公开(公告)号：US20150122392A1

公开(公告)日：2015-05-07

申请号：US14394565

申请日：2013-04-24

Applicant: BRIDGESTONE CORPORATION

Inventor： Kentaro Kozuki

IPC: B60C9/28

CPC classification number: B60C9/28 ,  B60C3/04 ,  B60C9/2009 ,  B60C9/22 ,  B60C9/2204 ,  B60C9/30 ,  B60C2009/1828 ,  B60C2009/2012 ,  B60C2009/2219 ,  B60C2009/2228 ,  B60C2009/2233 ,  B60C2009/2242 ,  B60C2009/2252

Abstract: A pneumatic tire with improved noise performance while preserving the steering stability and rolling resistance includes, on radially outer side of the crown portion of a carcass, an inclined belt consisting of inclined belt layer(s) having cords inclined at an angle of 35° to 90° relative to the tire circumferential direction, a circumferential belt consisting of circumferential belt layer(s) having cords extending along the circumferential direction, and a tread on radially outer side of the circumferential belt. The circumferential belt includes a high rigidity region across the tire equator wherein the circumferential rigidity per unit width is higher at any location thereof than at any location in the remaining regions. The circumferential rigidity per unit width in the remaining regions is constant in the tire width direction or increases toward the high rigidity region.

Abstract translation: 具有改进的噪音性能同时保持操纵稳定性和滚动阻力的充气轮胎包括在胎体的胎冠部分的径向外侧上的倾斜带，该倾斜带由倾斜带束层组成，该带层倾斜成35°角至 由周向带层构成的周向带，该周向带层具有沿圆周方向延伸的帘线和在周向带径向外侧的胎面。 周向皮带包括跨越轮胎赤道的高刚性区域，其中每个单位宽度的周向刚度在其任何位置比在其余区域中的任何位置处更高。 剩余区域中的每单位宽度的周向刚性在轮胎宽度方向上是恒定的，或者朝向高刚性区域增加。