A pneumatic tire includes a belt having an intersecting belt with a wide belt layer, a narrow belt layer, and a reinforcing layer between the wide belt layer and the narrow belt layer. A widthwise inner end of the reinforcing layer is on an inner side of the narrow belt layer, a widthwise outer end of the reinforcing layer is on an outer side of the narrow belt layer but on the inner side of the wide belt layer; core-sheath type composite fibers, whose core portion is composed of a high-melting-point resin having a melting point of 150 C. or higher and sheath portion composed of resin material containing an olefin-based polymer having a melting point not higher than tire vulcanization temperature, are embedded in the reinforcing layer; and an angle of the core-sheath type composite fibers is substantially the same as a reinforcing cord of the narrow belt layer.

A tire comprises a tread which comprises a plurality of tread pattern elements (1) delimited by cut-outs (3, 4), the tread pattern elements respectively comprising at least one lateral face (13, 14, 15, 16), and a first rubber composition (FC) at least partially covered on at least one of the lateral face (13, 14, 15, 16) with a layer of a second rubber composition (SC) based on an elastomer matrix comprising more than 55 phr and up to 100 phr of a first diene elastomer having a glass transition temperature of less than 25 C. and 0 to less than 45 phr of a second diene elastomer, a reinforcing filler comprising more than 100 phr of a reinforcing inorganic filler, and more than 45 phr of a plasticizing agent predominately comprising at least one hydrocarbon resin having a glass transition temperature of more than 20 C.

Provided is a tire including a spiral cord layer formed by spirally winding a reinforcing cord, in which tire the occurrence of uneven wear attributed to the spiral cord layer is suppressed. The tire includes: a carcass (14) which toroidally extends between a pair of bead portions; and a spiral cord layer (1) which is arranged on the tire radial-direction outer side of the carcass in a crown portion and in which an upper layer (1A) and a lower layer (1B) are formed by spirally winding a reinforcing cord. At least one circumferential belt-reinforcing layer (17), whose cord direction is substantially a tire circumferential direction, is arranged on the tire radial-direction outer side of the spiral cord layer, and a tire widthwise length We of the circumferential belt-reinforcing layer is in a range of 40% to 90% of a tire widthwise length Ws of the spiral cord layer.

A run-flat tire has: a pair of bead cores; a carcass that straddles the pair of bead cores, and having end portions that are anchored on the bead cores; side reinforcing rubbers that are provided at tire side portions, and that extend in a tire radial direction along an inner surface of the carcass; a belt layer that is provided at an outer side, in a tire radial direction, of the carcass, and that is formed by covering a cord with resin; and a tread that is provided at an outer side, in a tire radial direction, of the belt layer.

One embodiment of the present invention provides a rubber reinforcement material which comprises a fiber substrate, an adhesive layer disposed on the fiber substrate, a rubber compound layer disposed on the adhesive layer, and resorcinol-formaldehyde-latex (RFL), wherein the rubber compound layer has a thickness of 5 m to 200 m.

Crown reinforcement of an aircraft tire comprises a working reinforcement (2) radially inside of tread (3) and radially outside of carcass reinforcement (4). Working reinforcement (2) comprises two working bi-plies (21, 22) radially superposed with respective axial widths (L.sub.1, L.sub.2), from first axial end (I.sub.1, I.sub.2) to second axial end (I.sub.1, I.sub.2). Each working bi-ply (21, 22) comprises two working layers (211, 212; 221, 222) radially superposed and respectively made up of axially juxtaposed portions of strip (5) of axial width W extending circumferentially in periodic curve (6) that forms, in the equatorial plane (XZ) of the tire and with the circumferential direction (XX) of the tire, a non-zero angle A and has a radius of curvature R at its extrema (7). The difference DL between the respective axial widths (L.sub.1, L.sub.2) of the radially superposed working bi-plies (21, 22) is at least equal to 2(W+(RW/2)(1cos A)).

A cord for reinforcing elastomers excellent in adhesion to elastomers such as rubber is provided. The cord is a cord for reinforcing elastomers (10) that includes metallic filaments (1) and a resin filament (2) twisted together, the resin filament (2) being made from a polymeric material having a melting point or softening point of 80 to 160 C. The cord for reinforcing elastomers includes a core and at least one sheath layer, wherein, after vulcanization, a distance w between metallic filaments (1b) forming an outermost sheath layer is 100 m or less, and, on a cross section of the cord taken along a direction orthogonal to an axial direction, a filling ratio, which is a ratio of an area of a polymeric material (3) derived from the resin filament (2) to a gap region is 52 to 120%, where the gap region is defined as a portion occupied by a material other than the metallic filaments (1) within a region formed by connecting the centers of the individual metallic filaments (1b) constituting the outermost sheath layer.

A metal-resin composite member for a tire, comprising plural metal cords that are positioned alongside each other, an adhesive layer that is disposed on the metal cords, and a resin layer that is disposed on the adhesive layer, the metal-resin composite member satisfying at least one of the following (1) or (2): (1) the adhesive layer is independently disposed on each of the plural metal cords, and at least one of the adhesive layers has a cross-sectional shape that has a projecting portion; (2) the adhesive layer is integrally disposed on all of the plural metal cords, and a region consisting of the metal cords and the adhesive layer has a cross-sectional shape that has, between the metal cords, a portion that is narrower in width than a portion at which the metal cords are disposed.

According to the present disclosure, there is disclosed a hybrid tire cord capable of realizing high performance and weight reduction of a tire by having strong adhesion to rubber and excellent fatigue resistance as well as high tenacity and high modulus by providing a cabled yarn in which an aramid hybrid Z-twisted yarn, composed of an aramid multifilament yarn and an aramid spun yarn, and a general-purpose Z-twisted yarn are S-twisted together. There is also provided a method for manufacturing the same.

A tire (10) for two-wheeled vehicles comprises a crown (12) comprising: a tread (20), and a hoop reinforcement (17) comprising at least one hooping ply (19) comprising one or more hoop reinforcing elements (44) comprising an assembly made up of a multifilament strand of aromatic polyamide or aromatic copolyamide (47) and of a multifilament strand of aliphatic polyamide (48). The twist factor K of the hoop reinforcing element (44) ranges from 5.5 to 6.5. The tire (10) is obtained by a method comprising a step of manufacturing the hooping ply (19), in which the bonded reinforcing elements (44) are embedded in a polymer composition in order to form the uncured hooping ply, the equivalent initial tensile modulus of the uncured hooping ply ranging from 330 to 620 cN/tex/dm.