Portable hand machine tool, particularly angle gringer
US4901479A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1989 |
| Grant date | Feb 20, 1990 |
| Priority date | — |
| Expiry date | Apr 14, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/17923
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An angle grinder comprising a hollow drive shaft with a counterflange mounted at an end thereof, a spindle extending through the drive shaft and coupled thereto for joint rotation therewith and an axial displacement relative thereto and having a threaded end portion for receiving thereon a clamp nut cooperating with the counterflange for clamping a grinding wheel therebetween, and a slidable wedge extending transversely through the drive shaft and the spindle and having an inclined surface displaceable along respective inclined surfaces of the drive shaft and the spindle to provide for axial displacement of the spindle relative to the drive shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.