发明授权
US07850439B2 Vent plug for a tire vulcanization mold, tire vulcanization mold and method for manufacturing a pneumatic tire using the tire vulcanization mold
失效
用于轮胎硫化模具的排气塞，轮胎硫化模具和使用轮胎硫化模具制造充气轮胎的方法
- 专利标题： Vent plug for a tire vulcanization mold, tire vulcanization mold and method for manufacturing a pneumatic tire using the tire vulcanization mold
- 专利标题（中）： 用于轮胎硫化模具的排气塞，轮胎硫化模具和使用轮胎硫化模具制造充气轮胎的方法
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申请号： US12397398申请日： 2009-03-04
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公开(公告)号： US07850439B2公开(公告)日： 2010-12-14
- 发明人: Hiroyuki Furutani
- 申请人： Hiroyuki Furutani
- 申请人地址： JP Osaka
- 专利权人： Toyo Tire & Rubber Co., Ltd.
- 当前专利权人： Toyo Tire & Rubber Co., Ltd.
- 当前专利权人地址： JP Osaka
- 代理机构： Fish & Richardson P.C.
- 优先权： JP2008-110478 20080421
- 主分类号： B29C33/10
- IPC分类号： B29C33/10 ; B29D30/06
摘要：
The invention relates to a vent plug for a tire vulcanization mold used for a vent hole of the mold, the tire vulcanization mold, and a manufacturing method for the tire using the mold. The vent plug includes a plug holder with a hollow ventilation portion and a plug head within the ventilation portion. The plug holder includes a tapered seat portion, an inside diameter of which becomes smaller toward a mold rear side, and a cylinder portion located at the mold rear side of the seat portion. The plug head includes a tapered head portion, an outer diameter of which becomes smaller toward the mold rear side, a base body portion located at the mold rear side of the head portion, and a slit portion communicating with the ventilation portion from an upper end face of the plug head.