Closure clip with round bottom

1. A closure clip for products in bag or sausage form, the packaging cover material of which being formed from at least one packaging film, the closure clip comprising:

a clip bottom; and

two straight clip legs adjoined to the clip bottom in the same direction and diverge away from each other away from the clip bottom, a central longitudinal axes thereof and a central longitudinal axis of the clip bottom lying in a common plane,

a central part of the clip bottom being rounded in the form of part of a circular arc,

the closure clips forming a clip line by being interconnected chain-like at connecting extensions provided at the free ends of the clip legs, the clip line being wound on a roll, and roll having at least one machine-readable identification.

2. The closure clip of claim 1 where a transition between the clip bottom and the two clip legs is uniform.

3. The closure clip of claim 2 where the closure clip has a cross-section that is substantially in the shape of an ellipse, the length of the major axis of the ellipse is a multiple of the radius at the curvature sides.

4. The closure clip of claim 3 where ellipse has straight longitudinal sides extending at least approximately parallel to the first major axis of the ellipse.

5. The closure clip of claim 1 where the closure clip has a material thickness which remains at least approximately the same substantially over the entire length thereof.

6. The closure clip of claim 1 where the closure clip is made from a wire.

7. The closure clip of claim 1 where free ends of the clip legs form connecting extensions facing away from an axis of symmetry of the closure clip.

8. The closure clip of claim 7 where the connecting extensions are angled outwardly at an angle of at least approximately 90°.

9. The closure clip of claim 7 where the connecting extensions extend angled at an acute angle relative to the axis of symmetry.

10. The closure clip of claim 7 where surfaces of the connecting extensions, which surfaces face away from an apex point of the part-arcuate rounding of the clip bottom, are disposed at least partially in the same plane the perpendicularly intersects the axis of symmetry of the closure clip.

11. The closure clip of claim 7 where in the region of front ends of the connecting extension, which face away from each other, are constrictions that narrow in the direction of the front ends of the connecting extensions.

12. The closure clip of claim 1 where at least one longitudinally extending profile recess is provided at the mutually facing surfaces of the clip bottom and the two clip legs.

13. The closure clip of claim 12 where the profile recess extends at least approximately over the entire mutually facing surfaces of the clip bottom and the two clip legs.

14. The closure clip of claim 12 where at least two profile recesses are provided, the two profile recesses being parallel to one another.

15. The closure clip of claim 14 where the two profile recesses extend in mutually spaced relationship.

16. The closure clip of claim 14 where the two profile recesses extend on both sides along the central longitudinal axis of the mutually facing surfaces of the clip bottom and the two clip legs.

17. The closure clip of claim 12 where the profile recess extends along a central longitudinal axis of the mutually facing surfaces of the clip bottom and the two clip legs.

18. The closure clip of claim 12 where the profile recess has an at least approximately V-shaped notch.

19. A die for processing the closure clips of claim 1 where a die bottom configured for holding the closure clips has a rounded portion corresponding to the rounded bottom in the form of part of a circular arc of the closure clips.