发明授权
- 专利标题： Ring manufacturing method, apparatus of the same and rings manufactured by the ring manufacturing method
- 专利标题（中）： 环制造方法，其制造方法和环制造方法制造的环
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申请号： US13594178申请日： 2012-08-24
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公开(公告)号： US08910382B2公开(公告)日： 2014-12-16
- 发明人: Masaki Takahashi
- 申请人： Masaki Takahashi
- 申请人地址： JP Tokyo
- 专利权人： Mokumeganeya Co., Ltd.
- 当前专利权人： Mokumeganeya Co., Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Birch, Stewart, Kolasch & Birch, LLP
- 优先权： JP2011-183652 20110825
- 主分类号： A44C9/00
- IPC分类号： A44C9/00 ; B21D53/44 ; B21F37/00 ; B21J1/00
摘要：
Form the oval rings 25 from the circular rings 23. Then, twist the oval rings 25, for instance three times, around center of the longitudinal direction, and create the ring portion for male 31 and the binding portion at the both side of the binding portion. After that, obtain the rings for male 2 and the rings for female 3 by cutting the binding portion.
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