(57) A deadening barrier comprising an array of panels (P1,...,Pn), stacked and supported
by fixed uprights (1) spaced from one another. Each panel comprises a first (3,23)
and a second (7,22) containment sheet element having a substantially C-shaped section
and facing each other, between which a layer (6,21) of material with high deadening
coefficient is interposed. The containment element facing the noise source is uniformely
perforated. The layer (6,21) is supported by first containment element (3,23) and
second containment element (7,22) rests against the layer to hold it in position inside
first containment element and support means (11,24) are provided for the second containment
element and means (13,30) for blocking it between the support means and the panel
support uprights.
|

|