Chairs and seats – Back movement resiliently opposed in operating position – Back and seat adjust simultaneously
Patent
1997-10-07
1999-08-31
Nelson, Jr., Milton
Chairs and seats
Back movement resiliently opposed in operating position
Back and seat adjust simultaneously
297343, A47C 300
Patent
active
059443820
ABSTRACT:
Adjustable seating has a frame, a seat bottom mounted on the frame so as to slide forwardly and rearwardly, and a seat back mounted on the frame so as to slide upwardly and downwardly and also to tilt rearwardly from a resiliently restrained upright position. A lumbar back is mounted on the frame between the seat bottom and seat back so as to move generally in coordination with movements of the seat bottom and seat back. The lumbar back provides good support for the lumbar portion of the body of a person seated in the seating in all postures and all positions of the seat bottom and seat back.
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Krueger product catalog, "Vertebra vs. the backache syndrome," 1978.
Center for Design Research and Development N.V.
Jr. Milton Nelson
LandOfFree
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