Assembly for limbing tree stems
US4766939A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 9, 1987 |
| Grant date | Aug 30, 1988 |
| Priority date | — |
| Expiry date | Apr 9, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G23/095
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An assembly for limbing tree stems comprises two limbing tools (53, 53') movable towards and away from each other, and two feeding units (1, 1') which are also movable towards and away from each other and arranged for longitudinal feeding of individual stems past the limbing tools limbing the stems. Each limbing tool (53) is connected to an associated feeding unit (1) and arranged to follow this unit when moving towards and away from the stem. Further, the limbing tool is located substantially in the extension of the contact surface of the feeding unit with respect to the stem. The feeding units and the limbing tools are movable towards and away from each other in a common plane to which rotary shafts for driving the feeding units are provided at right angles. Each limbing tool is mounted on at least one arm which is articulated or pivotally connected to a frame for the feeding unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.