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AssigneesThe Yokohama Rubber Co., Ltd., Mitsubishi Jidosha Kogyo Kabushiki Kaisha
InventorsAtsushi Tanno, Hiroshi Yamauchi, Yasuji Akiyoshi
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Disclosed is a pneumatic tire enabling to even a weight balance thereof in a tire circumferential direction in realizing reduction of cavity resonance noise by using an annular object having cross-sectional areas which vary depending on locations in the tire circumferential direction. The pneumatic tire of the present invention is one in which an annular object having cross-sectional areas which vary depending on locations in the tire circumferential direction is mounted on an inner surface of a tread portion. In the pneumatic tire, the annular object is formed by partially applying compression forming to a porous material member having a density of 5 to 70 kg/m3 and having an uniform cross-sectional shape in the tire circumferential direction.
A pneumatic tire, in which an annular object having cross-sectional areas which vary depending on locations in a circumferential direction of the tire is mounted on an inner surface of a tread portion, wherein the annular object is formed by partially applying compression forming to a porous material member, which has a density of 5 to 70 kg/m3, and which has a uniform cross-sectional shape in the tire circumferential direction.
Dependencies are inferred from the claim text.