Abstract: A green tire of a pneumatic tire, including a cylindrical annular structure, an unvulcanized rubber layer, which will become a tread portion, provided along a circumferential direction of the annular structure on an outer side of the annular structure, and a carcass portion including fibers covered with rubber, provided on at least both sides in the width direction of a cylindrical structure including the annular structure and the unvulcanized rubber layer, is disposed in a vulcanization mold. The vulcanization mold is split into the side plates and the sector at a position on the inner side in the width direction of the annular structure. Next, the bladder inside the green tire is pressurized after closing the side plates and prior to closing the sector. Then the sector is closed and vulcanization is started.

Abstract: A pneumatic tire 1 having a toroidal carcass 3 and a belt 7 consisting of belt layers 5, 6 arranged in the outer circumferential side of a crown portion 4 of the carcass 3. Between the adjacent belt layers 5, 6, the cords 8, 9 are crossed with each other with respect to an equatorial plane E of the tire to form cross belt layers. The widest belt layer 6 is a folded belt layer having a body portion 10 and a folded portion 12. A cord 9 constituting the folded belt layer 6 is an organic fiber cord. A narrow belt reinforcing layer 14 of rubberized cords 13 is arranged at least immediately below the width terminal end 11 of the body portion 10 of the folded belt layer 6 which terminal end 11 abuts on the folded portion 12.

Abstract: An aircraft tire having a folded belt construction and a belt edge strip over the folded belt construction has improved high speed properties. The belt edge strip substantially covers the top surface and/or the bottom surface of the folded belt in addition to the folded belt edges. The folded belt construction is reinforced with high modulus materials, and the belt edge strip is reinforced with low modulus materials. In a method of the invention, plies which make up the belt reinforcement package are applied to a belt building drum while the building drum is at different diameters to minimize stresses on the belt package. In a method of building a tire of the invention, a tire carcass on a tire building drum is expanded to the belt package.

Abstract: A plies sleeve for use in forming a core of plies and beads on a core build mandrel where the plies sleeve is woven as a tubular sleeve having a uniform circumference that will stretch laterally, increasing the sleeve circumference to fit over a top surface or crown of the core build mandrel and is of a length to where each sleeve side will fold down an opposite core build mandrel side, passing around a tire bead, back up the cored build mandrel side and over the top surface or crown edge. Which outward sleeve stretching is provided by a select weave where Rayon cords are spiral wound as vertical components of approximately seven point (7.5) pics per inch, and elastic cords are included as horizontal components of approximately eight (8) pics per inch that are formed as pre-cure elastic cords from a urethane material and are cotton wound, to allow for sleeve stretching and provide for a return of the plies sleeve to its un-stretched state.

Abstract: A tire comprising a crown extended by two respective sidewalls and two respective beads, a carcass structure anchored in each side of the tire in said beads, said crown comprising at least one reinforcing ply having parallel reinforcements oriented at an angle &agr; relative to the circumferential direction ranging between 10 and 45 degrees, a first crown reinforcement having cords substantially oriented in the circumferential direction and being high elastic modulus at high stress organic fiber cords, and a second crown reinforcement having cords substantially oriented in the circumferential direction and having a ratio &tgr; of the tensile strength at high strain and high temperature to the tensile strength at low strain and moderate temperatures inferior to 1.5.

Abstract: A pneumatic tire comprises the following belt (A) or belt (B). The belt (A) comprises a ply made of waved monofilament steel cords and a ply made of multi-filament steel cords, wherein the waved monofilament steel cord is (1) spirally waved so that the wave pitches PA are in a range of from 14 to 50 mm and the amplitude HA of each wave is in a range of from 0.002 to 0.02 times the pitch PA of the wave, or (2) two-dimensionally waved so that the wave pitches PB are in a range of from 5 to 50 mm, and the amplitude HB of each wave is in a range of from 0.002 to 0.05 times the pitch PB of the wave. The belt (B) comprises two plies made of waved monofilament steel cords, wherein the waved monofilament steel cord is waved so that the wave pitches P are in a range of from 0.008 to 0.08 times the circumference of the tire and the wave height of each wave is in a range of from 0.002 to 0.025 times the pitch P of the wave.

