Abstract: A composite hybrid cord comprising a core comprising of a first bundle of synthetic filaments having a filament tenacity of from 10 to 40 grams per decitex and a plurality of cabled strands helically wound around the core, each cabled strand comprising of a plurality of metal strands helically wound around a center second bundle of synthetic filaments that have a filament tenacity of from 10 to 40 grams per decitex. The ratio of the largest cross sectional dimension of the first bundle of synthetic filaments to the largest cross sectional dimension of the second bundle of synthetic filaments is from 1.5:1 to 20:1. The metallic filaments of the cabled strands have an elongation at break that is no more than 24 percent different from the elongation at break of the synthetic filaments of the first and second bundles.

Abstract: A process and apparatus for manufacturing tires for vehicle wheels, includes building, on a toroidal support, a carcass structure including at least one carcass ply associated, at axially opposite end edges thereof, with annular anchoring structures, the building step of the carcass structure includes forming at least one reinforcing structure, operatively associated with the annular anchoring structures through deposition on the toroidal support of at least one reinforcing element along a predetermined curvilinear deposition path. The deposition of the at least one reinforcing element includes the steps of: cutting to size a piece of at least one reinforcing continuous band-like element fed by a feeding device along a predetermined feeding direction, deforming the piece obtained according to the curvature of a deposition part of the deposition path intended to receive the piece, and depositing the deformed piece at the deposition part.

Abstract: A tire with two beads (11) and a radial carcass reinforcement (12) anchored in each bead by an upturn (15) which forms at least one loop around a circumferential bead reinforcement (13), said upturn—when viewed in meridian section—beginning at a point of origin (A1) that corresponds to the point of intersection between the carcass reinforcement and a line (D) perpendicular to the tire's rotation axis and passing through the radially innermost point (A) of the circumferential bead reinforcement (13). A feature of the tire is that when viewed in meridian section, the end (F) of the upturn (15) is located between said upturn (15) of the carcass reinforcement and the circumferential bead reinforcement (13).

Abstract: A tire for a heavy goods vehicle comprises two beads and a carcass reinforcement comprising a main part (161) wrapped within each bead around a bead wire core (171, 172) to form a turned-back portion (162), each bead comprising an additional reinforcement (163) and a filler profiled element extending the bead wire core radially outwards. This filler profiled element has, in any meridian plane, a triangular cross section and is formed of a stack in the radial direction of at least two polymer materials (11, 12, 13) in contact along a contact surface that intersects any meridian plane along a meridian line (112, 123).

Abstract: Sufficient strength of a joint portion is secured in a tire configured by joining together plural tire structuring members formed from a thermoplastic material. A welding thermoplastic material 43 that has been melted is extruded towards joining locations on two tire halves 17A formed from a first thermoplastic material that have been aligned so as to face each other and abut, such that the one tire half 17A and the other tire half 17A are welded together with the welding thermoplastic material 43. Degradation of the thermoplastic material forming the tire halves 17A is suppressed since the tire halves 17A are not themselves melted, and sufficient strength of the joint portion is secured.

Abstract: A heavy-load radial tire includes a bead apex rubber 8 composed of a high-elastic lower apex portion 11 and a low-elastic upper apex portion 12. The lower apex portion 11 has an L-shaped cross section composed of a bottom piece portion 11a disposed along the radially outer surface of a bead core 5 and a standing piece portion 11b standing from the axially inner end of the bottom piece portion 11a and radially outwardly extending along a ply main portion 6a of a carcass 6. At an outer end position P1 of a ply turnup portion 6b, the upper apex portion 12 has a thickness T1s of 0.50 to 0.75 times a core width Bw of the bead core 5. At an outer end position P2 of an outer wound-up portion 9o of a bead reinforcing cord layer 9, the upper apex portion 12 has a thickness T2s of 0.57 to 0.90 times the core width Bw. The core width Bw is 0.68 to 0.80 times a bead bottom width BL.

