| 摘要 |
FIELD: agricultural engineering; working tools for cultivation of soil plants. SUBSTANCE: working tool has leg and hoe with cutting blades on front parts made to logarithmic curves. Cutting blade on front portion of hoe is formed by series alternating curvilinear chipping and cutting members. Chipping members have cutting edges, are made dominant above cutting member and are displaced forward relative to cutting members. Each chipping member is formed by intersecting portions of vertical logarithmic surfaces truncated by horizontal surface combined with rear flat of hoe and conical surface directed with convex downwards. Cutting member is formed on extension of chipping member by intersection of conical surface and rear flat of hoe. Cutting blade of front portion of leg is formed by alignment of rear flats along axis of symmetry of hoe cutting blades. EFFECT: enlarged operating capabilities. 2 cl, 7 dwg |
