Hand power tool and drive train
US9038745B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2011 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Nov 6, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/0028
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A drive train for supplying power to a power tool may include, a motor, a motor shaft, a rotational coupling mechanism connected to the motor shaft, and a drive shaft connected to the rotational coupling mechanism that forms the shape of a “U.” A pair of enmeshed bevel gears transfers the motion from the motor shaft to an orthogonal tool bit. The drive train may also include a hammering device that transfers a rotational impacting motion to the tool bit. A hand power tool for driving a screw may include a tool shell with an integrally formed vertical handle, a rotational recess formed into the tool shell opposite the handle, and a tool chuck within the rotational recess that drives a screw. The tool may incorporate the drive train as described above. The tool may include a mechanism for locking the tool chuck in a particular position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.