Chairs and seats – Movable bottom – Bottom and back movable as a unit
Patent
1991-03-08
1993-09-14
Brown, Peter R.
Chairs and seats
Movable bottom
Bottom and back movable as a unit
248161, A47C 330
Patent
active
052442535
ABSTRACT:
A chair having a base, a seat support member, a seat, and a height adjustable mechanism is disclosed. The height adjustable mechanism includes a vertically extendable and compressible gas spring having a pin located at the upper end of the spring. The pin operates a valve integrated in the gas spring so that the effective length of the spring is adjustable when the pin is depressed. An elongated actuating rod is mounted to the seat support member transversely of the gas spring. A lever is pivotably mounted to the seat support member between the actuating rod and the pin. The lever is pivotable to and between a first position where the pin is depressed for adjustment of the height of the seat and a second position where the pin is not depressed. Upon rotation of the actuating rod, the pin is depressed and thereby vertically moves the seat relative to the base.
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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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