EARTH TILLAGE TOOL Russian patent published in 2004 - IPC

FIELD: agricultural engineering, in particular, interrow tillage of soil.

SUBSTANCE: tillage tool has frame, rotavator disk mounted on vertical shaft and including rectangular section guides and holders mounted on guides for displacement in horizontal plane. Stems of square section are fixed in holders for displacement in vertical plane. Vertical stem pins are offset relative to axes of symmetry of cutter disks by means of holders. Active members with vertical and horizontal working faces are mounted in lower parts of stems. Forks with rollers are adjustably positioned in upper part of stems, with axes of symmetry of rollers extending through vertical axis of cutter disk. Rollers follow working surface of contour washer having four sectors with two projections in longitudinal plane and two slots in transverse plane. Rollers are contacting permanently with contour washer by means of compression coil springs and adjusting washers.

EFFECT: increased efficiency in interrow soil tillage, reduced width of row protective zones and provision for changing of mellowing depth in the width of spacing strip.

2 dwg