| 主权项 |
1. An adjusting device for automatically actuating a vehicle door of a motor vehicle, said device comprising:
a first tubular housing connected to a body of the vehicle; a second tubular housing connected to the vehicle door to be adjusted, wherein the second tubular housing is moved telescopically relative to the first tubular housing, and a spindle drive comprising:
a spindle, which can be rotated by an electric-motor drive arranged in the first tubular housing,a spindle nut threaded with the spindle, which when the spindle is rotated, is displaced along a longitudinal axis of the spindle, from a retracted rest position into an extended position,a push rod bearing the spindle nut, which extends in the direction of the longitudinal axis of the spindle, said push rod being coupled to the second tubular housing, anda tubular guide part enclosing the push rod and the spindle nut for guiding the spindle nut during its axial displacement, wherein said tubular guide part is provided with a shape complementary to a shape of the spindle nut to secure the spindle nut against rotation relative to said tubular guide part, and wherein said tubular guide part is produced by a plastic forming process on a suitable metal tube, and a cylindrical spring for assisting the spindle drive enclosing said tubular guide part, wherein said spring is guided by said tubular guide part, wherein spacer elements are ribs separate from and mounted on said tubular guide part between an outer circumference of said tubular guide part and said cylindrical spring to reduce friction between said cylindrical spring and said tubular guide part, and wherein said tubular guide part comprises, on an external surface, notches in which the ribs are fitted. |
