| 摘要 |
PROBLEM TO BE SOLVED: To provide a kind of air driver equipped with a nail pusher. SOLUTION: A main body of the air driver has formed therein: a nailing piston for carrying out downward nailing action and upward returning action by driving of high-pressure air; a nail push air passage communicating with a nail push cylinder chamber of a nail push piston of the nail pusher; and an air ring having longitudinal holes and lateral holes formed therein. After the nailing piston carries out the downward nailing action, the longitudinal holes function to lead high-pressure air to the nailing piston which then carries out the upward returning action by the driving of the high-pressure air. When the nailing piston carries out the downward nailing action, the lateral holes function to take in the high-pressure air via the nail push air passage into the nail push cylinder chamber, and the nail push piston is moved by the driving of the high-pressure air to catch a nail. On the other hand, when the nailing piston carries out the upward returning action, the nail push air passage is released, and the high-pressure air in the nail push cylinder chamber is quickly released, whereby the nail push piston is returned to carry out nail pushing. COPYRIGHT: (C)2008,JPO&INPIT
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