Operation timing adjustment feature null of continual striking and single-engine striking

摘要

PROBLEM TO BE SOLVED: To provide a driving timing adjustment mechanism of a nail driver by which a nail can be driven in at the optimum operating timing whether in a single driving mode or in a continuous driving mode. ;SOLUTION: A contact lever 12 abutting to and pressing in the valve stem 5 of a trigger valve 1 is disposed in a trigger lever 3 in such a way as to be movable in a direction crossing over the extension of operation of the valve stem 5. An abutting part abutting to the valve stem 5 at the positions of both moving ends is formed in the contact lever 12, and by varying the interval between the abutting part at the position of each moving end and the valve stem 5, the time from the start of operation of the contact lever 12 to when it abuts to the valve stem 5 is varied between one moving end position and the other moving end position.;COPYRIGHT: (C)1998,JPO