Other

Spiraflex Inc.

Gerald E Blaha

Thomas J Doyle

An automatic spiral binding apparatus for edge binding a book of sheets with a spiral coil includes a book supporting table that is indexable between loading, coil insertion, coil crimping and book discharge stations. The apparatus can accommodate a wide range of book thicknesses, coil diameters and coil pitches. Positioning hooks in the loading station are selected to correspond to the coil diameter and are mounted at an incline to match the coil pitch in a manner which pre-orients the book edge to both the proper curvature and proper pitch to facilitate subsequent threading of the spiral coil into the holes in the edge of the book at the following insertion station.

Spiral coil insertion apparatus and method

An automatic cutting and crimping apparatus for a spiral coil binding a book of sheets includes a pair of trim heads slidably attached to a slide bar mounted on a trim station that is part of a larger spiral binding apparatus. The trim heads include a pair of stationary crimping jaws which engage and hold the lead and trailing ends of the spiral coil while a rotating cutting jaw cuts the ends of the coil as they are held against a stationary cutting jaw. The rotating cutting jaw continues to rotate so that the ends of the coil are crimped inwardly and upwardly toward the book of sheets to provide offset ends which serve to inhibit unintentional withdrawal of the coil from the holes along the edge of the book. After the coil has been cut and crimped, the spiral bound book is indexed to a discharge station for discharge from the spiral binding machine.

Growing community of inventors

Neenah, WI, United States of America

Gerald E Blaha