Abstract: A pneumatic tire includes a carcass, a tread, a belt reinforcing structure located radially outward of the carcass and radially inward of the tread, and an insert located in each sidewall. Each insert comprises a plurality of separate rib members. The carcass includes a reinforcing ply structure extending between a pair of bead portions and a pair of sidewalls. Each sidewall is located radially outward of one of the pair of bead portions.

Abstract: A rubber composition is provided for coating a steel wire material having initial adhesion strength and water resistant adhesion strength with respect to a steel wire material at or above conventional levels, the rubber composition being compounded with a compound derived from a natural product. Specifically a rubber composition for coating a steel wire material is compounded with from 0.05 to 10 parts by weight of a salt compound per 100 parts by weight of a diene rubber, the salt compound including a dicarboxylic acid derived from a natural product and an amine of a decarboxylated amino acid derived from a natural product.

Abstract: The pneumatic tire of the present invention, in which a tread rubber, a sidewall rubber, and a breaker rubber each have an intrinsic volume resistivity of 1×108 ?·cm or more, a clinch rubber and a chafer rubber each have an intrinsic volume resistivity of 1×108 ?·cm or less, wherein the pneumatic tire has a first conductive layer that is disposed between a carcass ply, an edge portion of the breaker rubber and the sidewall portion, a second conductive layer that is in contact with the first conductive layer and is disposed between the tread rubber and the carcass, and a pen rubber layer that extends from the second conductive layer to a surface of the tread portion, wherein the first conductive layer, the second conductive layer, and the pen rubber layer each have an intrinsic volume resistivity of 1×108 ?·cm or less, the carcass ply contains a conductive fibrous material having an intrinsic volume resistivity of 1×108 ?·cm or less and has a structure that the carcass ply is in contact with the clinch portion

Abstract: A run-flat tire of the present invention is a pneumatic radial tire for passenger vehicles which has a carcass composed of plies of radially arranged cords toroidally extending between a pair of bead portions, and the a W/L ratio of the section width W to the outer diameter L of the tire is 0.25 or less.

Abstract: A reinforced rubber article comprising a rubber article and a fibrous layer embedded into the rubber article. The fibrous layer contains monoaxially drawn fibers having at least a first layer, where the first layer contains a polymer, a plurality of void-initiating particles, and a plurality of voids. Methods of forming the reinforced rubber article are also disclosed.

Abstract: A reinforced rubber article comprising a rubber article and a fibrous layer embedded into the rubber article. The fibrous layer comprises monoaxially drawn fibers having at least a first layer, where the first layer contains a polymer and a plurality of voids. The voids are in an amount of between about 3 and 15 percent by volume of the first layer. Methods of forming the reinforced rubber article are also disclosed.

Abstract: Disclosed is a pneumatic tire comprising (A) reinforcing layer comprising a plurality of reinforcing cords or wires coated with a rubber composition, wherein (B) a film layer, (C) an elastomer layer, and (D) a film layer comprising ethylene-vinyl alcohol copolymer are sequentially laminated on the tire inner surface side of reinforcing layer (A), and the product of Young's modulus Eb (MPa) and thickness Gb (mm) of film layer (B) is equal to or more than 5 kN/m, wherein the reinforcing layer having improved durability.

Abstract: A vulcanizable layered composition comprising at least two layers and at least one tie layer. The first layer of the two layers comprises an fluid permeation prevention layer, the second layer of the two layers comprises at least one high diene rubber, and the tie layer comprises about 50 to about 100 weight % of at least one halogenated isobutylene containing elastomer; up to about 50 weight % of at least one high diene elastomer; about 20 to about 50 weight % of at least one filler; up to about 30 weight % of at least one processing oil; about 1 to about 20 parts per hundred (phr) of at least one tackifier; and about 0.2 to about 15 parts per hundred of rubber (phr) of a curing system for the elastomers. The fluid permeation prevention layer preferably comprises a thermoplastic engineering resin component and an elastomer component.

