Clutch for a seat adjustment mechanism

摘要

A chair comprises a longitudinally extending seat; a support member for supporting the seat at an elevated height; a slide member fixedly mounted to one of the seat and the support member; a housing positioned between the seat and the support member and fixedly mounted to the other of the seat and the support member, the housing having a cavity for slidably receiving the slide member, the slide member mounted for longitudinal movement forward and rearward with respect to the housing; and, an adjustment member mounted in the housing and drivingly connected to the slide member, whereby movement of the adjustment member in a first direction causes the seat to move forwardly and movement of the adjustment member in the opposite direction causes the seat to move rearwardly.