Chairs and seats – Back movement resiliently opposed in operating position – Constantly oriented during up-and-down movement
Patent
1993-07-29
1994-12-27
Brown, Peter R.
Chairs and seats
Back movement resiliently opposed in operating position
Constantly oriented during up-and-down movement
297302, A47C 300
Patent
active
053759125
ABSTRACT:
A reclining chair including a support base, a chair having seat and back portions integrally formed, a lever arm fixed to and extending from a bottom and forward portion of the seat portion, a means for pivotally coupling the forward portion of the seat portion to the base portion such that the seat portion pivotally moves substantially about a pivoting axis passing through an expected vicinity of a pivoting axis of a knee joint of a person sitting in the reclining chair, a roller engaging with a surface of the lever arm, a mechanism for moving the roller along the surface of the lever arm and a coil spring pivotally coupled at one end to the support base and rotatably coupled to the roller at the other end.
REFERENCES:
patent: 4889384 (1989-12-01), Sulzer
patent: 5046780 (1991-09-01), Decker et al.
patent: 5160184 (1992-11-01), Faiks et al.
Burness Bruce
Stulik Edward L.
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