发明名称 |
COUPLING STRUCTURE, COUPLING MEMBER HAVING COUPLING STRUCTURE, AND METHOD FOR PRODUCING COUPLING MEMBER HAVING COUPLING STRUCTURE |
摘要 |
<p>A coupling structure includes a hollow rod section formed of a metal pipe and fastening sections formed by plastic deformation of the metal pipe so as to be connected with end sections of the hollow rod section. The fastening section includes a pair of base end sections which are each connected with a peripheral wall section forming a closed cross-section at the end section of the hollow rod section, and are separated from each other, and a bottom wall including a flat surface connected with the pair of the base end sections, and a pair of front end sections including a pair of side walls curving inwards from at least widthwise end sections of the bottom wall on a base end section side.</p> |
申请公布号 |
EP2860050(A4) |
申请公布日期 |
2016.01.27 |
申请号 |
EP20130800578 |
申请日期 |
2013.06.07 |
申请人 |
NIPPON STEEL & SUMITOMO METAL CORPORATION |
发明人 |
SHIRAKAMI SATOSHI;MIZUMURA MASAAKI;YOSHIDA TOHRU |
分类号 |
B60G7/00;B21D19/00;B21D22/02;B21D41/02;B21D53/84 |
主分类号 |
B60G7/00 |
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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