Land wheel assembly for reversible plough - has pivoted support arm whose swinging movement is controlled by stops adjustable with angular setting of frame

摘要

The land wheel is supported on the reversible plough frame by an arm which pivots about a horizontal, transverse axis. There are stop elements on the pivot arm and on the plough frame. The stops (70, 88) are so arranged that in both plough working positions they are adjacent. The stops can be so moved relative to each other according to the angular setting of the plough frame that they assume a covering position in both working positions of the plough frame and a non-covering position during rotation. A setting device (70, 84) on the pivot arm transfers the pivot arm, in the final phase of turning into a position where the support wheel axle lies behind the vertical radial plane through the pivot axis.