| 摘要 |
<P>PROBLEM TO BE SOLVED: To secure safety by preventing or suppressing the generation of excessive energy when supercharging pressure exceeds a set pressure value. <P>SOLUTION: In a gas internal combustion type nailing machine having a hammering cylinder 5 housing a hammering piston 6, a combustion chamber 11 openably arranged by upward/downward movement of a cylindrical movable housing 8 above the hammering cylinder 5, a compressor 25 for supplying compressed air for supercharging into the combustion chamber 11, and a fuel supplying unit 19 for supplying fuel gas into the combustion chamber 11, mixing, igniting, and combusting the supercharged fuel gas and air, the operation of a trigger 40 for igniting and combusting is invalidated when the supercharging pressure by the compressed air for supercharging supplied into the combustion chamber 11 exceeds the set pressure value. <P>COPYRIGHT: (C)2012,JPO&INPIT |