Abstract: A tire having a radial carcass reinforcement, including at least one layer of reinforcing elements, said tire comprising a crown reinforcement, which is itself covered radially with a tread, said tread being joined to two beads via two sidewalls. The reinforcing elements of at least one layer of the carcass reinforcement are hybrid cords having at least two layers. At least one strand of the core of each of said hybrid cords includes textile multifilament yarns. The strands of the intermediate and/or outer layers are metallic, and at least one inner layer is sheathed with a layer including a polymeric composition such as a crosslinkable or crosslinked rubber composition.

Abstract: A tire having a radial carcass reinforcement, having at least one layer of reinforcing elements, said tire comprising a crown reinforcement, which is itself covered radially with a tread, said tread being joined to two beads via two sidewalls, wherein at least 90% of the reinforcing elements of at least one layer of the carcass reinforcement are non-wrapped metal cords having in what is called the permeability test a flow rate of less than 20 cm3/min, wherein at least 1% of the reinforcing elements of said at least one layer of the carcass reinforcement are capillary tubes and wherein, in a plane of section perpendicular to the axis of the capillary tube, the ratio of the open area to the area of material is greater than 0.4%.

Abstract: An of object of the present invention is to provide a pneumatic tire which exhibits improved durability of a bead portion due to further suppressing compression strain at a carcass ply fold-up portion and, in particular, suppressing fatigue fracture at the carcass ply fold-up portion. Cord distance between the carcass main body and the carcass ply fold-up portion gradually decreases from the bead core toward the outer side in the tire radial direction to reach the minimum value a, then gradually increases to the maximum value b; provided that height Hf of a flange of an application rim, measured from a base line of the application rim in a state where the tire is assembled with the rim and inflated at a prescribed internal pressure, is 1, heights HA and HB measured from the base line to the positions on the carcass main body corresponding to the minimum and the maximum values, respectively, and the maximum height HT of the tire satisfy relationship formulae below, HT?8.00 1.26?HA?2.14 2.43?HB?3.

Abstract: A pneumatic tire including: a cylindrical annular structure; a rubber layer, which will become a tread portion, provided along a circumferential direction of the annular structure on an outer side of the annular structure; a carcass portion provided on at least both sides in a width direction of the cylindrical structure including the annular structure and the rubber layer; and an extending portion that extends from both sides in the width direction of the annular structure farther outward in the width direction than a ground contact edge on the outer side in the width direction of the tread portion, and that is provided in plurality on both sides in the width direction along the circumferential direction of the annular structure.

Abstract: A tire with a radial carcass reinforcement made up of at least one layer of metal reinforcing elements, the tire comprising a crown reinforcement itself capped radially with a tread, the tread being connected to two beads via two sidewalls. At least 70% of the metal reinforcing elements of at least one layer of the carcass reinforcement are non wrapped cables which, in what is known as the air-wicking test, display a flow rate of less than 2 cm3/min, and at least 10% of the metal reinforcing elements of the at least one layer of the carcass reinforcement are cables which, in what is known as the air-wicking test, display a flow rate of greater than 4 cm3/min.

Abstract: Tire component which is not in contact with air or with an inflation gas, comprising a rubber composition based on (a) an elastomeric matrix based on natural rubber, (b) a reinforcing filler, (c) from more than 2.5 to 8.5 phr of sulphur and (d) a dihydrazide compound corresponding to the following formula: in which R is a divalent hydrocarbon radical chosen from substituted or unsubstituted aromatic radicals having 6 to 20 carbon atoms, linear or branched, saturated or unsaturated, aliphatic radicals having 2 to 20 carbon atoms, and n is equal to 0 or 1. These tire components are more particularly those which comprise thread-like reinforcing elements, more especially metallic thread-like reinforcing elements, such as the carcass or crown plies of the tire.

