Abstract: An abutment adjusting device for a nail gun has a horizontal sliding rail disposed on a bottom side of a nail cartridge of the nail gun. The sliding rail has multiple positioning grooves. An abutment having a containing groove opening upward is disposed on the sliding rail. The containing groove has two groove sidewalls, each of which has at least a vertical guiding channel for slidably disposing a sliding block in the containing groove. The sliding block has a top having at least a protruding part corresponding to the positioning grooves. A first elastic unit is 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.

Abstract: An abutment adjusting device for a nail gun has a horizontal sliding rail disposed on a bottom side of a nail cartridge of the nail gun. The sliding rail has multiple positioning grooves. An abutment having a containing groove opening upward is disposed on the sliding rail. The containing groove has two groove sidewalls, each of which has at least a vertical guiding channel for slidably disposing a sliding block in the containing groove. The sliding block has a top having at least a protruding part corresponding to the positioning grooves. A first elastic unit is 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.

Abstract: An exemplary break mechanism is sued for a nail gun having a security slide rod, a magazine, a hitting slot configured for containing a signal nail, a nail guiding track disposed between the hitting slot and the magazine, the nail guiding track being capable of guiding a plurality of chain of nails into the hitting shot one by one, a side cover configured for covering the nail guiding track. The break mechanism includes an elastic member disposed between the break member and the side cover, the elastic member is configured to drive the break member to swing towards the hitting slot and the nail guiding track; and a break member having a detection portion and a block member. The detection portion is capable of detecting push action of a single nail in the hitting slot and the nail in the nail guiding track adjacent to the nail in the hitting slot. When the break member is pushed by the nail in the hitting slot or the adjacent nail in the nail guiding track, the block member releases the security slide rod.

Abstract: A filter is disposed inside an air chamber in a handle of a nail gun and located close to the end of the handle to divide the air chamber into a front chamber and a rear chamber. A cover with a connector extended therefrom is fixed on the end of the handle and a plurality of protruding ribs are formed on the inner wall of the front chamber, so that the filter is fixed between the protruding ribs and the connector. The filter includes an inner plate formed with a plurality of through holes and disposed adjacent to the front chamber, an outer plate formed with a plurality of through hole and disposed adjacent to the rear chamber and connected with the inner plate, and at least one filter element fixed between the inner and the outer plates to filter particles of high pressure air introduced into the air chamber.