Abstract: A pneumatic tire includes two cross belts having codes forming 5 to 30 degrees to a tire circumferential direction; a circumferential reinforcing layer having a width smaller than the cross belts, and having codes forming 0 to 5 degrees to the tire circumferential direction; and a carcass located inside, in a tire diameter direction, relative to a cross belt being inside among the cross belts. At 100% internal inflation pressure, a distance X1 between an equatorial plane and an outer edge of the circumferential reinforcing layer is 60% to 75% of a distance W between the equatorial plane and an outermost section of the carcass, and at 5% internal inflation pressure, a distance Y between the equatorial plane and a separation section of the carcass and a belt outwardly adjoining the carcass is 95% to 105% of a distance X2 between the equatorial plane and the outer edge.

Abstract: Performance and comfort is increased in a tyre for vehicle wheels by assembling a tyre which includes a belt structure including at least one radially external reinforcing layer including a plurality of cords disposed at a substantially zero angle relative to a circumferential extension direction of the tyre. Each of the cords includes cellulose fibres, such as rayon, and aliphatic polyamide fibres, such as nylon.

Abstract: Provided is a pneumatic radial tire including a main belt layer and at least one circumferential-direction reinforcement layer, which are provided in the tread portion. The main belt layer includes two belt layers in which steel cords are disposed in a manner that the steel cords of a first one of the two belt layers intersect the steel cords of a second one of the two belt layers. In the circumferential-direction reinforcement layer, steel cords are disposed in a substantial tire circumferential direction. The ratio Wo/Wm of the width Wo of the circumferential-direction reinforcement layer to the maximum width Wm of the main belt layer is 0.5 to 0.9. The ratio Ee/Ec of the reinforcement-cord elastic modulus Ee of the steel cords in the edge portions of the circumferential-direction reinforcement layer to the reinforcement-cord elastic modulus Ec of the steel cords in the center portion of the circumferential-direction reinforcement layer is not less than (0.85?0.5 Wo/Wm) and not more than 0.8.

Abstract: A reinforcing rubber layer having a falcated cross-section disposed on an inner side in a tire width direction of the carcass layer in a side wall portion. An angle ?, with respect to the total tire width SW and a tire cross-section height SH, satisfies a relationship (SH/SW×6+3)°???(SH/SW×6+8)°. Additionally, a height H1 of a bead filler is from 15 to 35% of the tire cross-section height SH and a height H2 of a maximum thickness position of the reinforcing rubber layer is from 35 to 55% of the tire cross-section height SH.

Abstract: Driving stability and durability is efficiently improved. Since a protecting layer 43 embedded with reinforcing cords 41 is disposed between a tread 35 and a belt reinforcing layer 31, both of the protecting layer 43 and the belt reinforcing layer 31 decentrally bear a large bending force generated when a pneumatic tire 11 runs on a sharp projection or a difference in level. As a result, even if reinforcing elements 33 in the belt reinforcing layer 31 are extended by large tension due to fill internal pressure, increase of strain generated in the reinforcing elements 33 can be effectively suppressed.

Abstract: The present invention provides a tire with a belt having relatively high durability by improving fatigue resistance of cords at end portions of a circumferential belt layer, in particular, and especially proposes a radial tire for heavy load, having a relatively small aspect ratio.

Abstract: A proper balance between ride comfort, steering stability, and road noise is achieved. A pneumatic tire (1) has a band layer (9) comprising a band ply (9A) where band cords are arranged at an angle of not more than 5 deg. with respect to the circumferential direction of the tire on the radially outer side of a belt layer (7). The band ply (9A) comprises a first ply piece (9a) covering only one side of end portions of the belt layer (7) and a second ply piece (9b) disposed adjacently to the first ply piece (9a), covering continuously the central portion of the belt layer (7) and another side of the end portions, and having a width larger than that of the above-mentioned first ply piece (9a). And, the band cords of said first ply piece (9a) and band cords of said second ply piece (9b) are different in modulus.

