Controlled deflection front lip for seating

Details Controlled deflection front lip for seating Controlled deflection front lip for seating

1993-05-26

1994-10-04

Aschenbrenner, Peter A.

Chairs and seats

Bottom or back

Directly connected bottom and back

29745238, 297DIG2, A47C 1024

Patent

active

053520220

ABSTRACT:
A structural support shell for a tilt back chair has a back portion, a seat portion, and a compressible flex area extending between the back and seat portions in an integrally molded, one piece unit. The chain has a base with a recline control and pivoting back support lever. The seat portion of the shell is connected to the base and the back portion of the shell is connected to the back support lever. The compressible flex area provides for an ergonomic chair design having an effective axis of rotation between the back portion and the seat portion, which is located above the seat portion, forward of the back portion and generally adjacent to the hip joints of a seated user.

REFERENCES:
patent: 3669496 (1972-06-01), Chisholm
patent: 4856846 (1989-08-01), Lohmeyer
patent: 4892356 (1990-01-01), Pittman et al.
patent: 4962964 (1990-10-01), Snodgrass
patent: 4981326 (1991-01-01), Heidmann

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