Patent ID: 6450577
Filing Date: 2002-09-17
Classification: A47C

Abstract:
An office chair comprising:a seat assembly; a back assembly which projects upwardly from a rear edge of said seat assembly; and a tilt control which connects said seat assembly and said back assembly together, said tilt control including a control body which supports said seat assembly and an upright which is pivotally connected to said control body and supports said back assembly, said upright being pivotable about a sidewardly-extending horizontal pivot axis so as to be pivotable forwardly from a normal upright position to a forwardly tilted position and rearwardly to a rearwardly tilted position, said tilt control including a lock mechanism which cooperates with said upright and said control body to selectively lockout or permit forward and rearward tilting, said lock mechanism including an actuator which is movable along an elongate path through first, second and third operative positions wherein both forward and rearward tilting is locked out when the actuator is one of the first to third operative positions, only one of forward and rearward tilting is locked out when the actuator is in another of the first to third operative positions and both forward and rearward tilting is permitted when the actuator is in still another of the first to third operative positions.