Seat assembly with lumbar support mechanism

Details Seat assembly with lumbar support mechanism Seat assembly with lumbar support mechanism

1992-11-09

1994-02-15

Brittain, James R.

Chairs and seats

Bottom or back with means to alter contour

Providing support for lower back region

2972841, A47C 300

Patent

active

052860876

ABSTRACT:
A mechanical lumbar support having an adjustment mechanism with a cam for effecting adjustment of the lumbar support member position. The cam is coupled to the lumbar support member through a linkage which enables the cam and actuating knob to be located at the optimum position for reaching and operating by a seat occupant, independent of the location of the lumbar support mechanism.

REFERENCES:
patent: 3378299 (1968-04-01), Sandor
patent: 3973797 (1976-08-01), Obermeier et al.
patent: 4162807 (1979-07-01), Yoshimura
patent: 4449751 (1984-05-01), Murphy et al.
patent: 4534592 (1985-08-01), Hattori
patent: 4564235 (1986-01-01), Hatsutta et al.
patent: 4565406 (1986-01-01), Suzuki
patent: 4725095 (1988-02-01), Benson et al.
patent: 4886316 (1989-12-01), Suzuyama et al.

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