发明名称 |
Apparatus and method for manufacturing barrel coil spring |
摘要 |
An apparatus and method for manufacturing a barrel coil spring make it possible to coil opposite sides of a spring material at the same time so as to considerably reduce manufacturing processing, thereby remarkably reducing the time required to manufacture the coil barrel spring, thus improving productivity. |
申请公布号 |
US8424352(B2) |
申请公布日期 |
2013.04.23 |
申请号 |
US20080742703 |
申请日期 |
2008.03.18 |
申请人 |
JUNG CHAN-GI;HONG SOON-SAM;DAE WON KANG UP CO., LTD. |
发明人 |
JUNG CHAN-GI;HONG SOON-SAM |
分类号 |
B21F3/04 |
主分类号 |
B21F3/04 |
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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