A weight distribution system used with a hitch on a vehicle and a trailer, the weight distribution system comprising a moment bar with a forward end attached to the hitch so as to pivot about a generally vertical axis, the moment bar extending rearwardly along a center longitudinal plane of the trailer toward a rearward portion, the moment bar configured to exert a forward moment on the vehicle in response to an upward force on the rearward portion; a bracket attached to a trailer frame element, wherein the bracket is above the first rearward portion and further from the center longitudinal plane of the trailer than the rearward portion; and a tension member combined with a tension mechanism so as to increase and decrease a tensile force between the bracket and the rearward portion, to thereby increase and decrease the upward force on the rearward portion whereby sway of the trailer is reduced by biasing the system back to the centerline when the vehicle and trailer are out of alignment is disclosed.

A weight distribution hitch system comprising a vehicle attachment member comprising a forward end configured to rigidly attach to a vehicle, and a rearward end extending rearwardly toward a trailer, the rearward end comprising an upper portion comprising a trailer attachment member configured to pivotally attach to a coupler of the trailer, and a lower portion configured to receive a moment bar; a moment bar having a modulus of elasticity, the moment bar comprising a moment bar forward end attached to the lower portion of the rearward end of the vehicle attachment member so as to prevent rotation about a horizontal axis, and a moment bar rearward end; a tension member comprising a top end configured to be supported by a frame member of the trailer, and a bottom end configured to support the rearward end of the moment bar; and wherein, when the tension member is in tension, it imposes an upward force on the moment bar rearward end, which, in turn, imposes a forward moment on the vehicle; and wherein the modulus of elasticity of the moment bar is low enough wherein the modulus of elasticity of the moment bar is low enough to reduce displacement of the vehicle when the vehicle and trailer are not parallel is disclosed.

A weight distribution hitch system comprising a vehicle attachment member comprising a forward end configured to rigidly attach to a vehicle, and a rearward end extending rearwardly toward a trailer, the rearward end comprising an upper portion comprising a trailer attachment member configured to pivotally attach to a coupler of the trailer, and a lower portion configured to receive a moment bar; a moment bar comprising a moment bar forward end attached to the lower portion of the rearward end of the vehicle attachment member so as to prevent rotation about a horizontal axis, and a moment bar rearward end; a tension member comprising a top end configured to be supported by a frame member of the trailer, and a bottom end configured to support the rearward end of the moment bar, and a spring, configured to bias the moment bar rearward end toward the frame member of the trailer; and wherein, when the tension member is in tension, it imposes an upward force on the moment bar rearward end, which, in turn, imposes a forward moment on the vehicle is disclosed.

A trailer hitch assembly includes a shank, coupleable to a receiver carried by a towing vehicle. A ball attachment bracket is attachable to the shank. A ball assembly is receivable within the ball attachment bracket, the ball assembly capable of mating with a trailer coupler carried by a trailer to be towed. A distribution block is attachable to one or both the ball attachment bracket or the shank. The distribution block has arm socket attachments to allow coupling of a pair of arm sockets to the distribution block, each of the arm sockets capable of receiving one of a pair of spring arms attachable to the trailer to be towed. The distribution block is removable from each of the ball attachment bracket and the shank while the ball attachment bracket remains operably coupled to the shank for use as a standard ball hitch assembly.

A weight distribution hitch system comprising a vehicle attachment member comprising a forward end configured to rigidly attach to a vehicle, and a rearward end extending rearwardly toward a trailer, the rearward end comprising an upper portion comprising a trailer attachment member configured to pivotally attach to a coupler of the trailer, and a lower portion configured to receive a moment bar; a moment bar having a modulus of elasticity, the moment bar comprising a moment bar forward end attached to the lower portion of the rearward end of the vehicle attachment member so as to prevent rotation about a horizontal axis, and a moment bar rearward end; a tension member comprising a top end configured to be supported by a frame member of the trailer, and a bottom end configured to support the rearward end of the moment bar; wherein, when the tension member is in tension, it imposes an upward force on the moment bar rearward end, which, in turn, imposes a forward moment on the vehicle; and wherein the modulus of elasticity is low enough that an adjustment range for the moment bar is greater than 0.5 inches is disclosed.

