-
公开(公告)号：US20230302851A1
公开(公告)日：2023-09-28
申请号：US18126227
申请日：2023-03-24
发明人： Manabu INOUE
IPC分类号： B60C9/00
CPC分类号： B60C9/0007 , B60C2009/0078 , B60C9/18
摘要： Provided is a motorcycle tire, that provides excellent steering stability while using steel cords as a belt layer material, which comprises a carcass extending from a tread portion to a bead core of a bead portion via a sidewall portion, and a belt layer arranged outside the carcass and inside the tread portion in the tire radial direction, wherein the belt layer is a steel belt layer having steel cords; the steel cord is a steel cord having an m×n configuration in which n strands, formed by twisting m steel filaments, are twisted together in the same direction as the steel filaments, and the m is 1 or more and 3 or less and n is 2 or more and 6 or less; the diameter of the steel filament is 0.15 mm or more and 0.25 mm or less; the rubber composition forming the tread portion is a rubber composition having a complex elastic modulus E* (MPa) of 5.0 MPa or more; and the product (S×E*) of the total cross-sectional area S(mm2) of the steel filaments in the cross section of the steel cord and the complex elastic modulus E* (MPa) is 2.00 or less.
-
公开(公告)号：US20220324258A1
公开(公告)日：2022-10-13
申请号：US17704479
申请日：2022-03-25
发明人： Manabu INOUE , Noboru OKABE
摘要： A pneumatic tire includes a ply having a plurality of cords each having an average cord diameter D, and a sidewall rubber having a loss tangent tan δ The plurality of cords each includes a plurality of filaments twisted together, the plurality of filaments each having an outer diameter d. The plurality of cords each has a ratio D/d of the average cord diameter D to the outer diameter d being equal to or more than 28. The ratio D/d and the loss tangent tan δ of the sidewall rubber satisfy the following formula; (tan δ)/(D/d)*1000≤5.5.
-
搜索结果
2 条记录 (耗时 0.016 秒)
