Parallel linkage-type working apparatus for construction equipment
US9447560B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 24, 2012 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Apr 7, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/2271
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present disclosure relates to a parallel linkage-type working apparatus for construction equipment in which a parallel lever and a parallel link operate to prevent a working tool from bending inward so that, even if the working tool is raised, a tilting phenomenon in which the working tool is inclined inward may be prevented, and an amount of change in posture of the working tool at each height may be reduced. Also, the parallel linkage-type working apparatus is capable of increasing excavation ability or power with a posture on the ground surface by supplying a larger amount of hydraulic fluid at one time when working hydraulic pressure is supplied to each cylinder head, in comparison with a case in which working hydraulic pressure is supplied to a cylinder rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.