Drive unit

Abstract

The invention relates to a drive unit (100), with a bearing device (50) for a drive motor (1) which interacts with a gearing element (13) via a drive shaft (2) which is supported at multiple points, with a first bearing element (3) which is arranged on that side of the drive motor (1) which is opposite the gearing element (13), a second bearing element (4) which is arranged between the drive motor (1) and the gearing element (13), and a third bearing element (20; 20a to 20h) which is arranged on that side of the gearing element (13) which faces away from the drive motor (1), wherein the third bearing element (20; 20a to 20h) is arranged movably in a direction perpendicular to the longitudinal axis (21) of the drive shaft (2), and wherein the third bearing element (20; 20a to 20h) is accommodated in a receptacle (38; 38a; 66) of a gearbox (10).

Description

technical field

[0001] The invention relates to a drive unit according to the preamble of claim 1 . Background technique

[0002] Such a drive unit is known from DE 10 2010 064 295 A1 of the applicant. Known drive units are components of convenience drives in motor vehicles, such as, for example, window regulator drives, sliding sunroof drives, seat adjustment drives. In particular known drive units have a first and a second bearing element on both sides of the drive motor for bearing the drive shaft. The drive shaft interacts with a counter-tooth of a drive wheel designed as a spur gear with a worm gear. On the side of the transmission wheel facing away from the drive motor, a third bearing element is arranged for absorbing or supporting forces acting transversely to the longitudinal axis of the drive shaft, which force causes the offset of the drive shaft described above. For this purpose, the known drive unit or its third bearing element has a section which surrounds ...

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