TOOTHED HARROW Russian patent published in 2002 - IPC

FIELD: agricultural engineering. SUBSTANCE: harrow has frame with cylindrical, many-sided or spring teeth arranged inside frame. Teeth are provided with openings for receiving curved resilient rods. Ends of rods arranged opposite attachment sites are continuously curved. Angle between rod curved ends and rod surface is 5-25 deg. Height of curved part and distance from teeth ends to rod attachment center is equal to half the tilling depth. Harrow teeth are subjected to strengthening. EFFECT: simplified construction and increased quality of soil tillage by improved combing and carrying out of weeds onto field surface. 2 cl, 5 dwg