Bulldozer and blade control method
US9222236B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2013 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | May 28, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/2041
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A bulldozer includes a blade pivotably attached to a vehicle body, a blade operation lever, and a blade control section. The blade operation lever outputs a lowering instruction signal, a holding instruction signal, and a raising instruction signal for the blade. The blade control section controls a height of the blade according the signal input. The blade control section can lower the blade to a predetermined position when the lowering instruction signal and the holding instruction signal are input in order after a transmission has been switched from a state, which is different from an advancing state, to the advancing state. The blade control section can raise the blade to a predetermined position when the raising instruction signal and the holding instruction signal are input in order after a transmission has been switched from a state, which is different from a reversing state, to the reversing state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.