DISK-TYPE TILLAGE TOOL Russian patent published in 2007 - IPC A01B21/08 A01B49/02 

FIELD: agricultural engineering.

SUBSTANCE: disk-type tillage tool has frame provided with longitudinal and transverse bars and adapted for connection to pulling means. Tines with convex-concave disks are fixed on front side of bars, throughout the entire width so as to define paired rows. Disks are positioned for rotation and adjusting an angle of attack. Pins of disks are inclined at an acute angle to ground plane which is closer to horizontal plane so that convex side is facing ground surface. In each subsequent row, disks are offset transverse to disks of previous row by value equal to quotient of division of distance between disks by number of rows. In first paired row, disks of first row are oriented in one direction and disks of second row - in opposite direction, i.e., concave or convex sides, respectively, in opposite directions. Tillage tool is additionally provided with mechanism for adjusting tillage depth of front row disks. In rows following first paired rows, disks are oriented respectively to the same side as in first paired row of disks. Angle of attack of disks in rows following first paired row exceeds angle of attack of disks in first paired row.

EFFECT: wider operational capabilities of tillage tool and improved quality of soil tillage.

9 cl, 5 dwg