PNEUMATIC TIRE Russian patent published in 2011 - IPC B60C11/04 B60C11/11 B60C11/12 

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Proposed tire has multiple road sections made up by multiple peripheral grooves running along tire periphery, and multiple transverses grooves running across tire surface. Peripheral groove consists of one main wide peripheral groove and multiple narrow peripheral auxiliary grooves. Width of peripheral auxiliary groove makes less than 60% of main peripheral groove width. Total width of peripheral auxiliary grooves is smaller than that of the main peripheral groove.

EFFECT: better road grip.

4 cl, 3 dwg