Tree felling head

Details Tree felling head Tree felling head

1999-07-09

2000-09-26

Bray, W. Donald

Woodworking

Special-work machine

Combined

144 341, 144336, 144335, A01G 2308

Patent

active

06123124&

ABSTRACT:
Described herein is a tree felling head for restraining, cutting and manipulating trees. The felling head comprises a holder connected to the manipulator arm of a tree cutting carrier, a motor at least partially housed in either the frame of the felling head or the holder, and a bearing-like member or transmission connecting the motor to the frame of the felling head. The frame further comprises arms for gripping trees and a saw for cutting same. The felling head preferably comprises a gear assembly for augmenting the torque produced by the motor. The gear assembly is preferably a planetary gear train and is at least partially housed in either the frame or the holder of the felling head.

REFERENCES:
patent: 4552191 (1985-11-01), Kuusilinna
patent: 4989652 (1991-02-01), Hansson
patent: 5101872 (1992-04-01), Scheuren
patent: 5579816 (1996-12-01), Hill et al.
patent: 5595225 (1997-01-01), Gilbert et al.
patent: 5727610 (1998-03-01), Isley
patent: 5908060 (1999-06-01), Fargeot
patent: 5975166 (1999-11-01), MacLennan
Brochure for Gilbert-Tech Inc. for Gilbert 1249 (at least as early as Jul. 8, 1998).
Brochure for Gilbert-Tech Inc. for Gilbert 1245 (May 1996).
Brochure for Gilbert-Tech Inc. for Gilbert 1252 (at least as early as Jul. 8, 1998).
Denharco Specifications Manual for CS5500RTA 240-Degree Side Tilt Felling Head (May 1997).

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