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    Tool for retrieving a ladder from an elevated position
    3.
    发明授权
    Tool for retrieving a ladder from an elevated position 失效
    从升高的位置检索梯子的工具

    公开(公告)号：US06457557B1

    公开(公告)日：2002-10-01

    申请号：US09604477

    申请日：2000-06-27

    申请人： Leslie Anderson ,  William Anderson

    发明人： Leslie Anderson ,  William Anderson

    IPC分类号： E06C120

    CPC分类号： E06C5/24 ,  E06C5/00

    摘要： A ladder removal tool designed for use with any ladder that is supported at an elevated position and the method of its use are disclosed. The ladder may be an extension ladder or a large “A” frame ladder. The ladder removal consists of a lifting rod that has hook connected to one end by a pivot joint that allows the hook to rotate with respect to the lifting rod. The lifting rod has a substantially right angle bend adjacent the pivot joint to aid the user in reaching up and “hooking” or engaging the hook with a rung of the ladder to be lowered. The opposite end of the lifting rod has a handle attached thereto. Additionally, the leg of the hook attached to the lifting rod has a stabilizer arm attached thereto. The user reaches up and inserts the hook of the tool around a rung of the ladder while simultaneously allowing the stabilizer arm to extend over and engage the side rail of the ladder. Generally, the user lifts one end of the ladder clear of the rack, swings the ladder away from the truck and lowers the ladder to the ground, while the opposite end rotates around the safety bar on the rack. The user can then use the ladder removal tool to lift the opposite end and lower it to the ground. If desired, the user may use the tool to replace the ladder on the vehicle by simply reversing the order of operation.

    摘要翻译： 公开了一种设计用于在升高位置支撑的任何梯子的梯子拆除工具及其使用方法。 梯子可以是延伸梯或大的“A”框架梯子。 梯子拆卸由一个提升杆组成，该提升杆具有通过枢转接头连接到一端的钩，该枢轴接头允许钩相对于提升杆旋转。 提升杆具有与枢轴接头相邻的基本上直角的弯曲形状，以帮助使用者到达和“钩住”或者将钩与梯子的梯级接合以便降低。 提升杆的相对端具有附接到其上的手柄。 此外，附接到提升杆的钩的腿具有附接到其上的稳定器臂。 用户伸出并将工具的钩子插入梯子的梯子上，同时允许稳定器臂延伸到梯子的侧轨上并与其接合。 一般来说，使用者将梯子的一端从机架上抬起，使梯子从卡车上摆动，使梯子降落到地面上，同时相对端围绕机架上的安全杆旋转。 然后，用户可以使用梯子拆卸工具提起相对端并将其降低到地面。 如果需要，用户可以通过简单地反转操作顺序来使用工具来替换车辆上的梯子。