Lumbar support regulating apparatus

Details Lumbar support regulating apparatus Lumbar support regulating apparatus

1976-01-30

1977-04-26

Mitchell, James C.

Chairs and seats

Bottom or back with means to alter contour

A47C 300

Patent

active

040197778

ABSTRACT:
A vehicle seat of the type having a seat back with a plurality of transverse serpentine springs therein is provided with a regulating apparatus for adjusting the firmness of the lowermost springs to adjust the firmness of the seat back in the lumbar region. A torsion spring is wrapped about a vertically extending post in the lower corner of the seat back with one end thereof operatively engaged with the seat spring adjacent the lower center portion of the seat back and the opposite end being secured to a nut threaded on a rotatable shaft so that rotation of the shaft will vary the force of the torsion spring on the seat spring.

REFERENCES:
patent: 3178221 (1965-04-01), Schwarz
patent: 3378299 (1968-04-01), Sandor

Affiliated with

Also associated with

Rating

Lumbar support regulating apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lumbar support regulating apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lumbar support regulating apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2084697