Fastening safety barrier to manhole cover - using guide rail for holder, fastened to barrier post, with holder, and fastened to bar mounted on post

摘要

The fastening device consists of a claw, fastened to bar. The claw engages in holes in the manhole cover, and the bar is mounted on a post of the safety barrier. A guide rail (19) for a holder is also fastened to the post. The holder is fastened to the end of the bar (16) opposite to the claw (11). The guide rail is formed by a long plate, which is enclosed by a holder shaped as a C-shaped rail section. Alternately, it may have a C-profile, with a plate-shaped holder (18) displaceable on it. USE/ADVANTAGE - Device for fastening safety barrier on manhole cover can be pushed up or down simply, without extra work.