In a pneumatic tire, a belt cover disposed on an outer side in a radial direction of a belt layer includes a cover portion having a width equal to a width of the belt cover, and edge cover portions layered on the cover portion at two locations on both sides of the cover portion. Of the edge cover portions at the two locations, one of the edge cover portions is located on a radially inner side of the cover portion, and the other of the edge cover portions is located on a radially outer side of the cover portion. The belt cover is a single strip material having a band-like shape spirally wound about a tire rotation axis, and the cover portion at least partially includes a portion where circumferential portions adjacent in the width direction of the strip material that is spirally wound overlap in the radial direction.

Provided is a run-flat tire. A first bead filler is disposed on an outer circumferential side of a bead core, a second bead filler is disposed on an outer side in a tire width direction of a turned up portion of the carcass layer along the turned up portion of the carcass layer, and a thickness G on a first reference line of a side reinforcing layer, a thickness G1 on a second reference line of the side reinforcing layer, and a thickness G2 on a third reference line of the side reinforcing layer satisfy the relationships of 0.8×G≤G1≤1.0×G and 0.5×G≤G2≤0.7×G.

Provided is a pneumatic tire. A belt cover layer including organic fiber cords spirally wound along the tire circumferential direction is provided on the outer circumferential side of a belt layer in a tread portion. The belt cover layer includes at least one full cover layer covering the entire width direction of the belt layer, and the number of layers in the shoulder region is two or less. Polyethylene terephthalate fiber cords of which the elastic modulus at a load of 2.0 cN/dtex at 100° C. is in a range of 3.5 cN/(tex•%) to 5.5 cN/(tex•%) are used as the organic fiber cords constituting the belt cover layer. The ratio Sh/Ce of a rising amount Sh in the shoulder region and a rising amount Ce at a tire equator position during traveling at 240 km/h is 0.85 to 1.15.

A tire includes a carcass, a tread disposed radially outward of the carcass, a sidewall including a shoulder extends toward the tread, and a reinforcing structure positioned radially between the carcass and the tread. The reinforcing structure includes a plurality of belts extending axially toward the shoulder and an overlapping spiral wound strip positioned at a radially outermost portion of the reinforcing structure. The overlapping spiral wound strip includes a uniform width having groups of four first cords with a single second cord therebetween. The first cords include a hybrid construction and the second cords include a single material construction.

A pneumatic tire according to the present disclosure includes a ply including a plurality of cords arranged in parallel to each other, a cover rubber covering the ply and configuring a tire outer surface, and a reinforcement layer that, at a position of a cut edge of the ply, covers the cut edge of the ply on one side or both sides in a ply thickness direction. The reinforcement layer is configured by a non-woven fabric comprising metal fibers or a rubber sheet material having metal fibers embedded therein.

A pneumatic tire for use on trucks, the tire comprising a tread and a belt structure located radially inward of the tread, the belt structure including a pair of working belts, wherein the working belts are reinforced plies each comprising parallel reinforcement elements, wherein the angle of the reinforcement elements in the respective working belt ranges from 12 degrees to 35 degrees from the circumferential direction, wherein the belt structure further includes a low angle belt positioned between the working belts comprising parallel reinforcement elements angled at less than 5 degrees from the circumferential direction, and wherein a first and second narrow belt is positioned on the lateral ends of the low angle belt, and wherein the first and second narrow belt are each positioned radially inward of an axially outermost groove on each side of the tread.

A pneumatic tire having a dual reinforcing belt structure, which minimizes deformation of the tire tread section during high-speed driving, particularly deformation of the tire shoulder parts, suppresses a standing wave phenomenon, and enhances driving stability. The pneumatic tire having a dual reinforcing belt structure includes a tread section, a sidewall section and a bead section, in which the bead section is provided with a carcass in a turned-up manner, a plurality of belt layers are provided by lamination between the carcass and the tread section, and a reinforcing belt is provided on top of the belt layer, while the reinforcing belt is a dual reinforcing belt in which belts made of different materials are arranged.

Improve endurance of tire for heavy-duty vehicle of construction plant type. A hoop reinforcement has an axially continuous first hooping layer and axially discontinuous second hooping layer, first layer has an axial width LF1 at least equal to 25% and at most 75% of axial width LT of working reinforcement, the discontinuous second hooping layer consists of two hooping strips symmetrical with respect to equatorial plane (XZ) of tire, each extends axially from axially interior end as far as axially exterior end over an axial width LF2 which is at least equal to 10% and at most 35% of axial width LF1 of the first hooping layer, and the distributed tension at break TR of each hooping strip defined as the product of number D of reinforcers per mm times the force at break FR of each reinforcer expressed in daN, is at least equal to 100 daN/mm.

The pneumatic tire for passenger vehicle includes on a tread portion a main belt formed of at least two inclined belt layers formed of a rubberized layer of cords extending in a manner inclined with respect to a tire circumferential direction, and a reinforcing belt formed of at least one circumferential belt layer formed of a rubberized layer of cords extending along the tire circumferential direction, the reinforcing belt arranged on a tire radial outer side of the main belt, the main belt and the reinforcing belt arranged spanning from a tire equatorial plain of the tread portion to shoulder portion sides, wherein a thickness between the cords of two of the inclined belt layers adjacent to each other is larger in the shoulder portions than in a central portion of the tread portion.

In a pneumatic tire, a belt cover layer is provided on an outer circumferential side of a belt layer in a tread portion and includes organic fiber cords helically wound along a tire circumferential direction. As the organic fiber cord, a polyethylene terephthalate fiber cord is used which has a single yarn size fineness of 700 dtex or less and in which the number of twists is 30 twists or more/100 mm. A layer thickness of the belt cover layer is 1.6 times or more as large as a cord diameter of the organic fiber cord.