Safety installation, has floor arranged for passage of part of set of fixing units that is utilized for fixing of railing from engaged position to unhooked position such that disassembly of railing before floor is prevented

摘要

The installation has a work structure (10) e.g. railing, that comprises a scale and another scale (12), and a lengthened body. An arm (5) is mounted with regard to a level of an end of the body. The arm swivels on the body around an axis that is approximately perpendicular to a longitudinal axis of an upper rail and a lower rail. A floor (13) is arranged for passage of a part of a set of fixing units that is utilized for fixing of the railing from an engaged position to an unhooked position such that disassembly of the railing before the floor is prevented.