Robert Boschgmbh

Andreas Lienig

Hans-Juergen Oberle

Mario Huesges

Peter Mueller

Franz Schwendemann

Willi Schmidt

Fabian Louvel

Hans-Jürgen Oberle

A gear drive unit (), for a seat adjuster or a power-assisted steering system, comprised of a spindle (), on which a drive gear () that drives the spindle () is provided, a drive assembly (), which drives the drive gear () by means of a driven element () and at least one device () on which the drive assembly () is at least flanged-mounted, and which operationally couples at least the driven element () and the drive gear (). The invention provides that at least one additional support (') is provided in which the drive gear () is mounted, and this support is fastened to the base part () and supports the device ().

Gear/drive unit

A threaded spindle adjusting drive, e.g., a vehicle seat adjusting drive, includes a threaded spindle, a drive gear operably connected to the threaded spindle, and a bearing system for supporting axial and radial forces from the threaded spindle and/or the drive gear on a jacketed pipe. The bearing system has an axial bearing element abutting on at least one radially inwardly directed crimp of the jacketed pipe for supporting axial forces and a radial bearing ring abutting on the inner circumference of the jacketed pipe for supporting radial forces.

Threaded spindle adjusting drive

A transmission drive unit () for adjusting a movable part () in a motor vehicle includes a drive element (), which is capable of being driven by a drive assembly (), and which is rotatably supported in a support tube () via at least one end shield (). The drive element () has a first axial stop (), which bears against a first axial support surface () of the support tube (), and a second axial stop (), which rests against a second axial support surface () of the end shield (). The end shield () is pressed against the second axial stop () of the drive element () via a material deformation of the support tube ().

Transmission drive unit with a zero axial backlash bearing fastening, in particular for adjusting a movable part in a motor vehicle

A transmission drive unit for adjusting a movable part in a motor vehicle has a support tube, a drive wheel, which is drivable using a drive assembly rotatably supported on the support tube and located on a spindle installed first in the support tube as a separate component and received in the bearing receptacle; a customer-specific receiving module, which subsequently and separately is attached to the support tube and includes a receptacle for a fastening device on the motor vehicle or the part to be adjusted, and the material of the receiving module has a higher strength than the material of the support tube.

Transmission drive unit with a receiving module for adjusting a movable part in a motor vehicle

A spindle drive (), in particular for adjusting a movable part () in a motor vehicle, includes a drive assembly (), which drives a drive wheel () supported on a spindle (). The drive wheel () is rotatably supported in a support tube () that includes a receptacle () for a fastening device () for diverting crash forces. A guide tube () that accommodates the spindle () and overlaps axially with the support tube () is located coaxially with spindle ().

Spindle drive, in particular for adjusting a movable part in a motor vehicle, and a method for manufacturing this spindle drive

The invention relates to a gear drive unit (), in particular to adjust moveable parts in a motor vehicle, with a gear housing () and a shaft () positioned therein along a longitudinal axis (), which shaft is supported on the housing () via an axial stopping face () on a counter stopping face (), wherein at least one of the stopping faces () is inclined perpendicular to the longitudinal axis () against a plane () by an angle of inclination () in order to generate an axial force, and a component (), which cooperates with at least one of the stopping faces (), is arranged in a displaceable manner perpendicular to the longitudinal axis (). In doing so, the coefficient of friction between the at least one stopping face () and the component () is greater than the tangent of the angle of inclination ().

Growing community of inventors

Buehl, Germany

Andreas Lienig