Abstract: In this pneumatic tire, the bead core has a predetermined wire array structure obtained by arranging wire cross-sections of bead wires in a cross-sectional view in a tire meridian direction. The following are defined in the wire array structure: a tangent line that contacts, from the side of a rim fitting face, an innermost layer in the tire radial direction and the wire cross-section on the innermost side and the outermost side in the tire lateral direction; contact points of the tangent line with respect to the wire cross-sections on the innermost side and the outermost side; a middle point of the contact points; and gauges in the tire radial direction from the contact points and middle point to the rim fitting face. In this case, the change rates of the gauges before and after rim assembly each are in the range of 10% to 60%.

Abstract: In a pneumatic tire, bead cores have a wire arrangement. In a cross-sectional view in a tire meridian direction, a tangential line and a contact point are defined. The tangential line contacts an innermost layer in a radial direction and the wire cross sections innermost and outermost in a lateral direction in the wire arrangement from a rim fitting surface side. The contact point of the tangent line is on the wire cross section on the outermost side. A gauge Wh in the lateral direction from the contact point to the rim fitting surface and an outer diameter ? of the bead wire have a relationship 2.0?Wh/??15.0. A radial height H2 of a contact portion between a body portion and a turned back portion of a carcass layer has a relationship 0.80?H2/H1?3.00 to a radial height H1 of the bead cores.

Abstract: In a pneumatic tire, bead cores have a wire arrangement. In a cross-sectional view in a tire meridian direction, a tangential line and a contact point are defined. The tangential line contacts an innermost layer in a radial direction and the wire cross sections innermost and outermost in a lateral direction in the wire arrangement from a rim fitting surface side. The contact point of the tangent line is on the wire cross section on the outermost side. A gauge Wh in the lateral direction from the contact point to the rim fitting surface and an outer diameter ? of the bead wire have a relationship 2.0?Wh/??15.0. A radial height H2 of a contact portion between a body portion and a turned back portion of a carcass layer has a relationship 0.80?H2/H1?3.00 to a radial height H1 of the bead cores.

Abstract: The pneumatic tire includes: a pair of bead portions; a pair of sidewall portions; a tread portion; a carcass; a reinforcing rubber layer, a tire widthwise cross-section of the reinforcing rubber layer having a substantially crescent shape; an inclined belt including at least one inclined belt layer formed by a plurality of cords extending at an inclination to a tire circumferential direction and covered with rubber; and an inner liner provided on an inner peripheral surface of a tire body in at least the tread portion. In a tire widthwise cross-sectional view, an edge of the inner liner is positioned farther outward in the tire radial direction than a tire maximum width position of the pneumatic tire and farther inward in the tire radial direction than a perpendicular from a tire widthwise edge of the inclined belt to the inner peripheral surface of the tire body.

Abstract: A tire 1 for a motorcycle comprises a tread portion 2 provided on an inner surface 2Si thereof with a sealant layer 11 for preventing puncture. In each half of a cross-sectional view of the tire 1, when the tread portion 2 is virtually divided into a center region 2C, a middle region 2M, and a shoulder region 2S, a thickness tm of the sealant layer 11 in the middle region 2M is larger than a thickness tc of the sealant layer 11 in the center region 2C.

Abstract: Pneumatic vehicle tire includes a carcass, a belt with at least three belt plies arranged one on top of the other in a radial direction and being arranged radially outside the carcass and a profiled tread arranged radially outside the belt. The at least three belt plies include a radially inner belt ply and a radially outer belt ply are working plies having parallel strength members that are embedded in rubber so that, when viewed in a circumferential direction of the vehicle tire, the strength members of the radially inner belt ply have an opposing axial direction of inclination to the strength members of the radially outer belt ply. A generally zero-degree ply is arranged between and in contact with the two working plies.

