PLASTIC DRAINAGE GUTTER Russian patent published in 2015 - IPC E01C11/22 

FIELD: construction.

SUBSTANCE: plastic drainage gutter 1 has a U-shaped profile in the cross section. In the upper part of lateral sides of the gutter 1 there are longitudinal horizontal bearing ledges 2. At the first end face 3 of the drainage gutter 1 a docking ledge 4 is made. In the upper part on both lateral sides of the external surface of the docking ledge 4 longitudinal vertical thrust ledges 5 are made. In the lower part of the external surface of the docking ledge 4 a longitudinally basing ledge 6 is made. At the second end face 7 of the drainage gutter 1 a docking ledge 8 is made. In the upper part of the lateral sides of the docking ledge 8 holes 9 for the longitudinally basing ledges 5 of the docking ledge 4 of the first end face 3 are made. In the lower part of the docking ledge 8 a hole 10 for the longitudinally basing ledge 6 of the docking ledge 4 of the first end face 3 is made. Besides, at the second end face 7 of the gutter 1 in the top part of the docking ledge 8 bearing surfaces 11 are made under the longitudinal horizontal bearing ledges 2 on which a cross stopper 12 is located. At the first end face 3 of the gutter 1 in the horizontal longitudinal bearing ledges 2 through longitudinal grooves 13 are made under the cross stoppers 12. The longitudinal vertical thrust ledges 5 are located on elastic latches. The elastic latches are formed by U-shaped 14 or L-shaped 15 cuts in the sidewall of the docking ledge 4 of the first end face 3.

EFFECT: invention addresses the task of improvement of the reliability of the end face connection of the plastic drainage gutters in all planes: longitudinal, vertical and cross, and, as a result, ensuring the tightness of joints of the connected drainage gutters in use.

9 cl, 10 dwg