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    • 4. 发明授权
    • Tree jack
    • 树杰克
    • US07415998B2
    • 2008-08-26
    • US11307275
    • 2006-01-30
    • Charles J. Freeman
    • Charles J. Freeman
    • A01G23/04A01G23/06
    • A01G23/062
    • A novel lifting tool for lifting rooted trees and the like from the ground. There is: at least one main boom; at least one outrigger coupled to a first end of the main boom; at least one mounting member coupled to a second end of the main boom, the mounting member adapted to couple the main boom to a lifting force machine; and at least one set of tongs coupled to the main boom, the tongs adapted to clamp a tree or the like to be lifted around at least a portion of the periphery of the tree or the like, and lift the tree or the like when the main boom is lifted. The tongs are located along the main boom at a position to multiply the force input by the lifting force machine. In the preferred embodiment, the lifting force machine is subsumed by a skid loader.
    • 一种用于从地面上起根树木等的新型起重工具。 有:至少一个主要繁荣; 至少一个支架,其联接到主起重臂的第一端; 所述至少一个安装构件联接到所述主起重臂的第二端,所述安装构件适于将所述主起重臂联接到提升力机器; 以及联接到主起重臂的至少一组钳子,钳子适于夹紧树或类似物以围绕树等的至少一部分被提升,并且当树等被提升时,提起树等 主升高了。 钳子沿着主起重臂位于乘以提升力机械输入的力的位置。 在优选实施例中,提升力机器由滑移装载机收纳。