The present invention provides a tire that uses an elastomer-metal cord composite, which composite is obtained by coating metal cords with an elastomer, each metal cord being composed of a bundle of metal filaments arranged without being twisted, and which composite is capable of highly improving the performance of the tire. The above-described tire is a tire (100) including a belt (105) which includes at least two belt layers (105a) and (105b). In this tire, the belt layers (105a) and (105b) are each obtained by coating metal cords (2) with an elastomer (3), each metal cord (2) being composed of a bundle of a plurality of metal filaments (1) arranged in a row without being twisted; the metal filaments (1) are shaped, and at least one pair of adjacent metal filaments (1) in the metal filaments (1) have different phases from each other; each of the belt layers (105a) and (105b) has a thickness of more than 0.30 mm and less than 1.00 mm; and the distance in the tire radial direction between the metal cords (2) in the two adjacent belt layers (105a) and (105b) is 0.10 mm or more and 1.20 mm or less, at the center of the tire.

A manufacturing apparatus of a rubber sheet containing a steel cord, including a feeding device which feeds the steel cord while keeping a specified tension; a forming device which winds the steel cord being fed by the feeding device around engagement parts spaced from each other with a predetermined width; and a placement device which places on a rubber sheet member, the steel cord wound around the engagement parts with the predetermined width. The forming device includes forming parts which press bent portions of the steel cord wound around the engagement parts to form a bending shape of the bent portions, and the placement device includes a plurality of retaining parts disposed in two rows spaced apart from each other with the predetermined width to retain the bent portions in a state in which the steel cord having the bending shape is placed on the rubber sheet member.

A tire includes a tread reinforcing layer. The tread reinforcing layer includes a ply reinforcing portion in which belt-shaped plies are wound. The ply reinforcing portion includes a lattice-shaped portion in which a plurality of the first inclined portions and a plurality of the second inclined portions intersect with each other such that side edges of the first inclined portions and side edges of the second inclined portions do not contact with each other so as to have space portions between them. Each of the first inclined portions and the second inclined portions has an angle with respect to a tire circumferential direction continuously decreased from an inner side in a tire axial direction to an outer side in the tire axial direction.

A band 12 includes a center portion C, a pair of intermediate portions M, and a pair of outer end portions E. The center portion C is formed from a first band member 40 and that extends in a circumferential direction. Each intermediate portion M is formed from a second band member 42 and that extends so as to form a mesh-like shape. The second band member 42 includes a plurality of first tilt portions 44 extending so as to be tilted relative to the circumferential direction and a plurality of second tilt portions 46 extending so as to be tilted relative to the circumferential direction in a direction opposite to a direction in which the first tilt portions 44 are tilted. Each outer end portion E is formed from a third band member 54 and that extends in the circumferential direction.

Tire comprising at least one working layer (41). The radially outermost one thereof comprises at least one undulation (412) radially on the outside of the points of the working layer (41) that are in line with the centre of the bottom face (243) of the major groove (24) closest to undulation (412). The undulation (412) of the radially outermost working layer (41) is such that, over at least 10% of the radially outer surface (ROS) of the said working layer (41), the radial distance (do) between the radially outer surface (ROS) and the tread surface (21) is at least 1 mm less than the radial distance (dc) between the radially outer surface (ROS) and the tread surface (21), which is the distance in line with the centre of the bottom face (243) of the major groove (24) closest to the said undulation (412).

Provided are: an elastomer-metal cord composite capable of improving the performance of a tire, in which composite a metal cord composed of a bundle of metal filaments that are parallelly aligned without being twisted together is coated with an elastomer; and a tire including the same. An elastomer-metal cord composite (10) is obtained by coating, with an elastomer (3), a metal cord (2) composed of a bundle of two to ten metal filaments (1) that are parallelly aligned in a single row without being twisted together. The metal filaments (1) are patterned in the same patterning amount at the same pitch, and the metal cord (2) includes at least one pair of adjacent metal filaments (1) having different phases from each other.

Provided are: an elastomer-metal cord composite capable of improving the performance of a tire, in which composite a metal cord composed of a bundle of metal filaments that are parallelly aligned without being twisted together is coated with an elastomer; and a tire including the same. An elastomer-metal cord composite (10) is obtained by coating, with an elastomer (3), a metal cord (2) composed of a bundle of two to ten metal filaments (1) that are parallelly aligned in a single row without being twisted together, and the metal cord (2) includes at least one pair of adjacent metal filaments (1) being different from each other in at least either of patterning amount and patterning pitch in a direction perpendicular to an extending direction of the metal filaments (1).

A radial tire for an aircraft, the radial tire having a rim diameter of 20 inches or less includes a pair of bead portions; a pair of sidewall portions extending outward from the bead portions in a substantially radial direction; a tread portion that couples together respective radial outer ends of the sidewall portions; a toroidal carcass layer reinforcing a portion between bead cores embedded in the bead portions; a belt layer and a tread that are sequentially laminated on an outer side of the carcass layer in the radial direction, wherein a value M obtained by dividing a tire external diameter D by a distance L between bead heels of the bead portions is in a range of from 4.1 to 5.4.

A manufacturing apparatus of a rubber sheet containing a steel cord, including a feeding device which feeds the steel cord while keeping a specified tension; a forming device which winds the steel cord being fed by the feeding device around engagement parts spaced from each other with a predetermined width; and a placement device which places on a rubber sheet member, the steel cord wound around the engagement parts with the predetermined width. The forming device includes forming parts which press bent portions of the steel cord wound around the engagement parts to form a bending shape of the bent portions, and the placement device includes a plurality of retaining parts disposed in two rows spaced apart from each other with the predetermined width to retain the bent portions in a state in which the steel cord having the bending shape is placed on the rubber sheet member.

Crown reinforcement of an aircraft tire with improved mechanical strength in order to increase the burst pressure of the tire, during a standard pressure test. An aircraft tire comprises a working reinforcement made up of a strip (5) wound continuously in a zigzag, from a starting end (51) to an ending end (52), in a circumferential direction (XX) of the tire, along a periodic curve (7) forming a non-zero angle A with the circumferential direction (XX) of the tire and in an equatorial plane (XZ) of the tire. The starting end (51) and the ending end (52) of the strip (5) are positioned axially at a distance (DI, DF) at most equal to 0.25 times the axial width W.sub.T of the working reinforcement from an axial end (E1, E2) of the working reinforcement.