Protective grating

摘要

The physical protection grill has a frame arranged in building opening, where disks (5-12) are provided in the frame. The disks are arranged parallel to each other or over one another or adjacent to each other. The disks are formed flat, or curved or angled. The disks have drill holes (14,14') for leading-in tubes (20) or rods. The holes are aligned opposite to the adjacent disks. The tubes or rods are arranged perpendicular to the disks and are provided partially with tension anchor (15). The tube is filled with ceramic material.