Abstract: A tire configured from joining together plural tire frame members formed from a thermoplastic material in which sufficient strength of the joint portion is secured. Two tire halves 17A formed from a first thermoplastic material are supported by a tire supporting section 40 so as to be aligned with each other and abutting, while rotating this configuration melted welding thermoplastic material 43 is extruded from a nozzle 46 towards the joining location, and the welding thermoplastic material 43 is pressed by a flattening roller 48. The one tire half 17A and the other tire half 17A are thereby welded together with the welding thermoplastic material 43. Since the tire halves 17A themselves are not melted, deterioration of the thermoplastic material forming the tire halves 17A is suppressed, and sufficient strength of the joint portion is secured.

Abstract: A tire formed from a resin material is provided having a high stress withstanding ability and capable of maintaining a high internal pressure. By configuring the side sections 14 with plural circular arc curve faced portions 32 having curvature in the circumferential direction formed successively along the circumferential direction the stress acting on the side sections 14 can be distributed at a radial direction stress and a circumferential direction stress. Accordingly, the radial direction stress can be reduced further than in a conventional profile not provided with any circular arc curve faced portions along the circumferential direction, enabling sufficient pressure withstanding ability (internal pressure) to be secured for a pneumatic tire for use on a vehicle even though a thermoplastic material with weaker stress than that of rubber is employed for the side sections 14.

Abstract: An object is to both provide a tire that is formed from a resin material, and in particular a thermoplastic material, and to also suppresses incorporation of air, raising durability. A tire 10 includes: a ring shaped tire case 23 formed from a resin material; a reinforcement cord 26 having a higher rigidity that that of the resin material, wound in a spiral shape on the outer peripheral section of the tire case 23 and having at least a portion of the reinforcement cord 26 embedded in and making close contact with the outer peripheral section of the tire case 23 when viewed in a cross-section along the axial direction of the tire case 23; and a tread 30 provided on the radial direction outside of a reinforcement cord layer 28 formed by the reinforcement cord 26. Accordingly air can be suppressed from being incorporated and durability can be raised.

Abstract: An object of the invention is to provide an elastomer composition containing a substance as an alternative raw material for an elastomer component, which is low in environmental load and capable of being produced at low cost, and a tire using the elastomer composition. Here, the elastomer composition and the tire of the invention are characterized in containing residuum generated in a fermentative treatment of an organic matter in an elastomer component. In addition, as the above fermentative treatment, an anaerobic fermentative treatment or an aerobic fermentative treatment can be used.

Abstract: Present invention provides a safety tire which could increase the running distance in the run-flat state by adequately configuring a diaphragm. The safety tire has an inflatable annular or hollow toroidal diaphragm which fractionates a tire cavity to an outer chamber and an inner chamber, the diaphragm having a communicating part communicating the outer chamber with the inner chamber, when the tire and the diaphragm is attached onto a rim and the inner and outer chamber is filled with a first internal-pressure, and the communication part being closed when the internal-pressure of the outer chamber drops from the first internal-pressure beyond a second internal-pressure.

Abstract: To provide a wheel for the celestial running vehicle, which enables the celestial running vehicle to sufficiently exhibit its desired running performance by maintaining a sufficient ground contact length, as well as to reduce the wheel maximum width and the number of the sliding portions.

Abstract: The present invention provides a reinforced lightweight air bladder for a safety tire which can effectively suppress a radial growth under the normal running condition even if it is used for a long tire and, on the other hand, to suppress an occurrence of a crack in a tube under the runflat running condition, thereby exhibiting a superior durability. A hollow toric reinforced air bladder 1 is to be accommodated in a tire 2 to form a safety tire. The reinforced air bladder 1 is filled with the air at an internal pressure determined in relation to a given air pressure of the tire 2 to form a cavity S1 in tire 2. When the internal pressure of the cavity S1 of the tire 2 is dropped due to getting punctured or the like, the reinforced air bladder 2 is radially expanded to take over load support from the tire 2. The reinforced air bladder 1 comprises an air-impermeable tube 6 and a reinforcing hoop layer 7 surrounding entirely an outer circumference of a crown portion of the tube 6.

Abstract: A pneumatic tire (10) according to the present invention includes a first side reinforcement layer (110) and a second side reinforcement layer (120). The first side reinforcement layer (110) has a plurality of reinforcement cords (110s), and the second side reinforcement layer (120) has a plurality of reinforcement cords (120s) each crossing the reinforcement cords (110s). Additionally, an inclination angle of each of the reinforcement cords (110s) and the reinforcement cords (120s) with respect to a circumferential line extending in a circumferential direction of the pneumatic tire (10) is 5 to 30 degrees. According to the pneumatic tire (10), high speed durability thereof can be further enhanced without reducing wear life of a shoulder portion thereof.

Abstract: A pneumatic tire (10) according to the present invention includes a first side reinforcement layer (110) and a second side reinforcement layer (120). The first side reinforcement layer (110) has a plurality of reinforcement cords (110s), and the second side reinforcement layer (120) has a plurality of reinforcement cords (120s) each crossing the reinforcement cords (110s). Additionally, an inclination angle of each of the reinforcement cords (110s) and the reinforcement cords (120s) with respect to a circumferential line extending in a circumferential direction of the pneumatic tire (10) is 5 to 30 degrees. According to the pneumatic tire (10), high speed durability thereof can be further enhanced without reducing wear life of a shoulder portion thereof.

Abstract: The present invention provides a reinforced lightweight air bladder for a safety tire which can effectively suppress a radial growth under the normal running condition even if it is used for a long tire and, on the other hand, to suppress an occurrence of a crack in a tube under the runflat running condition, thereby exhibiting a superior durability. A hollow toric reinforced air bladder 1 is to be accommodated in a tire 2 to form a safety tire. The reinforced air bladder 1 is filled with the air at an internal pressure determined in relation to a given air pressure of the tire 2 to form a cavity S1 in tire 2. When the internal pressure of the cavity S1 of the tire 2 is dropped due to getting punctured or the like, the reinforced air bladder 2 is radially expanded to take over load support from the tire 2. The reinforced air bladder 1 comprises an air-impermeable tube 6 and a reinforcing hoop layer 7 surrounding entirely an outer circumference of a crown portion of the tube 6.