Dr. Ing. H.c. F. Porsche Aktiengesellschaft

Ing. H.c.f. Porsche Ag

Andreas Piede

Eberhard Palmer

Peter Reutlinger

A trailer towing device can be swivelled from an operative position into an inoperative position and back. During an adjusting from the operative position into the inoperative position, a socket for an electrical plug device of a trailer is continuously taken along. The coupling neck of the trailer towing device as well as the socket are covered in the vehicle in their inoperative position.

Trailer towing device

In order to prevent a rear bumper from penetrating in the event of a crash so far into the vehicle body that a rear flap can no longer be operated, a so-called supporting element is arranged within the bumper in the area of the longitudinal center plane of the vehicle and/or at the ends, which supporting element constructs the bumper in a rigid manner in this area.

Bumper for a motor vehicle and method of making same

A towing device has a ball neck equipped with a ball head that can be moved by a spindle adjusting element back and forth from an operative position into an inoperative position. The ball neck is arranged in a rotary block which is swivellably held in a carrier part. For supporting the ball neck in all possible loading directions, supporting surfaces, a torsion stop as well as a detent pawl are provided so that a movement of the coupling neck is avoided when forces act upon it, and a precise position is ensured in the operative position.

Towing device

A trailer coupling for motor vehicles able to be moved from a working position to a resting position and the reverse. To increase safety, a motion of the trailer coupling is allowed only if the velocity of the motor vehicle is &#x3c;=5 Km/h, if the rear window or tailgate is open and if no trailer is fastened on the coupling. The motion is stopped if the torque of the drive motor exceeds a specifiable reference value.

Growing community of inventors

Illingen, Germany

Andreas Piede