| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sound absorbing material laminate which is formed by joining sound absorbing material materials to each other, has remarkable effect on the reduction of the production time and the reduction of production cost due to the reduction of the production time and does not incur specific increase in the weight; and to provide a device for reducing tire noise using the sound absorbing material laminate. <P>SOLUTION: The sound absorbing material laminate is formed by a laminated sound absorbing materials, wherein: a hot melt adhesive is arranged in the boundary between the laminated sound absorbing materials; and the sound absorbing materials are partially joined to each other on at least the boundary by the thermal melt welding of the hot melt adhesive. The device for reducing the tire noise is configured by using the sound absorbing material laminate and is used by being adhered or fixed to the surface of a tire cavity or being inserted into the tire cavity. <P>COPYRIGHT: (C)2012,JPO&INPIT |
