| 摘要 |
A ring binder is disclosed as including a curved upper plate supporting a pa ir of pivotable hinged leaves to which a number of half rings are attached, and tw o pivotable actuating levers for moving the pair of hinged leaves between a first positi on in which the half-rings are closed and a second position in which the half-rings are open , in which the actuating lever includes an aperture, and a cushion engaged with each actuating lever, in which the cushion has a first body part and a second body part, in which par t of the first body part extends through the aperture of the actuating lever to engage with the second body part.
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