Patent ID: 8870731

Claim:
A device for stamping a plurality of creases into a material layer comprising: a rotating shaft having a longitudinal axis and a rotation direction; a main roller body arranged on the rotating shalt and having a circumferential surface; a first foil having a first creasing ridge; a second foil having a, second creasing ridge; a first plurality of holding elements sunk into the main roller body, the first plurality of holding elements affixing the first foil on the circumferential surface of the main body; an auxiliary roller body that is angularly rotatable about the longitudinal axis of the rotating shaft such that the auxiliary roller body is rotatable relative to the main roller body, the auxiliary roller body having a circumferential surface and being mounted on an end of the main roller body; and a second plurality of holding elements sunk into the auxiliary roller body, the second plurality of holding elements affixing the second foil on the circumferential surface of the auxiliary roller body.