发明名称 |
METHOD OF MANUFACTURING TIRE TUBES, AND TIRE TUBE |
摘要 |
The tube material 2' extrusion-molded by the extrusion molding machine has an air chamber peripheral wall 3i, a sealant chamber peripheral wall 3o and a partition wall 4. An air chamber 5 is defined between the air chamber peripheral wall 3i and the partition wall 4, and a sealant chamber 6 is defined between the sealant chamber peripheral wall 3o and the partition wall 4. On the air chamber peripheral wall 3i are protrusively formed a plurality of rib-shaped projections 15 each forming a thick portion for reinforcement. The thickness t3 of each of the projections is approximately equal to the thickness t1 of the peripheral wall 3 and the thickness t2 of the partition wall 4. It is possible to efficiently extrusion-mold the tube material 2' having the thick portions for reinforcement by thus approximately equalizing the thickness of each part of the tube material 2 including the rib-shaped projections 15. <IMAGE> |
申请公布号 |
EP1060871(B1) |
申请公布日期 |
2004.09.29 |
申请号 |
EP19990901960 |
申请日期 |
1999.02.08 |
申请人 |
HONDA GIKEN KOGYO KABUSHIKI KAISHA |
发明人 |
YAMAGIWA, TOSHIO |
分类号 |
B29C47/00;B29C47/20;B29C65/00;B29D23/00;B29D23/24;B29D30/06;B60C5/04;B60C5/08 |
主分类号 |
B29C47/00 |
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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