| 摘要 |
A ring binder is provided to simplify the structure thereof, to make the weight thereof light, to diversify the size and the shape thereof, to make the size thereof small and to improve the convenience of writing by letting documents turn over completely. A ring binder includes rings on which a slit is formed and a support(5) for fixing such rings. The binding of papers and documents is made through the slits formed on the rings. The slits(6,7,8,9) of the rings cross each other to fasten the papers. Slits(7,8) in the middle rings are formed in the same direction, and the slits(6,9) formed on the rings of both ends(1,4) go crisscross with the slits formed in the middle rings to make the separation and binding of papers convenient. Covers made of a hard material are used. |
