Support pad for drill
US5697737A · kind A · utility
13Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1995 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Sep 11, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/892
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A drill includes support pads for supporting and guiding the drill in the drill hole. The support pads are formed as parallelepiped-shaped cemented carbide bodies which each have two wing-shaped protrusions on their longitudinal sides. In a corresponding way, the drill head of the drill includes recesses with two bulged parts on the long sides. This gives the support pad a determined axial position and strengthens the support pad at the weakening caused by the central hole. Further, the support pad can be turned half a revolution if one of its ends becomes damaged since the end spaces do not have to function as abutment surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.