Abstract: A method for locking a tyre to a wheel rim, includes the steps of mounting a tubular tyre locking element on the wheel rim, which tubular locking member is arranged with a valve, which valve is pushed through a hole in the rim; mounting a tyre on the rim such that the tyre encloses the tubular tyre locking element and a pressure chamber is obtained between the tyre locking element and the tyre; pressurizing the tubular tyre locking element via the valve such that it expands, whereby the beads of the tyre are pressed against the flanges of the wheel rim; inserting a hollow needle through the tyre and into the pressure chamber, which hollow needle is connected to a pressurized air source; pressurising the pressure chamber to desired pressure, removing the hollow needle; and sealing the hole caused by the needle with sealing fluid or plug.

Abstract: A tire for a heavy vehicle with a radial carcass reinforcement anchored in two beads by wrapping around bead wires. In a radial plane, radially on the inside of the radially innermost point of the at least one layer of carcass reinforcement and axially on the outside of the geometric center of the bead wire, the radius of curvature at a point on the exterior surface of the bead is greater than the radius of curvature at the point of orthogonal projection of the point of the exterior surface of the bead onto the at least one layer of carcass reinforcement.

Abstract: A tire includes at least one outer structural element, wherein the at least one outer structural element is at least partially coated by at least one colored coating layer including a colored composition including (a) 5% by weight to 50% by weight with respect to the total weight of the dry colored composition, of at least one crosslinked polymeric compound obtained by reacting (a1) at least one thermoplastic polyurethane with (a2) at least one polyisocyanate; (b) 10% by weight to 80% by weight with respect to the total weight of the dry colored composition, of at least one thermoplastic polymeric compound having a glass transition temperature higher than or equal to 20° C., and (c) 3% by weight to 50% by weight, with respect to the total weight of the dry colored composition, of at least one coloring agent. Preferably, the at least one structural element is at least one of the tire sidewalls.

Abstract: A tire includes bead insulation compound that is formed by combining a rubber component, a bituminous hydrocarbon resin, and a processing oil that includes naphthenic oil.

Abstract: The present invention is directed to a pneumatic tire comprising at least one component selected from the group consisting of apexes, flippers and chippers, the at least one component comprising a rubber composition, the rubber composition comprising a diene based elastomer and from 1 to 30 parts by weight, per 100 parts by weight of elastomer (phr), of a polybenzobisoxazole (PBO) short fiber having a length ranging from 0.5 to 20 mm having a thickness ranging from 10 to 30 microns, and from 1 to 50 phr of an epoxidized polyisoprene having a number-average molecular weight of 5000 to 100000.

Abstract: A pneumatic tire according to the present invention includes bead units and a carcass layer at least. The bead units includes an inside bead core and an inside bead filler located in an inside under an equipment on a vehicle, and an outside bead core and an outside bead filler located in an outside. The carcass layer includes a main body and turnbacks. The main body extends from the inside bead core to the outside bead core. Each of the turnbacks is turned back from the inside bead core or the outside bead core to an internal side of a belt layer. Here, each edge of the turnbacks provided at a tire inner peripheral side of the belt layer is located inside from each edge of the belt layer in a tread width direction. In addition, a height of the outside bead filler is lower than a height of the inside bead filler in a cross section along the tread width direction.

Abstract: A tire having a section height, a maximum section width, an upper section above the maximum section width, and a lower section below the maximum section width is provided. The tire includes a circumferential tread, a pair of sidewalls, a pair of bead regions each having a bead core, and at least one carcass ply extending circumferentially about the tire from one bead region to the other. The at least one carcass ply is wound outwardly about at least one of the bead cores and extends toward the tread to form a turn-up portion that terminates at a turn-up end. The turn-up portion includes a concave segment that begins in the bead region and ends short of the turn-up end or at the turn-up end.

Abstract: A tire is provided that includes a crown with a mid-plane S, two sidewalls, a first bead, of diameter ?1, intended to be positioned on the outboard side of a vehicle, and a second bead, of diameter ?2, intended to be positioned on the inboard side of a vehicle, such that ?1>?2. When the tire is mounted on its working rim and inflated to its nominal pressure, the mid-plane S of the crown is axially offset towards the first bead relative to a mid-plane B of the beads by a positive or zero distance D.

