| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a flat electric horn, elevating sound pressure without varying sizes (maintaining builds) of a diaphragm and an electromagnet. <P>SOLUTION: A flat electric horn comprises a tubular member 12 whose one end 12a is fixed to the circumferential edge of a housing 1 and whose inner peripheral wall 12c surrounds the outer peripheries of a diaphragm 3 and a sounding board 6. <P>COPYRIGHT: (C)2013,JPO&INPIT |
