Rail track having enhanced absorption of vibration and sound

Abstract

A rail track comprising at least two parallel rails supported by a non-compressible base body, wherein the base body is provided with a channel-like recess for receiving the rail such that the running surface of the head of the rail lies free, wherein the bottom of the channel-like recess is provided with a first layer of yielding material which extends under the bearing surface of the foot of the rail, and wherein the surface between the running surface and the bearing surface of the rail is covered with a second layer of yielding material, so that an improved vibration damping and sound reduction are obtained.

1 . Rail track comprising at least two parallel rails supported by a non-compressible base body, characterized in that the base body is provided with a channel-like recess for receiving the rail such that the running surface of the head of the rail lies free, wherein the bottom of the channel-like recess is provided with a first layer of yielding material which extends under the bearing surface of the foot of the rail, and wherein the surface between the running surface and the bearing surface of the rail is covered with a second layer of yielding material.  
     
     
         2 . Rail track as claimed in    claim 1   , characterized in that the space between the second layer and the channel-like recess is filled with a filler body of non-compressible material.  
     
     
         3 . Rail track as claimed in    claim 1    or    2   , characterized in that the second layer has a greater stiffness than the first layer.  
     
     
         4 . Rail track as claimed in any of the foregoing claims, characterized in that the second layer has on the one side of the rail a different stiffness than on the other side.  
     
     
         5 . Rail track as claimed in any of the foregoing claims, characterized in that the cross-section of the rail is asymmetrical.  
     
     
         6 . Rail track as claimed in any of the foregoing claims, characterized in that the first and/or second layer of yielding material is interrupted.  
     
     
         7 . Rail track as claimed in any of the foregoing claims, characterized in that the upper side of the base body is provided with a layer of sound-absorbing material.