Abstract: A tire having a crown reinforcement formed of at least two working crown plies (32, 34) having axial widths L32, L34 greater than the width L33 of an additional reinforcement (33) of inextensible, substantially radial reinforcement elements, which reinforcement is arranged radially between said plies (32, 34) and is axially composed of three parts, a central part (33′) in the form of a ply formed of inextensible, substantially radial reinforcement elements and two lateral parts in the form of strips (33″), each formed of circumferential reinforcement elements, the modulus of elasticity upon traction per unit of width of a lateral strip being at most equal to the modulus of elasticity upon traction, measured under the same conditions, of the most extensible working ply.

Abstract: A pneumatic tire with a folded belt structure comprises a cut belt and an overlay encompassed by folded over edges of the folded belt. Low aspect ratio tires for high performance automobiles having this structure can be made using a variety of materials.

Abstract: A cord for a tyre includes a strand of metallic core threads and at least two shells of metallic threads arranged around the core strand; the threads of the core strand and of the shells are wound helicoidally and have a “Lang Lay” type winding.

Abstract: The invention can improve rubber permeability and a fatigue resistance in a metal cord in a layer structure. There is formed layer structure in which a sheath (3) constituted by 1 to 6 filaments (Fb) is formed around a core constituted by 1 filament (Fa). The filament (Fa) is constituted by a waved filament (5) waved in a two-dimensional wave shape in a state before being bundled, and is twisted with the sheath while applying the torsion so as to be formed in a three-dimensional wave shape within a cord.

Abstract: The invention is directed to fabric-based inserts and layers for use with tires in order to provide an improved level of puncture resistance to the tire. Disclosed embodiments of the invention include tire anti-puncture layers including puncture-resistant layers that comprise a single or multiple layers of fabric. Preferably, for low cost and low abrasion, the puncture-resistant layers comprise fibers having a tensile strength or tenacity of less than about 15 g/denier. In some preferred constructions, especially where the puncture-resistant layer comprises a single layer of fabric, the puncture-resistant layer comprises a high cover factor, tightly woven fabric, for example having a round packed cover factor of at least about 40% of full in the warp direction and at least about 65% of full in the fill direction.

Abstract: A steel cord for a tire which increases a corrosion resistance and durability and improves the energy efficiency during curing of the tire and a radial tire using the same. This steel cord has an m+n twist structure comprising a core containing m pieces of wires and a sheath containing n pieces of wires, in which a rubber compound or an elastomer compound is filled into a space between the core and the sheath. Otherwise, the steel cord has a 1×N twist structure containing N pieces of wires, in which a rubber compound or an elastomer compound is filled into a space at a cord center surrounded by the N pieces of wires.

Abstract: A pneumatic tire comprises a spiral belt formed by spirally winding a cord(s) along a circumferential direction of a torus tread, wherein the spiral belt is comprised of at least one layer constructed with a combination of two different cords each having an initial tension of not less than 50 cN/cord.

Abstract: A puncture sealing agent for sealing an inner surface of a tire comprises a deproteinized rubber latex that is formed by removing protein from a natural rubber latex. The puncture sealing agent includes nitrogen content at 0.1 wt. % or less of rubber solid content of the deproteinized rubber latex, and ammonia content at 0.5 wt. % or less of the rubber solid content.

Abstract: A pneumatic tire comprises a carcass extending between bead portions through a tread portion and sidewall portions, and a belt disposed radially outside of the carcass in the tread portion, wherein the belt comprises at least one monofilament cord ply made of parallel monofilament cords, each monofilament cord is a single metallic filament having a circular cross sectional shape, a diameter of from 0.35 to 0.70 mm, a tensile strength of from 2800 to 3700 Newton/sq.mm, and a bending rigidity of from 35 to 260 gf cm, and the cord count of the monofilament cords in the monofilament cord ply is in a range of from 30 to 50 /5 cm.

