Chair back with lumbar and pelvic supports

Details Chair back with lumbar and pelvic supports Chair back with lumbar and pelvic supports

2006-11-10

2008-03-25

Barfield, Anthony D. (Department: 3636)

Chairs and seats

Bottom or back with means to alter contour

Having a plurality of adjacent relatively adjustable sections

C297S284400, C297S284500

Reexamination Certificate

active

07347495

ABSTRACT:
An office chair is provided having a back assembly which is configured to provide supplemental support to the back of a chair occupant in addition to the support provided by the primary support surface of the chair back. The chair back includes a lumbar support unit having a lumbar support pad wherein asymmetric support is provided to the left and right halves of the lumbar pad. As such, the asymmetric support loads are independently adjustable to more comfortably support a chair occupant. The chair back also includes a pelvic support pad which is disposed vertically adjacent to the lumbar support.

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