Chairs and seats – Having detachably interfitting parts or components; i.e.,... – Interfitted back and back frame
Patent
1990-05-18
1992-04-07
Aschenbrenner, Peter A.
Chairs and seats
Having detachably interfitting parts or components; i.e.,...
Interfitted back and back frame
297DIG9, 297284, 297460, A47C 700
Patent
active
051021951
ABSTRACT:
A seating system includes seat and back internal support frames disposed within respective foam-filled seat and back cushions which each have an outer fabric cover. The back assembly is provided with a pair of quick-release clip locks, while the seat assembly includes a plurality of support hooks in combination with mounting brackets and locking mechanisms to facilitate quick mounting and removal of the seat from a support frame such as a wheelchair base. The seat and back assemblies are coupled together in a pivoting manner by means of a handle assembly which allows the seat to be compactly folded and easily carried when removed from a support base. The back inner support frame includes upper and lower support subassemblies pivotally coupled by means of a hinge joint which allows for extension of the lumbar region when the upper support subassembly is moved rearwardly to a reclined position. The seat and back support surfaces are contoured for user comfort and support while a lower, aft portion of the back cusion is provided with a plurality of corrugations to facilitate its flexure. The internal support frame includes telescoping members to allow the internal frame to fit a range of user sizes while the hinge joint in the lower portion of the back assembly may: (1) be locked in a fixed orientation; (2) incorporate forward and aft stops to limit pivoting displacement of the upper back; or (3) have a selected neutral position to which the upper back is biased.
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Axelson Peter
Heinrich Michael
Lasko-Harvill Ann
Silverman Michael W.
Aschenbrenner Peter A.
Pin Dot Products
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