| 摘要 |
A tine for mounting on a rotatable shaft of soil aeration and cultivation equipment, comprising: mounting means at an attachment end of the tine; a tip at a grou nd- engaging end of the tine opposite the attachment end; leading and trailing convert curvilinear edges disposed opposite each other and converging toward the attachment end and th e tip; and bevelled sections on each of the leading and trailing convex curvilinear edges. The unique shape of the tine has been found to create a wider range of soil disturbance than is the case with conventional straight-edge tines, requires less material to manufacture , and penetrates the ground surface more easily than conventional straightedge tines due to t he convex leading edge.
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