| 摘要 |
The present invention relates to a tire vulcanizing mold. An air vent is formed in a mold body (1). The air vent includes a main vent (2) and a fine vent (3; gap). In the fine vent (3), one end (31) is connected to the main vent (2), and an air inflow end (32) which is the other end is connected to the inner space of a mold. The length (L) of the air inflow end (32) connected to the inner space of the mold is more than the length (1-1.2 times) of the diameter (21) of the fine vent. A gap size (33) is 0.02-0.1 mm, and the length between one end (31) of the fine vent (3) which is a connection part with the main vent (2) and the other end (32) connected to the inner space of the mold is 1-2 mm. The present invention is able to effectively discharge air between a tire and the mold without the installation of an air vent in a tread molding part and solves problems due to the installation of the air vent. |
