| 摘要 |
The invention relates to an adjusting device (3), or a spindle actuator unit, having a spindle drive (11), in particular for automatically actuating the vehicle door (2) of a motor vehicle (1), the spindle drive (11) comprising a spindle (13), which can be rotated by an electric-motor drive (100), and a spindle nut (15) which, when the spindle (13) is rotated, can be displaced along the longitudinal axis (16) of the spindle (13) in a guide (24), from a retracted rest position into an extended position. In order to provide an adjusting device (3) having a spindle drive (11) in which the said device can be constructed in a compact manner and can be produced and assembled cost-effectively and is also suitable for automatically actuating a vehicle door, in particular a tailgate (2), and in which it is possible, in the case of tailgate actuation, for the adjusting device (3) to be designed dimensionally in such a way that it can be arranged on the motor vehicle (1) in a similar manner to a gas spring used for opening the tailgate (2), the invention proposes a spindle drive (11) having a one-piece a tubular guide part (26) for guiding the spindle nut (15) which encloses the spindle nut (15) laterally. The lateral wall (25) of the guide part (26) is provided internally with a guide contour (24) which extends in the axial direction and in which guide lugs (23) of the spindle nut (15) engage. The tubular guide part (26) has at its front a peripheral, inwardly directed bead-shaped projection (27) which limits the displacement of the spindle nut (15). |
