| 摘要 |
A lever-arch type file mechanism ( 100, 200, 300 ) is disclosed as including a base ( 102 ) two rings secured to and extending upwardly from the base ( 102 ) for engaging holes in pieces of paper, each ring including a post ( 104, 204 ) fixed to the base ( 102 ) and an arch element ( 106, 206 ) movable relative to the base ( 102 ) and the post ( 104, 204 ); a lever ( 110, 210, 310 ) operable to move the arch elements ( 106, 206 ) relative to the posts ( 104, 204 ) between a closed configuration in which the rings are closed and an open configuration in which the rings are open; and the arch elements ( 106, 206 ) are joined by an integrally formed bent section ( 120, 220 ) which is asymmetrically bent about its mid point.
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