Adjustable chair

Details Adjustable chair Adjustable chair

1991-01-31

1992-07-21

Dorner, Kenneth J.

Chairs and seats

Movable bottom

Bottom and back movable as a unit

297349, 248416, A47C 106

Patent

active

051317184

ABSTRACT:
A chair is provided with a seat which is rotatable and translatable with respect to its pedestal. Specifically, the chair includes a support pinion on top of the pedestal and a bearing surface mounted on the underside of the seat. The pinion has bearings on its upper surface which contact the bearing surface to support the seat. The seat also has a pair of racks mounted on it, the racks including recesses which interlock with complementary bosses on the support pinion to inhibit movement of the seat with respect to the pedestal. A pair of grips are attached, one to each rack, such that lifting either grip disengages both racks from the pinion allowing the seat to translate and rotate via the bearings on the support pinion and the bearing surface.

REFERENCES:
patent: 2312030 (1943-02-01), Cramer et al.
patent: 3542326 (1970-11-01), Reapsummer
patent: 3659895 (1970-05-01), Dresden

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