Rotation system for a felling head
US8141602B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 2009 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Jun 10, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19056
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A rotation system for a felling head mounted to a boom, the rotation system including: an adapter which is pivotally mounted to the boom; a housing fixed to the adapter; a gear system enclosed between the housing and the felling head and operable to allow the felling head to rotate with respect to the housing about an axis of rotation; and a plurality of actuators mounted to the housing and engaging the gear system, the plurality of actuators being operable to drive the rotation of the felling head, the plurality of actuators engaging the gearing system at positions below the axis of rotation so as to provide a vertical support therefor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.