发明名称 |
Speaker and speaker diaphragm |
摘要 |
<p>The speaker has a diaphragm main body 30 supported resiliently on a frame 23 via an edge portion 31 around its outer circumference, and the groove ribs 35 integrally formed in the edge portion 31, wherein a regulation member 37 for partially improving a flexural strength of the edge portion 31 is provided on apart of the front or back face of the edge portion 31. <IMAGE></p> |
申请公布号 |
EP1381251(A2) |
申请公布日期 |
2004.01.14 |
申请号 |
EP20030253944 |
申请日期 |
2003.06.23 |
申请人 |
PIONEER CORPORATION;TOHOKU PIONEER CORPORATION |
发明人 |
TAKAHASHI, OSAMU;ISHIYAMA, RYO |
分类号 |
H04R7/18;H04R7/02;H04R7/20;(IPC1-7):H04R7/20 |
主分类号 |
H04R7/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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