Apparatus and method for cutting and crimping a spiral coil

Details Apparatus and method for cutting and crimping a spiral coil Apparatus and method for cutting and crimping a spiral coil

1998-08-21

2000-03-07

Fridie, Jr., Willmon

Bookbinding: process and apparatus

Apparatus

Edge binding apparatus

412 1, B42B 510

Patent

active

060331712

ABSTRACT:
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.

REFERENCES:
patent: 4161196 (1979-07-01), Fabrig
patent: 5785479 (1998-07-01), Battisti et al.
patent: 5931623 (1999-08-01), Hastings et al.

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