| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a sound transmission structure to which a sound transmission film having excellent acoustic characteristics is easily joined.SOLUTION: A sound transmission structure 100 of the invention includes: a sound transmission film 1 which inhibits foreign objects from passing while allowing sounds to pass, the sound transmission film 1 including a support material 12, which is formed by a nonwoven cloth including elastomer, and a resin porous film 11 which is laminated on the support material and is composed mainly of polytetrafluoroethylene; and a case 120 having a sound transmission opening 122. The sound transmission film 1 closes the sound transmission opening 122 by the support material 12 being welded to the case 120.</p> |
