Tree pruning machine

Details Tree pruning machine Tree pruning machine

A - Human Necessities

01

G

144/34, 30/63

A01G 23/02 (2006.01)

Patent

CA 1267590

ABSTRACT OF THE DISCLOSURE A tree pruning machine which has a body for vertically elevating on a standing tree through a wheel driven by an engine, a rotary device for turning on the periphery of the body, a cutting unit provided in the rotary device and having a detector for detecting the cutting resistance effected from the cutting branch, and a rotating speed reduction unit of the rotary device, wherein the rotating speed reduction unit is controlled by the detector of the cutting resistance. If a branch having a large current resistance such as a thick or hard branch makes contact with the cutting unit, the detector detects the contact of the cutting unit with the branch having large cutting resistance, the contact is detected by the detector to decelerate the rotating speed. Thus, the pruning machine can cut branches of a standing tree having large cutting resistance such as thick or hard branches.

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