The method comprises the steps of a) forming a carcass composed of a cured rubber material and b) overmolding, on the carcass, at least one thermoplastic elastomer material in order to finish the pneumatic tire.

One or more embodiments of the present invention provide a method for applying a dual compound coextruded continuous strip of a first compound and a second compound, the method comprising a first extruder for processing a first compound and a second extruder for processing a second compound, wherein the outlet from the first extruder is in fluid communication with a first channel of a housing, and the outlet from the second extruder is in fluid communication with a second channel of the housing, wherein a gear pump is positioned in each channel, wherein a nozzle is in fluid communication with an outlet of the first channel and an outlet of the second channel, and a coextruded continuous strip is produced. The ratio of the first compound to the second compound may be adjusted instantaneously.

The method includes the step of forming a carcass from at least one first material based on a thermoplastic elastomer. The method continues with the step of forming, on the carcass, at least bead zone from at least one second material based on a thermoplastic elastomer to form an assembly. The method proceeds with the step of forming, on the assembly an additional part from at least one third material based on a thermoplastic elastomer.

In a tire or a tire manufacturing method, a bead section includes a bead member formed by integrally molding a bead core, in which a resin material covers bead cords, and a bead filler made with a resin material covering the bead core, and around which a carcass ply, in the tire, is folded. In a cross-section along a tire widthwise direction and a tire radial direction of the bead member, the bead core is arranged by being shifted with respect to a width-directional center of the bead member.

The invention relates to a method for forming a nonpneumatic tire that is constructed from a thermoplastic elastomer which is pre-tensioned during the process of its formation. The Pretention is provided by a thermal means that is naturally available in the forming process. This creates an efficient process of manufacturing by creating pretention without the complexity of adding pretention from mechanical means. The method for forming the non-pneumatic tire includes inserting a tread portion (101) and an annular beam (102) having circumferential reinforcement into a mold, the mold supporting the tread pattern only on an outer radial extent of the tread pattern, inserting a rim (104) extending radially inward from the annular beam (102), and forming an annular support (103) comprised of a thermoplastic elastomer extending radially inward from the annular beam (102)). The thermoplastic elastomer is allowed to harden and the tire is removed from the mold.

A tire includes: a tire frame member formed in a ring shape from a frame resin material, and including a pair of bead sections, a pair of side sections, and a crown section; a ring shaped bead core that is embedded in and joined to each of the bead sections, and that is formed by a single strand, or plurality of strands, of bead cord extending in the tire circumferential direction, and covered with, and joined to, a covering resin material; and an extension portion that extends from each of the bead cores in a direction that intersects with the tire circumferential direction when viewed from a tire side face, and that is joined to the tire frame member.

The invention provides in a first aspect a non-pneumatic tire and wheel assembly comprising an outer annular ring having a ground contacting tread portion and a shear band, one or more spoke disks, wherein each spoke disk is connected to the shear band, wherein each spoke disk has at least two spokes, wherein each spoke has a first leg and a second leg, wherein a continuous strip of reinforcement is received in the first leg and the second leg.

A pneumatic tire is provided with a carcass layer and a sidewall rubber disposed on an outer side in a tire width direction of the carcass layer. Additionally, the pneumatic tire is provided with a resin coating applied on a predetermined region of a sidewall portion. Additionally, a minimum value of a wall thickness t of a rubber of the sidewall portion in the region applied with the resin coating is in a range of 0.05 mm≤t≤4.0 mm. Additionally, a thickness of the resin coating is in a range of 20 μm or more and 300 μm or less.

A manufacturing method of a tire integrated electronic device includes: a) step of positioning an electronic device mockup portion inside a first mold unit and a second mold unit; b) step of performing injection molding or compression molding by injecting unvulcanized rubber inside the first mold unit and the second mold unit such that the unvulcanized rubber encloses the electronic device mockup portion; c) step of unmolding a rubber mount unit molded to enclose the electronic device mockup portion; d) step of inserting an electronic device unit into a lower end portion of the unmolded rubber mount unit; and e) step of attaching the electronic device unit-inserted rubber mount unit to an inner liner of a tire. The rubber mount unit is molded to have an insertion hole, through which the electronic device unit is to be inserted, at a lower portion of the rubber mount unit.

A method of controlling operation of a tire filling mixing machine, by: (a) mixing a rubber/polyurethane and a catalyst in a first mixer to form a virgin polyurethane; (b) grinding cured polyurethane core bits in a grinder; (c) mixing the virgin material and the ground material in a second mixer thereby forming a mixed flatproofing material; (d) injecting the mixed flatproofing material into a tire; (e) measuring the ratio of ground material to virgin material in the mixed flatproofing material; (f) comparing the measured ratio of ground material to virgin material to a pre-stored preferred ratio of ground material to virgin material; and (g) increasing or decreasing the relative percentages of virgin material and ground material entering the second mixer by an amount that is a fraction of the difference between the measured ratio and the pre-stored preferred ratio.