Abstract: A sensor device for a towing vehicle coupling or forming part of a towing vehicle coupling with which a trailer vehicle can be coupled to a towing vehicle wherein the towing vehicle coupling has a coupling element for releasably coupling a coupling mating element, which can be secured to the towing vehicle and the trailer vehicle, and when coupled together can rotate relative to one another about at least one joint rotational axis, forming a joint, where the sensor device has a follower mounted on a bearing body such that it can rotate relative to the coupling element about a follower rotational axis; can be rotatably carried about the follower rotational axis, by the rotation of the coupling mating element about the at least one joint rotational axis, to sense a rotation of the coupling mating element relative to the coupling element about the at least one joint rotational axis, and the sensor device has at least one sensor for sensing a respective rotational position of the follower relative to the bearing

Abstract: A sensor device for a towing vehicle coupling or as a component of a towing vehicle coupling, with which a trailer vehicle, in particular a semi-trailer, can be coupled to a towing vehicle wherein the towing vehicle coupling has a coupling element for detachably coupling a coupling counter element, which are/can be secured to the towing vehicle and the trailer vehicle, and in the coupled state forming a joint, where they can rotate relative to one another about at least one joint rotational axis, wherein the sensor device has a follower, which is mounted on a bearing body where it can rotate relative to the coupling element about a follower rotational axis, which can rotate about the follower rotational axis by rotationally following the coupling counter element in a rotation about the at least one joint rotational axis, and which is for detecting a rotation of the coupling counter element relative to the coupling element about the at least one joint rotational axis, and wherein the sensor device has at least

Abstract: The invention relates to a trailer coupling for a motor vehicle (11), in particular a passenger car, comprising a retainer (20), which is arranged on or can be fastened to the motor vehicle (11), and a retainer part (30), which can be detachably fastened to the retainer (20) and which has a retainer insertion projection (33) for inserting into a retainer insertion receptacle (24) of the retainer (20), wherein the retainer part (30) has an integrated locking device (70) having at least one locking body (71) and has an actuation body (73), which is supported in the retainer part (30) so as to be movable in order to actuate the at least one locking body (71) into a locking position (R), wherein the at least one locking body (71) interlockingly engages in a locking receptacle (72) on the retainer (20) in the locking position (R) and is moved out of the locking receptacle (72) in a detaching position (L), the retainer insertion projection (33) of the retainer part (30) therefore being interlockingly locked in the

Abstract: A trailer coupling for a motor vehicle including a coupling arm for attaching a trailer or for carrying a load carrier, and including at least one sensor for detecting a deformation, caused by a load engaged on the bearing element, of a bearing element of the trailer coupling, wherein at least one recess is provided on the bearing element for the at least one sensor, wherein the at least one sensor is provided for measuring a spacing of reference surfaces of the at least one recess. The reference surfaces move toward one another or away from one another during a deformation of the bearing element and extend in a transverse manner in relation to a support section of the bearing element which deforms during stress applied by the load and/or are free from a flow of forces through the support section of the bearing element.

Abstract: A trailer coupling for a motor vehicle for attaching a trailer or for supporting a load carrier, including a coupling arm provided for coupling a coupling piece of the trailer or load carrier, and at least one sensor arranged on the coupling arm for detecting a deformation of the coupling arm caused by a load on the coupling arm. For the trailer coupling, at least one recess is provided on an outer circumferential contour of the coupling arm, in which or on which recess the at least one sensor is arranged or held.

Abstract: A trailer coupling for a towing vehicle, having a coupling carrier, which includes, in particular, a coupling arm and at whose free end a coupling body, in particular, a coupling ball is arranged for connecting a trailer, and which coupling carrier is fixedly or movably arranged on a mount which is or can be attached to the towing vehicle, and having a sensor arrangement which has at least one sensor and has the purpose of sensing a traction force and/or thrust force which can be caused by a traction load acting on the coupling element during a traction operation of the trailer and of outputting a force signal representing the traction force and/or thrust force, and having an evaluation device for determining a trailer mass value of the trailer on the basis of the force signal.