Abstract: The present invention relates to a method of increasing the high-speed performance of a carcass structure in a tyre for vehicle wheels. The method includes: preparing at least one hybrid yarn (13) and assembling a carcass structure (2) comprising at least one carcass ply (3a, 3b) substantially built on cords (12) comprising the hybrid yarn (13). The hybrid yarn (13) comprises a plurality of filaments (14a, 15a) obtained from a first multi-filament yarn (14) of polyester and a second multi-filament yarn (15) having a decay of the modulus with the temperature lower than 20%. Each of the first multi-filament yarn (14) and second multi-filament yarn (15) comprises a plurality of individual filaments (14a, 15a). The individual filaments (14a) of the first multi-filament yarn (14) are at least partly mixed in proportions of at least 50% with the individual filaments (15a) of said second multi-filament yarn (15).

Abstract: A tire having a radial carcass reinforcement, comprising at least one layer of metal reinforcing elements, said tire comprising a crown reinforcement, which is itself covered radially with a tread, said tread being joined to two beads via two sidewalls. The metal reinforcing elements of at least one layer of the carcass reinforcement are non-hooped cords having, in the permeability test, a flow rate of less than 20 cm3/min and, in a radial plane, at least over part of the meridian profile of the tire, the thickness of the rubber compound between the inner surface of the cavity of the tire and that point of a metal reinforcing element of the carcass reinforcement which is closest to said inner surface of the cavity is less than or equal to 3.

Abstract: Various embodiments of a pneumatic tire include a tread portion, a first bead portion and a second bead portion which are axially spaced, a first sidewall portion and a second sidewall portion and a first and second carcass ply. The first carcass ply includes a main portion which extends circumferentially about the tire from the first bead portion to the second bead portion, a first turned-up portion around the first bead portion and a second turned-up portion around the second bead portion such that the first and second turned-up portions each have an end which terminates along the tread portion. The second carcass ply extends circumferentially about the tire along the first sidewall and along the second sidewall. The second carcass ply has a first end and a second end which terminates in the lower portion of the tire.

Abstract: A pneumatic tire has a tread rubber formed by a nonconductive rubber and a side wall rubber formed by the nonconductive rubber. An outer surface of the side wall rubber is provided with a band-like diametrical conductive portion which is formed by a conductive rubber and extends along a tire diametrical direction. An outer end of the diametrical conductive portion is exposed to a ground-contacting surface or is connected to a conductive rubber member which is exposed to the ground-contacting surface. An inner end of the diametrical conductive portion is exposed to a rim contact region or is connected to a rim strip rubber formed by the conductive rubber. A narrow groove is formed by depressing an outer surface of the diametrical conductive portion and extends in a tire diametrical direction in a side wall portion.

Abstract: A pneumatic tire carcass having at least one ply of stabilizing fabric. The stabilizing fabric has a machine direction and a cross machine direction. A plurality of high tenacity reinforcing yarn elements are disposed in the cross-machine direction. A plurality of machine direction yarn elements of relatively lower tenacity than the reinforcing yarn elements are disposed in the machine direction. The stabilizing fabric has an adhesion layer on both sides of the stabilizing fabric and a patterned coating of a tackifing material overlaying a portion of at least one side of the stabilizing fabric. A segment of the stabilizing fabric is disposed within the carcass with the machine direction yarn elements being in substantial alignment with the direction of tire rotation and with the cross-machine direction oriented radially relative to the direction of tire rotation.

Abstract: A pneumatic tire has a tread rubber which is formed by a nonconductive rubber and includes a conductive portion. The conductive portion comprises a first, second, third and fourth conductive portions. The first conductive portion extends radially inward from the ground-contacting surface and reaches a cap portion. The second conductive portion is provided continuously in the first conductive portion, extends to one side in the tire width direction between the cap portion and a base portion, and reaches a carcass layer. The third conductive portion is connected to the second conductive portion, extends radially inward from an outer surface of the base portion, and reaches the bottom surface of the tread rubber. The fourth conductive portion is provided continuously in the third conductive portion, extends to another side in the tire width direction along the bottom surface, and reaches the carcass layer.

