Motor-driven driving device for a tailgate of a vehicle comprises an electric drive motor connected to a drive spindle and a spindle nut without using a coupling and a brake unit which stops the rotation of the spindle and nut

摘要

Motor-driven driving device comprises an electric drive motor (8) connected to a drive spindle (5) and a spindle nut (6) without using a coupling so that the spindle and nut rotate on chassis parts (2, 3) and a brake unit (10) which stops the rotation of the spindle and nut. Preferred Features: The drive spindle and spindle nut have an incline of spindle thread (11) which allows manual adjustment of the spindle and nut when the brake unit is ventilated. The spindle thread has an inclination of 15-30[deg], preferably 20[deg]. The brake unit is a friction brake.