CULTIVATOR WORKING TOOL Russian patent published in 1998 - IPC

FIELD: agricultural engineering, in particular, irrigated agriculture. SUBSTANCE: working tool has tine and flat hoe with single-sided blade extending along outer edge. Working tool is provided with flexible member joined with tine tip and flat hoe wings. Tine, flat hoe and flexible member are made from materials possessing different qualities. Tip of S-shaped spring-biased tine has recess for receiving flexible member. This recess is made in the form of U-shaped projection with pair of parallel slots and is further made by deformation of basic material in the direction away from lower edge of tine. Flexible member is flat and its front part is provided with cutting edge on single-sided blade. Opposite recesses are disposed on wings of tine between front and rear edges. Flexible member in recesses of S-shaped tine and wings of flat hoe is blocked by retainers made in the form of hemispherical projections and directed into process openings of flexible member. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 14 cl, 6 dwg