Work machine
US11970840B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2019 |
| Grant date | Apr 30, 2024 |
| Priority date | — |
| Expiry date | Mar 18, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/2296
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An articulated-type front work implement has a boom, an arm, and a bucket that are driven members coupled to each other; a boom cylinder, an arm cylinder and a bucket cylinder that are hydraulic actuators each of which drives a corresponding one of the plurality of driven members on the basis of an operation signal; a plurality of operation members each outputting the operation signal to one of the hydraulic actuators; and a controller that outputs the operation signal to at least one of the plurality of hydraulic actuators or executes area limiting control of correcting the output operation signal such that the front work implement moves on a target surface preset for a work target of the front work implement or within an area above the target surface, and corrects the operation signal on the basis of information related to operation of the hydraulic actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.