VEHICLE TIRE Russian patent published in 2019 - IPC B60C11/16 B60C11/03 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to studded tires. Pins (1) consist of pin body (2) and pin stud (3). Pin stud (3) has surrounding engaging edge (7), which forms front edge in direction D of forward motion while engaging edge (8) and engaging edge (9) located in rear direction in direction of rotation. These engaging edges (8, 9) in each case extend over the entire width of pin stud (3) formed in axial direction A, note here that length of surrounding engagement edge (7) effective in tire circumferential direction is larger than that of axially effective length of engaging edge. Engaging edge (8), which is located in front in the direction of rotation when moving forward, is made with two sharply converging to each other parts (10, 12) of the engaging edge. Pin body (2) is formed from base flange (4), central part (5) and upper flange (6), wherein in planes of section formed perpendicular to longitudinal direction of pin (1) length, upper flange (6) and central part (5) have round, oval or elliptical contour of section. Center S₄ gravity of pin stud (3), center S₃ gravity of upper flange (6), center S₂ gravity of central part (5) and center S₁ gravity of base flange (4) are located on common straight line g. Base flange (4) has a cross-section circuit in which the cross-section point, which in the direction of rotation is farthest from the common straight line g and located in front of the straight line g, is located on the distance a measured to the straight line g in the direction of rotation, and in which the point cross-section circuit, which in direction of rotation is furthest from common straight line g and located behind straight line, is located on distance b measured to direction of rotation to straight line, wherein a is not equal to b.

EFFECT: improved operational characteristics of the tire during braking and traction.

10 cl, 11 dwg