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
-
申请号: US12397398申请日: 2009-03-04
-
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.