COMBINED TOOL FOR PRESOWING TREATMENT OF SOIL Russian patent published in 2016 - IPC A01B49/02 

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to tools for soil preparation to sowing of crops. Tool comprises disk knives and flat cutting working elements installed on stands. Disk knives are secured at post of flat cutting working elements on chisel drum. Drum is made in form of hollow cylinder and acts as gauge wheel. On external surface of drum are fixed in helical lines replaceable tillage teeth in form of regular tetrahedral pyramid. Height of teeth is equal to required depth of soil tillage. Disk knife diameter is larger than that of chisel drum along tops of teeth. Chisel drum is installed with help of stands on leashes with hinges on implement frame, and stands have height adjustment. After chisel drum on leashes are lancet flat cutting working elements, which stand has height adjustment. After lancet flat cutting working tool hinged on guides there is bar-balancer, fixed by tension springs. Tool is made sectional, and sections are installed on frame by means of short and long drivers with overlapping width of coverage.

EFFECT: such design will allow to enhance quality of upper soil layer processing to create mulching surface of agronomical valuable fractions and seed bed at complete destruction of weeds.

1 cl, 3 dwg