Abstract: A surface of a sidewall portion of a pneumatic tire includes: a ridge pattern region provided with a plurality of ridges extending continuously in one direction at an interval, a smooth surface region composed of a smooth surface, and a two-dimensional code having a rectangular shape in which a dot pattern is formed of two kinds of gray scale elements that are formed distinguishable from each other by unevenness of a surface. The two-dimensional code is provided in the smooth surface region, and a shortest distance Lmin at a position where a distance from the ridge pattern region to the two-dimensional code is the shortest distance Lmin among four sides of the rectangular shape of the two-dimensional code is from 3 to 25% of a length W of one side, of the two-dimensional code, the one side having the position where the distance of the two-dimensional code is the shortest distance Lmin.

Abstract: A pneumatic tire includes a plurality of main grooves and a land portion defined by the main grooves. Further, the main groove includes a rib-shaped protrusion portion protruding from a groove bottom of the main groove and extending in a tire width direction, and being coupled to a groove wall of the main groove at, at least, one end. Further, a maximum height H1 of the protrusion portion has a relationship 0.01?H1/Hg?0.20 with respect to a groove depth Hg of the main groove. Further, the maximum height H1 of the protrusion portion is in a range H1?1.6 mm.

Abstract: A tire is provided with blocks in a tread portion. Each of the blocks has a block wall surface provided with first recesses. Each of the first recesses extends across a block ground contacting surface and the block wall surface. Each of the first recesses has a triangular ground contacting surface opening on the block ground contacting surface and a triangular wall surface opening on the block wall surface. The wall surface opening has a first end terminating without reaching a groove bottom of one of grooves demarcating the each of the blocks.

Abstract: The tire 10 comprises a widthwise narrow groove 8. The center-side narrow groove portion 8a is formed, from groove opening side to groove bottom side, in a shape of a continuous series of: a narrow section 8au including the groove opening; a tapered section 8at where the groove width increases toward the groove bottom; a wide straight section 8as extending in the groove depth direction with a constant groove width and having a groove width greater than that of the narrow section; and an arc-shaped section 8ab including the groove bottom, and the shoulder-side narrow groove portion 8b is formed, from groove opening side to groove bottom side, in a shape of a continuous series of: a narrow section 8bu including the groove opening; a tapered section 8bt where the groove width increases toward the groove bottom; and an arc-shaped section 8bb including the groove bottom.

Abstract: Commercial vehicle tire of radial design with a tread with circumferential grooves formed to a profile depth, which divide the tread into at least two profile ribs (1) running in the central region of the tread with profile blocks (2) separated from one another by transverse grooves (3) and into shoulder-side profile ribs, wherein at least one of the circumferential grooves (4) adjoining a central profile rib (1) has, in cross section, a radially outer sipe-like narrow section (6) and a channel (8) adjoining this in the interior of the tread which is configured to be wider than the sipe-like narrow section (6) and which is delimited by two channel walls (8b) and a channel bottom (8a) forming the groove bottom, and wherein this circumferential groove (4) is interrupted in its course by entry points of transverse grooves (3). Opposite the entry points, a projection (9, 9?) is formed locally in each case on the channel wall (8b) located opposite the entry points of the transverse grooves (3).

Abstract: A wireless power reception system includes a power transmission device, a power reception device, a wheel with a rim, and a tire mounted on the rim. The tire includes a bead core and a bead filler, a tire width direction cross-sectional area S1 of the bead filler is one to eight times a tire width direction cross-sectional area S2 of the bead core, the power transmission device can transmit electric power with a frequency of 1000 kHz or less wirelessly, the power reception device is disposed farther inward in the tire radial direction than a tread portion of the tire, the power reception device receives the electric power wirelessly from the power transmission device in a state such that the power transmission device is located farther outward in the tire radial direction than the tire, and the tread portion of the tire is formed from a non-magnetic material.

Abstract: A partition assembly configured to be mounted in a tire cavity defined between a wheel and a tire to divide the tire cavity into a plurality of segments, the partition assembly including at least one air line and a plurality of baffles. Each one of the plurality of baffles including: a base configured to be mounted to the wheel, the base defining an air passageway in fluid communication with the at least one air line; and an expandable body connected to the base and in fluid communication with the air passageway of the base, the expandable body configured to be filled with air from the at least one air line. Each one of the plurality of baffles is configured to receive air from the at least one air line to expand the plurality of baffles from a deflated configuration to an inflated configuration in which the plurality of baffles are configured to contact an inner wall of the tire coupled to the wheel to divide the tire cavity into the plurality of segments.

