Ring binder mechanism

Abstract

A ring binder mechanism (10, 110, 210) to be secured with a cover (30, 130, 230) is disclosed as including an upper housing (12, 112, 212) with two through holes (20, 120, 220) and two side skirts (28, 128, 228) depending from the housing (12, 112, 212), a pair of hingedly engaged plates (14, 114, 214) supported by the housing (12, 112, 212), and a number of pairs of half-rings (16, 116, 216) mounted to the plates (14, 114, 214), and the plates (14, 114, 214) are pivotable between an open configuration in which the half-rings (16, 116, 216) are open and a closed configuration in which the half-rings (16, 116, 216) are closed to form a number of closed rings, and each through hole (20, 120, 220) is to be secured with the cover (30, 130, 230) via a rivet (38, 138, 238) only, and that at least part of the side skirts (28, 128, 228) abut the cover (30, 130, 230) when the ring binder mechanism (10, 110, 210) is secured with the cover (30, 130, 230).

Dependencies are inferred from the claim text.