Abstract: A tire constructed with a plurality of reinforcement belts is provided. At least one of the reinforcement belts extends along the axial width of the tire summit and is constructed according to an equilibrium curve that is flat throughout the summit. The reinforcement belts include cable reinforcements that are substantially parallel to the equatorial plane. Substantial reductions in the tension experienced by the cables can be achieved to provide, as a result, improvements in e.g., tread wear.

Abstract: Tire comprising a crown reinforcement formed of at least two working crown layers of reinforcing elements, crossed from one layer to the other making with the circumferential direction angles comprised between 10° and 45°. A first layer S of polymer compound is in contact with at least one working crown layer and in contact with the carcass reinforcement, the said first layer S of polymer compound extending axially as far as at least the axial end of the tread and the complex dynamic shear modulus G*, measured at 10% and 60° C. on the return cycle, of the first layer S of polymer compound is greater than 1.35 MPa.

Abstract: A radial tire with a lightened belt structure (10) comprises a multilayer composite laminate (10a, 10b, 10c) of specific construction, with a first layer (10a) of rubber (C1) reinforced with preferably weakly heat-shrinkable circumferential textile monofilaments (110) with a diameter greater than 0.10 mm or assemblies of such monofilaments, for example, made of nylon or of polyester, this first layer radially (in the direction Z) surmounting two other layers (10b, 10c) of rubber (C2, C3, respectively) reinforced with monofilaments (120, 130) of high tensile steel. The first reinforcers have an envelope diameter between 0.20 mm and 1.20 mm and a density, measured in the axial direction Y, between 70 and 130 threads/dm, and the second and third reinforcers each have a diameter between 0.20 mm and 0.50 mm and a density, measured in the axial direction Y, between 100 and 180 threads/dm.

Abstract: A belt layer includes first and second main working belts and a reinforcement belt. A cord angle of the reinforcement belt is 6 to 9 degrees. A width of the reinforcement belt is equal to or wider than 50% of a tire-section width and not wider than a width of a narrower one of the first and second main working belts. When an intersection of the perpendicular line extending from a groove bottom center of a shoulder main groove to the reinforcement belt and an upper surface of the reinforcement belt is set as an origin, a ratio of a dimension from the origin to an end portion of the reinforcement belt to a half width of the reinforcement belt is not smaller than ?0.07 and not larger than 0.11.

Abstract: A tire with a circumferential reinforcement layer formed by spirally winding rubber strips in the same direction from different positions arranged in the width direction of the tire. The rubber strips (12A and 12B) are arranged with spaces in a part or the entirety of the tire in the width direction; among those end portions of the rubber strips, at least medial end portions (12Bs and 12Ae) that are located on the equatorial plane side of the tire are arranged at positions where the medial end portions completely overlap with rib-form land portions (2a) in the width direction of the tire; and the width of the rib-form land portions overlapping with the medial end portions is defined as W and the width of the rubber strips is defined as G, wherein a relationship G<W is satisfied.

Abstract: A tire includes a carcass structure including at least one carcass ply, a belt structure applied in a radially outer position with respect to the carcass structure and a tread band applied in a radially outer position with respect to the belt structure. The belt structure includes at least one reinforcing strip incorporating a plurality of reinforcing elements arranged substantially in the circumferential direction. The reinforcing elements include at least one high-elongation metal cord. The metal cord includes a plurality of intertwined strands and each strand includes a plurality of filaments. Advantageously all the filaments of each strand have a diameter not greater than 0.175 mm.

Abstract: The pneumatic tire 1 includes the belt layer 14 having the pair of cross belts 142, 143, and a circumferential reinforcing layer 145 disposed between the cross belts 142, 143 or disposed inward in the tire radial direction of the cross belts 142, 143. Moreover, the circumferential reinforcing layer 145 is configured by one wire 1451 that is wound spirally at a slant within a range of ±5 deg with respect to the tire circumferential direction. Moreover, the crossing angle ? in the tire circumferential direction of the wire end portion at the first edge and the wire end portion at the second edge of the circumferential reinforcing layer 145 is within a range of 5 deg???355 deg.

