Reversible plough with pivot mounted rear wheel - has automatic lock which trips on reversal to allow wheel to assume new position

摘要

The plough is connectable to a tractor lift linkage. The plough body has a support (1) on which a carrier (9) can rotate about a longitudinal axis. A lock (23) acts between the support and the carrier to lock them together in any of three positions, working positions to left and right and an intermediate transport position. The wheel carrier (13, 17) has a stop (19) which frees the lock on lifting the plough consequent on pivoting the wheel carrier with respect to the plough carrier (9). The plough can then be turned to a selected position and on lowering the stop (19) causes the lock to re-engage.