Patent ID: 8365630

Claim:
A transmission drive unit ( 10 ) for adjusting a movable part ( 58 ) in a motor vehicle, comprising: a drive assembly ( 42 ); a support tube ( 14 ); a drive element ( 18 ), wherein said drive element ( 18 ) is drivable by the drive assembly ( 42 ) and is rotatably supported in the support tube ( 14 ) via at least one end shield ( 28 ), the drive element ( 18 ) including a first axial stop ( 23 ), which bears against a first axial support surface ( 21 ) of the support tube ( 14 ), and the drive element ( 18 ) including a second axial stop ( 35 ), which rests against a second axial support surface ( 27 ) of the end shield ( 28 ), the end shield ( 28 ) being pressed against the second axial stop ( 35 ) of the drive element ( 18 ) via a material deformation of the support tube ( 14 ); a shaft ( 15 ) formed as a spindle ( 16 ) disposed in the support tube ( 14 ); a drive element ( 18 ) mounted on said shaft, wherein said drive element ( 18 ) is formed as a worm gear ( 19 ), wherein the material deformation ( 82 ) is formed by radially inwardly formed jacket regions ( 8 ) of the support tube ( 14 ), wherein the spindle ( 16 ) with the support tube forms a separate assembly independent of a transmission housing, and wherein the support tube ( 14 ) has a radial recess ( 50 ), wherein a driven element ( 40 ) engages in said radial recess ( 50 ) for transmission of torque.