Abstract: A pneumatic race tire has an elastomeric casing with a tread in the crown portion thereof, a pair of bead areas and a body ply carcass extending continuously between the bead areas and through the sidewalls and crown portion. A continuous thin annular band formed of a high strength, lightweight material such as metal, fiberglass, a composite material or the like is located radially inwardly of the tread and between the tread and body ply carcass to enhance tire performance by reducing the thickness of the tread area.

Abstract: A pneumatic radial tire has at least two belt layers disposed at a tread portion thereof, wherein the two belt layers are constituted by inclining a strip formed by aligning a plurality of reinforcing cords to a tire circumferential direction and extending it zigzag in the tire circumferential direction so that the strip is turned back from the lower belt layer to the upper belt layer at both end portions of the two belt layers, and zone portions in which the reinforcing cords incline to the right in the tire circumferential direction and the zone portions in which the reinforcing cords incline to the left in the tire circumferential direction are alternately arranged.

Abstract: A method of making a reinforcing fabric having wide angles between the warp yarns and the weft yarns by helically folding on itself a strip of fabric which has been skewed such that the angle .alpha. between the warp yarns and the weft yarns is from 100.degree. to 140.degree..

Abstract: A radial ply tire (10) has a belt assembly (21) of at least one, and preferably two, belt plies (22, 23). At least one of the belt plies has a gum strip laying flat against a belt edge or folded over the edge of a belt ply such that there is at least one reinforced gum strip on each lateral side of the belt assembly. The reinforced gum strip comprises parallel reinforced cords encapsulated in gum treatment of 0.015 to 0.55 total gauge, wherein the reinforcing cords make an angle of 5.degree. to 90.degree. with respect to the equatorial plane (EP) of the tire.

Abstract: A pneumatic vehicle tire comprises a single ply or multi-ply radial carcass anchored to beads, a tread, and a breaker arrangement provided between the carcass and the tread. The breaker arrangement is preferably built up of at least two cut breaker plies with the threads or cords of the cut breaker plies, which serve as strength carriers and extend parallel to one another in the respective ply, crossing at a predetermined angle to the central mid-circumferential plane. The tire also comprises at least one cover ply of cords or threads extending substantially in the circumferential direction of the tire, at least one cover ply surrounding the breaker arrangement at least in the breaker arrangement's edge regions. In the preferred embodiment the breaker arrangement (4) has threads or cords (9) of non-metallic material and a material with a low thermal shrinkage or no thermal shrinkage is used as the material for the treads or cords (8) of the at least one cover ply (5).

Abstract: A motorcycle radial tire which comprises a tread curved so that the maximum cross section width of the tire lies between the tread edges, a carcass having at least one ply of organic fiber cords extending between beads of the tire and turned up around bead cores disposed one in each bead, a belt disposed radially outside the carcass and comprising a breaker and a band, the breaker comprising a first ply disposed adjacently to the carcass and a second ply disposed on the radially outside of the first ply, the first and second breaker plies made of parallel cords inclined with respect to the tire equator so that the first ply cords cross the second ply cords, the edges of the first breaker ply folded back upon the second breaker ply so that a space is provided between the axially inner edges of the folded portions, the band disposed radially outside the breaker to extend over said space, the band comprising a ply of organic fiber cords wound spirally at an angle of not more than 5 degrees with respect to the ti

Abstract: A pneumatic tire has a belt reinforcing structure comprising a folded belt ply and a spirally wound structure extending transversely between the folded edges of folded portions of the folded belt ply. No cut belts are used in the assembly. In an illustrated embodiment, both the folded belt ply and the spirally wound ply are reinforced with aramid cords. Also, a plurality of spirally wound plies can be used.

