| 摘要 |
FIELD: agricultural engineering; tools and implements. SUBSTANCE: soil-working tool has elongated blade one end of which is curved to form support flat for attachment of stem, or elongated blade with bracket connected to curved off end with support flat for attachment of stem. Angle of blade bending forms, with cutting edge on front surface of blade, an angle of 80-140 degrees, and cutting edge of blade forms, with plane passing along supporting flat, an angle of 50-90 degrees, and with plane passing along support flat square to first plane, an angle of 0-40 degrees, and with plane passing square to the first two planes mentioned above, an angle of -30 to +20 degrees. Moreover, line of blade bending is arranged at a distance from 0 to 2/3 of blade length from plane passing along support flat, and front surface of blade forms with plane, passing along support flat square to flat, and angle of 60-90 degrees. EFFECT: simplified design of working tool owing to optimum location of blade end bending off line on its front surface and cutting edge of blade relative to stem attachment support flat. 3 cl, 3 dwg |
