PICKUP DISK HARROW Russian patent published in 1998 - IPC

FIELD: agricultural engineering. SUBSTANCE: wide disk harrow has central frame with members for attaching it to tractor and sections formed as disks with devices for regulating disk angle. Disk sections have inner and outer parts connected one with another through vertical pivot joints and flexible members allowing outer members to be rotated relative to inner members in forward direction. Inner parts are mounted on auxiliary frames connected with central frame by pivot joints whose hinges are positioned in horizontal planes and oriented in direction of advancement of harrow. EFFECT: increased efficiency and improved strength by increased longitudinal stability of connection with tractor. 2 dwg