TILLAGE TOOL Russian patent published in 1999 - IPC

FIELD: agriculture. SUBSTANCE: tillage tool has main frame with transverse and longitudinal parts. Frame is pivotally connected with U-shaped spring-biased frame. Vertical angle brace is rigidly connected to transverse part of main frame. Vertical tine is rigidly connected with its one end to longitudinal part of main frame. Working tool and bracket are rigidly attached to other end of tine. One end of bracket is rigidly connected to transverse part of main frame and other end is joined with adjusting screw. Disk is rigidly attached to adjusting screw end so as to come into contact with U-shaped spring-biased frame. Such construction allows constant tilling depth of working tool to be automatically maintained, when soil draft is varied. EFFECT: increased efficiency and simplified construction. 2 dwg