Truck lockout device

Glad Hand refers to a style of quick release air connector. When disconnected, the brakes on the truck lock on, effectively immobilizing the trailer.

This can be an effective control mechanism when loading and unloading trailers at loading docks. It’s not uncommon for the truck/trailer to drive away from the loading bay unknown to the loading vehicle driver. In the worst case scenario, the loading vehicle can fall into the gap, often throwing the driver out of his/her cab in the process causing untold injury or even death.

Immobilizing the trailer using a Glad Hand Lockout is said to be a low cost, but highly effective means to prevent this type of accident.