Tire and a lamella plate for the manufacture of a sipe of a tire

1 . A tire comprising:

a tread provided with a first tread block separated from another tread block by a portion of a groove, wherein:

the first tread block comprises:

a first primary first wall; and

a second primary first wall such that a primary first sipe is arranged between the first primary first wall and the second primary first wall; wherein:

the first primary first wall is provided with a first primary first wall indentation and first primary first wall protrusion,

the second primary first wall is provided with a second primary first wall indentation and a second primary first wall protrusion,

the first primary first wall defines a first primary first wall surface having a planar surface or a curved surface, from which the first primary first wall protrusion protrudes and into which the first primary first wall indentation descends,

the second primary first wall defines a second primary first wall surface having a planar surface or a curved surface, from which the second primary first wall protrusion protrudes and into which the second primary first wall indentation descends,

the first primary first wall indentation is geometrically congruent with the second primary first wall protrusion,

the first primary first wall protrusion is geometrically congruent with the second primary first wall indentation,

the first primary first wall protrusion is asymmetric about all planes that have a normal that is parallel to a wall projection line, which is a projection of a line that remains in between a center of the first primary first wall protrusion and a center of the first primary first wall indentation, the projection being a normal projection to the first primary first wall surface,

a first part of a surface of the first primary wall protrusion is inclined so that a height of the first primary wall protrusion, as measured from the first primary first wall surface, decreases from a maximal height towards the first primary first wall indentation by a first inclination,

a second part of the surface of the first primary wall protrusion is inclined so that a height of the first primary wall protrusion, as measured from the first primary wall surface, decreases from the maximal height away from the first primary first wall indentation by a second inclination,

the second inclination is different from the first inclination, and

the second inclination defines an inclination angle of less than 85 degrees.

2 . The tire of claim 1 , wherein:

a minimum distance between the first primary first wall indentation and the first primary first wall protrusion is at most 4 mm; and/or

the first primary first wall protrusion and the first primary first wall indentation define a wall projection line, which is a projection of a line that remains in between a centre of the first primary first wall protrusion and a centre of the first primary first wall indentation, the projection being a normal projection to the first primary first wall surface; and

the wall projection line forms a minimum angle of at most 30 degrees with the tread, or the wall projection line is parallel to the tread.

3 . The tire of the claim 1 , wherein

a first form that is symmetric with the first primary first wall protrusion about a first symmetry plane is symmetric with the first primary first wall indentation about a second symmetry plane, the second symmetry plane being perpendicular to the first symmetry plane.

4 . The tire of claim 1 , wherein

the first primary first wall indentation is asymmetric about all the planes that have a normal that is parallel to a wall projection line, which is a projection of a line that remains in between a centre of the first primary first wall protrusion and a centre of the first primary first wall indentation, the projection being a normal projection to the first primary first wall surface.

5 . The tire of claim 1 , wherein:

the first primary first wall protrusion is symmetric about a plane, and/or

the first primary first wall indentation is symmetric about a plane.

6 . The tire of claim 1 , wherein:

the first primary first wall protrusion and the first primary first wall indentation define a wall projection line, which is a projection of a line that remains in between a centre of the first primary first wall protrusion and a centre of the first primary first wall indentation, the projection being a normal projection to the first primary first wall surface, and

a length of the first primary first wall protrusion, as measured in the direction of wall projection line is greater than a width of the first primary first wall protrusion, as measured in a direction that is perpendicular to the direction of wall projection line and perpendicular to a norm of the first primary first wall surface and/or

a length of the first primary first wall protrusion, as measured in the direction of wall projection line is from 1.5 mm to 20 mm.

7 . The tire of claim 1 , wherein:

the first primary first wall indentation and the first primary first wall protrusion form a first locking form,

the second primary first wall protrusion and second primary first wall indentation form a second locking form, which is geometrically congruent with the first locking form to enable a shape-locking mechanism of the second locking form to the first locking form, and

a shape of a projection of the first locking form to the first primary first wall surface resembles one of the following: an infinity sign, a bowtie, a dog bone, a double ended arrow, a rectangle, and a rounded rectangle.

8 . The tire of claim 1 , wherein:

the first primary first wall is provided with a secondary first primary first wall indentation and secondary first primary first wall protrusion, and

the first primary first wall defines a secondary first primary first wall surface having a planar surface or a curved surface, from which the secondary first primary first wall protrusion protrudes and into which the secondary first primary first wall indentation descends.

9 . The tire of claim 1 , wherein

the primary first sipe is producible in a moulding process by using a lamella plate comprising:

a first surface; and

a second surface opposite to the first surface wherein

the first surface is provided with a first primary plate indentation and a first primary plate protrusion; and

the second surface is provided with a second primary plate protrusion that is opposite to the first primary plate indentation and a second primary plate indentation that is opposite to the first primary plate protrusion such that

the first surface defines a first primary lamella plate surface having a planar surface or a curved surface, from which the first primary plate protrusion protrudes and into which the first primary plate indentation descends, and

the second surface defines a second primary lamella plate surface having a planar surface or a curved surface, from which the second primary plate protrusion protrudes and into which the second primary plate indentation descends;

the first primary plate protrusion and the first primary plate indentation define a projection line that is a projection of a line that remains in between a centre of the first primary plate protrusion and a centre of the first primary plate indentation, the projection being a normal projection to the first primary lamella plate surface, and

the first primary plate indentation is asymmetric about all planes that have a normal that is parallel to the projection line.

10 . The tire of claim 1 , wherein the second inclination is steeper than the first inclination.

11 . The tire of claim 1 , wherein:

a minimum distance between the first primary first wall indentation and the first primary first wall protrusion is less than or equal to 4 mm,

a width of the first wall protrusion decreases towards the first primary first wall indentation, and

a width of the first wall indentation decreases towards the first primary first wall protrusion.