MANUAL DEVICE FOR SOIL TREATMENT BY L.N. NEROVNY Russian patent published in 2014 - IPC A01B1/00 A01B1/06 

FIELD: agriculture.

SUBSTANCE: manual device for soil treatment comprises a holder with the handle attached to the holder, which is attached to at least one tooth. The tooth comprises a base formed with a bend, and a working part that has a radially convex surface and a cutting edge. The working part of the tooth has a zone of rigidity located along its middle, where it has the greatest thickness which decreases towards the edges of the cutting edge of the tooth. The zone of rigidity is located from the edge of the lower cutting edge of the tooth at a distance of 5-15 mm. The radius of the curved surface of the working part of the tooth is R=(0.4-0.8) H height of the tooth to the bend of the base. The angle of bend of the tooth base is at least 100°.

EFFECT: increased effectiveness of soil treatment on grounds of different density, increased lifetime of the device and reduced energy consumption of human manual soil treatment while improving the quality of works.

2 cl, 5 dwg