pneumatic tire reduced cavity resonance noise using noise absorber and noise insulator membrane

摘要

The present invention relates to a pneumatic tire having reduced resonance noise (Cavity Resonance Noise), in the pneumatic tire comprising a tread portion 100 and a side wall portion 200 and the bead portion 300, the air A sound absorbing material 350 attached to the inner surface of the tread portion 100 inside the mouth tire; And a sound insulating film 400 fixedly supported by the sound absorbing material 350 so as to internalize the cross section of the tire together with the sound absorbing material 350 inside the pneumatic tire. to provide.