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    One-piece, open-end wrenching head with roughened jaws
    1.
    发明授权
    One-piece, open-end wrenching head with roughened jaws 失效
    一体式开口钳头，粗糙的钳口

    公开(公告)号：US5148726A

    公开(公告)日：1992-09-22

    申请号：US799392

    申请日：1991-11-27

    申请人： David A. Huebschen ,  William T. Pagac ,  Frank Mikic ,  Thomas S. Severson ,  Douglas M. Sorbie

    发明人： David A. Huebschen ,  William T. Pagac ,  Frank Mikic ,  Thomas S. Severson ,  Douglas M. Sorbie

    IPC分类号： B25B13/00 ,  B25B13/08

    CPC分类号： B25B13/00 ,  B25B13/08

    摘要： The open-end wrenching head includes two jaws and a throat interconnecting the jaws. The jaws include planar jaw driving surfaces each with a roughened region thereon adjacent to the throat and an unroughened region adjacent to the outermost end of the jaw driving surface, each of the roughened and unroughened regions being constructed and arranged to engage a portion of a selected side of a fastener. The throat may include either an arcuate surface or two planar throat driving surfaces. Each of the roughened regions has a coefficient of friction substantially greater than that of the unroughened regions and may be formed by deposition of an abrasive material by any of a number of processes or by deformation of the jaw driving surface by any of a number of processes.

    摘要翻译： 开口扳手头包括两个钳口和连接钳口的喉部。 钳口包括平面钳口驱动表面，每个平面钳口驱动表面在其上邻近喉部具有粗糙区域，以及邻近钳口驱动表面的最外端的未增韧区域，每个粗糙化区域和未粗化区域被构造和布置成接合所选择的一部分 紧固件的一侧。 喉部可以包括弓形表面或两个平坦的喉部驱动表面。 每个粗糙区域的摩擦系数基本上大于未粗化区域的摩擦系数，并且可以通过多种工艺中的任何一种沉积研磨材料或通过多种工艺中的任何一种来形成钳口驱动表面 。