| 摘要 |
<p>A system for rivetless attachment of a ring binder assembly (30) to a cover (34) wherein an attachment portion including one or more prongs (48) adapted to imbeddingly engage a cover substrate and a surface adapted to mate in facing relation with a surface of the cover is formed unitary with a confining spring cover plate (46) of the ring binder assembly, the ring binder assembly being attached to the cover by forcing the attachment portion against it with sufficient force to drive the prongs into the substrate and hold the surface of the attachment portion firmly against the cover.</p> |