Abstract: A tire configured from joining together plural tire frame members formed from a thermoplastic material in which sufficient strength of the joint portion is secured. Two tire halves 17A formed from a first thermoplastic material are supported by a tire supporting section 40 so as to be aligned with each other and abutting, while rotating this configuration melted welding thermoplastic material 43 is extruded from a nozzle 46 towards the joining location, and the welding thermoplastic material 43 is pressed by a flattening roller 48. The one tire half 17A and the other tire half 17A are thereby welded together with the welding thermoplastic material 43. Since the tire halves 17A themselves are not melted, deterioration of the thermoplastic material forming the tire halves 17A is suppressed, and sufficient strength of the joint portion is secured.

Abstract: An object is to both provide a tire that is formed from a resin material, and in particular a thermoplastic material, and to also suppresses incorporation of air, raising durability. A tire 10 includes: a ring shaped tire case 23 formed from a resin material; a reinforcement cord 26 having a higher rigidity that that of the resin material, wound in a spiral shape on the outer peripheral section of the tire case 23 and having at least a portion of the reinforcement cord 26 embedded in and making close contact with the outer peripheral section of the tire case 23 when viewed in a cross-section along the axial direction of the tire case 23; and a tread 30 provided on the radial direction outside of a reinforcement cord layer 28 formed by the reinforcement cord 26. Accordingly air can be suppressed from being incorporated and durability can be raised.

Abstract: A tire comprising at least one reinforcement structure of the carcass type anchored on either side of the tire in a bead, the base of which bead is intended to be mounted on a rim seat, the reinforcement structure extending circumferentially from the bead towards the sidewall, at least one arrangement of main cords along a substantially circumferential path being arranged substantially adjacent to the structure, the arrangement of the cords of the at least one arrangement being such that the number of main cords arranged on the axially inner side relative to the structure is greater than the number of main cords arranged on the axially outer side relative to the structure.

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 pneumatic radial tire has a nominal section width of 255 mm or more, and an outer diameter of 720 mm or more. At least one carcass layer is constructed between paired right and left bead cores with the two end portions of the carcass layer being folded back from the inside to the outside of the tire around the respective bead cores in a way that their corresponding bead fillers are enclosed in the two folded end portions thereof. The length of each bead filler in the radial direction of the tire is 5% to 20% of the section height of the tire. The carcass layer is formed of organic fiber cords each made of at least one type of organic fiber which has an expansion ratio of 1% to 5% when a load of 2.0 cN/dtex is applied to the organic fiber. A sheet-shaped rubber reinforcement layer with a thickness of 0.5 mm to 2 mm, whose rubber has a larger rigidity than that of the sidewall section, is interposed between the carcass layer and a sidewall section on each side of the tire.

Abstract: The invention is directed to increasing the endurance of a tire by providing an oxidation shield strip located in the vicinity of a critical area of the tire. The oxidation shield strip acts as a local oxygen diffusion barrier.

Abstract: There is provide a pneumatic radial tire for heavy loads capable of more effectively preventing a breakdown due to separation of a rubber chafer in an area corresponding to a bead heal portion than before. A pneumatic radial tire 10 for heavy loads has a pair of bead portions 12, a bead core 14 which is embedded in each of the bead portions 12, a radial carcass 16 extending from one bead portion 12 to the other bead portion 12 and turned around the bead core 14 from an inner side to an outer side of the bead portion 12 in a width direction of the tire to be anchored, a rubber chafer 22 disposed over the radial carcass 16 in the opposite side of the bead core 14.

Abstract: A tire having a radial carcass reinforcement comprising a crown reinforcement formed of at least two working crown layers of inextensible reinforcement elements, which are crossed from one ply to the other, forming angles of between 10° and 45° with the circumferential direction, which itself is topped radially by a tread, said tread being joined to two beads by means of two sidewalls.