Abstract: A pneumatic radial tire including a carcass; two belt reinforcing layers; and a belt formed by two belt layers. A width of a belt cord intersecting region defined by the two belt layers is set in the range of 65 to 90% of the tire width-W, the maximum width of the belt reinforcing layer is set in the range of 60 to 85% of the tire width. Also, a belt radius ratio, which is a ratio of difference between the radius of the belt at the tire equatorial plane and the radius of the belt at a belt side end position thereof measured from the tire axis in a state where the tire is inflated at the standard inner pressure, with respect to a belt half width, is not larger than 0.06.

Abstract: A pneumatic tire having a carcass and a belt reinforcing structure wherein the belt reinforcing structure is a composite belt structure having at least one radially inner spiral layer and at least one zigzag belt reinforcing structure located radially outward of said spiral layer. The zigzag belt width is preferably narrower than the spiral layer.

Abstract: Vehicle pneumatic tire with belt and carcass. An inner working ply of the belt has first parallel steel strengtheners embedded in rubber oriented at an angle “?” relative to a circumferential direction and satisfy: 10°???45°. An outer working ply of the belt has second parallel steel strengtheners embedded in rubber oriented at an angle “?” and satisfy: 10°???45°. The inner working ply has a greater axial length. The angles “?” and “?” have opposite inclination. Another belt ply is arranged between the inner and outer working plies and has third parallel strengtheners embedded in rubber oriented at an angle “?” and satisfy: 0°???5°. The first and second strengtheners have a breaking force F greater than 1800 N and at 10% of the breaking force F, an extension D satisfies 0.22%?D?0.4%.

Abstract: In a pneumatic tire, a belt layer includes an inner-side cross belt and outer-side cross belt having belt angles of not less than 46° and not more than 80° as absolute values with respect to a tire circumferential direction, the belt angles having mutually opposite signs, a circumferential reinforcing layer having a belt angle satisfying a range of ±5° with respect to the tire circumferential direction, and disposed between the inner-side cross belt and outer-side cross belt, and a supplemental belt having a belt angle of not less than 10° and not more than 45° as an absolute value with respect to the tire circumferential direction, and disposed on the outer side in a tire radial direction of the outer-side cross belt. Additionally, the supplemental belt and the outer-side cross belt have belt angles of mutually opposite signs.

Abstract: A tire comprising at least one carcass-type reinforcing structure formed of at least one layer of mutually parallel reinforcing elements making an angle, with the circumferential direction, of strictly less than 75° at least in the region of maximum axial width of the tire and of strictly less than 65° at least in the equatorial plane 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 pneumatic tire includes the belt layer that is formed by laminating the circumferential reinforcing layer and the pair of cross belts. Also, the tire external diameter R at the point of intersection O of the tire equatorial plane CL and the tread profile, the distance D1 in the tire radial direction between the tire ground contact edge T and the point of intersection O, and the distance D2 in the tire radial direction between the foot X of the line drawn from the end portion on the outer side in the tire width direction of the circumferential reinforcing layer 145 normal to the tread profile and the point of intersection O have a relationship such that 0.010?D1/R?0.015 and 0.27?D2/D1?0.3.

Abstract: A vehicle pneumatic tire for utility vehicles includes a carcass (5), a belt (9) and a profiled tread (10), wherein the belt (9) has three belt layers (13, 14, 15). The radial inner (13) and the radial outer (15) belt layers are working layers having reinforcements (23, 25) made of steel. The belt layer (14) is arranged between the two working layers (13, 15) and is a belt layer configured as a zero degree layer. The two working layers (13, 15) are wider than the belt layer (14) and are coupled to each other in the axial direction outside of the belt layer (14) at a length (p) of p>0 mm so that the distance (s) of the reinforcement (23) of the one working layer (13) to the reinforcement (25) of the other working layer (15) is given as s<1.5 mm.

