PLOUGHSHARE Russian patent published in 2011 - IPC A01C7/20 

FIELD: agriculture.

SUBSTANCE: ploughshare comprises centre hoe with installed stand and hollow seed drill tube, roller. Hollow seed drill tube is rigidly connected to stand of centre hoe, lower part of seed drill tube is directed to the side opposite to direction of centre hoe motion. Centre hoe is equipped with flat disks installed on brackets symmetrically at both lateral sides of centre hoe with the possibilities to adjust angle of attack of flat disks and variation of their installation height. Roller is arranged in the form of two truncated cones. Roller is installed on brackets with hinged joints and vertical rod, with the possibilities to control distance between truncated cones and position of roller in vertical plane.

EFFECT: improved quality of earth ridge compaction with density specified by agrotechnical requirements.

3 dwg