Abstract: In a pneumatic tire, an outer second land portion, a center land portion, and an inner second land portion have a road contact surface that partially bulges toward the outer side in a tire radial direction from a reference contour line of a tread profile in the cross-sectional view in the tire meridian direction. Additionally, a groove width Wg1 of an outer shoulder main groove, a groove width Wg3 of an inner center main groove, and a groove width Wg4 of an inner shoulder main groove have a relationship of Wg3<Wg1<Wg4, 1.05?Wg1/Wg3?1.25, and 1.10?Wg4/Wg3?1.30.

Abstract: The invention provides for a heavy truck tire tread (2) having a longitudinal direction (X), a lateral direction (Y) and a thickness direction (Z), said tread comprising: longitudinal grooves (20) separating longitudinal ribs; a pair of opposing tread edges (21, 21?) spaced apart along the lateral direction; a pair of shoulder ribs (22, 22?), each shoulder rib being adjacent to a respective tread edge of said pair of tread edges; wherein the shoulder ribs are solid ribs comprising lateral full depth sipes (23, 23?) running at a sipe angle (?) relative to the lateral direction (Y) and; wherein an average sipe angle (?A) over a center portion of said shoulder ribs is greater than 30° in absolute value.

Abstract: A pneumatic tire includes: a center main groove extending in a tire circumferential direction; a center land portion defined by the center main groove; a second land portion adjacent to the center land portion across the center main groove; and a second lug groove extending from the center main groove toward the second land portion in a tire lateral direction and defining the second land portion together with the center main groove; the center main groove including a center side edge portion corresponding to an edge portion on the center land portion side, the center side edge portion including a bent portion formed bent in a direction outwards in a groove width direction of the center main groove with an acute bend angle; and the second lug groove including an opening portion to the center main groove connected to the center main groove at a position opposing the bent portion.

Abstract: Provided is a tire 2 that can achieve reduction of rolling resistance while reducing a decrease in durability to be small. An apex 32 of each bead 10 includes an apex body 48, a strip apex 50, and an intermediate apex 52. An inner end of the strip apex 50 is located between a ply body 38a of a carcass ply 38 and the apex body 48. An inner end of the intermediate apex 52 is located between the strip apex 50 and the apex body 48. An outer end of the apex body 48 is located between the inner and outer ends of the intermediate apex 52. The intermediate apex 52 is located between the inner and outer ends of the strip apex 50. The intermediate apex 52 is harder than the apex body 48, and the strip apex 50 is harder than the intermediate apex 52.

Abstract: A two-wheeled vehicle tire for running on rough terrain, the tire comprising a tread portion. The tread portion comprises a plurality of middle blocks located between a tire equator and a tread edge. The plurality of middle blocks comprises at least one first middle block having an outer surface in a tire radial direction, and at least one second middle block having an outer surface in the tire radial direction whose area is larger than an area of the outer surface of the at least one first middle block. The outer surface in the tire radial direction of the at least one first middle block is not provided with sipes. The outer surface of the at least one second middle block is provided with at least one sipe.

Abstract: In a pneumatic tire, a plurality of first land portions are arrayed adjacent to each other in a tire circumferential direction, and a plurality of second land portions are arrayed adjacent to each other in the tire circumferential direction. Moreover, the first land portions and the second land portions are each arrayed in a staggered manner along a tire equatorial plane. Additionally, the first land portions and the second land portions each include a plurality of through grooves that extend through the land portions and open to a pair of inclined main grooves, and a plurality of blocks defined by the through grooves. The blocks include an innermost center block that is defined as a block closest to the tire equatorial plane. In addition, an edge portion of the innermost center block includes a notch portion that opens to a connection portion of the inclined main grooves.

Abstract: A first lateral groove and a second lateral groove are formed in a pneumatic tire. A first inclined portion is formed on one side of the first lateral groove in the tire circumferential direction, and a second inclined portion is formed on the other side of the second lateral groove in the tire circumferential direction. The first inclined portion is inclined from tire radial direction outside to tire radial direction inside by chamfering the end of one side circumferential block in the tire circumferential direction. The second inclined portion is inclined from tire radial direction outside to tire radial direction inside by chamfering the end of the other side circumferential block in the tire circumferential direction. The first inclined portion crosses the circumferential block and communicates with the circumferential groove. One end portion of the second inclined portion in the tire width direction terminates in the circumferential direction block.

Abstract: A tire fitted with a transponder comprises: a crown comprising a crown reinforcement having an axial end at each of its edges, connected at each of its axial ends by a sidewall to a bead having an interior end; a carcass reinforcement layer formed of parallel reinforcers, which is anchored in each bead around a bead wire to form a main part and a turn-up; the transponder comprising a core defining a first axis, a first cover filament helically twisted around the core and an electrical insulation device; and the first cover filament comprising at least two conductive filamentary elements galvanically connected to an electronic chip comprising a radiofrequency transmission-reception component. The thickness of elastomeric compound separating the outer cover filament, located radially outermost with respect to the first axis, and the reinforcements is greater than 0.5 millimeters.

Abstract: The present invention relates to pneumatic tires comprising a dual-layer tread made of a first layer comprising a first tread compound having a first tread property and a second layer comprising a second tread compound having a second tread property.

Abstract: The present invention relates to a tyre (1) comprising: —a carcass (5); —at least one high elongation belt (1, 2, 3, 4), being applied as a single cord externally to said carcass (5); and —an external tread portion (6), provided with two or more grooves (7) extending according to a circumferential direction (L) around said tread portion (6), wherein the axial width (Wg) of at least one of said grooves (7), measured according to an axial direction (A) parallel to an axis of rotation (R) of said tyre (10) and orthogonal to said circumferential direction (L), is at most equal to 2 millimeters.

