Gearbox
US6718841B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 16, 2002 |
| Grant date | Apr 13, 2004 |
| Priority date | — |
| Expiry date | May 16, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/194
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A transmission with a drive shaft (10), an output shaft (20) mounted coaxially thereto and a countershaft (30), there being provided a first constant gear pair (K1) that can transmit the rotation of the countershaft (30) to the output shaft (20) and wherein respective toothed gear pairs are allocated to the individual gears, the gear pairs optionally transmitting the rotation of the drive shaft (10) to the countershaft (30). A second constant gear pair (K2) can transmit the rotation of the countershaft (30) to the output shaft (20). The toothed gears (1-1, 1-2; 2-1, 2-2; 3-1, 3-2) of a gear of a first group of gears can be optionally select to be operative between the drive shaft (10) and the countershaft (30), the rotation of the countershaft (30) being transmissible via the first constant air (K1) to the output shaft (20). After switching to the second constant gear pair (K2), a gear of a second group of gears, via the second constant gear pair (K2) can be switched to the output shaft (20) by selecting a toothed gear pair (3-1, 3-2) of a gear of the first group and transmitting the rotation of the countershaft (30) via the second constant gear pair (K2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.