Patent ID: 7597647

Claim:
An adjustment device adjustably connected to a seat component comprising: a rotary drive; and a gearbox in a driven relationship with the rotary drive, wherein the gearbox comprises a housing, a sunwheel, an annular gear, a planetary gear and a planetary gear carrier, wherein the sunwheel is driven by the rotary drive; the planetary gear carrier rotates concentrically with the sunwheel; and the planetary gear consists essentially of a single set of teeth having a single radius, the single set of teeth of the planetary gear meshing with a set of teeth of the sunwheel and a set of teeth of the annular gear; and a bowden cable having a casing and a traction cable slidable through inside of said casing, said traction cable being in operative communication with the planetary gear carrier, wherein the traction cable actuates the seat component; wherein said housing has a through-hole for leading said traction cable therethrough, and wherein an end of said casing of said bowden cable abuts on a periphery of said through-hole; and wherein said annular gear comprises an internally toothed portion and a non-internally-toothed portion, wherein the set of teeth of said annular gear are formed within said internally toothed portion, and wherein a portion of an end region of said non-internally-toothed portion of said annular gear comprises a damping abutment.