Files and method for presenting files

1. A file comprising:

a cover provided with at least a front cover portion, a back cover portion, a spine and coupling means provided on one of the cover portions or the spine for fastening an arch to the cover after it has been injection molded, said coupling means being co-injection molded in the file, wherein the front cover, the back cover and the spine are manufactured in one piece from plastic, and include hinges being co-formed therebetween for connecting the covers with the spine, and wherein the coupling means comprise clamping means, with which the arch can be fixed to the cover, said clamping means including a flange spaced from one of the cover portions and/or the spine and a recess formed in said flange; and

an arch coupled to said coupling means for fastening paper in said cover, said arch including a substantially planar base plate having an edge and at least one leg extending upwardly from said base plate, said base plate edge being retained under said clamping means flange and said upwardly extending leg being received in said flange recess, wherein said arch is snap-fit coupled to said coupling means without having to fold over any part of said coupling means to establish said snap-fit coupling between said arch and said coupling means.

2. A file according to claim 1 , wherein the coupling means further comprise guide means disposed opposite the clamping means for sliding in the base plate edge of the arch, clamping means being provided to fix the arch in the guide means when the arch has been slid in completely.

3. A file according to claim 2 , wherein the clamping means further comprises a wall extending upwardly from one of the cover portions or the spine, said flange extending outwardly from said wall in a direction toward said guide means and defining a substantially L-shaped cross-section for retaining said edge of said arch base plate under said clamping means flange.

4. A file according to claim 3 , wherein said recess is open in a direction facing the guide means.

5. A file according to claim 3 , wherein said clamping means further comprises a tongue adjacent the flange recess, said tongue extending outwardly from said wall in a direction toward said guide means a distance greater than said flange.

6. A file according to claim 1 , wherein the arch is co-injection molded in the file with the coupling means as an insert.

7. A file according to claim 1 , wherein at least a part of the spine is provided on the outside with a surface that can be written on, which surface is provided by labeling.

8. A file according to claim 7 , wherein said surface is provided by in-mold labeling.

9. A file according to claim 1 , wherein the covers and/or the spine are provided with stiffening ribs on the sides thereof facing inward during use.

10. A file according to claim 1 , wherein at least the outsides of the covers are provided with texture by in-mold labeling.

11. A file according to claim 1 , wherein the clamping means further comprises a wall extending upwardly from one of the cover portions or the spine, said flange and said wall defining a substantially L-shaped cross-section for retaining said edge of said arch base plate under said clamping means flange.

12. A file according to claim 1 , wherein said arch base plate is in direct contact with one of the cover portions or the spine.

13. A file according to claim 1 , wherein said arch is made from a metallic material.

14. In combination:

a set of plastic covers, each cover comprising at least a front cover portion, a back cover portion and a spine interconnected by hinges, wherein first coupling means are integrally molded in the cover, said first coupling means including clamping means having a flange spaced from the cover and a recess formed in the flange; and

a set of metallic arches for clamping paper, each arch being provided with second coupling means cooperating with the first coupling means for selective coupling of said arches to said covers, said second coupling means comprising a substantially planar base plate having an edge and at least one leg extending upwardly from said base plate, said base plate edge being retained under said clamping means flange and said upwardly extending leg being received in said flange recess upon coupling of said arch to said cover, wherein said arch is snap-fit coupled to said first coupling means without having to fold over any part of said first coupling means to establish said snap-fit coupling between said arch and said first coupling means.

15. A method for presenting files comprising the steps of:

providing plastic covers, each cover comprising a front cover portion, a back cover portion and a spine interconnected by hinges, which covers are integrally molded with first coupling means comprising clamping means, said clamping means including a flange spaced from the cover and a recess formed in said flange; and

providing metallic arches adapted to fix paper, said arches including second coupling means cooperating with the first coupling means for selective coupling of said arches to said covers, said second coupling means comprising a substantially planar base plate having an edge and at least one leg extending upwardly from said base plate, said base plate edge being retained under said clamping means flange and said upwardly extending leg being received in said flange recess, upon coupling of said arch to said cover,

wherein the covers and arches are provided apart from each other, such that a cover and at least one arch can be combined to a file directly before use, and wherein said arch is snap-fit coupled to said first coupling means without having to fold over any part of said first coupling means to establish said snap-fit coupling between said arch and said first coupling means.

16. A method according to claim 15 , wherein the covers are injection molded with integrated hinges.