Chairs and seats – Collapsible chair; i.e. – relatively folding bottom – back,... – Collapsed components form self-contained carrying case
Patent
1982-05-24
1985-07-09
Lyddane, William E.
Chairs and seats
Collapsible chair; i.e., relatively folding bottom, back,...
Collapsed components form self-contained carrying case
297 16, 297 29, 297 51, 297346, 297347, 297DIG4, A47C 420, A61G 500
Patent
active
045278296
ABSTRACT:
The present wheel chair, especially for invalids, is foldable in a vertical irection rather than horizontally to transform the chair into a very compact package. For this purpose all foldable components of the chair are equipped with journals having journal axes extending perpendicularly to a vertical central plane of symmetry of the chair. Further, the seat is vertically liftable and also horizontally guided on guide tracks (18) extending in parallel to the plane of symmetry of the chair. The guide tracks (18) are movable back and forth on guide rail sections (17) which are pivoted to the top of the support structure (4) of the chair. Hydraulic piston cylinder drives are connected to all chair components which are movable under a loaded condition with a person sitting in the chair. The chair seat is also divided so that the chair may be moved directly over a toilet seat, for example. By raising the chair seat sufficiently above the arm rests in the aisle of an aircraft or bus, a person may be transported directly to a passenger seat with the aid of the present chair.
REFERENCES:
patent: 2429763 (1947-10-01), Lindabury
patent: 2545336 (1951-03-01), Binder
patent: 2849051 (1958-08-01), Streeter, III
patent: 3029106 (1962-04-01), McGuire
patent: 3261031 (1966-07-01), Gates
patent: 3596982 (1971-08-01), Grams
patent: 3889963 (1975-06-01), Brattgard
patent: 4229039 (1980-10-01), Day
patent: 4266305 (1981-05-01), Kavaloski et al.
patent: 4343482 (1982-08-01), Wegner
Fanslau Udo
Grosche Norbert
Binder Mark W.
Fasse W. G.
Kane, Jr. D. H.
Lyddane William E.
Messerschmitt-Boelkow-Blohm Gesellschaft mit beschraenkter Haftu
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