Safety device preventing things from falling through an opening which has been uncovered by removing at least one cover for closing the said opening, and openings and covers in which such a device is combined

摘要

The safety device is characterised in that it comprises: - on the one hand, two rigid panels 10, 110, their width 1 corresponding to the height of the barrier and their length L corresponding substantially to that of the edges on opposite sides of the opening 3 along which the said panels are mounted by one of their longitudinal edges 11, 111 using means of articulation 12, 112 around an axis parallel to the corresponding edges 8, 108 of the opening, and - on the other hand, two panels, which are flexible at least locally, 13, 113, their width corresponding to the height of the barrier and their length corresponding at least substantially to the distance between the rigid panels in question when they are in the use position and to which the said flexible panels are attached by their ends using means of fixing 14, 114. The said flexible panels are also provided with means 15, 115 preventing their extension beyond their length as defined above. <IMAGE>