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    • 2. 发明授权
    • Jacking screw
    • 顶起螺丝
    • US6033168A
    • 2000-03-07
    • US167421
    • 1998-10-06
    • Albert L. Creely, IIIMark Dobson
    • Albert L. Creely, IIIMark Dobson
    • F16B5/02F16B41/00F16B39/00
    • F16B5/0208F16B41/002Y10S411/999
    • A jacking screw for attaching a first panel to a second panel which provides a force in the axial direction of the screw when the screw rotates in a first direction to jack the first panel down to the second panel and which provides a force in the axial direction of the screw with respect to the panel when the screw is rotated in the opposite direction to pry the first panel away from the second panel. The jacking screw has a screw, a ferrule surrounding and coaxial to the screw shaft, and a knob. The first end of the ferrule is attachable to a panel and the second end has an outwardly protruding annular step. The knob is attached to the head of the screw and Ahas a downwardly extending generally cylindrical portion, coaxial to the screw shaft and the ferrule and the downwardly extending cylindrical portion secures the knob to the ferrule allowing for rotational movement of the knob with respect to the ferrule but allowing substantially no axial movement of the knob with respect to the ferrule.
    • 一种用于将第一面板附接到第二面板的顶起螺钉,当所述螺杆沿第一方向旋转时,所述第一面板在所述螺钉的轴向方向上提供力,以将所述第一面板向下插入所述第二面板,并且在所述轴向方向上提供力 当螺钉沿相反方向旋转以将第一面板从第二面板上撬出时,螺钉相对于面板。 顶起螺丝具有螺钉,环绕并与螺杆轴同轴的套圈和旋钮。 套圈的第一端可附接到面板上,第二端具有向外突出的环形台阶。 旋钮连接到螺钉的头部,并且Ahas是与螺钉轴和套圈同轴的向下延伸的大致圆柱形部分,并且向下延伸的圆柱形部分将旋钮固定到套圈,允许旋钮相对于旋钮移动 套圈,但基本上不允许旋钮相对于套圈的轴向移动。