Articulated reclining backrest with lumbar support

Details Articulated reclining backrest with lumbar support Articulated reclining backrest with lumbar support

1997-06-30

1999-09-28

Cuomo, Peter M.

Chairs and seats

Back movement resiliently opposed in operating position

Back adjusts independent of seat

2972844, 2974523, B60N 222

Patent

active

059575336

ABSTRACT:
The present invention provides a backrest for a seat or chair having an upper section; a lower section; and a pivotal movement mechanism fixed to the lower section which pivotably connects the upper section with the lower section and includes spring device for allowing the upper section to pivot to a reclined position when force is applied to the upper section and for urging the upper section into an upright position when force is not applied to the upper section, the pivotal movement mechanism including two vertical members which extend vertically from the lower section, the two vertical members being pivotably connected to an interior portion of the upper section located between said two vertical members.

REFERENCES:
patent: 4333683 (1982-06-01), Ambasz
patent: 4469374 (1984-09-01), Kashihara et al.
patent: 4564235 (1986-01-01), Hatsutta et al.
patent: 4671569 (1987-06-01), Kazaoka et al.
patent: 4678230 (1987-07-01), Winkle
patent: 5423593 (1995-06-01), Nagashima
patent: 5649739 (1997-07-01), Zapf

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