Patent ID: 11945379
Assignee: KOTOBUKIYA FRONTE CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC B  G | IPC B  G

Claim 0:
1. A sound-absorbing material for vehicles that is mounted to a vehicle interior and comprises a main body in which at least a fiber material and a surface material are integrally formed, wherein a sound-absorbing section provided in at least a part of the main body is formed to be mounted to the vehicle interior within a range in which a vertical distance Elh downward from a lower surface of a head rest of a front seat is from 0.1 to 0.4 m, and an airflow resistance AFR (Ns/m3) and the vertical distance Elh (m) satisfy a relation of:

210<AFR+10/Elh<3020, and

the airflow resistance AFR is set for the sound-absorbing section by having a thickness for the sound-absorbing section which is different from a thickness of other areas of the main body.