Abstract: The tire includes a first and second axially-spaced bead core, a carcass having at least one belt extending under a tread, and a first ply layer having first and second ends, a first end is located axially outside and adjacent a first bead core, and a second end that is located axially outside and adjacent a second bead core. The carcass further comprises first and second shoulder ply layers each shoulder ply layer having first and second ends, a first end is located under the tread belt, the shoulder ply extending down the side wall region with the second end folding from a position axially outside a respective bead core to a position axially inside and around the bead core. The carcass further comprises an additional reinforcement layer which wraps around the bead and is preferably positioned between the shoulder ply and the first ply layer, although not required.

Abstract: A heavy duty tire comprises: a carcass ply of cords extending between bead portions; and a bead reinforcing layer disposed in each of the bead portion. The carcass ply has edges winded around the bead cores so that the winded portion has a base part extending along the bead core from the axially inside to the axially outside thereof, and a radially outer part extending axially inwards on the radially outside of the bead core. The bead reinforcing layer comprises: a curved portion extending along the base part; an axially outer portion extending radially outwardly, separation from the base part; and an axially inner portion extending radially outwardly along a main portion of the carcass ply. The bead reinforcing layer is composed of a ply of cords laid side by side, and the spacing Da of the cords in an axially outer part beneath the bead core, of the curved portion is not less than 1.5 times and not more than 3.0 times the spacing Db of the cords in the axially outer portion.

Abstract: A pneumatic tire construction is described suitable for severe loading conditions. The tire includes a bead portion further having an apex which extends radially outward of the bead core, and a first turnup pad located adjacent said chafer, and a second turnup pad located adjacent said first turnup pad, wherein the first turnup pad has a G? less than the G? of the second turnup pad. Alternatively, the first turnup pad may be located adjacent to the rim flange and the second turnup pad may be located axially inward of the first pad. The second turnup pad is preferably thicker and longer than the first turnup pad.

Abstract: An elastomeric composition includes at least one diene elastomeric polymer, at least one salt or oxide of a transition metal belonging to groups IIIA, IVA, VA, VIA, VIIA, or VIIIA of the Periodic Table, at least one vulcanization accelerator, sulphur or derivatives thereof, and at least one reinforcing filler. The elastomeric composition is substantially free of zinc or derivatives thereof. A tire for a vehicle wheel including at least one component including the elastomeric composition and a tread band for a tire including the elastomeric composition are also disclosed. The at least one diene elastomeric polymer may include a glass transition temperature lower than 20° C. The at least one salt of a transition metal may be an organic or inorganic metal salt. The at least one oxide of a transition metal may include one or more of: cobalt oxide; cerium oxide; molybdenum oxide; manganese oxide; and iron oxide.

Abstract: A pneumatic tire may use a combination of high modulus and low modulus plies to provide increased fatigue compression durability without significantly increasing the weight of the tire.

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: In the invention, a run-flat tire including a pair of bead portions having an annular first bead, sidewall portions respectively extending to an outer side in a tire diametrical direction from the bead portions, reinforce rubber layers arranged in the sidewall portions, a tread portion connecting outer peripheral side ends of the sidewall portions via shoulder portions, wherein the run-flat tire includes an annular inflating portion provided on the outside in a tire width direction of the bead portion arranged on the outside of the vehicle, and having an inner circumferential side face opposing to an outer circumferential curved side face of a rim flange when a regular rim is fixed; and an annular second bead arranged at the annular inflating portion, wherein the reinforce rubber layer arranged on the outside of the vehicle has a rubber hardness of 60 to 82 degree, the reinforce rubber layer arranged on the inside of the vehicle has a rubber hardness of 65 to 90 degree, and the reinforce rubber layer arranged

Abstract: A heavy duty tire comprises a bead filler disposed in each bead portion (4). The bead filler (8) comprises: a main layer (13) having a complex elastic modulus E*2 of from 2.0 to 6.0 Mpa; and a fastening layer (12) having a complex elastic modulus E*1 of from 20 to 70 Mpa. The fastening layer comprises a base portion (12B) and an axially inner portion (12A) to have a L-shaped cross section. The height Ha of the axially inner portion (12A) is 35 to 100 mm and not more than the height Hb of the main layer (13), and the radial height Hb is 40 to 100 mm, each from the bead base line.

