| 摘要 |
A stapler for clinching materials together with a generally U-shaped staple. The stapler has an anvil with spaced-apart wedges disposed adjacent a backing plate, and the spaced-apart wedges have respective chamfers that contact legs of the staple and guide the legs away from each other. A driver blade is movable between the spaced apart wedges and pushes against a staple crown. As an actuator pushes the driver blade between the wedges, the staple is being pushed over the wedges. The actuator retracts the driver blade from between the spaced-apart wedges substantially independent of a biasing force pushing the spaced apart wedges against the backing plate.
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