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    • 1. 发明授权
    • Releasable hitch
    • 可释放搭便车
    • US5329883A
    • 1994-07-19
    • US181831
    • 1994-01-18
    • James R. White
    • James R. White
    • A01K1/06A01K27/00
    • A01K27/005A01K1/06
    • A releasable hitch having a T-shaped body portion including a horizontal member perpendicularly joined to a vertical member is disclosed. The vertical member has opposing side walls, one of which is bisected by an upwardly sloping channel disposed above the horizontal member. The vertical member additionally comprises a horizontally disposed bore disposed the horizontal member. A bolt is fitted for rotational and longitudinal motion within the horizontally disposed bore. The bolt includes a cylindrical shaft having an externally threaded portion at one of its ends and two semicircular flanges, defining a slot therebetween, at the other end thereof. A C-shaped hook is pivotally secured to the semicircular flanges and has a free end adapted for engagement with the lateral channel. A spring, coiled about the cylindrical shaft and acting upon the bolt, normally biases the free end of the hook within the channel. A nut threadably secured to the externally threaded portion of the cylindrical shaft is provided for adjusting the tensile force required to extract the free end of the hook from the channel.
    • 公开了一种具有垂直连接到垂直构件的水平构件的T形主体部分的可释放搭扣。 垂直构件具有相对的侧壁,其中一个侧壁由设置在水平构件上方的向上倾斜的通道平分。 垂直构件还包括设置在水平构件上的水平布置的孔。 在水平布置的孔内安装螺栓以进行旋转和纵向运动。 螺栓包括在其一端具有外螺纹部分的圆柱形轴和在其另一端处限定其间的狭槽的两个半圆形凸缘。 C形钩枢转地固定到半圆形凸缘上并且具有适于与横向通道接合的自由端。 围绕圆柱形轴卷绕并作用在螺栓上的弹簧通常将钩的自由端偏置在通道内。 提供螺纹固定到圆柱形轴的外螺纹部分的螺母,用于调节从通道提取钩的自由端所需的张力。