Chair seat tilt control

Details Chair seat tilt control Chair seat tilt control

1990-06-20

1991-05-28

Chen, Jose V.

Chairs and seats

Back movement resiliently opposed in operating position

Back and bottom adjust in a fixed relationship

297301, 297304, A47C 300

Patent

active

050187872

ABSTRACT:
A seat support mechanism for a tiltable chair having a rear tilt torque mechanism including interconnected torsion bars which are adjustable to vary the resilient restraining force which opposes rearward tilt of the seat when occupied, a pair of compression springs disposed between a seat support assembly and a base member to provide added resistance to rearward tilt, a link to limit rotation of the seat support assembly within predetermined limits and a release mechanism movable between a lock position, wherein rearward tilt is prohibited and a release position, wherein rearward tilt is permitted.

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