In a seat depth adjuster with an upholstery carrier plate (1), a base plate (2), and an electric drive (3), wherein the electric drive (3) cooperates with the upholstery carrier plate (1) via a spindle (4), the upholstery carrier plate (1) shall be made of...

The adjuster has a cartridge (2) comprising a twist external thread (9) that is in intervention with a twist inner groove (6) of an axial non-relocatable and torque-proof stored drive case (3). An output case (4) comprises another twist inner groove (7) th...