OPENER FOR CULTIVATION-PLANTING COMBINE Russian patent published in 1997 - IPC

FIELD: agricultural engineering. SUBSTANCE: opener has main and additional legs. main leg is made up of two sides with displaced blades on front portion. Mated surface of main leg sides have slots forming through hole to accommodate feed tube. Mounted on lower portion of main leg is drill in form of elliptical cone with rounded off top whose base in place of mating with leg has concave curvilinear surfaces. Feed tube lower cut is placed above drill nose. Additional leg consisting of two sides is placed in line with main leg. Rigid curvilinear carrier is mounted on front portion of additional leg. Rear end of carrier is installed at level of rounded off end of front leg drill. Sides of additional leg form convex cone-shaped open bell pointed upwards with its curvature. End faces of larger neck of bell are provided with working blades. EFFECT: enlarged operating capabilities. 11 dwg