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US 6,033,171 AGranted
Apparatus and method for cutting and crimping a spiral coil
AssigneeSpiraFlex, Inc.
InventorsThomas J. Doyle, Gerald E. Blaha
Life of this patent
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AssigneeSpiraFlex, Inc.
InventorsThomas J. Doyle, Gerald E. Blaha
Estimating the term…
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.
An apparatus for cutting and crimping the lead and trailing ends of a spiral binding coil inserted into the edge of a book of sheets, which edge has been provided with a series of equally spaced through holes on a line parallel to the edge, said apparatus comprising:
A method for cutting and crimping the lead and trailing ends of a spiral binding coil inserted into the edge of a book of sheets, which edge has been provided with a series of equally spaced through-holes on a line parallel to the edge, said method comprising the steps of:
Dependencies are inferred from the claim text.