THE FOLLOWING SPECIFICATION DESCRIBES A CHAIR CONTROL UTILIZING AN ANNULAR RUBBER SPRING BONDED AT ITS EXTERNAL SURFACE TO A SHELL HELD BY THE POST HORN AND BONDED AT ITS INTERNAL SURFACE TO A TUBE, WHICH IS LONGITUDINALLY DISPLACED IN RESPONSE TO RATIONAL MOVEMENT OF THE OCCUPANT SUPPORT MEMBER. A CHAIR CONTROL IS ALSO DESCRIBED IN WHICH FORCES CREATED IN RESPONSE TO PIVOTING MOVEMENT

OF THE CHAIR OCCUPANT ARE APPLIED IN A DIRECTION CORRESPONDING TO THE POST AXIS AND ARE RESISTED BY A SPRING ARRANGED ALONG THAT AXIS. A CHAIR CONTROL IS ALSO DISCLOSED FOR ENABLING MOVEMENT OF THE CHAIR BACK INDEPENDENTLY OF THE SEAT BY USE OF AN ANNULAR RUBBER SPRING PLACED UNDER SHEAR STRESS.