Self-propelled climbing tree trimmer

A self-propelled climbing tree trimmer for severing branches from a tree comprising:

• a) a support ring divided into two equal parts with a hinge connecting the ring parts together, thus permitting the support ring to be axially rotated apart and surround a tree,
• b) a channel ring having two equal halves and a slot in the top, joined onto the support ring,
• c) a rotatable ring gear that is split into two equal parts, and juxtaposed on the channel ring in a revolvable manner,
• d) a plurality of pivoting knife blades attached to the ring gear in such a manner as to tilt inward when rapidly rotated as influenced by centrifugal force,
• e) a ring gear drive motor interfacing with the ring gear which rotates the ring gear at a speed tilting the blades sufficiently to engage and cut fronds or branches from a tree upon which the trimmer surrounds,
• f) a plurality of traction arms attached to the support ring having pivoting means for angularly positioning the arms adjacent to a tree, and
• g) a toothed traction wheel attached at a distal end of said traction arms for propelling the trimmer up and down a tree, with the channel ring and the ring gear synchronized to align with each other, thereby permitting the trimmer to open and close around a tree.

A self-propelled climbing tree trimmer for severing branches from a tree comprising:

• a) a split hinged support ring having a split channel ring joined therewith,
• b) a split rotatable ring gear having a plurality of pivoting knife blades juxtaposed on the channel ring in a revolvable manner and configured to pivot inward when rotated,
• c) a ring gear drive motor rotating the ring gear and pivoting the blades inward to engage and cut branches from a tree, and
• d) a plurality of traction arms attached to the support ring for angularly positioning the arms adjacent to a tree, each arm having a motorized traction wheel to propel the trimmer up and down a tree.