| 摘要 |
Multiple ring binding unit to be sold flat, which can be simply inserted into a set of perforated pages to be bound by threading the straight teeth or fingers through the perforations in the pages. The bending of the fingers and support sections does not require the use of any bending tool as it is produced automatically by applying heat to the unit which has the tendency to shrink more on its inside than on the outside and there by curl the fingers. The long finger element consists of plastic foil which may be a laminate, of which the surface will shrink in relation to the other when its temp is raised. |
