Auxiliary device intended for addition to an article of seating furniture for raising and/or tilting thereof

摘要

The invention relates to an auxiliary device intended for addition to an article of seating furniture with a seat back, for instance a chair or settee. The auxiliary device includes a first frame for placing on the ground; a second frame disposed movably relative to the first frame; a support means present on the second frame for supporting an article of seating furniture; and drive means operative between the first frame and the second frame for displacing the second frame relative to those zones of the first frame with which this latter can support on the floor.