Chair tilt control mechanism

Details Chair tilt control mechanism Chair tilt control mechanism

1988-09-06

1989-10-03

Brown, Peter R.

Chairs and seats

Back movement resiliently opposed in operating position

Constantly oriented during up-and-down movement

248575, 297302, A47C 102

Patent

active

048712086

ABSTRACT:
A manually adjustable tilt control mechanism for a seat assembly arranged upon a frame support. The tilt control mechanism comprises a resilient block of material adjustably disposed between a pair of plates which are connected by a longitudinally adjustable bolt. Manual rotation of an adjustment knob effectuates compression or decompression of the resilient block between the upper and lower plates. The chain assembly being attached to the upper plate is infinitely tiltable in a full range from front to back and side to side, or any combination thereof, depending upon how much the resiliency of the block is permitted by its compression between the upper and lower plates.

REFERENCES:
patent: Re21857 (1941-07-01), Herold
patent: 2228719 (1941-01-01), Balear
patent: 3259431 (1966-07-01), Gale
patent: 3309137 (1967-03-01), Wiebe
patent: 3813069 (1974-05-01), Fletcher
patent: 3863982 (1975-02-01), Sandham

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