US 4,044,804 A · Tree shearer

Abstract

A shearing device is disclosed for severing trees and the like. The device is vehicle mounted, preferably on the front of a tractor, so that forward movement of the tractor causes shearing of a tree in contact with the device. The device includes a frame member with a pair of forwardly extending spaced arms one of which has a pivot member mounted thereon, with the pivot member carrying a severing element that can be moved in an arc toward and away from the other arm of the frame member. A tree brought into contact with the severing element will be severed as the severing element is caused to move toward the other arm of the frame member due to continued forward movement of the vehicle. After a tree has been severed, the pivot member is preferably biased to automatically return to normal position near the end of the arms of the frame member with the severing element at least partially spanning the space between the arms. Each tree sheared falls rearwardly and to one side in substantially the same manner and direction.

Claims15

Dependent claims

A tree shearing device, comprising:

a rigid frame member having fore and aft extending and transversely spaced edges defining a forwardly opening tree-receiving recess therein at a shearing area;
a pivot member supported on vertical axis structure fixedly mounted on said frame member and having severing means including a forwardly facing severing edge extending diagonally into said recess from one of the fore and aft extending frame edges for engaging trees received in said recess as said frame member advances to thereby cause said severing edge to be moved toward the other of said edges defining said recess and completely across the recess;
and horizontal guide means on the frame adjacent the other of said edges receiving a portion of said pivot member.

Dependencies are inferred from the claim text.

Tree shearer

Life of this patent

Tree shearer

Life of this patent

Abstract

Claims15