SECTIONAL TIRE MOLDING DIE

摘要

PROBLEM TO BE SOLVED: To reduce cost for a molding die and shorten its manufacturing time in a sectional tire molding die with plural sectors. SOLUTION: The pattern elements of a tread pattern coming across a split position X of a sector 3 are set to be of a single type when the tread pattern is formed of three different types of pattern element with a varying pitch, and two different types or less when the tread pattern is formed of five different types of pattern element with a varying pitch and three different types or less when the tread pattern is formed of seven different types of pattern element with a varying pitch. This operation is achieved by arranging a pattern element molding part A (B, C) on the tread part molding face 3A of the sector 3.