Abstract
This paper attempts to design a universal, easy-to-use pruning tool suitable for taller branches. For this purpose, the author proposed an omni-directional electric pruning saw. The saw has a 360° rotatable head, which can prune branches in all directions. Under the saw blade, a V-shaped groove was added so that the branches can be introduced, cut and released stably. A telescopic rod was included in the design to prune branches at different heights. To facilitate the retraction and release of wire, a winding reel was provided to make the wire change with the length of the rod. In addition, there is a deadlock device at the handle, which prevents the manmade safety hazards. The proposed pruning saw was tested through an experiment. The results show that the saw could be used for various branches and was 4 times more efficient than the traditional hand saw.
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