| 摘要 |
<p>The accidental opening of a closing site (4) of a ring (3) of a ring binder mechanism (1) is reliably avoided by a safety closure (6) having a U-shaped profile (7) with curvatures and/or angles, the free side (9, 10) of which comprises inwardly projecting detents (10-13) for surrounding the ring (3) while extending beneath the closing site (4).</p> |