Abstract: This pneumatic tire includes a belt layer including a pair of cross belts and a circumferential reinforcing layer disposed between the cross belts or disposed inward in the tire radial direction of the cross belts and that comprises a steel wire wound spirally at a slant within a ±5° range with respect to a tire circumferential direction, and a tread portion disposed outward in the tire radial direction of the belt layer and that contacts a road surface. The circumferential reinforcing layer has a width in the tire width direction that is not less than 60% and not more than 85% of a maximum ground contact width in the tire width direction of the ground contact patch of the tread portion.

Abstract: A tire comprising at least two working layers and at least one layer of circumferential reinforcing elements. The layer of circumferential reinforcing elements comprises at least a central part and two axially exterior parts, the elastic modulus of the rubber compound with which the circumferential reinforcing elements of the central part are coated being less than the modulus of the rubber compound with which the circumferential reinforcing elements of the axially exterior parts are coated.

Abstract: In a pneumatic tire, a belt layer includes an inner-side cross belt and an outer-side cross belt each having an absolute value of a belt angle with respect to the tire circumferential direction of not less than 46 degrees and not more than 80 degrees and having the belt angles with signs that are opposite to each other. The circumferential reinforcing layer has a belt angle with respect to the tire circumferential direction within the range ±5 degrees and disposed between the inner-side cross belt and outer-side cross belt. The supplemental belt has an absolute value of a belt angle with respect to the tire circumferential direction of not less than 10 degrees and not more than 45 degrees, and is disposed on the inner side in the tire radial direction of the inner-side cross belt. The supplemental belt and the inner-side cross belt have belt angles with opposite signs.

Abstract: A pneumatic tire includes an inner-side cross belt and an outer-side cross belt forming belt angles of mutually different signs with the tire circumferential direction with absolute values from 46° to 80°, inclusive; a circumferential reinforcing layer arranged between the inner-side cross belt and the outer-side cross belt and forming a belt angle of ±5° with the tire circumferential direction; and a supplemental belt arranged outside the outer-side cross belt in the radial direction of the tire and forming a belt angle with the tire circumferential direction with an absolute value between 10° and 45° inclusive.

Abstract: A pneumatic tire with improved noise performance while preserving the steering stability and rolling resistance includes, on radially outer side of the crown portion of a carcass, an inclined belt consisting of inclined belt layer(s) having cords inclined at an angle of 35° to 90° relative to the tire circumferential direction, a circumferential belt consisting of circumferential belt layer(s) having cords extending along the circumferential direction, and a tread on radially outer side of the circumferential belt. The circumferential belt includes a high rigidity region across the tire equator wherein the circumferential rigidity per unit width is higher at any location thereof than at any location in the remaining regions. The circumferential rigidity per unit width in the remaining regions is constant in the tire width direction or increases toward the high rigidity region.

Abstract: The present invention aims at providing a pneumatic tire for a motorcycle, capable of improving steering stability and wear resistance in a turning situation with maintaining good turning performance achieved by a relatively wide auxiliary belt layer. Specifically, the present invention provides a pneumatic tire for a motorcycle, characterized in that: the auxiliary belt layer is sectioned into a middle area Am overlapping a region where the belt layer is provided and respective side areas As each extending beyond the region where the belt layer is provided; the cords in the middle area Am extend at an inclination angle ?m in the range of 70° to 90° with respect to the tire circumferential direction; and the cords in each side area As extend, in at least a portion of the side area, at an inclination angle ?s different from the inclination angle ?m with respect to the tire circumferential direction.

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: Systems and methods for detecting anomalies in web structures used in the formation of tires are disclosed. A thermal imaging device, such as an infrared camera, can be used to scan a portion of web structure as the web structure leaves a calender. The thermal images can be analyzed for temperature differentials in the web structure. The presence of a temperature differential can signify the presence of an anomaly in the web structure, such as a missing or out of place cable anomaly, an improper edge trim anomaly, or a missing rubber material anomaly.

