Power tool
US8622148B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 19, 2011 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Dec 14, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2250/245
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hand-operated power tool, particularly a hammer drill (1), includes a drive motor (2), a tool spindle (3) to drive a tool in rotary manner, a rotary drive transmission (4) to couple the drive motor (2) to the tool spindle (3), a hammer mechanism (5) to drive the tool in percussive manner, a hammer mechanism transmission (6) to couple the drive motor (2) to the hammer mechanism (5), and a switching device (7) to activate and deactivate the hammer mechanism (5). The switching device (7) has a clutch (9) that is integrated in a force path (10) of the hammer mechanism transmission (6) and has an actuation stroke (11) for advancing and withdrawing the clutch (6), which stroke extends perpendicularly to the axis of rotation (8) of the tool spindle (3), or parallel to an axis of rotation (37) of an actuating element (28) that is rotated manually to actuate the switching device (7) for advancing and withdrawing the clutch (6).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.