Paper sheets binding system

Details Paper sheets binding system Paper sheets binding system

B - Operations, Transporting

42

D

129/16

B42D 1/00 (2006.01) B42B 5/08 (2006.01) F16B 2/12 (2006.01) F16B 21/08 (2006.01)

Patent

CA 1330920

PAPER SHEETS BINDING SYSTEM ABSTRACT OF THE DISCLOSURE A paper sheets binding system utilizes a two-part connector including a headed bifurcated inner ratcheted post binding member and a headed pawls-containing locking collar which is ratcheted down over the post member legs to cinch the heads either directly around punch-hole apertures in a paper sheets stack or against a pair of longitudinal binding strips on opposite marginal edges of the stack, with or without an affixed paper sheets cover. The post legs and pawls on the binding member and locking collar, respectively, are offset from the center of their heads 80 that upon assembly on a paper sheets stack to be bound, the connector element heads are asymmetric with respect to the apertures in the punch-hole paper stack. This allows the connector to better withstand asymmetric loading which is present when a book is purposely opened or accidentally dropped. The post legs contain an outer flat longitudinal section which minimizes their central thickness and allows for a cleaner, more accurate frangible breaking off of excess post leg lengths to accommodate various binding thicknesses. A bifurcated rim including a beveled ridge which passes through the strip aperture and snap locks into an exit portion of the aperture on a side of the strip opposite the counterbore may also be included. An open groove in the bifurcated rim accommodates a sheared pawl and allows debinding of the locking collar from the binding member by various hand-operated elognated or disc-shaped binding/debinding tools.

582724

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