Abstract: A passenger vehicle tire, the crown reinforcement of which has three distinct elements, the three distinct elements comprising: a radial carcass reinforcement formed of reinforcing elements connecting the two beads of the tire, a crown belt comprising reinforcing elements parallel to the circumferential direction of the tire, and a crown triangulation layer comprising reinforcing elements making an angle of between 10 degrees and 80 degrees with the circumferential direction of the tire, the reinforcing elements of the triangulation layer having a flattened cross section.

Abstract: A tire constructed with a plurality of reinforcement belts is provided. At least one of the reinforcement belts extends along the axial width of the tire summit and is constructed according to an equilibrium curve that is flat throughout the summit. The reinforcement belts include cable reinforcements that are substantially parallel to the equatorial plane. Substantial reductions in the tension experienced by the cables can be achieved to provide, as a result, improvements in e.g., tread wear.

Abstract: A tire comprising a reinforcing structure of the carcass type and comprising under the tread strip a crown reinforcing structure comprised of at least one layer of reinforcing elements. At least the surface of the tread strip comprises a first polymer compound extending at least into the region of the equatorial plane and at least one second polymer compound having physicochemical properties that differ from those of the first polymer compound, the crown reinforcing structure comprising 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 being at a minimum in the region of the layer of circumferential reinforcing elements that radially face the ends of the first compound.

Abstract: A two-wheeled motor vehicle pneumatic tire (10) includes: a carcass layer (14) straddling a pair of bead portions (12); an inclined belt layer (18) that is disposed at a tire radial direction outer side of a crown portion (14C) of the carcass layer (14), and that includes a plurality of cords (18A) that are inclined with respect to the tire circumferential direction; and a spiral belt layer (20) that is disposed at the tire radial direction outer side of the inclined belt layer (18), and that is formed by winding a rubber-covered cord (20A) in a spiral shape in the tire circumferential direction.

Abstract: The pneumatic tire 1 includes a belt layer 14 that is formed by laminating a plurality of belt plies 141 to 145 including the circumferential reinforcing layer 145. Also, the belt layer 14 includes at least two belt plies on the outer side in the tire radial direction of the circumferential reinforcing layer 145. Also, the intercord distances T1 to Tk have a relationship such that T1<T2? . . . ?Tk and T1<Tk.

Abstract: A tire comprising at least two working layers and at least one layer of reinforcing elements. The layer of circumferential reinforcing elements comprises at least a central part and two axially exterior parts, the extent to which the circumferential reinforcing elements of the central part are penetrated by the rubber compound with which they are coated being less than the extent to which the circumferential reinforcing elements of the axially exterior parts are penetrated by the rubber compound with which they are coated.

Abstract: A run flat tire with reinforced sides, wherein inner and outer rubber thickness ratios centered on a carcass layer in a side wall portion are stipulated and a side filler extending in the tire radial direction is embedded on the outer wall surface side of the side wall portion. In this run flat tire, the modulus of the side filler/modulus of a side reinforcing layer, the modulus of a rim cushion/a modulus of the side filler, the cross-sectional area of a bead filler/cross-sectional area of the side filler, the cross-sectional area of the side filler/cross-sectional area of the side reinforcing layer, the rubber hardness of the side reinforcing layer, and the material of belt cover layers are each stipulated.

Abstract: A belt width of an intersecting belt 15a having the maximum belt width is set to 80% or more of the maximum width of a carcass line; a difference in belt widths between the intersecting belt 15a and an intersecting belt 15b is set in the range of 10 mm to 50 mm on one side of the belt in the width direction; the intersecting belt 15a is not narrower than the circumferential belt 14, and the circumferential belt 14 is not narrower than the intersecting belt 15b; and a pneumatic tire according to the present invention has an interposed rubber 16 having a thickness increasing toward the widthwise outer side of the tire to be 3 mm or more, and a side-lower rubber 17 having an elastic modulus less than the elastic modulus of a coating rubber coating the circumferential belt 14.

