Patent ID: 8613481

Claim:
A chair comprising: a back portion comprising: a back frame, the back frame comprising a lower portion supported from another part of the chair and adapted to extend across at least a major part of a lower region of a seated adult occupant's back, wherein the lower portion of the back frame comprises a transversely extending top member, a transversely extending bottom member, and at least two spaced apart members interconnecting the top and bottom members, an upper portion adapted to extend across at least a major part of an upper region of the occupant's back, wherein the upper portion of the back frame comprises a transversely extending top member, a transversely extending bottom member, and at least two spaced apart generally vertical members interconnecting the top and bottom members, and a relatively narrow interconnecting region that is centrally disposed in a horizontal width direction of the back frame and that extends between and is connected to the transversely extending bottom member of the upper portion and to the transversely extending top member of the lower portion to connect a lower part of the upper portion to an upper part of the lower portion and provide a vertical spacing between the upper portion and lower portion, wherein the relatively narrow interconnecting region is resiliently flexible to provide a flexing movement in a rearward direction of the upper portion relative to the lower portion and relative to said another part of the chair; and a cover operatively connected to the back frame to provide a supporting surface for the back of the seated occupant, wherein the cover is connected to at least the transversely extending top member of the upper portion of the back frame and to at least the transversely extending bottom member of the lower portion of the back frame, and wherein a portion of the cover is suspended between the upper portion of the back frame and the lower portion of the back frame across the relatively narrow interconnecting region of the back frame, with the suspended portion being spaced in front of the relatively narrow interconnecting region of the back frame.