Machine tool, especially a hand-held power tool with a turnable clamping element for clamping a tool on the tool spindle
US4434586A · kind A · utility
42Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1980 |
| Grant date | Mar 6, 1984 |
| Priority date | — |
| Expiry date | Dec 3, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B45/006
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A machine tool, especially a hand-held power tool, comprises a tool spindle and a clamping element turnably mounted on the spindle, in which the turnable clamping element is arrestable during rotation of the spindle for clamping or releasing a tool mounted thereon to thereby make a separate implement for preventing rotation of the clamping element during clamping or releasing the tool on the spindle unnecessary. In a special embodiment of the present invention the clamping or releasing forces during change of the tool are mechanically applied and the turning moment during clamping of the tool is limited to a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.