Variable speed change gear
US5937701A · kind A · utility
Inventor
Key dates
| Filing date | Oct 6, 1997 |
| Grant date | Aug 17, 1999 |
| Priority date | — |
| Expiry date | Oct 6, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/151
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
When an input shaft 6 is rotated by an external driving force, the resultant rotational force of the input shaft 6 is transmitted to an offset housing 21 of which rotational force in turn is transmitted to variable rings 39. If, at that time, angular volocities of the variable rings 39 are periodically varied relative to the angular velocity of the offset housing 21, the periodically varying angular velocities of the variable rings 39 are corrected to be substantially constant in a predetermined phase range, allowing only rotational forces having corrected angular velocities to be fetched from the variable rings 39 for transmission to an output shaft 7. Thus, by arbitrarily varying the angular velocities of the variable rings 39 relative to the angular velocity of the offset housing 21, the rotational speed of the output shaft 7 is steplessly varied relative to the rotational speed of the input shaft 7.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.