In a trailer coupling comprising a cross member which is mountable on a rear region of a vehicle body, a pivot bearing unit arranged on the cross member, by means of which a ball neck carrying a coupling ball is pivotally mounted about a pivot axis between a working position and a rest position, and a contact unit arranged on the ball neck as well as a cable harness guided from the contact unit to a vehicle-mounted cross member and provided for connecting to a vehicle electrical supply system, it is provided that a transition portion of the cable harness which runs in a movable manner relative to the ball neck and relative to the pivot bearing unit from the ball neck to an attachment point connected fixedly to the cross member forms at least one loop which extends over an end face of the pivot bearing unit extending transversely to the pivot axis and which varies in size when transferring from the working position to the rest position or vice versa.

A universal hitch system includes a vehicle that has a frame and the frame has a front end. A hitch is removably coupled to the frame and the hitch is positioned on the front end. The hitch may have an implement removably coupled thereto. Thus, the vehicle may tow the implement. The hitch comprises a central member and a pair of end members. The central member has an adjustable width such that the central member accommodates a variety of frame widths. Each of the end members is removably coupled to the central member. Each of the end members is removably coupled to the frame.

A universal hitch system includes a vehicle that has a frame and the frame has a front end. A hitch is removably coupled to the frame and the hitch is positioned on the front end. The hitch may have an implement removably coupled thereto. Thus, the vehicle may tow the implement. The hitch comprises a central member and a pair of end members. The central member has an adjustable width such that the central member accommodates a variety of frame widths. Each of the end members is removably coupled to the central member. Each of the end members is removably coupled to the frame.

A constructive arrangement in mechanical coupling device applied in vehicles for tow traction is described comprising a square tubular structure (10) arranged horizontally provided in its ends by through-holes (11) receiving the fastening fitting structures (20) next to the vehicle chassis, said square tubular structure (10) showing in the central portion a set of fastening through-holes (12) of a “T”-shaped structure (30) enabling to fit an end cap (40) in a sinuous shape, describing technical improvements by reducing the number of parts, simplifying the constructive process and fast coupling system between the bracket and the end cap, facilitating the use, manufacture, installation, and maintenance of the equipment.

A constructive arrangement in mechanical coupling device applied in vehicles for tow traction is described comprising a square tubular structure (10) arranged horizontally provided in its ends by through-holes (11) receiving the fastening fitting structures (20) next to the vehicle chassis, said square tubular structure (10) showing in the central portion a set of fastening through-holes (12) of a “T”-shaped structure (30) enabling to fit an end cap (40) in a sinuous shape, describing technical improvements by reducing the number of parts, simplifying the constructive process and fast coupling system between the bracket and the end cap, facilitating the use, manufacture, installation, and maintenance of the equipment.

A drawbar and hitch receiver movement eliminating system has three main embodiments, each very similar and functioning with the same operational characteristics though they vary slightly in structural characteristics. Each embodiment has a means for the drawbar to push outwardly against the face of the receiver to eliminate the typical movement of the drawbar within the receiver caused by the standard clearances between the two, thereby considerably reducing the amplified swaying movement of the trailer that is caused by the small movements of the drawbar within the receiver.

The present invention discloses a trailer lock including a lock bar and a cylinder connected with the lock bar, wherein the cylinder includes an outer casing, a plug casing mounted at a front end of the outer casing and a plug provided in a middle of the plug casing, and further includes a bolt casing fixed in the outer casing and a cam accommodated in the bolt casing and connected with the plug, a telescopic core is provided in the cam, telescopic bolts for fixing the lock bar are provided at two sides of the bolt casing, the bolt has a front end connected with a rear end of the cam, and the lock bar has a front end provided with a press head having an annular neck where the bolt is clamped. The trailer lock designed in this way is convenient to use.

A quick hitch attachment device for coupling the attachment element of a truck bed type system to a quick hitch. The attachment device includes a mounting member tube, a ball hitch assembly and two or more coupling members adapted to mount a mounting member to the quick hitch. The ball hitch assembly includes a stem configured to be slidably received in the tube.

A quick hitch attachment device for coupling the attachment element of a truck bed type system to a quick hitch. The attachment device includes a mounting member tube, a ball hitch assembly and two or more coupling members adapted to mount a mounting member to the quick hitch. The ball hitch assembly includes a stem configured to be slidably received in the tube.

A mountable hitch frame assembly for three-wheeled vehicle that secures to the rear portion of an existing three-wheeled vehicle frame to position a hitch receiver assembly rearwardly projected overtop a rear swing arm assembly of the existing three-wheeled vehicle whereby objects and accouterments are mountable securely in tow and force and inertia exerted when towing objects and accouterments is distributable directly into the existing three-wheeled vehicle frame.