Abstract: A belted radial tire has a belt composed of a breaker and a band, the breaker disposed radially outside a carcass and comprising at least two plies of cords inclined with respect to the tire equator so that the cords in each ply cross the cords in the next ply, the band disposed on the radially outside of the breaker and composed of a strip of rubberized parallel organic fiber cords which strip is wound spirally and continuously around the breaker from its one edge to the other edge, the number of the organic fiber cords in the strip being in the range of 10 to 25, the winding pitches of the strip changed in the axial direction of the tire so that the pitches are greater in a central region of the breaker than side regions, the pitches in the side regions being substantially a half of the strip width, and the pitches in the central region being not less than the strip width.

Abstract: A pneumatic tire with carbon fiber cord reinforcement wherein the carbon fiber cords have a round cross sectional shape and a twist per inch (TPI) of 1.2 to 1.6 turns per inch (TPI) is provided. Preferably, the carbon fiber cords are coated with an RFL or epoxy/RFL adhesive. It is also preferred that carbon fiber cords having an S twist and carbon fiber cords having a Z twist be used in the same reinforcing plies in the tire. Especially preferred is the incorporation of carbon fiber cords in a folded belt.

Abstract: A pneumatic radial tire characterized in that at least two belt layers reinforced with cords of a high elastic modulus extending at an angle of 14.degree.-33.degree. with respect to the circumferential direction of the tire are arranged between a tread and a carcass, at least one of these belt layers being folded back at both end portions thereof toward the equator of the tire so as to wrap both end portions of any remaining belt layers, at least one reinforcing layer which is reinforced with thermally contractible organic fiber cords which extend at substantially 0.degree. with respect to the circumferential direction of the tire being inserted inside of each of the folded portions of the at least one folded belt layer, the width of the reinforcing layers being set to 10-70% of that of each of the folded portions.

Abstract: A pneumatic radial tire comprises a belt comprised of plural belt layers, in which at least one belt layer is formed by arranging particular twisted cords, which are obtained by twisting particular filament-resin composite bodies, at a particular end count. In this tire, the weight is light, the rolling resistance and steering stability as well as the resistances to bending of belt cord in the rapid turning and breaking of belt cord in the running on bad road are considerably excellent.

Abstract: A radial ply pneumatic tire (10) has carcass plies (13-15) reinforced by textile cords and folded axially around a pair of axially spaced bead cores (11,12) and a belt structure (30; 330) comprising at least two layers (32-34; 332-334) made of spirally wound strips. The spirally wound strips are reinforced by cords consisting at least in part of aramid yarns. Between each pair of neighboring layers (332-334) of spirally wound strips, a ply (340,341) reinforced by textile cords is interposed. Such a belt structure is more specifically suitable for an aircraft tire.

Abstract: A pneumatic vehicle tire with a radial carcass and a breaker reinforcement layer comprising a plurality of bandage strips each of which extend in the peripheral direction of the tire and which are differently overlapped when considered over the width of the breaker. The strips are preferably formed by a continuous winding of a single strip and may be combined with a conventional breaker ply.

Abstract: A radial tire for heavy duty vehicles having a steel belt layer with triangular structure which is composed of at least three belt plies of steel belt disposed on a carcass, and a middle layer which contains cords of aromatic polyamide fibers which is laid between first belt ply and second belt ply viewed from tread surface side among the belt plies.The middle layer has skirts which are folded over from a main portion of the middle layer and laid between the first and second belt plies so as to wrap around each axial outer end of the first belt ply.The cords of the first belt play and the cords of the second belt ply cross each other at an angle of from 10 to 30 deg. against the tire equator, and the cords of the middle layer slant in the same direction as that of first belt ply at an angle of 3 deg. or less against that of first belt ply.

Abstract: Reinforcing layers for bias tires comprising a laminated structure of a steel cord ply and composite cord plies made of aramid yarns and nylon yarns, said composite cord plies being disposed radially outwardly of the steel cord ply maintaining a full space between steel cords and composite cords and a nominal total denier of said composite cords being in the range of 4,000-10,000.

