| 摘要 |
A pusher piston shifts a nail by a predetermined distance along an eject hole before a driver blade drives the nail. In this case, the predetermined shifting distance of the pusher piston satisfies a requirement that the tip of the nail protrudes out of the eject hole while the nail itself is not removed off a band member. Thus, the nail is surely held by the band member even when the nail is positioned at the pushed-out position where the tip of the nail protrudes out of the eject hole.
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