Abstract: A pneumatic tire in which a cavity resonance sound is reduced while punctures are easily repaired with a puncture sealant. The pneumatic tire has a fibrous region where short fibers are bonded onto an inner surface of the tire. A circumferential fiberless region where short fibers are not bonded onto the inner surface of the tire extends circumferentially between both ends of a tread ground contact area.

Abstract: The present invention provides a fiber coating device for tires, for coating an inner surface of a tire with fibers, comprising: a tire support means for supporting a tire; a fiber supply means including a fiber jetting outlet and adapted to spray fibers from the fiber jetting outlet onto an inner surface of the tire supported by the tire support means; and a fiber charging means for charging the fibers sprayed from the fiber jetting outlet, wherein the fiber jetting outlet of the fiber supply means and the fiber charging means are disposed in a space defined by the inner surfaces of the tire and a pair of imaginary disc-shaped faces of which circumferential peripheries correspond to inner circumferential peripheries of respective bead portions of the tire when the tire is supported by the tire support means.

Abstract: A pneumatic tire in which a cavity resonance sound is reduced while punctures are easily repaired with a puncture sealant. The pneumatic tire has a fibrous region where short fibers are bonded onto an inner surface of the tire. A circumferential fiberless region where short fibers are not bonded onto the inner surface of the tire extends circumferentially between both ends of a tread ground contact area.

Abstract: An object of the present invention is to provide a pneumatic tire which can be easily manufactured and can reliably reduce cavity resonance sound.

Abstract: A pneumatic tire with short fibers fixed to the inner surface of the tire with improved peel resistance, and a method of producing such a pneumatic tire. The pneumatic tire has a carcass toroidally extending from a tread portion along a pair of sidewall portions to a pair of bead portions, and bead fillers provided radially outwardly of bead cores embedded in the bead portions, including flocking areas in which many short fibers are fixed to at least part of an inner surface of the pneumatic tire with an adhesive. The flocking areas are positioned such that their tire radial direction inner ends are positioned inwardly in the tire radial direction as compared to the tire radial direction outer ends of the bead fillers and are spaced a given distance outward in the tire radial direction apart from bead toes.

Abstract: A tire 100 comprises one pair of bead cores 110 and a carcass layer 120 having a toroidal shape that extends between the one pair of bead cores 110. The carcass layer 120 is folded back to an outside in a tire width direction at the bead cores 110. With respect to an end portion 121 of the carcass layer 120 folded back at the bead cores 110, a plurality of wall members 200 are provided at positions in the tire width direction. The plurality of wall members 200 are provided so as to be spaced from one another along a tire circumferential direction.

Abstract: The present invention aims to provide a method of designing a resonator more simply by deriving a non-transcendental model formula, and to provide a pneumatic tire having the resonator designed by this method.

Abstract: There is proposed a tire realizing the simplification of a bead portion structure without sacrificing a bead portion durability and a steering stability. A tire comprises a carcass toroidally extending between a pair of bead cores embedded in respective bead portions, in which the carcass is combined with the bead core through such a pathway that the carcass passes inside a thickness center of the bead portion in an axial direction of the tire and reaches to a face of the bead core inside the tire and then passes through the bead core from an inside of the tire toward an outside thereof and terminates in contact with a face of the bead core at a side of a bead base.

Abstract: A pneumatic tire comprising a radial carcass (5) of at least one carcass ply including a main body portion (3a) and a turnup portion (3b), and a reinforcing member (7) including at least two reinforcing layers. The at least two reinforcing layers (6a, 6b) are cross reinforcing layers (21) arranged so as to envelop at least the turnup portion of the radial carcass and cross cords of these layers with each other. Outer ends of the cross reinforcing layers, located outward from the turnup portion (3b) of the radial carcass in the widthwise direction of the tire, are outward from an outer end (13) of the turnup portion of the radial carcass in the radial direction of the tire. A crossing angle ? between cords of adjacent cross reinforcing layers with respect to a circumferential direction (15) of the tire is more than 50° but less than 1300°.

Abstract: A pneumatic tire including a radial carcass (5) of at least one carcass ply including a main body portion (3a) and a turnup portion (3b), and a reinforcing member (7) including at least two reinforcing layers. The at least two reinforcing layers (6a, 6b) are cross reinforcing layers (21) arranged so as to envelop at least the turnup portion of the radial carcass and cross cords of these layers with each other. Outer ends of the cross reinforcing layers, located outward from the turnup portion (3b) of the radial carcass in the widthwise direction of the tire, are outward from an outer end (13) of the turnup portion of the radial carcass in the radial direction of the tire. A crossing angle ? between cords of adjacent cross reinforcing layers with respect to a circumferential direction (15) of the tire is more than 50° but less than 130°.

Abstract: A pneumatic tire comprising a radial carcass (5) of at least one carcass ply including a main body portion (3a) and a turnup portion (3b), and a reinforcing member (7) including at least two reinforcing layers. The at least two reinforcing layers (6a, 6b) are cross reinforcing layers (21) arranged so as to envelop at least the turnup portion of the radial carcass and cross cords of these layers with each other. Outer ends of the cross reinforcing layers, located outward from the turnup portion (3b) of the radial carcass in the widthwise direction of the tire, are outward from an outer end (13) of the turnup portion of the radial carcass in the radial direction of the tire. A crossing angle a between cords of adjacent cross reinforcing layers with respect to a circumferential direction (15) of the tire is more than 50° but less than 130°.

Abstract: A first aspect of the invention is a pneumatic tire comprising a radial carcass 5 of at least one carcass ply comprised of a main body portion 3a and a turnup portion 3b, and a reinforcing member 7 comprised of at least two reinforcing layers, in which at least two reinforcing layers 6a, 6b among reinforcing layers 6a, 6b, 6c constituting the reinforcing member 7 are cross reinforcing layers 21 arranged so as to envelop at least the turnup portion of the radial carcass 5 and cross cords of these layers with each other, and outer ends 14a, 14b of the reinforcing layers 6a, 6b constituting the cross reinforcing layers 21 and located outward from the turnup portion 3b of the radial carcass 5 in the widthwise direction of the tire are outward from an outer end 13 of the turnup portion 3b of the radial carcass 5 in the radial direction of the tire, and the cords constituting each of the reinforcing layers 6a, 6b, 6c are cords having given properties, and a crossing angle a between cords of adjacent reinforcing lay