发明名称 |
Ring mechanism having blunt ends |
摘要 |
A ring mechanism for a loose-leaf binder comprises a thin, elongate plate and at least two ring members supported by the elongate plate. The ring members move between an open position for receiving and removing loose-leaf pages and a closed position for capturing the loose-leaf pages on the ring while permitting movement of the pages along the ring. The elongate plate has a longitudinal end including spaced apart first and second end portions located on one transverse side of the elongate plate. The first and second end portions are bent over to present a longitudinally facing surface which is blunt. A method of manufacturing a ring mechanism for a loose-leaf binder is also disclosed.
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申请公布号 |
US2005079005(A1) |
申请公布日期 |
2005.04.14 |
申请号 |
US20030681512 |
申请日期 |
2003.10.08 |
申请人 |
WORLD WIDE STATIONERY MANUFACTURING COMPANY |
发明人 |
CHENG HUNG YU |
分类号 |
B42F13/26;(IPC1-7):B42F3/04;B42F13/20 |
主分类号 |
B42F13/26 |
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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