Patent ID: 7654293
Filing Date: 2010-02-02
Classification: A01G

Abstract:
1. A tree pruner comprising: a rod having a pruning unit connected to a top thereof and the pruning unit comprising a fixed part which has one end fixed to the rod and an arm having a first end pivotably connected to the fixed part, an extension extending laterally from the fixed part and including a fixed edge, a spring connected between the fixed part and a second end of the arm, a movable part having an end fixed to the arm and a mediate portion of the movable part pivotably connected to the fixed part, a movable edge defined in a side of the other end of the movable part and movable toward the fixed edge when the arm is pivoted; a positioning seat movably positioned on the rod and including a first end with a through hole defined therethrough, the rod extending through the through hole, and a pulley unit including a stationary pulley connected to a second end of the positioning seat and a pulley frame connected to the second end of the arm, a movable pulley connected to the pulley frame, a rope reeving the movable pulley frame and the stationary pulley.