A commercial vehicle used for parcel delivery is installed with a control module. The control module communicates wirelessly with a transmitter to give control to the vehicle operator. The vehicle operator can access the vehicle's cargo compartment through the bulkhead door and/or the rear door solely by using the transmitter as opposed to manually actuating the door latch. A door actuator is added to the bulkhead door such that when the bulkhead door is wirelessly actuated the door opens without operator assistance, and the process of the door opening does not damage the vehicle. Additionally, the vehicle operator can initiate the control module to allow a push-button start and stop of the vehicle's ignition system. Such elements contribute to time savings and cost savings for parcel delivery operators.

An endgate striker assembly engageable with an endgate latch, wherein the endgate striker assembly has a striker and an overmolded-annular shoulder. The striker has an attachment portion at one end, a head at the opposite end and a cylindrical shaft between the attachment portion and the head. The overmolded-annular shoulder is between the cylindrical shaft and the attachment portion. The overmolded-annular shoulder has an annular damper and an annular shoulder. The annular damper is molded over the surface of the annular shoulder facing the cylindrical shaft and at least part of the outer circumferential surface of the annular shoulder.

A truck box cover device extended and retracted in a transmission manner includes a clutch type driving gearbox, a roller shutter shaft and roller shutter cover rail support frames. The clutch type driving gearbox is connected with the roller shutter shaft. The roller shutter shaft is stripped winding shaft and comprises a transmission end and a roller shutter cover mounting shaft. One end of the transmission end is connected with the clutch type driving gearbox and is driven by the clutch type driving gearbox to correspondingly rotate, and the other end is connected to the roller shutter cover mounting shaft. One end, away from the transmission end, of the roller shutter cover mounting shaft is fixed to the interior of a driven bearing.

The present disclosure is directed generally to powered trailer systems and, more particularly, to powered trailer systems for opening and closing trailer doors at, e.g., a vehicle loading dock, and to vehicle and/or trailer power delivery and charging systems. A powered trailer door operating system can include a guide track having a lower guide track portion and an upper guide track portion; a drive support coupled to the upper guide track portion having a drive shaft positioned within a central cavity; and a carriage slidingly coupled to the drive support and operably coupled to the trailer door. The carriage can be operably engaged with the drive shaft through the slot such that rotation of the drive shaft causes the carriage to translate along the drive support, thereby moving the trailer door between the open and closed positions.

A counterbalance hinge assembly includes a cam and compression device that counterbalances a weight of a door or a ramp. The compression device biases against a rotation of the door or ramp. The downward movement of the door or ramp drives cam followers in angled slots or cam surfaces of the cam. The angled slots or cam surfaces include varying angles of incline to correspond to varying torque forces of the door or ramp during the opening or closing movement of the door or ramp.

Various disclosed embodiments include illustrative hinges, door assemblies, storage bins, and vehicles. In an illustrative embodiment a hinge includes a hinge bracket, a hinge pin, a hinge arm, and a detent assembly. The hinge arm is rotatably connected to the hinge bracket via the hinge pin. The detent assembly is adapted to define a detent position of the hinge arm relative to the hinge bracket that is between an open position and a closed position of the hinge arm relative to the hinge bracket. The detent assembly includes a detent plate and a plunger assembly. The detent plate includes a recess formed therein. The plunger assembly includes an end that is biased at least partially into the recess while circumferentially aligned therewith to define the detent position.

A hinge structure may comprise a first assembly including a central post with an outer surface and a first connector element on the central post for mounting on a first structure, a second assembly pivotally coupled to the first assembly and including a ring extending about the central post, a ring connector connected to the ring, and a second connector element on the ring for mounting on a second structure. A braking element may apply a selectable amount of resistance to pivot movement of the second connector element with respect to the first connector element and including a friction pad extending about a portion of the central post, a pressure band for pressing the friction pad against the central post, and a connecting structure connecting the ends of the band and being adjustable to move the ends closer toward each other and to relax the ends away from each other.

The present disclosure is directed generally to automated trailer door systems for use at vehicle loading docks. At least a portion of the trailer door system can be externally driven for opening and closing trailer doors at the loading dock. The automated trailer door system can include a counterbalance shaft that moves the trailer door between a closed position and an open position; and a drive unit having a torsion member operably coupled to the counterbalance shaft; and a drive member rotatably engaged with the torsion member, the drive member having an engagement portion accessible external to the trailer door. Rotation of the drive member via the engagement portion can rotate the torsion member to move the trailer door between the closed and open positions. A door winder can be coupled to a centering body and have a motor to rotate the drive member via the engagement portion.

A transportation vessel includes a first sidewall and an opposing second sidewall. A load bar has a first end and a second end. The load bar is movable between a horizontal orientation and a vertical orientation. In the horizontal orientation, the first end is attached to the first sidewall and the second end is attached to the second sidewall, and the load bar may support cargo while the cargo is being transported in the transportation vessel. In the vertical orientation, the first end is attached to the first sidewall and the second end is unattached to the second sidewall.

A trailer truck is the combination of a truck and one or more trailers used to haul freight. A trailer attaches to the truck via a trailer coupling (hitch), with much of its weight borne by the truck. The result is that both the truck and the trailer will have a distinctly different design than a rigid truck and trailer. Exemplary vehicles are provided, such as heavy duty trucks having truck bodies with improved aerodynamic characteristics, including improved drag coefficients.