| 主权项 |
1. A ring binder for use in holding loose-leaf pages, the ring binder comprising:
an elongate body; rings for retaining loose-leaf pages, each ring including first and second ring members extending from and supported by the elongate body, the first and second ring members being moveable relative to one another between a closed position in which the first and second ring members together form a substantially continuous, closed loop for allowing loose leaf pages retained by the ring to be moved along the ring from one ring member to the other and an open position in which the first and second ring members form a discontinuous, open loop for adding or removing loose-leaf pages from the ring; and a retaining system operable to selectively and releasably hold the first and second ring members in the closed position, the retaining system comprising first and second interlocking formations adjacent ends of the first and second ring members, respectively, the first and second interlocking formations being selectively moveable relative to one another between a retaining position in which the retaining system holds the first and second ring members in the closed position and a non-retaining position in which the retaining system does not hold the first and second ring members in the closed position, wherein the interlocking formation of the second ring member comprises an opening having an axis, the first interlocking formation being adapted to exert forces on the second interlocking formation at the opening extending radially outward from the axis in multiple directions as the interlocking formations are moved from the non-retaining position to the retaining position, the second interlocking formation being adapted to compress the first interlocking formation as the interlocking formations are moved from the non-retaining position to the retaining position. |
