Device for adjusting a seating furniture to the body weight and the centre of gravity of a person

摘要

The adjusting system for office chairs comprises an elastic ring (3) which surrounds a sleeve (4), in which the gas spring is mounted. The compression of the ring can be adjusted using a handle (9) which rotates a screw (7). This meshes with a second screw (8) which cooperates with a pressure plate (2) to compress the ring.