DEEP TILLAGE CHISEL Russian patent published in 2000 - IPC

FIELD: agriculture. SUBSTANCE: deep tillage chisel has tine with two rigidly connected sides which are offset one with respect to the other so as to define blade. Ripping member is fixed on lower end of tine. Two pairs of horizontal undercutting members are made by cutting out and bending respective portions of beveled sides for forming blades. Tine is positioned in symmetry with respect to longitudinal-vertical axis so that it may be repositioned on frame through 180 deg. Undercutting members are arranged in symmetry with respect to axis to form window on tine sides. Sides and undercutting members are equipped with auxiliary blades positioned on their end sides in opposed relation to blades on front ends. Tine has auxiliary ripping member. EFFECT: increased service life, improved operating characteristics and simplified construction of working tool. 3 cl, 5 dwg