| 摘要 |
A tree pusher for safely felling trees. The tree pusher controls and determines the direction in which the tree falls, using a base (32), a frame (35), a detachable head (68) which engages the tree trunk, and an extendable screw-type trailer jack (40) that is repairable/replaceable during operation and capable of bearing the weight of a large tree, for urging the frame and the head against the trunk of the tree. For use on uneven ground, the tree pusher is provided with a base extension. A chain (34) is used to connect th e base of the tree pusher to the trunk of the tree, to prevent movement of the base when the jack is activated. The tree pusher can be readily moved to the job site, and can be used on any type of terrain, including hard surfaces, a nd for any type of tree, including trees with rotten wood. |
