Clutch with cantilevered Belleville spring
US4632235A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1985 |
| Grant date | Dec 30, 1986 |
| Priority date | — |
| Expiry date | Jul 26, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2013/706
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A friction disc clutch includes a radially extending Belleville diaphragm spring having its outer peripheral portion rigidly secured to a flywheel. In one preferred form, the diaphragm spring reacts against a fulcrum on the rear side of a pressure plate to effect engagement and release of a pull type friction clutch. A mounting portion integrally joined with the radially extending Belleville diaphragm spring, includes an annular rim for affixation to the flywheel. The result is a "cantilevered" Belleville spring action, wherein the forces obtainable are greater than those normally achieved by a Belleville having its outer portion unconstrained and hence free for axial deflection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.