FIELD: tire industry.
SUBSTANCE: invention relates to two-wheel and four-wheel vehicles and pneumatic tires for automobiles. Proposed pneumatic tire contains one layer of carcass and one ring reinforcement member coupled with said carcass layer, tread band made of elastomer material in radially outer position relative to carcass, band arranged between carcass and tread band and pair of side strips opposite in axis on carcass. Thread band contains great number of first sectors arranged at a distance along axis and narrowing inwards along radial direction, great number of second sectors arranged at a distance along axis and narrowing outwards along radial direction. First and second sectors adjoin each other in axis along cross extension of tread band. Ratio between A Shore hardness at 23°C of first sectors measured according to DIN 53505 Standard and A Shore hardness at 23°C of second sectors measured according to DIN 53505 Standard exceeds 1.10. Method of manufacture of such pneumatic tire is described in invention.
EFFECT: provision of pneumatic tire featuring high adhesion with road in proportion to wear of tread.
26 cl, 6 dwg
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