| 摘要 |
The present invention relates to a bead profile structure for improving the shape of a tire bead and the shape of a rim checking line, and more specifically, to a bead profile structure in which an edge profile between a lower sidewall arc (LSR) and a bead arc (Fr) is divided into three sections and sets multi-curvature. The bead profile structure according to the present invention prevents the stress concentration of a rim cushion unit and a rim flange unit by minimizing a contact area between the rim cushion unit and the rim flange unit, prevents a slip between a tire and the rim flange unit, and improves the wear resistance and noise/vibration performance of the rim flange unit. |
