Nutating drive mechanisms having roller driving elements
US4620457A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1982 |
| Grant date | Nov 4, 1986 |
| Priority date | — |
| Expiry date | Oct 18, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H1/321
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A torque transmitting gearing system of the nutating type is equipped with a nutating idler member which is in torque transmiting engagement with both a stator and an output gear. Torque transmission between the respective elements is achieved via respective series of rolling, torque transmitting elements in the form of tapered rollers. The rollers are maintained in substantially continuous contact with both their respective driving and driven raceway surfaces, which are formed with trochoidal curvature. Within a given pair of coacting gear surfaces, one surface will be formed with epitrochoidal curvature, and the other with hypotrochoidal curvature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.