Noise reduction device

Abstract

The invention relates to a noise reduction device ( 1 ) for installation on a traffic route, comprising at least one base element ( 7 ) and at least one wall element ( 8 ), the base element ( 7 ) having a top face ( 9 ) and a bottom face ( 15 ), and the wall element ( 8 ) is disposed on the top face ( 9 ) of the base element ( 7 ). The bottom face ( 15 ) of the base element ( 7 ) is inclined at an angle ( 16 ) relative to the horizontal.

1 . Noise reduction device ( 1 ) for installation on a traffic route, comprising at least one base element ( 7 ) and at least one wall element ( 8 ), the base element ( 7 ) having a top face ( 9 ) and a bottom face ( 15 ), and the wall element ( 8 ) is disposed on the top face ( 9 ) of the base element ( 7 ), wherein the bottom face ( 15 ) of the base element ( 7 ) is inclined at an angle ( 16 ) relative to the horizontal. 
     
     
         2 . Noise reduction device ( 1 ) according to  claim 1 , wherein at least one recess ( 20 ) is provided in the bottom face ( 15 ) of the base element ( 7 ). 
     
     
         3 . Noise reduction device ( 1 ) according to  claim 2 , wherein the at least one recess ( 20 ) extends from a first longitudinal end face ( 10 ) to a second longitudinal end face ( 13 ) of the base element ( 7 ). 
     
     
         4 . Noise reduction device ( 1 ) according to  claim 3 , wherein the second longitudinal end face ( 13 ) of the base element ( 7 ) extends obliquely with respect to the first longitudinal end face ( 10 ) in at least certain regions. 
     
     
         5 . Noise reduction device ( 1 ) according to  claim 1 , wherein at least one duct ( 21 ) is provided in the base element ( 7 ) which is accessible from the top face ( 9 ) of the base element ( 7 ). 
     
     
         6 . Noise reduction device ( 1 ) according to  claim 1 , wherein the wall element ( 8 ) is retained by at least one support element, and the support element is height-adjustable and/or can be pivoted towards the horizontal. 
     
     
         7 . Noise reduction device ( 1 ) according to  claim 1 , wherein at least one base element projection  28  is disposed on the rear longitudinal end face  13  of the base element  7 . 
     
     
         8 . Track system ( 2 ) with rails and at least one noise reduction device ( 1 ) disposed next to the rails and comprising at least one base element ( 7 ) and at least one wall element ( 8 ), and the rails are disposed on a ballast bed ( 24 ) by means of crossties, and the ballast bed is disposed on a sub-structure ( 17 ), wherein the noise reduction device ( 1 ) is as defined in  claim 1  and is disposed on the sub-structure ( 17 ). 
     
     
         9 . Track system ( 2 ) according to  claim 8 , wherein the ballast bed ( 24 ) extends as far as the wall element ( 8 ) of the noise reduction device ( 1 ), in particular extends at least approximately horizontally with respect to the wall element ( 8 ).