| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire mold and a rubber stop valve suppressing the occurrence of bite-in of rubber between a valve body and a valve seat, and suppressing the occurrence of rubber defects of a tire.SOLUTION: A tire mold includes a rubber stop valve arranged in a vent hole of a mold. The rubber stop valve includes a valve seat having an inflow hole into which gas in a molding chamber inflows, a valve body contacting the valve seat so as to cover the inflow hole in order to suppress the invasion of rubber, an energization body bringing the valve body into contact with the valve seat under pressure, and a circulation part circulating gas inflowing from the inflow hole toward a downstream side of the vent hole. At least one of the valve seat and the valve body includes at least one of a recess and a projection so as to form part of the circulation part between the valve seat and the valve body.SELECTED DRAWING: Figure 5 |
