Wheeled apparatus for use as walker and wheelchair
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 25, 1997
Grant Date -
N/A
app pub date -
Oct 21, 1993
filing date -
Oct 21, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Wheeled apparatus (10) is usable both as a wheeled walker and as a wheelchair. The wheeled apparatus (10) includes a foldable frame (12 or 258), first (16A) and second (16B) transversely spaced-apart wheels that are attached to the frame (12 or 258) with a negative camber angle, a third wheel (24A) that is longitudinally spaced from the first (16A) and a second (16B) wheels and that is attached to the frame (12 or 258), and a seat cushion (97) that is attached to the frame (12 or 258). When used as a wheeled walker, bi-directional seat (101, 124, 146, or 162) provides rearward facing seating (186) for resting, and when used as a wheelchair, the bi-directional seating means (101, 124, 146, or 162) provides forward facing seating (187). Centers (94) of handgrips (82A and 82B) are disposed longitudinally intermediate of the first and second wheels (16A and 16B) and the third wheel (24A) to minimize danger of the wheeled apparatus (10) tipping backwardly when used as a wheeled walker. A negative camber angle of the first and second wheels (16A and 16B) minimizes danger of the wheeled apparatus (10) tipping sideways, and an asymmetrical folding mechanism (15 or 256) reduces or removes the negative camber angle when the foldable frame (12 or 258) is folded, thereby minimizing the required size of a shipping container.
First Claim
Family
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Cited Art Landscape
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