Abstract: A pneumatic tire for motorcycle is provided which can improve the traction performance especially during sharp cornering by largely leaning a vehicle (motorbike) followed by acceleration, and the stability during leaning of a vehicle in addition to enhancing steering stability at high speed. A pneumatic tire for motorcycle having a tread portion 11 formed in a circular shape, the tread portion 11 having a crown portion which has a spiral belt layer 3 in its inside in the radial direction of the tire, the spiral belt layer having an angle of 0 to 5° with respect to the circumferential direction of the tire and an arrangement width 0.5 to 0.

Abstract: A pneumatic tire to be mounted on a drive wheel, of which a rotating direction is specified including a carcass, a belt layer having at least two belt plies which are embedded with belt cords. Also including a pair of folded reinforcing layers folded to wrap around both ends of the belt layer in a width direction of the tire, a belt reinforcing layer embedded with reinforcing elements extending substantially parallel to the tire equator. The reinforcing cords are embedded in either the inner portion or the outer portion of the pair of the folded reinforcing layers which is spaced away from the belt reinforcing layer farther than the other portion and are inclined forward or backward in the rotating direction of the tire.

Abstract: A tire for a motorized two-wheeled vehicle, comprising a carcass-type reinforcing structure formed of at least two layers of reinforcing elements, and comprising underneath the tread a crown reinforcement structure comprising 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 reinforcing elements of said two or more layers forming the carcass-type reinforcing structure forming angles with the circumferential direction of between 70° and 85° and the distance between the reinforcing elements of each of said two or more layers forming the carcass-type reinforcing structure being not more than 0.5 mm across at least 60% of the axial width of at least one region composed of the second polymeric compound.

Abstract: A tire comprising a crown reinforcement which is itself capped radially with a tread, the crown reinforcement containing at least one layer of circumferential reinforcing elements distributed axially at a variable pitch. The layer of circumferential reinforcing elements comprising five parts, these being a central part, two intermediate parts and two axially exterior parts, the pitch in the central part being in the range between 1 and 1.5 times the pitch of the axially exterior parts and the pitch in an intermediate part being in the range between 1.6 and 2 times the pitch of the axially exterior parts.

Abstract: A pneumatic tire having a belt structure includes: a first belt layer; a second belt layer in a radially inner position with respect to the first belt layer, a third belt layer in a radially inner position with respect to the first and second belt layers, each belt layer including a plurality of elongated reinforcing elements disposed at a first, second and third belt angle respectively. The first and second belt angles have an absolute value of 15 to 40 degrees; the second angle is of opposite sign with respect to the first belt angle; and the third belt angle has an absolute value of 40 to 90 degrees and is of opposite sign with respect to the second belt angle. The belt structure also includes a zero degree belt layer placed in a radially outer position with repeat to the first belt layer including elongated reinforcing elements arranged such as to form a belt angle which is substantially zero.

Abstract: A tire comprising a hooping reinforcement, wherein the axial distance between neighboring portions of the hooping reinforcement is greater than or equal to 0.7 mm and smaller than or equal to 2 mm, with the exception of one first axial region L1 and two second axial regions L2. The axial distance of each of the axial ends of the first axial region L1 from the median plane is greater than or equal to 0.05·S and smaller than or equal to 0.15·S, S being the maximum axial width of the tire. The two regions L2 are provided on both sides of the median plane, each second axial region being centered at an axial distance D2 from the median plane, D2 being greater than or equal to 0.25·S and smaller than or equal to 0.4·S. Each second axial region L2 has an axial width W2 that is greater than or equal to 0.1·S. The sum of the axial widths of the first and second axial regions is smaller than or equal to 0.5·S.

Abstract: A tire includes two beads configured to come into contact with a mounting rim and two sidewalls extending the beads radially to the outside, the two sidewalls being joined together in a crown. A crown reinforcement extends axially between two axial ends and is surmounted by a tread. The crown includes, radially on the inside of the tread and radially on the outside of a carcass reinforcement, at least one first layer of rubber mix having a modulus of elasticity which is greater than or equal to 50 MPa, this first layer extending from the median plane of the tire axially to the outside, on both sides of the median plane, only as far as an axial distance from the median plane which is less than the axial distance of the axial end of the crown reinforcement from the median plane.

