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Dock plates and dock boards are generally portable; dock levelers and lifts are generally permanent fixtures. [2] Dock plates and dock boards are simply metal ramps which bridge the gaps between dock and truck. [4] Dock plates are generally made out of aluminium whilst dock boards are generally made out of steel for greater strength.
The engines that are used to power the propulsion units are also used to operate the hydraulic rams, which raise and lower the two ramps. [ 1 ] Air Portable Ferry Bridge Safety Line System All APFB systems include a safety line system designed to protect the user in the event of a fall from the bridge.
One example is trailer creep (also known as trailer walk, or dock walk), which occurs when the lateral and vertical forces exerted each time a forklift truck enters and exits the trailer cause the trailer to slowly move away from the dock, resulting in separation from the dock leveler. Factors that affect trailer creep are the weight and speed ...
A container chassis, also called intermodal chassis or skeletal trailer, is a type of semi-trailer designed to securely carry an intermodal container. Chassis are used by truckers to deliver containers between ports , railyards, container depots, and shipper facilities, [ 1 ] : 2–3 and are thus a key part of the intermodal supply chain .
To load vehicles on the top deck of a double-decker commercial trailer, the rear half of the deck can tilt and be lowered hydraulically, forming a drive-up ramp to the upper deck. The top deck is usually loaded first and off-loaded last since the presence of cars on the lower deck can make it impossible to lower the top deck ramp.
A runaway truck ramp on the A7 in Germany. A runaway truck ramp, runaway truck lane, escape lane, safety ramp, emergency escape ramp, or truck arrester bed is a traffic device that enables vehicles which are having braking problems to stop safely.
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