A drawbar is a solid coupling between a hauling vehicle and its hauled load. Drawbars are in common use with road trailers, both large and small, industrial and recreational.
The drawbar should not be confused with the fifth wheel coupling.
Drawbars are not restricted to road haulage, nor to agricultural or similar use. A rail locomotive hauls its load through a drawbar and hauling force is transmitted between rolling stock via drawbars between units.
A drawbar is used to couple the load to the tractive vehicle. The directon of haulage may be push or pull, though pushing tends to be for a pair of ballast tractors working one pulling and the other pushing an exceptional load on a specialist trailer.
References
- United States Patent 6739402 - Transport Drawbar (2004-05-25). Retrieved on 2007-10-09.
This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