Abstract: A trailer coupling for a motor vehicle including a coupling arm for attaching a trailer or for carrying a load carrier, and including at least one sensor for detecting a deformation, caused by a load engaged on the bearing element, of a bearing element of the trailer coupling wherein at least one recess is provided on the bearing element for the at least one sensor, wherein the at least one sensor is provided for measuring a spacing of reference surfaces of the at least one recess. The reference surfaces move toward one another or away from one another during a deformation of the bearing element and extend in a transverse manner in relation to a support section of the bearing element which deforms during stress applied by the load and/or are free from a flow of forces through the support section of the bearing element.

Abstract: A trailer coupling for a motor vehicle for attaching a trailer or for supporting a load carrier, including a coupling arm provided for coupling a coupling piece of the trailer or load carrier, and at least one sensor arranged on the coupling arm for detecting a deformation of the coupling arm caused by a load on the coupling arm. For the trailer coupling, at least one recess is provided on an outer circumferential contour of the coupling arm, in which or on which recess the at least one sensor is arranged or held.

Abstract: A trailer coupling for a motor vehicle includes a base holder which can be or is securely mounted on the vehicle and further includes a coupling arm at the free end of which a coupling element is arranged for coupling a trailer and which protrudes towards the rear from the motor vehicle in a position of use, wherein the coupling arm can be releasably secured to the base holder or is mounted movably between the position of use and a position of non-use in which it is moved towards the motor vehicle. In the trailer coupling, it is provided that, for connection to the base holder, the coupling arm includes a holder part which can be secured to the base holder by means of a base holder fixing device and a coupling part on which the coupling element is located.

Abstract: An adapter for a trailer socket of a trailer coupling for coupling a trailer, wherein the adapter comprises a base body and a primary contact arrangement mounted thereon and comprising a plurality of primary contacts corresponding to a European or German standard, in particular seven primary contacts according to DIN 1724 or thirteen primary contacts according to ISO 11446, for establishing an electric connection to corresponding socket contacts of the trailer socket. The adapter comprises a secondary contact arrangement mounted on the base body with secondary contacts according to a US American standard, so that a trailer plug corresponding to the US American standard can be electrically connected to the secondary contact arrangement for the power supply of a trailer, the secondary contact arrangement and the primary contact arrangement being connected to one another via an electric connection arrangement.

Abstract: A trailer coupling for a motor vehicle includes a base holder which can be or is securely mounted on the vehicle and further includes a coupling arm at the free end of which a coupling element is arranged for coupling a trailer and which protrudes towards the rear from the motor vehicle in a position of use, wherein the coupling arm can be releasably secured to the base holder or is mounted movably between the position of use and a position of non-use in which it is moved towards the motor vehicle. In the trailer coupling, it is provided that, for connection to the base holder, the coupling arm includes a holder part which can be secured to the base holder by means of a base holder fixing device and a coupling part on which the coupling element is located.

Abstract: A retractile trailer hitch has a tube shaft fixed on a motor-vehicle frame and an arm having a tubular inner end pivotal on the shaft and an outer ball end. The arm is limitedly axially displaceable on the shaft between locked and unlocked positions. Formations on the frame and on the inner end angularly arrest the arm in its end positions in the locked position of the inner end. The formations are unengageable with each other in the unlocked position of the inner end. A bolt is axially displaceable inside the shaft between a holding position and a freeing position. Balls inside the inner end are coupled to the bolt for axially displacing the arm into the locked position on displacement of the bolt into the holding position and for displacing the arm axially into the unlocked position on displacement of the bolt into the freeing position.

Abstract: A retractile trailer hitch has a tube shaft fixed on a motor-vehicle frame and an arm having a tubular inner end pivotal on the shaft and an outer ball end. The arm is limitedly axially displaceable on the shaft between locked and unlocked positions. Formations on the frame and on the inner end angularly arrest the arm in its end positions in the locked position of the inner end. The formations are unengageable with each other in the unlocked position of the inner end. A bolt is axially displaceable inside the shaft between a holding position and a freeing position. Balls inside the inner end are coupled to the bolt for axially displacing the arm into the locked position on displacement of the bolt into the holding position and for displacing the arm axially into the unlocked position on displacement of the bolt into the freeing position.