Approaching vehicle warning speaker device
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United States of America Patent
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Jan 16, 2018
Issued Date -
N/A
app pub date -
Mar 28, 2014
filing date -
Mar 28, 2014
priority date (Note) -
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Abstract
This approaching vehicle notification sound speaker device is equipped with a voice coil for conducting an electrical signal, a cylindrical voice coil bobbin on which the voice coil is wound, an insulating sheet, and a cap. The sheet is wound on the voice coil bobbin at a position closer to the sound-emitting side than the voice coil, the cap is disposed closer to the sound-emitting side than the voice coil bobbin, the voice coil bobbin and the cap are made of an aluminum-containing material, and the sheet is formed with the inclusion of an aramid-based nonwoven fabric.
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