The present invention comprises a weight distribution tag trailer, having at least some of the following features: (a) a frame assembly, including beams and cross beams and side axle beams, (b) an axle coupled to the frame assembly, (c) shims for optional position between an axle assembly and the side axle beams to allow adjustment of load and balance (d) at least two wheels rotatably mounted to the axle, wherein at least one beam includes an end complementarily sized to be received by a vehicle receiver hitch assembly, and at least one other beam includes a clamp for coupling the beam to a cross frame of the vehicle receiver hitch.

A hitch system comprising a hitch shaft with a forward end configured to rigidly attach to a tow vehicle and a rearward end extending rearwardly toward a trailer frame; a head unit pivotally attached to the rearward end of the hitch shaft at a first pivot point having an upper portion and a lower portion, comprising a hitch ball on the upper portion of the head unit positioned out of vertical alignment with the first pivot point creating a second pivot point between the hitch ball and a trailer attached thereto; and a slot on the lower portion of the head unit, the slot having portions in vertical alignment with the first pivot point and the second pivot point; a first moment arm with a distal end configured for slidable attachment to a first bracket on the trailer frame and a forked proximal end comprising a first tine pivotally connected to the lower portion of the head unit; and a second tine having a knob in a sliding connection with the slot; and a second moment arm with a distal end configured for slidable attachment to a second bracket on the trailer frame and a proximal end pivotally attached to the head unit; wherein the first moment arm is at a first angle relative to the member of trailer and the second moment arm is at a second angle relative to the trailer; wherein the first angle is greater than the second angle; and whereby the effective pivot point of the system is moved forward to reduce sway is disclosed.

A weight distribution hitch system comprising a vehicle attachment member comprising a forward end configured to rigidly attach to a vehicle, and a rearward end extending rearwardly toward a trailer, the rearward end comprising an upper portion comprising a trailer attachment member configured to pivotally attach to a coupler of the trailer, and a lower portion configured to receive a moment bar; a moment bar comprising a moment bar forward end attached to the lower portion of the rearward end of the vehicle attachment member so as to prevent rotation about a horizontal axis, and a moment bar rearward end; a tension member comprising a top end configured to be supported by a frame member of the trailer, and a bottom end configured to support the rearward end of the moment bar, and a spring, configured to bias the moment bar rearward end toward the frame member of the trailer; and wherein, when the tension member is in tension, it imposes an upward force on the moment bar rearward end, which, in turn, imposes a forward moment on the vehicle is disclosed.

An adjustable bracket assembly for a weight distribution system is shown and described herein. The adjustable bracket assembly may include a plurality of bracket members including at least a first bracket member, a second bracket member, a third bracket member, and a fourth bracket member arranged to be adjustable relative to one another and be selectively attached to a frame of a towed vehicle. The plurality of bracket members may be coupled to a plurality of fasteners to allow the plurality of bracket members to be adjusted relative to one another and to provide clamp forces relative to the frame of the towed vehicle. An attachment assembly may be coupled to the first bracket member and be configured to be attached to a spring arm of a weight distributing system that may be coupled to a towing vehicle.

An under bed hitch mounting apparatus is shown and described. The under bed hitch mounting apparatus may comprise a first bracket attachable to a frame of a vehicle below a load bed of the vehicle and a second bracket attachable to the frame of the vehicle below a load bed of the vehicle, the second bracket transversely spaced from the first bracket. The under bed hitch mounting apparatus may also include a first receiving member attached with the first bracket, the first receiving member configured to engage an accessory member, where at least a portion of the first receiving member extends above the load bed of the vehicle, and a second receiving member attached with the second bracket, the first receiving member configured to engage the accessory member, where at least a portion of the second receiving member extends above the load bed of the vehicle.