发明名称 Safety fence assembly for use in a building under construction
摘要 The disclosure herein describes a safety fence assembly for mounting to a floor of a building under construction; it comprises guard rail structures, each formed of at least an upper rail and of a pair of uprights. Hinge elements are mounted to the opposite ends of the upper rail, at least one of the hinge elements being slidably mounted to one end of the rail. Each hinge element comprises a vertically extending pivot member which is adapted to be pivotally mounted to a post and a horizontally extending support member which includes an opening therethrough to receive the pivot member of an adjacently disposed guard rail structure. In one form of the invention, both hinge elements are movable along the upper rail while, in another form, one hinge element is fixed while the other is movable.
申请公布号 US4787475(A) 申请公布日期 1988.11.29
申请号 US19870140028 申请日期 1987.12.31
申请人 INSTIT DE RECHERCHE EN SANTE ET EN SECURITE DU TRAVAIL DU QUEBEC 发明人 ARTEAU, JEAN;BERTRAND, RAYMOND
分类号 E04G21/32;(IPC1-7):E04G21/32;E04G1/26 主分类号 E04G21/32
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