| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire vulcanizing bladder capable of preventing the generation of tire trouble caused by the non-uniform contact of the bladder and an unvulcanized tire or the undesired deformation of the unvulcanized tire to manufacture a uniform tire. SOLUTION: The bladder body 4 is formed from a rigid rubbery elastomer, wherein the wall thickness t<SB>1</SB>of the distance La from the clamp part of the bladder body 4 to the part coming into contact with a tire bead Wa is 3-10 mm, as shown by Fig 2 and integrally formed by setting the wall thickness t<SB>2</SB>of the distance Lb from a tire side part Wb to the part coming into contact with a crown part Wc to 0.5-1 mm. The boundary range Sz continuously transferred from the thick part with the wall thickness t<SB>1</SB>of the bladder body 4 to the thin part with the wall thickness t<SB>2</SB>is set to 5-20 mm. COPYRIGHT: (C)2003,JPO |
