发明授权
- 专利标题： Chipless thread-forming screw
- 专利标题（中）： 无夹螺纹
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申请号： US12070999申请日： 2008-02-21
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公开(公告)号： US08596943B2公开(公告)日： 2013-12-03
- 发明人: Sven Matthiesen , Peter Hertlein , Michael Baumgartner
- 申请人： Sven Matthiesen , Peter Hertlein , Michael Baumgartner
- 申请人地址： LI Schaan
- 专利权人： Hilti Aktiengesellschaft
- 当前专利权人： Hilti Aktiengesellschaft
- 当前专利权人地址： LI Schaan
- 代理机构： Abelman, Frayne & Schwab
- 优先权： DE102007000154 20070315
- 主分类号： F16B25/06
- IPC分类号： F16B25/06
摘要：
A chipless thread-forming screw (10) has a thread-carrying shank (11) provided at its opposite ends with a tip (13) and a head (4), respectively, and having a diameter between 0.25 and 0.35 mm, with the shank (11) having at least one frustroconical section (21) extending from the tip (13) in direction of the head (14) and having, with respect to the thread root (22), a point angle (α) between 200 and 300, and a cylindrical section (25) extending between the frustroconical section (21) and the head (14), and with a starting line (23) of the thread (15) remote from the head (14) being spaced from the tip (13) by a distance (Lt) from 0 to 0.3 mm.
公开/授权文献
- US20080226424A1 Chipless thread-forming screw 公开/授权日：2008-09-18
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