Chair back height-adjustment mechanism

Details Chair back height-adjustment mechanism Chair back height-adjustment mechanism

A - Human Necessities

47

C

A47C 7/40 (2006.01)

Patent

CA 2373699

A mechanism for adjusting the height of a chair back relative to the seat includes an arm that extends upwardly from the rear of the seat, and a carriage that is carried by the back and slidably mounted on the arm. A pinion inside the carriage engages a rack on the arm so that the pinion travels along the rack when the chair back is moved up and down on the arm. A pawl engages the pinion when the chair back is moved upwardly so as to allow incremental adjustment in the height of the back in the upward direction, while preventing downward movement of the back. When the back reaches the upper limit of its travel, an actuator spring is displaced downwardly, disengaging the pawl so that the back is free to slide on the arm. At the bottom of the limit of travel, the spring is displaced upwardly, re- engaging the pawl.

Affiliated with

Also associated with

Rating

Chair back height-adjustment mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Chair back height-adjustment mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chair back height-adjustment mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1820648