Automated change-speed gear box
US6354165B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2000 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Jan 6, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1926
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An automated change speed gearbox is provided. The gearbox includes at least two shafts arranged parallel to one another, in which fixed gears are arranged in an axially nondisplaceable and rotationally fixed manner coaxially with the first shaft, these fixed gears meshing at least indirectly with free gears which are arranged in an axially nondisplaceable but rotatable manner coaxially with the second shaft, both an annular sliding sleeve and a frictional-torque transmission device being arranged, likewise coaxially with the second shaft, between the first free gear and the second free gear arranged next to the latter, this annular sliding sleeve being displaceable axially in the direction of the first free gear by means of an actuator to establish a rotationally fixed and positive connection between the first free gear and the second shaft, whereas the frictional-torque transmission device can be displaced axially in the direction of the second free gear to transmit a frictional torque from the second shaft to the second free gear. To provide a simple and low-cost change-speed gearbox which allows rapid engagement of a gear, the invention envisages that the annular sliding sleeve…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.