Patent ID: 8205778

Claim:
A nailing device adapted for nail units of different sizes, comprising: a main body, defining a chamber therein; a striker, disposed in the chamber, the striker being movable between a release position and a potential position, the striker having an abutting surface; an actuator, having a pressing portion and a driving portion, the driving portion being inserted into the chamber, the actuator being adapted to move the striker from the release position to the potential position; a resilient member, providing the striker with an elastic force to quickly bring the striker back from the potential position to the release position; a nail slot, disposed in the chamber, the nail slot comprising an upper wall and two side walls, a receiving space being defined between the upper wall and the two side walls, the receiving space having an opening facing downward; a magazine, disposed in the receiving space, the magazine having a main rail and a sub rail parallel to the main rail, the main rail being substantially as tall as the sub rail, the main rail having a first main side face and a second main side face, the sub rail having a first sub side face and a second sub side face, the first main side face facing the first sub side face, and the second main side face and the second sub side face facing the two side walls respectively, the first sub side face being stepped and comprising a first upper sub side face and a first bottom sub side face, the first bottom sub side face being closer to the first main side face than the first upper sub side face, a first gap being defined between the first main side face and the first bottom sub side face, a second gap being defined between the second main side face and its corresponding side wall, a third gap being defined between the second sub side face and its corresponding side wall; a guider, disposed in front of the magazine, the guider having two leg portions extending downward, at least one of the leg portions being formed with a step surface, the step surface facing the magazine and being adapted for the abutting surface to abut thereagainst and for the striker to slide therealong, a longitudinal slot being formed between the leg portions; an adjuster, having a protrusive portion locating in the longitudinal slot, the protrusive portion having a guiding surface facing the magazine, the guiding surface being vertically formed with two parallel longitudinal grooves and having a bottom end, the longitudinal grooves extending toward the bottom end, the longitudinal grooves corresponding to the first and second gaps respectively; an controlling means for selectively pushing the adjuster to flush the guiding surface with the step surface.