PNEUMATIC TIRE FOR VEHICLES

摘要

The invention relates to a tread profile of a pneumatic tire for vehicles having radially raised profile elements (1, 2, 3, 4) - in particular profile block elements and/or profile ribs - separated from each other by profile grooves (13, 14, 15), wherein at least one profile groove (14) is formed having a directional component of the main extent thereof in the circumferential direction U of the pneumatic tire for vehicles, wherein the profile groove (14) is formed having a groove root (18) aligned along the extent thereof and having a groove wall (16, 17) on each side of the groove root (18), formed having a groove wall (16, 17) extending in the radial direction R thereof from the groove root (18) to the shell surface radially outwardly delimiting the adjacent profile elements (2, 3), wherein a plurality of protrusions (20) is formed in the groove root distributed along the main extent of the groove (14), wherein said protrusions (20) each are made of at least two protrusion segment disposed adjacent to each other in the direction transverse to the main extent of the groove (14), wherein the protrusion (20) forms the shell surface of a cylindrical segment or a truncated cone segment in one of the two adjacent protrusion segments, and the shell surface of a cylindrical segment or a truncated cone segment in the other, wherein the axes of the cylinder segment or truncated cone segment are formed below the groove (14) having main direction components transverse to the main extent direction of the groove, wherein the two adjacent protrusion segments are formed having different radii of curvature over the extent of each in the protrusion segment.