Method programming and operating a wheelchair having tilt and recline functions
First Claim
1. 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.
6 Assignments
0 Petitions
Accused Products
Abstract
A method of operating a wheelchair during an un-recline process involves 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 is provided. A controller for controlling the tilt actuator and recline actuator is also provided. The controller is provided with a plurality of preprogrammed sequences for moving the seat frame and the back frame during an unrecline procedure. The sequences include 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. An initial angle of recline at the initiation of a recline sequence is determined, and the back frame is unreclined according to one of the preprogrammed sequences in response to the determined initial angle of recline.
134 Citations
4 Claims
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1. 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:
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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. - View Dependent Claims (2)
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3. 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:
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programming the controller with a preprogrammed unrecline sequence for moving the seat frame and the back frame during an unrecline procedure, the unrecline sequence including tilting the seat frame as an initial part of the unrecline sequence;
programming the controller with a threshold recline angle, above which the unrecline procedure follows the preprogrammed unrecline sequence, and below which the unrecline procedure involves unreclining the back frame without tilting the seat frame;
determining an initial angle of recline at the initiation of unrecline sequences during operation of the wheelchair;
comparing the initial angle of recline with the threshold angle; and
unreclining the back frame in response to the comparison of the initiation angle with the threshold angle. - View Dependent Claims (4)
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Specification