发明名称 Lanyard support for metal building roof
摘要 This invention is directed to a device for supporting a load on a standing seam roof. A platform is provided for spanning the distance between two adjacent roof seams and camming means are mounted on opposite sides of the platform means for engaging the parallel roof seams. Each of the camming means is provided with backup means disposed on the opposite side of the seam from the camming means and disposed to abut against the roof seam. This provides a backup for the camming means when the latter engages the roof seam.
申请公布号 US4334662(A) 申请公布日期 1982.06.15
申请号 US19800184781 申请日期 1980.09.05
申请人 TEMPEL-CALLISON COMPANY 发明人 DAVIS, THOMAS R.;BOSTIAN, CHARLES D.
分类号 E04G3/26;E04G21/32;(IPC1-7):E04G3/12 主分类号 E04G3/26
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