Height-adjustable chair back

摘要

An improved chair having a simplified height-adjustable back arrangement. The back arrangement is defined principally by a back shell provided with support sleeves adjacent opposite sides thereof. The support sleeves are slidably supported on respective uprights which project upwardly adjacent opposite sides of the chair seat. A manually-releasable latching mechanism cooperates between each support sleeve and its respective upright whereby a seated occupant, by using right and left hands, can simultaneously release both latching mechanisms and effect vertical slidable displacement of the back shell to adjust the position thereof.