Ring binder mechanism

Details Ring binder mechanism Ring binder mechanism

1998-01-28

2000-03-07

Fridie, Jr., Willmon

Binder device releasably engaging aperture or notch of sheet

Sheet retainer travels arcuate path

Travel in plane perpendicular to axis of rotation

402 26, 402 70, 402 73, B42F 304

Patent

active

060331445

ABSTRACT:
A ring binder mechanism adapted to be secured to a cover is disclosed as including a substantially rigid curved cover supporting a pair of plates to which a plurality of half-rings are mounted, and a pair of rivets for engagement with the cover, and the plates are pivotably movable between a first configuration in which the half-rings are closed, and a second configuration in which the half-rings are open, and each rivet includes an anchor plate adapted to abut the cover, and a row of three outer claws depend from each of two side edges of the anchor plate to secure the ring binder mechanism to the cover. Two rows of inner claws depending from the underside surface of the rivet, each row being adjacent to a respective row of outer claws, are also included to enhance the gripping action. The row of outer claws and the adjacent row of inner claws may point towards the same direction, or towards different directions.

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