TILLAGE TOOL Russian patent published in 1999 - IPC

FIELD: agriculture, in particular, basic soil cultivation. SUBSTANCE: tillage tool has share, landslide, tine, shoe with share bed. Tillage tool is characterized in that shoe has detachable moldboard bed joined to shoe by means of attachment members, and to tine by means of bracket and stop, which is positioned in upper part of moldboard bed for contact with tine at its landward edge. Main rigidity rib is positioned under shoe in plane coinciding with that of landward edge, with front end of rigidity rib adjoining to share bed and rear end being provided with landslide attachment openings. Surface of main rigidity rib is turned toward field through 2-4 deg at point of contact with landslide. Landslide attachment openings line is inclined rearward through 1-3 deg to horizontal plane. Fanlike auxiliary rigidity ribs are positioned on lower shoe surface under tine, with rib joining center being disposed within interval extending from mid portion to tail end of projection of lower end surface of tine onto lower surface of shoe. EFFECT: increased efficiency, simplified construction and reduced metal usage. 2 cl, 3 dwg