Chair Assembly with Upholstery Covering

摘要

A chair back assembly includes a back shell member including laterally extending top, bottom and side portions cooperating to define an open space therebetween, where a portion of the back shell member is located in a lumbar region, a cover having a first surface and a second surface opposite the first surface, wherein the cover covers at least a portion of the open space, and a back frame assembly operably supporting the back shell member and movable between upright and reclined positions, wherein the back frame assembly causes the back shell to flex in a fore-to-aft direction as the back frame assembly is moved between the upright and reclined positions independent of an external force being exerted on the back shell member, and where the lumbar portion of the back shell member remains spaced from the back frame as the back frame is moved between the upright and reclined positions.

主权项

1. A chair back assembly, comprising:
a back shell member including a laterally extending top portion, a laterally extending bottom portion, and a pair of longitudinally extending side portions extending between the top portion and the bottom portion and cooperating therewith to define an open space therebetween, where a portion of the back shell member is located in a lumbar region of a seated user; a cover having a first surface adapted to support a seated user and a second surface opposite the first surface, wherein the cover is positioned with respect to the back shell member to cover at least a portion of the open space; and a back frame assembly operably supporting the back shell member and movable between an upright position and a reclined position, wherein the back frame assembly causes the back shell to flex in a fore-to-aft direction as the back frame assembly is moved between the upright and reclined positions independent of an external force being exerted on the back shell member, and where the lumbar portion of the back shell member remains spaced from the back frame as the back frame is moved between the upright and reclined positions.