Fence
    1.
    发明授权
    Fence 失效
    围栏

    公开(公告)号:US5664905A

    公开(公告)日:1997-09-09

    申请号:US382014

    申请日:1995-04-28

    IPC分类号: E01D19/10 E01F15/04 E01F15/00

    摘要: A crash barrier including a post secured to a base at its lower end, the post having a front face to which one or more rails are secured, the post also having two side faces and a rear face. The rear face of the post is formed with a horizontally extending notch having upper and lower surfaces. When an impact load is transmitted to the front face of the post, the post is caused to distort in a region including the notch so that the upper and lower surfaces of the notch close towards one another prior to any fracture at or adjacent the front face of the post or at or adjacent its lower end.

    摘要翻译: PCT No.PCT / GB93 / 01649 Sec。 371日期:1995年4月28日 102(e)日期1995年4月28日PCT提交1993年8月4日PCT公布。 公开号WO94 / 03678 日期1994年2月17日包括固定在其下端的基座的柱的碰撞障碍物,所述柱具有固定有一个或多个轨道的前表面,所述柱还具有两个侧面和后表面。 柱的后表面形成有具有上表面和下表面的水平延伸的凹口。 当冲击载荷传递到柱的前表面时,使柱在包括凹口的区域中变形,使得凹口的上表面和下表面在前表面之间或附近断裂之前彼此靠近 或在其下端或邻近其下端。