A pneumatic tire comprises a carcass layer, a belt layer disposed on the outer side in the tire radial direction of the carcass layer, and tread rubber disposed on the outer side in the tire radial direction of the belt layer. The belt layer is formed by laminating a pair of cross belts having belt angles with an absolute value from 10 to 45 both inclusive and mutually opposite signs, and a circumferential reinforcing layer having a belt angle within a range of 5 relative to the tire circumferential direction. The distance (Gcc) from the tread profile to the tire inner circumferential surface along the tire equatorial plane and the distance (Gsh) from the tread edge to the tire inner circumferential surface have a relationship satisfying 1.10Gsh/Gcc. The groove depth (Dsh) and under-groove gauge (UDsh) of the outermost circumferential main groove have a relationship satisfying 0.20UDsh/Dsh.

A pneumatic tire includes bead cores, a carcass ply and a belt. The carcass ply includes: a first ply having a central portion positioned inward of the belt in the tire radial direction, a pair of side portions extending inward from opposite ends of the central portion in the tire radial direction, and folded-up portions extending from the respective side portions, being folded up around the respective bead cores; and a second ply being discontinuous and disposed outward of the first ply in the tire radial direction, having a pair of ply pieces provided with inner ends positioned on respective sides of the central portion of the first ply, side portions extending inward from the respective inner ends in the tire radial direction, and folded-up portions extending from the respective side portions, being folded up around the respective bead cores. The first ply has a ply-overlapping portion.

A pneumatic tire of the present disclosure comprises a resin-coated belt, a base ring that comes in contact with a tire widthwise outer end of the resin-coated belt is provided on a tire radial inside of the resin-coated belt, a tire widthwise inner end of the base ring is located on an inner side of the tire widthwise outer end of the resin-coated belt in a tire width direction, while a tire widthwise outer end of the base ring is located on an outer side of the tire widthwise outer end of the resin-coated belt in the tire width direction, and the resin-coated belt has a rigidity changing portion where a rigidity changes from the tire widthwise inner side toward outer side in a tire widthwise region from the tire widthwise inner end of the base ring to the tire widthwise outer end of the resin-coated belt.

A pneumatic tire includes a carcass, an intersecting belt layer, and a restraining member. The carcass spans from one bead portion to another bead portion. The intersecting belt layer is arranged at an outer circumferential side of the carcass and is configured including plural belt plies each configured by covering a row of plural mutually parallel belt cords with a resin, such that the belt cords of one of adjacent belt plies and the belt cords of the other of the adjacent belt plies intersect each other. The restraining member is arranged adjacent to end portions of the belt plies so as to restrain movement of the end portions.

A pneumatic tire of the present disclosure includes a resin-coated belt comprising a wire coated with a coating resin, and a base ring formed at a tire radial inner side of the resin-coated belt. The base ring is in contact with a tire widthwise outer end of the resin-coated belt. An outer end of the base ring in a tire width direction is positioned in the tire width direction outside the tire widthwise outer end of the resin-coated belt. The base ring includes a rigidity reduction portion of the base ring at a portion in the tire width direction outside the tire widthwise outer end of the resin-coated belt. The rigidity reduction portion has rigidity reduced from a tire widthwise inner side to a tire widthwise outer side.

A pneumatic tire of the present disclosure comprises a resin-coated belt, a base ring that comes in contact with a tire widthwise outer end of the resin-coated belt is provided on a tire radial inside of the resin-coated belt, the base ring has a tire widthwise outer end located on an outer side of the tire widthwise outer end of the resin-coated belt in a tire width direction, and comprises an auxiliary belt that covers a tire radial outside of the base ring in a tire widthwise region from the tire widthwise outer end of the resin-coated belt to at least a part of a tire widthwise outside, and that covers a tire radial outside of the resin-coated belt in a tire widthwise region from the tire widthwise outer end of the resin-coated belt to at least a part of a tire widthwise inside.

A pneumatic tire of the present disclosure comprises a resin-coated belt and a base ring that comes in contact with a tire widthwise outer end of the resin-coated belt is provided, the base ring has a tire widthwise inner end located on an inner side of the tire widthwise outer end of the resin-coated belt in a tire width direction, the base ring has a tire widthwise outer end located on an outer side of the tire widthwise outer end of the resin-coated belt in the tire width direction, and the base ring includes a rigidity decreasing portion having a rigidity that decreases from the outer side in the tire width direction toward the inner side in the tire width direction, in a portion of the base ring on an inner side of the tire widthwise outer end of the resin-coated belt in the tire width direction.

A manufacturing method of a pneumatic tire of the present disclosure is a manufacturing method of a pneumatic tire to manufacture the pneumatic tire comprising a resin-coated belt comprising a wire coated with a coating resin, the pneumatic tire comprises a base ring that comes in contact with a tire widthwise outer end of the resin-coated belt on an inner side of the resin-coated belt in a tire radial direction, and the manufacturing method comprises a base ring forming step of winding a ribbon member about a tire axis, to form the base ring.

The manufacturing cost of a hoop reinforcement of a tire for a heavy vehicle of construction plant type is reduced. The crown reinforcement (3) of the tire (1), radially on the inside of a tread (2), comprises a protective reinforcement (6), a working reinforcement (5) and a hoop reinforcement (7). The hoop reinforcement (7) is made up of at least two hooping layers (71, 72), each hooping layer (71, 72) comprising metallic reinforcers that are coated in an elastomeric coating material and form an angle at most equal to 2.5 with the circumferential direction (XX). Each hooping layer (71, 72) is formed by a circumferential winding in a ring, in the circumferential direction (XX), of at least one portion of a ply of metallic reinforcers (81, 82), extending from an initial end (811, 821) to a final end (812, 822), such that the hooping layer (71, 72) comprises at least one discontinuity (91, 92).

Provided is a heavy load tire that includes: the first belt layer including a cord extending in the tire circumferential direction; the second belt layer including a cord extending to be inclined with respect to the tire circumferential direction; and the third belt layer including a cord extending to be inclined at an angle of 30 or less with respect to the tire circumferential direction in a direction opposite to that of the cord of the second belt layer. The first, the second, and the third belt layer are arranged in the stated order from the inner side to the outer side in the tire radial direction. The third belt layer has a width w.sub.3 that is 80% or more of a tread width w, and the second belt layer has a width w.sub.2. The width w.sub.2 and the width w.sub.3 satisfy the relation w.sub.2<w.sub.3.