Device and method for trimming a tree

Details Device and method for trimming a tree Device and method for trimming a tree

1998-09-11

1999-11-02

Bray, W. Donald

Woodworking

Process

Timber harvesting or processing

144 2413, 1442082, 1442485, 144357, B27L 100, B27B 100

Patent

active

059751681

ABSTRACT:
A trimming device and method maintains a first trimming member of a tree harvester head at a preselected transverse position relative to a tree trunk during relative longitudinal movement of the tree trunk. A first control device having a tree trunk engaging portion movably connected to the first trimming member selectively establishes the relative transverse position of the first trimming member and the tree trunk. An actuator urges the tree trunk engaging portion into engagement with the tree trunk and the first trimming member at the preselected transverse position.

REFERENCES:
patent: 4194542 (1980-03-01), Eriksson
patent: 4515192 (1985-05-01), Eriksson
patent: 4922976 (1990-05-01), Hacker
patent: 4974648 (1990-12-01), Propst
patent: 5058638 (1991-10-01), Hacker et al.
patent: 5219010 (1993-06-01), Eriksson

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