Patent ID: 7575140

Claim:
An abutment adjusting device for a nail gun, comprising: a horizontal sliding rail disposed on a bottom side of an nail cartridge of the nail gun, the sliding rail having a horizontal guiding board on each side thereof, a plurality of positioning grooves opening downward being disposed between the guiding boards; an abutment having a containing groove opening upward, the containing groove having two groove sidewalls, each of the sidewalls having a horizontal groove and at least a vertical guiding channel, the horizontal grooves being mounted on the guiding board for guiding the abutment to be slidably disposed on the sliding rail; a sliding block with a top having at least a protruding part corresponding to the positioning grooves, the two sides of the sliding block respectively having at least a vertical ear-board, each ear-board is slidably disposed in the guiding channel for guiding the sliding block to be slidably disposed in the containing groove; and a first elastic unit disposed in the containing groove for driving the sliding block to move upward and further drive the protruding part to be engaged into the positioning grooves so as to position the abutment.