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    • 9. 发明授权
    • Tack fastener
    • 紧固件
    • US6056283A
    • 2000-05-02
    • US246068
    • 1999-02-08
    • Roger A. GageLaurence N. HazlehurstMilton R. Jack
    • Roger A. GageLaurence N. HazlehurstMilton R. Jack
    • B25B31/00B23Q3/00
    • B25B31/005
    • A tack fastener temporarily holds two or more parts together. An elongate tubular body of the tack fastener includes a longitudinal center cavity formed therein along a longitudinal center axis. A threaded hub is provided at a first end of the body and a plurality of tangs at a second end. Each of the tangs includes an enlarged tip having an inner shoulder that lies orthogonal to the longitudinal center axis. Each of the tangs has an outer surface which tapers inwardly toward the longitudinal axis in a direction toward the tip. A compression nut is mounted on the threaded hub. A stem is slidably mounted in the longitudinal center cavity. The stem includes a cone-shaped spreader with a distal end and having a contact surface with a gradually enlarging diameter in a direction toward the distal end. The spreader is movable between a position out of alignment with and a position in alignment with the enlarged tips. When in the position in alignment with the enlarged tips, the spreader spreads the tips outwardly equidistant from the longitudinal center axis.
    • 紧固件将两个或更多个部件暂时保持在一起。 钉紧件的细长管状体包括沿纵向中心轴线形成在其中的纵向中心腔。 螺纹轮毂设置在主体的第一端,并且在第二端处设置多个柄脚。 每个柄脚包括具有垂直于纵向中心轴线的内肩部的扩大尖端。 每个柄脚具有朝向尖端的方向朝向纵向轴线向内渐缩的外表面。 压紧螺母安装在螺纹轮毂上。 杆可滑动地安装在纵向中心腔中。 该杆包括具有远端并具有朝向远端的方向上逐渐扩大的直径的接触表面的锥形扩张器。 吊具可以在与对准的位置和与扩大的尖端对准的位置之间移动。 当处于与扩大的尖端对准的位置时,吊具将尖端从纵向中心轴线等距离地扩展。