CULTIVATOR Russian patent published in 1997 - IPC

FIELD: agricultural engineering, in particular, tillage of fallow weedy soil. SUBSTANCE: cultivator has transverse bar with carrier wheels, hitching device, sections pivotally connected with transverse bar and having replaceable working tools and feeler wheels, mechanism for moving sections to transport position and mechanism for changing working tool penetration depth. Replaceable working tool has A-hoe and shank provided with auxiliary blade mounted for rotation on horizontal shaft in vertical slot of shank. Auxiliary blades of working tools in each section are connected with drive mechanism. Each blade is further provided with individual return mechanism. EFFECT: increased efficiency, simplified construction and improved quality of soil. 20 cl, 9 dwg