Abstract: A tire has a tread portion including a first shoulder land region. The first shoulder land region is provided with first shoulder sipes. Each of the first shoulder sipes is provided with a chamfered portion over an entire lengthwise range from a first longitudinal edge to a first tread edge. Each of the chamfered portions includes a first chamfered portion defined between a shoulder center position and the first longitudinal edge and a second chamfered portion defined between the shoulder center position and the first tread edge. The second chamfered portion has a chamfer volume larger than a chamfer volume of the first chamfered portion.

Abstract: A tire comprises a tread portion comprising circumferential grooves and land portions divided thereby. The land portions include a first shoulder land portion and a first middle land portion adjacent thereto. The first shoulder land portion is provided with first shoulder sipes. The middle land portion is provided with first middle sipes. Each of the first shoulder sipes and the first middle sipes comprises a main portion extending in the tire radial direction, and a widened portion having a width greater than the main portion and opened at the tread surface of the land portion. The opening width of the first shoulder sipe at the tread surface is larger than the opening width of the first middle sipe at the tread surface.

Abstract: A tire tread pattern includes: first sipes in a first land portion between first and second circumferential main grooves; first chamfered surfaces in which a tread surface of the first land portion is inclined toward a first circumferential main groove side in an end portion in a width direction, the first sipes opening to the first chamfered surfaces; second sipes in a second land portion on an opposite side of the first land portion with respect to the second circumferential main groove; and second chamfered surfaces in which a tread surface of the second land portion is inclined toward a second circumferential main groove side in an end portion in the width direction, the second sipes opening to the second chamfered surfaces. The first and second chamfered surfaces are greater in length in the circumferential direction than in the width direction.

Abstract: A pneumatic tire includes a plurality of main grooves formed in a tread and extending along a tire circumferential direction, wherein the plurality of main grooves include a shoulder main groove located on an outermost side in a width direction, the shoulder main groove includes a raised portion formed by raising a first side, in the tire width direction, of a groove bottom of the shoulder main groove more than a second side of the groove bottom, and the raised portion is lower than an outer surface of the tread and continuously extends over an entire circumference in the tire circumferential direction.

Abstract: A tire comprises an outer strip (2) having a tread (21). The outer strip (2) has a central part and two axially outer parts and comprises at least two rubber compounds (M1, M2) making up at least 90% of the volume of the outer strip (2). The first compound (M1) is radially outside of the second compound (M2), which makes up at least 60% of the axially outer parts and being disposed in a layer that is substantially continuous from one axially outer part to the other, said layer having a minimum thickness at least equal to 0.3 mm. The compound M1 has a modulus G* that is greater than 1.35 times and less than 3 times that of the compound M2. The compound M1 has a dynamic loss at 0° C. greater than 0.5 and the compound M2 has a dynamic loss at 23° C. less than 0.3.

Abstract: A tire comprises an outer strip (2) having a tread (21). The outer strip (2) has a central part and two axially outer parts and comprises at least two rubber compounds (M1, M2) making up at least 90% of the volume of the outer strip (2). The first compound (M1) is radially on the outside of the second compound (M2), which makes up at least 60% of the axially outer parts and being disposed in a layer that is substantially continuous from one axially outer part to the other, said layer having a minimum thickness at least equal to 0.3 mm. The compound M1 has a modulus G* that is greater than 1.35 times and less than 3 times that of the compound M2. The compound M1 has a dynamic loss at 0° C. greater than 0.5 and the compound M2 has a dynamic loss at 23° C. less than 0.3.

Abstract: A pneumatic vehicle tire having a tread with at least one profile block row delimited at each side by a respective circumferential channel which is divided into profile blocks by transverse channels which open into both circumferential channels and run parallel to one another in plan view. Each transverse channel, in plan view, is made up of two channel portions which adjoin one another at an obtuse angle of 100° to 160°. In each profile block there is a blind channel which opens into both channel portions of a transverse channel and which is elongate in plan view and, with the transverse channel, forms a channel combination running in a Y shape in plan view, which blind channel has a width, determined at the tread periphery, of 1.0 mm to 6.0 mm and runs at an angle of 0° to 60° with respect to the circumferential direction.

