EMBEDDED ITEM FOR CONCRETE STORM-WATER TRAY Russian patent published in 2015 - IPC E01C11/22 

FIELD: construction.

SUBSTANCE: embedded item 2 is mostly used for concrete storm-water tray, which in cross-section has the rectangular profile of outer surface and U-shaped profile of inner surface, together forming horizontal longitudinal supporting surfaces in the top part of the tray, on which U-shaped holders 13 made of metal profile are located. Embedded item 2 has box 3 with cavity 4 intended for arrangement of nut of the pinch bolt and with hole 5 in the upper wall of the box for the pinch bolt. Embedded item 2 has elongated flat anchoring elements 6 with holes 7, oriented by the flat side transversely to the side walls of the concrete storm-water tray. Box 3 is formed by means of bending of elements of the middle part of U-shaped plate, namely of the upper part 8 and lower part 9 relative to the rear part 10. Lateral parts of U-shaped plate form lateral walls 11 of the box 3 and flat elongated anchoring elements 6 with holes 7 by means of bending. Box 3 is opened from the inner lateral side of storm-water tray. Hole 5 in the upper wall 8 of box 3 can be provided with neck 12 for the response hole of holder 13 of the storm-water tray. Protrusions 14 are advisable to be made on the lateral sides of plate 11. The hole 15 for fixing protrusion 16 made in the holder 13 of storm-water tray can be made in the rear wall 10 of the box 3. Fixing protrusions 17 for holes 18, made in the lateral longitudinal side of holder 13 of storm-water tray can be made on the front edges of lateral walls of the box 3. Recesses 19 with inclination downward of the upper contour 20 under the bend of lateral longitudinal side of holder 13 of storm-water tray can be made on the front edges of lateral walls of the box 3.

EFFECT: increase of strength properties of concrete storm-water tray, improved quality of manufactured concrete storm-water trays with different wall thicknesses.

7 cl, 11 dwg