The present technology relates generally to devices and methods for preserving the integrity of folders that are placed into ringed binders or notebooks, preferably folders that are made of paper or other like material, and which are used for example for the transport and storage of papers by students or other types of users.

The present technology relates generally to devices and methods for preserving the integrity of folders that are placed into ringed binders or notebooks, preferably folders that are made of paper or other like material, and which are used for example for the transport and storage of papers by students or other types of users.

The present technology relates generally to devices and methods for preserving the integrity of folders that are placed into ringed binders or notebooks, preferably folders that are made of paper or other like material, and which are used for example for the transport and storage of papers by students or other types of users.

A device for providing attachment points for a folder has a layer of material with an inside surface and an outside surface. The inside surface folds onto itself to form a doubled layer having a folded edge and a cut out section. A supporting segment at or near the folded edge closes the cut out section into an aperture for receiving a closing mechanism of a binder. The device is adhered to the inside of a folder at the folder openings arranged to receive the binder's closing mechanism. When the reinforced folded folder is mounted into a binder, both sides of the folded folder press against the attachment device to contain the attachment device in the folder, and the supporting segment presses against the closing mechanism to contain the folder in the binder.

A notebook binding system that includes a plurality of sheets and a plurality of ring fastening members. Each sheet of said plurality of sheets includes an edge and a plurality of first openings spaced apart along the edge. Each first opening of the plurality of first openings includes a cap portion and a stem portion between the cap portion and the edge. The plurality of sheets is arranged in a stack such that each first opening of every plurality of first openings is substantially aligned with another first opening of another plurality of first openings. Each ring fastening member of the plurality of ring fastening member is insertable into the first openings of the plurality of sheets to retain the sheets in the stack.

A sheet system including a sheet having an edge and at least one generally triangular hole positioned adjacent to but spaced apart from the edge. A side of the triangle is oriented generally parallel with the edge of the sheet.

A sheet system including a sheet having an edge and at least one generally triangular hole positioned adjacent to but spaced apart from the edge. A side of the triangle is oriented generally parallel with the edge of the sheet.

A divider assembly is shown and described herein. The divider assembly may divide a stack of sheets, the divider assembly may include a body and a tab extending from the body. A first side of the body and a first side of the tab may include a cover or coating. The cover or coating may include designs or indicia. A second side of the body may include a covered portion and a non-covered portion. A second side of the tab may be non-covered. Non-covered portions may be compatible with more or different writing instruments than covered portions. The divider assembly may be reversible such that the first side or the second side may be utilized.

A sheet system including a sheet having an edge and at least one generally triangular hole positioned adjacent to but spaced apart from the edge. A side of the triangle is oriented generally parallel with the edge of the sheet.

A recording-medium binding device includes a first tooth row and a second tooth row. The first tooth row and the second tooth row to be engaged with the first tooth row cooperate with each other to pinch a recording medium batch. The first tooth row and the second tooth row include at least one first region and at least one second region adjacent to the at least one first region. When the first tooth row and the second tooth row are engaged with each other, teeth of the first tooth row and teeth of the second tooth row overlap one another in a tooth height direction by a first engagement overlapping amount in the at least one first region and by a second engagement overlapping amount in the at least one second region. The second engagement overlapping amount is larger than the first engagement overlapping amount.