| 摘要 |
A binding tool including a holding and tensioning mechanism, a cutter arm having two operating parts, a driving device for driving the mechanism and a returning force giving mechanism. The tool comprises a handle connected with a handle connecting link operating the driving device and having a cutting operation end in the head; the driving device including a first toggle link, a second toggle link, a slider connecting link and a toggle slider, the slider connecting link being borne at the rear end of the slider and operating the slider against the returning force mechanism, a stopper roller borne by the toggle slider, a sector slider being in contact with and capable of being pushed down by the toggle slider, and a tension roller pivoted to the lower part of the toggle slider, regulated in the downward movement by a regulating guide, and being operated through the handle connecting link contacted with the stopper roller; a switching device having a locking projection on a switching lever borne coaxially with the tension roller and capable of switching and disposing the locking projection in an engaging or disengaging position with the operating part at the rear end of the cutter arm.
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