CHAIR HAVING ADJUSTABLE LUMBAR SUPPORT

摘要

A back construction for a chair (20) includes a back shell (21) having a plurality of horizontal bands (22) defining a flexible lumbar section (23), with the back shell including non-parallel guides (28) defined along its edges. A vertically adjustable lumbar support (24) includes a panel body (25) located at the flexible lumbar section, a bent wire member (26) that engages the panel body and that is stretchable laterally, and opposing handles (27) attached to ends of the bent wire member that engage the non-parallel guides (28). The opposing handles slidingly follow the guides and are movable between a first position where the bent wire member is flexed to a first width dimension, and a second position where the bent wire member is flexed to a second width dimension different than the first width dimension. Slots (28, 30) in the panel body retain the bent wire member to the panel body, but permit the bent wire member to be stretched horizontally during vertical adjustment of the lumbar support.