Chair arm assembly

A chair assembly, comprising;

• an arm support assembly having an upper end and a lower end;
• an arm rest assembly adapted to support the arm of a seated user thereon and supported on the upper end of the arm support assembly;
• an arm support structure pivotably supporting the arm support assembly for pivoting movement about a substantially vertical axis, such that the upper end of the arm support assembly is pivotable about the substantially vertical axis between a first position and second position located laterally outward from the first position;
• and
• a seat support structure including a seat support surface configured to support a seated user thereon, wherein the seat support surface includes a longitudinal axis;
• wherein the upper end of the arm support assembly moves greater than or equal to about 22° outwardly from an axis parallel with the longitudinal axis of the seat support surface, and wherein the upper end of the arm support assembly moves greater than or equal to about 17° inwardly from the axis parallel with the longitudinal axis of the seat support surface.

A chair assembly, comprising:

• an arm support structure;
• an arm rest assembly adapted to support the arm of a seated user thereon;
• an arm support assembly having a lower end supported by the arm support structure, and an upper end supporting the arm rest assembly thereon, wherein the arm support assembly is adjustable between a vertically raised position and a vertically lowered position;
• and
• a locking assembly, comprising:
• a first locking link having at least one of a first surface and a plurality of teeth;
• a second locking link having the other of the first surface and the plurality of the teeth, and movable between a locked position, wherein the first surface engages at least one of the plurality of teeth to prevent adjustment of the arm support assembly between the raised and lowered positions, and an unlocked position, wherein the first surface is spaced from the plurality of teeth, thereby allowing the arm support assembly to be adjusted between the raised and lowered positions;
• an actuator link operably coupled with the first locking link and adapted to move between a first position, wherein the first locking link is moved by the actuator link to the locked position, and a second position, wherein the first locking link is moved by the actuator link to the unlocked position;
• and
• an actuator member operably coupled with the actuator link, wherein at least a portion of the actuator member may be actuated by a seated user, thereby allowing the user to move the actuator link between the first and second positions.