Staple Gun

A staple gun comprising:

• a main body having a cartridge, a handle and a power device, the cartridge having
• an elongated staple recess formed in the cartridge and having
• a recess opening located at a bottom of the cartridge;
• a first inner side surface;
• and
• a second inner side surface next to the first inner side surface of the staple recess;
• a bracket longitudinally and slidably mounted in the staple recess and capable of closing the recess opening of the staple recess;
• a through hole formed through the first inner side surface of the staple recess;
• and
• a taking opening formed through the first inner side surface and the second inner side surface of the staple recess and communicating with the recess opening of the staple recess;
• an adjusting strip slidably mounted in the staple recess and having a positioning recess aligning with the through hole of the cartridge when the adjusting strip is securely positioned in the staple recess;
• and
• a positioning device mounted on the cartridge, engaging the adjusting strip to hold the adjusting strip in place and having
• a positioning member being U-shaped, latitudinally and slidably mounted on the cartridge and having
• a first side;
• a second side opposite to the first side of the positioning member;
• an abutted section formed on the first side, slidably mounted in the through hole of the cartridge and having
• a protrusion formed on the abutted section and mounted in and engaging the positioning recess;
• and
• a push section formed on the second side and located outside the cartridge;
• and
• an elastic member compressibly mounted between the cartridge and pressing against the cartridge and the first side of the positioning member.