Drift Shield

Abstract

The present invention relates to a drift shield which is adapted to be fastened to essentially vertical posts ( 6 ) arranged in the ground. The wind shield comprises a plastic sheeting ( 2 ) and at least two longitudinal stiffening strips ( 4 ) which are essentially parallel in relation to the ground and which are joined to the plastic sheeting ( 2 ) along the whole length of the plastic sheeting ( 2 ). Several dynamic wind dampers ( 12 ) in the form of V-shaped cuts are arranged in the plastic sheeting ( 2 ) in such a manner that they allow wind to pass through. The V-shaped cuts of the dynamic wind dampers ( 12 ) are arranged in columns, the dynamic wind dampers in the same column being located vertically straight under each other and the dynamic wind dampers in two adjacent columns being vertically offset in relation to each other.

1 . A drift shield adapted to be fastened to essentially vertical posts ( 6 ) arranged in the ground and comprising a plastic sheeting ( 2 ), wherein
 at least two longitudinal stiffening strips ( 4 ), which are essentially parallel in relation to the ground, are joined to the plastic sheeting ( 2 ) along the whole length of the plastic sheeting ( 2 ),   dynamic wind dampers ( 12 ) in the form of several V-shaped cuts are arranged in the plastic sheeting ( 2 ) in a such a manner that they allow wind to pass through,   the V-shaped cuts of the dynamic wind dampers ( 12 ) are arranged in columns,   the dynamic wind dampers in the same column being located vertically straight under each other, and   the dynamic wind dampers in two adjacent columns being vertically offset in relation to each other.   
     
     
         2 . A drift shield according to  claim 1 , wherein the plastic sheeting ( 2 ) is made of a weatherproof plastic material, such as polyethene, polyethene terephthalate or the like. 
     
     
         3 . A drift shield according to  claim 1 , wherein the number of dynamic wind dampers ( 12 ) in the plastic sheeting ( 2 ) is between 25 and 75 per m 2 , preferably between 40 and 60 per m 2 . 
     
     
         4 . A drift shield according to  claim 1 , wherein the longitudinal stiffening strips ( 4 ) are joined to the plastic sheeting ( 2 ). 
     
     
         5 . A drift shield according to  claim 1 , wherein the drift shield can be rolled up. 
     
     
         6 . A drift shield according to  claim 1 , wherein the drift shield comprises mounting lathes ( 8 ), which are configured to extend along the posts ( 6 ) with the plastic sheeting ( 2 ) arranged between the mounting lathe ( 8 ) and the posts ( 6 ). 
     
     
         7 . A drift shield according to  claim 1 , wherein the width (x) of the V-shaped cuts of the dynamic wind dampers ( 12 ) is between 5 and 15 cm, preferably between 8 and 12 cm. 
     
     
         8 . A drift shield according to  claim 1 , wherein the angle (α) between the two legs ( 12   a ,  12   b ) of the V-shaped cuts of the dynamic wind dampers ( 12 ) is in the interval between 45 and 135°, preferably between 75 and 105°. 
     
     
         9 . A drift shield according to  claim 1 , wherein the plastic sheeting ( 2 ) is transparent. 
     
     
         10 . A drift shield according to  claim 1 , wherein the plastic sheeting ( 2 ) has a thickness in the interval of 0.1 to 1 mm, preferably between 0.2 to 0.6 mm. 
     
     
         11 . A drift shield according to  claim 2 , wherein the number of dynamic wind dampers ( 12 ) in the plastic sheeting ( 2 ) is between 25 and 75 per m 2 , preferably between 40 and 60 per m 2 . 
     
     
         12 . A drift shield according to  claim 11 , wherein the longitudinal stiffening strips ( 4 ) are joined to the plastic sheeting ( 2 ). 
     
     
         13 . A drift shield according to  claim 3 , wherein the longitudinal stiffening strips ( 4 ) are joined to the plastic sheeting ( 2 ). 
     
     
         14 . A drift shield according to  claim 2 , wherein the longitudinal stiffening strips ( 4 ) are joined to the plastic sheeting ( 2 ). 
     
     
         15 . A drift shield according to  claim 4 , wherein the drift shield can be rolled up. 
     
     
         16 . A drift shield according to  claim 13 , wherein the drift shield can be rolled up. 
     
     
         17 . A drift shield according to  claim 12 , wherein the drift shield can be rolled up. 
     
     
         18 . A drift shield according to  claim 11 , wherein the drift shield can be rolled up. 
     
     
         19 . A drift shield according to  claim 4 , wherein the drift shield can be rolled up. 
     
     
         20 . A drift shield according to  claim 3 , wherein the drift shield can be rolled up.