PNEUMATIC TIRE TREAD Russian patent published in 2006 - IPC B60C11/11 

FIELD: tire industry.

SUBSTANCE: invention relates to design of pneumatic tires intended for trucks operating both on roads with improved pavement and unimproved roads. Tread cap is made in form of blocks separated by zigzag grooves of equal width. Base of tread patent is made to form assemblies of blocks connected by half-bridges whose width is equal to or less than width of adjacent sides of blocks, and height of half-bridges is higher or lower than base of tread pattern in zigzag groove between blocks. Blocks are arranged in herringbone order with displacement through one step in circumferential direction. Width of blocks of neighbor rows arranged between lugs and separated by grooves is 71-85% of width of tread cap. Thread pattern has non-directional arrangement of lugs.

EFFECT: provision of tire featuring higher rigidity, resistance to mechanical damage, increased serviceability and service life at improvement of technology of pattern making.

3 cl, 1 dwg