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 Ahn, Myeong Hun, Jang, In Seog, Kim, Yong Sub
Format Patent
LanguageEnglish
Published 02.08.2005
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Abstract 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.
AbstractList 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.
Author Kim, Yong Sub
Ahn, Myeong Hun
Jang, In Seog
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References Green (5939101) 19990800
Iwai et al. (6036899) 20000300
(2339163) 20000100
Hodler (3885618) 19750500
(195 43 276) 19970200
Hunter et al. (5997783) 19991200
Carter (4492554) 19850100
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Snippet 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...
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Title Venting apparatus for a tire vulcanizing mold
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