Driving device and fixing device
US6725991B2 · kind B2 · utility
12Cited by
13References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2002 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Aug 30, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2403/724
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A driving device, which can maintain a sufficient rated torque of the non-magnetization type electromagnetic clutch, comprises a driving motor and a driving gear. The driving motor and the driving gear are connected by a non-magnetization type electromagnetic clutch. The electromagnetic clutch comprises a driving shaft, wherein the driving shaft of the electromagnetic clutch is made of non-magnetic material. Because the driving shaft is made of non-magnetic material, therefore the magnetic field of the permanent magnet is not adversely affected or disordered, and a stable rated torque can be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.