Push button adjuster for chair backrest

Details Push button adjuster for chair backrest Push button adjuster for chair backrest

1978-05-18

1980-09-09

Lyddane, William E.

Chairs and seats

Movable back

297410, 403324, 403325, A47C 100

Patent

active

042214300

ABSTRACT:
A low cost, highly convenient, and non-complicated push button adjuster for chair backrests eliminates bulky and unsightly protruding levers, hand wheels and other external operators. A simple push button normally flush with the rear face of a backrest is depressed to shift a connected locking pin out of a detent slot in a backrest support bar so that the backrest is released for height adjustment. The push button and locking pin are spring-biased to the active locking position.

REFERENCES:
patent: 3295888 (1967-01-01), Poland
patent: 3326602 (1967-06-01), Moore et al.
patent: 3526430 (1970-09-01), Eldon

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