PNEUMATIC TIRE OF VEHICLE Russian patent published in 2020 - IPC B60C11/16 B60C11/03 

FIELD: machine building.

SUBSTANCE: tire tread is made with profiled elements separated from each other by means of grooves, for example shaped grousers or profiled tapes, in which at least one anti-skid stud (1) is installed in anti-skid stud hole (1). At least on opposite sides of anti-skid stud in circumferential direction (U) ends of recesses (4, 4', 6) are formed to receive ice particles that occur when scratching anti-skid stud (2) on ice. Said opposed anti-skid stud sides opposed in circumferential direction (U) of anti-skid stud (2) are each provided with one recess (4, 4', 6) with peripheral zone (4a, 4'a, 6a) circumscribed in horizontal projection and central zone (4b, 4'b, 6b) located in horizontal projection inside edge area (4a, 4'a, 6a), wherein central zone (4b, 4'b, 6b) with respect to the circumference of the tread is radially deeper than edge zone (4a, 4'a, 6a), and the depth (t_b, t_b') of central zone (4b, 4'b, 6b) in circumferential direction (U) continuously increases to anti-skid stud (2).

EFFECT: technical result is improved adhesion of tire tread with winter road.

15 cl, 2 dwg