A structural assembly for load carrying chassis of vehicles includes beams extending fore and aft on the chassis with passages laterally through the beam webs. I-beams extend through the passages through the beams. Brackets are fixed to the principal beams at the passages. The brackets each include a bracket web, a bracket flange extending from the bracket web and two bosses on the bracket web extending past the bracket flange. The bosses of each of the brackets extend to either side of lower I-beam flanges. The bracket flanges extend through the passages in contact with the beams in the passages. The brackets are shown as integrally formed or as composite assemblies of a plate and an extrusion.

A trailer for being pulled by a motor vehicle, the trailer comprising a chassis having a front section, a first side section and a second side section, wherein the front section comprises coupling means for being coupled to a motor vehicle. The trailer further comprises a first and a second bogie, each bogie having two wheels, the first bogie being connected to the first side section of the chassis in a first pivoting coupling and the second bogie being connected to the second side section of the chassis in a second pivoting coupling. The trailer comprises a first and a second runner extending in the driving direction of the trailer and the first and second runners are moveable between an on-road position and an off-road position, and the first runner is mechanically coupled to the first bogie and the second runner is mechanically coupled the second bogie so that the runners may pivot relative the chassis.

A trailer for being pulled by a motor vehicle, the trailer comprising a chassis having a front section, a first side section and a second side section, wherein the front section comprises coupling means for being coupled to a motor vehicle. The trailer further comprises a first and a second bogie, each bogie having two wheels, the first bogie being connected to the first side section of the chassis in a first pivoting coupling and the second bogie being connected to the second side section of the chassis in a second pivoting coupling. The trailer comprises a first and a second runner extending in the driving direction of the trailer and the first and second runners are moveable between an on-road position and an off-road position, and the first runner is mechanically coupled to the first bogie and the second runner is mechanically coupled the second bogie so that the runners may pivot relative the chassis.

A portable conveyor apparatus comprises a trailer arranged for towing behind a highway tractor with ramps which are positionable so that a dump truck may drive over the trailer and discharge particulate material into an inlet supported on a frame of the trailer. The conveyor apparatus features a first conveyor carried by the trailer frame so as to extend longitudinally thereof for carrying the particulate material along the trailer. The apparatus also features a second conveyor which is carried by the trailer frame adjacent the first conveyor for transferring the particulate material received and carried by the first conveyor to another location beyond the trailer. The second conveyor is positionable in a working position such as when it operates to convey the particulate material and in a transport position where the second conveyor lies within the periphery of the trailer frame during transportation.

A bag is disclosed for covering an endless track or chain of a tracked heavy equipment vehicle during transport. The bag includes an outer segment for covering an outer portion of the track extends laterally beyond side edges of the trailer flatbed. Forward and rearward lobes of the bag, respectively engage and cover forward and rearward ends of the track. An inner bag segment engages and covers the track between the side edges of the flatbed trailer supporting the tracked vehicle. A recess in an inside segment of the bag accommodates a track and allows the track to directly engage the supportive trailer. Tensioning straps and cords are used to further secure the bag to the track.

A convertible trailer system includes a convertible trailer having a segmented lower deck, and a segmented upper deck mounted thereover. The segmented lower deck includes floating forward and rear belly ramps which are independently actuable relative to each other so as to be selectively raised and lowered relative to a pair of side rails which define the belly forward of the trailer wheels. When in a fully lowered position the belly ramps are lowered to a lower extremity between the pair of side rails so as to be substantially entirely below uppermost edges of the pair of side rails. When in an elevated position the belly ramps are elevated so as to be co-planar with or above the uppermost edges of the side rails whereby freight may be loaded laterally onto the belly ramps over the pair of side rails.

A convertible trailer system includes a convertible trailer having a segmented lower deck, and a segmented upper deck mounted thereover. The segmented lower deck includes floating forward and rear belly ramps which are independently actuable relative to each other so as to be selectively raised and lowered relative to a pair of side rails which define the belly forward of the trailer wheels. When in a fully lowered position the belly ramps are lowered to a lower extremity between the pair of side rails so as to be substantially entirely below uppermost edges of the pair of side rails. When in an elevated position the belly ramps are elevated so as to be co-planar with or above the uppermost edges of the side rails whereby freight may be loaded laterally onto the belly ramps over the pair of side rails.

A vehicle tow platform adapted for mounting on a two-wheeled trailer or dolly. The vehicle tow platform includes at least one platform segment adapted to support a wheeled vehicle. An upwardly projecting wall segment positioned forward of the platform segment is adapted to block forward rolling of the wheeled vehicle.

A trailer includes a housing including an internal frame and an external frame. The external frame is coupled to the internal frame. In certain embodiments, the internal frame is positioned between interior panels and exterior panels of the housing. In certain embodiments, the external frame is spaced from exterior panels.

A trailer frame including an axle section having two spaced longitudinal frame members connected by at least one cross member, the longitudinal frame members each having a first end and a second end; a rear section attachable to the axle section; and a dimple assemble joining the axle section to the rear section, the dimple assembly including a dimple pattern formed on each frame member of the axle assembly, the dimple pattern on the axle assembly defining a first dimple axis, and a dimple pattern formed on one end of the rear section and nestable within the dimple pattern formed on the axle section, the dimple pattern on the rear section defining a second dimple axis offset relative to the first dimple axis to create a camber between the axle section and the rear section when the first dimple is nested within the second dimple pattern.