Chairs and seats – Movable bottom – Movable independently of back
Patent
1990-04-16
1991-11-05
Aschenbrenner, Peter A.
Chairs and seats
Movable bottom
Movable independently of back
297284, 297330, 297411, A47C 102
Patent
active
050626760
ABSTRACT:
An adjustable chair includes a base having a pair of spaced, parallel, forwardly extending frame members and a vertically extending frame connected to, and projecting upwardly from, the base, the vertically extending frame having a pair of spaced, generally parallel uprights. The chair includes a seat, leg rest and knee rest that are connected to the base, and which are both vertically and pivotally adjustably connected to the base. The chair includes lower, middle and upper back rests, as well as a head rest that is disposed above the upper back rest. The back rests and the head rest are mounted for pivotal movement about laterally extending axes. The chair also includes a pair of vertically adjustable arm rests. The vertically extending frame is mounted for pivotal movement about a laterally extending horizontal axis located near the rear edge of the seat. The present invention enables the support portions of the chair to be adjusted to accommodate a person of any size or shape. The chair is particularly useful for individuals experiencing chronic back pain.
REFERENCES:
patent: 3206249 (1965-09-01), Gateley
patent: 4240663 (1980-12-01), Locher
patent: 4585272 (1986-04-01), Ballarini
patent: 4616874 (1986-10-01), Pietsch et al.
patent: 4641884 (1987-02-01), Miyashita et al.
patent: 4650247 (1987-03-01), Berg et al.
patent: 4691964 (1987-09-01), Morgan
patent: 4695682 (1987-09-01), Winogrocki
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