A trailer is a type of vehicle used to transport vehicles. It is typically a flatbed design with loading ramps, a reversible trailer tongue, and tie-down points. Trailers are most commonly used to transport passenger cars or light trucks. However, they can also be used to transport motorcycles and other cargo. Some trailers are even equipped with a cargo lift for easy loading and unloading of heavy equipment. The trailer industry uses a number of different terms that are not always clearly defined. To assist trucking professionals, this article provides an overview of common trailer terms and definitions.
A common trailer term is trailer hitch, which refers to the device that connects a trailer to a towing vehicle. A trailer hitch consists of a ball-shaped attachment mounted on the rear of the trailer and a metal bar that connects to the trailer’s coupler. The maximum weight that a trailer hitch system can handle is specified by its load rating.
Another common trailer term is a bogey, which is the sub-assembly that includes axles and suspension on a fixed trailer. This is sometimes referred to as the “running gear.” A bogie may be welded directly to the trailer body or placed in a slide track on a trailer with a fixed tandem axle. Some trailer manufacturers use a bogie sub-assembly that is mounted in a slide track on the chassis of a semitrailer, and this is sometimes called a slide-on bogey.
Other trailer terms that are often used include cargo van, drop-deck trailer, freight carrier, and logistics track. Cargo vans are trailers designed to transport dry goods and are often open or partially enclosed. A drop-deck trailer is a specific type of cargo van that has a lower deck height for loading taller equipment or machinery. Freight carriers are companies that transport large amounts of freight for a fee. A logistics track is a set of slotted steel or aluminum rails on a trailer that can be fitted with logistics straps for holding cargo in place. The different types of logistic tracks have varying features, including length, width, material and finish, and the shape of the slots.
Trailers are used to promote movies, and they may contain footage from the film that does not appear in the final version. This technique is sometimes used to give a more action-oriented impression of the movie, to draw in audiences who may be otherwise reluctant to see the film. The classic example is Alfred Hitchcock’s shower scene in his 1960s horror film Psycho, which appeared in the trailer but was not included in the final film.
Trailers also often feature music keluaran sgp that does not appear on the final soundtrack. This is usually because the trailer editors are given dailies (sample clips from the film) rather than the complete score for the film. In addition, it is normal for trailers to be completed long before the composer has started work on the soundtrack. This can lead to creative clashes and tension.