Patent ID: 7946651

Claim:
A mechanism for controlling the rearward movement caused by the user of a chair or armchair backrest, comprising control means for controlling the inclination of the backrest and spring means for biasing the backrest to a position of minimum inclination, said control means comprising: a) at least one stop block having a plurality of steps arranged in a plane which is vertically perpendicular to the plane of the backrest, so said steps face toward the backrest or in an opposite direction to said backrest; b) a lever being connected to said stop block for moving said stop block and allowing thereby the selection of a step of the stop block for setting a desired maximum inclination of the backrest; and c) a setting element being connected to the backrest and being movable along with the backrest for interfering with said selected step of the stop block in order to set said maximum inclination of the inclined backrest without locking it in said maximum inclination and allowing thereby the backrest to automatically return into the position of minimum inclination by said springs when the user's weight is no longer applied thereto.