PNEUMATIC TIRE Russian patent published in 2019 - IPC B60C19/08 B60C1/00 B60C11/00 B60C11/12 

FIELD: automotive industry.

SUBSTANCE: invention relates to the automotive industry. In pneumatic tire: at 300 % elongation of running layer (151) module is in range from 3.0 to 7.0 MPa, at 300 % elongation of subprotector (152) module is in range from 10.0 to 20.0 MPa and at 300 % elongation of grounding protector (7) module is in range from 10.0 to 20.0 MPa. Besides, earthing protector (7) is made of rubber material with volumetric specific resistance of 1×10^-7 Ohm⋅cm or less. Subprotector (152) includes thickened section (1521) in the zone between grounding protector (7) and the edge section of block (5). Thickness (Ga) of subprotector (152) gradually increases from grounding protector (7) to edge section of unit (5) due to thickened section (1521).

EFFECT: improving the splitting resistance characteristic while maintaining operational characteristics when driving on ice.

15 cl, 11 dwg