Abstract: The invention provides a radial tire, in which a single rubber coated cord (C1) is used to form a carcass layer (1) without generating any material jointed portion and which is favorable in weight balance, external appearance, and quality and excellent in productivity, the carcass layer (1) is formed from at least one cord row layer (11A) formed by cutting a rubber coated cord (C1), which is formed to make an external shape of a cross section elliptical, one by one, to align and bond the same in a tire circumference direction, and the cord row layer is jointed only in a single location on a tire circumference to generate little overlap.

Abstract: A tire for a self-inflating tire system includes an annular air tube-receiving groove formed within a tire carcass wall at a prescribed radial location. The groove has an access opening, a primary internal groove chamber dimensioned and profiled for close receipt of an annular air-pump tube. A secondary expansion chamber of the groove communicates with the internal groove chamber for operationally receiving a flattened air-pump tube extended portion during tire operation. A passageway is located at a prescribed outlet location along the annular air tube-receiving groove, the passageway extending from the groove to an axially inward terminal end within the tire carcass wall separated from a tire inner liner by a removable wall partition of reduced sectional thickness.

Abstract: A tire for a motorcycle having a transverse curvature ratio of at least 0.20 and a total height/width ratio of at least 0.5, includes a radial carcass including textile cords made from lyocell cellulose fibre.

Abstract: Tire including a continuous pressure membrane. The tire includes a carcass, a rubber layer surrounding the carcass, and a belt. The carcass includes at least one continuous pressure membrane defining a generally U-shaped cross section. The pressure membrane includes a crown portion, a first sidewall portion, and a second sidewall portion connected with the first sidewall portion by the crown portion. The belt may be composed of at least one additional continuous pressure membrane adjacent the crown portion.

Abstract: A pneumatic tire comprising at least one heat and flame resistant non-structural barrier layer of polymeric yarns, the barrier layer being positioned outward of the tire carcass cords in the crown and sidewall sections of the tire wherein the barrier layer extends from a point above the bead of the tire but below the flange of the outward rim of the wheel across the crown to the corresponding point on the inward rim of the wheel, wherein the barrier layer also extends in a circumferential direction around the tire and comprises yarns of aromatic polyamide, flame retardant nylon, flame retardant polyester or mixtures thereof.

Abstract: A pneumatic tire including a carcass layer wherein reinforcing cords are arranged in a tire circumferential direction and ends thereof in a tire width direction extend to bead cores disposed in bead portions of both sides; and a belt layer including a layer provided on an outer side in a tire radial direction of the carcass layer. A range, inward in the tire width direction of ends of the belt layer in the tire width direction, is not less than 5% and not more than 95% of a maximum dimension of the belt layer in the tire width direction; and a carcass strength coefficient K of the carcass layer defined by the formula [carcass strength coefficient K (N/mm·kPa)]=[reinforcing cord count (cords/mm)]×[reinforcing cord strength (N/cord)]×[number of carcass layers]÷[maximum air pressure (kPa)] is such that 0 (N/mm·kPa)<K<0.15 (N/mm·kPa).

Abstract: A pneumatic tire has a belt ply buried in a tread portion and a carcass ply running into an inner peripheral side of an end portion of the belt ply from a pair of bead portions. The carcass ply was divided in a tire width direction at the tread portion. A division width of the carcass ply is equal to or more than 35% of a maximum width of the belt ply. An auxiliary ply formed by reinforcement cords extending at an angle within a range of ±20 degrees with respect to the tire width direction is arranged in such a manner as to overlap with the carcass ply in an inner peripheral side of the end portion of the belt ply and extend out to an inner side in the tire width direction than the division end portion of the carcass ply.

