公开(公告)号：US07552754B2

公开(公告)日：2009-06-30

申请号：US11634468

申请日：2006-12-06

申请人： Mingliang Du ,  Christopher Vincent Neal, Sr. ,  Marc Borowczak ,  Thomas Sherwood Fleischman ,  Zhonghe Bo ,  Nagendra Prasad Venkata Akshantala ,  Laurent Licht ,  Jean-Marie Feller ,  Jean-Bernard Bodeux ,  Didier Winkin ,  Felix Maximo Vilchez Macuri

发明人： Mingliang Du ,  Christopher Vincent Neal, Sr. ,  Marc Borowczak ,  Thomas Sherwood Fleischman ,  Zhonghe Bo ,  Nagendra Prasad Venkata Akshantala ,  Laurent Licht ,  Jean-Marie Feller ,  Jean-Bernard Bodeux ,  Didier Winkin ,  Felix Maximo Vilchez Macuri

IPC分类号： B60C15/00

CPC分类号： B60C15/06 ,  B60C9/04 ,  B60C9/08 ,  Y10T152/10819

摘要： A pneumatic radial tire has at least one carcass reinforcing ply and a pair of opposing bead portions. Each bead portion has a bead core and a bead apex, while the carcass reinforcing ply has a main portion and two turnups, with one turnup extending from each end of the main portion and having a terminal end. In each bead portion, there is a minimum distance DMIN between the carcass main portion and the carcass turnup, as measured perpendicular to the tire equatorial plane EP. The distance DMIN is not less than 50% of the maximum bead core width WB as measured perpendicular to the equatorial plane EP. In each bead portion, radially outward of the minimum distance DMIN, a radially outermost portion of the carcass turnup extends at an angle so the radially outermost portion of the carcass turnup is divergent from the carcass main portion.

摘要翻译： 充气子午线轮胎具有至少一个胎体增强层和一对相对的胎圈部分。 每个胎圈部分具有胎圈芯和胎圈三角形，而胎体增强层具有主要部分和两个翻转，其中一个翻转部分从主要部分的每个端部延伸并具有终端。 在每个胎圈部分中，垂直于轮胎赤道面EP测量，在胎体主体部分和胎体卷起部之间存在最小距离DMIN。 距离DMIN不小于垂直于赤道平面EP测量的最大胎圈芯宽度WB的50％。 在每个胎圈部分中，在最小距离DMIN的径向外侧，胎体翻转的径向最外部分以一定角度延伸，使得胎体翻转的径向最外部分从胎体主体部分发散。