发明公开
EP0799387A1 LOCH- UND GEWINDEFORMENDE SCHRAUBE SOWIE VERFAHREN ZUM EINDREHEN DERSELBEN
失效
LOCH-UND GEWINDEFORMENDE SCHRAUBE SOWIE VERFAHREN ZUM EINDREHEN DERSELBEN
- 专利标题: LOCH- UND GEWINDEFORMENDE SCHRAUBE SOWIE VERFAHREN ZUM EINDREHEN DERSELBEN
- 专利标题(英): Hole-shaping and thread-forming screw and process for driving in the same
- 专利标题(中): LOCH-UND GEWINDEFORMENDE SCHRAUBE SOWIE VERFAHREN ZUM EINDREHEN DERSELBEN
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申请号: EP95941720.0申请日: 1995-12-18
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公开(公告)号: EP0799387A1公开(公告)日: 1997-10-08
- 发明人: ÖSTERLE, Helmut , PALM, Erich
- 申请人: SFS Industrie Holding AG
- 申请人地址: Nefenstrasse 30 9435 Heerbrugg CH
- 专利权人: SFS Industrie Holding AG
- 当前专利权人: SFS Industrie Holding AG
- 当前专利权人地址: Nefenstrasse 30 9435 Heerbrugg CH
- 代理机构: Ludescher, Hans
- 优先权: DE19944445815 19941221
- 国际公布: WO1996019676 19960627
- 主分类号: F16B25
- IPC分类号: F16B25 ; F16B33
摘要:
A hole-shaping and thread-forming screw (1) has a non-cutting hole-shaping end section (2) that ends in a point, a shaft section (4) provided with a thread (3) and an engagement section (5). The non-cutting hole-shaping end section (2) tapers towards its end. The whole screw is made of a stainless material, in particular its end section (2). When the screw (1) is driven in, a hole is shaped without cutting into the workpiece (7) and is then threaded by the screw (1) itself.
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