Pneumatic tire

作者：TANNO, Atsushi | KOUDA, Hiraku | MATSUDA, Jun

申请者：YOKOHAMA RUBBER CO LTD

发明人：TANNO, Atsushi | KOUDA, Hiraku | MATSUDA, Jun 年：2022,

语种：英语

公开国家：JP 国家：日本

专利申请号：JP2017232961 专利申请日期：2017-12-04

公开(公告)号：JP6988415B2 公开日期：2022-01-05

优先权号：JP2017232961 | 2017JP-0232961

分类号：B60C 15/04 20060101AFI20211220BHJP 国际主分类号：B60C 15/04 20060101AFI20211220BHJP 国际分类号：B60C-15/04 CPC分类号：B60C-2015/048 | B60C-015/024 | B60C-2015/061 | B60C-2013/007 | B60C-015/0045 | B60C-015/04 | B60C-2015/046 | B60C-015/0054 | B60C-2015/009 | B60C-15/04 | 3D13 | 3D13 | 3D13 | 3D13 | 3D13 | 3D13 | 3D13 | 3D13 | 3D13 | 3D13 | 3D13 | 3D13 | 3D13 | 3D13 | 3D13

法律状态：GRANTED

摘要： In a pneumatic tire, a turned back portion of a carcass layer contacts a body portion of the carcass layer in a cross-sectional view in a tire meridian direction to form a closed region surrounding bead cores. A rubber occupancy ratio in the closed region is in a range of 15% or less. The bead cores have a predetermined wire arrangement structure formed by arranging wire cross sections of bead wires in the cross-sectional view in the tire meridian direction. Additionally, a self-contact height (CH) of the carcass layer and a circumferential length (L) of the wire arrangement have a relationship 1.0≤CH/L≤10.0. (From US2020331302 A1)