Continental Reifen Deutschland GmbH

A vehicle tire, in particular a pneumatic vehicle tire, having sidewalls and a tread and having at least one hatching area on at least one of the sidewalls and/or on the tread wherein the hatching area has elongated hatching ribs, which run next to one another and have directions of longitudinal extent running parallel or largely parallel to one another. The vehicle tire is distinguished in that the hatching ribs have rib portions which follow one another in a zig-zag shape and together enclose alternately inner-corner and outer-corner regions, wherein a freely ending additional rib branches off respectively on the same side of the hatching ribs and respectively extends up from inner-corner regions, and wherein hatching ribs running next to one another are offset from one another with respect to their directions of longitudinal extent in such a way that the outer-corner regions and inner-corner regions of adjacent hatching ribs respectively lie opposite one another. The invention also relates to a vulcanizing mold and to a method for producing the pneumatic vehicle tire.

A pneumatic vehicle tire comprises a tread with shoulder flanks, sidewalls and bead regions. The tire is vulcanized in a vulcanizing mold with a plurality of segments of a segment ring that are arranged movably in the radial direction for forming the tread and the shoulder flanks, with sidewall shells for forming the outer sides of the sidewalls and with mold partitions between the segments and the sidewall shells, wherein the shoulder flanks together with those regions that correspond to the positions of the mold partitions continuously adjoin the outer sides of the sidewalls such that the shoulder flanks are in line with the outer sides of the sidewalls. Radially within the regions that correspond to the positions of the mold partitions, in each case there directly adjoins a portion of the sidewall which, when the tire is viewed from the side, forms a circumferential flat surface running around in the form of a circular ring, with a radial extent of 10.00 mm to 25.00 mm, and which merges tangentially into the outer side of a further portion of the sidewall which has a thin amount of extra material of 0.50 mm to 1.50 mm and in radial section is curved outward in the form of a circular arc.

The invention relates to a pneumatic vehicle tire comprising at least one surface element ( 2 ) formed on its outer surface with a peak-and-trough contrast structure ( 6 ) formed relative to a base level (NB) and covering the surface. The peak-and-trough contrast structure ( 6 ) is formed from a plurality of contrast structure cells ( 7 ) joined together in a grid pattern and having matching forms in top view, wherein the peak-and-trough contrast structure ( 6 ) has grid-defining troughs ( 6 a ) along the mutual connection points of the contrast structure cells ( 7 ), wherein the contrast structure cells ( 7 ) each have an irregular peak-and-trough structure ( 8 ) which covers the surface, extends up to the grid-defining troughs ( 6 a ) and is made solely of a single cohesive branched peak structure ( 8 a ) and closed-ended troughs ( 8 b ) projecting from the grid-defining troughs ( 6 a ), wherein the arrangement of the contrast structure cells ( 7 ) and the design of the irregular peak-and-trough structures ( 8 ) are such that, viewed from above, the irregular peak-and-trough structures ( 8 ) can be transferred into one another by congruent projection.

A tire tread ( 100 ) for a tire ( 101 ) comprising, a top side ( 10 ) configured to engage a ground surface during tire operation, a bottom side ( 20 ) configured for attachment to a tire carcass ( 105 ), a tread thickness ( 40 ) extending from the bottom side ( 20 ) to the top side ( 10 ) along a radial direction (R), a first lateral side ( 50 ) connecting the top side ( 10 ) with the bottom side ( 20 ), a second lateral side ( 60 ) connecting the top side ( 10 ) with the bottom side ( 20 ), wherein the first lateral side ( 50 ) is spaced apart from the second lateral side ( 60 ) along an axial direction (A). The tire tread ( 100 ) further comprises a plurality of grooves ( 70 ) extending into the tread thickness ( 40 ) from the top side ( 10 ) and terminating within a first depth ( 71 ) of the tire tread ( 100 ) at a groove bottom ( 75 ). Furthermore, the tire tread ( 100 ) a first shoulder track ( 51 ) limited by the top side ( 10 ), the bottom side ( 20 ) and the first lateral side ( 50 ), a second shoulder track ( 61 ) limited by the top side ( 10 ), the bottom side ( 20 ) and the second lateral side ( 60 ), wherein the first shoulder track ( 51 ) and/or the second shoulder track ( 61 ) comprise a preset geometry for an improved pressure distribution, wherein the first shoulder track ( 51 ) comprises a first shoulder track width ( 55 ) and a first reduced tread thickness ( 41 ) with respect to the tread thickness ( 40 ) and/or wherein the second shoulder track ( 61 ) comprises a second shoulder track width ( 65 ) and a second reduced tread thickness ( 42 ) with respect to the tread thickness ( 40 ).