Abstract: A process for recovering rubber from a tire, the tire including a rubber tread block, steel belting, and an inner liner that serves to hold the air pressure in the tire. The bead and sidewall may be removed from the tire leaving a loop of tread material. Next, the loop is placed on a rubber-separating machine to hold the loop in place. One or more cutting blades are lowered into position at the tread portion of the tire. Once the blades are in place, the tread loop is placed in motion around the rollers. As the blades contact the steel belts, the cutting blades separate the tread rubber from the reinforced rubber at the interface between the tread rubber and the steel belts.

Abstract: A tire comprising at least two working layers and at least one layer of circumferential reinforcing elements positioned radially between two working crown layers. At least one layer of circumferential reinforcing elements has an axial width greater than 0.5×S, and is made up of two parts separated axially from one another, and, axially between the two parts of the layer of circumferential reinforcing elements, two working crown layers are coupled over an axial width greater than 0.035×S.

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 and the axially widest working crown layer being radially internal to the other working crown layers.

Abstract: This invention provides a radial tire for aircraft comprising a belt composed of a plurality of belt layers, wherein a total strength of the belt Tbelt [N] in a circumferential direction over its full width satisfies Tbelt/WD?1.5×106 in which D [m] is an outer diameter of the tire and W [m] is a width of the tire, the belt is composed of at least two belt layers each containing organic fiber cords with an elongation in an extension direction under a load of 3.2 cN/dtex of 2.2-9.3%, a protection belt layer having a circumferential stiffness lower than that of the belt is disposed at an outside of the belt in a radial direction, a ratio of the circumferential stiffness of the protection belt layer to the circumferential stiffness of the belt is less than 0.5, and the protection belt layer is composed of organic fiber cords having a tensile strength at break of not less than 6.3 cN/dtex and a heat shrinkage factor of 0.5-5.

Abstract: A pneumatic radial aircraft tire is described having a B/A ranging between 60-70%, wherein B is the width of the tire between the wheel flange, and A is the inflated tire width under rated pressure. The tire may further optionally include a tire bead portion having a Ra/Fr1 relationship which ranges from about 1 to about 2.1, wherein: Ra is the tire heel radius at uninflated and in an new and unused condition, and Fr1 is the wheel flange elliptical radius at the heel section of the tire. The tire may further optionally include a SW/TS ratio which ranges from about 0.1 to about 0.5, wherein SW is the chafer gauge at area A, TS is the total sidewall rubber gauge at area A, wherein A is defined as the region in the sidewall that has a lower radial endpoint defined by the point of contact between the flange and the tire at inflated, unloaded condition, and an upper radial endpoint Ah defined by the tire wheel flange point of contact when the tire is at inflated, and at 100% rated load.

Abstract: A tire for a heavy vehicle with a radial carcass reinforcement of a width in excess of 25 inches comprising at least a working crown reinforcement made up of at least one layer of reinforcing elements oriented substantially circumferentially, radially surmounted by at least two so-called working layers axially wider than the layer of substantially circumferentially oriented reinforcing elements. Each of the working layers is made up of at least two axially separated parts, the distance between the axially inner end of each of the axially outer parts of at least the radially innermost working layer and the end of the radially outermost layer of substantially circumferentially oriented reinforcing elements being less than 45 mm and the gap, in the axial direction, between two parts of each of the working crown layers being greater than 5 mm.

Abstract: Disclosed is a pneumatic radial tire having improved flat spot resistance without sacrificing its high-speed durability, when a belt auxiliary reinforcement layer thereof is constituted of a hybrid fiber cord including a general-purpose nylon as a low-elastic fiber yarn. In the pneumatic radial tire, the belt auxiliary reinforcement layer is formed by winding an organic fiber cord around the outer periphery of belt layers in the tire circumferential direction. The organic fiber cord constituting the belt auxiliary reinforcement layer is obtained by twisting a highly-elastic fiber yarn with an elastic modulus of 10000 MPa or more and a low-elastic fiber yarn made of nylon 46.

