| 摘要 |
A dock leveler is mounted in a pit formed in the floor of the loading dock area of a factory, warehouse or similar facility. The loading dock includes an overhead door adjacent the dock leveler. The dock leveler is retractable so that, when it is not in use, it can be stored fully within the facility inboard of the overhead door. To prevent vehicles from inadvertently falling off the end of the stored dock leveler, the dock leveler includes a raisable barrier. When raised, the barrier is located between the end of the dock leveler and the overhead door. In addition to preventing vehicles from accidentally running off the end of the dock leveler, the barrier also protects the overhead door from accidental collisions with such vehicles. When the dock leveler is in use, the barrier folds away to a position below the extendible ramp. Alternatively, the dock leveler can be non-retractable and the barrier can be raised and lowered in from of the ramp.
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