DEEP TILLER Russian patent published in 1998 - IPC

FIELD: agricultural engineering, soil tillage equipment used in irrigated agriculture. SUBSTANCE: deep tiller has tine carrying removable knife sections with mounting and cutting parts, and shoe carrying chisel and landboard. Soil deformers of different size are positioned along tine height in inclined plane. Deformers are formed as parts of ellipsoids of revolution and/or parts of ball. Tine is made from plates of different thickness. Mounting part of each knife is positioned between outer plates of inclined tine. Plates are joined by welded seams positioned in stepped process openings arranged along perimeter of tine. Soil deformers are made from tine plates. EFFECT: increased efficiency, simplified construction and improved quality of soil. 5 cl, 6 dwg