Abstract: The present invention provides a belt formed of a spirally wound strip member constituted of a few juxtaposed cords and rubber coating thereon, with a structure which can absorb influence of difference in winding diameter at the unit width portion of the strip member without deteriorating productivity of the tire.

Abstract: A pneumatic vehicle tyre for commercial vehicles, comprising a carcass (5), a breaker belt (9) built up radially outside the carcass (5) and a profiled tread rubber (10) built up on the breaker belt (9) radially outside the breaker belt (9), wherein the breaker belt (9) is formed by at least three belt plies (13, 14, 15) arranged lying one on top of the other from the inside outwards in the radial sense wherein the radially inner belt ply (13) and the radially outer belt ply (15) are working plies, with steel reinforcing elements (23, 25) embedded in rubber and arranged at an angle in relation to the circumferential direction of 10°-45°, and wherein the belt ply (14) arranged between these two working plies (13, 15) is a belt ply (14) formed as a zero degree ply with parallel reinforcing elements (24), which are embedded in rubber and in their alignment include an angle ? in relation to the circumferential direction U where 0°???5°, wherein the reinforcing elements (23, 25) of the two working plies (13, 15) e

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, at least one protective layer being radially to the outside of the working crown layers, said crown reinforcement being topped radially by a tread, said tread being joined to two beads by means of two sidewalls. The tire additionally comprises in each shoulder at least one layer of reinforcement elements which are parallel to each other in the additional layer and are oriented circumferentially, the axially inner end of said additional layer being radially adjacent and external to the radially outermost working layer and said axially inner end of the additional layer being radially adjacent and internal to at least part of the protective layer.

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 and the axially widest working crown layer being radially internal to the other working crown layers.

Abstract: In a pneumatic tire for heavy load including a circumferentially-formed groove running in a tire circumferential direction on a surface of a tread part, when a pneumatic pressure equivalent to a normal inner pressure is applied with reference to a case where a pneumatic pressure equivalent to an inner pressure of kPa is applied, a radius growth in a tire radial direction at a crown center of the tread part and in the circumferentially-formed groove located at the most lateral side in a tire width direction is made to be less than 0.3%.

Abstract: Provided is a pneumatic radial tire: that includes a circumferential-direction reinforcement layer having a width increased with fatigue break of the circumferential-direction reinforcement layer being suppressed at edge portions thereof; and that suppresses separation in each of cross belt layers at edge portions thereof. A pneumatic radial tire according to the present invention is a pneumatic tire including: at least two cross belt layers disposed on an outer circumferential side of a carcass layer in a tread portion; and at least one circumferential-direction reinforcement layer disposed between these cross belt layers, a width of the circumferential-direction reinforcement layer being smaller than that of each cross belt layer.

Abstract: A pneumatic tire for use on aircraft has a tread, a crown reinforcement, and a radial carcass reinforcement having at least one axially inner ply of textile cords wound around a pair of bead cores, at least one axially inner ply being wound around the bead core in each bead from inside to the outside forming outside turn-ups and at least one axially outer ply of textile cords extending from bead to bead along the turn-ups of the at least one axially inner ply. The at least one axially inner ply or at least one axially outer ply has merged cords having a percent elongation at break of 12% to less than 20% and a break strength greater than 1050 N with a linear density of greater than 9,000 dtex. Merged cord reinforcement is preferably used in the ply layers or strips of the crown reinforcement as well.

Abstract: A two-piece tire assembly 10 with a removable tread belt 12 for installing about the circumference of a tire carcass 14 is provided. The two-piece tire assembly 10 includes a tread belt 12 has a belt structure 90 having two or more belt layers 100, 110, 120, 130 each layer having one or more belts. The tread belt 12 has a radially inner surface 70 having one or more protruding circumferential ribs 72 or grooves 74 that fit into complementary grooves 18 or ribs 19 on an outer crown surface of the tire carcass 14. The tread belt 12 has a maximum axial belt width W at a radially inner surface. The carcass 14 has a maximum section width SW and ply line 20 having a maximum width P wherein W?0.95P, BW?5 0.85P and P<SW.

