ROTARY CULTIVATOR Russian patent published in 2008 - IPC A01B79/00 

FIELD: agriculture.

SUBSTANCE: invention refers to agricultural machinery, particularly to the tillage equipment. The rotary cultivator includes the frame and operational elements containing hubs with knives fixed on them using spikes. The device has crossbolsters with pivotal fixings attached to the frame. Each fixing is conjugated with inclined axis. The central line of each inclined axis creates obtuse angle with rotation axis of each fixing. Side view of the centre line of each inclined plane creates acute angle with movement direction of the tillage equipment. Each hub is installed on separate inclined plane and can be rotated against centre line of this axis. Each hub has a knife attached to it with working surface in the form of flattened cone. Its generatix moves through the centre line of inclined axis and rotation axis of the fixing and is angled towards contour line. The circle low point creating cutting edge of each separate knife is located on the rotation axis of the fixing.

EFFECT: decrease of weed density and improvement of tillage quality.

5 dwg