发明名称 WEEDING METHOD AND APPARATUS
摘要 In orchards or fields of grape vines, weeding in inter-plant spaces may be performed with a mechanical weeder. The weeder may include a frame configured to be propelled by a motorized vehicle. A rotatable weeder unit may be pivotally connected to a pivot arm attached to the frame and a spring may be connected to hold the rotatable weeder unit in a nominal pivotal position relative to the frame responsively to a force exerted by the spring. When encountering a producing plant, the weeder unit may deflect away from the plant thereby precluding damage to the plant.
申请公布号 US2011278030(A1) 申请公布日期 2011.11.17
申请号 US201113108197 申请日期 2011.05.16
申请人 KOHLER DAVID 发明人 KOHLER DAVID
分类号 A01B39/18;A01B39/08;A01B79/00 主分类号 A01B39/18
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