Anti-jackknifing device

摘要

A disk brake system is provided for a tractor and trailer combination in order to control articulation between the tractor and trailer. The hydraulically operated disk brake and disk brake housing are operatively secured to the fifth wheel coupling provided on the tractor and are positioned by a disk brake housing receiving structure located on the trailer when the trailer is attached to the tractor. The fifth wheel coupling has a concentric attachment secured thereto on the side opposite the kingpin receiving socket provided therein. The disk brake has an annular disk brake concentric surface which is pivotally attached at its ends to brackets provided on the fifth wheel and which is slidably engaged by the concentric attachment when the tractor and trailer are attached. The disk brake includes pads located on opposite sides of the disk brake concentric surface.