Quick tensioning device for a portable machine tool, in particular for an angle grinding machine
US10828742B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2017 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Aug 18, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/33
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A quick tensioning device for a portable machine tool, in particular for an angle grinding machine, includes at least one output shaft which can be rotated, at least one clamping unit that is at least partly arranged in the output shaft and has at least one clamping element, which is movably mounted at least about and/or along a movement axis of the clamping unit, for fixing an insert tool unit to the output shaft without tools, and at least one torque transmission unit for transmitting a torque to the insert tool unit when the insert tool unit is arranged on the output shaft, said torque transmission unit having at least one torque transmission element which is formed separately from the output shaft. The quick tensioning device includes at least one securing unit at least for securing the torque transmission element to the output shaft in a rotationally fixed manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.