US 11,805,914 B2
Back support for a chair
Peter J. Beyer, Hamilton, MI (US); Kyle R. Fleet, Byron Center, MI (US); Michael E. Schasel, Zeeland, MI (US); Todd A. Kercher, Holland, MI (US); Brian S. Gessler, Hudsonville, MI (US); and Teresa A. Bellingar, Holland, MI (US)
Assigned to Haworth, Inc., Holland, MI (US)
Filed by Haworth, Inc., Holland, MI (US)
Filed on Jun. 23, 2020, as Appl. No. 16/909,155.
Application 16/909,155 is a division of application No. 16/220,181, filed on Dec. 14, 2018, granted, now 10,729,250.
Application 16/220,181 is a division of application No. 15/042,723, filed on Feb. 12, 2016, granted, now 10,182,657, issued on Jan. 22, 2019.
Prior Publication US 2020/0315354 A1, Oct. 8, 2020
Int. Cl. A47C 7/46 (2006.01); A47C 7/40 (2006.01); B68G 5/00 (2006.01); B29C 45/00 (2006.01); B29L 31/00 (2006.01)
CPC A47C 7/462 (2013.01) [A47C 7/40 (2013.01); B68G 5/00 (2013.01); B29C 45/00 (2013.01); B29L 2031/771 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A back support for a chair, comprising:
a flexible back support surface having a front user facing side and a rear side opposite the front side, the flexible back support surface having a vertical extent that includes a thoracic region, a lumbar region and a pelvic region; and
a lumbar mechanism positioned adjacent the rear side of the flexible back support surface, the lumbar mechanism including a flexible lumbar pad having a first portion in contact with the rear side of the flexible back support surface in at least the lumbar region, wherein the flexible lumbar pad is adjustable to engage multiple positions along the vertical extent of the rear side of the flexible back support surface by rolling the flexible lumbar pad on the rear side of the flexible back support surface such that a second portion of the flexible lumbar pad contacts the rear side of the flexible back support surface, while the first portion remains fixed in contact with the same portion of the flexible back support surface.