TILLAGE TOOL Russian patent published in 1998 - IPC

FIELD: agriculture, in particular, erosion preventive tillage of soil. SUBSTANCE: tillage tool has wheeled frame carrying holders arranged in two rows and adapted for holding blades and flat hoes. Double-sided wedges are mounted centrally of flat hoe and share edges, with wedge apexes being oriented in forward direction. Roller is attached to frame by means of carriers. Teeth on roller bars are made in the form of three-faced pyramids and positioned so that they follow track of each wedge in longitudinal- vertical plane. Teeth cutting edges are arranged in alternation at right and left sides relative to longitudinal-vertical plane and along roller. During advancement of tillage tool, flat hoe with shares cut soil in horizontal plane and blade cuts soil layer in vertical plane. Three-faced wedges lift soil layer and place it on earth rolls formed between their bases by lateral shifting of soil. Soil layer placed onto earth rolls is acted upon by roller teeth from above and broken into small fractions. EFFECT: increased efficiency by minimum power consumed for soil crumbling and improved quality of tilled soil. 2 cl, 3 dwg