Patent ID: 7556068
Filing Date: 2009-07-07
Classification: A01G

Abstract:
1. In a tree-mountable frame apparatus optimized for tree removal in arborist rigging procedures and having a tree-facing side configured for contact with a tree trunk at three contact positions, the frame apparatus having a central frame section and a pair of wing sections extending laterally from opposed sides of the central frame section, a means of improved engagement with a live tree while retaining the full capability for tree removals, comprising: the tree-mountable frame apparatus including a plurality of spikes comprising generally horizontally-oriented blades at least at one of the contact positions, and the frame apparatus having a recessed region on the tree-facing side, and a function converter device for selectively protecting a tree trunk against penetration by the spikes, comprising a hinged flip-out bracket having on one side a non-spiked tree engagement surface, said flip-out hinged bracket being mounted on the frame apparatus for pivotal swinging movement on a generally vertical hinge axis which is spaced away from the spikes, and which is spaced inwardly from outer lateral ends of the frame apparatus, such that said flip-out bracket has a stowed position in the recessed region of the frame apparatus, essentially out of contact with a tree trunk when the frame apparatus is in use engaging the spikes with a tree, and a rotated, operational position with said bracket adjacent to sharp ends of the spikes in a position to shield the spikes and prevent any substantial penetration of the spikes into the tree trunk.