PNEUMATIC TIRE Russian patent published in 2019 - IPC B60C11/12 B60C11/13 B60C11/03 

FIELD: automotive industry.

SUBSTANCE: invention relates to the automotive industry. Pneumatic tire includes: central main groove made in contacting with soil of central part of tread part; main groove of the shoulder zone made on the side of the central main groove, which is external in tire lateral direction; central contact section formed by forming its boundaries by means of central main groove and main groove of shoulder area; part with chamfers, in which plurality of chamfers are located in direction along tire circumference, at that chamfers are made on the edge of inlet part of central main groove on side of central contact section; curved groove made on central contact section located nearby – in lateral direction of tire – with edge of inlet part of central main groove, including part with chamfers, and bent in accordance with shape of chamfers part with chamfers, and passing along direction along circumference of tire, and auxiliary groove made on central contact section between main groove of shoulder area and curved groove and extending towards bent groove in direction intersecting with tire circumferential direction.

EFFECT: increased resistance to non-uniform wear at guarantee of braking characteristic at movement on wet surfaces of roads.

15 cl, 16 dwg