Patent ID: 6997367

Claim:
A handy electric nailing gun comprising: a housing, said housing comprising handhold means for holding by hand, an elongated nail chamber adapted to accommodate nails, said nail chamber having an inner closed end and an outer open end, a follower spring installed in the inner closed end of said nail chamber and adapted to push loaded nails toward the outer open end of said nail chamber, a barrel perpendicularly aimed at the outer open end of said nail chamber; a power unit, said power unit comprising a power source, a first power switch, and a second power switch, said first power switch and said second power switch being electrically connected in series to said power source and each having a switching rod; a transmission unit, said transmission unit comprising a motor electrically connected to said power unit, a transmission gear set rotatable by said motor, and an output gear meshed with said transmission gear set and rotatable by said transmission gear set upon operation of said motor, said output gear having a series of teeth arranged around a part of the periphery thereof and a push rod; a striking mechanism controllable by said transmission unit to drive nails out of said nail chamber, said striking mechanism comprising a firing pin, said firing pin having a longitudinal rack formed integral with the periphery thereof for engagement with the teeth of said output gear, and a firing spring connected between one end of said firing pin and a part inside said housing and adapted to push said firing pin toward the outer open end of said nail chamber to drive one nail out of said nail chamber after disengagement of said rack from the teeth of said output gear; and a control unit adapted to control on/off of said power unit, said control unit comprising a first control button adapted to press the switching rod of said first power switch and to further switch on said first power switch, a second control button adapted to control on/off status of said second power switch, a press member coupled to said housing and pressed on the switching rod of said second power switch to switch off said second power switch, said press member having an elongated coupling hole coupled to a pivot pin inside said housing, a push block controllable by said second control button to move said press member away from the switching rod of said second power switch and to further switch on said second power switch, and a return spring adapted to return said press member after said press member has been moved away from the switching rod of said second power switch by said push block.