发明名称 |
RING MECHANISM BIASED TO CLOSED AND LOCKED POSITION |
摘要 |
A ring binder mechanism that retains loose-leaf pages and has ring members that readily lock together in a closed position, preventing accidental opening of the ring members and loss of pages. The mechanism comprises a housing that supports two hinge plates for pivoting motion that brings the ring members to either an open position or the closed position. The mechanism further comprises a control structure supported by the housing for causing the pivoting motion of the hinge plates. A spring plate is engageable with the control structure for urging the control structure to move toward a position blocking pivoting motion of the hinge plates when the ring members move to the closed position.
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申请公布号 |
US2006153629(A1) |
申请公布日期 |
2006.07.13 |
申请号 |
US20050905606 |
申请日期 |
2005.01.12 |
申请人 |
WORLD WIDE STATIONERY MANUFACTURING COMPANY, LIMITED |
发明人 |
CHENG HUNG Y. |
分类号 |
B42F13/20 |
主分类号 |
B42F13/20 |
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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