Chairs and seats – Back movement resiliently opposed in operating position – Constantly oriented during up-and-down movement
Patent
1991-03-08
1993-03-09
Brown, Peter R.
Chairs and seats
Back movement resiliently opposed in operating position
Constantly oriented during up-and-down movement
297301, A47C 1032
Patent
active
051921146
ABSTRACT:
A chair comprises a base, a column on the base, a housing on the column and supporting a chair seat and back, a height adjustment means mounted to and between the base and the housing for longitudinal adjustment to alter relative height of the seat. The chair also includes a tilt adjustment means comprising a chair back support means pivotally mounted to the housing for movement between upright and reclining positions, means for biasing the chair back support means in the upright position, tension control means movably engageable with the biasing means for adjusting tension thereof and tilt actuating means movably mounted to the housing for actuating movement of the tension control means. The tilt actuating means comprises an elongated rod rotatably mounted to the housing. The height actuating means comprises an elongated tube rotatably mounted to the housing in telescopic relationship to the actuating rod.
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Allen Lynne M.
Hollington Geoffrey A.
Kuyper Mark E.
Nagelkirk Robert A.
Brown Peter R.
Herman Miller Inc.
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