Abstract: The present invention provides an aircraft tire having a carcass structure capable of sufficiently satisfying recent demands for high pressure resistance without increase in tire weight. An aircraft tire 9 includes a pair of bead portions 2 and a carcass 4 made by stacking two or more carcass layers 3 composed of cords coated with rubber, which toroidally extend between the bead portions 2. Further, with respect to carcass layers 3 of the carcass 4 which are adjacent to each other, elongation at break of a widthwise outer carcass layer 3 is smaller than elongation at break of a widthwise inner carcass layer 3.

Abstract: Provided is a pneumatic tire having a high partial wear resistance and a low rolling resistance.

Abstract: A tire having a radial carcass reinforcement, comprised of at least one layer of metal reinforcing elements, said tire comprising a crown reinforcement, which is itself covered radially with a tread, said tread being joined to two beads via two sidewalls. The metal reinforcing elements of at least one layer of the carcass reinforcement are non-hooped cords having, in the permeability test, a flow rate of less than 20 cm3/min and at least one layer of the carcass reinforcement being provided on at least one side with textile threads oriented mainly along a direction parallel to that of the metal reinforcing elements of said at least one carcass reinforcement layer, said textile threads being corrugated about this main direction.

Abstract: A radial tire (1) for motor vehicle, comprising: a crown (2) surmounted by a tread (3) provided with at least one radially outer part (3a) intended to come into contact with the road; two inextensible beads (4), two sidewalls (5) connecting the beads (4) to the tread (3), a carcass reinforcement (6) passing into the two sidewalls (5) and anchored in the beads (4); the crown (2) being reinforced by a crown reinforcement or belt (7) placed circumferentially between the carcass reinforcement (6) and the tread (3); a radially inner elastomer layer (3b, 8) known as a “underlayer”, having a formulation different from the formulation of the radially outer elastomer layer (3a), this underlayer being placed between the radially outer layer (3a) of the tread (3) and the belt (7), wherein said underlayer comprises 50 to 100 phr of a copolymer based on stirene and on butadiene, preferably an SBR having in particular a Tg above ?40° C., a reinforcing filler and between 10 and 150 phr of a platy filler.

Abstract: A tire with a radial carcass reinforcement comprising a crown reinforcement comprising at least one layer of circumferential reinforcing elements distributed axially at a variable pitch. The layer of circumferential reinforcing elements comprises five parts, namely a central part, two intermediate parts and two axially outer parts, the value of the pitch in an intermediate part being less than the value of the pitch in the axially outer part axially separated from the central part by the said intermediate part, and the value of the pitch in an intermediate part being less than the value of the pitch in the central part.

Abstract: A tire comprising a reinforcing structure of the carcass type and comprising under the tread strip a crown reinforcing structure consisting of at least two layers of reinforcing elements. The carcass-type reinforcing structure is produced in the form of two half-layers extending at least from the shoulders to the beads and each having an end under the tread strip, the crown reinforcing structure comprises at least one layer of circumferential reinforcing elements which are distributed in the transverse direction with a variable pitch and the pitch between the circumferential reinforcing elements is at a minimum in the region of the layer of circumferential reinforcing elements that radially face the ends of each of the half-layers of the carcass-type reinforcing structure.

Abstract: The present invention relates to functionalizing agents that are particularly useful for functionalizing living rubbery polymers to make the polymer more compatible with fillers, such as carbon black and silica. These functionalizing agents are comprised of a boron containing compound having a structural formula selected from the group consisting of: wherein R is selected from the group consisting of hydrogen atoms, alkyl groups and aryl groups, wherein R1, R2, and R3 can be the same or different and are selected from the group consisting of alkyl groups, and aryl groups, and wherein R4 represents an alkylene group or a bridging aromatic group.

Abstract: A tire carcass to be used with any type of tire is shown herein. A tire carcass includes a first ply portion, a second ply portion, each ply portion having an inner sidewall ply, an outer sidewall ply, a first end, a second end, and a bead core, a bridge portion, wherein the first ends of the ply portions are separated by the bridge portion, and at least two bridge plies, wherein the bridge plies span the bridge portion, wherein each of the bridge plies have a first end and a second end.

