发明名称 |
High-rigidity sheet-metal structure |
摘要 |
In a high-rigidity structure made of sheet metal, in order to prevent increases of vibrations and noises owing to deterioration of the rigidity caused by decreasing the thickness of the sheet-metal, ribs having a height 10 times or more larger than the sheet-metal thickness are formed on bent portions of the sheet-metal structure, corrugated continuous grooves having two or more crest portions are formed on a surface of each of the bent portions on a smaller-radius side, and concave/convex sections corresponding to the continuous grooves are formed on side surfaces of each of the ribs which connect a larger-radius side and the smaller-radius side.
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申请公布号 |
US5564247(A) |
申请公布日期 |
1996.10.15 |
申请号 |
US19940314069 |
申请日期 |
1994.09.28 |
申请人 |
HITACHI, LTD. |
发明人 |
NAKAMURA, KEIICHI;KUNIKATA, MASARU;YOSHIKAWA, TAKEHISA;MAITA, YOSHIRO;SASAKI, SHUNJI |
分类号 |
F24F1/00;B21D49/00;B21D51/12;B21D51/52;F24F13/20;(IPC1-7):B21D13/00;B21D13/10 |
主分类号 |
F24F1/00 |
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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