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    • 3. 发明授权
    • Blind fastener settable by spring pin
    • 可通过弹簧针固定的盲链
    • US4761105A
    • 1988-08-02
    • US521067
    • 1983-08-08
    • Robert B. Gardner
    • Robert B. Gardner
    • F16B13/04B21J15/04F16B19/10F16B13/06B23P11/00
    • B21J15/041F16B19/1081Y10T29/53709
    • Blind fastener of the type having a tubular outer member with a head at one end and a conical portion at the other end, the conical portion having its apex within the outer member. The conical portion is expanded radially to form a second head on the fastener for securing it in place. The member selected for expanding the conical portion comprises a spring pin. In some embodiments novel apex contacting means are interposed between the spring pin and the apex of the conical portion. The apex contacting means is either formed integrally with one end of the spring pin or as a separate piece disposed between the spring pin and the apex of the conical portion. One important advantage of using a spring pin as the setting means is that its resilience retains it within the outer member despite vibrations, temperature changes, or other conditions which might tend to dislodge the setting means. Other advantages are lighter weight and greater strength at no more cost than previous solid setting pins.
    • 该类型的盲卡扣具有管状外部构件,在一端具有头部,在另一端具有锥形部分,该锥形部分具有位于外部构件内的顶点。 锥形部分径向膨胀以在紧固件上形成第二头部,以将其固定就位。 选择用于膨胀锥形部分的构件包括弹簧销。 在一些实施例中,新颖的三角接触装置插入在弹簧销和锥形部分的顶点之间。 顶点接触装置或者与弹簧销的一端一体地形成,或者形成为设置在弹簧销和锥形部分的顶点之间的分离件。 使用弹簧销作为设定装置的一个重要优点在于,尽管振动,温度变化或可能倾向于移除设定装置的其它条件,其弹性将其保持在外部构件内。 其他优点是重量轻,强度更大,而不会比以前的固定针脚更昂贵。