US 6,981,743 B2
Chair with adjustable lumbar support
Tom Edwards, Spring Lake, Mich. (US); and Errol Pearsons, Grand Haven, Mich. (US)
Assigned to HNI Technologies Inc., Muscatine, Iowa (US)
Filed on Jun. 10, 2004, as Appl. No. 10/865,193.
Application 10/865193 is a continuation in part of application No. 29/194354, filed on Nov. 21, 2003.
Prior Publication US 2005/0121958 A1, Jun. 09, 2005
Int. Cl. A47C 7/46 (2006.01)
U.S. Cl. 297—284.7 7 Claims
OG exemplary drawing
 
1. A chair comprising a seat, a back rest, and a lumbar support, the lumbar support comprising a lumbar support pad and a means for adjusting the position thereof, said means for adjusting the position of said lumbar support pad comprising
a vertical adjustment means,
a stationary support means mounted to said back rest, and
a tension adjustment means, said vertical adjustment means being received in a receiving means integral with said back rest,
said stationary support means and said tension adjustment means being disposed rearwardly of said back rest;
wherein said tension adjustment means engages said vertical adjustment means through said stationary support means, and a portion of said lumbar support pad is engaged between said vertical adjustment means and said stationary support means, such that when said tension adjustment means is adjusted to increase tension on said vertical adjustment means, said vertical adjustment means urges said lumbar support pad into more secure engagement with said stationary support means, such that said lumbar pad cannot be moved with respect to said vertical adjustment means.