| 摘要 |
The present invention discloses a portfolio type device employing sealed plastic sheet protectors fastened together in a ringed binder, and enclosed by a durable outer shell this shell may be made of a suitable material such as leather, vinyl or nylon canvas. When in the closed position, the present invention employs a zipper on three sides to secure the shell, thereby completely encasing the documents and providing protection from wind, rain and other elements. On the fourth side of the device is attached a handle to facilitate portability of said device. The plastic sheet protectors may be of varying sizes to accommodate oversized documents such as blueprints, photographs, business cards or other documents. The oversized sheet protectors may be folded over to fit within the present invention when it in the closed position, although not causing permanent folds or curling of the edges of the document. The ring binder portion of the present invention comprises a single piece, which is held into the outer casing by means of a snap on its outermost ends. When the snaps are disengaged, the ring binder component can be removed and attached to a hanging blueprint rack for display of the enclosed documents.
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