EXTERIOR MATERIAL FOR VEHICLE, SOUND ABSORPTION STRUCTURE FOR VEHICLE PROVIDED WITH THE EXTERIOR MATERIAL AND SOUND ABSORPTION FREQUENCY CHARACTERISTIC ADJUSTMENT METHOD FOR THE SOUND ABSORPTION STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide an exterior material for a vehicle capable of suitably suppressing noise of a low frequency band area that is hardly sound-absorbed by a non-woven fabric from being transmitted into a cabin when using the non-woven fabric as a base material.;SOLUTION: A fender liner 20 comprising the non-woven fabric is mounted to an outer surface of a tire house 14. A plurality of mounting parts 21 projectedly provided on an outer surface side of the tire house 14 and fixed to the same outer surface are formed on this fender liner 20. These mounting parts 21 are fixed to the tire house 14 through a vibration-proof material 40 by a bolt 30 and a nut 31. Thus, an air layer 50 having predetermined layer thickness is formed between the fender liner 20 and the outer surface of the tire house 14 by mounting the fender liner 20 to the outer surface of the tire house 14.;COPYRIGHT: (C)2007,JPO&INPIT