Abstract: A radial tire for passenger cars, comprising: a pair of bead cores; a radial carcass ply, the edges of which are turned up around bead cores; a tread; a belt layer composed of at least two plies of steel cords; and band layers folded over at the edges of the belt layer to form an upper layer portion radially outside the belt layer and a lower layer portion radially inside the belt layer, wherein the band layers are composed of organic fiber cords inclined by 5 to 45 degrees to the circumferential direction of the tire. A gap distance G1 between the upper layer portions of the band layers is in a range of 35 to 65% of the width WB of the belt layer, and the width W2 of the lower layer portion is longer than the width W1 of the upper layer portion and their difference W2-W1 is in a range from 5 to 20 mm.

Abstract: A tire for an airplane comprises a pair of bead cores; a carcass fixed around the pair of bead cores with its ends being turned up, the carcass having cords arranged at an angle of 60.degree. to 90.degree. with respect to an equator plane of the tire; a belt layer having cords arranged outside the carcass at an angle of 0.degree. to 30.degree. with respect to the equator plane of the tire; and a band arranged above the belt layer. The band has cords which have a higher modulus of tensile elasticity than that of the cords of the belt layer. The cords of the carcass and the belt layer are made of organic fibers having a modulus of tensile elasticity not greater than 1,000 kg/mm.sup.2. The tire may include a bead apex and a reinforcement layer positioned outside of the head apex. The reinforcement layer extends from a bottom of each of the pair of bead cores to a side wall of the tire.

Abstract: A pneumatic radial tire having improved cornering stability, service durability and rolling resistance is provided by using high-elasticity, high-strength vinylon fiber having specified elongation and strength as a cord material for at least one belt layer in a belt composed of at least two belt layers. Particularly, noise level can be reduced without damaging other tire performances by combining at least one layer of high-elasticity, high-strength vinylon fiber cords with at least one layer of steel cords as a belt of the tire.

Abstract: A pneumatic radial tire arrangement for a vehicle wherein each tire has a belt structure formed of two belt layers respectively made of steel cords and aromatic polyamide fiber cords and which have their edge portions folded back. Each tire is mounted to the vehicle with the folded back portion of the steel cord belt layer located towards the outer side of the vehicle to reduce steering pull during high speed performance of the vehicle.

Abstract: A radial ply pneumatic tire (10) has carcass plies (13,14,15) reinforced by cables comprising only yarns of aramid filaments, and belt plies (31-35) reinforced by cables comprising at least two yarns of aramid filaments and a core yarn consisting of at least one polyamide or polyester filament which have at least a partially oriented structure, said aramid yarns being adjacent to one another and twisted about said core yarn but not being twisted together with one another.

Abstract: Disclosed herein is a pneumatic radial tire for a passenger car wherein, among a plurality of belt layers, a belt layer or layers consisting of aromatic polyamide fiber cords are disposed on the side of a carcass layer, a belt layer or layers consisting of carbon fiber cords are disposed on the side of a tread portion in the proximity of the belt layer on the carcass layer side, the end portions of at least one of the belt layers on the carcass layer side, consisting of the aromatic polyamide fiber cords, are bent towards the tread portion so that the bent portions cover the end portions of the belt layer on the tread portion side, consisting of the carbon fiber cords.

Abstract: A pneumatic radial tire for passenger vehicles, having a belt reinforcement layer consisting of a steel cord layer and a layer of aromatic polyamide fiber cords having its side ends bent over toward each other, wherein the layer of aromatic polyamide fiber cords is formed by embedding in covering rubber of a 100% modulus of 30 to 70 kg/cm.sup.2, 40 to 70 parallel aromatic polyamide fiber cords of 0.55 to 0.65 mm in diameter per 5 cm distance in the direction at right angle to the lengthwise direction of these cords.