Patent ID: 7213733

Claim:
A nail gun switch mechanism comprising: a trigger valve bar received in a trigger of the nail gun; a trigger lever pivotally disposed on the trigger; a safety slidable bar pivotally disposed on a gun body; a longitudinal guiding hole formed at a peripheral side of the gun body between the safety slidable bar and the trigger; a shaft slidably received in the guiding hole; a switch bar arranged on the shaft, which brings the shaft to rotate in the longitudinally guiding hole; and a hitting base of the safety slidable bar extending out from a hitting mouth formed at a bottom portion of the gun body; wherein the shaft has a bias pole disposed at a top portion thereof, in which the bias pole can synchronously rotate with the shaft and can be reposited by adjusting the switch bar, and the trigger lever has a shorter end portion formed at an end thereof, which can be pushed by the bias pole to actuate the trigger valve bar when a sequential actuation operates, a longer end portion formed at the end, which can be pushed by the bias pole to actuate the trigger valve bar when a contact actuation operates and an opening formed at the end, which does not receive the push of the bias pole.