Abstract: A tire for two-wheeled motorcycles of the present invention includes a first carcass layer folded back along circumferential surfaces of bead cores, a second carcass layer folded back along circumferential surfaces of turnbacks of the first carcass layer 5, a belt layer wound spirally along a tire circumferential direction and an intermediate carcass layer provided between the first and second carcass layers 7 and in an inner circumferential side of the belt layer and extending close to a tire maximum width.

Abstract: The present invention provides a pneumatic tire that inhibits any fatigue rupture at an edge portion of a circumferential-direction reinforcing belt layer and also inhibits any separation at an edge portion of crossed belt layers. In the pneumatic tire, at least two crossed belt layers are disposed on the outer circumferential side of a carcass layer in a tread portion. At least one circumferential-direction reinforcing belt layer with a width smaller than those of the crossed belt layers is disposed between the crossed belt layers. Moreover, a stress relaxation layer of a rubber composition having a fixed thickness is disposed between the crossed belt layers while lying adjacent to an edge portion of and outside, in the width directions of, the circumferential-direction reinforcing belt layer.

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 said reinforcing elements of the triangulation layer having a flattened cross section.

Abstract: A pneumatic tire for mounting on an aircraft wheel has a radial carcass and flipper reinforcement. The tire has a pair of bead cores, at least two or more axially inner plies greater than or equal to, extending between the bead cores, a crown reinforcement radially outward of the plies having a maximum belt width BW, and at least one flipper reinforcement wrapped around each bead core. Each bead core has a radially extending cross sectional length B. Each flipper reinforcement extends along an inner surface of the bead core to the axially inner end located in an area that is between 0.01 BW to 0.25 BW as measured from the belt edge toward a centerline of the tire preferably in the range of 0.05 BW to 0.125 BW and wherein one flipper reinforcement has an axially outer end lower than the top of the bead core.

Abstract: A pneumatic tire includes a tread portion on each side of the equatorial plane. At least two circumferential main grooves and three land portions are formed in the tread portion. In a cross section in a meridian direction of the pneumatic tire, profile lines of the land portions form arcs, and an intersection of extension lines of profile lines of adjacent land portions forms an inflection point in a circumferential main groove. Tensile strength of a reinforcing layer in the land portions is larger than that in the circumferential main groove having the inflection points.

Abstract: A method of producing a pneumatic tire in which, a cord material of a secondary belt layer has a larger thermal shrinkage rate than that of the primary belt layer to effectively suppress the radial expansion of a tire and advantageously improve cutting-resistance of a tread as in the conventional tire. In the method, a ribbon-shaped strip 22 is folded in a region R, in a developed plan view of a material 21 forming the secondary belt layer, between a side end e of the forming material 21 and a position distanced from the side end toward the tire equatorial side by ¼ of the overall width of the forming material, such that the thus bent ribbon-shaped strip 22 extends in a curved manner to build a green tire.

Abstract: A pneumatic tire comprises a tread-reinforcing band made of at least one spirally wound cord, wherein the 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 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. The tire comprises additionally at least in each shoulder a layer of reinforcement elements which are oriented circumferentially and have an undulation, the axially inner end of said additional layer being radially adjacent to the edge of a working crown layer, the axially outer end of said additional layer being located at a distance from the equatorial plane of the tire which is at least equal to the distance between said plane and the end of the working layer to which it is adjacent and the distance between said layer and the end of the axially widest working crown layer being greater than 1.5 mm.

