| 摘要 |
<p>An improved locking mechanism for a movable subframe of a tractor-trailer has a pair of transversely spaced-apart main members extending longitudinally underneath a body of the tractor-trailer, at least one cross member extending between and being attached to the main members, and an axle/suspension system attached to and depending from the main members. A clamping mechanism is attached to the subframe and mechanically engages a longitudinally extending rail of the body of the tractor-trailer to selectively position the subframe relative to the body. Unwanted movement and gyrations between the subframe and the tractor-trailer body are minimized by the fore-aft clamping loads exerted on the rail and the subframe by the clamping mechanism. This allows the slider box of the subframe to be constructed of lightweight materials which in turn permits the tractor-trailer to carry larger payloads.</p> |
