A - Human Necessities – 61 – G
Patent
A - Human Necessities
61
G
280/34, 155/14.2
A61G 5/02 (2006.01)
Patent
CA 1304103
ABSTRACT OF THE DISCLOSURE The present invention relates to manually operable pro- pulsion unit for detachable attachment to a wheelchair in which the wheels are arranged to be driven by circular hand rails fixedly attached to, concentric with and laterally spaced outside the wheels of the wheelchair which allows the occupant of the wheelchair to propel the wheelchair by means of backwards and forwards motion of a hand lever in addition to the direct drive by means of the hand rail. In particular the invention provides a linkage means detachably attached to each hand rail on the wheelchair and connecting the hand rail with a hand lever pivot- ally mounted on base member means adapted to be detachably att- ached transversely at the frame of the wheelchair such that back and forwards motion of the hand lever in a vertical plane drives its associated wheel of the wheelchair via the attached hand rail, the base member means comprising a pair of base clamps adapted to be clamped on the frame of the wheelchair at trans- versely opposite sides thereof, each of the base clamps having a horizontally extending portion for pivotally mounting the hand lever.
583156
Marks & Clerk
Wedemeyer Helmut M.r.
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