Patent ID: 6715784
Filing Date: 2004-04-06
Classification: A61G

Abstract:
The method of operating a wheelchair having tilt and recline functions, the wheelchair including a seat frame, a tilt actuator for tilting the seat frame, a back frame, a recline actuator for reclining the back frame, a sensor for determining the angle of recline, and a controller for controlling the tilt actuator and recline actuator, the method comprising:programming the controller with a plurality of preprogrammed sequences for moving the seat frame and the back frame during an unrecline procedure, the sequences including tilting the seat frame as an initial part of the unrecline sequence, wherein the sequences are a function of the initial angle of recline at the initiation of the recline sequence; determining an initial angle of recline at the initiation of a recline sequence; and unreclining the back frame according to one of the preprogrammed sequences in response to the determined initial angle of recline.