Rolling element transmission
US6159125A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 1998 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Dec 30, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19181
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A transmission includes a guideway (20) formed between a pair of tracks (22, 24) extending in a closed loop (21), and an endless train of rolling elements (X, Y, B) extending along the closed loop and rolling on the tracks and on each other. An input shaft (10) turns an input wheel (32) that carries a plurality of input wheel rollers (34), with the input wheel rollers pushing selected ones (X) of the rolling elements to move the train of rolling elements along the closed loop. An output shaft (12) is turned by an output wheel (40), with the output wheel carrying a plurality of output wheel rollers (36) that are in the path of the rolling elements to be moved by them. The rolling elements include rollers (X, Y) that roll along one track (24) and balls (B) lying between the rollers and rolling on the other track (22) and against the rollers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.