WIDE SURFACE CULTIVATION UNIT Russian patent published in 2003 - IPC

FIELD: agricultural engineering. SUBSTANCE: cultivation unit has hitch, central and side frames with wheels and carriages, and operating tool sections. Frame bars make upper links of four-link mechanism. Tooth-shaped operating tools are arranged in rows and fixed on lower link of four-link mechanism. Operating part of tooth-shaped tools is inclined at an angle of 35 deg from vertical-longitudinal plane. Operating parts in each row are inclined in opposite direction with respect to operating parts in previous row. Lower link of four-link mechanism is formed by carrier system of section tools. Side links are equipped with springs and protective housing. EFFECT: improved quality of soil cultivation. 6 dwg