Abstract: A tire with a radial carcass reinforcement comprising a crown reinforcement formed from at least two working crown layers of inextensible reinforcing elements and from at least one layer of circumferential reinforcing elements positioned radially between two working crown layers, the working crown layers adjacent to the layer of circumferential reinforcing elements being on each side of the equatorial plane and in the axial continuation of the layer of circumferential reinforcing elements coupled over an axial width, in order thereafter to be decoupled. A layer of polymer blend having a thickness greater than 1.5 mm over an axial width greater than 0.1×d is positioned axially between the axially exterior end of the layer of circumferential reinforcing elements and the axially interior end of the coupling zone of the working crown layers.

Abstract: A pneumatic tire comprises a tread-reinforcing band made of at least one spirally wound cord, wherein 2the band cord consists of materially identical high-strength high-modulus organic filaments, and the band cord is formed by first twisting each of filament bunches, subjecting the first twisted bunches to a dip-and-stretch treatment, and then twisting the treated bunches together, whereby the load-elongation curve of the band cord comprises a low-modulus zone and a high-modulus zone whose boundary point is in an elongation range of from 1 to 7%, and the ratio EH/EL of a nominal elastic modulus EH of the high-modulus zone and a nominal elastic modulus EL of the low-modulus zone is in a range of from 2.0 to 10.0. Therefore, high-modulus aramid cords, PEN cords and the like can be used to reduce the tire weight.

Abstract: A pneumatic tire having a carcass and a belt reinforcing structure wherein the belt reinforcing structure is a composite belt structure having at least one radially inner spiral layer and at least one zigzag belt reinforcing structure located radially outward of said spiral layer. The zigzag belt width is preferably wider than the spiral layer.

Abstract: A pneumatic low aspect ratio truck has a crown reinforcing structure 7. The crown reinforcing structure 7 has a first steel belt ply 9 between the at least one carcass ply 3 and the tread 5, a second steel belt ply 11 between the first belt ply 9 and the tread 5, a third steel belt ply 13 between the second steel belt ply 11 and the tread 5 and a fourth steel belt ply 15 between the third steel belt ply 13 and the tread 5. The crown reinforcing structure 7 additionally has at least one circumferential steel strip 17 between the second and the third belt plies 11, 13.

Abstract: A motorcycle tire having a transverse curvature ratio f/C?0.2 and a sidewall height ratio (H?f)/H?0.7, has a belt structure provided with a belt layer including at least one filiform reinforcing element arranged to form a plurality of windings parallel to one another at a substantially zero angle relative to the equatorial plane of the tire. The available elongation of the belt in an intermediate zone between the equatorial plane, and the shoulder is greater than the available elongation corresponding to the equatorial plane. The aforementioned intermediate zone extends at least in a range centered on a camber angle of ±35°.

Abstract: The invention relates to a tire having a radial carcass reinforcement comprising a crown reinforcement formed of at least two working crown layers of reinforcement elements, which are crossed from one layer to the other, forming with the circumferential direction angles of between 10° and 45°, which itself is topped radially by a tread, said tread being joined to two beads by means of two sidewalls and the crown reinforcement comprising between two working crown plies at least one additional ply of reinforcement elements. According to the invention, the axial ends of the reinforcement element working ply radially closest to the carcass reinforcement are turned up to cover the axial ends of a working crown ply radially external to the additional ply.

Abstract: The present invention is directed to a pneumatic tire 1, in particular a low aspect ratio super single truck tire 1. In accordance with the invention, the tire has a crown reinforcing structure with a first breaker 9 between a carcass ply 3 and a tread 5, as well as four further breakers 11, 13, 15, 17 comprising at least one pair of working breakers between the first breaker 9 and the tread 5, wherein the first breaker 9 is a split breaker comprising two circumferential strips 9 essentially adjacent to the shoulders of the tire, each strip having an axial width comprised between 50% and 70% of the half tread width.