| 摘要 |
<p>PP.31062/CA/A A cultivating implement comprising: a frame mounted for movement in a direction of travel; and at least one soil working tool mounted on said frame, said tool including a blade having a portion with a leading and trailing edge which portion in operation, extends sidewardly and downwardly into the soil in a plane substantially parallel to the direction of travel edgewise through the soil and inclined at an acute angle to the vertical so as to lift soil, without inversion, lying above the blade; said tool having at a lower end of said inclined blade portion a shoe member with an upwardly and rearwardly inclined upper surface at a leading end thereof, and an upright and rearwardly extending side surface, said side surface being substantially parallel to the direction of travel and comprising bearing surface means for resisting lateral forces on the tool due to the lifting action of the blade on the soil</p> |