Abstract: A pneumatic tire includes, on a surface of a side rubber provided on sidewall portions, a two-dimensional code in which a dot pattern is formed by two types of gray scale elements distinguishable from each other by irregularities on the surface. Dot holes are formed in the two-dimensional code, corresponding to dark elements of the gray scale elements. The side rubber is a diene rubber including butadiene rubber, and when A is a blended amount of the butadiene rubber relative to 100 parts by mass of the diene rubber contained in the side rubber and when B is a blended amount of carbon, a ratio A/B and a hole depth D (mm) from an opening of the dot hole to a hole bottom satisfies a relationship of 1.1?(A/B)/D?6.0.

Abstract: A heavy duty tire comprises a tread portion having circumferential grooves and land portions. The circumferential grooves include two shoulder circumferential grooves and a crown circumferential groove. The land portions include two of shoulder land portions and two crown land portions. The width W3 of the shoulder land portion is 17% to 28% of the tread width TW. The crown land portion is divided by crown shallow groove into crown blocks. The groove depth of the crown shallow groove is smaller than the groove depth of the crown circumferential groove. The groove bottom of the crown shallow groove is provided with a groove bottom sipe. The ground contacting top surface of the crown block is hexagonal, and the maximum circumferential dimension is 100% to 200% of the maximum axial dimension.

Abstract: A pneumatic vehicle tire, in particular utility vehicle tire, having a tread which has a directional profiling with shoulder-side and middle profile ribs running in a circumferential direction, wherein at least one of the middle profile ribs (1), which is in particular a profile rib running along the tire equator, is traversed in an axial direction by sipes (4) with a width (b1) of 0.5 mm to 1.2 mm, each of which has a central portion (4a), in which the sipe (4) runs with an undulation in the direction of extent thereof, and two lateral portions (4b). The sipes (4) extend, in plan view, in an arc shape and symmetrically with respect to the centerline of the profile rib (1), and, in the lateral portions (4b) and in the central portion (4a), have a uniform undulation running in the radial direction, on which the undulation present in the extent direction of the sipes (4) is superposed only in the central portion (4a) of the sipe (4).

Abstract: A pneumatic tire including a first block line in which a plurality of first blocks sectioned by main grooves and lateral grooves are arranged in a tire circumferential direction on a tread, the plurality of lateral grooves includes first lateral grooves extending inclined with respect to a tire width direction and second lateral grooves inclined in an opposite direction to the first lateral grooves with respect to the tire width direction, the first and second lateral grooves are alternately arranged, the first block includes a first sipe extending while being inclined to the tire width direction, a second sipe inclined in an opposite direction to the first sipe with respect to the tire width direction, and a first connecting portion connecting ends of the first sipe and the second sipe, and the first connecting portion is formed by a recessed portion shallower than the first sipe and the second sipe.

Abstract: A tire can include a three-dimensional sipe formed into a tire tread. The three-dimensional sipe can be formed in a tread element of the tire tread and can include a three-dimensional pattern. The three-dimensional sipe can have a first frequency of oscillation at a top end of the three-dimensional sipe and a second frequency of oscillation at a bottom end of the three-dimensional sipe with the first frequency of oscillation being different from the second frequency of oscillation.

Abstract: Pneumatic tire comprising a tread (1) provided with two edges (2), a center (3) and a plurality of tread bars (10) distributed in a circumferential direction, each tread bar (10) extending in an oblique direction from one of the edges (2) towards the center (3) of said tread (1), the plurality of tread bars (10) comprising at least two adjacent tread bars (11, 12); each of said adjacent tread bars (11, 12) has at least one incision (20, 21, 23) extending along the length of the tread bar, each adjacent tread bar has an overall incision length (LGI) corresponding to the sum of the lengths of the incisions that are part of said tread bar, the widths (LB11, LB12) of said adjacent tread bars (11, 12) are different, and the overall incision length (LGI) in said adjacent tread bars (11, 12) is different.