Abstract: A pneumatic tire that includes a tread surface 1 including: two or more main grooves 3; and a pair of middle block rows 22, wherein one or more first middle blocks in the plurality of middle blocks each have a middle block inclined side wall surface 223 that faces an outer main groove in the pair of outer main grooves and that gradually inclines inwards in a tire radial direction as the middle block inclined side wall surface extends outwards in the tire width direction, and the middle block inclined side wall surface forms an acute angle ?223 of 30° to 50° with respect to a normal of the tread surface at an inner end in the tire width direction of the middle block inclined side wall surface.

Abstract: Radial carcass tire for a civil engineering vehicle, having two bead wires (2) of radial height Ht, and carcass reinforcement made of two layers, the first (1) being radially innermost with a radial height Hdc, is anchored in each bead to form a main part (11) and a turn-up (12). The second layer (3) is radially outside the first layer (1). The free end (A) of the turn-up (12) is at a radial distance from the radially outermost point (21) of the bead wire that is at least equal to 1 and at most equal to 2 times Ht. From the end A of the turn-up (12) to the point B at 85% of the radial height Hdc, the distance between carcass layers is at least equal to 2 and at most equal to 11 times the diameter of metal reinforcers of first carcass layer (1).

Abstract: An insert for a vehicle wheel suitable for being inserted in an inner annular cavity resulting between a tire and a rim of the vehicle wheel is provided. The insert has an annular element that extends in a circumferential direction (C) about a main axis (X-X), and is made in one piece of polymeric material. Dips or protrusions formed on the annular element extend about the circumferential direction (C) and along a respective preferential extension direction (A-A), which lies on a plane secant to the circumferential direction (C). A vehicle wheel having a tire, a rim, and the insert suitable for being inserted in an inner annular cavity resulting between the tire and the rim of the vehicle wheel is also provided.

Abstract: A run-flat tire includes a reinforcing rubber layer with a roughly crescent-shaped meridian cross-section disposed in sidewall portions at both sides in a tire width direction. The tread portion is provided formed of a tread rubber that includes a cap tread rubber and an undertread rubber disposed on an inner side of the cap tread rubber in a tire radial direction and having a higher hardness than the cap tread rubber. In a meridian cross-section, a gauge of the undertread rubber on a shoulder land portion on an outer side of an outermost main groove located furthest outward in the tire width direction is thicker than a gauge of the undertread rubber of a center land portion closest to a tire equatorial plane.

Abstract: In a tire tread pattern, inclined grooves extend from a starting end in a center region including an equator toward both sides in a width direction and toward the same side in a circumferential direction to a pattern end. A periphery distance from the equator to the pattern end at an outer side in the width direction being 100%, in ranges separated from the starting end by ?35%, from >35% to ?50%, from >50% to ?70% and from >70% to ?100%, an inclination angle of the inclined grooves relative to the circumferential direction is from >40° to ?50°, from >50° to ?65°, from >65° to ?80°, and from >80° to ?90°, respectively. A circumferential-direction distance from the starting end to a terminating end of the inclined grooves is 60% to 90% of a width-direction distance.

Abstract: A pneumatic tire comprises a bead portion including a reinforcing rubber portion disposed adjacently to an axially outer side of a carcass ply. The reinforcing rubber portion includes an inner rubber layer and an outer rubber layer. The radially outer end of the outer rubber layer is positioned radially outside the radially outer end of the inner rubber layer.

Abstract: A tire has a carcass with a tread, a bead, a shoulder, and a sidewall. The bead, shoulder, and sidewall partially define a first internal cavity. At least one stiffening line for a pressurized fluid with a second cavity is within the carcass. The second cavity is aligned in an approximately transverse direction relative to the periphery of the tire. The second cavity is connectable to pressurized fluid supply system and can be inflated or deflated to adjust the stiffness of the tire. The stiffening lines may be inflated using a hydraulic fluid to increase the stiffness of the tire. Related wheels, vehicles, and methods are also disclosed.

Abstract: A tooling for injecting a polymer resin into a fibrous preform for the manufacture of a revolution part in composite material including a barrel shape with an inside diameter of smaller diameter delimiting the revolution part into an upstream portion and a downstream portion of the inside diameter, the upstream portion including a back-draft intermediate portion, injection tooling wherein, to allow a demolding of the barrel-shaped part once the injection and the polymerization of the polymer resin are carried out, the injection tooling includes on the one hand a frustoconical drum comprising a first drum portion in direct contact with an inner surface of the portion of the revolution part downstream of the inside diameter and a second drum portion and on the other hand a segmented insert whose outer surface matches an inner surface of the portion of the revolution part upstream of the inside diameter.

Abstract: A pneumatic vehicle tire having a tread (2) which has a profiling and which has at least one circumferential groove (1) which runs in encircling fashion in the circumferential direction of the pneumatic vehicle tire and is formed to a profile depth PT and which has, in alternating fashion over the entire tire circumference over partial sections (21, 24) of the circumference of the pneumatic vehicle tire, a first cross section perpendicular to the circumferential direction and a second cross section perpendicular to the circumferential direction.

Abstract: The tire comprises a crown, two sidewalls and two beads, each sidewall connecting each bead to the crown, a carcass reinforcement that is anchored in each bead and extends in each sidewall and radially on the inside of the crown, each bead comprising at least one continuous filamentary reinforcing element (40) comprising N?2 circumferential turns which are radially superposed on one another. The continuous filamentary reinforcing element (40) comprises a radially outer free end (E1) and a radially inner free end (E2). At least one of the radially outer free end (E1) and the radially inner free end (E2) is threaded between two portions (50, 52) arranged radially on the outside and on the inside of the free end (E1, E2) in question.