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    • 7. 发明授权
    • 강성 차등형 가드레일
    • 강성차등형가드레일
    • KR100453209B1
    • 2004-10-20
    • KR1020030004327
    • 2003-01-22
    • 동아에스텍 주식회사남양건설(주)주식회사 동아기술공사
    • 한상원
    • E01F15/04
    • E01F15/0438E01F15/0423
    • Disclosed herein is a differential strength guard rail. The guard rail includes a post (1). A spacer (3) is provided at the post. A thin lower rail (2a) is fastened at its fastening part (21a) to a lower portion of the spacer by means of a first bolt (4). A thick upper rail (2b) is fastened at its fastening part (21b) to an upper portion of the spacer by means of a second bolt (4). In this case, a first extension (22a) extends along an upper end of the lower rail and a second extension (22b) extends along a lower end of the upper rail such that the first extension overlaps an outer surface of the second extension. The overlapped first and second extensions are fastened to each other by means of a fastening means (5).
    • 这里公开了一种不同强度的护栏。 护栏包括支柱(1)。 柱子上有垫片(3)。 薄的下轨道(2a)通过第一螺栓(4)在其紧固部分(21a)处紧固到间隔件的下部。 厚的上轨道(2b)通过第二螺栓(4)在其紧固部分(21b)处紧固到间隔件的上部。 在这种情况下,第一延伸部(22a)沿着下轨道的上端延伸,并且第二延伸部(22b)沿着上轨道的下端延伸,使得第一延伸部重叠第二延伸部的外表面。 重叠的第一和第二延伸部借助于紧固装置(5)彼此紧固。