Chairs and seats – Having detachably interfitting parts or components; i.e.,... – Interfitted back and back frame
Patent
1994-06-17
1996-09-17
Cuomo, Peter M.
Chairs and seats
Having detachably interfitting parts or components; i.e.,...
Interfitted back and back frame
297DIG4, A47C 742
Patent
active
055561683
ABSTRACT:
A wheelchair back assembly suitable for detachable mounting to the back-supporting posts of a wheelchair. The back assembly includes a relatively rigid shell member carrying post-engaging hooks and a plurality of mounting units formed to be mounted on the wheelchair posts. The mounting units are further formed to slidably receive and automatically releasably lock a pair of the post-engaging hooks on the shell member to the posts against unintentional removal of the back assembly from the wheelchair during normal use of the wheelchair. The mounting units are also formed for single-handed automatic unlocking and release of the pair of hooks from the mounting units and posts upon rotation of the shell member forwardly over the wheelchair seat by an amount in excess of any displacement occurring during normal use of the wheelchair.
REFERENCES:
patent: 4564240 (1986-01-01), Thieme
patent: 4746168 (1988-03-01), Bracesco
patent: 5035467 (1991-07-01), Axelson et al.
patent: 5062677 (1991-11-01), Jay et al.
patent: 5127709 (1992-07-01), Rubinstein et al.
Denton Grant C.
Dinsmoor, III John C.
Johnson Michael W.
Van Everen Barry
Barfield Anthony D.
Cuomo Peter M.
Jay Medical Ltd.
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