Abstract: A chair includes a back portion configured to engage a back of an occupant of the chair. The chair includes a frame and a conformable panel coupled to the frame. The conformable panel is configured to engage the back of the occupant of the chair, and the conformable panel includes a lumbar portion. A lumbar support mechanism is coupled to the frame. The lumbar support mechanism includes a base coupled to the frame and a lever pivotably coupled to the base. The lever comprises a shaft and a cam coupled to and being pivotable with the shaft relative to the base. A panel support translatably is coupled to the base and engaged with the cam. The lever is pivotable relative to the base to cause the cam to translate the panel support relative to the base and apply a force to the lumbar portion of the conformable panel.

Abstract: A chair assembly includes a chair base, a seating portion and a plurality of arm rest assemblies configured to transition between down and upright positions. In various embodiments, the arm rest assemblies are mounted to the chair assembly such that, when appropriately positioned, the chair assembly is adapted to facilitate unobstructed side access to and from a seating area SA.