TILLAGE TOOL Russian patent published in 2007 - IPC A01B21/08 

FIELD: agricultural engineering.

SUBSTANCE: tillage tool has battery including horizontal axis of rotation and equipped with disks on which disks are fixed teeth, and with round pins at their ends. Drum with teeth is positioned behind battery. Disks are made of larger and smaller diameter, and are arranged in alternation, beginning from smaller diameter disk and terminating also with smaller diameter disk, and are freely mounted in close relation with one another on axis. Disk teeth are made in the form of separating V-shaped members and are rigidly fixed in equally spaced relation at opposite points of disks for rotation through 90 deg within attachment receptacle relative to their longitudinal axes. Teeth of each subsequent disk are turned through 90 deg relative to teeth of previous disk. Teeth provided on disks of smaller diameter are longer than teeth provided on disks of larger diameter. Ends of all teeth of battery are spaced by equal distance from axis. Drum has length equal to width of battery. Teeth are rigidly fixed on drum cylindrical surface in rows, in equally spaced relation, and are radially positioned so as to define helical lines relative to drum longitudinal axis. Drum teeth are positioned in gaps between battery teeth. Apexes of drum and battery teeth are similar to one another, are made oval-shaped and are positioned for replacement on teeth.

EFFECT: improved quality of soil tillage and increased efficiency in combing out of weeds.

5 dwg