Patent ID: 7914433

Claim:
A folding roller for a device for folding a flat product to be folded, the roller extending along a center axis and comprising: a first axial portion on a first axial half; and a second axial portion on a second axial half, the first and second axial halves being divided by a center plane, the first axial portion having a first surface for folding the product to be folded, the second axial portion including a main relief radially recessed relative to the first folding surface, the second axial portion including a second surface for folding the product to be folded, the main relief being radially recessed relative to the second folding surface, the main relief extending over an angular range greater than 270°, the angular range having a maximum of 325°, around the center axis, the first axial half and the second axial half being asymmetrical with respect to one another about the center plane.