Work vehicle
US11388853B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2019 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Mar 8, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/0444
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vehicle includes; a vehicle body on which the motor is mounted; an apparatus provided to the traveling vehicle body and also driven by drive power from the motor; an apparatus that performs work on a field; an apparatus that changes the speed of drive power input from the motor and transmits the drive power; a tool that includes speed change stages and is also capable of speed change operation of the speed change apparatus by human operation; a controller that, when the number of speed change stages is changed based on human operation of the speed change operation tool, outputs to the speed change apparatus a speed change command for each predefined number of stages and is also capable of outputting the speed change command for each defined speed change interval; and an operation mechanism that enables adjustment of the speed change interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.