| 摘要 |
PROBLEM TO BE SOLVED: To provide a mold for a tire vulcanization bladder which prevents flashing of a crude rubber in the mold mating surface in molding of a tire vulcanization bladder, reduces the used amount of the raw material for the tire vulcanization bladder and the number of working steps and improves the production efficiency to reduce costs. ! SOLUTION: A mold 1 for a tire vulcanization bladder 10 includes an outer mold 2 consisting of an upper mold 4 and a lower mold 5, divided vertically, and a middle mold 3 arranged in the outer mold 2. In an inner wall 4a of the upper mold 4 and an inner wall 5a of the lower mold 5, there are provided convex parts 4d and 5d along the mating surfaces 4b and 5b of the upper mold 4 and the lower mold 5, respectively, in the circumferential direction. ! COPYRIGHT: (C)2014,JPO&INPIT |
