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    • 37. 发明授权
    • Pneumatic tire having a single carcass ply reinforced with metallic
cords, a high ending ply, turnup and locked bead construction
    • 具有用金属帘线加强的单个胎体帘布层的气动轮胎,高端部帘布层,翻转和锁定的胎圈结构
    • US5779829A
    • 1998-07-14
    • US518777
    • 1995-08-24
    • Amit PrakashDonald Woodrow GilliamGary Edwin Tubb
    • Amit PrakashDonald Woodrow GilliamGary Edwin Tubb
    • B60C9/00B60C9/08B60C9/02B60C9/04B60C15/00B60C15/04
    • B60C9/0007B60C15/0054B60C9/08B60C2015/0614Y10S57/902Y10T152/10819Y10T152/10828Y10T152/10837Y10T152/10855
    • The pneumatic tire has a single carcass ply reinforced with parallel metallic cords, each cord composed of at least one filament having a tensile strength of at least (-2000.times.D+4400 MPa).times.95%, where D is the filament diameter in millimeters. The turnup portion of the single carcass ply 12 in the bead portion of a pneumatic tire is interposed between the bead core 11 and a toe guard 18, and the radially outer edge of each turnup portion being in contact with the main portion of the carcass ply and extending to an end point 0.5 to 4.0 inches (12.7 to 101.6 mm) radially outward of the bead core. The toe guard 18 has a first and second end and each end is disposed directly adjacent to the carcass ply. The first end 18a of the toe guard is located on the axially inner side of the main portion of the carcass ply at a location about 0.4 to 3.5 inches (10 to 89 mm) radially outward of the bead core and the second end 18b is located at a point ranging from substantially the axially outermost point of the bead core 11 to a location about 3.5 inches (89 mm) radially outward of the bead core. The first end 18a and second end 18b of the toe guard is a shorter distance from the bead core than the end point 12a of the turnup portion of the carcass ply.
    • 充气轮胎具有用平行的金属帘线增强的单个胎体帘布层,每个帘线由至少一根抗拉强度至少为(-2000×D + 4400MPa)×95%的长丝组成,其中D是以毫米计的丝直径。 充气轮胎的胎圈部分中的单个胎体帘布层12的翻转部分插入在胎圈芯11和脚趾保护件18之间,并且每个翻转部分的径向外边缘与胎体帘布层的主要部分接触 并且延伸到胎圈芯的径向外侧的0.5至4.0英寸(12.7至101.6mm)的终点。 脚趾保护罩18具有第一和第二端,并且每个端部直接邻近胎体帘布层布置。 脚趾护罩的第一端18a位于胎体帘布层主体部分的轴向内侧,位于胎圈芯径向外侧约0.4至3.5英寸(10至89mm)的位置,第二端18b位于 在从胎圈芯11的大致轴向最外侧的位置到径向向外的胎圈芯的大约3.5英寸(89mm)的位置处。 脚趾保护件的第一端18a和第二端18b距离胎圈芯的距离比胎体帘布层的翻转部分的端点12a短。