Working machine
US12134877B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2023 |
| Grant date | Nov 5, 2024 |
| Priority date | — |
| Expiry date | Dec 6, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/57
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A working machine includes a machine body, a left traveling device located left on the machine body, a right traveling device located right on the machine body, and a controller configured or programmed to perform automatic deceleration to automatically reduce a first rotation speed of a left traveling motor and a second rotation speed of a right traveling motor by shifting a speed stage of each of the left and right traveling motors from a second speed stage to a first speed stage that is lower than the second speed stage. The controller is configured or programmed to: not perform the automatic deceleration when the first rotation speed or the second rotation speed is equal to or higher than a predetermined rotation speed; and perform the automatic deceleration when the first rotation speed and the second rotation speed are less than the predetermined rotation speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.