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    • 60. 发明授权
    • Security washer for security paneling system
    • 安全面板系统的安全垫圈
    • US5401133A
    • 1995-03-28
    • US122392
    • 1993-09-16
    • Richard Kuchler
    • Richard Kuchler
    • E04B9/24F16B23/00F16B35/06
    • F16B23/00E04B9/245Y10S411/91Y10S411/919
    • Panels of a security paneling system are secured to a support member with a plurality of security fastening assemblies consisting of a security fastener and a security washer. The security fastener includes a shank connected to a slotless head including a peripheral edge portion having a special shape. The security fastener is rotatable for installation and removal with a special driving tool including a driver head which has a cavity with an internal shape corresponding to the shape of the peripheral edge portion of the security fastener head and is adapted to fit over and drivingly engage the peripheral edge portion. The security washer includes a central aperture through which the shank of the security fastener extends and a recess concentric with the aperture for receiving the head of the security fastener. The recess has a bottom wall on which the head of the security fastener rests, a depth at least about as deep as the height of the peripheral edge portion of the security fastener, and a minimum inside dimension approximating but slightly greater than the maximum outside dimension of the tool driver head to permit the cavity of the tool to fit over the head and drivingly engage the peripheral edge portion, thereby minimizing access to the head of the security fastener with a tool other than the special driving tool.
    • 安全镶板系统的面板被固定到具有由安全紧固件和安全垫圈组成的多个安全紧固组件的支撑构件。 安全紧固件包括连接到无槽头的柄,该无槽头包括具有特殊形状的周边边缘部分。 安全紧固件可旋转,用于安装和拆卸,该专用驱动工具包括具有与安全紧固件头部的周缘部分的形状对应的内部形状的空腔的驱动头,并且适于安装并驱动地接合 外围边缘部分。 安全垫圈包括中心孔,安全紧固件的柄部延伸穿过该中心孔和与该孔同心的凹槽,用于接收安全紧固件的头部。 凹部具有底壁,安全紧固件的头部固定在该底壁上,深度至少与安全紧固件的周边边缘部分的高度相同的深度,并且最小内部尺寸接近但略大于最大外部尺寸 以允许工具的空腔装配在头部上并且驱动地接合周边边缘部分,由此最小化除了特殊驱动工具之外的工具对安全紧固件的头部的访问。