| 摘要 |
A slidable pulley arrangement (138, 228, 328, 428) slidably disposed with respect to the elongated pole (104, 204, 304, 404) of a pruning tool (100, 200, 300, 400) along with a first actuation handle (152, 250, 350, 340, 436) and a second actuation handle (154, 252, 352, 341, 438). A sliding movement of the slidable pulley arrangement (138, 228, 328, 428) is configured to actuate a working implement (102, 202, 302, 402) associated with the pruning tool (100, 200, 300, 400). A pull-cord (146, 244, 344, 362, 430) passing around the slidable pulley arrangement (138, 228, 328, 428) have a first end (148, 246, 346, 364, 432) attached to the first actuation handle (152, 250, 350, 340, 436) and a second end (150, 248, 348, 366, 434) attached to the second actuation handle (154, 252, 352, 341, 438). During a cutting action performed by pulling the first actuation handle (152, 250, 350, 340, 436) the second actuation handle (154, 252, 352, 341, 438) is configured to move along with the first actuation handle (152, 250, 350, 340, 436), and during a cutting action performed by pulling the second actuation handle (154, 252, 352, 341, 438) the second actuation handle (154, 252, 352, 341, 438) is configured to move while the movement of the first actuation handle (152, 250, 350, 340, 436) is restricted. |
