Provided is a heavy duty pneumatic tire (2) capable of suppressing shape changes caused by travel and improving uneven wear resistance. The tire (2) has a nominal aspect ratio of 65% or less. The tire (2) has a tread (4) and a reinforcement layer (20). The reinforcement layer (20) has: a belt layer (38) including a plurality of belt cords (44) arranged in parallel; and a cap ply (40) including a cap cord (52) wound in a spiral shape. The belt layer (38) has a plurality of belt plies (42) arranged in the radial direction. The cap ply (40) has: a full cap ply (48) having both ends (48e) facing each other across an equatorial plane; and a pair of edge cap plies (50) located radially outward of an end portion (48e) of the full cap ply (48). In the axial direction, an end portion (48e) of the full cap ply (48) is positioned outside a shoulder circumferential groove (28s) formed in the tread (4).
提供重载用充气轮胎,该轮胎(2)能够抑制由行驶引起的形状变化并实现耐偏磨损性的提高。该轮胎(2)具有65%以下的扁平比的公称。该轮胎(2)具有胎面(4)和加强层(20)。加强层(20)具有:带束层(38),其包含并列的多个带束帘线(44);以及冠带层(40),其包含卷绕成螺旋状的冠带帘线(52)。带束层(38)具有沿径向排列的多个带束帘布层(42)。冠带层(40)具有:全冠带层(48),其具有隔着赤道面相对的两端(48e);以及一对边缘冠带层(50),它们在径向上位于全冠带层(48)的端部(48e)的外侧。在轴向上,全冠带层(48)的端部(48e)位于构成在胎面(4)上的胎肩周向槽(28s)的外侧。
Heavy duty pneumatic tire
重载用充气轮胎
2022-03-15
Patent
Electronic Resource
Chinese
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |