| 摘要 |
A grubbing tool is provided for attachment to an excavator or other earth working machine, of the type having extensions from the boom such as a dipper stick and dipper stick linkage. The tool is moved arcuately and vertically to pull rooted brush having substantially sized taproots. The excavator's power is optimized at the cutting blade by the attachment of the dipper stick and dipper stick linkage near the top of the tool, as well as, the sizing and the configuration of the two primary side members. The cutting blade and both side members have both front and rear cutting edges, allowing a fore and aft pattern of approaching brush which optimizes tool effectiveness. The side members have substantially straight front and rear edges, which can be positioned flush with the disturbed surface following brush removal, providing a leveling function as the tool is moved laterally. This flush positioning, in both directions, is made possible as a result of the optimal points of connection of the tool to the dipper stick and dipper stick linkage. The optimized connection points and compactness of the side members allow bracing between the side members to be placed near the top of the tool leaving the inside of the tool unobstructed, thereby adding increased operator visibility between the side members.
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