发明授权
US4601192A Method of producing an expansion sleeve for a metallic expansion dowel
assembly
失效
制造用于金属膨胀销组件的膨胀套筒的方法
- 专利标题： Method of producing an expansion sleeve for a metallic expansion dowel assembly
- 专利标题（中）： 制造用于金属膨胀销组件的膨胀套筒的方法
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申请号： US689666申请日： 1985-01-08
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公开(公告)号： US4601192A公开(公告)日： 1986-07-22
- 发明人: Gusztav Lang , Erich Leibhard , Peter Froehlich
- 申请人： Gusztav Lang , Erich Leibhard , Peter Froehlich
- 申请人地址： LIX Furstentum
- 专利权人： Hilti Aktiengesellschaft
- 当前专利权人： Hilti Aktiengesellschaft
- 当前专利权人地址： LIX Furstentum
- 优先权： DEX3400475 19840109
- 主分类号： B21K1/44
- IPC分类号： B21K1/44 ; B21K1/74 ; B21K1/76 ; F16B13/12 ; B21D31/00
摘要：
An axially elongated expansion sleeve is formed from an extruded cylindrically shaped blank with a blind hole in one end. An axially extending part of the blank from the other end is deformed into a U-shaped section of uniform thickness. The U-shaped section is upset so that it increases in thickness toward the other end. The upset U-shaped section is shaped to provide it with a cylindrically shaped outside surface with the inside base of the section sloping toward the axis of the sleeve in the direction toward the other end.