Hand power tool
US6793023B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2003 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Jan 30, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2250/201
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention is based on a hand power tool having a tool mount capable of being driving in an at least rotating fashion via a drive motor and a drilling spindle (13), which said tool mount comprises a clamping device for securing tools that is capable of being operated in the direction of rotation of the drilling spindle (13), and having an arresting mechanism (38), via which the drilling spindle (13) can be coupled in torsion-resistant fashion relative to a part (27) of the machine housing (26) to tighten and loosen the clamping device of the tool mount (12), and which opens automatically when torque is transferred from the drive motor to the tool mount (12) and locks automatically when torque is transferred from the tool mount (12) to the drive motor. The arresting mechanism (38) is located on an intermediate shaft (17) and combined with a safety clutch (58) that is also located on the intermediate shaft (17) (FIG. 2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.