发明名称 TIRE VULCANIZING MOLD
摘要 PROBLEM TO BE SOLVED: To provide a tire vulcanizing mold wherein air in a tire vulcanizing mold can be discharged while achieving more spew reduction on an outer surface of a tire.SOLUTION: A tire vulcanizing mold 1 includes a molding surface 2 for molding an outer surface Ts of a tire T, one end 20a opens in the molding surface 2, the other end 20b has at least one vent hole 20 communicating with an outside of the mold, and the vent hole 20 inclines at an angle &thetas; of &ge;60° and <90° with respect to a normal line N set on the molding surface 2. Thus, a rubber pressurized along a normal line direction of the molding surface 2 receives a resistance in an inner peripheral surface of the vent hole inclining at a large angle to the normal line direction, and a propelling force in a direction along an inside of the vent hole is decreased. Accordingly, the rubber is less intruded into the inside of the vent hole 20, and more spew reduction is achieved on the outer surface Ts of the tire T.
申请公布号 JP2013244732(A) 申请公布日期 2013.12.09
申请号 JP20120122252 申请日期 2012.05.29
申请人 SUMITOMO RUBBER IND LTD 发明人 OBARA KEI
分类号 B29C33/02;B29C33/10;B29C35/02;B29L30/00 主分类号 B29C33/02
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