Patent ID: 7874469
Filing Date: 2011-01-25
Classification: B25C

Abstract:
1. A nailing depth adjustable device for a nail gun, the nail gun including a gun housing having a front end, a barrel extending frontwardly from the front end of the gun housing in a nail-discharging direction and having a front open end, a magazine connected to a rear end of the barrel for supplying nails into the barrel, and an actuating member movable between enable and disable states for enabling and disabling discharging of the nails, said nailing depth adjustable device comprising: a barrel-extending part adapted to be mounted slidably on the barrel so as to be slidable on the barrel in the nail-discharging direction, and having a front open end adapted to be disposed frontwardly of the front open end of the barrel for abutting against an object to be nailed and for serving as a discharging outlet of the nails; an interconnecting part extending from said barrel-extending part so as to be co-movable with said barrel-extending part in the nail-discharging direction, and defining a driving surface; a support unit including: a support member that is adapted to be secured to the gun housing; and a length adjusting unit mounted movably relative to said support member and including a first part that has a first end segment extending toward said actuating member, and a second end segment disposed to be nonrotatably movable in the nail-discharging direction, and a second part that is coupled movably to said interconnecting part, that defines a driven surface facing and aligned with said driving surface in the nail-discharging direction, and that engages threadedly said first part so as to be rotatable relative to said first part and said interconnecting part and therefore to be movable relative to said first part and said interconnecting part in the nail-discharging direction, thereby permitting a distance between said driving and driven surfaces to be adjusted; wherein said barrel-extending part and said interconnecting part are co-movable rearwardly relative to said first and second parts and said support unit in the nail-discharging direction from a starting position, where said driving and driven surfaces are spaced apart from each other to a driving position, where said driving and driven surfaces contact each other, said barrel-extending part and said interconnecting part being further co-movable rearwardly relative to said support unit in the nail-discharging direction from the driving position to a final position for a predetermined distance so as to drive said first part through said second part to co-move with said barrel-extending part and said interconnecting part to an actuating position where said first end segment of said first part actuates said actuating member to move from the disable state to the enable state, thereby permitting adjustment of a traveling distance of said barrel-extending part from the starting position to the final position through adjustment of the distance between said driving and driven surfaces, a biasing member disposed to bias said first end segment to move toward said driving position.