| 摘要 |
A tillage sweep includes an elongated nose portion having forward cutti ng edges which are straight and diverge at an angle of approximately 45 degrees from a leading point. The top of the nose viewed from the side is straight and angl es upwardly at an angle of approximately eleven degrees from the planar bottom surface to a juncture with a stem or connecting portion which forms an angle of about 46 degrees with the plane of the bottom surface. The sweep includes outer wing portions with leading cutting edges which are straight and which diverg e at an angle of approximately 67 degrees thereby forming an angle of about 11 degre es with the respective forward cutting edges. The overall length of the sweep i s greater than the width.
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