Adjusting mechanism for an adjustable chair

Details Adjusting mechanism for an adjustable chair Adjusting mechanism for an adjustable chair

1989-07-14

1992-01-14

Brown, Peter R.

Chairs and seats

Back movement resiliently opposed in operating position

Back adjusts independent of seat

745015R, 74502, 745024, 297361, 297364, A47C 3026, F16C 110

Patent

active

050804340

ABSTRACT:
An adjusting mechanism for an adjustable chair includes a control mechanism, by means of which a control push rod of a spring mechanism is adjusted from a locking position to an unlocking position. In the unlocking position, the chair frame which comprises a seat carrier, a back rest carrier and a pedestal constituted by a pillar and a support part, can undergo a positional adjustment. The locking and unlocking positions are set with a single handle of an operating member which effects a displacement of two control bolts provided with meshing tooth systems, which makes the adjusting mechanism simpler and more advantageous to use.

REFERENCES:
patent: 2340830 (1944-02-01), Arens
patent: 4630866 (1986-12-01), McFarlane
patent: 4787673 (1988-11-01), Locher
patent: 4798100 (1989-01-01), Baumgarten

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