An improved fifth wheel for a tractor trailer rig is described. The wheel is characterized by a first subassembly including a wear plate adapted to be mounted on a downwardly facing surface of a trailer with a normally projected king pin. A second subassembly is adopted to be pivotally mounted on an upwardly facing surface of a tractor and brought into contiguous relation with the first subassembly. A receiver is included for capturing the king pin and safety means responsive to a failure of the king pin or its latching mechanism for joining the first subassembly with the second subassembly.
An Improved Fifth Wheel
1975
22 pages
Report
No indication
English
NTRS | 1976
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