Patent ID: 7458637
Filing Date: 2008-12-02
Classification: A47C,A61G,B60N

Abstract:
1. A back construction for a seating unit, comprising: a back frame; and a back support including top and bottom connections operably supporting the back support on the back frame, the back support having a flexible lumbar region between the top and bottom connections, the bottom connection directing movement of a lower edge of the back support along a predetermined path as the lumbar region is flexed from a forwardly-protruding shape toward a more planar shape while providing continuous lumbar support to a seated user during changes between the shapes, the bottom connection being positioned rearward of and configured to not project in front of a front surface of sides of the lower edge of the back support, wherein the bottom connection comprises a linkage including at least one pair of links each with a first end pivoted to the back frame and with a second end pivoted to the back support.