Two belt over-running clutch pulley
US5827143A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1997 |
| Grant date | Oct 27, 1998 |
| Priority date | — |
| Expiry date | Jun 4, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D41/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A variable speed drive device for mounting to a rotatable shaft and being driven by first and second belts. The device includes a first pulley of a first diameter and a second pulley of a second diameter, each engaging one of the belts. The first pulley mounts directly to the shaft via a mounting hub extending laterally therefrom. The second pulley is positioned radially outward of the hub and a bearing is located between the two. Also located between the two is a clutch mechanism that engages when the second pulley tries to rotates faster than the first pulley. In this manner, the first pulley drives the shaft at a first speed when the first pulley is rotating faster than the second pulley and the second pulley drives the shaft at a second speed when the second pulley is trying to rotate faster than the first pulley.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.