Patent ID: 7407356
Filing Date: 2008-08-05
Classification: B42B,B42F

Abstract:
1. A plastic spiral coil binding machine comprising: a housing having access to receive a binding edge of book pages to be bound by a first plastic spiral coil, said book pages having a row of spaced perforations along said binding edge to receive said first plastic spiral coil; a positioning carriage mounted on a front face of said housing, said carriage incorporating a pivoting page forming bar, and a pivoting cutter/crimping bar for cutting and crimping said first plastic spiral coil at both ends of said binding edge after said first plastic spiral coil is threaded through said perforations; a second length of plastic spiral coil comprising a sample of said first plastic spiral coil clamped in position by a rod inserted therethrough, said sample of said plastic spiral coil forming a rest for the concave binding edge of said book pages, said sample of said plastic spiral coil presenting a required convex shape of proper diameter matching a thickness of said book; and, a page holder for fixing in position said book pages after being positioned by said second length of plastic spiral coil attached to said page forming bar.