The present invention relates to a pneumatic tire capable of improving noise performance without compromising wet brake performance. A pneumatic tire (1) has a tread part (2). A land part (4) of the tread part (2) is provided with a plurality of sipes (8) having a width of less than 1.5 mm on the ground contact surface (4a), and a plurality of grooves (9) having a width of 1.5 mm or more on the ground contact surface (4a). The length (La) in the tire axial direction of the grooves (9) provided in the land part (4) is 15% or less of the maximum width (Ws) in the tire axial direction of the ground contact surface (4a) of the land part (4). At least one of the sipes (8) communicates with the grooves (9).
本发明的充气轮胎能够不损害湿路制动性能而提高噪声性能。该充气轮胎(1)具有胎面部(2)。在胎面部(2)的陆地部(4)设置有:其接地面(4a)上的宽度小于1.5mm的多条刀槽(8)、和接地面(4a)上的宽度为1.5mm以上的多条沟状部(9)。设置于陆地部(4)的沟状部(9)的轮胎轴向的长度(La)均为陆地部(4)的接地面(4a)的轮胎轴向的最大宽度(Ws)的15%以下。刀槽(8)的至少一条与沟状部(9)连通。
PNEUMATIC TIRE, TIRE VULCANIZATION MOLD, AND METHOD FOR PRODUCING PNEUMATIC TIRE USING TIRE VULCANIZATION MOLD
充气轮胎、轮胎硫化模具以及使用了轮胎硫化模具的充气轮胎的制造方法
2020-08-25
Patent
Electronic Resource
Chinese