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    • 7. 发明授权
    • Thread reconditioning tool
    • 螺纹修复工具
    • US3956787A
    • 1976-05-18
    • US533082
    • 1974-12-16
    • William H. Crumpacker
    • William H. Crumpacker
    • B23G5/10B23G9/00B23G1/28
    • B23G5/106B23G9/009Y10T408/85915
    • A tool for reconditioning threads on vehicle lug studs. The tool is comprised of a hollow tube slidably receiving a collet chuck. The chuck is operatively connected to a handle that is in turn pivotably mounted to the tube. Pivotal movement of the handle causes responsive movement of the collet chuck between an extended and a retracted position within the tube. The chuck includes internal gripping surfaces having thread cutting serrations thereon. In the extended position, these serrations are separated from one another to enable loose positioning of the collet chuck over a lug stud. The handle is then pivoted to cause corresponding movement of the chuck to the retracted position. As the chuck is retracted into the tube, the gripping surfaces grip the shank between the thread cutting serrations. The tool may then be turned about the axis of the stud to renew or recondition the threads thereon.
    • 一种用于修理车辆凸耳螺柱上的螺纹的工具。 该工具由可滑动地容纳夹头卡盘的中空管构成。 卡盘可操作地连接到手柄,手柄又可枢转地安装到管子上。 手柄的枢轴运动导致夹头卡盘在管内延伸和缩回位置之间的响应运动。 卡盘包括其上具有螺纹切割锯齿的内部夹紧表面。 在延伸位置,这些锯齿彼此分开,以使得夹头卡盘能够在凸耳螺柱上松动定位。 然后将手柄枢转以使卡盘相应的移动到缩回位置。 当卡盘缩回到管中时,抓握表面抓住螺纹切割锯齿之间的柄。 然后可以将工具围绕螺柱的轴线转动以更新或修复其上的螺纹。