| 发明名称 | Screw method for forming a screw thread | ||
| 摘要 | In the case of a screw having at least one thread (26) that is formed by a rolling process, especially a flat-die rolling process, whereby the thread (26) consists of two ridges of material (28a, 28b) which are shaped from a blank (12) by means of cold-forming during the rolling process in such a way that the thread has a closing crease (32) where the ridges of material (28a, 28b) meet each other, it is provided that the closing crease (32) is situated in the area of a flank (30a, 30b) of the thread (26). | ||
| 申请公布号 | US8899898(B2) | 申请公布日期 | 2014.12.02 |
| 申请号 | US201213533422 | 申请日期 | 2012.06.26 |
| 申请人 | Hilti Aktiengsellschaft | 发明人 | Rosenkranz Falk;Achleitner Corinna |
| 分类号 | E05B35/04 | 主分类号 | E05B35/04 |
| 代理机构 | Davidson, Davidson & Kappel, LLC | 代理人 | Davidson, Davidson & Kappel, LLC |
| 主权项 | 1. A screw comprising: at least one thread formed by a rolling process, the thread having two ridges of material shaped from a blank by cold-forming during the rolling process in such a way that the thread has a closing crease where the two ridges of material meet each other, the closing crease being situated in an area of one of the flanks of the thread. | ||
| 地址 | Schaan LI | ||