Ready lock ring binder mechanism
US7744300B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2007 |
| Grant date | Jun 29, 2010 |
| Priority date | — |
| Expiry date | Dec 21, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42F13/26
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A ring binder mechanism that retains loose-leaf pages and has ring members that readily lock together, preventing accidental loss of pages. The mechanism comprises a housing that supports two hinge plates for pivoting motion, bringing the ring members to either an open position or a closed position. The mechanism further comprises a control structure, which includes an actuator moveable relative to the housing for controlling pivoting movement of the hinge plates. The actuator is connected to a travel bar that is moveable by the actuator into position for blocking pivoting motion of the hinge plates when the ring members are closed. The connection of the travel bar to the actuator permits the actuator to move in a range without actuating corresponding movement of the travel bar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.