Chairs and seats – Movable back – Tiltable
Patent
1990-02-02
1991-10-01
Brown, Peter R.
Chairs and seats
Movable back
Tiltable
297306, 297355, A47C 1024
Patent
active
050527533
ABSTRACT:
An adjustable sitting device has a mechanism to alter the mutual angle between the seat and the back rest, the seat and/or back rest being turnable about a first imaginary axis which is essentially coincident with a second imaginary pivoting axis of the hips of the chair user, wherein the back rest comprises frame members extending downward from the back rest and into a respective curved portion. The seat comprises at least a pair of runners attached to a seat frame, and a support is located underneath the seat frame, the seat frame having an opening therein to provide access from above to the support with the support being interconnected from below to a chair subframe, the frame members slidably engaging a set of slide shoes located at the rear of the seat frame, and the runners slidably engaging sets of slide shoes located on the support. A control mechanism extends between a front region of at least one of the frame members and a front region of the seat frame to control and selectively set the distance between the regions.
REFERENCES:
patent: 3284135 (1966-11-01), Hiramatsu
patent: 4372608 (1983-02-01), Hotta
patent: 4386805 (1983-06-01), Boisset
patent: 4408800 (1983-10-01), Knapp
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