A - Human Necessities – 01 – G
Patent
A - Human Necessities
01
G
A01G 23/083 (2006.01)
Patent
CA 2057680
The invention relates to an improvement in a felling and delimbing apparatus of the type comprising: a head for felling and delimbing trees and including: a frame, at least two grasping jaws pivotally mounted on said frame and movable toward or away from each other, means for selectively moving and positioning said grasping jaws toward or away from each other, delimbing knives mounted on said frame and/or on said grasping jaws, and first and second means for cutting the trunk of a tree, the first means being positioned above the grasping means while the second means are positioned under the grasping means; a platform which is pivotally mounted on a frame of the vehicule and associated with means for moving it around a substantially vertical pivoting axis; a first and second booms pivotally connected together by a first pivoting means defining a substantially horizontal pivoting axis , the first boom being also pivotally connected with the platform by a second pivoting means defining a substantially horizontal pivoting axis, the second boom being also pivotally connected with a first supporting member by a third pivoting means defining a substantially horizontal pivoting axis, the frame of the head and the first supporting member being connected together; and driving means intended to engage the trunk of a tree having a longitudinal axis and drive it according to a driving axis, when said driving axis is substantially coaxial with an axis intended to be substantially coaxial with the longitudinal axis of the trunk and substantially parallel with a longitudinal axis of the head and passing between grasping jaws, in order to allow branches of the tree to be pressed against delimbing knives and thus delimb the tree. Said improvement is characterized by the fact that the frame of the head and the first supporting member are pivotally connected together by a fourth pivoting means defining a pivoting axis that is substantially not parallel with aforesaid horizontal axis, that means are provided to selectively move and position the head around the fourth pivoting axis, that said driving axis is substantially horizontal and that said driving means are mounted in such a way on the platform that movements of said booms, supporting member and head around their respective pivoting axis will allow to set the longitudinal axis of a trunk substantially coaxial with the driving axis and engage the driving means against this trunk. The invention also relates to a method of use of this improved apparatus. This apparatus allow to fell and delimb trees in length on the site.
Robic
Tanguay Jacques
LandOfFree
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