A dock leveler is a mechanical device that is used to bridge the gap between the loading dock and the trailer bed of a semi-trailer truck or trailer. It is designed to allow easy loading and unloading of goods from the trailer, and to provide a smooth and safe transition between the two surfaces.
The structure of a dock leveler typically consists of a deck or platform, which is supported by a series of hinges and springs. The deck is mounted on the loading dock, and is able to pivot or raise and lower as needed to match the height of the trailer bed. The deck may be equipped with a lip or ramp that extends out to the trailer, allowing for smooth and easy access.
Some dock levelers also have additional features, such as hydraulic or pneumatic lift systems, to help raise and lower the deck, or to provide additional stability. Some may also have safety features, such as sensors or guards, to prevent accidents or injuries during the loading and unloading process.