Patent ID: 8915276
Filing Date: 2014-12-23
Classification: B29D,B60C,Y10T

Abstract:
1. A pneumatic tire set comprising pneumatic tires to be attached to a rim, and noise dampers made of a spongy material which are fixed to an inner surface of the tires facing a tire cavity surrounded by the rim and the pneumatic tire and which extend in the circumferential direction of tire, wherein each pneumatic tire in the pneumatic tire set has a single one of the noise dampers, each of the noise dampers having the same cross sectional shape and size, the pneumatic tires having at least two different tire sizes in a size group of pneumatic tires including a minimum volume tire such that the cavity cross sectional area S of the tire cavity on the meridian cross section including a tire shaft has a minimum value Smin and a maximum volume tire such that the cavity cross-sectional area S has a maximum value Smax, and the pneumatic tires having sizes such that the cavity sectional area ratio Smax/Smin falls within the range of greater than 1.00 to 1.95, and wherein each of the noise dampers has a volume V2 of 0.4 to 20% of a whole volume V1 of the tire cavity and each of the noise dampers has a cross-sectional area S