Electromagnetic clutch with brake
US8678152B2 · kind B2 · utility
6Cited by
0References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 6, 2009 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Sep 17, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2121/22
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electromagnetic clutch with a brake has a novel function which, after the electromagnetic clutch is disengaged, accurately prevents co-rotation of a driven shaft to improve response when the brake is activated. Brake means (9) is configured such that a facing (93) is constantly made to slide on a brake friction surface (5d) of a rotor by a spring (92) having a base end supported by a field (8) through an arm (7). The magnitude of brake torque (Tb) caused by the brake means (9) is set to be not less than slide torque (Ta) between a driven shaft (2) and a drive shaft (1) and less than driving torque (Tc) by the drive shaft (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.