发明名称 |
HOT FORMING SYSTEM TO PRODUCE PRE-CURED INNERLINERS |
摘要 |
Method for providing precured innerliners (50) having a predetermined cross sectional profile for use as part of a pneumatic tire assembly used in a bladder-less shaping and vulcanizing mold. The innerliner (50) is formed fro m a continuous strip of elastomeric material (12) hot formed using a calender assembly (10) with a profiled calender roller (16). The formed strip is cure d "in-line" in a press (38) having a profile matching platen (80) before being wound onto a tire building drum (48). After the pneumatic tire assembly is completed, the assembly is shaped and cured in a bladder-less mold, utilizin g the precured innerliner as the impervious inner layer. Initially, the center region (62) of the innerliner is at least twice as thick as the lateral regions (72, 74). In the finished pneumatic tire, the innerliner exhibits a uniform thickness.
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申请公布号 |
CA2352237(A1) |
申请公布日期 |
2000.06.02 |
申请号 |
CA19982352237 |
申请日期 |
1998.11.25 |
申请人 |
THE GOODYEAR TIRE & RUBBER COMPANY |
发明人 |
BENZING, JAMES ALFRED II;DOWNING, DANIEL RAY;YOVICHIN, ALBERT JAMES |
分类号 |
B29C35/02;B29D30/00;B29D30/06;B29D30/08;B29K21/00;(IPC1-7):B29D30/00 |
主分类号 |
B29C35/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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