Patent ID: 7530755
Filing Date: 2009-05-12
Classification: B42F

Abstract:
1. An easy-open ring metal for a binder comprising: at least one binder ring comprising two ring segments; a pair of hinge plates to one end of each of which one of the segments is attached; a movable bar extending from one end of the metal to the other, the bar contacting the hinge plates to move them when the binder is to be opened; a trigger connected to one end of the bar to move the bar, the bar being connected to the trigger through a slot by which, when the trigger is drawn away from a first, binder closed position, to a second, binder open position, the bar is moved relative to the hinge plates forcing the hinge plates to pivot the respective segments of the binder rings away from each other and open the binder; a slot pin installed in the slot and the bar having at least one prong projecting outwardly from an end of the bar for attaching the trigger to the bar so, as the trigger pivots about its base, the slot pin moves through the slot until it reaches an end thereof, with continued pivoting of the trigger moving the bar in a direction to effect opening of the binder ring; and, a cover for the metal having an end wall to which the trigger is pivotally connected for opening and closing the binder ring, the end wall having an outward projecting extension, and the trigger having a pivot pin extending transversely across a base of the trigger and pivotally connected to the extension to allow the trigger to pivot about its base to open and close the binder ring.