发明公开
- 专利标题： Improved blind riveting assembly
- 专利标题（中）： Blindnietvorrichtung。
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申请号： EP91305573.7申请日： 1991-06-19
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公开(公告)号： EP0467535A1公开(公告)日： 1992-01-22
- 发明人: Williams, Barry Thomas
- 申请人： EMHART INC.
- 申请人地址： Drummond Plaza Office Park, 1423, Kirkwood Highway Newark, Delaware 19711 US
- 专利权人： EMHART INC.
- 当前专利权人： EMHART INC.
- 当前专利权人地址： Drummond Plaza Office Park, 1423, Kirkwood Highway Newark, Delaware 19711 US
- 代理机构： Wetters, Basil David Peter (GB)
- 优先权： GB9015648 19900717
- 主分类号： B21K1/60
- IPC分类号： B21K1/60
摘要：
A blind rivet assembly comprising a flanged rivet body and a mandrel having a stem provided with extension means wherein wire (3) fed to mandrel-forming means (4) is first subjected to at least one operation to form a series of indentations (9) on the surface of the feed wire (3). This may be carried out by a plurality of pairs of indenting rolls (6,6'; 7,7') arranged symmetrically around the feed wire.
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