A pneumatic tire for a vehicle, having at least one surface element that is formed on the outer surface of the tire and has a structure which contrasts with a base level and gives the surface element a roughness. The contrast structure is formed by a multiplicity of contrast structure cells, which coincide in shape in plan view and are joined together in the form of a grid. The contrast structure cells have irregular peak and trough structures of a surface-covering configuration. The arrangement of the contrast structure cells and the configuration of the irregular peak and trough structures are such that, when considered in plan view, the irregular peak and trough structures can be transferred one into the other by congruence mapping.

A tire tread ( 100 ) for a tire ( 101 ) comprising, a top side ( 10 ) configured to engage a ground surface during tire operation, a bottom side ( 20 ) configured for attachment to a tire carcass ( 105 ), a tread thickness ( 40 ) extending from the bottom side ( 20 ) to the top side ( 10 ) along a radial direction (R), a first lateral side ( 50 ) connecting the top side ( 10 ) with the bottom side ( 20 ), a second lateral side ( 60 ) connecting the top side ( 10 ) with the bottom side ( 20 ), wherein the first lateral side ( 50 ) is spaced apart from the second lateral side ( 60 ) along an axial direction (A). The tire tread ( 100 ) further comprises a plurality of grooves ( 70 ) extending into the tread thickness ( 40 ) from the top side ( 10 ) and terminating within a first depth ( 71 ) of the tire tread ( 100 ) at a groove bottom ( 75 ). Furthermore, the tire tread ( 100 ) a first shoulder track ( 51 ) limited by the top side ( 10 ), the bottom side ( 20 ) and the first lateral side ( 50 ), a second shoulder track ( 61 ) limited by the top side ( 10 ), the bottom side ( 20 ) and the second lateral side ( 60 ), wherein the first shoulder track ( 51 ) and/or the second shoulder track ( 61 ) comprise a preset geometry for an improved pressure distribution, wherein the first shoulder track ( 51 ) comprises a first shoulder track width ( 55 ) and a first reduced tread thickness ( 41 ) with respect to the tread thickness ( 40 ) and/or wherein the second shoulder track ( 61 ) comprises a second shoulder track width ( 65 ) and a second reduced tread thickness ( 42 ) with respect to the tread thickness ( 40 ).

A pneumatic vehicle tire having a tread with profiling and at least one circumferential groove which runs in encircling fashion in the circumferential direction and is formed to a profile depth. At least over part of the circumference the groove has a cross section perpendicularly to the circumferential direction made up of at least two groove portions adjoining one another in a radial direction. A first groove portion is symmetrical with respect to the radial direction. The width of said groove portion in the axial direction is less than 3 mm and does not vary by more than 10%. A second radially inner groove portion is made wider in the axial direction in comparison with the first groove portion. It has the largest cross-sectional area of all the groove portions. Its cross-sectional area is asymmetrical to the radial direction, extends on both sides of the radial direction and has an edge without corners in the bottom region of the circumferential groove.

The invention relates to a multi-layer tread for use in vehicle tires, comprising: a) a base layer comprising a first rubber material, and b) a top layer arranged on the base layer and connected to the base layer, wherein the top layer comprises: i) a first side region comprising a second rubber material, ii) a second side region comprising a third rubber material, and iii) a central region arranged between the first side region and the second side region and comprising a fourth rubber material, wherein the first rubber material has a higher modulus of elasticity than the fourth rubber material, and wherein the fourth rubber material has a higher modulus of elasticity than the second rubber material and the third rubber material.

Vehicle tire having a tread, comprising at least one profile block, wherein a profile block contour of the profile block comprises a contact side contour, an edge region contour, a bevel contour and a flank contour, wherein the contact side contour adjoins the edge region contour, wherein the edge region contour adjoins the bevel contour and wherein the bevel contour adjoins the flank contour, wherein the contact side contour runs substantially in a base area of the tread, wherein at least one point on the edge region contour lies above the base area by an edge region height. The profile block contour follows a convex profile between a first point on the flank contour and a second point, situated below the base area on the bevel contour.

The invention relates to a commercial vehicle tire having a tread with at least one profile rib which runs in encircling fashion in a circumferential direction, is arranged laterally with respect to the tire equatorial plane and has sipes extending through it, which sipes each have sipe walls, a sipe midplane spaced apart equally from the sipe walls, a width of 0.4 mm to 2.0 mm and a maximum depth in a radial direction of at least 40% of the profile depth, wherein each sipe, at least in a portion which runs over the predominant part thereof as seen in plan view, has at least one sipe zone which is offset in relation to the radially outer sipe periphery and which runs in an extent direction of the sipe in an undulating form and in arcuate or singly serrated form in a radial direction, wherein a plane running through the point of the maximum excursion of the sipe zone has a line of intersection with the sipe midplane, which line of intersection follows the undulating form of the sipe zone.