Hydraulic excavator
US12000115B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2019 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | May 30, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/24
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydraulic excavator includes a plurality of cameras that are attached to an upper swing structure and photograph images of surroundings, a controller configured to detect an obstacle present around the upper swing structure on the basis of the camera images, and a speaker that makes a notification that the obstacle is detected when the controller detects the obstacle. When a lock lever is at a lock release position and control levers are maintained in a non-operating state from a time of a start of the controller, the controller permits the notification by the speaker. When the lock lever is at the lock release position and the control levers are changed from an operating state to a non-operating state, the controller permits the notification by the speaker when the non-operating state is continued for a predetermined time or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.