Abstract: A pneumatic tire according to the present disclosure includes a sound absorber disposed on the tire inner surface. The sound absorber is a sponge material, and in a reference state, the sponge material is rectangular in a cross-section in the tire width direction, the ratio t/w of the thickness t of the sponge material to the width w of the sponge material in the tire width direction is from 0.4 to 0.55, the thickness t of the sponge material is 30 mm or less, the volume ratio of the sponge material is from 5% to 8%, the elongation at break of the sponge material is from 200% to 250%, and the hardness of the sponge material is from 80 N to 140 N.

Abstract: A mold container device includes a plurality of segments, an outer ring, and a conversion mechanism. The conversion mechanism connects the outer ring and the segment. The conversion mechanism moves the segment in a radial direction between a first position and a second position outside the first position in the radial direction, according to displacement of the outer ring in the direction of the axis O. The conversion mechanism further swings one of a lower edge portion and an upper edge portion of the segment in the radial direction, according to displacement of the outer ring in the direction of the axis O.