发明名称 |
Plastic fan |
摘要 |
A plastic fan is composed of a plastic-made fan portion and a metal-made insert portion integrally embedded in the plastic-made fan portion. The fan portion is formed of fan blades and a fan boss. The insert portion is formed of a ring-shaped flat base portion and a bent portion extending upright from an outer peripheral edge of the base portion and having a substantially ring-shaped configuration in plan and a flattened U-shaped configuration in cross-section. The insert portion defines lock holes arranged at predetermined intervals in an outer peripheral portion of the metal-made insert portion and extending through the metal-made insert portion from an outer side thereof to an inner side thereof. The inner peripheral edge portion of each of the lock holes is formed of a smooth flat surface on at least one of the outer side and the inner side of the metal-made insert portion.
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申请公布号 |
US5927949(A) |
申请公布日期 |
1999.07.27 |
申请号 |
US19970907462 |
申请日期 |
1997.08.08 |
申请人 |
USUI KOKUSAI SANGYO KABUSHIKI KAISHA, LTD. |
发明人 |
OGASAWARA, MASAYUKI |
分类号 |
F04D29/34;F04D29/02;F04D29/32;F04D29/64;(IPC1-7):F04D29/34 |
主分类号 |
F04D29/34 |
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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