| 摘要 |
An extension coupling for releasably interconnecting a trailer to a fifth wheel tow hitch. This extension coupling includes a mount that is secured to the trailer, and an elongated arm that is pivotally secured to the mount and one end. A universal joint with lateral pins is attached to the other end of the arm to mate with the tow hitch. This allows the trailer to be displaced rearwardly of the tow hitch a distance equal to the length of the elongated arm while at the same time maintaining the loading point on a tractor vehicle forward of the rear axle. The assembly allows the trailer to pivot normally, without hitting the cab of short-bed pickup trucks. It also ensures that the weight of the trailer is carried forward of the rear axle for stability.
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