发明申请
- 专利标题： SCREW DOWEL FOR FASTENING RAILS
- 专利标题（中）： 用于紧固钢丝绳的螺丝
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申请号： US13825147申请日： 2011-09-21
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公开(公告)号： US20130228634A1公开(公告)日： 2013-09-05
- 发明人: Winfried Bosterling , Michael Harrass , Dierk Bressel
- 申请人： Winfried Bosterling , Michael Harrass , Dierk Bressel
- 申请人地址： DE Werdohl
- 专利权人： VOSSLOH WERKE GMBH
- 当前专利权人： VOSSLOH WERKE GMBH
- 当前专利权人地址： DE Werdohl
- 优先权： EP10177840.5 20100921
- 国际申请： PCT/EP2011/066399 WO 20110921
- 主分类号： E01B9/18
- IPC分类号： E01B9/18
摘要：
Screw dowel for concreting into a railway sleeper or ballastless track and frictionally connecting to a sleeper screw, containing a threaded portion (14) with external thread flights (18) arranged on the outside of the screw dowel (10) and with internal thread flights (19) arranged on the inside of the screw dowel; and an upper subportion (16) without external thread that is situated close to the dowel opening (26) in the installed state; the screw dowel containing two constituent parts made of different materials, namely a basic body made of plastic and a cylindrical ring (20) made of a steel material and mounted with a form fit and/or force fit.