Improved loose-leaf binder

B - Operations – Transporting – 42 – F

Patent

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Details

B42F 13/00 (2006.01) B42F 13/20 (2006.01)

Patent

CA 2522034

A binder (1) for releasably retaining loose-leaves (72). The binder has a front cover (44) that lies flatly beneath its back cover (40) when the binder is open 360 degrees. The rings (46) of the binder can rotate around an edge of the flatly-folded cover to enable loose-leaves to lie flat above and below the cover. The binder also has a skeleton (50) with a minimal cross-section spine (53) which may be partially or completely embedded in a cover and rotates in relation to parallel front and back covers when the binder is open 360 degrees. The front cover, middle cover (42) and back cover are connected in a way so that they do not interfere with the rotation of the rings. Mechanisms to open and close the rings of the skeleton to allow addition or removal of loose-leafs, and ring shapes to optimize or stabilize the capacity of the binder during operation are also disclosed.

Cette invention porte sur une reliure (1) servant à retenir amovible des feuillets mobiles (72). Cette reliure comprend un plat recto (44) qui repose à plat sous son plat verso (40) lorsque la reliure est ouverte à 360·. Les anneaux (46) de la reliure peuvent tourner autour d'un bord du plat posé à plat de façon à permettre aux feuillets mobiles de reposer à plat au-dessus et en-dessous du plat. La reliure comprend également une armature (50) dont le dos présente une section transversale minimale et peut être partiellement ou complètement intégré dans un plat et tourne par rapport aux plats recto et verso parallèles lorsque la reliure est ouverte à 360·. Le plat recto, le plat intermédiaire (42) et le plat verso sont reliés de manière à ne pas gêner la rotation des anneaux. Cette invention concerne également des mécanismes servant à ouvrir et à fermer les anneaux de la structure, afin de permettre l'ajout ou l'enlèvement de feuillets mobiles, ainsi que diverses formes d'anneaux conçues pour optimiser ou stabiliser la capacité de la reliure lors de son utilisation.

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