A towing device for attachment to a rear of a vehicle, the towing device comprising a) a pivot bearing unit, able to be connected to a vehicle part in a force-transmitting manner, which pivot bearing unit defines a vertically-running first pivot axis, b) a pivot bearing body, pivotably mounted in or on the pivot bearing unit about the first pivot axis, c) a ball rod, which is connected at a first end to the pivot bearing body and has at an opposite free second end a coupling ball, d) a drive device, by means of which the ball rod is able to be transferred from an operating position, in which the coupling ball is situated freely accessibly behind the rear of the vehicle, into a parking position, and vice versa, in which the coupling ball is situated concealed beneath the vehicle, wherein the ball rod, during the transferring from the operating position into the parking position and vice versa is movable rotatably relative to the pivot bearing unit about the first pivot axis, e) a sliding guide, by means of which the pivot bearing body, during the transferring from the operating position into the parking position and vice versa, is able to be moved translationally in vertical direction between an upper dead centre and a lower dead centre and also rotatably about the vertically aligned first pivot axis, wherein a sliding block is arranged on or in the pivot bearing unit or the pivot bearing body, and a sliding track interacting with the sliding block is arranged on or in the pivot bearing body or the pivot bearing unit, and f) at least one blocking device, by means of which, in the parking position and/or in the operating position, the pivot bearing body is able to be blocked relative to the pivot bearing unit, and the ball rod is able to be blocked relative to the pivot bearing body or the pivot bearing unit, wherein the ball rod is pivotable at its second end about a second pivot axis relative to the pivot bearing body, and the ball rod in the operating position is able to be blocked in the associated upper dead centre of the pivot bearing body with a stop surface, situated at its second end, directly on a stop surface of the pivot bearing unit, wherein the stop surface situated at the second end of the ball rod on the one hand, and the coupling ball on the other hand, are arranged on different sides of the second pivot axis, and characterized in that the drive device has a spindle drive, and the pivot bearing body, or an actuating body arranged therein or thereon, has an internal thread. a) a pivot bearing unit, able to be connected to a vehicle part in a force-transmitting manner, which pivot bearing unit defines a vertically-running first pivot axis, b) a pivot bearing body, pivotably mounted in or on the pivot bearing unit about the first pivot axis, c) a ball rod, which is connected at a first end to the pivot bearing body and has at an opposite free second end a coupling ball, d) a drive device, by means of which the ball rod is able to be transferred from an operating position, in which the coupling ball is situated freely accessibly behind the rear of the vehicle, into a parking position, and vice versa, in which the coupling ball is situated concealed beneath the vehicle, wherein the ball rod, during the transferring from the operating position into the parking position and vice versa is movable rotatably relative to the pivot bearing unit about the first pivot axis, e) a sliding guide, by means of which the pivot bearing body, during the transferring from the operating position into the parking position and vice versa, is able to be moved translationally in vertical direction between an upper dead centre and a lower dead centre and also rotatably about the vertically aligned first pivot axis, wherein a sliding block is arranged on or in the pivot bearing unit or the pivot bearing body, and a sliding track interacting with the sliding block is arranged on or in the pivot bearing body or the pivot bearing unit, and f) at least one blocking device, by means of which, in the parking position and/or in the operating position, the pivot bearing body is able to be blocked relative to the pivot bearing unit, and the ball rod is able to be blocked relative to the pivot bearing body or the pivot bearing unit, wherein the ball rod is pivotable at its second end about a second pivot axis relative to the pivot bearing body, and the ball rod in the operating position is able to be blocked in the associated upper dead centre of the pivot bearing body with a stop surface, situated at its second end, directly on a stop surface of the pivot bearing unit, wherein the stop surface situated at the second end of the ball rod on the one hand, and the coupling ball on the other hand, are arranged on different sides of the second pivot axis, and characterized in that the drive device has a spindle drive, and the pivot bearing body, or an actuating body arranged therein or thereon, has an internal thread.