Working machine
US9850640B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2015 |
| Grant date | Dec 26, 2017 |
| Priority date | — |
| Expiry date | Nov 13, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A working machine comprising a ground engaging structure and an undercarriage connected to the ground engaging structure. A superstructure is rotatably mounted to the undercarriage so as to be rotatable relative to the undercarriage about a first generally upright axis, an operator's cab is rotatably mounted on the superstructure so as to be rotatable relative to the superstructure about a second generally upright axis, and a working arm is rotatably mounted to the superstructure so as to be moveable up and down about a generally horizontal axis. A drive arrangement is provided for driving the ground engaging structure to propel the working machine. The drive arrangement includes an engine and transmission that are housed within the undercarriage, and a majority of the engine is positioned below a level coincident with a lower extent of the superstructure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.