Bolt action ring binder

Details Bolt action ring binder Bolt action ring binder

1999-04-30

2000-12-05

Pitts, Andrea L.

Binder device releasably engaging aperture or notch of sheet

Pivotal link type sheet retainer

281 271, 402 46, 402 49, 402 54, 402 56, 402 60, 402 61, 402 64, B42F 302, B42F 1322

Patent

active

061557374

ABSTRACT:
A binder ring mechanism (16) has a plurality of binder rings (18a-18c) for holding sheets of paper. Each binder ring includes a fixed section (20) and a movable section (22). All of the movable binder ring sections are commonly mounted on a bolt (36). A lever arm (52) is attached to one end of the bolt for movement of the lever arm to move the bolt and the binder ring sections mounted on the bolt. The bolt is movably mounted on a cover piece (24) for both rotational and sliding movement of the bolt. A recess (58) is formed in an endwall (56) of the cover piece and the lever arm includes a latch member (60) received in the recess to latch the lever arm in place when the binder rings are closed so to prevent inadvertent movement of the lever arm which might cause the binder rings to open. In addition, the cover piece has flaps (82, 84) extending diagonally outwardly therefrom for storing writing instruments in a ring binder (10) in which the binder ring mechanism is installed.

REFERENCES:
patent: 3255759 (1966-06-01), Dennis

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