| 摘要 |
PROBLEM TO BE SOLVED: To provide a speaker capable of adjusting the position of a sensor unit during assembly without performing complicated work. SOLUTION: The speaker 20 comprises a magnet 5 fitted to the external side of a device body, cone paper 2 for generating a sound, a piezoelectric film 6 for detecting vibrations of the cone paper 2, and a piezoelectric film support member 7 which is fitted to the external surface of the magnet 5 and supporting the piezoelectric film 6 such that the piezoelectric film 6 can be adjusted in the height direction, so that the position of the piezoelectric film 6 supported by the piezoelectric support member 7 can be adjusted from outside the device body. COPYRIGHT: (C)2009,JPO&INPIT
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