PNEUMATIC TYRE AND METHOD OF ITS MANUFACTURING Russian patent published in 2009 - IPC B60C11/12 B29D30/06 B29C33/02 B29L30/00 

FIELD: transportation.

SUBSTANCE: invention is related to motor industry. Pneumatic tyre comprises multiple blocks on its tread, which are defined with grooves installed along periphery of tyre, substantially, in its circumferential direction, and multiple cross grooves that cross grooves arranged in circumferential direction. All grooves are formed on surface of tyre tread. At that slot-like grooves are arranged on tyre tread, every of which has at least one pair of inclines surfaces, installed in direction of depth of this groove inside block, separating every such block on its front side, and pair bulges installed on opposite walls of such slot-like groove. Every pair of specified bulges has total height equal to width of slot-like groove, and specified bulges are formed on at least one specified pair of inclined surfaces of slot-like groove, besides bulges are arranged one opposite the other. Method for tyre manufacture is realised with the help of vulcanisation die mould, in which multiple special knives are installed, being designed to form according slot-like grooves in tyre tread.

EFFECT: tyre adhesion properties improve.

6 cl, 27 dwg