摘要:
A radial tire for motorcycle comprises a tread portion provided with a belt structure composed of two cross plies of 3x3x0.17 steel cords. The steel cord has a bending rigidity of from 10.0 to 12.0 g·cm. The elongation L100 of the steel cord at a tensile load of 100 N is 1.5 % to 2.0 %.
摘要:
In order to suppress the dimensions and mass of an aircraft tire from becoming uneven around the tire circumferential direction, an aircraft tire includes: a belt layer (14) provided further to a tire radial direction outer side than a carcass (12); and a sheet shaped belt protection member (20) that is wound in a tire circumferential direction TC between a tread section (22) and the belt layer (14), and that includes incision portions (36) incised in a tire width direction TW, with the incision portions (36) formed at uniform intervals in the tire circumferential direction TC.
摘要:
A tire is provided having a body ply that is displaced from the conventional equilibrium curve along the shoulder and upper side wall region of the tire in a manner that provides more uniform inflation growth along the crown region so as to reduce differences in rigidity between the center and shoulders of the tire, reduce load sensitivity, and/or decrease the propensity for cracking. A method for designing or constructing such a tire is also provided.
摘要:
The invention relates to a tyre comprising a crown reinforcement made up of at least two working crown layers of reinforcing elements and of at least one layer of circumferential reinforcing elements. According to the invention, the reinforcing elements of said at least two working crown layers have a diameter less than 1.1 mm and satisfy the following relations: - (Fr x 4 cos 2 α)/(P x 0.75 Pg x Ø) 1 /(P 1 x sin|α 1 |) ≥ 1.2 Fr 2 /(P 2 x sin|α 2 |).
摘要:
Provided is an airplane pneumatic tire whose durability is increased by improvement in heat build-up. The airplane pneumatic tire includes: a tread section having a plurality of circumferential grooves; a carcass toroidally extending from the tread section to a pair of bead sections through a pair of side wall sections; and a belt composed of at least one belt layer arranged on the outer side of a crown portion of the carcass, wherein, when the maximum width of the belt in the tire width direction is defined as W, a rubber having a 25% modulus at 25°C of not less than 1.2 MPa is arranged in regions of at least 0.2W from each outermost end of the belt toward the tire width direction inner side in the tread section.
摘要:
A pneumatic tire with improved noise performance while preserving the steering stability and rolling resistance includes, on radially outer side of the crown portion of a carcass, an inclined belt consisting of inclined belt layer(s) having cords inclined at an angle of 35° to 90°relative to the tire circumferential direction, a circumferential belt consisting of circumferential belt layer(s) having cords extending along the circumferential direction, and a tread on radially outer side of the circumferential belt. The circumferential belt includes a high rigidity region across the tire equator wherein the circumferential rigidity per unit width is higher at any location thereof than at any location in the remaining regions. The circumferential rigidity per unit width in the remaining regions is constant in the tire width direction or increases toward the high rigidity region.
摘要:
A pneumatic tire (10) is disclosed comprising a carcass (22) having at least one reinforced ply (14), and a reinforcing structure (400, 500, 610, 620, 630, 640, 710, 720, 730, 740, 810, 820, 830, 840, 910, 920, 930) providing a buffer for absorbing shear strain. A tread (12) is disposed radially outward of the carcass (22) and a belt structure (16) is disposed radially between the carcass (22) and the tread (12). The reinforcing structure (400, 500, 610, 620, 630, 640, 710, 720, 730, 740, 810, 820, 830, 840, 910, 920, 930) comprises at least one layer of a three dimensional fabric (420,520,613,623,633,643,713,723,733,743,813,823,833,843,913,923, 933) including or defining a frame structure of fabric and open cells (410, 510, 611, 621, 631, 641, 711, 721, 731, 741, 811, 821, 831, 841, 911, 921, 931) defined by the frame structure.