Apparatus for adjusting an armrest of an office chair

Details Apparatus for adjusting an armrest of an office chair Apparatus for adjusting an armrest of an office chair

2008-04-22

2008-04-22

Cranmer, Laurie K. (Department: 3636)

Chairs and seats

Armrest

C297S411360, C297S411370, C297S411380

Reexamination Certificate

active

11783905

ABSTRACT:
An angle-adjusting apparatus for an office chair includes: a supporting body with an bottom end attached to one side of a seat body of the office chair, a receiving cavity being defined by the front side of the upper portion of the supporting body, a plurality of notches being continuously formed in the front wall of the supporting body; a hollow socket mounted on the supporting body and liftable thereon; a locking shank having a pivot pin disposed at the top thereof and a protrusion at the bottom thereof for fitting into one of the notches, a spring being interposed between the front side of the locking shank and the wall of the hollow socket for providing the locking shank with an elastic pushing force in direction of the notches, a holding portion passing through the through hole of the hollow socket being extended forward from the pivot pin of the locking shank; and an armrest body transversely disposed at the top of the hollow socket and movably connected to the hollow socket so as to perform the ascending and descending action thereof.

REFERENCES:
patent: 5318347 (1994-06-01), Tseng
patent: 5368365 (1994-11-01), Feldberg
patent: 5382079 (1995-01-01), Wilson et al.
patent: 6062647 (2000-05-01), Mei
patent: 6398309 (2002-06-01), Chen
patent: 6896333 (2005-05-01), Matern et al.
patent: 7097254 (2006-08-01), Hobb et al.
patent: 7159947 (2007-01-01), Lee
patent: 7201449 (2007-04-01), Tsai

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