Provided is an aircraft tire which has both satisfactory light weight and satisfactory separation durability of carcass ply ends. An aircraft tire (10) includes a pair of bead cores (1), and a carcass (2) extending between the pair of the bead cores (1). In this aircraft tire (10), the carcass (2) includes at least one layer of a turn-up ply (2a) which is composed of a main body (2aa) and folded portions (2ab), and at least one layer of a down ply (2b) which covers a tire width-direction outer side of the respective folded portions (2ab) of the turn-up ply (2a) and extends to at least a tire radial-direction inner side of the respective bead cores (1); rubber-cord reinforcing members (6) are each arranged between the main body (2aa) of an outermost turn-up ply (2a) and the folded portion (2ab) of the turn-up ply (2a) extending to a tire radial-direction outermost side, and between the folded portion (2ab) of the turn-up ply (2a) extending to the tire radial-direction outermost side and an innermost down ply (2b); and cords of the rubber-cord reinforcing members (6) have an elongation at break of not less than 30%.

A tire includes: a pair of beads having bead cores and a bead filler extending to an outer side in a tire-radial direction of the bead core; a carcass ply extending from one of the bead core of one bead to the bead core of the other bead, and folded back around each of the bead cores; a first pad disposed at an outer side in a tire-width direction of a folding end of the carcass ply which is folded back; a second pad disposed at an outer side in the tire-width direction of the first pad; and rim strip rubber disposed at least at a part on an outer side in the tire-width direction of the second pad, in which an electronic component is provided to interpose the second pad and the rim strip rubber.

A tire for a motor vehicle comprising: two beads (20); two sidewalls (30) meeting at a crown (25); at least one carcass reinforcement (160) extending from the beads (20) through the sidewalls (30) as far as the crown (25), the carcass reinforcement (160) having a plurality of carcass reinforcing elements and anchored in the two beads (20) by a turn-up around the annular reinforcing structure (70), so as to form in each bead a main strand (162) and a turn-up strand (163); and a stiffening reinforcement (140) arranged in at least one sidewall of the tire, said stiffening reinforcement (140) having a radially inner end (141) and a radially outer end (142), the stiffening reinforcement being formed of a plurality of stiffening elements oriented at an angle less than or equal to 10 relative to a circumferential direction of the tire.

A chafer of a heavy load tire is arranged between a bead core and a carcass and is formed by an organic fiber. As a distance L1 is defined by a linear distance between a bead innermost portion, which is a portion of the bead core at an innermost side in the tire width direction, and an outer end in a tire radial direction of the chafer, and a distance L2 is defined by a linear distance between the bead innermost portion and a carcass outermost portion, which is a portion of a carcass body portion at an outermost side in the tire width direction, L1/L25/12 is fulfilled.

A tire includes a tread, a sidewall extending from one edge of the tread approximately in a radially inward direction to a bead structure, and a carcass extending along an axially inner side of the sidewall to the bead structure. The carcass includes a first ply and a second ply extending radially inward from the sidewall to a terminal end directly adjacent the bead structure. The bead structure includes a circumferentially extending bead core axially inward of the sidewall, a chafer extending radially inward toward the bead core, an apex abutting the bead core, and an inner stiffener member disposed between the first ply and the apex, the inner stiffener member extending radially outward from a location proximate the bead core to a location radially outward from the apex.

A pneumatic radial tire includes a pair of opposing bead areas, in which each bead area includes a bead core and a bead apex. At least one carcass reinforcing ply includes a turn up at each bead core, and each turn up includes a radially outward end. A pair of chippers is disposed axially inwardly of each turn up outward end, in which the pair of chippers includes a first chipper and a second chipper. The first chipper is disposed axially inwardly of the bead apex, and the second chipper is disposed axially outwardly of the first chipper and axially inwardly of the bead apex. Forces due to deflection of the tire are limited by the pair of chippers to reduce stresses along each turn up.

In an apex 34 of a tire 2, a reinforcing portion 48 is located inward of a main body 46 in an axial direction. When a position on an outer surface of the tire 2 at which position a height from a BBL is 14 mm is defined as a first point P1 and a position on the outer surface of the tire 2 at which position a height from the BBL is 20 mm is defined as a second point P2, the reinforcing portion 48 overlaps the first point P1 and the second point P2 in a radial direction. A loss tangent of the reinforcing portion 48 is equal to a loss tangent of the main body 46 or less than the loss tangent. A hardness of the reinforcing portion 48 is equal to a hardness of the main body 46 or greater than the hardness.

A tire for a motor vehicle comprising: two beads (20); two sidewalls (30) meeting at a crown (25); at least one carcass reinforcement (160) extending from the beads (20) through the sidewalls (30) as far as the crown (25), the carcass reinforcement (160) having a plurality of carcass reinforcing elements and anchored in the two beads (20) by a turn-up around the annular reinforcing structure (70), so as to form in each bead a main strand (162) and a turn-up strand (163); and a stiffening reinforcement (140) arranged in at least one sidewall of the tire, said stiffening reinforcement (140) having a radially inner end (141) and a radially outer end (142), the stiffening reinforcement being formed of a plurality of stiffening elements oriented at an angle less than or equal to 10? relative to a circumferential direction of the tire.

This tire is provided with reinforcing cord layers that reinforce a bead part. The reinforcing cord layers are such that at the bead part at the inner side of vehicle mounting, the number of layers of the reinforcing cord layers with respect to a bead filler is greater at the inner side in the direction of tire width compared to the outer side in the direction of tire width with respect to the bead filler, and at the bead part at the outer side of vehicle mounting, the number of layers of the reinforcing cord layers with respect to the bead filler is greater at the outer side in the direction of tire width compared to the inner side in the direction of tire width with respect to the bead filler.

The present invention provides a pneumatic tire having improved durability while maintaining or improving good handling stability. The present invention relates to a pneumatic tire including an outer apex formed from a rubber composition, the rubber composition having a thermal conductivity of 0.60 W/m.Math.K or higher.