Abstract: A carcass for a pneumatic tire includes a first annular bead, a second annular bead, a first continuous radial ply, a second continuous radial ply, and a third non-continuous radial ply. The first radial ply has two shoulder portions and two lateral edge portions. One lateral edge portion of the first ply extends from one shoulder portion of the first ply radially inward to a location proximal to the first annular bead. The other lateral edge portion of the first ply extends from the other shoulder portion of the first ply radially inward to a location proximal to the second annular bead. The second continuous radial ply has two shoulder portions and two lateral edge portions. One lateral edge portion of the second ply extends from one shoulder portion of the second ply radially inward to a location proximal to the first annular bead. The other lateral edge portion of the second ply extends from the other shoulder portion of the second ply radially inward to a location proximal to the second annular bead.

Abstract: A tire comprising a crown reinforcement formed of at least two working crown layers of reinforcing elements. The tire additionally comprises, in each shoulder, at least two layers formed by circumferential winding of a complex strip formed of two layers including continuous reinforcing elements passing from one layer to the other, the said reinforcing elements being parallel within a layer and crossed from one layer to the other at angles with respect to the circumferential direction that are identical in terms of absolute value, the said additional complex strip being radially adjacent to the edge of a working crown layer, and the axially outer end of the said additional complex strip being situated a distance from the equatorial plane of the tire that is at least equal to the distance separating from the said plane that end of the working layer to which it is adjacent.

Abstract: An aeroplane tire that operates at an inflation pressure in excess of 12 bar includes a crown, two sidewalls, two beads, a carcass ply reinforcement anchored in the two beads and including at least one ply of textile reinforcements, a crown reinforcement, and an electronic component. The crown reinforcement includes, radially from inside outward, a working block that includes plies of textile reinforcement, and a protective block that includes reinforcements directed substantially circumferentially. The electronic component has elongate overall shape and includes a passive radio frequency identification device transponder equipped with two antennas forming a dipole. The electronic component is positioned in the tire under the crown, radially on an inside portion in relation to the carcass ply reinforcement, and directed in a substantially axial direction.

Abstract: A pneumatic tire has a plurality of projections extending in a tire width direction while protruding out of an inner surface of a tire. The projections are formed in a region coming to an inner side in a tire width direction than an end portion of a belt layer embedded in a tread portion so as to be spaced in a tire circumferential direction.

Abstract: A motorized two-wheeled vehicle, comprising a radial carcass reinforcement formed of at least two layers of reinforcing elements, and comprising underneath the tread a crown reinforcement structure comprising of at least one layer of reinforcing elements. At least the tread surface comprises a first polymeric compound extending in at least the region of the equatorial plane and at least one second polymeric compound having physicochemical properties different from those of said first polymeric compound, the density of reinforcing elements in the radially inner carcass reinforcement layer being less than that in the radially outer carcass reinforcement layer.

Abstract: A tire (2) according to the present invention includes a tread (4), a pair of beads (8), and a carcass (10) having a radial structure. The carcass (10) has a first ply (32) and a second ply (34). The first ply (32) has a first cord. The first cord is formed by twisting three yarns. The yarn is constituted by an aramid fiber. A fineness of the yarn is equal to or higher than 800 dtex and is equal to or lower than 1100 dtex. The second ply (34) has a second cord. The second cord is formed by twisting three yarns. The yarn is constituted by the aramid fiber. A fineness of the yarn is equal to or higher than 800 dtex and is equal to or lower than 1100 dtex.

Abstract: A tire comprising at least one carcass-type reinforcing structure anchored on each side of the tire to a bead, each bead extending radially outwards in the form of a sidewall, the sidewalls radially towards the outside meeting a tread, and comprising, under the tread, a crown reinforcing structure consisting of at least one layer of reinforcing elements making angles of between 10° and 60° with the circumferential direction and known as a working layer, radially on the outside of the carcass-type reinforcing structure.

