Patent ID: 7475713

Claim:
A noise reduction interior member which is to be disposed in a cavity of a pneumatic tire mounted on a rim of a wheel, comprising: left and right elastic rings fitted to the rim; and an annular body attached between the elastic rings, wherein the annular body is configured such that an annular cavity portion surrounded by the noise reduction interior member and the pneumatic tire has a cross-sectional area that varies in a circumferential direction of the tire, the annular body has a cross-sectional shape which varies in a circumferential direction thereof, the annular body is formed by joining a plurality of annular body pieces into which the annular body is divided in a circumferential direction thereof, the annular body pieces have opposing leg portions, the opposing leg portions alternately protrude outwardly and inwardly from one body piece to the next adjacent body piece, and the noise reduction interior member is not adapted to support the wheel when the tire is punctured.