| 摘要 |
PURPOSE: A tire curing mold is provided to improve the surface state of a tire, definitely form the outline of the tire and keep the stiffness thereof by smoothly exhausting air in tread blocks. CONSTITUTION: A tire curing mold is composed of tread block forming units, a groove forming unit formed between the tread block forming units, and a sipe forming unit(28) formed at the inside of the tread block forming unit. A plurality of air vents(50) are formed at the sipe forming unit, and are longitudinally arranged along the sipe forming unit. A plurality of notch lines(60) are formed between the air vents. Air flows through the air vents and the notch lines, simultaneously. The section of the notch line is a wedge-shape groove.
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