A transportation vessel includes a sidewall having a vertically oriented track on an interior side of the sidewall. The track extends upwardly to a top of the sidewall. A load bar has end(s) coupled to the track such that the end of the load bar is vertically slidable along the track. A stop bracket is positioned at a top of the track. The stop bracket includes a track extension and a stop piece. The track extension accommodates sliding of the load bar upwardly above the track. The stop piece blocks upward sliding of the load bar above the track extension.

A liftgate alert apparatus for alerting drivers when a liftgate is down before driving includes a pressure switch configured to be coupled to an air line of an airbrake system of a truck or a trailer. The pressure switch is closed when the airbrake system is activated. A roller switch is in operational communication with the pressure switch and is configured to be coupled to a liftgate. The roller switch is closed when the liftgate is in a down position. An alarm is in operational communication with the pressure switch, the roller switch, and a power source. The alarm has an alarm ground wire. The alarm is configured to be coupled within a cab of the truck or on a front end of the trailer and activates an audio and or visual alert when both the pressure switch and the roller switch are closed.

A pivoting system has an electronic device pivotably mounted on a cargo platform. A base is coupled to a cargo support. A linkage rod slidably engages with the cargo platform. A proximal pivot pivotably couples the proximal end of the linkage rod arm to the base. A device pivot pivotably couples the electronic device to the cargo platform. A distal pivot pivotably couples the distal end of the linkage rod to the electronic device. The pivoting system causes pivoting of the electronic device between a lower general horizontal position and an upper general horizontal position.

A system to detect and avoid spilled cargo in an automobile vehicle, includes an automobile vehicle rear cargo area including a floor to temporarily receive a storage item in the cargo area. A lift gate is moved between a closed and latched position and a fully open position inclusive to allow loading and removal of the storage item. A vision system identifies the storage item when initially loaded in the cargo area and identifies if the storage item is initially positioned in a cargo spill position or subsequently moves to the cargo spill position. A cargo stop device is releasably connected to the lift gate. An operating system releasably stores the cargo stop device when the storage item is not in the cargo spill position and deploys the cargo stop device when the storage item is in the cargo spill position.

An embodiment of a lighting device for a lift gate includes one or more sensors, each sensor configured to generate an output signal based on motion and/or orientation thereof, wherein each sensor is coupled to a movable member of the lift gate to generate an output signal indicating a motion and/or position state of said movable member of the lift gate; a controller circuit coupled to each sensor to receive an output signal from each sensor, wherein the controller circuit is configured to generate one or more control signals for controlling operation of one or more lighting elements; and one or more lighting elements coupled to the controller circuit to receive control signals from the controller circuit; wherein the controller circuit is configured to generate one or more control signals in response to the output signals from each sensor, for controlling operation of one or more lighting elements based on sensed state of the moveable member.

A pivoting system has an electronic device pivotably mounted on a cargo platform. A base is coupled to a cargo support. A linkage rod slidably engages with the cargo platform. A proximal pivot pivotably couples the proximal end of the linkage rod arm to the base. A device pivot pivotably couples the electronic device to the cargo platform. A distal pivot pivotably couples the distal end of the linkage rod to the electronic device. The pivoting system causes pivoting of the electronic device between a lower general horizontal position and an upper general horizontal position.

A tailgate indicator light device comprises a sensor mounted adjacent an existing tailgate bolt configured to communicate wirelessly with an alert module. The alert module is capable of being mounted to a vehicle dashboard and comprises a plurality of illumination means. The sensor and module may be powered by the electrical system of the vehicle or a rechargeable battery. A USB port is disposed within the housing of the alert module. The device is configured to visually communicate to a user the open or closed status of the tailgate of a vehicle into which the device is installed.

A pivoting system has an electronic device pivotably mounted on a cargo platform. A base is coupled to a cargo support. A linkage rod slidably engages with the cargo platform. A proximal pivot pivotably couples the proximal end of the linkage rod arm to the base. A device pivot pivotably couples the electronic device to the cargo platform. A distal pivot pivotably couples the distal end of the linkage rod to the electronic device. The pivoting system causes pivoting of the electronic device between a lower general horizontal position and an upper general horizontal position.

Described are system and methods in which the speed of a service vehicle and the configuration of an extendable service component of the vehicle may be monitored. The vehicle can be driven with the extendable service component out of its home configuration as long as the speed is below a speed threshold. However, if the speed of the vehicle exceeds the speed threshold while the extendable service component is out of its home configuration, an extended service component alert signal is transmitted. Although a local alarm may (also) be provided to the vehicle operator, the extended service component alert signal is transmitted wirelessly and provides one or more alerts on at least one receiver remote from the vehicle, such as on a mobile phone of a supervisor who can take action. In some embodiments, the speed threshold may vary depending on the location of the vehicle.

A warning light assembly for a vehicle having a tilt bed is provided. The warning light assembly includes a housing having an opening and a light assembly pivotally suspended within the housing. The light assembly is configured to pivot through the opening when the housing is rotated, thereby remaining in a substantially perpendicular orientation relative to a ground surface.