SPIRAL TRAIL-ROLLER Russian patent published in 2012 - IPC A01B29/04 

FIELD: agriculture.

SUBSTANCE: trail-roller comprises levers with bearing units, a drum pivotally mounted by means of bearings between the levers, and a roller. The roller is made of spirals with left and right winding having a wedge-shaped work surface. The spirals on the sides are made with outer and inner rings which are rigidly connected to each other and placed on the drum between the levers freely. The surface of the drum is rubber-coated.

EFFECT: constructive implementation enables to improve the quality of tillage and technological reliability of the roller.

2 cl, 5 dwg