Pneumatic vehicle tires

A pneumatic vehicle tire comprising a tread which has a profile and has at least one circumferential groove encircling in a circumferential direction and having a profile depth (PT), wherein in a cross section and starting at an external face of the tread, the at least one circumferential groove is composed of three adjoining groove portions including:

• one outer groove portion that expands in a funnel-shaped manner toward outsides of the pneumatic vehicle tire;
• one 1 mm to 3 mm wide contracted groove portion;
• and,
• one inner groove portion which lies radially inward, and is expanded in relation to the contracted groove portion and has the largest cross-sectional face of all portions, and which is delimited by two cover flanks, lateral groove flanks that adjoin the cover flanks, and a groove base;
• wherein the lateral groove flanks in an expanded groove portion, while reducing the mutual spacing thereof from the groove base, run at an angle (γ) of 5° to 25° in relation to a radial direction and in a direction of the circumferential extent of the lateral groove flanks run in a wave form;
• wherein the lateral groove flanks comprise the wave form having an amplitude (A) which continuously decreases from a radially outer end of the lateral groove flanks to the groove base, and decreases to a value of zero toward the groove base and wherein the wave form is sinusoidal;
• wherein the lateral groove flanks are two mutually opposite lateral groove flanks in the at least one circumferential groove;
• wherein the wave forms of the two mutually opposite lateral groove flanks are symmetrical in relation to a centric symmetry plane, and provided the wave forms of the two mutually opposite lateral groove flanks do not run in a mutually parallel manner;
• wherein the lateral groove flanks comprise the wave form having a constant amplitude (A) and having a constant wave length (λ);
• and,
• wherein the constant amplitude (A) of the wave form of the lateral groove flanks is from 0.5 mm to 2.0 mm.