Patent ID: 9061407
Filing Date: 2015-06-23
Classification: B25C

Abstract:
1. A control mechanism for an electric nail gun, the electric nail gun including a tool body, a safety member movable between a normal position and a pushed position, a trigger member pivotally movable with respect to the tool body, an impact unit for nail-striking, a driving module for driving movement of the impact unit to perform a nail-striking operation, and an electromagnetic valve for driving the impact unit to move toward the driving module such that the impact unit is driven by the driving module to perform the nail-striking operation, said control mechanism comprising: a first sensor adapted to be disposed adjacent to the safety member and operable to generate a first sensing signal in response to movement of the safety member from the normal position to the pushed position; a second sensor operable to generate a second sensing signal in response to operation of the trigger member; an actuating piece adapted to be mounted movably in the trigger member such that said actuating piece is adjusted selectively to one of a single shot position and a successive shooting position, and rotatable relative to the trigger member when in any one of the single shot position and the successive shooting position; a third sensor operable to generate a third sensing signal in response to rotation of the actuating piece; and a control unit adapted to be connected electrically to the driving module and the electromagnetic valve, and connected electrically to said first, second and third sensors; wherein said control unit activates the driving module upon receipt of one of the first and second sensing signals from said first and second sensors, and energizes the electromagnetic valve upon receipt of the third sensing signal from said third sensor.