| 摘要 |
PROBLEM TO BE SOLVED: To provide a driving machine capable of ejecting dirt and dust entered between a nose part and a tip member. SOLUTION: The driving machine is equipped with a driver blade 8 for driving a fastener, a nose portion 5 for guiding the driver blade 8 and having a first injection port 4, a push lever 13 movable in the driving direction relative to the nose portion 5 and having the upper end coordinated with a trigger means, and a contact member 15 disposed on the lower end of the push lever 13 and having a second injection port 21. A taper portion 15b is formed on an upper part of the contact member 15 where a diameter of the upper part is larger. The upper end diameter of the tapered portion 15b is made larger than that of the first injection port 4 of the nose portion 5. A plurality of grooves are formed in an injecting direction on an inner peripheral surface of the second injection port 21 of the contact member 15. COPYRIGHT: (C)2010,JPO&INPIT
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