Felling head with offset arms
AssigneeJohn Deere Forestry Oy
InventorBenjamin Disabatino
Life of this patent
Estimating the term…
Abstract
The accumulator and harvesting arms in a front cut felling head are offset to one side of the machine so as to hold a bundle of cut trees more to one side than the other so as to create more room in front of the accumulator arms to the side of the bundle in which to cut and receive a freshly cut tree.
Claims14
In a front cut felling head for a feller buncher having a cutter and at least two accumulator arms for holding a bundle of one or more cut trees and at least two harvesting arms for moving a cut tree into an accumulation area to be held by the accumulator arms, each of the accumulator arms including an outer arm pivotally connected to an inner arm, the accumulator arms being pivotally mounted to a frame of the felling head on opposite sides of a forward longitudinal axis of the felling head, the forward longitudinal axis being directed in the direction of forward movement of the feller buncher and located centrally relative to the cutter of the head such that the cutter is fed through a tree to be cut parallel to the forward longitudinal axis, the improvement wherein a pivot point of one of said accumulator arms to the frame is further rearwardly than a pivot point of the other accumulator arm to the frame relative to the forward longitudinal axis of the head, such that a line drawn between the pivot axes of the two accumulator arms intersects the forward longitudinal axis of the felling head at an angle other than 90°.
In a front cut felling head for a feller buncher having a cutter and at least two accumulator arms for holding a bundle of one or more cut trees and at least two harvesting arms for moving a cut tree into an accumulation area to be held by the accumulator arms, each of the accumulator arms including an outer arm pivotally connected to an inner arm, the accumulator arms being pivotally mounted at pivot points to a frame of the felling head on opposite sides of a forward longitudinal axis of the felling head, the forward longitudinal axis being directed in the direction of forward movement of the feller buncher and located centrally relative to the cutter of the head such that the cutter is fed through a tree to be cut parallel to the forward longitudinal axis, the improvement wherein one of the accumulator arms has a first shape to push trees toward the other of the accumulator arms, the other of the accumulator arms having a second shape, and the second shape being different from the first shape.
Dependencies are inferred from the claim text.