Noise silencer, particularly for motor vehicles and process for producing thereof

摘要

A sound absorber (A), especially for motor vehicles, comprising a layer ( 4 ) of absorption material, such as open-pored or optionally closed pored foamed material or a wood fiber composite, and a top layer ( 5 ) . The aim of the invention is to produce an absorber in such a way that said absorber is easy to produce and assemble and functions well. According to the invention, the top layer ( 5 ) for leading through a loom of cables ( 8 ) or the like is provided with a tubular recess ( 40 ) for leading through a loom of cables. Said recess ( 4 ) is provided with groove-like undercuts ( 42 ) on the outside.