Abstract: A two-piece tire assembly with a removable tread belt for installing about the circumference of a tire carcass is provided. The inner surface of the tread belt follows a non-linear, preferably arcuate profile with a radius of curvature R across the tread belt wherein the distance DL as measured from the axis of rotation to the inner surface of the tread belt extends a distance DO at the equatorial plane and curves radially inwardly to a distance DE at each belt edge such that DE?0.9*DO.

Abstract: A pneumatic tire containing a tread, a carcass having at least one belt ply disposed below the tread, and a cap ply located between the carcass and the tread. The cap ply comprises at least one layer of an open construction leno weave tape having a pair of warp yarns in the longitudinal direction and a weft yarn in the weft direction. The pair of warp yarns comprises a first warp yarn and a second warp yarn, where the second warp yarn has a force of elongation of between about 1 and 40% the force of elongation of the first warp yarn, where the second warp yarn is in tension, and where the second warp yarn has an elongation at break of greater than 2%. The leno weave tape is disposed in a flat pattern around the circumference of the carcass in the area of the belt ply. A method of making a pneumatic tire is also disclosed.

Abstract: A pneumatic tire includes a pair of parallel annular bead portions, at least one carcass ply reinforcing structure wrapped around the beads, a tread disposed radially outward of the carcass ply, a belt reinforcing structure disposed radially outward of the carcass ply reinforcing structure and radially inward of the tread in a crown area of the tire, and a layer of cords having an alternating straight/curled construction for improving performance characteristics of the pneumatic tire.

Abstract: Disclosed are a method for manufacturing a heavy-duty pneumatic tire by winding a reinforcing belt disposed in a belt layer of a tread with an untopped spiral steel cord, and a tire manufactured by the same.

Abstract: First, a first belt ply is wound around an outer peripheral surface of a belt drum having a curvature so as to be formed as a tubular shape, and a rubber layer protruding to an outer side than an end portion in a width direction of a belt reinforcing layer is arranged in an outer periphery of an end portion in a width direction of the first belt ply. Further, a second belt ply which is narrower than the first belt ply is wound around an outer periphery of the second belt ply so as to be formed as a tubular shape, and a belt layer is formed in such a manner that the first belt ply and the second belt ply are laminated. The belt reinforcing layer is formed by spirally winding a rubber-coated reinforcing cord around an outer peripheral side of the formed belt layer, and an end portion in a width direction of the belt reinforcing layer is arranged in an outer side than the first belt ply.

Abstract: A tyre includes a carcass structure including at least one carcass ply and a belt structure including at least one belt layer. The carcass ply includes a plurality of metallic cords. Each of the metallic cords includes a plurality of strands. Each strand of the plurality of strands includes a plurality of filaments having a diameter between 0.06 and 0.15 mm. The strands are disposed so as to form a cord structure having a cross section in which a substantially circular layer of outer strands is disposed around a central strand.

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 and the axially widest working crown layer being radially internal to the other working crown layers. The tire comprises additionally in each shoulder at least one layer of reinforcement elements which are parallel to each other in the layer and are oriented circumferentially, the axially inner end of said additional layer being radially adjacent to the edge of a working crown layer, at least part of said additional layer being radially and/or axially adjacent to the edge of the axially widest working crown layer and the axially outer end of said additional layer being radially internal to the axially widest working crown layer.

Abstract: A pneumatic tire for a motorcycle in which partial abrasion is suppressed by making the slip component of a tread lubber in the circumferential direction of tire as uniform as possible in the ground contacting plane. A cushion rubber layer 38 having elastic modulus lower than that of the tread rubber 30 is arranged on a spiral belt layer 22, and an inclination belt layer 24 including a cord inclining at an angle of 45 to 90 degrees to the circumferential direction of the tire is arranged on the cushion rubber layer 38. Consequently, shear deformation of the cushion rubber layer 38 during traveling can be transmitted to the tread rubber 30 after being smoothed by the inclination belt layer 24.

