-
公开(公告)号：EP4063145A1
公开(公告)日：2022-09-28
申请号：EP22160067.9
申请日：2022-03-03
发明人： TOSHIMA, You , NOBUKUNI, Shingo
摘要： Provided is a pneumatic tire enabling improvement of side cut resistance and suppression of increase in mass. A pneumatic tire 1 includes: a tread portion 2; a pair of sidewall portions 3; a pair of bead portions 4 having respective bead cores 5 embedded therein; and a toroidal carcass 6 disposed between the pair of bead portions 4. The carcass 6 includes a first ply 11 extending on and between the pair of bead portions 4, and a second ply 12 disposed, in the tread portion 2, outward of the first ply 11 in a tire radial direction and extending on and between the pair of bead portions 4. The first ply 11 is formed as a layer of first cords. The second ply 12 is formed as a layer of second cords. A thickness of each second cord is 1.1 to 2.0 times a thickness of each first cord.
-
公开(公告)号：EP4190585A1
公开(公告)日：2023-06-07
申请号：EP21850567.5
申请日：2021-07-20
发明人： OSHIMO, Masaki , TOSHIMA, You
摘要： A tire comprising a tread composed of a rubber composition comprising a rubber component, wherein the tread has at least one circumferential main groove extending continuously in a tire circumferential direction, wherein, at a bending part in a plurality, the circumferential main groove bends and extends in the tire circumferential direction such that a center line of the circumferential main groove deviates in a tire width direction or an extending direction of the center line of the circumferential main groove changes preceding and following the bending part, and wherein the rubber composition has tan δ at 20°C (20°C tan δ) of 0.30 or less, and breaking strength TB (MPa) at 175°C and elongation at break EB (%) at 175°C satisfying a relational expression of TB × EB/2 ≥ 600.
-
搜索结果
2 条记录 (耗时 0.008 秒)
