METHOD OF RAKING AND SEPARATION OF SOIL DURING HILLING OF TILLED AND INDUSTRIAL CROPS AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2012 - IPC A01B13/02 A01B39/14 

FIELD: agriculture.

SUBSTANCE: method includes crumbling soil and its displacement. The soil from the middle of row spacing to the depth of hilling is grabbed with combs and simultaneously is separated to the set structure with the surfaces of branches made along the logarithmic spiral. The prepared soil is raked and fed on the protective strip to the rows of plants, without disturbing the plants root system. From the side of the furrow along the movement of the unit, the ridges of air- and water-permeable structure are formed by moving combs mounted on rollers along cycloidal trajectory. The device comprises conical rollers which cone tips are pointed towards the furrow. The working body of the hiller of one furrow has two conical rollers along which generators the working combs are fixed. On the base of the combs the branches are rigidly fixed in a row. The working surface of the branches is made in the form of a site of logarithmic or spiral or cylindrical helix.

EFFECT: invention enables to improve the quality of the ridges soil preparation.

2 cl, 5 dwg