Abstract: It is an object of the present invention to reduce fretting between strands in a steel cord, to suppress reduction in cord strength caused by running, to enhance rubber penetrability, and to improve tire durability. The steel cord includes a cord main portion 19 of a triple layer-stranding structure including: a core 16 formed from one core strand f1, an inner sheath 17 including N (2 to 5) inner sheath strands f2 stranded with a stranding pitch Pi around the core; and outer sheath 18 formed from M (6 to 11) outer sheath strands f3 stranded with a stranding pitch Po around the inner sheath. Diameters of the strands f1, f2 and f3 are equal to each other, and stranding directions of the sheaths 17 and 18 are the same. A difference (|Ai?Ao|) between a stranding angle Ai of the inner sheath strand f2 and a stranding angle Ao of the outer sheath strand f3 is greater than 1° and smaller than 3°.

Abstract: A tire, which has a maximum section width, an upper section above the maximum section width, and a lower section below the maximum section width, includes a circumferential tread, a pair of sidewalls, and a pair of bead portions. The tire further includes at least one carcass ply extending circumferentially about the tire from one bead portion to the other and first and second reinforcement plies extending circumferentially about the tire. The first and second reinforcement plies are provided between the at least one carcass ply and at least one of the sidewalls of the tire. The first and second reinforcement plies include lower ends that terminate in the lower section of the tire and upper ends that terminate in the upper section of the tire.

Abstract: Tire having two beads, at least one bead 1 of which has a seat 11 inclined toward the outside, this seat 11 being extended axially and radially to the outside by a lateral part 12. This bead 1 includes an anchoring device formed from at least one circumferential bead reinforcing element 5 and from a wedge-shaped profiled element 7 made of a rubber compound. A radial carcass reinforcement 4 is anchored in each bead to the circumferential bead reinforcing element 5, this tire being characterized in that the outwardly inclined bead seat 11 includes at least one circumferentially continuous rib 9 making at least one complete revolution, said at least one rib 9 being located axially to the outside of a plane perpendicular to the axis of rotation of the tire and axially tangential to the outside of the circumferential bead reinforcing element 5 in order to create a continuous line of contact pressure equal to or greater than the inflation pressure of the tire.

Abstract: A pneumatic tire comprising a tread portion 1, a pair of sidewall portions 2, a pair of bead portions 3, a carcass 5 comprised of at least one carcass ply having a main body portion toroidally extending between bead cores 4 each embedded in the respective bead portion 3 and a turnup portion 5b wound around the bead core 4 from inside to outside in a widthwise direction of the tire and a side rubber 9 arranged outside of the carcass in the widthwise direction, characterized in that a thin-walled recess 10 is formed inward from a tire maximum width position W in the radial direction and outward from a radially outer end of the turnup portion of the carcass at a posture of mounting the tire on an approved rim so that a minimum size t of rubber gauge in the side rubber as measured in a normal direction drawn from the outermost carcass ply is within a range of 2.5-4.5 mm.

Abstract: Provided is an ultra-low profile pneumatic radial tire for SUV or the like having an aspect ration of 55% or less and a tire outer diameter of 720 mm or more, which has improved load durability while managing a weight reduction without deteriorating driveability. A carcass layer (4) thereof is configured as a single ply, and both ends thereof are folded back around left and right bead cores (7) so as to wrap bead fillers (8). A folded-back portion (4t) is wrapped on the inner side of an end of a belt layer (5) in a range not greater than 10% of the maximum width of the belt layer (5). The hardness of the bead fillers is 65 to 80 in terms of JIS durometer A hardness, and a height hb of the bead fillers (8) from a bead base is brought to 10 to 20% of the height H of a tire cross-section.

Abstract: To provide a pneumatic tire capable of improving the durability of connection points between partition wall parts and a tire inside surface. In a pneumatic tire 10, partition wall parts 24 that extend inward in a tire radial direction from a tire inside surface 17 of tire shoulder parts 21 and whose tire radial direction inside ends contact a rim 12 are disposed. A pair of right and left reinforcement layers 38 are disposed in regions ranging from the partition wall parts 24 to tire side parts 20 via connection parts 29 between the partition wall parts 24 and the tire inside surface 17 such that the reinforcement layers 38 continue from the partition wall parts 24 to the tire side parts 20 via the connection parts 29 between the partition wall parts 24 and the tire inside surface 17.

