A draw bar arrangement comprising a draw bar support means (31) for securing to a tractor (13) is provided. A draw bar (30) is secured to the draw bar support means to extend in a generally fore and aft direction relative to the tractor. The draw bar (30) is secured to the support means (31) by a latch or pin (37) which engages an aperture (42) in the draw bar. The latch or pin (37) is withdrawable from the aperture (42) by movement of a handle (41) accessible from the rear of the draw bar.