| 摘要 |
PROBLEM TO BE SOLVED: To provide a belt molding mold which can mold a belt with both teeth having a short circumference. SOLUTION: The belt with both teeth 1 is molded by an inner mold 2 and an outer mold 3 arranged around the inner mold 2. A tooth channel 10 corresponding to a belt inner tooth 4 is formed in the peripheral surface 9 of the inner mold 2. A tooth channel 13 corresponding to a belt outer tooth 5 is recessed in the inner surface of the outer mold 3. Parts A and B corresponding to the tooth bottom side tips a and b of both side corner wall curves 7 and 8 of the belt outer tooth 5 are positioned on the inner surface 12 of the outer mold 3. Even when the circumference is short and the curvature of the inner surface 12 of the outer mold 3 is large, the rise of the parts A and B from a tooth bottom line 5 can be prevented. COPYRIGHT: (C)2006,JPO&NCIPI |
