发明名称 |
Method of making green tyre |
摘要 |
<p>A method of making a green tyre comprises: winding a carcass ply of rubberised cords around a building drum (1) into a substantially cylindrical body (A); pressing the cylindrical body (A) against the building drum (1) through the entire circumference so as not to allow the carcass cords to move axially and circumferentially of the drum; constricting edge portions of the substantially cylindrical body (A) so that the outer diameter thereof is decreased; setting a bead core (C) around each of the constricted edge portions; folding back the edge portions around the bead cores (C); releasing the cylindrical body (A) from the pressing against the building drum (1) after the edge portions are constricted at the earliest; and swelling a main portion of the cylindrical body between the bead cores (C) while decreasing the width between the bead cores (C). <IMAGE></p> |
申请公布号 |
EP1136243(A2) |
申请公布日期 |
2001.09.26 |
申请号 |
EP20010302410 |
申请日期 |
2001.03.15 |
申请人 |
SUMITOMO RUBBER INDUSTRIES LIMITED |
发明人 |
OMOKAWA, TOSHIHIKO |
分类号 |
B29D30/28;B29D30/20;B29D30/26;G01M1/38;(IPC1-7):B29D30/20 |
主分类号 |
B29D30/28 |
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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