A fifth wheel mounting bracket includes a mounting bracket including a coupling portion configured to pivotally couple to a fifth wheel hitch plate, the mounting bracket including an innermost surface and an outermost surface defining a mounting bracket thickness, at least one isolation area having isolation area thickness that is less than the mounting bracket thickness, and at least one strain gauge positioned within the at least one isolation area and configured to measure a strain of the fifth wheel mounting bracket arrangement.

A fifth wheel mounting bracket includes a mounting bracket including a coupling portion configured to pivotally couple to a fifth wheel hitch plate, the mounting bracket including an innermost surface and an outermost surface defining a mounting bracket thickness, at least one isolation area having isolation area thickness that is less than the mounting bracket thickness, and at least one strain gauge positioned within the at least one isolation area and configured to measure a strain of the fifth wheel mounting bracket arrangement.

A trailer having a bed portion includes: a deck including a first end and a second end and including a first side and a second side; a front extension moveably engaged with the first end of the deck, where the front extension includes a first beam moveably engaged with the deck on the first side and a second beam moveably engaged with the deck on the second side; and a rear extension moveably engaged with the second end of the deck, where the rear extension includes a first beam moveably engaged with the deck on the first side and a second beam moveably engaged with the deck on the second side. The first beam of the front extension is arranged vertically relative to the first beam of the rear extension, and the second beam of the front extension is arranged vertically relative to the second beam of the rear extension.

A booster axle assembly includes a wheel axle, a suspension system coupled to the wheel axle, a booster frame supported by the suspension system, a main link coupled via a first hinged connection to a rear portion of the booster frame and extending from the first hinged connection in an upward and forward direction, a lock assembly coupled to a forward end of the main link via a second hinged connection, and a lockup frame (with a curved bottom portion that defines a cradle) coupled to a front end of the booster frame by a third hinged connection and coupled to the lock assembly by a fourth hinged connection and a fifth hinged connection.

A fifth wheel control arrangement (100) for an articulated vehicle comprising a fifth wheel having a biased hinge joint and an actuator (115) arranged to control a biasing force and/or a damping force of the biased hinge joint. The control arrangement comprises a control unit configured to automatically control the actuator in response to one or more input sensor signals associated with a current state of the articulated vehicle, to obtain a target wheel axle load of the articulated vehicle and/or to stabilize the articulated vehicle.

A trailer includes a chassis with at least one axle including left and right wheel and tire assemblies that support the chassis for rolling movement on a surface. A body is supported on the chassis and includes: (i) left and right sidewalls spaced apart from each other and respectively located on opposite left and right lateral sides of the body; (ii) a curved floor that extends between the left and right sidewalls; (iii) a bulkhead located at a front end of the body and extending between the left and right sidewalls; (iv) a tailgate located a rear end of the body and extending between the left and right sidewalls, the tailgate movable relative to the left and right sidewalls between an opened position and a closed position; (v) an open-top cargo space for containing an associated bulk commodity defined between the left and right sidewalls, the floor, the bulkhead, and the tailgate, wherein a dump opening of the cargo space is defined between the left and right sidewalls and is blocked by the tailgate when the tailgate is in its closed position and is at least partially unblocked when the tailgate is in its opened position. The bulkhead includes a one-piece aluminum alloy bulkhead sheet formed into a three-panel shape comprising a left panel, a right panel, and a central panel. The bulkhead includes opposite inner and outer sides, with the inner side oriented toward the cargo space. A respective obtuse angle is defined between the central panel and each of the left and right panels on the inner side of the bulkhead.

A safety apparatus for a fifth wheel coupling having locking jaws arranged to detachably couple to a trailer having spring applied air brakes, the fifth wheel coupling comprising a locking component that is moveable between a first position whereat the locking jaws are in a coupled state and a second position whereat the locking jaws are in a decoupled state, the safety apparatus comprising a pneumatic valve arrangement pneumatically coupled to both a constant air pressure supply and an air park brake supply that supplies pressurised air to the spring applied air brakes, and a mechanical actuator mechanically coupled to the locking component and configured to mechanically actuate the pneumatic valve arrangement when the locking component moves from the first position to the second position, thereby causing the pneumatic valve arrangement to block flow in an air park brake supply line for preventing the spring applied air brakes from releasing.

A safety apparatus for a fifth wheel coupling having locking jaws arranged to detachably couple to a trailer having spring applied air brakes, the fifth wheel coupling comprising a locking component that is moveable between a first position whereat the locking jaws are in a coupled state and a second position whereat the locking jaws are in a decoupled state, the safety apparatus comprising a pneumatic valve arrangement pneumatically coupled to both a constant air pressure supply and an air park brake supply that supplies pressurised air to the spring applied air brakes, and a mechanical actuator mechanically coupled to the locking component and configured to mechanically actuate the pneumatic valve arrangement when the locking component moves from the first position to the second position, thereby causing the pneumatic valve arrangement to block flow in an air park brake supply line for preventing the spring applied air brakes from releasing.

A cargo vehicle is disclosed having a composite floor assembly with at least one conduit extending along a length of the composite floor assembly. The at least one conduit may include a first internal cavity and a second internal cavity. The first internal cavity may be configured to route at least one vehicle component. The second internal cavity may be configured to receive at least one vehicle component or a plurality of mechanical fasteners. The mechanical fasteners may be used to couple a base rail to the composite floor assembly.

A rotatable trailer bed includes a frame, a trailer bed, a turntable swivel assembly, and a plurality of swivel casters. The frame includes a bed section, a hitch section, and two wheel sets. The hitch section is adjacently connected a front end of the bed section. The two wheel sets is rotatably mounted to the bed section. The plurality of swivel casters is mounted to the bed section is perimetrically positioned around the bed section. The trailer bed is rotatably mounted to the bed section through the turntable swivel assembly as the plurality of swivel casters maintain the balance and level of the trailer bed.