B60C2011/039

Pneumatic tire
11014409 · 2021-05-25 · ·

On a pneumatic tire are defined a first imaginary line VL1 passing through a ground contact surface in a meridian cross section of a tread portion, a second imaginary line VL2 passing through a bottom portion of a shoulder main groove and parallel to VL1, an intersection point P between VL2 and a surface of a shoulder land portion outward from a ground contact edge in a lateral direction, and an equatorial plane CL. 0.80≤(B+C)/A≤1.15 is satisfied, where A represents a distance in the lateral direction between P and CL, B represents a depth of the shoulder main groove, and C represents a distance in the lateral direction between the ground contact edge and CL. 0.75≤S/A≤0.95 is satisfied, where S represents a distance in the lateral direction between CL and an end portion of a longest belt ply in the lateral direction.

Tire

A tire comprises a tread portion provided with two circumferential grooves disposed one each side of the tire equator and extending continuously in the tire circumferential direction, and a crown land region between the two circumferential grooves. The crown land region is provided with first crown sipes extending from one of the circumferential grooves and terminating within the crown land region, and second crown sipes extending from the other circumferential groove and terminating within the crown land region.

Pneumatic Tire
20210162815 · 2021-06-03 ·

The pneumatic tire includes a shoulder main groove and a center main groove disposed in one region demarcated by a tire equatorial plane and a shoulder land portion and a middle land portion defined by the shoulder main groove. The shoulder land portion is a rib that is continuous in a tire circumferential direction, and the middle land portion includes a plurality of middle lug grooves and a plurality of middle blocks defined by the plurality of middle lug grooves. When defining a section in the tire circumferential direction along an edge portion of one middle block close to the shoulder main groove, a groove width of the shoulder main groove continuously increases or decreases in the section.

TIRE

The tire has a tread portion axially divided into two shoulder land regions, two middle land regions and one crown land region by two shoulder circumferential grooves and two crown circumferential grooves. The middle land regions are each provided with a single longitudinal sipe, and first and second middle transverse grooves extending from the adjacent shoulder circumferential groove and crown circumferential groove, and terminated without being connected to the longitudinal sipe. The shoulder land regions are each provided with shoulder transverse grooves extending from tread edges and terminated within the respective shoulder land regions.

PNEUMATIC VEHICLE TYRE

A pneumatic vehicle tire, in particular commercial vehicle tire, having a tread having in each case one shoulder-side profile rib (1) which is separated in each case from a central tread portion (3) by a wide circumferential groove (2) which is made to profile depth (T) and which runs around rectilinearly in the circumferential direction, wherein the circumferential groove (2) has a rounded groove base (8) and is delimited at the profile rib (1) by a rib flank (6). Recesses (9) are formed on the rib flank (6) of the circumferential groove (3) at the profile rib periphery, which recesses have, in the direction of extent of the circumferential groove (2), a length of extent (1) of 70% to 90% of the profile depth (T), at most of 30 mm, and in each case have, as seen in plan view, boundary surfaces (10a, 10b) which run toward one another in an L shape and extend in the radial direction, and a bottom surface (11), wherein, as seen in plan view, the one first boundary surface (10a) runs into the profile rib (1) at an angle (β) of up to 35° to the axial direction, and the second boundary surface (10b) runs at an angle (β.sub.2) of 90° to 125° to the first-mentioned boundary surface (10a), and wherein bottom surface (11) is situated at a depth (t) of 15% to 25% of the profile depth (T).

Pneumatic Tire
20210129594 · 2021-05-06 ·

A pneumatic tire includes lug grooves in a tread surface of a shoulder land, the lug grooves crossing a circumferential direction and terminating at a first side within the shoulder land and passing through a contact edge at a second side; and a notch formed on an opening edge of the lug grooves, the notch being cutout from the tread surface cut radially inward. The lug grooves have a width decreasing from the first to the second side, an end position of the lug grooves is disposed from a main groove from 5% to 35% of a lateral dimension from the main groove to the ground contact edge, and a maximum groove width position is disposed from the main groove 40% or less of the lateral dimension from the main groove to the ground contact edge; and the notch has a width that increases from the first to the second side.

Pneumatic tire

The pneumatic tire comprises a tread portion 2 provided with first sipes 25 and second sipes 26 and having a first tread half portion 21 and a second tread half portion 22. The first sipes 25 are smoothly continued from a crown land region 10 in the second tread half portion 22 to a shoulder land region 13 in the first tread half portion 21 through a crown main groove 3 and a shoulder main groove 5. The second sipes 26 extend from the crown land region 10 in the second tread half portion 22 toward a second tread edge Te2.

Pneumatic tire
11007821 · 2021-05-18 · ·

A pneumatic tire includes a tread; sidewalls; and beads. Lug grooves are formed in the tread inclining symmetrically about an equator, an inclination angle α of the lug grooves relative to the lateral direction being 15°≤α≤45°. A width W1 of the lug grooves at the tread edge and an interval W2 between the lug grooves at the tread edge satisfying 0.7≤W1/W2≤1.5. Shoulder grooves connecting lug grooves are inclined in an opposite direction to the lug grooves have an inclination angle β relative to the lug grooves being 80°≤β≤100°, a center position of the shoulder grooves being 15% to 35% of tread width TW from the equator. An area A1 of the shoulder grooves and an area A2 of shoulder blocks satisfy 0.2≤A1/A2≤0.6. A groove area ratio of the tread is 0.4 to 0.7.

Tire
10981418 · 2021-04-20 · ·

A tire comprises a tread portion. The tread portion comprises a first tread edge, a shoulder main groove extending continuously in a tire circumferential direction between the first tread edge and a tire equator, and a shoulder land region defined between the first tread edge and the shoulder main groove. The shoulder land region is provided with a shoulder sipe extending in a tire axial direction with a width less than 1.5 mm. The shoulder sipe includes a narrow sipe portion and a wide sipe portion having a width larger than that of the narrow sipe portion. The wide sipe portion is arranged on a side of the shoulder main groove.

Pneumatic vehicle tire

A pneumatic vehicle tire with a tread comprising circumferential grooves (2) and at least one profile rib (1), which runs around in the circumferential direction and formed in which there are grooves (4) which at a groove flank (5) of a circumferential groove (2) that delimits the profile rib (1) open into it, wherein the groove flanks (5) of the circumferential groove (2) run at an angle (β) of 12° to 17° to the radial direction, thereby widening the circumferential groove (2) in the direction of the periphery of the tread. The grooves (4) run at an angle (α) of 45°±20° to the axial direction, end within the profile rib (1), have a maximum depth (t.sub.2) of 3.5 mm and open in each case into a local indentation (7), which is formed at the groove flank (5), reaches up to the periphery of the tread, is concavely rounded along the groove flank (5) and has a bottom (7a) that runs in particular parallel to the periphery of the tread and is at a distance (c), determined in the radial direction, of 0.5 mm to 2.0 mm from the deepest point of the groove (6) of the circumferential groove (2).