Patent ID: 7163135

Claim:
A driving device of a cartridge of a nail driver comprising: a cartridge of a nail driver installed at a shot opening of a driver body for receiving nails; a stop plate installed at one lateral side of the cartridge for resisting against the nails within the cartridge so as to be retained in predetermined directions; the stop plate being formed by a first plane and a second plane; the stop plate being movably installed to the cartridge by using the second plane; the first plane of the stop plate serving for supporting the nails; the second plane being formed with at least one slot and a positioning hole the cartridge including a first end surface and a second end surface adjacent to the first end surface; the first end surface having a nail groove for receiving the nails and concave holes for receiving elastic elements; the second end surface being formed with at least one retaining hole and a receiving hole; at least one retainer passing through the slot of the second plane and the retaining hole of the second end surface so as to retain the stop plate to the cartridge; a positioning unit; one end of the positioning unit cooperating with the positioning hole of the second plane of the stop plate and another end thereof being installed to the receiving hole of the second end surface of the cartridge so as to secure the position of the stop plate with respect to the second end surface of the cartridge; wherein when it is desired to receive short nail bodies, the stop plate is pressed so that the positioning hole is overlapped with the positioning unit of the cartridge, the positioning unit inserts into the positioning hole to secure the stop plate in a predetermined position; and thus the first plane of the stop plate is near the receiving groove for receiving short nails; when it is desired to receive long nails, the positioning unit is pressed to retract from the positioning hole, the stop plate will be pushed away from the positioning unit to slide upwards; and thus a distance from the second plane of the stop plate to the receiving groove is long for receiving long nails.