Abstract: An annular core stranded bead wire having a reduced weight and offering ease in manufacturing and handling and a vehicle tire using such a bead wire are provided. The annular core stranded bead wire 2 has a metal annular core 11 and a sheath layer 13 constituted of a side wire 12 wound in a spiral pattern around the annular core: the side wire 12 is prepared by wrapping a side wire main body 21 made of aramid fiber with a pair of steel wires 22.

Abstract: There are provided an annular concentric stranded bead cord which can realize a reduction in weight while ensuring its strength, a method for manufacturing the same and a vehicle tire. The manufacturing method is a method for manufacturing an annular concentric stranded bead cord by forming a sheath layer by winding spirally a lateral wire round an annular core. After the sheath layer has been formed, the lateral wire is annealed in a pressure-reduced inactive gaseous atmosphere with an annealing quantity which exceeds a heating quantity (temperature×time) which is necessary for vulcanization of a vehicle tire with the annular concentric stranded bead cord embedded in a rubber of the vehicle tire when building the same and is shaped so that “Diameter shaping ratio (%)=H/D×100” becomes 20% or larger and 105% or smaller.

Abstract: A tire and wheel rim assembly comprising a wheel rim having flange portions and ledge portions, wherein each ledge portion has at least one circumferentially continuous groove with a circumferentially continuous surface. The assembly further includes a tire having bead regions comprising a ledge portion having a toe, a heel, and at least one circumferentially continuous rib with a peak, wherein the at least one circumferentially continuous rib of the tire extends radially into the at least one circumferentially continuous groove of the wheel rim.

Abstract: A tire 2 comprises a tread 4, a sidewall 6, a bead 8, a carcass 10 and a belt 12. The belt 12 includes a belt ply 26. The belt ply 26 is formed by a ribbon 28 wound spirally in a circumferential direction of the tire 2. The carcass 10 includes a first carcass ply 22 and a second carcass ply 24 provided on an outside in a radial direction of the first carcass ply 22. The first carcass ply 22 is turned up around the bead 8. The first carcass ply 22 includes a turned-up portion 34 extended almost outward in the radial direction and a turned-up end 36 positioned on an outside in the radial direction of the turned-up portion 34. The turned-up end 36 is positioned on an inside of the second carcass ply 24.

Abstract: A pneumatic tire including a circumferential tread, two spaced apart beads, and sidewalls connecting said beads and tread, wherein said tire sidewall contains at least one internal annular sidewall insert including at least two annular segments, the at least two annular segments including first and second adjacent annular segments; wherein said first and second annular segments are disposed with an interface therebetween; wherein each of the at least two annular segments includes a rubber composition comprising at least one diene based rubber and at least one vulcanization modifier selected from the group consisting of ?,?-bis(N,N?-dihydrocarbylthiocarbamamoyldithio)alkanes, bismaleimides, and biscitraconimides; and wherein the concentration of vulcanization modifier in the first annular segment is less than the concentration of vulcanization modifier in the second annular segment.

Abstract: A pneumatic tire including: a pair of beads provided to face each other in a tire width direction; a carcass formed across the pair of beads; and an inner liner provided on an inner side of the carcass in a tire radial direction, the inner liner having an elastic modulus that is higher in the tire width direction than in a tire circumferential direction.

Abstract: A pneumatic tire includes a tread, two inextensible annular beads, a carcass ply having two turnup end portions, and an annular cap structure encompassing one of the turnup end portions. Each turnup end portion is wrapped around one of the annular beads. The cap structure has a U-shaped cross-section for surrounding the turnup end portion. The cap structure is constructed of reinforced fabric with fibers oriented in the range from ?45° to +45° with respect to a radial direction of the pneumatic tire.

