Chairs and seats – Back movement resiliently opposed in operating position – Back and seat adjust simultaneously
Patent
1980-05-01
1983-06-28
Zugel, Francis K.
Chairs and seats
Back movement resiliently opposed in operating position
Back and seat adjust simultaneously
297304, 297322, 248561, A47C 1032
Patent
active
043902065
ABSTRACT:
The specification discloses a synchrotilt chair control in which a slide is provided between the front of the seat support and stationary control housing, which slide serves not only to make possible synchrotilt action between the back support and seat support, but also makes possible the incorporation of a seat adjustment assembly. The latter comprises a pivot bracket pivotally mounted on the slide and on the seat support, and an actuator for pivoting the pivot bracket. The pivotal mounting between the seat support and back support is also dual functional in that it supports a pivotally mounted lock plate for locking the control. A height adjustment actuator and hidden handle pretension adjustment bolt are also provided.
REFERENCES:
patent: 2321385 (1943-06-01), Herold
patent: 2471024 (1949-05-01), Cramer
patent: 2572444 (1951-10-01), Cardon
patent: 2956619 (1960-10-01), Scherer
patent: 2991125 (1961-07-01), Lie
patent: 3072436 (1963-01-01), Moore
patent: 4076308 (1978-02-01), Slabon
patent: 4214726 (1980-07-01), Karrip et al.
Beukema Duane M.
Faiks Frederick S.
Hozeski Kenneth W.
Knoblauch Jack R.
Pergler Charles C.
Steelcase Incorporated
Zugel Francis K.
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