Rite-Hite Dok-Lok RHR600, RHR-1000 and STR-4100 vehicle restraints

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The Dok-Lok RHR-600, RHR-1000 and STR-4100 vehicle restraints help prevent accidents from unexpected trailer separation from the dock.

The rotating hook design is claimed to be more effective than vertical barrier restraints in preventing more types of loading dock accidents. The hook can wrap up and over the RIG bar, securing the trailer to the dock to help prevent accidents due to early departure, trailer creep and trailer walk. The design allows the restraint to help limit vertical trailer movement resulting from landing gear collapse and helps prevent trailer tip-over accidents.

The hook gives the restraint greater reach in below-dock end load situations, when the leveller lip depresses the housing of the restraint. Above-ground mounting moves the unit out of the way of dirt, debris, ice, snow and standing water.

It is designed for impact and to withstand a pullout force of 14,545 kg and is automatically and easily positioned by the truck as it approaches the dock face.

The communication system is simple and reliable. A system of signs and red and green lights inside and outside the dock helps workers know when it is safe to proceed.

Operation is straightforward - when the trailer is in position against the dock bumpers, the lock button is pushed. The hook comes up to grab the RIG bar and secures the trailer to the dock. The lights of the communication system change to indicate engagement. When operations are complete, the unlock button is pushed, the restraint is released, the lights change and the truck may depart.