Chair having a flexible support member

A support member for a seat assembly, comprising:

• a plurality of arms, each of the arms including a horizontal portion, an upright portion, and a transition portion that extends curvilinearly upward from the horizontal portion to join the horizontal portion with the upright portion,
• wherein each of the arms extends to a distal end, the distal end configured to be secured to a frame of a seat assembly at an attachment location of the frame,
• wherein each of the arms extends rearward from the distal end in a series of convergences and divergences away from a central longitudinal plane of the support member, and
• wherein the distal ends of the arms extend laterally beyond a maximum amplitude of the convergences and divergences.

A method of assembling a seating unit, comprising the steps of:

• providing a backrest, a seat, a frame, and a support member comprising a plurality of arms, each of the arms including a horizontal portion, an upright portion, and a transition portion that extends curvilinearly upward from the horizontal portion to the upright portion;
• coupling a distal end of the horizontal portion of each of the arms to the frame at an attachment location;
• and
• coupling the upright portion of the support member with a rear side of the backrest,
• wherein each of the arms extends rearward from the distal end in a series of convergences and divergences away from a central longitudinal plane of the support member, and
• wherein the distal ends of the arms extend laterally beyond a maximum amplitude of the convergences and divergences.