Apparatus for maintaining stability of mobile land vehicles on sloping terrain
US4679803A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1986 |
| Grant date | Jul 14, 1987 |
| Priority date | — |
| Expiry date | Jan 27, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G23/083
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to mobile land vehicles having a boom assembly, and more particularly to vehicles used for felling and handling trees on steep mountainous terrain. The vehicle of this invention includes apparatus for providing multi-directional relative movement between a conventional tread assembly of the caterpillar type and a swing-house assembly which includes a boom subassembly supporting tree-felling and handling equipment, so that the swing-house assembly is maintained in a substantially level relationship with the horizontal, regardless of the inclination of the ground on which the vehicle rides, and so that the center of gravity of the vehicle is optimized by weight transfer corresponding to the type of ground inclination encountered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.