Centrifugal clutch belt tightening assembly
US4743221A · kind A · utility
Inventor
Key dates
| Filing date | Mar 20, 1987 |
| Grant date | May 10, 1988 |
| Priority date | — |
| Expiry date | Mar 20, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H55/563
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An automatic variable speed centrifugal clutch belt tightening assembly is characterized by even transmission of rotational drive to a pair of belts and includes a rotating spindle and clutch plate having an adjustable centrifugally operable belt tightening mechanism. The belt tightening mechanism includes a clutch drum and a spacer which define recesses for receiving the belts to be driven. The spacer is mounted on the spindle by a bearing assembly affording free rotational and limited longitudinal movement relative to the spindle. As the spindle rotates, the clutch drum presses the spacer against a flange of the spindle to evenly drive the belts while compensating for differences in belt size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.