To increase a restraining force to a belt layer and to improve the durability of the tire. A band layer of a spirally wound band-like ply includes: a first ply portion extending from a starting end located between the tire equator and one end in the tire axial direction of a belt layer to the one end in the tire axial direction of the belt layer; a second ply portion extending from the one end in the tire axial direction of the first ply portion to the other end in the tire axial direction of the belt layer; and a third ply portion extending from the other end in the tire axial direction of the second ply portion to a terminal end located between the tire equator and the other end in the tire axial direction of the second ply portion. The band-like ply is continuous from the starting end to the terminal end without interruption.

A reinforced product, which can be used in particular for the reinforcing of a finished rubber article, comprises one or more textile or metallic reinforcing threads, the said thread or threads being covered individually or collectively with a sheath comprising a sheathing composition comprising one or more block copolymers comprising at least one polyamide block and at least one polyolefin block, the sheathed thread or threads being themselves embedded in a rubber composition.

This manufacturing method of a pneumatic tire having a tread reinforcing layer reduces tire mass while maintaining the durability performance of the tire. A tread reinforcing layer formation step includes a winding step for winding belt-shape plies around an approximately cylindrical winding surface. The winding step involves: a first winding step in which, with the side edges of the belt-shape plies spaced from one another, said belt-shape plies are spirally wound from a first end located on one side of the tire in the axial direction, to a second end located on the other side of the tire in the axial direction; and a second winding step in which, with the side edges of the belt-shape plies spaced from one another, said belt-shape plies are spirally wound from the second end to the first end in the direction opposite that in the first winding step. A lattice-form tread reinforcing layer is formed that has gaps substantially rhombic in shape and bounded by the belt-shape plies.

A tire includes a tire frame member, a reinforcing layer, and a housing recess. The tire frame member is circular and is formed from a resin material. The tire frame member includes a bead portion, a side portion, and a crown portion. The reinforcing layer is provided at a tire radial direction outer side of the crown portion, and comprises a reinforcing cord extending in a direction intersecting the tire width direction, the reinforcing cord being covered by rubber. The housing recess is formed in the crown portion and extends in a tire circumferential direction. At least an inner circumferential portion of the reinforcing layer is housed in the housing recess with side faces of the reinforcing layer contacting recess wall faces on both tire width direction sides of the housing recess.

A tire including a tire frame member, a reinforcing layer, and projections. The tire frame member is circular and is formed from a resin material, and includes a bead portion, a side portion, and a crown portion. The reinforcing layer is provided at a tire radial direction outer side of the crown portion, and comprises a reinforcing cord extending in a direction intersecting the tire width direction, the reinforcing cord being covered by rubber. The projections are respectively formed at both tire width direction sides of the crown portion such that the reinforcing layer is interposed between the projections. Each projection projects toward the tire radial direction outer side, and includes a projection wall face contacted by a side face of the reinforcing layer at the tire width direction inner side of the projection.

In a pneumatic tire including belt layers in a tread portion, the belt layers include a cross belt pair in which reinforcing cords constituting the belt layers intersect each other between layers, a distance between a tire outer surface and an end point of the cross belt pair measured in parallel to a line segment connecting a ground contact edge and an edge portion on the outer side of the outermost groove in the width direction on an outer surface of the tread portion satisfies 15 mm?D1?25 mm, a distance between the belt layer and a carcass layer at a position corresponding to an outer end point in an effective width of the cross belt pair satisfies 2.5 mm?G1?9.0 mm, and a ratio between a height H? from a core separation point to a maximum outer diameter position of the carcass layer and a height H? to the maximum width position satisfies 0.55?H?/H??0.65.

In a tire 2, a band 14 has a helically wound structure in which a strip 26 having a cord 28 is wound in a circumferential direction. The band 14 includes a center portion C disposed at a center in an axial direction, and a shoulder portion S disposed outward of the center portion C in the axial direction. A pitch Pc of the strip 26 in the center portion C is not less than 2.0 times a width W of the strip 26 and not greater than 2.5 times the width W. A pitch Ps of the strip 26 in the shoulder portion S is not less than 0.8 times the width W of the strip 26 and not greater than 1.2 times the width W.

A crown reinforcement of a tyre includes at least one crown triangulation belt having a given width value (R). The belt essentially includes elementary widths each having a given width value (B). Each of the elementary widths has a flattened cross section and forms an angle () with a circumferential direction of the tyre, the angle () being between 10 and 80. Adjacent elementary widths, which are positioned directly next to each other, are separated by a groove of a given width value (j) and are connected to each other by one or more weak bridges.

A tire includes: a tire case serving as an example of a circular tire frame member that is formed using a frame resin material; and a reinforcing cord member that is disposed at an outer circumference of the tire case, that is configured by a reinforcing cord covered with a resin covering layer, that is wound along a tire circumferential direction so as to form a spiral shape, that is bonded to the tire case, and in which tire axial direction adjacent portions of the reinforcing cord member are bonded together.

Tire having at least one carcass reinforcement, a tread, a belt reinforcer having a first and a second end and: a reinforcing ply, having a transverse half-width L2, having a reinforcing polymer layer between two layers of coating rubber, at least one hooping ply, surmounting the reinforcing ply, having a transverse half-width L1, and filamentary reinforcing elements, parallel two by two, forming an angle at most equal to 7 with respect to the circumferential direction, the tire having at least one layer of edge uncoupling rubber, positioned at least radially between the hooping ply and the reinforcing ply and positioned at at least one transverse end of the belt reinforcer, the layer of edge uncoupling rubber having a total length between 10 and 40 mm and a thickness between 0.2 and 1.2 mm, having at least one reinforcing ply, and at at least one end of the belt reinforcer, the half-widths L1 and L2 are different, and manifest a difference (L1L2) between 5 and 10 mm.