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    • 4. 发明授权
    • Apparatus for removal of vault lids and other heavy covers
    • 用于清除穹顶盖和其他重盖的装置
    • US06202985B1
    • 2001-03-20
    • US09353331
    • 1999-07-14
    • Ian M. ChongRandolph F. MillerJeffrey B. Johnson
    • Ian M. ChongRandolph F. MillerJeffrey B. Johnson
    • B66F300
    • B66F15/00B66F19/005
    • A tool for lifting and removing heavy lids, such as manhole covers and similar articles. The tool includes an elongate lever with a handgrip at the upper end and a pivot head at the lower end. Wheels on the pivot head provide a pivot axis, with a hook being mounted in front of the pivot axis and a footplate being mounted behind the axis. The hook is inserted in an opening in the lid, and the lid is then lifted and removed by pulling back on the lever and stepping down on the footplate. After removal, the lid can be transported by rolling the assembly over the ground using the wheels. The invention thus facilitates removal and installation of heavy lids with minimal strain and potential injury to the operator.
    • 用于提升和移除重盖的工具,例如人孔盖和类似物品。 该工具包括在上端具有手柄的细长杆和在下端的枢轴头。 枢轴头上的轮子提供枢转轴线,其中钩子被安装在枢转轴线的前面,而踏板安装在轴线的后面。 将钩子插入到盖子的开口中,然后通过拉回杠杆并且在踏板上下降来抬起和移除盖子。 拆卸后,可以通过使用车轮将组件滚动到地面上来运输盖子。 因此,本发明有助于移除和安装重型盖,操作者具有最小的应变和潜在的伤害。