Construction machine safety apparatus and controlling method
US11377821B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2018 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Jul 18, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/6355
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of controlling a safety apparatus of a construction machine includes: applying a power to the construction machine when a key switch operation of a worker is input; receiving operation signals of the parking switch, the FNR switch, and the pilot cutoff switch; determining whether operation states of the parking switch, the FNR switch, and the pilot cutoff switch satisfy predetermined conditions; and controlling the construction machine to be available for the start-up when the predetermined conditions are satisfied. The predetermined conditions are that the parking switch is operated to be on so that a parking brake is operated, the FNR switch is operated to select a neutral so that a traveling direction of the construction machine is in a neutral state, and the pilot cutoff switch is operated to be on so that the construction machine is in a pilot cutoff state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.