Easel type binder

Details Easel type binder Easel type binder

1984-01-06

1985-11-12

Spruill, Robert L.

Binder device releasably engaging aperture or notch of sheet

Depository

Face member with back member

281 31, 281 33, B42F 1322, B42F 304, B42D 316

Patent

active

045524793

ABSTRACT:
An easel-type loose leaf binder including a front panel, a rear panel, and a central panel which is disposed between the other panels, with fold lines running longitudinally the full length of the front and rear panels adjacent the central panel. The fold lines permit the front and back panels to be folded into a binder closed position. A transversely extending fold line extends across the front, rear and central panels to permit an upper portion of the front and rear panels to be folded back into an easel providing position. A rigid frame containing a plurality of split ring mechanisms is provided in combination with a relatively flexible backing strip which is located behind the rigid frame. A portion of the backing strip above the transversely extending fold line is secured to said rigid frame alone, while a portion of the backing strip below the transversely extending fold line is secured to both the rigid frame and to the central panel. A flap-carrying member is secured to the central panel above the transversely extending fold line, and includes spaced flaps which are foldable longitudinally with respect to the flap-carrying member. Each flap has a locking tab formed therein which cooperates with spaced slots formed in the backing strip which receive the locking tabs in locked position so when the binder is in its easel-providing position, they rigidify the binder and improve its resistance to twist.

REFERENCES:
patent: 2883209 (1959-04-01), Erickson
patent: 3121576 (1964-02-01), Schade
patent: 3334920 (1967-08-01), Orth
patent: 4015863 (1977-04-01), Holum
patent: 4355821 (1982-10-01), Crawford
patent: 4451067 (1984-05-01), Williams

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