Device for producing drilled holes with an undercut
US5226763A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 24, 1992 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Aug 24, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/307672
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A device for producing drilled holes with an undercut, especially in facing panels, has a drilling machine, a drilling tool, an adaptor receiving the drilling tool and connected with the drilling machine so as to transfer torque, a holder, a bearing bush secured in the holder and provided with a rotatable and swivelable guide sleeve, a wobble plate secured on the drilling machine and the guide sleeve, a plurality of cylinders arranged on the holder concentrically about a center line of the guide sleeve and engaging the wobble plate. The cylinders are actuated and controlled in succession to produce a wobbling movement for reaming out an undercut in a drilled hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.