Provided is a stretching device for stretching an apex filler strip prior to application to a bead for a tire. The stretching device includes a stretching roller and a plurality of guide rollers for guiding the apex filler strip in a loop around the stretching roller. The plurality of guide rollers is arranged for receiving the apex filler strip in an entry orientation and for discharging the apex filler strip in an exit orientation. The plurality of guide rollers is arranged for guiding the one side of the apex filler strip in the entry orientation and the exit orientation under angles different from the support angle (H) with respect to rotation axis (R) of the stretching roller such that the apex filler strip is twisted over a twisting angle of at least forty-five degrees.

A tire manufacturing method includes: a frame forming process of forming a tire frame member using a resin material; an unvulcanized rubber placement process of disposing unvulcanized rubber so as to span from an outer face of a side portion across to an inner face of a bead portion of the tire frame member; and a vulcanization process of vulcanization molding the unvulcanized rubber using a vulcanization machine in which a recessed portion is formed in an inner side mold face among mold faces for vulcanization molding the unvulcanized rubber, the inner side mold face being for vulcanization molding part of the unvulcanized rubber disposed on the inner face of the bead portion.

A tire manufacturing method includes: a frame forming process of forming a tire frame member using a resin material; an unvulcanized rubber placement process of disposing unvulcanized rubber so as to span from an outer face of a side portion across to an inner face of a bead portion of the tire frame member; and a vulcanization process of vulcanization molding the unvulcanized rubber using a vulcanization machine in which a recessed portion is formed in an inner side mold face among mold faces for vulcanization molding the unvulcanized rubber, the inner side mold face being for vulcanization molding part of the unvulcanized rubber disposed on the inner face of the bead portion.

A cutting device for bead core steel wire includes a first holder that holds a first blade body, a second holder that holds a second blade body, and a driver that moves one of the first holder and the second holder relative to the other of the first holder and the second holder. At least one of the first blade body and the second blade body is rod-shaped and includes a plurality of cutting edges arranged on a periphery of the at least one of the first blade body and the second blade body.

A cutting device for bead core steel wire includes a first holder that holds a first blade body, a second holder that holds a second blade body, and a driver that moves one of the first holder and the second holder relative to the other of the first holder and the second holder. At least one of the first blade body and the second blade body is rod-shaped and includes a plurality of cutting edges arranged on a periphery of the at least one of the first blade body and the second blade body.

A guide device includes a guideway through which a steel wire passes when the steel wire is fed to a former. The guideway includes an inner surface. At least a portion of the inner surface includes a slit or recess at a position corresponding to a direction in which the steel wire is bent.

A guide device includes a guideway through which a steel wire passes when the steel wire is fed to a former. The guideway includes an inner surface. At least a portion of the inner surface includes a slit or recess at a position corresponding to a direction in which the steel wire is bent.

A manufacturing method of a bead core of the present disclosure comprises an annular body forming step of winding a strip member formed by coating one or more bead wires with a coating resin to form an annular body, and a resin coating step of coating the annular body formed in the annular body forming step with a resin. The resin is a resin different from the coating resin.

A manufacturing method of a bead core of the present disclosure comprises an annular body forming step of winding a strip member formed by coating one or more bead wires with a coating resin to form an annular body, and a resin coating step of coating the annular body formed in the annular body forming step with a resin. The resin is a resin different from the coating resin.

The invention relates to a tire (1), the tire (1) being rotatable about an axis of rotation (2) in a direction of rotation (3), having at least one electromagnetic transmitting and receiving device (4), at least one bead core (5) and at least one apex (6), wherein the at least one apex (6) is configured from a first homogeneous rubber material (7) and from a second homogeneous rubber material (8), wherein the first homogeneous rubber material (7) is disposed on the at least one bead core (5) and the first homogeneous rubber material (7) in spatial terms is disposed between the at least one bead core (5) and the one second homogeneous rubber material (8), wherein the at least one electromagnetic transmitting and receiving device (4) is disposed within the at least one apex (6).