Hand-held power tool with a torque-limiting unit
US7455123B2 · kind B2 · utility
12Cited by
5References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 1, 2005 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Oct 25, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H1/46
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hand-held power tool has a motor output shaft, a tool driver, and a torque-limiting unit with which a maximum torque transferred from the motor output shaft to the tool driver is adjustable by an operator, the torque-limiting unit including a spring system, the spring system including differently-acting spring elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.