| 摘要 |
This device makes it possible to ensure the security of workers of any trade who operate from the inside of a building, on a wall, through a bay in said wall, while in the vicinity of empty spaces and without damaging the inner or outer existing structures (floor, wall, ceiling), characterized in that it comprises: According to the invention, the device comprises: a rigid structure (7, 10, 12) to be placed opposite the bay; two arms (15) connected to the upper part of the structure (7, 10, 12), intended to bear on the wall, above the bay and on either side thereof, and an anchoring point (16) integral with said structure (7, 10, 12), located at the upper portion thereof.
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