| 摘要 |
PROBLEM TO BE SOLVED: To provide a device and a method of vulcanizing a pneumatic tire capable of reducing energy in the expansion of a vulcanizing bladder while suppressing the elongation of a vulcanizing time.SOLUTION: A green tire G is expanded by injecting a heating and pressurizing medium S into the green tire G arranged in a closed mold 9 while arranging a vulcanizing bladder 2, and when heating and vulcanizing the green tire G while being pressed to the mold 9, an expansion and contraction body 11 into which a non-heated gas A is injected or discharged is arranged in the vulcanizing bladder 2. When the vulcanizing bladder 2 is expanded, the expansion and contraction body is expanded by injecting the non-heated gas A into the expansion and contraction body 11, and thereby making pressure in the vulcanizing bladder 2 high. |
