Automatic boom telescopic motion apparatus for working machine
US9868617B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2015 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | May 15, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C23/42
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An automatic boom telescopic motion apparatus for a working machine includes an automatic telescopic motion part configured to continue the telescopic motion of the boom without inputting an operation to perform the telescopic motion of the boom by the boom telescopic motion input part, in a state in which the on/off operation part is turned on, when the output detection part detects an output which is equal to or greater than a predetermined value and an operation is inputted to the boom telescopic motion input part to increase the speed of the telescopic motion of the boom to a value equal to or higher than a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.