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    • 10. 发明申请
    • Post Driver
    • 邮政司机
    • US20090008113A1
    • 2009-01-08
    • US12132137
    • 2008-06-03
    • Garry LyonsJason YoleDarren Macgill
    • Garry LyonsJason YoleDarren Macgill
    • B25D17/32E02D7/08
    • E02D7/08
    • A post driver has a housing of tubular form extending substantially vertically, and weight telescopically mounted within the housing for movement between an extended position raised above the housing and a lowered position. A strike pad projects from the weight to drive a post into a hole drilled in the ground. A fluid cylinder mounted within the housing extends from a lower part of the housing to the interior of the weight and is operable to raise the weight to its extended position whereby the weight can then fall to a lower position at which its strike pad engages the upper end of the post.
    • 后驱动器具有基本上垂直延伸的管状形状的壳体,并且重量可伸缩地安装在壳体内,用于在升高到壳体上方的伸出位置和降低位置之间移动。 一个罢工垫从重量开始,将一个柱子推到一个钻在地上的孔中。 安装在壳体中的流体缸从壳体的下部延伸到重物的内部,并且可操作以将重物升高到其延伸位置,由此重物可以落到下部位置,在该下部位置,其撞击垫接合上部 帖子结尾。