| 摘要 |
<P>PROBLEM TO BE SOLVED: To effectively suppress muffled sound in a cabin due to longitudinal primary resonance. Ž<P>SOLUTION: By opening a vicinity of a dash panel 20 which is a vibrating portion (sound generation portion) of longitudinal primary resonance in the cabin 14, that is, a tube portion 110 of a glove box (resonator) 100 in a space 40, longitudinal primary resonance due to vibration in the vehicle longitudinal direction of the dash panel is effectively suppressed. In other words, muffled sound in the cabin due to longitudinal primary resonance in the cabin is effectively suppressed. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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