Importance

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Abstract

A desk chair that is adjustable to accommodate a variety of different body sizes and shapes, and particularly to accommodate changes in body size and shape of children over several years between young childhood and adulthood. The chair includes a seat, a back support, and a pair of arm rests on opposite sides of the seat. The chair has adjustment mechanisms that allow the chair to be adjusted in several different ways, including the depth of the seat, the heights of the back support and the arm rests, and the positions of the arm rests in a substantially lateral plane relative to the seat and the back support. The chair also has a mechanism for adjusting the height of the seat over a range which is especially adapted for growing children, which results from positioning a height control adjustment mechanism substantially entirely within a support base for the chair, extending downwardly between the legs. In addition, the chair is designed to tilt about four pivot points under the control of a tilt control mechanism, with the four pivot points forming the vertexes of a substantial parallelogram, so that as the back support tilts the seat tilts to a lesser extent. The tilt control mechanism includes a self-centering crank arm for adjusting the resistance of the mechanism to tilting.

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First Claim