Abstract: A method for controlling a phase of moulding an annular fixing structure of a green tyre includes: introducing the green tyre into a curing mould including an inflatable bladder; delimiting at least one portion of the annular fixing structure by using a first and a second surface opposed to each other; bringing the first surface and the second surface so as to bring a portion of the first surface and a portion of the second surface into contact with a corresponding radially inner and axially inner surface portion and a corresponding radially inner and axially outer surface portion, respectively, the annular fixing structure generating a first squeezing pressure; inflating the inflatable bladder of the curing mould so as to bring the first and the second surfaces closer together, thus generating a second squeezing pressure in such a way as to shape the radially inner and axially inner surface portions and the radially inner and axially outer surface portions of the annular fixing structure.

Abstract: A pneumatic tire includes a carcass ply with carcass cords. The carcass cords comprise high tenacity vinylon fiber, polyethylene naphthalate fiber or polyalylate fiber. Viscoelasticity characteristics per one cord at 120° C. of the carcass cord satisfy the following equations (1) to (3): B>0??(1) B?0.0000437×A+0.042857??(2) B??0.00003636×A+0.163636??(3) (wherein “A” represents a product of complex modulus E*(N/cm2) and cross-sectional area “S” (cm2) of cord), and “B” represents a loss tangent tan?).

Abstract: A pneumatic tire comprises a tread portion, a pair of sidewall portions, a pair of bead portions, a pair of bead cores disposed one in each of the bead portions, and a carcass ply extending between the bead portions through the tread portion and sidewall portions, wherein the carcass ply is composed of windings of at least one carcass cord looped around the two bead cores in a helical manner and/or figure-of-eight manner.

Abstract: A runflat tire having an improved runflat durability and including sidewall-reinforcing rubber layer 10 having a crescent-shaped cross section disposed axially inward of carcass 6 in sidewall portion 3, wherein the carcass 6 comprises at least one carcass ply 6A in which carcass cords made of an aramid fiber or a polyethylene naphthalate fiber are arranged at an angle of 70 to 90° with respect to the circumferential direction and are covered with a topping rubber.

Abstract: A tire (2) includes a tread (4), a wing (6), a sidewall (8), a clinch portion (10), a bead (12), a carcass (14), a support layer (16), a belt (18), a band (20), an inner liner (22) and a chafer (24). A dimple (62) is formed in the sidewall (8) and the clinch portion (10). When air flows into the dimple (62), a turbulent flow is generated. By the turbulent flow, heat of the tire (2) is emitted to an atmosphere. The dimple (62) takes a planar shape of a circle. The dimple (62) has a diameter which is equal to or greater than 6 mm and is equal to or smaller than 18 mm. The dimple (62) has a depth which is equal to or greater than 0.5 mm and is equal to or smaller than 3.0 mm. The tire (2) has a CTT profile.

Abstract: A tire comprising at least one carcass-type reinforcing structure formed of at least one layer of mutually parallel reinforcing elements making angles of between 65° and 87° with the circumferential direction, and comprising, under the tread, a crown reinforcing structure consisting of at least one layer of reinforcing elements making angles of between 10° and 45° with the circumferential direction and known as a working layer, radially on the outside of the carcass-type reinforcing structure.

Abstract: A pneumatic radial tire having a structure where the lapel edge of the carcass is tucked under a belt layer and exhibiting high durability and steering stability can be easily produced using a carcass material of an existing size without preparing an ultra-wide carcass material. Two layers of carcasses (A, B) are extended from a tread portion (1) to a bead portion (3) via right and left sidewall portions (2), and the opposite ends thereof are turned down from the inside of the tire to the outside around right and left bead cores (4, 4). A belt layer (6) is arranged on the outer circumferential side of the carcasses (A, B) and the overall width of the carcasses (A, B) in the tire width direction is essentially equal and the carcasses (A, B) are offset in opposite directions in the tire width direction.

Abstract: A tire comprising at least one carcass-type reinforcing structure and comprising a crown reinforcing structure having at least one working layer.