Patent ID: 7597294

Claim:
A leveling system for household appliances comprising: appliance feet adapted to be arranged at the underside of a household appliance and adjustable in height at least partly by a traction element so as to make it possible to adjust the height of the household appliance and/or to adapt to unevenness in floors; wherein only two rear appliance feet have, in each instance, a cylindrical housing fastened to the underside of the household appliance; in each cylindrical housing there being arranged a piston which carries an appliance foot plate; said traction element joining the pistons of the appliance feet; said pistons each having a receptacle for height-adjustable arrangement of a shaft of the appliance foot plate; wherein the cylindrical housings are in a tractive connection with one another by a mechanical chain connection, belt connection or cable connection, the tractive connection having a force component in direction of a cylindrical housing axis; and wherein the mechanical chain connection, belt connection or cable connection and/or the cylinder or cylindrical housing can have an inhibiting or damping device which inhibits the passage of the chain, belt or cable or the displacement of the piston in the cylinder, wherein the friction device is formed by friction rings which are carried in ring grooves in the circumferential surface of the piston or, in that, alternatively, the mechanical connection is influenced by a friction device.