초록 ▼

A mechanized tree pruner is mounted on the boom of a prime mover so the pruning head can be moved up and down a standing tree. The head is comprised of a main frame on which is mounted two delimbing stations each of which has a pair of movable delimbing knife chains mounted on grapple type arms. Bel

A mechanized tree pruner is mounted on the boom of a prime mover so the pruning head can be moved up and down a standing tree. The head is comprised of a main frame on which is mounted two delimbing stations each of which has a pair of movable delimbing knife chains mounted on grapple type arms. Below each station is a positioning means for orienting the head with respect to the standing tree. When the arms are closed causing the knife chains to encircle the tree, upward movement of the pruning head will then result in all limbs and branches being severed as they are impacted by the knife chains.

대표청구항 ▼

A pruner for severing limbs from a tree, comprising: a frame, at least two delimbing stations on the frame positioned substantially in an inline relationship, each delimbing station having at least a pair of movable grapple arms and flexible limb severing chains supported thereon, and means for open

A pruner for severing limbs from a tree, comprising: a frame, at least two delimbing stations on the frame positioned substantially in an inline relationship, each delimbing station having at least a pair of movable grapple arms and flexible limb severing chains supported thereon, and means for opening and closing the grapple arms about a tree whereby the flexible chains can be wrapped substantially about the entire circumference of the tree.