Patent ID: 8096615

Claim:
A back portion for a chair comprising: a lower portion arranged to extend across at least a major part of a lower region of an adult occupant's back and extending in a generally forward and upward direction; an intermediate portion above the lower portion and arranged to be positioned in a middle region of an adult occupant's back, and extending in a generally rearward and upward direction from the lower portion such that the intermediate portion and the lower portion together have a generally forwardly convex arrangement in side view; and an upper portion above the intermediate portion and extending generally vertically upward from the intermediate portion such that the intermediate portion and the upper portion together have a generally forwardly concave arrangement in side view, the upper portion arranged to extend across and support at least a major part of an upper region of an adult occupant's back including at least part of the occupant's shoulder region; wherein the upper portion of the back portion comprises an upper section and a remainder below the upper section, and wherein the relationship between the upper section and the remainder of the upper portion is such that the upper section folds rearwardly relative to the remainder of the upper portion from an upstanding position to a substantially horizontal position upon application of a suitable force to the upper section to reduce the overall vertical height of the back portion and to provide a substantially horizontal platform for resting the occupant's arm and wherein the upper section and the remainder of the upper portion have a resilient relationship such that the upper section resiliently returns from the substantially horizontal position to the upstanding position when the suitable force is removed from the upper section.