SPINDLE DRIVE FOR AN ADJUSTING ELEMENT OF A MOTOR VEHICLE

摘要

Disclosed herein is a spindle drive for an adjustable element of a motor vehicle, wherein a drive unit and a spindle/spindle nut mechanism arranged downstream of the drive unit in the drivetrain, for generating linear drive movements are provided, wherein the spindle/spindle nut mechanism has a spindle and a spindle nut meshing with the spindle, wherein the spindle drive has two drive portions which run telescopically inside one another during a motorized adjustment, wherein the spindle is assigned to one drive portion and the spindle nut is assigned to the other drive portion wherein the two drive portions are coupled in a torque-transmitting manner to provide an antitwist safeguard.

主权项

1. A spindle drive for an adjustable element of a motor vehicle, wherein a drive unit and a spindle/spindle nut mechanism arranged downstream of the drive unit in the drivetrain, for generating linear drive movements are provided, wherein the spindle/spindle nut mechanism has a spindle and a spindle nut meshing with the spindle,
wherein the spindle drive has two drive portions which run telescopically inside one another during a motorized adjustment, wherein the spindle is assigned to one drive portion and the spindle nut is assigned to the other drive portion wherein the two drive portions are coupled in a torque-transmitting manner to provide an antitwist safeguard, wherein during the motorized adjustment, the spindle nut runs along the spindle axis within a guide tube of the spindle-side drive portion and is safeguarded against twisting with respect to the guide tube, in that, as seen in cross section, at least one shaped portion within the guide tube is or can be brought into torque-transmitting engagement with an assigned mating shaped portion in the region of the spindle nut for antitwist safeguarding and the two mutually assigned shaped portions interact for this torque transmission in a wedge-like manner with the formation of a radial force component.