Abstract: A pneumatic tire containing a tread, a carcass having at least one belt ply disposed below the tread, and a cap ply located between the carcass and the tread. The cap ply comprises at least one layer of an open construction leno weave tape having a pair of warp yarns in the longitudinal direction and a weft yarn in the weft direction. The pair of warp yarns comprises a first warp yarn and a second warp yarn, where the second warp yarn has a force of elongation of between about 1 and 40% the force of elongation of the first warp yarn, where the second warp yarn is in tension, and where the second warp yarn has an elongation at break of greater than 2%. The leno weave tape is disposed in a flat pattern around the circumference of the carcass in the area of the belt ply. A method of making a pneumatic tire is also disclosed.

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: A heavy-duty pneumatic tire capable of sufficiently suppressing the amount of strain occurring in side edges of a belt layer is sufficiently suppressed, despite the required increase in width of the narrow belt layers on the inner layer side, so as to effectively prevent separation of the belt layer and, hence, separation of the belt. The tire includes two narrow belt layers (1B, 2B) on the inner layer side, and two wide belt layers (3B, 4B) on the outer layer side, which are larger in width than the narrow belt layers. The narrow belt layers and the wide belt layers are sequentially arranged on the outer circumferential side of a crown region of a radial carcass (5). The innermost narrow belt layer (1B) has side edges that are convex radially outwards.

Abstract: Pneumatic tires for aircraft service having a belt package with shoulder reinforcement. The tire includes a belt reinforcing structure or belt package having multiple cut belts, multiple spiral wound belt layers positioned radially between the cut belts and the tread, and multiple spiral wound shoulder layers proximate the shoulder. The spiral wound belt layers and the spiral wound shoulder layers are formed by a continuous cord-reinforced strip having a strip width. The spiral wound belt layers are characterized by a first winding pitch of approximately one strip width per revolution and the spiral wound shoulder layers are characterized by a second winding pitch of less than one strip width per revolution. Alternatively, the spiral wound shoulder layers may be formed with a tiered arrangement by shifting the starting location for successive spiral wound belt layers laterally so that the side edges are not coincident.

Abstract: A puncture resistant pneumatic tire has a tread portion and a pair of lateral tread edges. A belt package is located radially inward of the tread portion and a carcass structure has at least one body ply which extends between and is turned up around a pair of bead cores. A protective band extends circumferentially about the tire radially beneath the tread portion and includes a plurality of circumferentially spaced metal rods, each of which extends in a lateral direction between the tread edges. The protective band may be located radially inward or outward of a spiral ply layer and the rods may be arranged in a staggered laterally offset layered relationship. The rods have a circular cross-section with a diameter of between 1/16 inch and ¼ inch and a length of between 7 inches and 8 inches and will deflect and dislodge the pointed end of road debris before it completely punctures the tire.

Abstract: Provided is a pneumatic radial tire including a carcass layer composed of a carcass ply 12 and a spiral belt layer 26 composed of steel cords wound spirally substantially in parallel with each other to a tire equator surface. When the ratio of spacing R1 between adjacent steel cords of the spiral belt layer 26 is shown by R1=(50?E×ds)/50, the ratio of spacing R1 is 0.45 or less as well as the total sectional area S of the steel cords applied per 50 mm width of the spiral belt layer is 7.5 mm2 or less (E shows the number of steel cords applied per 50 mm width of the spiral belt layer, and ds shows the diameter (mm) of each steel cord). The number of steel cords E applied per 50 mm of width ranges from 66 to 200.

Abstract: A pneumatic tire containing a tread, a carcass having at least one belt ply disposed below the tread, and a cap ply located between the carcass and the tread. The cap ply comprises at least one layer of an open construction leno weave tape having a pair of warp yarns in the longitudinal direction and a weft yarn in the weft direction. The pair of warp yarns comprises a first warp yarn and a second warp yarn, where the second warp yarn has a force of elongation of between about 1 and 40% the force of elongation of the first warp yarn, where the second warp yarn is in tension, and where the second warp yarn has an elongation at break of greater than 2%. The leno weave tape is disposed in a flat pattern around the circumference of the carcass in the area of the belt ply. A method of making a pneumatic tire is also disclosed.

