Spring clutch mechanism
US4440280A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 28, 1981 |
| Grant date | Apr 3, 1984 |
| Priority date | — |
| Expiry date | Jul 28, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D13/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A spring clutch mechanism for use in an electrophotographic copying machine includes a first boss connected to a driving shaft and a second boss connected to a driven shaft. The driving shaft and the driven shaft are co-axially disposed so that the two bosses confront each other. A coil spring is disposed around the two bosses. A first sleeve is disposed around the coil spring. One end of the coil spring is fixed to the first boss and the other end of the coil spring is fixed to the first sleeve. A second sleeve is slidably mounted on the first sleeve. A rubber plate is secured to the second sleeve so that the rubber plate confronts the flange of the second boss. In the non-transmitting mode, the first and second sleeves and the coil spring are rotated in unison with the first boss, but the second boss is not rotated. When the second sleeve is depressed toward the flange of the second boss, the rubber plate contacts the flange to brake the rotation of the second and first sleeves. Thus, the coil spring is tightly bound around the first and second bosses to transfer the rotation of the first boss to the second boss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.