NOISEPROOF SOUND-ABSORBING PANEL Russian patent published in 2015 - IPC E01F8/00 

FIELD: construction.

SUBSTANCE: invention relates to noiseproof devices used as barriers in industrial buildings, on construction sites, along motor and railway roads in settlements and protected areas. The noiseproof sound-absorbing panel comprises a body, made of two profiles - front and rear covers, two end covers and a filler. Profiles of the front and rear covers are flat sheets of identical shape with longitudinal trapezoidal stiffening ribs and side walls of different walls bent in parallel to each other at the angle to the face plane of the profile. The large wall is made at the angle of 60÷75° and comprises a bent board in the upper part, and the small wall is bent at the angle of 120÷105° and comprises a U-shaped slot in the end part.

EFFECT: increased strength of a panel, reliable fixation of panels, and also in facilitation of assembly.

9 cl, 3 dwg