Abstract: A tire for a two-wheeled motorized vehicle includes a carcass-type reinforcement structure, having reinforcement elements anchored on each side to a bead. Each bead extends radially by a sidewall, which meets up radially with a tread. Under the tread is a crown reinforcement structure including at least one working layer of working reinforcement elements, and a layer of circumferentially oriented reinforcement elements disposed radially to the outside of the carcass-type reinforcement structure. Over the profile of the tire in a radial plane, radially to the outside of the two points of tangency of the curvilinear abscissa of the carcass-type reinforcement structure with perpendiculars to the axis of rotation, at least one layer of working reinforcement elements is at least partially radially to the inside of the part of the carcass-type reinforcement structure radially to the outside of the two points of tangency.

Abstract: This invention provides a pneumatic tire having a highly improved steering stability, wherein a reinforcing layer formed by spirally winding a strip-shaped triaxial fabric or triaxial fabric-rubber composite having a width W satisfying a relation of the following formula (I): W?2/3×31/2×(2b/a+d)??(I) [wherein d=4×(D/(??))1/2×10?2, D is a thickness (total dtex) of cord constituting the triaxial fabric, ? is a density (g/cm3) of the cord constituting the triaxial fabric, and a is weaving density (cords/b mm) in one axis constituting the three axes] in a circumferential direction of the tire is disposed in one or more of a bead portion 1, a sidewall portion 2 and a belt portion 5.

Abstract: A pneumatic tire has a tread with shoulders, a belt structure, a carcass, and a radial ply structure. The shoulders have a continuous curving radially outer profile so that the shoulders transition smoothly from the tread profile to the tire sidewalls. The locus of the radii defining the shoulder is located on the inner side of the tire. The tire has a belt structure formed of an annular layer of parallel cords directly adjacent to the radial ply structure, the annular layer having a pair of opposing annular edges and a continuous radius curve profile. Located radially inward of the axial edges of the annular layer is an annular reinforcing strip layer. The strip has a width of not greater than 30 mm and extends axially outward by a distance of not more than 10 mm.

Abstract: A radial tire for airplane comprises a pair of bead cores, a radial carcass, and a belt disposed on an outer periphery of a crown portion of the radial carcass and comprised of plural belt layers each containing organic fiber cords, in which a total strength in a circumferential direction over a full width of the belt Tbelt(N) satisfies Tbelt/WD?1.5×106 when an outer diameter of the tire is D (m) and a width of the tire is W (m), and at least one layer of the belt layers is constituted with an organic fiber cord spirally winding at an angle of approximately 0° with respect an equatorial plane of the tire and satisfying the following equations (I) and (II): ???0.01E+1.2??(I) ??0.02??(II) (wherein ? is a heat shrinkage stress at 177° C. (cN/dtex) and E is an elastic modulus at 25° C. under a load of 49 N (cN/dtex)).

Abstract: The present invention provides a pneumatic tire for a motorcycle capable of satisfying all of high-speed durability, turning performance and slide controllability. The invention relates to a pneumatic tire 10 for a motorcycle having a bead core 12, a carcass 14, a tread rubber 18, a side rubber 26 and a spiral belt 30. The number of cords Nmc in the spiral belt 30 in the center area is set to 30 to 70/50 mm, and the number of cords Nms in the spiral belt 30 in the shoulder area is set to 10 to 45/50 mm (Nmc/Nms=1.5 to 3.0). The tread rubber 18 is set to tan ?/E?=0.06 to 0.14 MPa?1 in the center area CA and the tread rubber 18 is set to tan ?/E?=0.12 to 0.16 MPa?1 in the shoulder area SA (TEc/TEs=0.4 to 0.9).