发明名称 |
Speaker diaphragm and manufacturing method thereof |
摘要 |
A speaker diaphragm which has a high rigidity and can improve sound transmission speed for better sound quality is provided. The speaker diaphragm contains fibers of 3 to 50 mm length mixed in matrix resin. The fibers are oriented radially from center to periphery in surface layers of the diaphragm, while they are oriented in different directions in a middle layer. After setting the resin, these fibers are fixed in the matrix resin with certain tension applied thereto.
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申请公布号 |
US7443998(B2) |
申请公布日期 |
2008.10.28 |
申请号 |
US20030446814 |
申请日期 |
2003.05.29 |
申请人 |
PIONEER CORPORATION;TOHOKU PIONEER CORPORATION |
发明人 |
HACHIYA SATOSHI |
分类号 |
C08J5/04;H04R25/00;B29C45/00;B29K105/12;B29L31/38;B32B5/28;B32B27/04;D04B1/08;H04R7/02;H04R7/12;H04R31/00 |
主分类号 |
C08J5/04 |
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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