| 摘要 |
PROBLEM TO BE SOLVED: To enhance beauty by preventing an adhesive from being exposed while increasing adhesive strength with simple constitution. SOLUTION: The bonding structure of the dust cap of this speaker includes a diaphragm, the dust cap covering a surface of the diaphragm, and an edge fixing a peripheral end of the diaphragm and a peripheral end of the dust cap. An adhesion portion for bonding and fixing the peripheral end of the dust cap is provided at an inner end of the edge. Further, a recess into which an adhesive is injected is formed on the surface of the adhesion portion which is opposed to the peripheral end of the dust cap. Then a first rib to enter the recess is formed at the peripheral edge of the dust cap. COPYRIGHT: (C)2009,JPO&INPIT
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