| 摘要 |
A tire noise reduction device including a noise absorbing member made from a porous material that is formed into a band, the band being disposed along a tire circumferential direction on an inner surface of a tread portion of a pneumatic tire, wherein the noise absorbing member is wound so as to be laminated with two layers or more on at least a part of the tire circumferential direction to form a circular body, a crossing section where an inside layer and an outside layer of the noise absorbing member interchange is provided in at least one location on a periphery of the circular body, and the ends of the longitudinal direction of the noise absorbing member are disposed inward of the outermost layer of the noise absorbing member.
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