TOOL FOR SURFACE TREATMENT OF SOIL Russian patent published in 2013 - IPC A01B21/04 

FIELD: agriculture.

SUBSTANCE: tool comprises a frame, and drums with teeth successively mounted on it with the ability to rotate and connected with each other by chain gear. The frame rests on the wheels with the ability to move them in the vertical direction, providing the change in depth of processing. Each drum is made in the form of a rigid structure consisting of a sprocket shaft. The number of teeth on the shaft sprocket of the front drum is more than the number of teeth of the rear drum. Two disks are attached to the shaft, between which the planks with spring teeth are located. Each plank is attached to the disks so that the ends of the spring teeth are arranged in helical lines, which direction on the front and rear drums is different. The teeth are attached so that at the moment they enter the soil they are located at right angle to the direction of movement of the machine.

EFFECT: constructive implementation enables to improve the quality of surface treatment of the soil, to reduce the number of passes on the field and provide a complete combing-out the weeds.