Venting apparatus for a tire vulcanizing mold
The present invention relates to an improved venting apparatus installed in a tire vulcanizing mold. In the venting apparatus, an inner diameter of a center through hole formed in the casing is gradually increased in an upper direction and is gradually decreased in a lower direction for thereby form...
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| Main Authors | , , |
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| Format | Patent |
| Language | English |
| Published |
02.08.2005
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| Online Access | Get full text |
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| Summary: | The present invention relates to an improved venting apparatus installed in a tire vulcanizing mold. In the venting apparatus, an inner diameter of a center through hole formed in the casing is gradually increased in an upper direction and is gradually decreased in a lower direction for thereby forming a tapered shape. The angles of the slant surfaces of the valve head point-contacting with an upper corner portion of the center through hole are different, so that a discharging capability of air is enhanced, and it is possible to prevent a formation of a vent rubber in a finished tire which vent rubber is formed when a rubber flows into a venting apparatus. In addition, it is possible to prevent an error operation during vulcanization and to extend a life span of a venting apparatus. The maintenance is easier. |
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