DIGGING TOOL FOR ROOT HARVESTER Russian patent published in 1999 - IPC

FIELD: agricultural engineering, in particular, digging equipment for potato and other root harvesting machines. SUBSTANCE: digging tool has rotating cylindrical supporting rolls 2 formed as two rims 3 connected one with another and with hub by plates-spokes 9. Curved fingers 5 are arranged in rows circumferentially of rims 3. Fingers 5 of each row of fingers are rigidly connected one with another in sections rotating about supporting rods 4 fixed in rims 3 of rolls 2. Sections are provided with pushers having many-sided rollers 7 cooperating with cams 6 fixed on shaft of supporting rolls 2 to impart required vibratory motion to fingers 5. Such construction allows digging tool to be used for working on heavy soils. EFFECT: increased efficiency and improved quality of dug root, enhanced reliability in operation and prolonged service life. 2 dwg