Self-drilling connecting unit
US5213459A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 25, 1991 |
| Grant date | May 25, 1993 |
| Priority date | — |
| Expiry date | Sep 25, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B25/103
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A self-drilling connecting unit includes a shaft and a platelet-like cutting tool attachable to the shaft in a form- and/or force-fitted manner. The platelet-like cutting tool has a platelet-like protrusion lying in the plane of the cutting tool in its end region facing the shaft. The end region of the shaft, which bears the cutting tool, has a central opening. The protrusion of the cutting tool is insertable into the opening of the shaft and is braced by a pressure seat in the opening against two diametrically opposed boundaries of the inner wall of the opening whereby a sufficient mount and an exactly axis-parallel alignment of the cutting tool against the shaft are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.