B60C5/00

Pneumatic tire and method for manufacturing same

Provided are a pneumatic tire where a band-shaped surface fastener extending in a tire circumferential direction is mounted on a tire inner surface, a cut portion composed of a group of a plurality of notches extending in a width direction of this surface fastener without traversing this surface fastener is formed in this surface fastener repetitively along the tire circumferential direction, the surface fastener is divided into a plurality of components by these notches, and the surface fastener is disposed on the tire inner surface in a state where the cut portion is stretched so the components are continuous in the tire circumferential direction.

Tire

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.

Pneumatic tire

A ratio between the total width (SW) and outer diameter (OD) of a pneumatic tire, which has an asymmetrical pattern formed by grooves formed on a tread part, satisfies SW/OD≤0.3. Given a ground contact width (CW) in a ground contact region in the tread part, a groove area ratio (GR), and a groove area ratio (GRi) of a tire inner side region (Ai), which spans from a tire equator line (CL) to the vehicle side in the ground contact region, and a groove area ratio (GRo) of a tire outer side region (Ao), which spans from the tire equator line to the opposite side of the vehicle side in the ground contact region, the ground contact region is formed to satisfy 0.75≤CW/SW≤0.9, 10≤GR≤25%, and GRi<GRo.

Pneumatic tire

A ratio between the total width (SW) and outer diameter (OD) of a pneumatic tire, which has an asymmetrical pattern formed by grooves formed on a tread part, satisfies SW/OD≤0.3. Given a ground contact width (CW) in a ground contact region in the tread part, a groove area ratio (GR), and a groove area ratio (GRi) of a tire inner side region (Ai), which spans from a tire equator line (CL) to the vehicle side in the ground contact region, and a groove area ratio (GRo) of a tire outer side region (Ao), which spans from the tire equator line to the opposite side of the vehicle side in the ground contact region, the ground contact region is formed to satisfy 0.75≤CW/SW≤0.9, 10≤GR≤25%, and GRi<GRo.

Pneumatic tire
11001100 · 2021-05-11 · ·

Provided is a pneumatic tire, which includes a tread portion having an annular shape and extending in a tire circumferential direction, a pair of sidewall portions disposed on both sides of the tread portion, a pair of bead portions disposed on inner sides of the pair of sidewall portions in a tire radial direction, and a band-like sound absorbing member bonded to an inner surface of the tread portion along the tire circumferential direction. The band-like sound absorbing member includes a plurality of cuts in an outer circumferential surface of the band-like sound absorbing member. At least one end of each of the cuts terminates within the band-like sound absorbing member.

Pneumatic tire
11001100 · 2021-05-11 · ·

Provided is a pneumatic tire, which includes a tread portion having an annular shape and extending in a tire circumferential direction, a pair of sidewall portions disposed on both sides of the tread portion, a pair of bead portions disposed on inner sides of the pair of sidewall portions in a tire radial direction, and a band-like sound absorbing member bonded to an inner surface of the tread portion along the tire circumferential direction. The band-like sound absorbing member includes a plurality of cuts in an outer circumferential surface of the band-like sound absorbing member. At least one end of each of the cuts terminates within the band-like sound absorbing member.

Pneumatic tire
11001105 · 2021-05-11 · ·

A pneumatic tire includes a carcass layer mounted between a pair of bead portions; a belt layer disposed on an outer circumferential side of the carcass layer; and a band-like sound absorbing member extending in a tire circumferential direction adhered to a region of a tire inner surface corresponding to a tread portion, the band-like sound absorbing member being locally disposed at a position distanced from a central region of the region corresponding to the tread portion, and an outer circumferential surface of the band-like sound absorbing member including cuts extending in the tire circumferential direction.

Pneumatic tire
11001105 · 2021-05-11 · ·

A pneumatic tire includes a carcass layer mounted between a pair of bead portions; a belt layer disposed on an outer circumferential side of the carcass layer; and a band-like sound absorbing member extending in a tire circumferential direction adhered to a region of a tire inner surface corresponding to a tread portion, the band-like sound absorbing member being locally disposed at a position distanced from a central region of the region corresponding to the tread portion, and an outer circumferential surface of the band-like sound absorbing member including cuts extending in the tire circumferential direction.

Pneumatic Tire
20210139675 · 2021-05-13 ·

In a pneumatic tire, a tread portion comprises longitudinal and/or lateral grooves; a groove area ratio of a vehicle inner side region of the tread portion ranges from 30% to 39%; a difference between the groove area ratio Sin and a groove area ratio Sout ranges from 6-14%; and the rubber composition comprises a diene rubber comprising from 10-30 parts by mass of natural rubber and from 70-90 parts by mass of a solution polymerized styrene-butadiene rubber and/or an emulsion polymerized styrene-butadiene rubber per 100 parts by mass of the diene rubber, from 80-150 parts by mass of silica per 100 parts by mass of the diene rubber, from 0.5-10 parts by mass of a cyclic polysulfide per 100 parts by mass of the diene rubber, and from 3-10 mass % of an alkyltriethoxysilane having an alkyl group having from 3-20 carbons relative to an amount of the silica.

TIRE

Provided is a tire provided with a mark capable of reducing the air resistance during tire rotation while maintaining good visibility. A tire is provided with a mark on a tire side portion. The mark includes a first mark located on an outer side in a tire radial direction, and a second mark located inward of the first mark in the tire radial direction. Each of the first mark and the second mark includes a recess that is recessed from a side profile surface of the tire side portion. A depth of the recess of the first mark from the side profile surface is smaller than a depth of the recess of the second mark from the side profile surface.