Mannesmann Vdo Ag

Mark Schiebelhuth

Gerhard Pfanzer

Alfred Wipfler

An adjusting device serves for moving a moveable part into various positions, for example a side ventilator window of a motor vehicle. A servomotor ( ) drives a spindle drive ( ) which comprises essentially a spindle ( ) having an external thread ( ) and a sleeve part ( ) which surrounds the spindle and has a corresponding internal thread ( ). When acted upon by an external force, axial play in the region of the spindle drive ( ) may lead to noise being produced; in order to avoid the noise, one ( ) of the two threads comprises separate threaded parts ( ), and an elastically prestressable element ( ) is provided with the aid of which an axial force can be produced between the two threaded parts ( ). The axial force causes the two threaded parts ( ) each to bear against opposite flanges of the external thread ( ), so that the axial thread play is eliminated.

Growing community of inventors

Frankfurt-am-Main, Germany

Mark Schiebelhuth