Abstract: A pneumatic tire includes a tread, two annular bead portions, a carcass ply having two turnup end portions, a first reinforcing structure disposed at one of the bead portions, and an annular first cap structure encompassing a first end portion of the first reinforcing structure. Each turnup end portion is wrapped around one of the annular bead portions. The first reinforcing structure is disposed at one of the bead portions. The first cap structure encompasses the first end portion of the first reinforcing structure. The first cap structure has a U-shaped cross-section for surrounding the first end portion. The first cap structure is constructed of reinforced fabric with fibers oriented in the range from ?45° to +45° with respect to a radial direction of the pneumatic tire.

Abstract: Provided is a pneumatic tire securing better driving stability and having enhanced load stability. Carcass plies are configured on respective two plies, and the direction of the cords of the two carcass plies crosses over each other and is set at an angle of 75 to 88° to the tire circumferential direction. A first filler rubber is included in each wound-up portion of the carcass plies, and a cord reinforcement layer is arranged on an outer side of the first filler rubber in the tire width direction. A second filler rubber is arranged on an outer side of each wound-up portion of the carcass plies in the tire width direction. Out of the two carcass plies, the carcass ply located on an outer side of the tire has its wound-up end part overlaping an outer side of a main body portion of the carcass plies.

Abstract: A tire includes a carcass structure of a substantially toroidal shape, having opposite lateral edges associated with respective right-hand and left-hand bead structures, the bead structures including at least one bead core and at least one bead fiber; a belt structure applied to a radially external position with respect to the carcass structure, a tread band radially superimposed on the belt structure; a pair of sidewalls applied laterally on opposite sides with respect to the carcass structure; wherein the at least one bead core includes at least one first elongated element including at least one composite material including a plurality of elongated fibers embedded in a polymeric material, the composite material having a flexural modulus, measured according to Standard ASTM D790-03, at 23° C., not lower than or equal to 10 GPa, preferably 20 GPa to 200 GPa and at least one second elongated element including at least one metal wire.

Abstract: A pneumatic tire (10) according to the present invention includes a first side reinforcement layer (110) and a second side reinforcement layer (120). The first side reinforcement layer (110) has a plurality of reinforcement cords (110s), and the second side reinforcement layer (120) has a plurality of reinforcement cords (120s) each crossing the reinforcement cords (110s). Additionally, an inclination angle of each of the reinforcement cords (110s) and the reinforcement cords (120s) with respect to a circumferential line extending in a circumferential direction of the pneumatic tire (10) is 5 to 30 degrees. According to the pneumatic tire (10), high speed durability thereof can be further enhanced without reducing wear life of a shoulder portion thereof.

Abstract: Provided is a pneumatic tire securing better driving stability and having enhanced load stability. Carcass plies are configured on respective two plies, and the direction of the cords of the two carcass plies crosses over each other and is set at an angle of 75 to 88° to the tire circumferential direction. A first filler rubber is included in each wound-up portion of the carcass plies, and a cord reinforcement layer is arranged on an outer side of the first filler rubber in the tire width direction. A second filler rubber is arranged on an outer side of each wound-up portion of the carcass plies in the tire width direction. Out of the two carcass plies, the carcass ply located on an outer side of the tire has its wound-up end part overlaping an outer side of a main body portion of the carcass plies.

Abstract: A tire, which has a maximum section width, an upper section above the maximum section width, and a lower section below the maximum section width, includes a tread extending circumferentially about the tire, a pair of sidewalls, a pair of bead portions, and at least one carcass ply extending circumferentially about the tire from one bead portion to the other. The tire further includes first and second reinforcement plies extending circumferentially about the tire and being disposed between the at least one carcass ply and the tread and at least one of the sidewalls of the tire. The first and second reinforcement plies have lower ends that terminate in the lower section of the tire.

Abstract: A heavy duty tire having an improved durability in bead portions and comprising a carcass ply of steel cords, the end portions of which are turned up around bead cores from the axially inside to the axially outside of the tire, and a core protecting rubber having a complex elastic modulus of 50 to 80 Mpa, at least a part of which is located in a core inside region which is located axially inward of the bead core and is sandwiched between the axially inner surface of the bead core and the steel cords of the turnup portion of the carcass ply.