MECHANISM OF A LOOSE-LEAF BINDER Russian patent published in 2008 - IPC B42F13/24 

FIELD: the invention refers to the mechanism of a loose-leaf binder for perforated papers.

SUBSTANCE: the mechanism of the loose-leaf binder has absolutely flat plate of a foundation, two stringing pins vertically projecting at a distance from each other from the plate of the foundation of the stringing pins, a two-year reversible staple being away from the stringing pins and at least one element of rigidity which connects the supporting element with the plate of the foundation. The two-year reversible staple is mounted with possibility of partial turning around approximately parallel to the plate of the foundation of the horizontal axis, between the open and the closed position. The staple has reversible hoops in pairs contact in the closed position with its free ends with the free ends of the stringing pins. The reversible hoops are set into motion by the controlling lever mounted with possibility of turning on the supporting element projecting from the plate of the foundation. The folder for perforated papers has a back and one unbending from the back the front and correspondingly to the rear covers, moreover on the inner side of the rear cover the mechanism of loose-leaf binder is located on the inner side of the rear cover.

EFFECT: facilitate work in the office.

18 cl, 4 dwg