Arrangement for braking a gearbox component
US4844223A · kind A · utility
4Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1988 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | Jan 22, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2003/123
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A change speed gearbox for a combine or the like has a main clutch on its input shaft and a shift collar shiftable into alternate positions from a neutral position to establish different driving ratios in the gearbox. An electro-magnetic brake is engageable with the input shaft and is actuated only when the shift collar is in its neutral position and the clutch is disengaged. The brake circuit includes a relay switch that automatically opens a predetermined time after it closes, so that power is supplied to the brake only for a limited period when the clutch is disengaged and the gearbox is in neutral.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.