FLEXIBLE HARROW Russian patent published in 2003 - IPC

FIELD: agricultural engineering. SUBSTANCE: flexible harrow has transverse bar, longitudinal beam and chain sweep connected to both said bar and beam, and connecting member. Harrow is further provided with mechanical winch having double cable and ratchet mechanism. Winch is mounted and fixed on increased rigidity longitudinal bar. Rotary spring tine and rotary carrier wheel are disposed under bar. Transverse bar is made in the form of two pivotal beams attached to vehicle hitch system and connected with their free ends to vehicle hitch system through chain sweep tensioning mechanism. Free ends of double cable are furnished with hooks, which may be attached to vehicle hitch system or to ends of pivotal beams or to chain sweep depending upon operating conditions or transportation. EFFECT: enhanced reliability in operation, simplified construction, reduced weight and decreased possibility of harrow breakage. 2 cl, 11 dwg