| 摘要 |
A ring binder (100) has a center spine (102) and end leafs (104). A ring assembly (10) attaches to the spine includes a cover piece (12) and bolts (1 4, 16) on each of which are formed binder ring halves (18a-18b, 20a-20b, 22a- 22b). The bolts are mounted on the cover piece and movement relative to each other to close and open the binder. A latching mechanism (50) formed on a distal end (44) of each ring half interlocks the ring halves together when t he binder is closed. A guide finger (62) on each bolt aligns each bolt to the cover piece when the bolts are moved to close the binder rings, this action aligning the latching mechanism so the ring halves readily interlock with ea ch other. A thumb pad (52) formed on each of the bolt releasably engages with t he cover piece to lock the bolts in a binder ring closed position.
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