Apparatus for simultaneously folding seat back and armrest

Details Apparatus for simultaneously folding seat back and armrest Apparatus for simultaneously folding seat back and armrest

2007-12-25

2007-12-25

McPartlin, Sarah B. (Department: 3636)

Chairs and seats

Armrest

Connected to back and bottom

C297S411320, C297S360000

Reexamination Certificate

active

11307179

ABSTRACT:
An apparatus for simultaneously folding seat back and armrest, which comprises a seat assembly, a seat back assembly, a pivoting assembly, two armrests and an adjusting assembly. The seat assembly is mounted on a base of a chair. The seat back assembly is pivoted to the seat assembly. The crank is pivoted in the seat assembly in such a manner that both ends of the crank protrude out of the seat assembly, and the protruded ends are swingable along with the rotation of the crank. The two armrests are arranged at both sides of the seat assembly and the seat back assembly; an end of each of the armrests is pivoted to the crank, and another end of the armrests is pivoted to the seat back assembly. The adjusting assembly is disposed between the seat assembly and the seat back assembly for controlling the motion of the seat back assembly and the armrests.

REFERENCES:
patent: 1291413 (1919-01-01), Cluff
patent: 4252371 (1981-02-01), Lehnen
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patent: 5630643 (1997-05-01), Scholten et al.
patent: 6739669 (2004-05-01), Etzioni et al.
patent: 6761397 (2004-07-01), Tseng
patent: 7147286 (2006-12-01), Cesaroni et al.

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