发明名称 |
Method and apparatus for butt-jointing edges of elastic material sheet |
摘要 |
<p>A method and an apparatus for butt-jointing edges of an elastic material sheet is disclosed. The elastic material sheet is supported such that the two edges to be butt-jointed are oppositely opposed. By moving a pair of counterrotating conical surfaces along the edges, the surfaces of the edges portions are drawn toward the center between the two edges so that the edges are butt-jointed. Between the conical surfaces, a small space is provided so as to form a small rib-like protrusion along the butt-joint. Then, the small rib-like protrusion of the elastic material is pressed down to flatten. Therefore, at the butt-joint interface, the elastic material irregularly interfuses to increase the strength of the butt-joint.</p> |
申请公布号 |
EP1862296(B1) |
申请公布日期 |
2009.06.17 |
申请号 |
EP20070007823 |
申请日期 |
2007.04.17 |
申请人 |
SUMITOMO RUBBER INDUSTRIES, LTD. |
发明人 |
TANAKA, GAKU;YARIMIZU, KAZUAKI;SAKAMOTO, MASAYUKI |
分类号 |
B29D30/42;B29C65/00 |
主分类号 |
B29D30/42 |
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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