[Problem] To provide a sound-absorbing material for vehicles that makes it possible to maintain clarity in conversation between passengers in the front seat and passengers in the back seat and that is capable of absorbing unnecessary sound in the vehicle interior.[Solution] A sound-absorbing material for vehicles that is mounted to a vehicle interior and that is provided with a main body in which at least a fibrous material and a skin material are integrally molded. The sound-absorbing material for vehicles ischaracterized in that a sound-absorbing section provided to at least part of the main body is formed so as to be mounted to the vehicle interior within a range in which the vertical distance Elh from the lower surface of the head rests of the front seats downward is 0.1-0.4 m, and in that the air flow resistance AFR (Ns/m3) and the vertical distance Elh (m) satisfy 210 < AFR + 10 / Elh < 3020.
SOUND-ABSORBING MATERIAL FOR VEHICLES
SCHALLDÄMMSTOFF FÜR FAHRZEUGE
MATÉRIAU ABSORBANT ACOUSTIQUE POUR VÉHICULES
2022-06-08
Patent
Electronic Resource
English