A belt cover layer is disposed in a tire, spanning between shoulder regions, and is formed by winding one belt cover material in a helical shape around a rotation axis on an outer side of the belt layer in a radial direction, the belt cover layer includes a lap winding portion between the shoulder regions, in which parts of circumferential portions, adjacent in a width direction, of the belt cover material wound in a helical shape are lap-wound in the radial direction, a width of the lap winding portion in the width direction is 3-30% of a width of the belt cover layer in the width direction, and in portions of the belt cover layer in the shoulder regions, the circumferential portions, adjacent in the width direction, of the belt cover material are wound with out being lapped in the radial direction.

A hoop reinforcement is provided for a tire for a heavy vehicle of construction plant type. 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 formed by a circumferential winding, in the circumferential direction (XX), of a ply of metallic reinforcers (8) forming an angle at most equal to 2.5 with the circumferential direction (XX), extending from an initial radially inner end (81) to a final radially outer end (82), forming a spiral, such that the hoop reinforcement (7) comprises at least two hooping layers (71, 72) around the entire circumference and at least three hooping layers (71, 72, 73) over an angular sector A, delimited by the initial and final ends (81, 82), respectively, of the hoop reinforcement (7). The hoop reinforcement (7) comprises at least one discontinuity (9) positioned circumferentially between the initial end (81) and final end (82), respectively, and any discontinuity (9) is positioned circumferentially, with respect to the initial or final end (81, 82), forming an angle (B1, B2) at least equal to 90.

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).

A tire includes a tire case (tire frame member) formed in a ring shape, and a belt layer that is provided at an outer periphery of the tire case (tire frame member), and in which a resin-covered cord, which is configured by covering a reinforcing cord with a covering resin is wound onto the outer periphery of the tire case (tire frame member) in a spiral pattern around a tire circumferential direction, and is bonded to the tire case (tire frame member). A chamfered portion is formed at a tire axial direction end portion of a tire radial direction inside face of the resin-covered cord.

A tire includes a ring-shaped tire case, and a belt layer that is provided at an outer periphery of the tire case, and in which a resin-covered cord, which is configured by covering a reinforcing cord with a covering resin is wound onto the outer periphery of the tire case in a spiral pattern around a tire circumferential direction and is bonded to the tire case, with sections of the resin-covered cord that are mutually adjacent in a tire axial direction being bonded to each other. An end portion at one tire axial direction side of a tire radial direction outside face of the resin-covered cord is positioned further toward the one tire axial direction side than an end portion at the one tire axial direction side of a tire radial direction inside face of the resin-covered cord, and an end portion on another tire axial direction side of the outside face is positioned further toward the one tire axial direction side than an end portion at the other tire axial direction side of the inside face.

A tire (1) comprises a crown zone (4) comprising a crown reinforcement (41) surmounted radially on the outside by a tread (40) formed from at least one material that is not a conductor of electricity, the crown reinforcement (41) comprising a plurality of layers (411, 412, 423) superposed on one another, each layer of the crown reinforcement comprising two ends in the circumferential direction, these two ends being joined together in an abutment region, the tread (40) comprising a weld region circumferentially offset by an angle of 180 degrees with respect to the region at which the radially outermost layer of the crown reinforcement (413) is superposed. The tire comprises at least one conducting strip (7) of a thickness at most equal to 2 mm and of small width, positioned between the tread and the crown reinforcement. The conducting strip (7) is located circumferentially in such a way as to be positioned at equal angular distances between the tread weld region and the region at which the radially outermost reinforcing layer is butted together, these two regions being diametrically opposite.

A tire is provided with a tire frame member that is made from resin and has a pair of bead portions, a pair of side portions that extend from the bead portions towards an outer side in a tire radial direction, and a crown portion that connects an outer side end in the tire radial direction of one side portion to an outer side end in the tire radial direction of another side portion, and with a crossing belt layer that is provided with plural reinforcing cords that are arranged in rows which are inclined relative to a tire rotation axis of the tire frame member and are coated with a resin material. The crossing belt layer is disposed either directly or via a resin layer on an outer side surface in the tire radial direction of the crown portion.

A tire comprises a crown zone comprising a crown reinforcement surmounted radially on the outside by a tread formed from at least one material that is not a conductor of electricity, the crown reinforcement comprising a plurality of layers superposed on one another, each layer of the crown reinforcement comprising two ends in the circumferential direction, these two ends being joined together in an abutment region, the tread comprising a weld region circumferentially offset by an angle of 180 degrees with respect to the region at which the radially outermost layer of the crown reinforcement is superposed. The tire comprises at least one conducting strip positioned between the tread and the crown reinforcement and located circumferentially as to be positioned at equal angular distances between the tread weld region and the region at which the radially outermost reinforcing layer is butted together, these two regions being diametrically opposite.

Provided are: a tire reinforcement member having an improved durability; and a tire whose weight is reduced and durability is improved by using the tire reinforcement member.

The tire reinforcement member is a tire reinforcement member 1 formed by winding a rubber strip 2 at an inclination with respect to the longitudinal direction of the member without any gaps while folding at width direction ends of the member, the rubber strip 2 being obtained by rubber-coating one reinforcing cord or a plurality of paralleled reinforcing cords. The rubber strip 2 substantially forms two reinforcing layers having different inclination directions. At a folding part T closest to a winding finish end 2e of the rubber strip 2, the rubber strip 2 is passed under an already wound rubber strip 2A and then folded, the already wound rubber strip 2A has been wound previous to the rubber strip 2 in an inclination direction different from that of the rubber strip 2.

On the tire equatorial plane, two of the tape-like members adjacent to each other in the tire circumferential direction are arranged such that the tire circumferential ends thereof are butted against each other, otherwise, at the end portions of the belt layer, two of the tape-like members adjacent to each other in the tire circumferential direction are arranged such that only the rubber portions overlap each other in the tire radial direction. In the attaching process, on the tire equatorial plane, two of the tape-like members adjacent to each other in the tire circumferential direction are attached so that they are butted against each other at tire circumferential ends thereof, otherwise, at the end portions of the belt layer, two of the tape-like members adjacent to each other in the tire circumferential direction are attached so that only the rubber portions overlap each other in the tire radial direction.