Patent ID: 9315076
Filing Date: 2016-04-19
CPC Classification: B60C,Y10T

Claim Text:
1. An assembly of a pneumatic tire and a rim, comprising: a rim; a pneumatic tire mounted on the rim; a tire cavity formed between the pneumatic tire and the rim; and a noise suppressing body disposed inside the tire cavity and extending in a circumferential direction of the tire, wherein the noise suppressing body comprises (i) a first sound absorbing material layer spaced from an inner surface of a tread part of the pneumatic tire with a cavity therebetween, and (ii) a second sound absorbing material layer disposed at the rim side of the first sound absorbing material layer and having lower air permeability than the first sound absorbing material layer, and wherein the noise suppressing body has a gas layer between the first sound absorbing material layer and the second sound absorbing material layer.