公开(公告)号：US20240034101A1

公开(公告)日：2024-02-01

申请号：US18548173

申请日：2021-03-02

申请人： The Yokohama Rubber Co., LTD. ,  SHANDONG XINGDA TYRE CO. LTD.

发明人： Takanori ITO ,  Hiroaki HONDA ,  Mari SHIMIZU ,  Mingquan WANG ,  Feng GAO ,  Jingwei HUANG ,  Niancun WANG ,  Yulong LI ,  Jiang WU ,  Xiquan JIA ,  Yuchao JIAO

IPC分类号： B60C15/04

CPC分类号： B60C15/04 ,  B60C2015/048 ,  B60C2015/046

摘要： In a pneumatic tire, a bead core has end portions in a tirewidth direction formed as vertical lines along a tireradial direction. A length of the vertical lines is from 20% to 30% of a core height. In two adjacent bead core layers of first, second and third layers, the radial outer layer tireincludes two or more bead cores more than the radially inner layertire, and a misalignment amount between the bead wires each at an end portion on one side in the tirewidth direction is one-half of a bead wire thickness. A side on which the misalignment amount between the first and second layer bead wires is one-half of the thickness of the bead wire is opposite in the tirewidth direction to a side on which the misalignment amount between the second and third layer bead wires is one-half of the thickness of the bead wire.