A drawbar arrangement for a dolly vehicle, the drawbar arrangement comprising a control unit and an adjustable drawbar attached to the dolly vehicle, the adjustable drawbar comprising a front coupling element arranged to be adjusted vertically with respect to a ground plane by the control unit, wherein the control unit is arranged to determine a vertical coupling load associated with the front coupling element, and wherein the control unit is arranged to set a desired vertical coupling load associated with the front coupling element by vertically adjusting the front coupling element when coupled to a towing vehicle unit.

An improved trailer hitch is presented. The tractor trailer has a main trailer frame, the main trailer for hauling cargo. To help couple a trailer cab to the trailer frame a swivel box having a spring-loaded locking pin and a permanent hinge pin is coupled to a tongue that is used to couple the trailer cab and the trailer frame. The swivel box swivels or swings the tongue to a position to accommodate a misaligned trailer cab easing the coupling process.

A king pin adaptor is provided for allowing a king pin, intended to connect to a fifth wheel hitch, to be attachable to a ball hitch assembly. A hitch assembly is provided having a plurality of vertical and longitudinal positions for securing a ball member to allow for greater flexibility in attaching to various towed structures. The king pin adaptor and hitch assembly may be used alone or together as components of a towing system for towing a trailer with a king pin or ball mount.

A selectable and height-adjustable hitch apparatus for towing comprising an elongated shank received by a vehicle attached to an upper bracket with pentagonal opposing vertical support arms with pinholes for angular adjustment of the elongate shaft to the upper bracket. An upper tube integral with the upper bracket in telescopic relation to at least one lower or middle tube and adjustable in length by aligned pinholes. A lower bracket integral with a lower tube receiving a ball mount, wherein the ball mount is angularly and height adjustable via the tow-hitch apparatus.

A selectable and height-adjustable hitch apparatus for towing comprising an elongated shank received by a vehicle attached to an upper bracket with pentagonal opposing vertical support arms with pinholes for angular adjustment of the elongate shaft to the upper bracket. An upper tube integral with the upper bracket in telescopic relation to at least one lower or middle tube and adjustable in length by aligned pinholes. A lower bracket integral with a lower tube receiving a ball mount, wherein the ball mount is angularly and height adjustable via the tow-hitch apparatus.

The positionable towing hitch includes a first beam supporting a movable housing assembly and a second beam assembly movable in the housing. The first beam protrudes out of the housing for mounting to a hitch receiver of a vehicle. A first beam driver assembly is coupled to the first beam to selectively extend and retract the housing with respect to the first beam in a horizontal direction. A second beam driver assembly is coupled to a second beam to selectively raise and lower the second beam with respect to the housing in a vertical direction. A ball mount bracket is fixed to the second beam for mounting a ball mount thereon to move with the second beam. The movements of the housing and the second beam facilitate positioning of the ball mount for connection to a trailer to be hitched.

The positionable towing hitch includes a first beam supporting a movable housing assembly and a second beam assembly movable in the housing. The first beam protrudes out of the housing for mounting to a hitch receiver of a vehicle. A first beam driver assembly is coupled to the first beam to selectively extend and retract the housing with respect to the first beam in a horizontal direction. A second beam driver assembly is coupled to a second beam to selectively raise and lower the second beam with respect to the housing in a vertical direction. A ball mount bracket is fixed to the second beam for mounting a ball mount thereon to move with the second beam. The movements of the housing and the second beam facilitate positioning of the ball mount for connection to a trailer to be hitched.

A tow hitch assembly having a body for mounting the tow hitch assembly relative to an associated vehicle includes a first member rotatably mounted relative to the body and a second member slideably mounted relative to the first member, with the second member including a tow hitch. The tow hitch assembly includes a stowed position at which the first member is in a first rotational position relative to the body and the second member is in a first longitudinal position relative to the first member. Further, the tow hitch assembly includes a deployed position at which the first member is in a second rotational position relative to the body and the second member is in a second longitudinal position relative to the first member.

A tow hitch assembly having a body for mounting the tow hitch assembly relative to an associated vehicle includes a first member rotatably mounted relative to the body and a second member slideably mounted relative to the first member, with the second member including a tow hitch. The tow hitch assembly includes a stowed position at which the first member is in a first rotational position relative to the body and the second member is in a first longitudinal position relative to the first member. Further, the tow hitch assembly includes a deployed position at which the first member is in a second rotational position relative to the body and the second member is in a second longitudinal position relative to the first member.

Methods and systems for adjusting a trailer attached to a vehicle. The system includes a hitch of the vehicle located on a track along a rear end of the vehicle and configured to couple the vehicle to the trailer and move along the track. The system also includes one or more actuators coupled to the hitch and configured to move the hitch along the track. The system also includes an electronic control unit (ECU) configured to instruct the one or more actuators to move the hitch along the track.