maintaining the desired camber angle.