| 摘要 |
A pruning hook comprise an extension shank11, a blade unit13mounted on a first end of the extension shank, a driving cord131for operating the blade unit, a movable pulley unit30connected with the driving cord, a fixed pulley unit20secured in the extension shank, a pull cord40mounted between the movable pulley unit and the fixed pulley unit, a holding member12movably mounted on the extension shank and connected with a first end of the pull cord, and a pulling handle14detachably mounted on a second end of the extension shank and connected with a second end of the pull cord. Thus, when the pull cord is pulled, the movable pulley unit is moved relative to the fixed pulley unit to drive the blade unit so as to perform a shearing action in an energy-saving manner. |
