Transmission series
US5067361A · kind A · utility
Inventor
Key dates
| Filing date | Apr 9, 1991 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Apr 9, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19679
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Transmission series with a variable gear stage (variation stage) consisting of a pair of gearwheels. Within the series, the variation stage encompasses a range of permissible sizes (B.sub.i =B.sub.1 . . . B.sub.m) which in each case have the same centre distances (A.sub.i =A.sub.1 . . . A.sub.m). The same range of permissible transmission ratios (I.sub.i =I.sub.1 . . . I.sub.n) is provided for all sizes, so that the centre distances (A.sub.i) and the transmission ratios (I.sub.i) form a matrix (M). The number of components required is substantially reduced by correlating the graduation of the centre distances (A.sub.i) and the graduation of the transmission ratios (I.sub.i) in such a way that the same gearwheel is used in a variation stage sequence (S) comprising a number of variation stage sizes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.